外文文献和中文翻译.internetbasedcommunications
互联网网络营销外文文献翻译
互联网网络营销外文文献翻译(含：英文原文及中文译文)文献出处：Peter Kenzelmann. Technical Consultancy in Internationalization[J]. International Marketing Review, 2006, 4(3):20-29. 英文原文The technical basis of network marketingPeter KenzelmannNetwork marketing is based on the technology infrastructure of computer network technology, as represented by information technology. Computer networks of modern communications technology and computer technology to the product of combining it in different geographic regions and specialized computer equipment for external interconnection lines of communication into a large, powerful networks, thus enabling a large number of computers can easily transmit information to each other, share hardware, software, data and other resources. And network marketing is closely related to the computer network there are three types: the Internet, Extranet and Intranet.The theoretical basis for the network marketingTheoretical foundation of network marketing is direct marketing network theory, network theory of relationship marketing, marketing theory and network software to integrate marketing theory.(A) Direct Response Network Marketing TheoryInternet marketing as an effective direct marketing strategy, network marketing that can be tested and measurable and can be evaluated and controlled. Therefore, the characteristics of the use of network marketing, you can greatly improve the efficiency of marketing and marketing decision-making effectiveness of the implementation.Direct marketing theory is the 20th century, one of the 80's the concept of eye-catching. Direct Marketing Association of the United States for its definition is: "a place to produce any measurable response and (or) use the Stock Exchange reached one or more advertising media marketing system interaction." Directly Marketing the key to the theory that network marketing is that it can be tested, measurable, can be evaluated, which a fundamental solution to evaluate the effect of the traditional difficulties in marketing and marketing for more scientific decision-making possible. (B) the network theory of relationship marketingRelationship Marketing is a great importance since 1990 by the marketing theory, which mainly includes two basic points: First of all, in the macro level will be recognized that the scope of marketing a wide range of areas, including customer market, the labor market, the supply market , the internal market, the market stakeholders, as well as the affected market (government, financial markets); at the micro level, recognizing that the relationship between business and customers areconstantly changing, the core of marketing should be a simple one-time past transactions to a focus on maintaining relations up long-term relationships. Socio-economic system, enterprises are a major subsystem, corporate marketing objectives by many external factors to the impact of marketing activities of enterprises is a consumers, competitors, suppliers, distributors, government agencies and social organizations the process of interaction, the correct understanding of the relationship between the individual and the organization is the core of marketing is also key to business success or failure.The core of relationship marketing is to keep customers, to provide customers with a high degree of satisfaction with the value of products and services, by strengthening the links with customers to provide effective customer service, to maintain long-term relationship with customers. And long-term customer relations based on the marketing activities to achieve the marketing objectives of companies. The implementation of relationship marketing is not to damage the cost of business interests, according to research, for marketing a new customer costs five times the cost of the old customers, so to strengthen relations with customers and build customer loyalty can bring long-term enterprise interests, it is to promote a win-win strategy for businesses and customers. The Internet as an effective two-way channels of communication between businesses and customers can achieve low-cost communication andexchange costs, which companies build long-term relationships with customers to provide effective protection. This is because, first of all, enterprises can use the Internet to receive customer orders directly, customers can make their own personalized needs. Enterprises in accordance with customer demand for personalized use of flexible production technology to meet the customer needs to maximize customers in the consumer products and services to create more value. Enterprise customers can also understand the market demand, market segments and target markets, minimize marketing costs and increase the reaction rate on the market. Secondly, the use of the Internet companies to provide customers with better services and keep in touch with customers. Internet time and space constraints are not the characteristics of the convenience of our customers to maximize communication with the enterprise, customers can make use of the Internet in the shortest possible time in an easy way to access business services. At the same time, trading via the Internet to the entire enterprise can be achieved from the product quality, quality of service, such as transaction services to the entire process of quality control.On the other hand, enterprises can also be via the Internet with business-related companies and organizations build relationships and achieve win-win development. Internet as a channel of communication between the cheapest, it can help lower costs in the supply ofbusiness-to-business yet, distributors such as the establishment of collaborative partnerships. Cases such as in front of the computer company Lenovo, through the establishment of e-business systems and management information systems with the distributors of information sharing, reduce inventory costs and transaction costs, and close cooperation between the two sides. Relating to the application of network theory will be the strategy behind the marketing services network in detail.(C) The network of soft marketing theoryMarketing theory is soft against the industrial economy to the era of mass production for the main features of the "strong sales" of the new theory, the theory suggests that when customers buy products not only meet the basic physiological needs, but also to meet the mental and psychological level demand. Therefore, the soft marketing is one of the main characteristics of the follow netiquette, etiquette on the network through the use of clever marketing to obtain desired results. It emphasizes the marketing activities of enterprises at the same time the need to respect the feelings of consumers and the body read, so that consumers will be able to comfortably take the initiative to receive the marketing activities of enterprises. Traditional marketing activities can best embody the characteristics of a strong marketing promotions are two: the traditional advertising and marketing staff. In traditional advertising,consumers are often forced to passive reception of advertising messages, "bombing", and its goal is to impart information through continuous means the hearts of consumers impressed, as to whether the consumer was not willing to accept the need for need not be taken into account; marketing personnel, the marketing staff does not consider the object is willing to sell and needs, but according to the marketing staff to determine their own marketing activities carried out forcibly.On the Internet, because information exchange is a free, equal, open and interactive, to stress that mutual respect and communication, on-line users pay more attention to the protection and privacy of personal experience. Therefore, using the traditional means of marketing a strong start in the Internet marketing activities are bound to backfire, such as the American company AOL has forced their users to send E-mail advertising, the results lead to the unanimous opposition of users, many users agreed to AOL at the same time the company server E-mail to retaliate, with the result that AOL's E-mail mail server in a paralyzed state, and finally had to apologize to quell public indignation. Network marketing is just soft from the consumer's experience and needs and take pull-type strategy to attract consumers concerned about the marketing effectiveness of enterprises to achieve. Network on the Internet to carry out marketing activities, in particular promotional activities must follow certain rules of network formation of virtual communities, some also known as"netiquette (Netiquette)". Network marketing is soft netiquette rules to follow based on the clever use of marketing to achieve a subtle effect. Marketing theory on network application software in the network marketing sales strategy specific details.(D) Network Integrated MarketingIn the current post-industrial society, the tertiary industry in the development of the service sector is the major economic growth point, the traditional manufacturing-based to being service-oriented development, new service industries such as finance, communications, transportation and other industries the sun at high noon. Post-industrial society requires the development of enterprises must be based on service-oriented, it is necessary to customers as the center, to provide customers with timely and appropriate manner, as appropriate services, the maximum extent possible to meet customer demand. Internet time and space as a cross-transmission of "superconductive" media, can provide timely customer service is located at the same time interactivity of the Internet can understand customer needs and provide targeted response, so the Internet era can be said to be the most consumers an attractive marketing tool.Network of integrated marketing theory include the following key points:Network marketing requires, first of all the consumers into the entiremarketing process to the needs of their entire marketing process from the beginning.Network marketing distribution system for the enterprise as well as stakeholders to be more closely together.Corporate interests and the interests of customers to integrate together.Internet on the role of marketing, you can through the 4Ps (product / service, pricing, distribution, promotion) play an important role in binding. The use of the Internet traditional 4Ps marketing mix can be better with the customer as the center of the 4Cs (customer, cost, convenience, communication) to combine.1. Products and services to customers as the centerAs the Internet has a very good interaction and guiding the user through the Internet under the guidance of the enterprise to choose the product or service or specific requirements of enterprise customers to choose based on the timely production and requirements and provide timely service, making Customer inter-temporal and spatial requirements are met by the products and services; On the other hand, enterprises can also keep abreast of customer needs and customer requirements in accordance with the timely production and marketing organizations to provide the production efficiency and marketing effectiveness. Such as the United States PC sales company Dell Inc., or a loss in 1995, but in1996, their sales via the Internet to computers, the performance of 100 percent growth, due to customers via the Internet, you can design in the company's home page to choose and combination of computers, the company's production department immediately upon request, production, and sent through the postal service company, so companies can achieve zero inventory production, especially in the sharp decline in prices of computer components of the era, inventory will not only reduce the inventory costs can be avoided also because of losses brought about by high-priced stock.2. Customer acceptable cost pricingThe cost of traditional production-based pricing in the market-oriented marketing is to be discarded. The price of new customers should be based on acceptable cost pricing, and based on the cost to organize the production and marketing. Customer-centric enterprise pricing, customers must be the determination of market demand and the price accepted standards, otherwise the cost to the customer to accept the pricing is a castle in the air. Business on the Internet can be very easy to implement, the customer can be made via the Internet acceptable cost, the cost of business in accordance with customers to provide flexible product design and production program for the user to choose until after the customer agrees to confirm the production and marketing organizations, all All these are clients of the server program in the company under theguidance and does not require specialized services and, therefore, extremely low cost. At present, the United States, General Motors Corp. to allow customers on the Internet through the company's own guidance system of the design and assembly of motor vehicles to meet their needs, users first determine the criteria for acceptable price, and then according to the price limit system to meet the requirements of style show vehicle, the user can also be used for appropriate changes, the company producing the final product just to meet the customer requirements of price and performance.3. Products to facilitate the distribution of customer-orientedNetwork marketing is one-to-one distribution channels, cross-selling of space-time, customers can order anytime, anywhere using the Internet and purchase products. Iron and steel manufacturers in France still a Luolin Zinox for example, the company was founded in 8 years ago, because of the introduction of e-mail and the world order system, so that processing time from 15 days to 24 hours. At present, the company is using the Internet to provide better than the opponent and more efficient services. The company's internal network and vehicle manufacturers to establish contact so that they could demand the other party promptly after the production of steel to each other online.4. Repressively turn promotions to strengthen communication and contacts with customersIs the promotion of traditional enterprises, through certain media or tools of oppression customers to strengthen the company's customers and product acceptance and loyalty, customers are passive and accept the lack of communication with customers and contacts at the same time The high cost of the company's sales. Internet marketing is a one-on-one and interactive, and customers can participate in the company's marketing activities in the past, so the Internet can strengthen communication with customers and contacts and a better understanding of customer needs, attracted more customers agree . The U.S. company Yahoo's new star (Yahoo!) Company to develop a network in Internet information retrieval tools for classification, as the products are highly interactive, the user can think it is important for their classification information to Yahoo Yahoo The company immediately joined the classification of information products for the use of other users, so no need for advertising their products on well known, and in a short span of two years the company's stock market value of billions of dollars, an increase of as much as several hundred times.中文译文网络营销的技术基础彼得·肯泽尔曼网络营销基于以信息技术为代表的计算机网络技术的技术基础。
参考文献中文的英文对照
参考文献中文的英文对照在学术论文中，参考文献是非常重要的一部分，它可以为论文的可信度和学术性增添分数，其中包括中文和英文文献。
以下是一些常见的参考文献中文和英文对照：1. 书籍 Book中文：王小明. 计算机网络技术. 北京：清华大学出版社，2018.英文：Wang, X. Computer Network Technology. Beijing: Tsinghua University Press, 2018.2. 学术期刊 Article in Academic Journal中文：张婷婷，李伟. 基于深度学习的影像分割方法. 计算机科学与探索，2019，13(1)：61-67.英文：Zhang, T. T., Li, W. Image Segmentation Method Based on Deep Learning. Computer Science and Exploration, 2019, 13(1): 61-67.3. 会议论文 Conference Paper中文：王维，李丽. 基于云计算的智慧物流管理系统设计. 2019年国际物流与采购会议论文集，2019：112-117.英文：Wang, W., Li, L. Design of Smart Logistics Management System Based on Cloud Computing. Proceedings of the 2019 International Conference on Logistics and Procurement, 2019: 112-117.4. 学位论文 Thesis/Dissertation中文：李晓华. 基于模糊神经网络的水质评价模型研究. 博士学位论文，长春：吉林大学，2018.英文：Li, X. H. Research on Water Quality Evaluation Model Based on Fuzzy Neural Network. Doctoral Dissertation, Changchun: Jilin University, 2018.5. 报告 Report中文：国家统计局. 2019年国民经济和社会发展统计公报. 北京：中国统计出版社，2019.英文：National Bureau of Statistics. Statistical Communique of the People's Republic of China on the 2019 National Economic and Social Development. Beijing: China Statistics Press, 2019.以上是一些常见的参考文献中文和英文对照，希望对大家写作有所帮助。
计算机网络中英文对照外文翻译文献
中英文资料外文翻译计算机网络计算机网络，通常简单的被称作是一种网络，是一家集电脑和设备为一体的沟通渠道，便于用户之间的沟通交流和资源共享。
网络可以根据其多种特点来分类。
计算机网络允许资源和信息在互联设备中共享。
一．历史早期的计算机网络通信始于20世纪50年代末，包括军事雷达系统、半自动地面防空系统及其相关的商业航空订票系统、半自动商业研究环境。
1957年俄罗斯向太空发射人造卫星。
十八个月后，美国开始设立高级研究计划局(ARPA)并第一次发射人造卫星。
然后用阿帕网上的另外一台计算机分享了这个信息。
这一切的负责者是美国博士莱德里尔克。
阿帕网于来于自印度，1969年印度将其名字改为因特网。
上世纪60年代，高级研究计划局(ARPA)开始为美国国防部资助并设计高级研究计划局网(阿帕网)。
因特网的发展始于1969年，20世纪60年代起开始在此基础上设计开发，由此，阿帕网演变成现代互联网。
二．目的计算机网络可以被用于各种用途:为通信提供便利:使用网络，人们很容易通过电子邮件、即时信息、聊天室、电话、视频电话和视频会议来进行沟通和交流。
共享硬件:在网络环境下，每台计算机可以获取和使用网络硬件资源，例如打印一份文件可以通过网络打印机。
共享文件：数据和信息: 在网络环境中，授权用户可以访问存储在其他计算机上的网络数据和信息。
提供进入数据和信息共享存储设备的能力是许多网络的一个重要特征。
共享软件:用户可以连接到远程计算机的网络应用程序。
信息保存。
安全保证。
三．网络分类下面的列表显示用于网络分类：3．1连接方式计算机网络可以据硬件和软件技术分为用来连接个人设备的网络，如：光纤、局域网、无线局域网、家用网络设备、电缆通讯和G.hn（有线家庭网络标准）等等。
以太网的定义，它是由IEEE 802标准，并利用各种媒介，使设备之间进行通信的网络。
经常部署的设备包括网络集线器、交换机、网桥、路由器。
无线局域网技术是使用无线设备进行连接的。
通信技术类英文文献
通信技术类英文文献IntroductionIn today’s digital age, communication technology plays a crucial role in connecting people, businesses, and devices. From traditional landline telephones to modern smartphones and internet-based communication platforms, the field of communication technology has witnessed significant advancements. This article aims to explore various aspects of communication technology, including its history, types, applications, and future trends.History of Communication Technology1.Early forms of communication technology–Smoke signals–Carrier pigeons–Semaphore telegraphs2.Invention of the telegraph–Samuel Morse and Morse code–Telegraph lines and the expansion of communication networks 3.Telephone revolution–Alexander Graham Bell and the invention of the telephone–Introduction of telephone exchanges and switchboards4.Birth of wireless communication–Guglielmo Marconi and radio transmission–Wireless telegraphy and its impact on long-distancecommunicationTypes of Communication Technology1.Wired communication technology–Traditional landline telephones–Ethernet cables for internet connectivity–Fiber optic cables for high-speed data transmission2.Wireless communication technology–Radio communication–Cellular networks (2G, 3G, 4G, and 5G)–Satellite communication3.Internet-based communication technology–Email and instant messaging–Voice over Internet Protocol (VoIP)–Video conferencing and online collaboration toolsApplications of Communication Technology1.Personal communication–Mobile phones and smartphones–Social media platforms–Messaging apps2.Business communication–Teleconferencing and virtual meetings–Cloud-based collaboration tools–Customer relationship management (CRM) systems3.Healthcare communication–Telemedicine and remote patient monitoring–Electronic health records (EHR)–Communication systems in hospitals and healthcare facilities munication in education–Online learning platforms–Virtual classrooms and webinars–Educational apps and softwareFuture Trends in Communication Technology1.Internet of Things (IoT)–Interconnected devices and sensors–Smart homes and cities2.5G and beyond–Faster data speeds and lower latency–Enhanced connectivity for autonomous vehicles and IoT devices3.Artificial Intelligence (AI) in communication–Chatbots and virtual assistants–Natural language processing for improved communication4.Blockchain technology in communication–Secure and transparent data exchange–Decentralized communication networksConclusionCommunication technology has evolved significantly over the years, revolutionizing the way we connect and interact. From the early forms of communication to the advent of wireless and internet-based technologies, communication has become faster, more efficient, and accessible to a wider audience. As we look towards the future, emerging trends such as IoT, 5G, AI, and blockchain promise to further transform the field of communication technology, opening up new possibilities and opportunities for individuals, businesses, and society as a whole.。
本科毕业论文中英文翻译--Wireless-Communications无线通信
Wireless Communications*byJoshua S. Gans, Stephen P。
King and Julian Wright1。
IntroductionIn 1895, Guglielmo Marconi opened the way for modern wireless communications by transmitting the three—dot Morse code for the letter ‘S' over a distance of th ree kilometers using electromagnetic waves。
From this beginning，wireless communications has developed into a key element of modern society. From satellite transmission, radio and television broadcasting to the now ubiquitous mobile telephone，wireless communications has revolutionized the way societies function.This chapter surveys the economics literature on wireless communications。
Wireless communications and the economic goods and services that utilise it have some special characteristics that have motivated specialised studies. First，wireless communications relies on a scarce resource –namely，radio spectrum –the property rights for which were traditionally vested with the state。
通信工程外文文献翻译
毕业设计（论文）的外文文献翻译原始资料的题目/来源：Fundamentals of wireless communications by David Tse翻译后的中文题目：无线通信基础专业通信工程学生王晓宇学号110240318班号1102403指导教师杨洪娟翻译日期2015年6月15日外文文献的中文翻译7．mimo：空间多路复用与信道建模本书我们已经看到多天线在无线通信中的几种不同应用。
在第3章中，多天线用于提供分集增益，增益无线链路的可靠性，并同时研究了接受分解和发射分解，而且，接受天线还能提供功率增益。
在第5章中，我们看到了如果发射机已知信道，那么多采用多幅发射天线通过发射波束成形还可以提供功率增益。
在第6章中，多副发射天线用于生产信道波动，满足机会通信技术的需要，改方案可以解释为机会波束成形，同时也能够提供功率增益。
章以及接下来的几章将研究一种利用多天线的新方法。
我们将会看到在合适的信道衰落条件下，同时采用多幅发射天线和多幅接收天线可以提供用于通信的额外的空间维数并产生自由度增益，利用这些额外的自由度可以将若干数据流在空间上多路复用至MIMO信道中，从而带来容量的增加：采用n副发射天线和接受天线的这类MIMO 信道的容量正比于n。
过去一度认为在基站采用多幅天线的多址接入系统允许若干个用户同时与基站通信，多幅天线可以实现不同用户信号的空间隔离。
20世纪90年代中期，研究人员发现采用多幅发射天线和接收天线的点对点信道也会出现类似的效应，即使当发射天线相距不远时也是如此。
只要散射环境足够丰富，使得接受天线能够将来自不同发射天线的信号分离开，该结论就成立。
我们已经了解到了机会通信技术如何利用信道衰落，本章还会看到信道衰落对通信有益的另一例子。
将机会通信与MIMO技术提供的性能增益的本质进行比较和对比是非常的有远见的。
机会通信技术主要提供功率增益，改功率增益在功率受限系统的低信噪比情况下相当明显，但在宽带受限系统的高信噪比情况下则很不明显。
计算机外文翻译（完整）
计算机外⽂翻译（完整）毕业设计(论⽂)外⽂资料翻译专业：计算机科学与技术姓名：王成明学号：06120186外⽂出处：The History of the Internet附件： 1.外⽂原⽂ 2.外⽂资料翻译译⽂；附件1：外⽂原⽂The History of the InternetThe Beginning - ARPAnetThe Internet started as a project by the US government. The object of the project was to create a means of communications between long distance points, in the event of a nation wide emergency or, more specifically, nuclear war. The project was called ARPAnet, and it is what the Internet started as. Funded specifically for military communication, the engineers responsible for ARPANet had no idea of the possibilities of an "Internet."By definition, an 'Internet' is four or more computers connected by a network.ARPAnet achieved its network by using a protocol called TCP/IP. The basics around this protocol was that if information sent over a network failed to get through on one route, it would find another route to work with, as well as establishing a means for one computer to "talk" to another computer, regardless of whether it was a PC or a Macintosh.By the 80's ARPAnet, just years away from becoming the more well known Internet, had 200 computers. The Defense Department, satisfied with ARPAnets results, decided to fully adopt it into service, and connected many military computers and resources into the network. ARPAnet then had 562 computers on its network. By the year 1984, it had over 1000 computers on its network.In 1986 ARPAnet (supposedly) shut down, but only the organization shut down, and the existing networks still existed between the more than 1000 computers. It shut down due to a failied link up with NSF, who wanted to connect its 5 countywide super computers into ARPAnet.With the funding of NSF, new high speed lines were successfully installed at line speeds of 56k (a normal modem nowadays) through telephone lines in 1988. By that time, there were 28,174 computers on the (by then decided) Internet. In 1989 there were 80,000 computers on it. By 1989, there were290,000.Another network was built to support the incredible number of people joining. It was constructed in 1992.Today - The InternetToday, the Internet has become one of the most important technological advancements in the history of humanity. Everyone wants to get 'on line' to experience the wealth of information of the Internet. Millions of people now use the Internet, and it's predicted that by the year 2003 every single person on the planet will have Internet access. The Internet has truly become a way of life in our time and era, and is evolving so quickly its hard to determine where it will go next, as computer and network technology improve every day.HOW IT WORKS:It's a standard thing. People using the Internet. Shopping, playing games,conversing in virtual Internet environments.The Internet is not a 'thing' itself. The Internet cannot just "crash." It functions the same way as the telephone system, only there is no Internet company that runs the Internet.The Internet is a collection of millioins of computers that are all connected to each other, or have the means to connect to each other. The Internet is just like an office network, only it has millions of computers connected to it.The main thing about how the Internet works is communication. How does a computer in Houston know how to access data on a computer in Tokyo to view a webpage?Internet communication, communication among computers connected to the Internet, is based on a language. This language is called TCP/IP. TCP/IP establishes a language for a computer to access and transmit data over the Internet system.But TCP/IP assumes that there is a physical connecetion between onecomputer and another. This is not usually the case. There would have to be a network wire that went to every computer connected to the Internet, but that would make the Internet impossible to access.The physical connection that is requireed is established by way of modems,phonelines, and other modem cable connections (like cable modems or DSL). Modems on computers read and transmit data over established lines,which could be phonelines or data lines. The actual hard core connections are established among computers called routers.A router is a computer that serves as a traffic controller for information.To explain this better, let's look at how a standard computer might viewa webpage.1. The user's computer dials into an Internet Service Provider (ISP). The ISP might in turn be connected to another ISP, or a straight connection into the Internet backbone.2. The user launches a web browser like Netscape or Internet Explorer and types in an internet location to go to.3. Here's where the tricky part comes in. First, the computer sends data about it's data request to a router. A router is a very high speed powerful computer running special software. The collection of routers in the world make what is called a "backbone," on which all the data on the Internet is transferred. The backbone presently operates at a speed of several gigabytes per-second. Such a speed compared to a normal modem is like comparing the heat of the sun to the heat of an ice-cube.Routers handle data that is going back and forth. A router puts small chunks of data into packages called packets, which function similarly to envelopes. So, when the request for the webpage goes through, it uses TCP/IP protocols to tell the router what to do with the data, where it's going, and overall where the user wants to go.4. The router sends these packets to other routers, eventually leadingto the target computer. It's like whisper down the lane (only the information remains intact).5. When the information reaches the target web server, the webserver then begins to send the web page back. A webserver is the computer where the webpage is stored that is running a program that handles requests for the webpage and sends the webpage to whoever wants to see it.6. The webpage is put in packets, sent through routers, and arrive at the users computer where the user can view the webpage once it is assembled.The packets which contain the data also contain special information that lets routers and other computers know how to reassemble the data in the right order.With millions of web pages, and millions of users, using the Internet is not always easy for a beginning user, especially for someone who is not entirely comfortale with using computers. Below you can find tips tricks and help on how to use main services of the Internet.Before you access webpages, you must have a web browser to actually be able to view the webpages. Most Internet Access Providers provide you with a web browser in the software they usually give to customers; you. The fact that you are viewing this page means that you have a web browser. The top two use browsers are Netscape Communicator and Microsoft Internet Explorer. Netscape can be found at /doc/bedc387343323968011c9268.html and MSIE can be found at /doc/bedc387343323968011c9268.html /ie.The fact that you're reading this right now means that you have a web browser.Next you must be familiar with actually using webpages. A webpage is a collection of hyperlinks, images, text, forms, menus, and multimedia. To "navigate" a webpage, simply click the links it provides or follow it's own instructions (like if it has a form you need to use, it will probably instruct you how to use it). Basically, everything about a webpage is made to be self-explanetory. That is the nature of a webpage, to be easily navigatable."Oh no! a 404 error! 'Cannot find web page?'" is a common remark made by new web-users.Sometimes websites have errors. But an error on a website is not the user's fault, of course.A 404 error means that the page you tried to go to does not exist. This could be because the site is still being constructed and the page hasn't been created yet, or because the site author made a typo in the page. There's nothing much to do about a 404 error except for e-mailing the site administrator (of the page you wanted to go to) an telling him/her about the error.A Javascript error is the result of a programming error in the Javascript code of a website. Not all websites utilize Javascript, but many do. Javascript is different from Java, and most browsers now support Javascript. If you are using an old version of a web browser (Netscape 3.0 for example), you might get Javascript errors because sites utilize Javascript versions that your browser does not support. So, you can try getting a newer version of your web browser.E-mail stands for Electronic Mail, and that's what it is. E-mail enables people to send letters, and even files and pictures to each other.To use e-mail, you must have an e-mail client, which is just like a personal post office, since it retrieves and stores e-mail. Secondly, you must have an e-mail account. Most Internet Service Providers provide free e-mail account(s) for free. Some services offer free e-mail, like Hotmail, and Geocities.After configuring your e-mail client with your POP3 and SMTP server address (your e-mail provider will give you that information), you are ready to receive mail.An attachment is a file sent in a letter. If someone sends you an attachment and you don't know who it is, don't run the file, ever. It could be a virus or some other kind of nasty programs. You can't get a virus justby reading e-mail, you'll have to physically execute some form of program for a virus to strike.A signature is a feature of many e-mail programs. A signature is added to the end of every e-mail you send out. You can put a text graphic, your business information, anything you want.Imagine that a computer on the Internet is an island in the sea. The sea is filled with millions of islands. This is the Internet. Imagine an island communicates with other island by sending ships to other islands and receiving ships. The island has ports to accept and send out ships.A computer on the Internet has access nodes called ports. A port is just a symbolic object that allows the computer to operate on a network (or the Internet). This method is similar to the island/ocean symbolism above.Telnet refers to accessing ports on a server directly with a text connection. Almost every kind of Internet function, like accessing web pages,"chatting," and e-mailing is done over a Telnet connection.Telnetting requires a Telnet client. A telnet program comes with the Windows system, so Windows users can access telnet by typing in "telnet" (without the "'s) in the run dialog. Linux has it built into the command line; telnet. A popular telnet program for Macintosh is NCSA telnet.Any server software (web page daemon, chat daemon) can be accessed via telnet, although they are not usually meant to be accessed in such a manner. For instance, it is possible to connect directly to a mail server and check your mail by interfacing with the e-mail server software, but it's easier to use an e-mail client (of course).There are millions of WebPages that come from all over the world, yet how will you know what the address of a page you want is?Search engines save the day. A search engine is a very large website that allows you to search it's own database of websites. For instance, if you wanted to find a website on dogs, you'd search for "dog" or "dogs" or "dog information." Here are a few search-engines.1. Altavista (/doc/bedc387343323968011c9268.html ) - Web spider & Indexed2. Yahoo (/doc/bedc387343323968011c9268.html ) - Web spider & Indexed Collection3. Excite (/doc/bedc387343323968011c9268.html ) - Web spider & Indexed4. Lycos (/doc/bedc387343323968011c9268.html ) - Web spider & Indexed5. Metasearch (/doc/bedc387343323968011c9268.html ) - Multiple searchA web spider is a program used by search engines that goes from page to page, following any link it can possibly find. This means that a search engine can literally map out as much of the Internet as it's own time and speed allows for.An indexed collection uses hand-added links. For instance, on Yahoo's site. You can click on Computers & the Internet. Then you can click on Hardware. Then you can click on Modems, etc., and along the way through sections, there are sites available which relate to what section you're in.Metasearch searches many search engines at the same time, finding the top choices from about 10 search engines, making searching a lot more effective.Once you are able to use search engines, you can effectively find the pages you want.With the arrival of networking and multi user systems, security has always been on the mind of system developers and system operators. Since the dawn of AT&T and its phone network, hackers have been known by many, hackers who find ways all the time of breaking into systems. It used to not be that big of a problem, since networking was limited to big corporate companies or government computers who could afford the necessary computer security.The biggest problem now-a-days is personal information. Why should you be careful while making purchases via a website? Let's look at how the internet works, quickly.The user is transferring credit card information to a webpage. Looks safe, right? Not necessarily. As the user submits the information, it is being streamed through a series of computers that make up the Internet backbone.The information is in little chunks, in packages called packets. Here's the problem: While the information is being transferred through this big backbone, what is preventing a "hacker" from intercepting this data stream at one of the backbone points?Big-brother is not watching you if you access a web site, but users should be aware of potential threats while transmitting private information. There are methods of enforcing security, like password protection, an most importantly, encryption.Encryption means scrambling data into a code that can only be unscrambled on the "other end." Browser's like Netscape Communicator and Internet Explorer feature encryption support for making on-line transfers. Some encryptions work better than others. The most advanced encryption system is called DES (Data Encryption Standard), and it was adopted by the US Defense Department because it was deemed so difficult to 'crack' that they considered it a security risk if it would fall into another countries hands.A DES uses a single key of information to unlock an entire document. The problem is, there are 75 trillion possible keys to use, so it is a highly difficult system to break. One document was cracked and decoded, but it was a combined effort of14,000 computers networked over the Internet that took a while to do it, so most hackers don't have that many resources available.附件2：外⽂资料翻译译⽂Internet的历史起源——ARPAnetInternet是被美国政府作为⼀项⼯程进⾏开发的。
网络在线学习外文文献翻译中英文
网络在线学习外文翻译中英文英文Online learning: Adoption, continuance, and learning outcome—A review ofliteratureRitanjali Panigrahi, Praveen Srivastava, Dheeraj Sharma AbstractThe use of Technology to facilitate better learning and training is gaining momentum worldwide, reducing the temporal and spatial problems associated with traditional learning. Despite its several benefits, retaining students in online platforms is challenging. Through a literature review of the factors affecting adoption, the continuation of technology use, and learning outcomes, this paper discusses an integration of online learning with virtual communities to foster student engagement for obtaining better learning outcomes. Future directions have been discussed, the feedback mechanism which i s an antecedent of students’ continuation intention has a lot of scopes to be studied in the virtual community context. The use of Apps in m-learning and the use of cloud services can boost the ease and access of online learning to users and organizations.Keywords: Online learning, Virtual community, Technology adoption, Technology continuation, Learning outcomeIntroductionOnline learning and training are gaining popularity worldwide, reducing the temporal and spatial problems associated with the traditional form of education. The primary factors behind using online learning are not only to improve access to education and training, and quality of learning, but also to reduce the cost and improve the cost-effectiveness of education (Bates, 1997). Online learning is mainly provided in two ways—in synchronous and asynchronous environments (Jolliffe, Ritter, & Stevens, 2012). The time lag attributes of asynchronous learning unlike synchronous learning in online platforms take the advantage of accessing materials anytime and anywhere, ability to reach a greater mass at the same time, and uniformity of content. Online learning along with face-to-face learning is successfullyused in industry as well as academia with positive outcomes (Chang, 2016). The geographically distributed team in an organization can get their skill training through online platforms at the same time, gaining a greater level of competitiveness. Online learning is also beneficial for students as they can learn at their own pace with the availability of online materials. The e-learning market is becoming popular and widely adopted by the education sector and industry. The growth of the e-learning market can be demonstrated by the fact that the global e-learning market is expected to reach 65.41 billion dollars by 2023 growing at a cumulative average growth rate of 7.07% (Research and Markets, 2018a). In addition to this, the global learning management system (LMS) is expected to increase from 5.05 billion USD in 2016 to 18.44 billion USD by 2025 growing at a rate of 15.52% (Research and Markets, 2018b).Despite several advantages of online learning such as improving access to education and training, improving the quality of learning, reducing the cost and improving the cost-effectiveness of education, retaining students in such platforms is a key challenge with a high attrition rate (Perna et al., 2014). Several strategies such as briefing, buddying, and providing feedback on the platform are proposed to retain and engage students (Nazir, Davis, & Harris, 2015). It is also noted that more self-discipline is required by students in online education, unlike traditional classroom education (Allen & Seaman, 2007). Keeping users enrolled and engaged is a challenging job as a personal touch by the instructor is missing or limited. The learning engagement which is an important antecedent for learning outcome is lower for technology-mediated learning than face-to-face learning (Hu & Hui, 2012). As a higher amount of money is spent on infrastructure, staff training, etc., organizations seek to take maximum benefit from online learning which requires an understanding of the factors that drive the adoption, continuation intention, and learning outcome of users on online learning platforms. Therefore, the primary focus of research remains on how to retain online learning users, and increase the efficiency of the online learning.Users may learn inside and outside the classroom; inside classroom learning isthrough instructors either from face-to-face, pure online or blended learning (combination of face-to-face and pure online learning) whereas outside classroom learning is conducted by users anytime and anywhere after the class. The exponential growth of the Internet has enabled individuals to share information, participate, and collaborate to learn from virtual communities (VC) anytime and anywhere (Rennie & Morrison, 2013). In a virtual community, people do everything that they do in real life but leaving their bodies behind (Rheingold, 2000). Virtual communities keep its users engaged based on familiarity, perceived similarity, and trust by creating a sense of belongingness (Zhao, Lu, Wang, Chau, & Zhang, 2012). It is essential to assess the role of a less constrained informal mode of learning (Davis & Fullerton, 2016) like virtual communities in the formal learning to engage and retain students.DiscussionGetting a new idea adopted even when it has obvious advantages is often very difficult (Rogers, 2003). Consistent with the previous statement, despite the advantages of online learning such as improving accessibility, quality, and reducing cost, it has a long way to go to be adopted and used by organizations because of the resistance at different levels (Hanley, 2018). The reasons for resistances offered by the employees in an organizations include perceived poor focus of the e-learning initiative, lack of time to learn new way of working, too much effort to change, lack of awareness, and resistance to change (Ali et al., 2016; Hanley, 2018). It is crucial from an institutional point of view to overcome the resistance to adopt and implement the online learning systems successfully.Understanding the factors of online learning adoption, continuation use intention, and learning outcomes are vital for an e-learning platform providing organization because the success of the platform depends on the successful adoption, continuation use, and finally achieving the desired outcomes. From the literature, it is found that the national culture affects the adoption and moderates the relationship between variables of adoption and use. Therefore, the results of adoption and use of technology might differ in different counties with different cultural dimensions. At a broader level, the perceived characteristics of innovation (of online learning) such as relativeadvantage, compatibility, complexity, trialability, and observability play a significant role in adoption. At an individual level, the primary factors of adoption are the individual expectancies such as the perceived usefulness, perceived ease of use, perceived enjoyment, performance expectancy, effort expectancy, etc., and the external influences such as subjective norm, social norms, surrounding conditions, national culture, social network characteristic, etc. On the other hand, the primary factors of continuation of technology use are the experiences of the individuals in the technology such as satisfaction, confirmation, self-efficacy, flow, trust, we-intention, sense of belongingness, immersion, IS qualities, etc. The perceived usefulness and perceived ease of use are found to be vital for both the technology adoption and continuation use. This implies that the usefulness of the technology and how easy the technology to use determines the adoption and continuation of technology. Apart from these technology enablers, the platform providers should consider the technology inhibitors which negatively impact the acceptance of the technology. The factors of the learning outcomes such as self-efficacy, virtual competence, engagement, design interventions, etc. should be considered before designing and delivering the content in the online learning platform to achieve optimum learning outcomes. The learners’ intention to use full e-learning in developing countries depends on the lea rners’ characteristics, and learners’ adoption of blended learning (Al-Busaidi, 2013). Studies for example by Verbert et al. (2014) have shown that blended learning yields the best outcome in terms of grade when students learn in online collaborative learning with teacher’s initiation and feedback. On the contrary, some studies have shown that contents such as business games do not need the interaction with the instructor; in fact, they are negatively related to perceived learning (Proserpio & Magni, 2012). MOOC (Massive Open Online Course) users have organized face-to-face meetings to fulfill their belongingness or social connectedness as a part of their learning activity (Bulger, Bright, & Cobo, 2015). This indicates that not everyone is good with a digitized form of learning, and hence both face-to-face and online components should be integrated for better outcomes.Lack of human connection is one of the limitations of online learning (Graham,2006) which may reduce the satisfaction level. To address this limitation, personalization functions of e-learning systems began. The satisfaction level, perceived and actual performance, self-efficacy scores increase in personalized online learning where learning materials are provided according to the cognitive capability and style of each individual (Xu, Huang, Wang, & Heales, 2014). Although personalization of e-learning systems is beneficial, they are socially and ethically harmful, and special attention should be given to issues such as privacy compromisation, lack of control, the commodification of education, and reduced individual capability (Ashman et al., 2014). Personal e-learning systems collect user information to understand the users’ interests and requirements for the learning which violates the privacy of individuals. The system utilizes the user information to show the personal content where the individuals do not have control over the learning content. Hence they are limited to certain personal contents which reduce their individual capabilities.Studies, for example, Zhao et al. (2012) have shown that VCs create a sense of belongingness and keeps the members engaged which results in improving the learning outcome, and users with same age groups are less likely to attrite (Freitas et al., 2015). Studies have shown that engagement is promoted when criteria such as problem-centric learning with clear expositions, peer interaction, active learning, instructor accessibility and passion, and using helpful course resources are met (Hew, 2015). Social interactions through social networking produce an intangible asset known as social capital (Coleman, 1988) in terms of the trust, collective action, and communication. Social capital is positively related to online learning satisfaction in group interactions, class interactions, learner-instructor interactions, as well as increasing students’ e-learning performance in groups (Lu, Yang, & Yu, 2013).The continuous development of mobile technology has expanded the opportunity to learn from mobile devices anywhere, anytime. M-Learning is much more beneficial for accessing education in remote areas and developing countries. The success of M-learning in organizations depends on organizational, people, and pedagogical factors apart from technological factors (Krotov, 2015). A range of mobiletechnologies such as laptops, smartphones, and tablets are embraced by students to support informal learning (Murphy, Farley, Lane, Hafeez-Baig, & Carter, 2014). Learning through mobile devices poses both opportunities as well as challenges; it provides flexibility in learning, on the other hand, it is a limitation for those who do not have connectivity and access to these devices. In student-centered learning especially collaborative and project-based learning, the use of mobile devices can be promoted by the mobile apps (Leinonen, Keune, Veermans, & Toikkanen, 2014). The use of mobile apps along with guidance from teachers integrates reflection in the classroom learning (Leinonen et al., 2014).Cloud computing provides organizations with a way to enhance their IT capabilities without a huge investment in infrastructure or software. The benefits of cloud computing are low cost, scalability, centralized data storage, no maintenance from user side (no software needed), easy monitoring, availability and recovery, and the challenges include it requires fast and reliable internet access, and privacy and security issues (El Mhouti, Erradi, & Nasseh, 2018). The primary factors for adoption of cloud computing in e-learning are ease of use, usefulness, and security (Kayali, Safie, & Mukhtar, 2016). Private cloud inside educational institutes can acquire the additional benefits in non-compromising the security and data privacy concerns associated with cloud computing (Mousannif, Khalil, & Kotsis, 2013). Cloud computing provides support to the online learning platforms to store and process the enormous amount of data generated. The problem of managing the increasing growth of online users, contents, and resources can be resolved by using cloud computing services (Fernandez, Peralta, Herrera, & Benitez, 2012).Future directionsFuture directions of research in online learning are as follows: First, the feedback mechanism used in online learning in institutions has not been used to measure the continuation intention in VCs. Feedback enables learners to define goals and track their progress through dashboard applications to promote awareness, reflection, and sense-making (Verbert et al., 2014). The students who received teachers’ feedback along with online learning achieved better grades than those who did not receivefeedback (Tsai, 2013) and students positively perceive the feedback systems more than the educators (Debuse & Lawley, 2016). Although immediate feedback is one of the dimensions of the flow (Csikszentmihalyi, 2014), the factor has not been studied in a VC context. It is vital for managers to check if feedback on a community post fosters the members’ continuation intention, and they should design user interfaces which encourage providing feedback. Second, it is high time to develop an integrated model for formal learning (online and blended) with VCs for students’ engagement. Informal learning as itself, not limited to the body of knowledge, rather, is the result of the interaction of people via communities of practice, networks, other forms, etc. (Rennie & Mason, 2004). The networked communities build intimacy and support which helps in self-directed learning (Rennie & Mason, 2004) which is an important parameter for online learning. Community commitment (Bateman et al., 2011), immersion (Shin et al., 2013), we-intentions (Tsai & Bagozzi, 2014), sense of belongingness (Zhao et al., 2012), etc. from the VC would help students to continue the engagement for a better learning outcome. Moreover, it is found that collaborative chat participation in MOOCs slows down the rate of attrition over time (Ferschke, Yang, Tomar, & Rosé, 2015). It is of great importance to check if learning outcome improves when the virtual community is integrated or embedded in the learning environment (online and blended). The educators and managers should encourage their students and employees to participate in VCs. Third, the growth of the adoption of mobile devices has expanded the arena of e-learning platforms. Integrating the virtual communities via a mobile platform with online learning can foster the student engagement resulting in higher learning outcome. Fourth, cloud computing has great potential in dealing with the scalability issues arising from the rise in numbers of users, content, and resources in online learning. Furthermore, it can provide tremendous benefits to organizations as well as users in terms of ease of access, flexibility, and lower cost. Although a few studies cover cloud computing infrastructure in education and pedagogic processes, the empirical research on the cloud computing for education is very shallow (Baldassarre, Caivano, Dimauro, Gentile, & Visaggio, 2018). As the mobile devices are often limited by storage space,future researchers are invited to carry out effective research on the integration of cloud computing and mobile learning to understand the factors affecting learning outcome.ConclusionUnderstanding the antecedents of e-learning adoption, continuance, and learning outcomes in online platforms are essential in ensuring the successful implementation of technology in learning and achieving the maximum benefits. This study shows factors such as PU, PEoU, PE, culture, attitude, subjective norms, system and information inhibitors, etc. contribute to the adoption of technology. Factors such as satisfaction, confirmation, user involvement, system quality, information quality, feedback, self-efficacy, social identity, perceived benefits, etc. determine the continuation of technology use. This implies factors for adoption, and continuation intentions vary; the attitude and usefulness of a system are essential for adoption while the experience and satisfaction in the environment lead to continuation intention. It is also found from the literature that the learning outcomes depend on the self-efficacy, collaborative learning, team cohesion, technology fit, learning engagement, self-regulation, interest, etc.The contribution of the paper can be summarized as: understanding the factors that are studied for adoption, continuance, learning outcomes in an online environment, and the provision of future research directions for educators and managers for successful implementation of technology in online platforms to achieve maximum benefits.中文在线学习的采用，持续性和学习成果:文献综述摘要在全世界范围内，使用技术促进更好的学习和培训的势头正在增强，减少了与传统学习相关的时空问题。
毕业论文外文资料原文译文
The Network is the PlatformAbstract：The network is the most cost-effective platform companies can use to integrate complex interactions for increased value and growthMost chief executive officers (CEOs) today are concerned about growth - and building their companies' capacity to grow, according to Cisco CEO John Chambers. "It doesn't matter where we are in the world," says Chambers. "Wherever I go, the first thing CEOs talk about is growth.""The second thing they want to discuss is how to build in the capability to grow, to use information technology (IT) to help enable - and perhaps even change - their business strategy, and how to do that with flexibility and agility," he adds.Today, business leaders are realizing that, by increasing the value of each transaction rather than simply trying to increase the number of transactions, they can enjoy a greater growth trajectory and better return on investment. By encouraging employees, partners and vendors to work more creatively and providing them with the IT tools to be more effective in their roles, companies are successfully transforming simple transactions into much more valuable interactions."In the next decade or two, interactions will bring a whole new level of innovation to us -- the ability to drive productivity at results that are five, ten maybe twelve times greater than what we have seen in the past. And one of the technologies that helps them increase the value of their transactions - and to move from transactions to interactions - is the network," Chambers explains.The Interactions NetThis 'Interactions Net' - an evolution of the way people communicate - signals that the technology sector's center of gravity is shifting to a standards-based platform: the Internet Protocol (IP) network. In this context, a platform has three basic attributes: it is based on open standards or interfaces; it is extensible and customizable, providing new market development possibilities; and it is pervasive. When these characteristics align, a huge new window of opportunity opens.As this new phase of interactions-centric development unfolds, the ubiquity and extensibility of IP is being combined with new levels of intelligence and capability to create the right network to serve as the basis for real-time business interactions. And the applications of the future are increasingly empowered by this network platform."The network is no longer just infrastructure, not just bandwidth," Chambers observes. "Instead, it is emerging as a secure platform for delivering the customized experience that 21st century consumers expect - whether that means delivering new services as a carrier, boosting productivity for businesses of any size or consumers looking for real-time, personalized entertainment and services." Blogs, wikis, social networks and collaborative applications all exemplify the new types of communication environment that the network enables."As the ever-more-intelligent network evolves into a platform, each of us will be able to communicate from any device and in whatever mode we choose," Chambers says. As the center of the Interactions Net, the network itself is emerging as an important IT platform - like the microprocessor, which has led innovation for the past 25 years. And the emergence of the network as a platform is changing the entire value chain of IT and placing the network squarely at the center of innovation: as many as 14 billion devices will be connected to the Internet by 2010, fueled by more and more computing tasks now being handled online, from phone calls to personalized searches to downloading entertainment.The communications transformation has many facets:Storage provides an example of this evolution. "Our storage at Cisco is used much more intelligently today than it was just a few years ago," Chambers points out. "More and more, we're using a network-based, intelligent storage model in which resources are added to and deleted from the network independent of the applications they support. Instead of allocating storage to particular processor tasks, we just put it up on the network, make it available and the network can intelligently map which resources go with which application resources." This virtualization increased storageutilization by 20 to 30 percent, dramatically increased operational efficiency and led to millions of dollars in annual savings.The Communications Company of the FutureCisco is leading the transition to a network-centric technology environment. By combining its core strength (IP) with intelligence, the company is creating a powerful communications platform that will serve as the basis for the convergence of data, voice, video and mobile communications systems in a secure, integrated architecture. The success that Cisco has achieved in recent years has come from continuously planning three to five years ahead, thereby managing to get ahead of important market transitions. That foresight continues to be the basis of its strategy moving forward. "Historically, the transitions we've been a part of have been technological; they've been relatively orderly and predictable," Chambers notes. "Now, however, we're seeing a wider-reaching, more dramatic transition. So our ability to predict successfully where the market will go is even more critical and offers much greater potential import for the company."Recent moves outline the company's strategy for maintaining its leadership position as the Interactions Net takes shape over the next decade. For example, Cisco has named three new 'Advanced Technology' markets that extend the company's position across the service provider, consumer and business environments. (Advanced Technologies are areas with the potential to create billion-dollar revenue streams; they also expand the Cisco value proposition to customers, as each is integrated into the core of the network.) These recent announcements - Linksys One, the intent to acquire Scientific Atlanta, and Application Services - underscore the company's firm commitment to its long-term architecture strategy."We continue to predict the directions we think the market will take," says Chambers. "These Advanced Technologies are indicative of how we believe the network will become the preferred service platform of the future."Whereas in the past, investment was focused primarily around applications that were built on microprocessor-based platforms (e.g., work stations, servers, desktops, laptops) and the applications they used, C isco believes that future investment will shift to applications that rely more on the network as the platform for their delivery. Real-time interactions are the future of business. As the network becomes a platform and changes the entire IT value chain, companies that take advantage of it will bebetter positioned to facilitate - and successfully manage - those interactions for future growth and increased value.网络就是一个平台网络作为最具成本效益的公司可以整合其增值和成长之间复杂的相互作用当今大部分行政人员（行政总裁）都在关注的成长和培养自己公司的这种成长的能力-此话出自于思科公司的首席执行官约翰钱伯斯。
计算机网络技术中英文对照外文翻译文献
中英文资料外文翻译网站建设技术1.介绍网络技术的发展,为今天全球性的信息交流与资在建立源共享和交往提供了更多的途径和可能。
足不出户便可以知晓天下大事,按几下键盘或点几下鼠标可以与远在千里之外的朋友交流,网上通信、网上浏览、网上交互、网上电子商务已成为现代人们生活的一部分。
Internet 时代, 造就了人们新的工作和生活方式,其互联性、开放性和共享信息的模式,打破了传统信息传播方式的重重壁垒,为人们带来了新的机遇。
随着计算机和信息时代的到来,人类社会前进的脚步在逐渐加快。
近几年网页设计发展,快得人目不暇接。
随着网页设计技术的发展,丰富多彩的网页成为网上一道亮丽的风景线。
要想设计美观实用的网页就应该深入掌握网站建设技术。
在建立网站时,我们分析了网站建立的目的、内容、功能、结构,应用了更多的网页设计技术。
2、网站的定义2.1 如何定义网站确定网站的任务和目标,是建设网站所面临的最重要的问题。
为什么人们会来到你的网站? 你有独特的服务吗? 人们第一次到你的网站是为了什么? 他们还会再来吗? 这些问题都是定义网站时必须考虑的问题。
要定义网站,首先,必须对整个网站有一个清晰认识,弄清到底要设计什么、主要的目的与任务、如何对任务进行组织与规划。
其次,保持网站的高品质。
在众多网站的激烈竞争中,高品质的产品是长期竞争的最大优势。
一个优秀的网站应具备：（1）用户访问网站的速度要快；（2）注意反馈与更新。
及时更新网站内容、及时反馈用户的要求；（3）首页设计要合理。
首页给访问者留下的第一印象很重要,设计务必精美,以求产生良好的视觉效果。
2.2 网站的内容和功能在网站的内容方面,就是要做到新、快、全三面。
网站内容的类型包括静态的、动态的、功能的和事物处理的。
确定网站的内容是根据网站的性质决定的,在设计政府网站、商业网站、科普性网站、公司介绍网站、教学交流网站等的内容和风格时各有不同。
我们建立的网站同这些类型的网站性质均不相同。
【精品】53中英文双语英语翻译专业外文文献翻译成品：在翻译中迷失？译者在国际商务中的文化、语言与角色
外文标题：Lost in translation? Culture, language and the role of the translator in international business外文作者：John Blenkinsopp and Maryam Shademan Pajouh文献出处: 《Critical Perspectives on International Business》 , 2018 , 6 (1) :38-52(如觉得年份太老，可改为近2年，毕竟很多毕业生都这样做)英文3189单词， 17020字符(字符就是印刷符)，中文5098汉字。
此文档是毕业设计外文翻译成品（含英文原文+中文翻译），无需调整复杂的格式！下载之后直接可用，方便快捷！本文价格不贵,也就几十块钱！一辈子也就一次的事！Lost in translation? Culture, language and the role of thetranslatorin international businessJohn Blenkinsopp and Maryam Shademan PajouhTeesside University Business School, UKAbstractPurpose Issues of language in international business have been the focus of a growing body of theoretical and empirical work, and this paper contributes to this literature, focusing specifically on issues of translation. The role of translator will vary depending on the language strategy adopted, with strategies linked to differing perspectives on language in international business – mechanical, cultural and political. We examine these perspectives through the lens of a specific problem for transnational communication –…untranslatable‟ words and concepts. Design/methodology/approach Interviews were conducted withprofessional linguists (translators and interpreters) to explore how they dealt with issues of untranslatable but cultural salient words in their day-to- day work with international businesses, using the problems of translating the Farsi word tarouf into English as a case in point.Findings The linguists agreed that tarouf was an untranslatable word, and described their strategies to deal with this problem. The commoneststrategy was avoidance, stemming from linguists‟ concern to maintain their professional standing with clients, a finding which reflects an emerging emphasis on the importance of context and relationships forunderstanding inter-cultural communication.Practical implications The study highlights the crucial role of the translator in international business, and draws attention to the potential for cross-cultural communication problems arising from mutual lack of awareness of culturally-salient but inherently untranslatable words or phrases.Social implications Effective inter-cultural communication is an issue ofgreat importance to wider society, and business has historically been thecommonest site of such communication. Our study highlights an issue of considerable importance for improving inter-cultural communications, contributing to a growing inter-disciplinary literature in this area.Originality/value Much of the research on language in internationalbusiness has focused on the emergence of English as a lingua franca, but the present study focuses on specific issues of translation and does so in an under-researched location, Iran. It draws attention to a problem of translation not widely discussed, and shows how important this issue can be for international business.Keywords: international business; interpreters; language; tarouf; translators; cross-cultural communicationIntroductionThe multinational corporation (MNC) is, by definition, a multilingual organisation (Fredriksson et al, 2006) and multilingual situations occurwith increasing regularity at various levels of the organisation (Charles and Marschan-Piekkari, 2002). Though issues of communication within MNCs have been a concern within the field of international business for an extended period, the specific issue of language was neglected until relatively recently (Janssens et al, 2004; Welch et al, 2005). A possible explanation is that international business practice has also been somewhat blind to this issue – though the practicalities of language barriers were widely recognised, the full implications of …talking a different language‟ were not. Welch and Welch suggest language is …a mental model, framing activity and behaviour‟ (2008: 341), and these framing effects can be visible even at the level of a single word.An example is offered by Wierzbicka‟s (2001) examination of the Polish word przykro. Usually translated as hurt, offended, sorry or sad, Wierzbicka suggests something is lost in translation, describing przyko as a …culturally salien Polish emotion. …That is not to say that speakers of English never experience the emotion associated in Polish with the word przykro; only that they do not think habitually about their experiences in these terms‟(Wierzbicka, 2001: 22). The Chinese word guanxi offers another obvious example of a word which is both culturally salient and yet inherently …untranslatable‟. Gaunxi has become widely known –discussed and researched to a point where there is a degree of awareness of the concept and its importance in international business.Linguistic imperialismMuch of the literature on the role of language in international business has focused on two particular features. The first is the decisions made by MNCs regarding language use, particularly around choices as to whether to adopt a corporate lingua franca (and if so, which language to adopt)and related issues of translation and interpretation. The second is thestudy of the growth of English as a lingua franca, through linguistic imperialism (Philipson, 1992).Though a complex notion, linguistic imperialism is usefully captured as the process by which speakers of onelanguage come to feel it necessary to use anoth er language, …to the point where they believe they can and should use only that foreign language when it comes to transactions dealing with the more advanced aspects of life‟ (Ansre, 1979, cited in Sliwe, 2008). Ansre is clearly describing a final outcome, and the process of linguistic imperialism is likely to be highly contested. Though the present article is focused on issues of translation in international business, the rise of English as a lingua franca through linguistic imperialism forms an important backdrop our study, and we will briefly explore this literature.Language barriers in international businessThese issues of translation can obviously be viewed as a language barrier for international business, but Harzing and Feely (2008) argue that the idea of …language barriers‟ has been rather under-defined. They propose a model of communication in which different components contribute to a vicious circle which creates the language barrier – failure to communicate effectively leads to uncertainty, anxiety and mistrust, which produces misattribution, conflict and cognitive distortion, to which the various parties respond by engaging in greater formality in communication, which is less effective...and the circle is completed. Their model focuses on the HQ- subsidiary relationship in MNCs, but the idea that communication problems arising from language differences might produce a vicious circle seems relevant to a range of settings within international business. Jameson argues that language …defines cultura l groups, as well as being the most frequently used symbolic systems through which culture is conveyed‟ (2007: 214), and as such it is core to cross-cultural communication in all settings. One of the key issues which led us to examine the issue of …untranslatable‟ words is that they are likely to lead to situations in which the failure to communicate effectively is either not recognised, or is recognised but baffling to the parties involved. Translation StudiesIn this section we want to examine some of the key ideas in the field of translation studies which might shed light on the present study, though it is useful to recall Nida‟s point that many translators will not draw upon theory in any conscious fashion:Instead of speaking of theories of translation, we should perhapsspeak more about various approaches to the task of translating, different orientations which provide helpful insight, and diverse ways of talking about how a message can be transferred from onelanguage to another.(Nida, 1991: 21).We can see that the translator has a key role to play in this process, but Pym (2006) notes that until recently the field of translation studies has paid relatively little attention to their role as mediators. It should be noted that although we have used translator as a generic term, it is more preciseto use this to refer to those who translate the written word. Translators of the spoken word are more commonly referred to as interpreters, and Pym(2006) suggests that the importance of the mediating role is more obviousand immediate for interpreters. Consistent with this, our findings suggest that the issue of untranslatable words presents more of a problem for interpreters thantranslators.An overview of TaroufTarouf (…tar-off’) is a Farsi word which describes a complex cultural construct. Three different English-Farsi dictionaries offer the following translations:- salutation, compliment, comity, chivalry- compliment, ceremony, offer, present- compliment(s), ceremony, offer, gift, flummery, courtesy, flattery,formality, good manners, soft tongue, honeyed phrases.Many of these words have only limited relation to each other, and this is because they can be seen as facets of tarouf, and the kinds of behaviours associated with it. Two examples illustrate tarouf more effectively than these definitions. The first is an Iranian joke:Many years ago, a young Persian woman became pregnant. Themonths passed and she kept getting bigger, finally nine months came but no baby came out. She kept getting bigger and b igger…but still no baby! Years went by until she became an old woman with a huge belly. Finally the doctors had a machine that could look into her belly and see what was going on in there. They looked inside and saw two men with beards saying to each other, ‘after you’, ‘no, after you’, ‘no please, after you’.A second example was told to us by an Iranian about his cousin, born inthe UK of Iranian parents, who made his first visit to Iran in his early 20s.He took a taxi back to the airport, and he and the driver chatted for the whole of the journey. When he got to the airport he asked the driver to tell him the fare, but the driver said there was no charge, it had been a pleasure to talk with him. My cousin didn’t know about tarouf, so he took this at fac e value, thanked him profusely and left!The driver, despite no doubt being aghast at this turn of events, let him go.This illustrates that tarouf is deeply culturally embedded –the driver could ill afford to offer a free fare for such a long journey, yet faced with a customer who did not recognise the conventions of tarouf he felt unable to step outside of them and demand the fare.MethodIn order to explore the idea of tarouf as an …untranslatable‟ word, we interviewed translators working in English and Farsi. We were unable to secure access to translators through agencies, who appeared concerned our approach was a ruse to gain access to translators without paying an agency fee. We therefore adopted a snowball sampling approach, going directly to individual translators based in Iran, and asking them torecommend other potential participants for us to contact. Clearly the study was premised on our claim that tarouf is untranslatable, so we initially asked all participants whether they agreed with that assertion. All confirmed that it was so, and we proceeded to explore the three empirical questions listed above via in-depth telephone interviews with 31individuals – 16 translators (5 men, 11 women) and 14 interpreters (12men, 2 women). Six of the interpreters were interviewed twice, and were also sentfollow-up e-mails seeking clarification of key points. It was not possible to record the interviews so we were unable to produce transcripts, however detailed notes were taken. The opportunity for follow-up interviews and e-mails provided a further rigour to the data gathering process. The question of the implications for international business communication was something upon which they could provide some insight, but we decided to compare their views to those of practising managers so after completing the interviews with the translators, we undertook telephone interviews with five managers (three Iranian, two British) working for MNCs in Iran. The data analysis approached adopted was somewhat simplistic, in t hat we treated the participants‟ response as reporting fact, rather than as texts for analysis.FindingsHow do you deal with the word tarouf in your work?Though the concept of tarouf permeates all Iranian writing and speech, the word itself will occur relatively infrequently in the kinds of business documents which translators handle. They were initially rather defensive when we asked them about the difficulties in translating tarouf. Once they understood we were not criticising their practice, but interested in how they dealt with the problem, they explained that where possible they would seek a word which captured as far as possible the particular element of tarouf which was relevant in that passage. (Note: if the translated passages were then subjected to back translation, often seen as the acid test of good translation, the second translator would almost certainly not translate any of these words as …tarouf‟). The challenge of translation posed by tarouf was not confined to the word itself. There are what might be called …tarouf phrases‟, expressions of politeness which serve a …phatic function‟ (Tietze, 2007), that is, a function in maintaining social relationships.DiscussionThe first is that translators have a clear view on how to handle the issue of untranslatable words. They generally choose either to find the closest approximation in the target language, or to ignore the word altogether. Only when neither option seems possible do they choose to raise the issue of the untranslatable nature of a word or phrase, and on such occasions they will provide an explanation of the cultural context in order to help the audience understand what the author/speaker is attempting to convey. The fact they engage in such explanations only when deemed unavoidableappears to arise from a concern about the impact of this on theirprofessional image.ConclusionThis study highlights the significance of …untranslatable‟ words in multi- cultural communications, and the crucial mediating role of the translator/interpreter in international business communication. Our participants‟description of their practice reflected elements of all three perspectives on language use – mechanical, cultural and political –described by Janssens et al (2004). Their core practice remained wedded to the mechanical perspective, as they attempted to render documents or speech between Farsi and English as accurately as possible. The…untranslatable‟ nature of tarouf tested this preferred way of working to its limits, but only in certain circumstances did they choose to provide their clients with the cultural perspective required to understand fully the nature of their business interactions. Their choices demonstrate the significant power dimension of their role, consistent with the political perspective, butwhereas Janssens et al (2004) highlight organisational power dynamics, in this instance it is the professional status and personal business concerns of the translator/interpreter which dominate. Their judgement as to whether or not to offer an explanation of tarouf is based upon their view of whether this will enhance or diminish their standing in the eyes of their clients (and by extension, whether or not this will lead to repeat business). This suggests a need for greater attention to the role of the translator, and in particular greater clarity from clients as to what they require. The irony of course is that when dealing with …untranslatable‟ words and conceptsthe clients do not know what they are missing, and are therefore unlikelyto see the need to specify their requirements.ReferencesBarner-Rasmussen, W, and Bjorkman, I. (2005), “Surmounting interunit barriers”, International Studies of Management and Organisation, Vol. 35 No.1, pp. 28-46. Bjerregaard, T, Lauring, J, and Klitmoll er, A. (2009). “A critical analysis of intercultural communication research in cross-cultural management: Introducing newer developments in anthropology”, Critical Perspectives on International Business , Vol. 5 No. 3, pp. 207-228.Charles, M. (2007), “Language matters in global communication”, Journal of Business Communication, Vol.44 No. 3, pp. 260-282.Charles, M, and Marschan-Piekkari, R. (2002), “Language training for enhanced horizontal communication: A challenge for MNCs”, Business Communication Quarterly, Vol. 65 No. 2, pp. 9-29.Dowling, P.J. and Welch, D.E. (2004), International Human Resource Management: Managing People in a Multinational Environment (4th Ed), London, Thomson Learning.Feely, A, J. and Harzing, A, W. (2003), “Language management i n multinational companies”, Journal of Cross Cultural Management, Vol. 10 No. 2, pp. 37-52.Fredriksson, R, Barner-Rasmussen, W. and Piekkari, R. (2006), “The multinational corporation as a multilingual organization: The notion of a common corporate langua ge”, Corporate Communications: An International Journal, Vol.11 No. 4, pp. 406-423.Harzing, A.W.K., and Feely, A.J. (2008), “The Language Barrier and its Implications for HQ-Subsidiary Relationships”, Cross Cultural Management: An International Journal, Vol. 15 No. 1, pp. 49-60. Jameson, D.A. (2007), “Reconceptualizing cultural identity and its role in intercultural business communication”, Journal of Business Communication, Vol. 44 No. 3, pp. 199-235.Janssens, M., Lambert, J., and Steyaert, C. (2004), “Developing languagestrategies for international companies: the contribution of translation studies”, Journal of World Business, Vol. 39 No. 4, pp. 414-430. Khomenei, A, R (1980), “Search and Find the East”, In Albert, H (ed). Tell the American People: Perspectives on the Iranian Revolution, Movement for a New Society, Philadelphia, pp. 204-210.Latifi, F. (1997), “Management Learning in National Context”, PhD thesis, Henley Management College.Lazarova, M., and Tarique, I. (2005), “Knowledge transfer upon repatriation”, Journal of World Business, Vol. 40 No. 4, pp. 361-373.Nida, E.A. (1991), “Theories of translation”, TTR: traduction, terminologie,rédaction, Vol. 4 No. 1, pp. 19-32.Phillipson, R. (1992), Linguistic Imperialism, Oxford, Oxford University Press. Pochhacker, F. (2006), “Interpreters and ideology: from …between‟ to…within‟”, Across Languages and Cultures, Vol. 7 No. 2, pp.191–207.Pym, A. (2006), “On the social and the cultural in Translation Studies”, in Pym, A., Shlesinger, M. and Jettmarová, Z. (Eds.), Sociocultural Aspects of Translating and Interpreting, Amsterdam and Philadelphia, Benjamins. Pym, A. (2008), “On Toury's laws of how translators translate”, in Pym, A.D., Shlesinger, M., and Simeoni, D. (Eds.), Beyond DescriptiveTranslation Studies: Investigations in Homage to Gideon Toury, Amsterdam and Philadelphia, Benjamins.Sliwa, M. (2008), “Understanding social change through post-colonialtheory: Reflections on linguistic imperialism and language spread in Poland”, Critical Perspective on International Business, Vol.4 No. 2/3, pp. 228-241. Tayeb, M. (2001), “Human Resource in Iran”, in Budwar, P.S. and Yaw, D. (Eds.) Human Resource Management in Developing Countries, London: Routledge, pp.121-134.Tietze, S. (2008), International Management and Language, London, Routledge.Tietze, S. (2007), “Language and international management emergent themes and new perspectives”, Bradford University School of Management Working Paper, No. 07/35.Tollefson, J.W. (1991), Planning Language, Planning Inequality, Language Policy in the Community, New York, Longman.Toury, G. (1995), Descriptive Translation Studies and beyond, Amsterdam and Philadelphia, Benjamins.Welch, D.E, and Welch, L.S. (2008), “The importance of language in international knowled ge transfer”, Management International Review, Vol.48 No. 3, pp. 339-360.Welch, D, Welch. L, and Piekkari, R. (2005), “Speaking in tongues: The impact of language in international management processes”, International Studies of Management and Organization, Vol. 35 No. 1, pp. 10-27. Wierzbicka, A. (2001), “A Culturally Salient Polish Emotion: Przykro ['Pshickro]”, International Journal of Group Tensions, Vol. 30 , pp. 3-27.在翻译中迷失？译者在国际商务中的文化、语言与角色约翰．布莱金索普和玛雅姆．塞得门．帕乔英国梯塞德大学商学院摘要目标：国际商务中有关的语言问题一直是越来越多的理论和实证性工作的焦点，本文促成了这些文献并专注于翻译问题。
《网络用语的英译研究国内外文献综述》
网络用语的英译研究国内外文献综述国外对网络用语的研究起步早于国内。
互联网发源地美国，是学者们最早研究互联网语言和网络用语的地方。
在西方国家，互联网经常被用于电子商务，而在中国则被用作娱乐和表达的平台。
所以国外对网络用语的研究很少。
英国翻译理论家纽马克在其著作《翻译教科书》第13章中讨论了新词的翻译:Neologisms are perhaps the non-literary and the professional translator’s biggest problem.新词可能是非文学和专业翻译的最大问题（Newmark，2001）。
He also delivered that a majority of them have a single meaning and can therefore be translated out of context, but many of them soon acquire new (and some times lose the old) meanings in the TL.他还表示，它们中的大多数具有单一含义，因此可以脱离上下文进行翻译，但其中许多很快在TL 中获得了新的（有时失去了旧的）含义（Newmark，2001）。
纽马克也给出了新词的定义。
他将新词定义为新创造的词汇单元或获得新意义的现有词汇单元（Newmark，2001）。
他将新词分为两类和十二类。
A型是具有新意义的现有词汇项目。
它包括单词和搭配。
B型是指新形式。
它包括新造词、派生词（包括混合词）、缩写词、搭配词、人名词、短语词、转移词（包括新旧指称）、伪新词和国际主义（Newmark，2001）。
对于每一种新词，纽马克都提出了一种翻译方法。
这些方法与本文的翻译方法相似。
然而，纽马克理论中的新词属于印欧语系。
①In 2006,David Crystal, a very famous linguist, published his new work Language and Internet, which studied on the influence of Internet towards the general language and specific language. 2006年，著名的语言学家大卫·克里斯托（David Crystal）发表了他的新作《语言与互联网》，研究了互联网对一般语言和特定语言的影响。
汽车电子系统中英文对照外文翻译文献
汽车电子系统中英文对照外文翻译文献汽车电子系统中英文对照外文翻译文献1汽车电子系统中英文对照外文翻译文献(文档含英文原文和中文翻译)The Changing Automotive Environment: High-Temperature ElectronicsR. Wayne Johnson, Fellow, IEEE, John L. Evans, Peter Jacobsen, James R. (Rick) Thompson, and Mark ChristopherAbstract —The underhood automotive environment is harsh and current trends in the automotive electronics industry will be pushing the temperatureenvelope for electronic components. The desire to place engine control unitson the engine and transmission control units either on or in the transmissionwill push the ambient temperature above 125125℃℃.However, extreme cost pressures,increasing reliability demands (10 year/241 350 km) and the cost of field failures (recalls, liability, customer loyalty) will make the shift to higher temperatures occur incrementally. The coolest spots on engine and in the transmission will be used. These large bodies do provide considerableheat sinking to reduce temperature rise due to power dissipation in the controlunit. The majority of near term applications will be at 150 ℃ or less andthese will be worst case temperatures, not nominal. The transition toX-by-wire technology, replacing mechanical and hydraulic systems with electromechanical systems will require more power electronics. Integrationof power transistors and smart power devices into the electromechanical℃ to 200℃ . Hybridactuator will require power devices to operate at 175electric vehicles and fuel cell vehicles will also drive the demand for higher temperature power electronics. In the case of hybrid electric and fuel cell vehicles, the high temperature will be due to power dissipation. Thealternates to high-temperature devices are thermal management systems which add weight and cost. Finally, the number of sensors in vehicles is increasingas more electrically controlled systems are added. Many of these sensors mustwork in high-temperature environments. The harshest applications are exhaustgas sensors and cylinder pressure or combustion sensors. High-temperature electronics use in automotive systems will continue to grow, but it will be gradual as cost and reliability issues are addressed. This paper examines themotivation for higher temperature operation,the packaging limitations evenat 125 C with newer package styles and concludes with a review of challenge at both the semiconductor device and packaging level as temperatures push beyond 125 ℃.Index Terms—Automotive, extreme-environment electronics.I. INTRODUCTIONI N 1977, the average automobile contained $110 worth of electronics [1]. By 2003 the electronics content was $1510 per vehicle and is expected to reach$2285 in 2013 [2].The turning point in automotive electronics was governmentTABLE IMAJOR AUTOMOTIVE ELECTRONIC SYSTEMSTABLE IIAUTOMOTIVETEMPERATUREEXTREMES(DELPHIDELCOELECTRONIC SYSTEMS) [3]regulation in the 1970s mandating emissions control and fuel economy. The complex fuel control required could not be accomplished using traditional mechanical systems. These government regulations coupled with increasing semiconductor computing power at decreasing cost have led to an ever increasing array of automotive electronics. Automotive electronics can be divided into five major categories as shown in Table I.The operating temperature of the electronics is a function of location, power dissipation by the electronics, and the thermal design. The automotive electronics industry defines high-temperature electronics as electronics operating above 125 ℃. However, the actual temperature for various electronics mounting locations varies considerably. Delphi Delco Electronic Systems recently published the typical continuous maximum temperatures as reproduced in Table II [3]. The corresponding underhood temperatures are shown in Fig. 1. The authors note that typical junction temperatures for integrated circuits are 10 ℃to15℃ higher than ambient or baseplate temperature, while power devices can reach 25 ℃ higher. At-engine temperatures of 125℃ peak can be maintained by placing the electronics on theintake manifold.Fig. 1. Engine compartment thermal profile (Delphi Delco Electronic Systems) [3].TABLE III THEAUTOMOTIVEENVIRONMENT(GENERALMOTORS ANDDELPHIDELCO ELECTRONICSYSTEMS) [4]TABLE IV REQUIREDOPERATIONTEMPERATURE FORAUTOMOTIVEELECTRONIC SYSTEMS(TOYOTAMOTORCORP. [5]TABLE VMECHA TRONICMAXIMUMTEMPERA TURERANGES(DAIMLERCHRYSLER,EA TONCORPORA TION, ANDAUBURNUNIVERSITY) [6]Fig. 2. Automotive temperatures and related systems (DaimlerChrysler) [8].automotive electronic systems [8]. Fig. 3 shows an actual measured transmission transmission temperature temperature temperature profile profile profile during during during normal normal normal and and excessive excessive driving drivingconditions [8]. Power braking is a commonly used test condition where the brakes are applied and the engine is revved with the transmission in gear.A similar real-world situation would be applying throttle with the emergencybrake applied. Note that when the temperature reached 135135℃℃,the over temperature light came on and at the peak temperature of 145145℃℃,the transmission was beginning to smell of burnt transmission fluid.TABLE VI2002I NTERNA TIONAL T ECHNOLOGY R OADMAPFOR S EMICONDUCTORS A MBI ENTOPERA TINGTEMPERA TURES FORHARSHENVIRONMENTS (AUTOMOTIVE) [9]The 2002 update to the International Technology Roadmap for Semiconductors (ITRS) did not reflect the need for higher operating temperatures for complex integrated circuits, but did recognize increasing temperature requirements for power and linear devices as shown in Table VI [9]. Higher temperature power devices (diodes and transistors) will be used for the power section of power converters and motor drives for electromechanical actuators. Higher temperature linear devices will be used for analog control of power converters and for amplification and some signal processing of sensor outputs prior to transmission to the control units. It should be noted that at the maximum rated temperature for a power device, the power handling capability is derated to zero. Thus, a 200℃ rated power transistor in a 200℃ environment would have zero current carrying capability. Thus, the actual operating environments must be lower than the maximum rating.In the 2003 edition of the ITRS, the maximum junction temperatures identified forharsh-environment complex integrated circuits was raised to 150℃through 2018 [9]. Theambient operating temperature extreme for harsh-environment complex integrated circuits was defined as 40℃to 125℃ through 2009, increasing to 40℃to 150℃for 2010 and beyond. Power/linear devices were not separately listed in 2003.The ITRS is consistent with the current automotive high-temperature limitations. Delphi Delco Electronic Systems offers two production engine controllers (one on ceramic and one on thin laminate) for direct mounting on the engine. These controllers are rated for operation over the temperature range of 40℃to 125℃. The ECU must be mounted on the coolest spot on the engine. The packaging technology is consistent with 140℃ operation, but the ECU is limited by semiconductor and capacitor technologies to 125℃.The future projections in the ITRS are not consistent with the desire to place controllers on-engine or in-transmission. It will not always be possible to use the coolest location for mounting control units. Delphi Delco Electronics Systems has developed an in-transmission controller for use in an ambient temperature of 140℃[10] using ceramic substrate technology. DaimlerChrysler is also designing an in-transmission controller for usewith a maximum ambient temperature of 150℃ (Figs. 4 and 5) [11].II. MECHATRONICSMechatronics, or the integration of electrical and mechanical systems offers a number ofadvantages in automotive assembly. Integration of the engine controller with the engine allows pretest of the engine as a complete system prior to vehicle assembly. Likewise with the integration of the transmission controller and the transmission, pretesting and tuning to account for machining variations can be performed at the transmission factory prior to shipment to the automobile assembly site. In addition, most of the wires connecting to a transmission controller run to the solenoid pack inside the transmission. Integration of the controller into the transmission reduces the wiring harness requirements at the automobile assembly level.Fig. 4. Prototype DaimlerChrysler ceramic transmission controller [11]Fig. 5. DaimlerChrysler in-transmission module [11].The trend in automotive design is to distribute control with network communications. As the industry moves to more X-by-wire systems, this trend will continue. Automotivefinalassembly plants assemble subsystems and components supplied by numerous vendors to build the vehicle. Complete mechatronic subsystems simplify the design, integration, management, inventory control, and assembly of vehicles. As discussed in the previous section, higher temperature electronics will be required to meet future mechatronic designs.III. PACKAGINGCHALLENGES AT125℃Trends in electronics packaging, driven by computer and portable products are resulting in packages which will not meet underhood automotive requirements at 125℃. Most notable are leadless and area array packages such as small ball grid arrays (BGAs) and quadflatpacks no-lead (QFNs). Fig. 6 shows the thermal cycle test 40 ℃to 125℃ results for two sizes of QFN from two suppliers [12]. A typical requirement is for the product to survive 2000–2500 thermal cycles with<1% failure for underhood applications. Smaller I/O QFNs have been found to meet the requirements.Fig. 7 presents the thermal cycle results for BGAs of various body sizes [13]. The die size in the BGA remained constant (8.6 *8.6 mm). As the body size decreases so does the reliability. Only the 23-mm BGA meets the requirements. The 15-mm BGA with the 0.56-mm-thick BT substrate nearly meets the minimum requirements. However, the industry trend is to use thinner BT substrates (0.38 mm) for BGA packages.One solution to increasing the thermal cycle performance of smaller BGAs is to use underfill. Capillary underfill was dispensed and cured after reflow assembly of the BGA. Fig. 8 shows a Weibull plot of the thermal cycle data for the 15-mm BGAs with four different underfills. Underfill UF1 had no failures after 5500 cycles and is, therefore, not plotted. Underfill, therefore, provides a viable approach to meeting underhood automotive requirements with smaller BGAs, but adds process steps, time, and cost to the electronics assembly process.Since portable and computer products dominate the electronics market, the packages developed for these applications are replacing traditional packages such as QFPs for new devices. The automotive electronics industry will have to continuedeveloping assembly approaches such as underfill just to use these new packages in current underhood applications.IV. TECHNOLOGY CHALLENGES ABOVE125 ℃The technical challenges for high-temperature automotive applications are interrelated, but can be divided into semiconductors, passives, substrates,interconnections, and housings/connectors. Industries such as oil well logging have successfully fielded high-temperature electronics operating at 200℃ and above. However, automotive electronics are further constrained by high-volume production, low cost, and long-term reliability requirements. The typical operating life for oil well logging electronics may only be 1000 h, production volumes are in the range of 10s or 100s and, while cost is a concern, it is not a dominant issue. In the following paragraphs, the technical challenges for high-temperature automotive electronics are discussed.Semiconductors: The maximum rated ambient temperature for most silicon basedintegrated circuits is 85℃, which is sufficient for consumer, portable, and computing product applications. Devices for military and automotive applications are typically rated to 125℃. A few integrated circuits are rated to 150℃, particularly for power supply controllers and a few automotive applications. Finally, many power semiconductor devices are derated to zero power handling capability at 200℃.Nelmset al.and Johnsonet al.have shown that power insulated-gate bipolar transistors (IGBTs) and metal–oxide–semiconductorfield-effect transistors (MOSFETs) can be used at 200℃[14], [15]. The primary limitations of these power transistors at the higher temperatures are the packaging (the glass transition temperature of common molding compounds is in the 180℃ to 200℃range) and the electrical stress on the transistor during hard switching.A number of factors limit the use of silicon at high temperatures. First, with a bandgap of 1.12 eV, the silicon p-n junction becomes intrinsic at high temperature (225℃ to 400℃depending on doping levels). The intrinsic carrier concentration is given by (1)As the temperature increases, the intrinsic carrier concentration increases. When the intrinsic carrier concentration nears the doping concentration level, p-n junctions behave as resistors, not diodes, and transistors lose their switching characteristics. One approach used in high-temperature integrated circuit design is to increase the doping levels, which increases the temperature at which the device becomes intrinsic. However, increasing the doping levels decreases the depletion widths, resulting in higher electricfields within the device that can lead to breakdown.A second problem is the increase in leakage current through a reverse-biased p-n junction with increasing temperature. Reverse-biased p-n junctions are commonly used in IC design to provide isolation between devices. The saturation current (I,the ideal reverse-bias current of the junction) is proportional to the square of the intrinsic carrier concentrationwhere Ego=bandgap energy atT= 0KThe leakage current approximately doubles for each 10℃rise in junction temperature. Increased junction leakage currents increase power dissipation within the device and can lead to latch-up of the parasitic p-n-p-n structure in complimentary metal–oxide–semiconductor (CMOS) devices. Epitaxial-CMOS (epi-CMOS) has been developed to improve latch-up resistance as the device dimensions are decreased due to scaling and provides improved high-temperature performance compared to bulk CMOS.Silicon-on-insulator (SOI) technology replaces reverse-biased p-n junctions with insulators, typically SiO2 , reducing the leakage currents and extending the operating range of silicon above 200℃. At present, SOI devices are more expensive than conventional p-njunction isolated devices. This is in part due to the limited use of SOI technology. With the continued scaling of device dimensions, SOI is being used in some high-performance applications and the increasing volume may help to eventually lower the cost.Other device performance issues at higher temperatures include gate threshold voltage shifts, decreased noise margin, decreased switching speed, decreased mobility, decreased gain-bandwidth product, and increased amplifier input–offset voltage [16]. Leakage currents also increase for insulators with increasing temperature. This results in increased gate leakage currents, and increased leakage of charge stored in memory cells (data loss). For dynamic memory, the increased leakage currents require faster refresh rates. For nonvolatile memory, the leakage limits the life of the stored data, a particular issue for FLASH memory used in microcontrollers and automotive electronics modules.Beyond the electrical performance of the device, the device reliability must also be considered. Electromigration of the aluminum metallization is a major concern. Electromigration is the movement of the metal atoms due to their bombardment by electrons (current flow). Electromigration results in the formation of hillocks and voids in the conductor traces. The mean time to failure (MTTF) for electromigration is related to the current density (J)and temperature(T) as shown in (3)The exact rate of electromigration and resulting time to failure is a function of the aluminum microstructure. Addition of copper to the aluminum increases electromigration resistance. The trend in the industry to replace aluminum with copper will improve the electromigration resistance by up to three orders of magnitude [17].Time dependent dielectric breakdown (TDDB) is a second reliability concern. Time to failure due to TDDB decreases with increasing temperature. Oxide defects, including pinholes, asperities at the Si–SiO2 interface and localized changes in chemical structure that reduce the barrier height or increase the charge trapping are common sources of early failure [18]. Breakdown can also occur due to hole trapping (Fowler–Nordheim tunneling). The holes can collect at weak spots in the Si–SiO2 interface, increasing the electricfield locally and leading to breakdown [18]. The temperature dependence of time-to-breakdown(tBD) can be expressed as [18]Values reported for Etbd vary in the literature due to its dependence on the oxidefield and the oxide quality. Furthermore, the activation energy increases with breakdown time [18].With proper high-temperature design, junction isolated silicon integrated circuits can be used to junction temperatures of 150℃ to 165℃, epi-CMOS can extend the range to 225℃to 250℃ and SOI can be used to 250℃ to 280℃ [16, pp. 224]. High-temperature, nonvolatile memory remains an issue.For temperatures beyond the limits of silicon, silicon carbidebased semiconductors are being developed. The bandgap of SiC ranges from 2.75–3.1 depending on the polytype. SiC has lower leakage currents and higher electric field strength than Si. Due to its wider bandgap, SiC can be used as a semiconductor device at temperatures over 600℃. Theprimary focus of SiC device research is currently for power devices. SiC power devices may eventuallyfind application as power devices in braking systems and direct fuel injection. High-temperature sensors have also been fabricated with SiC. Berget al.have demonstrated a SiCbased sensor for cylinder pressure in combustion engines [19] at up to 350℃ and Casadyet al.[20] have shown a SiC-based temperature sensor for use to 500℃. At present, the wafer size, cost, and device yield have made SiC devices too expensive for general automotive use. Most SiC devices are discrete, as the level of integration achieved in SiC to date is low.Passives: Thick and thin-film chip resistors are typically rated to 125 ℃. Naefeet al.[21] and Salmonet al.[22] have shown that thick-film resistors can be used at temperatures above 200℃ if the allowable absolute tolerance is 5% or greater. The resistors studied were specifically formulated with a higher softening point glass. The minimum resistance as afunction of temperature was shifted from 25℃to 150℃to minimize the temperature coefficient of resistance (TCR) over the temperature range to 300℃. TaN and NiCr thin-film resistors have been shown to have less than 1% drift after 1000 h at 200℃ [23]. Thus, for tighter tolerance applications, thin-film chip resistors are preferred. Wire wound resistors provide a high-temperature option for higher power dissipation levels [21].High-temperature capacitors present more of a challenge. For low-value capacitors, negative-positive-zero (NPO) ceramic and MOS capacitors provide low-temperature coefficient of capacitance (TCC) to 200℃. NPO ceramic capacitorshave been demonstrated to 500℃ [24]. Higher dielectric constant ceramics (X7R, X8R, X9U), used to achieve the high volumetric efficiency necessary for larger capacitor values, exhibit a significant capacitance decrease above the Curie temperature, which is typically between 125℃ to 150℃. As the temperature increases, the leakage current increases, the dissipation factor increases, and the breakdown strength decreases. Increasing the dielectric tape thickness to increase breakdown strength reduces the capacitance and is a tradeoff. X7R ceramic capacitors have been shown to be stable when stored at 200℃ [23]. X9U chip capacitors are commercially available for use to 200 C, but there is a significant decrease in capacitance above 150℃.Consideration must also be given to the capacitor electrodes and terminations. Ni is now being substituted for Ag and PdAg to lower capacitor cost. The impact of this change on hightemperature reliability must be evaluated. The surface finish for ceramic capacitor terminations is typically Sn. The melting point of the Sn (232℃) and its interaction with potential solders/brazes must also be considered. Alternate surfacefinishes may be required.For higher value, low-voltage requirements, wet tantalum capacitors show reasonable behavior at 200℃ if the hermetic seal does not lose integrity [23]. Aluminum electrolytics are also available for use to 150℃. Mica paper (260℃) and Teflonfilm (200℃) capacitors can provide higher voltage capability, but are large and bulky [25]. High-temperature capacitors are relatively expensive. V capacitors are relatively expensive. Volumetrically efficient, high-voltage, highcapacitance, olumetrically efficient, high-voltage, highcapacitance, high-temperature and low-cost capacitors are still needed.Standard transformers and inductor cores with copper wire and teflon insulation are suitable for operation to 200℃. For higher temperature operation, the magnetic core, the conductor metal (Ni instead of Cu) and insulator must be selected to be compatible with the higher temperatures [16, pp. 651–652] Specially designed transformers can be used to 450℃ to 500℃, however, they are limited in operating frequency.Crystals are required for clock frequency generation for microcontrollers. Crystals with acceptable frequency shift over the temperature range from 55℃to 200℃ have been demonstrated [22]. However, the selection of packaging materials and assembly process for the crystal are key to high-temperature performance and reliability. For example, epoxies used in assembly must be compatible with 200℃ operation.Substrates: Thick-film substrates with gold metallization have been used in circuits to 500℃ [21], [23]. Palladium silver, platinum silver, and silver conductors are morecommonly used in automotive hybrids for reduced cost. Silver migration has been observed with an unpassivated PdAg thick-film conductor under bias at 300℃ [21]. The time-to-failure needs to be examined as a function of temperature and bias voltage with and without passivation. Low-temperature cofired ceramic (LTCC) and high-temperature cofired ceramic (HTCC) are also suitable for high-temperature automotive applications. Embedded resistors are standard to thick-film hybrids, LTCC, and some HTCC technologies. As previously mentioned, thick-film resistors have been demonstrated at temperatures 200℃. Dielectric tapes for embedded capacitors have also been developed for LTCC and HTCC. However, these embedded capacitors have not been characterized for high-temperature use.High-Tg laminates are also available for fabrication of hightemperature printed wiring boards. Cyanate esters [Tg=250℃by differential scanning calorimetry (DSC)], polyimide (260℃by DSC), and liquid crystal polymers(Tm>280℃）provide options for use to 200℃. Cyanate ester boards have been used successfully in test vehicles at 175℃, but failed when exposed to 250℃ [26]. The higher coefficient of thermal expansion (CTE) of the laminate substrates compared to the ceramics must be considered in the selection of component attachment materials. The temperature limits of the laminates with respect to assembly temperatures must also be carefully considered. Work is ongoing to develop and implement embedded resistor and capacitor technology for laminate substrates for conventional temperature ranges. This technology has not been extended to high-temperature applications.One method many manufacturers are using to address the higher temperatures whilemaintaining lower cost is the use of laminate substrates attached to metal. The typical design involves the use of higher Tg( +140℃ and above) laminate substrates attached to an aluminum plate (approximately 2.54-mm thick) using a sheet or liquid adhesive. To assist in thermal performance, the laminate substrate is often thinner (0.76 mm) than traditional automotive substrates for under-the-hood applications. While this design provides improved thermal performance, the attachment of the laminate to aluminum increases the CTE for the overall substrates. The resultant CTE is very dependent on the ability of the attachment material to decouple the CTE between the laminate substrate and the metal backing. However, regardless of the attachment material used, the combination of the laminate and metal will increase the CTE of the overall substrate above that of a stand-alone laminate substrate. This impact can be quite significant in the reliability performance for components with low CTE values (such as ceramic chip resistors). Fig. 9 illustrates the impact of two laminate-to-metal attachment options compared to standard laminate substrates [27], [28]. The reliability data presented is for 2512 ceramic chip resistors attached to a 0.79-mm-thick laminate substrate attached to aluminum using two attachment materials. Notice that while one material significantly outperforms the other, both are less reliable than the same chip resistor attached to laminate without metal backing.This decrease in reliability is also exhibited on small ball grid array (BGA) packages. Fig. 10 shows the reliability of a 15-mm BGA package attached to laminate compared to the same package attached to a laminate substrate with metal backing [27], [28]. The attachment material used for the metal-backed substrate was the best material selected from previous testing. Notice again that the metal-backed substrate deteriorates the reliability. This reliability deterioration is of particular concern since many IC packages used for automotive applications are ball grid array packages and the packaging trend is for reduced packaging size. These packaging trends make the use of metal-backed substrates difficult for next generation products.One potential solution to the above reliability concern is the use of encapsulants and underfills. Fig. 11 illustrates how conformal coating can improve component reliability for surface mount chip resistors [27], [28]. Notice that the reliability varies greatly depending on material composition. However, for components which meet a marginal level of reliability, conformal coatings may assist the design in meeting the target reliability requirements. The same scenario can be found for BGA underfills. Typical underfill materials may extend the component life by a factor of two or more. For marginal IC packages, this enhancement may provide enough reliability improvement toall the designs to meet under-the-hood requirements. Unfortunately, the improvements provided byencapsulants and underfills increase the material cost and adds one or more manufacturing processes for material dispense and cure.Interconnections: Methods of mechanical and electrical interconnection of the active and passive components to the board include chip and wire,flip-chip, and soldering of packaged parts. In chip and wire assembly, epoxy die-attach materials can beused to 165℃ [29]. Polyimide and silicone die-attach materials can be used to 200℃. For higher temperatures, SnPb ( >90Pb), AuGe, AuSi, AuSn, and AuIn have been used. However,with the exception of SnPb, these are hard brazes and with increasing die size, CTE mismatches between the die and the substrate will lead to cracking with thermal。
5G无线通信网络中英文对照外文翻译文献
5G无线通信网络中英文对照外文翻译文献(文档含英文原文和中文翻译)翻译：5G无线通信网络的蜂窝结构和关键技术摘要第四代无线通信系统已经或者即将在许多国家部署。
然而，随着无线移动设备和服务的激增，仍然有一些挑战尤其是4G所不能容纳的，例如像频谱危机和高能量消耗。
无线系统设计师们面临着满足新型无线应用对高数据速率和机动性要求的持续性增长的需求，因此他们已经开始研究被期望于2020年后就能部署的第五代无线系统。
在这篇文章里面，我们提出一个有内门和外门情景之分的潜在的蜂窝结构，并且讨论了多种可行性关于5G无线通信系统的技术，比如大量的MIMO技术，节能通信，认知的广播网络和可见光通信。
面临潜在技术的未知挑战也被讨论了。
介绍信息通信技术（ICT）创新合理的使用对世界经济的提高变得越来越重要。
无线通信网络在全球ICT战略中也许是最挑剔的元素，并且支撑着很多其他的行业，它是世界上成长最快最有活力的行业之一。
欧洲移动天文台（EMO）报道2010年移动通信业总计税收1740亿欧元,从而超过了航空航天业和制药业。
无线技术的发展大大提高了人们在商业运作和社交功能方面通信和生活的能力无线移动通信的显著成就表现在技术创新的快速步伐。
从1991年二代移动通信系统(2G)的初次登场到2001年三代系统（3G）的首次起飞，无线移动网络已经实现了从一个纯粹的技术系统到一个能承载大量多媒体内容网络的转变。
4G无线系统被设计出来用来满足IMT-A技术使用IP面向所有服务的需求。
在4G系统中，先进的无线接口被用于正交频分复用技术（OFDM），多输入多输出系统（MIMO）和链路自适应技术。
4G无线网络可支持数据速率可达1Gb/s的低流度，比如流动局域无线访问，还有速率高达100M/s的高流速，例如像移动访问。
LTE系统和它的延伸系统LTE-A，作为实用的4G系统已经在全球于最近期或不久的将来部署。
然而，每年仍然有戏剧性增长数量的用户支持移动宽频带系统。
5、外文文献翻译(附原文)产业集群,区域品牌,Industrial cluster ,Regional brand
外文文献翻译（附原文）外文译文一：产业集群的竞争优势——以中国大连软件工业园为例Weilin Zhao,Chihiro Watanabe，Charla-Griffy-Brown[J]. Marketing Science,2009(2):123-125.摘要：本文本着为促进工业的发展的初衷探讨了中国软件公园的竞争优势。
产业集群深植于当地的制度系统，因此拥有特殊的竞争优势。
根据波特的“钻石”模型、SWOT模型的测试结果对中国大连软件园的案例进行了定性的分析。
产业集群是包括一系列在指定地理上集聚的公司，它扎根于当地政府、行业和学术的当地制度系统，以此获得大量的资源，从而获得产业经济发展的竞争优势。
为了成功驾驭中国经济范式从批量生产到开发新产品的转换，持续加强产业集群的竞争优势,促进工业和区域的经济发展是非常有必要的。
关键词：竞争优势；产业集群；当地制度系统；大连软件工业园；中国；科技园区；创新；区域发展产业集群产业集群是波特[1]也推而广之的一个经济发展的前沿概念。
作为一个在全球经济战略公认的专家,他指出了产业集群在促进区域经济发展中的作用。
他写道：集群的概念,“或出现在特定的地理位置与产业相关联的公司、供应商和机构，已成为了公司和政府思考和评估当地竞争优势和制定公共决策的一种新的要素。
但是，他至今也没有对产业集群做出准确的定义。
最近根据德瑞克、泰克拉[2]和李维[3]检查的关于产业集群和识别为“地理浓度的行业优势的文献取得了进展”。
“地理集中”定义了产业集群的一个关键而鲜明的基本性质。
产业由地区上特定的众多公司集聚而成,他们通常有共同市场、,有着共同的供应商,交易对象,教育机构和其它像知识及信息一样无形的东西，同样地,他们也面临相似的机会和威胁。
在全球产业集群有许多种发展模式。
比如美国加州的硅谷和马萨诸塞州的128鲁特都是知名的产业集群。
前者以微电子、生物技术、和风险资本市场而闻名,而后者则是以软件、计算机和通讯硬件享誉天下[4]。
The Impact of E-commerce on International Trade and Employment外文文献翻译
The Impact of E-commerce on InternationalTrade and Employment(Partly)The benefits of e-commerce on economy are classified into three groups: firms,prices,productivity.A combination of technological and market forces have compelled companies to examine and reinvent their supply chain strategies. To stay competitive,firms have searched for greater coordination and collaboration among supply chain partners to wring out the inefficiencies that might exist within firm transactions.Many of the transactions can be done externally,via electronic markets.The Internet and its applications have thus served to enhance the process to increase efficiencies in supply chain management.Moreover,ICTs allows firms to identify the market for the inputs they need in production and substantially reduces the cost of gathering and processing information about the prices and input characteristics of different goods and services.In addition,information and communication technologies make it easier to integrate and control remote operations without incurring prohibitive costs.Better ICTs enable optimized operations to be established in low cost domestic locations and countries where comparative advantage is present for the outsourced task.E-commerce thus facilitates the efforts of companies to separate and spin out every conceivable activity in the production process to entities outside the firm.The available empirical evidence on price is mixed.Some of the first studies found that prices of goods sold through the Internet were on average higher than their equivalent purchased through traditional retailers.A more recent study,however,found prices for books and CDs on average to be about 10per cent lower on the Internet compared with traditional retailers in the1United States.Evidence on demand sensitivity to price is also mixed,with some work suggesting a low and others a high price elasticity of demand.Evidence from countries were the use of information and communication technologies is widespread suggests substantial improvements in productivity. In an analysis of the contribution of information and communications technology to economic growth in nine OECD countries,over the past two decades,ICTs contributed between0.2and0.5%per year to economic growth. During the second half of the1990s,this contribution rose to0.3to0.9%per year.Effects were the largest in the United States,followed by Australia, Finland and Canada.Another study suggests that the rise of B2B e-commerce will in the long run increase the level of GDP by5per cent.In addition,it has been argued that Internet related technologies could increase the speed of financial operations,which raises the issue as to how interest rates should be set and whether the short end of interest setting needs to become shorter i.e.time units smaller than a day.Moreover,several studies conclude that information and communication technologies were an important factor in improving the overall efficiency of labor and capital,in the United States.Most importantly,productivity increased not only in the information and communication producing sectors but in sectors of the economy that do not produce information and communications technology.In other words,users of these technologies also benefited from increased productivity.In addition,the data seems to reveal that workers in the US may have also benefited from increased productivity induced by e-commerce and ICTs.Effects of e-commerce on international trade and employmentElectronic commerce offers important opportunities to both developing and developed countries.The development of e-commerce is likely to have both direct and indirect impacts on international trade as well as the labor markets.2E-commerce and International TradeThe use of electronic means and the internet can make the process of initiating and doing trade a lot easier,faster,and less expensive.Collecting information is a costly activity when it involves acquiring information across national borders.In fact,these costs can be so high that they can be considered a substantial barrier to trade.Finding the right supplier,specifying the product’s requirements and quality,negotiating the price,arranging deliveries and marketing products is also very costly.With the internet and e-commerce applications,a whole range of these activities can occur without having buyer and seller in close physical proximity.In this respect,the internet will likely promote trade much in the same way as lifting other trade barriers would.Thus, it is the volume of international trade will likely increase.Especially,the internet when organized via electronic markets through e-commerce applications,reduces information costs and allows consumers and sellers to be matched and interact electronically,reducing the significance of geographic proximity and traditional business networks.A study found ample evidence that,development of global markets via the Internet makes historical linkages less important and suggest that countries with the fewest past trade links have the most to gain from the Internet,especially for developing countries.An evident from a1998survey of enterprises in15low and middle-income countries suggests that firms in these countries use search engines to research market opportunities.However,whether e-commerce promote international trade will depend on the nature of the good.On the one hand,a number of products that traditionally have required physical delivery can be delivered to a customer via a network in digital form.Examples of these include media products,such as text,film and computer software.On the other hand,most of the goods traded internationally are not deliverable in digital form and therefore transportation costs will3continue to play a significant role.In this regard,world trade in digital media products amounted to about US$44billion in1996,less than1per cent of total world trade.For most countries,trade in digital media products was less than 2%of total trade.The rate of growth of trade in digital media products is high and above the average rate growth of total trade:the growth in trade for digital media products on average was about10%between1990and1996,1.5times faster than total world merchandise trade.E-commerce will also have a significant impact on trade in services.The most relevant change in trade in services is e-commerce’s and information technology’s ability to make non-tradable services into tradable.Activities that were previously non-tradable(i.e.research and development,computing, inventory management,quality control,accounting,personnel management, marketing,advertising and distribution)will be traded through the use of e-commerce.All that is required is that the quality,speed and cost of communication between buyer and seller be adequate.International cross-border trade in a wide range of services,financial,legal,telecommunications and customized software will increasingly be carried out by electronic means.Internet effectively opens markets that were previously closed;it is tempting to think of it as another form of trade liberalization.A technical improvement lowers costs of transactions and generates far larger benefits than the triangular efficiency gains from trade liberalization.Indeed,the decline in costs increases potential benefits from trade liberalization in many services sectors.As communications costs continue to fall,the potential for international outsourcing grows.As a result,outsourcing management and production activities will become more important.Obviously,some sectors and activities throughout the world are more prone than others to be affected by developments in e-commerce.In this respect,there have been attempts to identify industries or4sectors that may be more predisposed to the effects of developments in e-commerce and technology.For example,a research,based on criteria that weighed the effect of cost savings,increases in productivity,industry readiness and product fitness to e-commerce,has elaborated an index of Internet intensiveness.The finding based on data from the United States and Europe suggests that the most internet intensive sectors are electronic components,food, pharmaceuticals and forest/paper products.It is likely to expect that in other regions,these same sectors and industries will be affected by e-commerce via outsourcing.At the same time,recent evidence suggests that transnational corporations are likely to be the most intensive users of electronic commerce.The potential benefits from international e-commerce to a developing country arise from a reduction in the cost of imports as much as from an increase in the price received for exports.Even if a country does not export any services,it can benefit from imports of services,paying for them in terms of goods.Cheaper availability of medical,engineering and architectural services, long-distance learning and reduced costs of transactions can confer benefits even if the country does not immediately export the services traded through Internet.Several recent studies have suggested that trade also stimulates internet use. For example,a study suggests that the extent to which a country is integrated into the global economy can play a role in its access to IT.Countries with greater contact,either via trade,tourism,or geographical location,with the outside world,are more likely to be advanced in digital technology than other countries.Similarly,another study argues that countries open to imports from high-income OECD economies will benefit from knowledge spillovers and, hence,be more likely to adopt new technologies.Following figure and table shows world trade volume and the growth of world internet usage.According to figure1,although world trade volume fluctuated between2000and2010,it had5a positive situation until2008.After2008,it declined because of the global financial crisis and then started to increase again.World internet usage increased all regions between2000and2010.Several recent studies have asked whether internet use affects trade.For example,using data from20low and middle income countries in Eastern Europe and Central Asia,a research shows that enterprises with internet connections export more,as a share of their total sales,than enterprises without connections.In addition,using a gravity model of trade,another research find that Internet use appears to be significantly correlated with trade after1996, although it finds only a weak correlation in1995and1996.The same research also found that internet has a greater effect on trade in developing countries than it does in developed countries.In a second paper,same researchers find that exports of services to the United States grew more quickly for countries with greater internet penetration in a sample of31middle-and high-income countries.Developing countries with higher Internet penetration export more to high-income countries than do developing countries where penetration is lower. However,they do not appear to export more to other developing countries and high-income countries with greater Internet penetration do not appear to export more to either developing or developed countries.These results make intuitive sense.First,Internet access is so common among manufacturing enterprises in high-income countries that the differences in the number of internet users as a percent of the population probably reflects differences at the consumer,rather than the enterprise,level in developed countries.In developing countries, contrarily,many manufacturing enterprises remain unconnected.Second, because Internet access is less common in developing countries than in developed countries,being connected to the Internet would seem to be a greater advantage for enterprises in developing countries with respect to exporting to6developed countries.Finally,because of strong regional differences in income, and taking into account the fact that most exports from developing countries to other developing countries will be within the same region,communication costs will presumably be greater for exports to distant developed countries than it would be for exports to neighboring developing countries.Employment and e-commerceAs e-commerce continues expanding,its impact on employment and wages will be the result of a complex set of interactive forces.Electronic commerce is expected to directly and indirectly create new jobs as well as cause job losses. New jobs will be gained in information-related goods and services, entertainment,software and digital products,for instance.Indirect creation of jobs will occur via increased demand and productivity.Jobs will be lost when e-commerce substitutes for the traditional way of doing business.The jobs most likely affected,as preliminary evidence suggests,are those in the retail sector, postal offices and travel agencies.However,the effects will not be uniform across countries,geographic areas,industries or skill groups.Evidence for the United States and the European Union reveals that employment in ICT-related industries and in the finance,business and commerce-related sectors account for almost one-third and one-fourth of total employment,respectively.More importantly,they accounted for28%and35% of job creation in1993-96.The increased demand for high-skill workers,with augmented managerial and executive responsibilities and a greater need for specialized expertise,who will command higher wages are viewed by some researchers as a cause of worsening of income distribution.Evidence for the U.S.seems to suggest that demand has shifted from low and middle-wage occupations and skills toward highly rewarded jobs and tasks requiring specific talent,training or management ability.Much of the labor demand shift is being explained by skill-biased7technical change.Overall,low wage,low-skill production,did not enjoy the wage increases that IT-intensive,high productivity growth industries experienced.Thus,real wages grew in IT-intensive industries,were wages were already relatively high and did not change in IT-poor industries that faced workforce reductions and were already employing low-wage workers.Among developing countries,countries best situated to benefit from e-commerce through export expansion are those with a substantial pool of skilled labor,capable of working on or near the frontier of computer technology. The case of India,which is already benefiting from e-exports in a big way,best illustrates this point.A consulting firm made a estimate to calculate the multiplier effects of e-commerce on employment in France,Germany,Italy and the U.K.By utilizing input-output framework and methodology,three types of economic effects were obtained–direct effects produced by e-commerce revenues in the industries directly involved,indirect effects generated by inter-industry linkages,and second order effects determined through the basic Keynesian income-consumption circuit from the value added generated in the first-order round.The results reveal that indirect and second-order effects for employment requirements are large enough to counterbalance the direct losses of jobs (assuming a100%substitution rate of e-commerce with traditional industries), with the exception of the case of Germany.This also confirms the potential of e-commerce to create jobs in the future.Their estimates also show that e-commerce businesses that rely on labor-intensive intermediaries will directly eliminate a larger share of direct jobs.This article concludes following results.Internet will promote international trade much as lifting other trade barriers would.Thus,the volume of international trade will increase via e-commerce.The countries open to imports from high-income economies will benefit from knowledge spillovers.8E-commerce can also have a significant impact on trade in services.In addition, electronic commerce is also expected to directly and indirectly create new jobs as well as cause job losses.New jobs will be generated in the information and communication technologies sector,while the indirect creation of jobs will occur via increased demand and productivity.The net employment gains and losses will depend on the demand for certain skills.9电子商务对国际贸易和就业的影响（部分）电子商务对经济的促进作用体现在三个方面：企业，价格，生产力。
2011年英语历年考研真题阅读翻译
2011年英语历年考研真题阅读翻译D但是，这个任命之所以一起人们惊讶的原因却是Gilbert相对而言并不是很有名.甚至在时代杂志上发文支持Gilbert任命的Tommasini都称其为：低调的音乐家，在他身上找不到那种飞扬跋扈的指挥家的气质.纽约爱乐乐团迄今为止都是由像Gustav Mahler(古斯塔夫•马勒)和Pierre Boulez布列兹那样的音乐家领导的.这样去描述这个乐团的下一位指挥，至少对于时代的读者而言，这是一种苍白的表扬.就我看来，我不知道Gilbert是否是一个伟大的指挥家或者是一个好的指挥.但是我能确定的是，他能表现出很多有趣的乐章，但是我却应该不会去Avery Fisher Hall或者其他地方去听一场有趣的交响乐演出.我要做的事情就是去我的CD架上，或者打开的我的电脑从ITUNES上下载更多的唱片.那些忠实的音乐会观众会讲唱片并不能代替现场的演出，但是他们忽略了一些事情.当下为了获得艺术爱好者的钱，时间，关注度，古典音乐的演奏家们(其实就是指交响乐团，同意复述)不仅要和剧院，舞蹈队，演出公司和博物馆竞争，而且还需要和那些记录了20世纪的伟大的古典音乐演奏者表演的唱片竞争.唱片很便宜，那里都能买到，并且比现在很多现场音乐会的艺术质量要高.进一步的讲，听众能选择听唱片的时间和地点.这些到处可以获得的唱片给传统的演出机构带来了危机.对于古典音乐演奏者而言，他们可能的一个回应就是排练出唱片上没有的曲目.Gilbert对新音乐兴趣已经被广泛的关注了：Alex Ross，一名古典音乐的批评家，就这样描述道：他能够把爱乐乐团变成一个完全不同，更加有活力的组织.但是那种不同的性质也是什么呢？可能仅仅增加乐团演出的曲目是不够的，如果Gilbert和他的乐团要进步的话，他们就必须首先改变美国最古老的乐团(就是纽约爱乐乐团)同他们想吸引的新观众间的关系.Text 2When Liam McGee departed as president of Bank of America in August, his explanation was surprisingly straight up. Rather than cloaking his exit in the usual vague excuses, he came right out and said he was leaving “to pursue my g oal of running a company.” Broadcasting his ambition was “very much my decision,” McGee says. Within two weeks, he was talking for the first time with the board of Hartford Financial Services Group, which named him CEO and chairman on September 29.McGee says leaving without a position lined up gave him time to reflect on what kind of company he wanted to run. It also sent a clear message to the outside world about his aspirations. And McGee isn’t alone. In recent weeks the No.2 executives at Avon and American Express quit with the explanation that they were looking for a CEO post. As boards scrutinize succession plans in response to shareholder pressure, executives who don’t get the nod also may wish to move on. A turbulent business environment also has senior managers cautious of letting vague pronouncements cloud their reputations.As the first signs of recovery begin to take hold, deputy chiefs may be more willing to make the jump without a net. In the third quarter, CEO turnover was down 23% from a year ago as nervous boards stuck with the leaders they had, according to Liberum Research. As the economy picks up, opportunities will abound for aspiring leaders.The decision to quit a senior position to look for a better one is unconventional. For years executives and headhunters have adhered to the rule that the most attractive CEO candidates are the ones who must be poached. Says Korn Ferry，senior partner Dennis Carey :“I can’t think of a single search I’ve done where a board has not instructed me to look at sitting CEOs first.”Those who jumped without a job haven’t always landed in top positions quickly. Ellen Marram quit as chief of Tropicana when the business became part of PepsiCo (PEP) a decade ago, saying she wanted to be a CEO. It was a year before she became head of a tiny Internet-based commodities exchange. Robert Willumstad left Citigroup in 2005 with ambitions to be a CEO. He finally took that post at a major financial institution three years later.Many recruiters say the old disgrace is fading for top performers. The financial crisis has made it more acceptable to be between jobs or to leave a bad one. “The traditional rule was it’s safer to stay where you are, but that’s been fundamentally inverted,” says one headhunter. “The people who’ve been hurt the worst are those who’ve stayed too long.”译文：当八月份，Liam McGee以总裁的身份从美国银行离职的时候，他的解释出人意料的直白.他没有忸怩的用平常的模糊的理由来遮掩他的离开，他很坦诚的讲他离开就是为了去追求他经营一家公司的目标.McGee说宣扬自己的目标就是自己的决定.两周后，他第一次和Hartford Financial Services Group的董事会第一次会谈，这家公司在9月29日提名他为董事会主席和CEO.他说在离开的时候并没有找好后面的职位(下家)，使他有时间去反思他到底想去经营一家什么样的公司.这同时也就他的激情和决心，给了外界一个清晰的信号.这样做的并不只是McGee一个人.最近几周，Avon and American Express的一些高级经理离职并解释说想需找一个CEO的职位.当董事会迫于股东的压力对一系列的计划进行审查的时候，那些计划被否定掉的经理们也会想离开.激烈的商业环境同样使得高级经理很小心，模糊的表态可能会破坏他们的声誉.当经济复苏的标志开始确定的时候，二把手们可能更愿意在没有网(新的工作)情况下换工作.第三季度，根据Liberum的调查，CEO的更迭和一年前相比减少了23%，这是由于紧张的董事会紧盯着他们的CEO们.随着经济的复苏和好转，对有理想的头儿们，机会是很多的.离开高管的职位去寻找一个更好的职位，并不是传统的做法.多年以来，经理们和猎头们都认同这样一个原则：最有吸引力的CEO的竞争是那些需要去挖来的人.Korn Ferry，senior partner Dennis Carey说道：我所做的每一次的招聘中，董事会都要求我从那些在任的CEO中寻找人选.那些没有找到工作就离开的人并不是很快就能找到顶级的职位.10年前，Tropicana被PepsiCo (PEP)收购了，她以经理的身份离职了，她说他想当CEO.但是花了一年的时间她才成为一家小型互联网交换公司的头.2005年Robert Willumstad带着想成为CEO的梦想离开了Citigroup.可是三年后他才成为了一家主要的金融机构的CEO.很多招聘的人都说对于高管而言，过去认为的丢脸的感觉(没有工作)已经慢慢消失了.金融危机已经使得跳槽，离开一个不好的工作变得更加可以接受了.一个猎头就说到：“传统的规则是待在你原来的地方会更加安全，但是现在已经彻底改变了. 那些受伤最厉害的就是那里在一个地方待太久的人.”Text 3The rough guide to marketing success used to be that you got what you paid for. No longer. While traditional “paid” media – such as television commercials and print advertisements – still play a major role, companies today can exploit many alternative forms of media. Consumers passionate about a product may create "earned" media by willingly promoting it to friends, and a company may leverage “owned” media by sending e-mail alerts about products and sales to customers registered with its Web site. In fact，the way consumers now approach the process of making purchase decisions means that marketing's impact stems from a broad range of factors beyond conventional paid media.Paid and owned media are controlled by marketers promoting their own products. For earned media , such marketers act as the initiator for users’ responses. But in some cases, one marketer’s owned media become another marketer’s paid media – for instance, when an e-commerce retailer sells ad space on its Web site. We define such sold media as owned media whose traffic is so strong that other organizations place their content or e-commerce engines within that environment. This trend ,which we believe is still in its infancy, effectively began with retailers and travel providers such as airlines and hotels and will no doubt go further. Johnson & Johnson, for example, has created BabyCenter, a stand-alone media property that promotes complementary and even competitive products. Besides generating income, the presence of other marketers makes the site seem objective, gives companies opportunities to learn valuable information about the appeal of other companies’ marketing, and may help expand user traffic for all companies concerned.The same dramatic technological changes that have provided marketers with more (and more diverse) communications choices have also increased the risk that passionate consumers will voice their opinions in quicker, more visible, and much more damaging ways. Such hijacked media are the opposite of earned media: an asset or campaign becomes hostage to consumers, other stakeholders, or activists who make negative allegations about a brand or product. Members of social networks, for instance, are learning that they can hijack media to apply pressure on the businesses that originally created them.If that happens, passionate consumers would try to persuade others to boycott products, putting the reputation of the target company at risk. In such a cas e, the company’s response may not be sufficiently quick or thoughtful, and the learning curve has been steep. Toyota Motor, for example, alleviated some of the damage from its recall crisis earlier this year with a relatively quick and well-orchestrated social-media response campaign, which included efforts to engage with consumers directly on sites such as Twitter and the social-news site Digg.译文：过去，市场营销的成功诀窍简而言之就是一分钱一分货.然而时过境迁.虽然传统的“付费”(paid)媒介，比如电视和广播广告、平面广告和路边广告牌等，仍然扮演着重要角色，但企业如今还可以利用许多其他形式的媒介.比如，痴迷于某种产品的消费者，可能会乐意将之推荐给朋友，从而为企业创造因产品的优良品质带来的“无偿”(earned)媒介.企业还可以利用“自有”(owned)媒介，通过邮件向其网站的注册用户发送产品和销售提示.事实上，如今消费者作出购买决定的方式，意味着市场营销的影响力来自于传统付费媒介之外的广泛因素.营销人员通过付费和自有媒介推销其产品，而在“无偿”媒介方面，营销人员就像是触发用户响应的初始催化剂.在某些情况下，某营销者的自有媒介会成为另一个营销者的付费媒介.比如，当某电子商务零售商出售其网站的广告空间时，我们就将这种“售出”媒介定义为拥有巨大流量、以致其他机构纷纷前来投放内容或电子商务引擎的自有媒介.我们认为，这种趋势已蓬勃发端于零售商和航空、酒店等旅游供应商，虽然还处于初始阶段，但无疑可以走得更远.比如，强生公司创建了著名网站BabyCenter，借以推广互补性乃至竞争性产品，而其他营销者的出现不仅带来了收入，还令该网站看起来公正客观，并且使企业有机会从其他公司的营销活动中获得可贵的信息，最后还有助于扩大所有相关企业的用户流量.剧烈的技术变革使营销人员获得了数量更多、种类更广的沟通选择，但同时也带来了更高的风险，因为激动的消费者能够以更迅速、更明显、更有害的方式来表达他们的意见.这就是与“无偿”媒介相对的“劫持”媒介：某项资产或活动变成了对某个品牌或产品不满的消费者、其他股东或积极分子的劫持物.比如，社交网络用户正领悟到，他们可以通过“劫持”媒介来对最初创建该媒介的企业施加压力.如果那种事情发生，激动的消费者试图劝服其他人共同抵制两家公司的产品，从而危及企业声誉.当这种事情发生的时候，如果企业的回应不够快或不够好，那么就可能酿成悲剧.比如，在今年较早前发生的召回危机中，丰田汽车公司采取了较快且较有序的社交媒体回应行动，包括在Twitter和社会新闻网站Digg等网站上与客户进行直接交流，从而挽回了部分损失.Text 4It’s no surprise that Jennifer Senior’s insightful, provocative magazine cover story, “I love My Children, I Hate My Life,” is arousing much chatter –nothing gets people talking like the suggestion that child rearing is anything less than a completely fulfilling, life-enriching experience. Rather than concluding that children make parents either happy or miserable, Senior suggests we need to redefine happiness: instead of thinking of it as something that can be measured by moment-to-moment joy, we should consider being happy as a past-tense condition. Even though the day-to-day experience of raising kids can be soul-crushingly hard, Senior writes that “the very things that in the moment dampen o ur moods can later be sources of intense gratification and delight.”The magazine cover showing an attractive mother holding a cute baby is hardly the only Madonna-and-child image on newsstands this week. There are also stories about newly adoptive – and newly single – mom Sandra Bullock, as well as the usual “Jennifer Aniston is pregnant” news. Practically every week features at least one celebrity mom, or mom-to-be, smiling on the newsstands.In a society that so persistently celebrates procreation, is it any wonder that admitting you regret having children is equivalent to admitting you supportkitten-killing ? It doesn’t seem quite fair, then, to compare the regrets of parents to the regrets of the children. Unhappy parents rarely are provoked to wonder if they shouldn’t have had kids, but unhappy childless folks are bothered with the message that children are the single most important thing in the world: obviously their misery must be a direct result of the gaping baby-size holes in their lives.Of course, the image of parenthood that celebrity magazines like Us Weekly and People present is hugely unrealistic, especially when the parents are single mothers like Bullock. According to several studies concluding that parents are less happy than childless couples, single parents are the least happy of all. No shock there, considering how much work it is to raise a kid without a partner to lean on; yet to hear Sandra and Britney tell it, raising a kid on their “own” (read: with round-the-clock help) is a piece of cake.It’s hard to imagine that many people are dumb enough to want children just because Reese and Angelina make it look so glamorous: most adults understand that a baby is not a haircut. But it’s interesting to wonder if the images we see every week of stress-free, happiness-enhancing parenthood aren’t in some small, subconscious way contributing to our own dissatisfactions with the actual experience, in the same way that a small part of us hoped getting “ the Rachel” might make us look just a little bit like Jennifer Aniston.译文：毫无疑问，Jennifer Senior在有煸动意味的的杂志封面故事中表达了她的独到见解，“我爱我的孩子们，我讨厌我的生活”——这唤起了人们的谈兴.人们一谈到养孩子就会觉得这是一件完全令人愉悦、生活充实的事情.Jennifer Senior没有指出养孩子到底是使得父母快乐呢还是痛苦呢，她倒是认为，我们需要重新定义幸福：幸福不应该是一个个瞬间的快乐组合的可以被衡量的东西；我们应该把幸福视为一种过去式的状态.尽管抚养孩子的日子漫长难熬，令人筋疲力尽，但是Jennifer Senior认为，正是那些心绪沉重的时刻，日后却成为我们欢乐的源泉.杂志封面上一位给力的母亲抱着一个可爱的婴儿，这种圣母与圣子(麦当娜和孩子)的图画这周在杂志上多次出现.例如杂志上讲到最近刚收养孩子的母亲——有时是刚变成单身母亲——桑德拉布鲁克，以及那种很常见的“詹尼弗阿尼斯顿怀孕了”的新闻.实际上，每周都有至少一位名人母亲、或者准母亲在杂志上笑迎读者.在一个不断地庆祝生育的社会中，承认自己后悔生育孩子就相当于承认自己支持杀小猫，这难道不值得反思吗？把父母的后悔与孩子的后悔相比较，这显然并不合理.没有人会去让不情愿养孩子的父母去反思自己是否不该养孩子，但是那不幸福的没有孩子的人却为类似这样的信息所困扰：“孩子是世上唯一最可珍惜的东西”，显然，你们的不幸必须通过生儿育女才能得以消除.当然，像美国周刊与人物这样的杂志提供的名人父母的形象是非常不切实际的.特别是像Bullock这样的单身母亲时更是如此.多项研究表明，有孩子的父母很少比没有孩子的夫妇更快乐，而单亲家庭是最不快乐的.这并不奇怪，因为一个人养一个孩子实在太麻烦了，没有人可以依靠.然而，你听听Sandra和Britney 说的话：自己“一个人”养孩子，其实非常简单.(她们当然觉得简单了，因为她们是在周围有一帮人全天侯的侯着啊.)很难想象有的人生孩子就只是很傻很天真因为Reese和Angelina这种名流使这种行为变的很光鲜，——多数成年人其实理解：养孩子可不是剪头发那样简单.但这确实有趣：反思一下我们每周看到的无忧无虑，幸福诱人的为人父母的生活会不会从一种微小的，无意识的方面加剧我们对于现实生活的不满.这种方式就好像：我们有那种想成为“ the Rachel”(老友记中的单身妈妈)的心理，这种心理，使得我们看上去有点像詹尼弗安尼斯顿(Rachel 的扮演者).。
The Impact of E-commerce on International Trade and Employment外文文献翻译
The Impact of E-commerce on InternationalTrade and Employment(Partly)The benefits of e-commerce on economy are classified into three groups: firms, prices, productivity. A combination of technological and market forces have compelled companies to examine and reinvent their supply chain strategies. To stay competitive, firms have searched for greater coordination and collaboration among supply chain partners to wring out the inefficiencies that might exist within firm transactions. Many of the transactions can be done externally, via electronic markets. The Internet and its applications have thus served to enhance the process to increase efficiencies in supply chain management . Moreover, ICTs allows firms to identify the market for the inputs they need in production and substantially reduces the cost of gathering and processing information about the prices and input characteristics of different goods and services. In addition, information and communication technologies make it easier to integrate and control remote operations without incurring prohibitive costs. Better ICTs enable optimized operations to be established in low cost domestic locations and countries where comparative advantage is present for the outsourced task. E-commerce thus facilitates the efforts of companies to separate and spin out every conceivable activity in the production process to entities outside the firm .The available empirical evidence on price is mixed. Some of the first studies found that prices of goods sold through the Internet were on average higher than their equivalent purchased through traditional retailers. A more recent study, however, found prices for books and CDs on average to be about 10 per cent lower on the Internet compared with traditional retailers in the1United States . Evidence on demand sensitivity to price is also mixed, with some work suggesting a low and others a high price elasticity of demand .Evidence from countries were the use of information and communication technologies is widespread suggests substantial improvements in productivity. In an analysis of the contribution of information and communications technology to economic growth in nine OECD countries, over the past two decades, ICTs contributed between 0.2 and 0.5 % per year to economic growth . During the second half of the 1990s, this contribution rose to 0.3 to 0.9% per year. Effects were the largest in the United States, followed by Australia, Finland and Canada . Another study suggests that the rise of B2B e-commerce will in the long run increase the level of GDP by 5 per cent . In addition, it has been argued that Internet related technologies could increase the speed of financial operations, which raises the issue as to how interest rates should be set and whether the short end of interest setting needs to become shorter i.e. time units smaller than a day .Moreover, several studies conclude that information and communication technologies were an important factor in improving the overall efficiency of labor and capital, in the United States . Most importantly, productivity increased not only in the information and communication producing sectors but in sectors of the economy that do not produce information and communications technology . In other words, users of these technologies also benefited from increased productivity. In addition, the data seems to reveal that workers in the US may have also benefited from increased productivity induced by e-commerce and ICTs .Effects of e-commerce on international trade and employmentElectronic commerce offers important opportunities to both developing and developed countries. The development of e-commerce is likely to have both direct and indirect impacts on international trade as well as the labor markets.2E-commerce and International TradeThe use of electronic means and the internet can make the process of initiating and doing trade a lot easier, faster, and less expensive. Collecting information is a costly activity when it involves acquiring information across national borders. In fact, these costs can be so high that they can be considered a substantial barrier to trade. Finding the right supplier, specifying the product’s requirements and quality, negotiating the price, arranging deliveries and marketing products is also very costly. With the internet and e-commerce applications, a whole range of these activities can occur without having buyer and seller in close physical proximity. In this respect, the internet will likely promote trade much in the same way as lifting other trade barriers would. Thus, it is the volume of international trade will likely increase .Especially, the internet when organized via electronic markets through e-commerce applications, reduces information costs and allows consumers and sellers to be matched and interact electronically, reducing the significance of geographic proximity and traditional business networks . A study found ample evidence that, development of global markets via the Internet makes historical linkages less important and suggest that countries with the fewest past trade links have the most to gain from the Internet, especially for developing countries . An evident from a 1998 survey of enterprises in 15 low and middle-income countries suggests that firms in these countries use search engines to research market opportunities .However, whether e-commerce promote international trade will depend on the nature of the good. On the one hand, a number of products that traditionally have required physical delivery can be delivered to a customer via a network in digital form. Examples of these include media products, such as text, film and computer software. On the other hand, most of the goods traded internationally are not deliverable in digital form and therefore transportation costs will3continue to play a significant role. In this regard, world trade in digital media products amounted to about US$44 billion in 1996, less than 1 per cent of total world trade. For most countries, trade in digital media products was less than 2% of total trade. The rate of growth of trade in digital media products is high and above the average rate growth of total trade: the growth in trade for digital media products on average was about 10% between 1990 and 1996, 1.5 times faster than total world merchandise trade .E-commerce will also have a significant impact on trade in services. The most relevant change in trade in services is e-commerce’s and information technology’s ability to make non-tradable services into tradable. Activities that were previously non-tradable (i.e. research and development, computing, inventory management, quality control, accounting, personnel management, marketing, advertising and distribution) will be traded through the use of e-commerce. All that is required is that the quality, speed and cost of communication between buyer and seller be adequate. International cross-border trade in a wide range of services, financial, legal, telecommunications and customized software will increasingly be carried out by electronic means .Internet effectively opens markets that were previously closed; it is tempting to think of it as another form of trade liberalization. A technical improvement lowers costs of transactions and generates far larger benefits than the triangular efficiency gains from trade liberalization. Indeed, the decline in costs increases potential benefits from trade liberalization in many services sectors .As communications costs continue to fall, the potential for international outsourcing grows. As a result, outsourcing management and production activities will become more important. Obviously, some sectors and activities throughout the world are more prone than others to be affected by developments in e-commerce. In this respect, there have been attempts to identify industries or4sectors that may be more predisposed to the effects of developments in e-commerce and technology. For example, a research, based on criteria that weighed the effect of cost savings, increases in productivity, industry readiness and product fitness to e-commerce, has elaborated an index of Internet intensiveness. The finding based on data from the United States and Europe suggests that the most internet intensive sectors are electronic components, food, pharmaceuticals and forest/paper products. It is likely to expect that in other regions, these same sectors and industries will be affected by e-commerce via outsourcing . At the same time, recent evidence suggests that transnational corporations are likely to be the most intensive users of electronic commerce .The potential benefits from international e-commerce to a developing country arise from a reduction in the cost of imports as much as from an increase in the price received for exports. Even if a country does not export any services, it can benefit from imports of services, paying for them in terms of goods. Cheaper availability of medical, engineering and architectural services, long-distance learning and reduced costs of transactions can confer benefits even if the country does not immediately export the services traded through Internet .Several recent studies have suggested that trade also stimulates internet use. For example, a study suggests that the extent to which a country is integrated into the global economy can play a role in its access to IT. Countries with greater contact, either via trade, tourism, or geographical location, with the outside world, are more likely to be advanced in digital technology than other countries. Similarly, another study argues that countries open to imports from high-income OECD economies will benefit from knowledge spillovers and, hence, be more likely to adopt new technologies. Following figure and table shows world trade volume and the growth of world internet usage. According to figure 1, although world trade volume fluctuated between 2000 and 2010, it had5a positive situation until 2008. After 2008, it declined because of the global financial crisis and then started to increase again. World internet usage increased all regions between 2000 and 2010.Several recent studies have asked whether internet use affects trade. For example, using data from 20 low and middle income countries in Eastern Europe and Central Asia, a research shows that enterprises with internet connections export more, as a share of their total sales, than enterprises without connections . In addition, using a gravity model of trade, another research find that Internet use appears to be significantly correlated with trade after 1996, although it finds only a weak correlation in 1995 and 1996. The same research also found that internet has a greater effect on trade in developing countries than it does in developed countries. In a second paper, same researchers find that exports of services to the United States grew more quickly for countries with greater internet penetration in a sample of 31 middle-and high-income countries .Developing countries with higher Internet penetration export more to high-income countries than do developing countries where penetration is lower. However, they do not appear to export more to other developing countries and high-income countries with greater Internet penetration do not appear to export more to either developing or developed countries. These results make intuitive sense. First, Internet access is so common among manufacturing enterprises in high-income countries that the differences in the number of internet users as a percent of the population probably reflects differences at the consumer, rather than the enterprise, level in developed countries. In developing countries, contrarily, many manufacturing enterprises remain unconnected. Second, because Internet access is less common in developing countries than in developed countries, being connected to the Internet would seem to be a greater advantage for enterprises in developing countries with respect to exporting to6developed countries. Finally, because of strong regional differences in income, and taking into account the fact that most exports from developing countries to other developing countries will be within the same region, communication costs will presumably be greater for exports to distant developed countries than it would be for exports to neighboring developing countries.Employment and e-commerceAs e-commerce continues expanding, its impact on employment and wages will be the result of a complex set of interactive forces. Electronic commerce is expected to directly and indirectly create new jobs as well as cause job losses. New jobs will be gained in information-related goods and services, entertainment, software and digital products, for instance. Indirect creation of jobs will occur via increased demand and productivity. Jobs will be lost when e-commerce substitutes for the traditional way of doing business. The jobs most likely affected, as preliminary evidence suggests, are those in the retail sector, postal offices and travel agencies. However, the effects will not be uniform across countries, geographic areas, industries or skill groups.Evidence for the United States and the European Union reveals that employment in ICT-related industries and in the finance, business and commerce-related sectors account for almost one- third and one-fourth of total employment, respectively. More importantly, they accounted for 28% and 35% of job creation in 1993-96.The increased demand for high-skill workers, with augmented managerial and executive responsibilities and a greater need for specialized expertise, who will command higher wages are viewed by some researchers as a cause of worsening of income distribution. Evidence for the U.S. seems to suggest that demand has shifted from low and middle-wage occupations and skills toward highly rewarded jobs and tasks requiring specific talent, training or management ability. Much of the labor demand shift is being explained by skill-biased7technical change. Overall, low wage, low-skill production, did not enjoy the wage increases that IT-intensive, high productivity growth industries experienced. Thus, real wages grew in IT-intensive industries, were wages were already relatively high and did not change in IT-poor industries that faced workforce reductions and were already employing low-wage workers .Among developing countries, countries best situated to benefit from e-commerce through export expansion are those with a substantial pool of skilled labor, capable of working on or near the frontier of computer technology. The case of India, which is already benefiting from e-exports in a big way, best illustrates this point .A consulting firm made a estimate to calculate the multiplier effects of e-commerce on employment in France, Germany, Italy and the U.K. By utilizing input-output framework and methodology, three types of economic effects were obtained –direct effects produced by e-commerce revenues in the industries directly involved, indirect effects generated by inter-industry linkages, and second order effects determined through the basic Keynesian income-consumption circuit from the value added generated in the first-order round. The results reveal that indirect and second-order effects for employment requirements are large enough to counterbalance the direct losses of jobs (assuming a 100% substitution rate of e-commerce with traditional industries), with the exception of the case of Germany. This also confirms the potential of e-commerce to create jobs in the future. Their estimates also show that e-commerce businesses that rely on labor -intensive intermediaries will directly eliminate a larger share of direct jobs.This article concludes following results. Internet will promote international trade much as lifting other trade barriers would. Thus, the volume of international trade will increase via e-commerce. The countries open to imports from high-income economies will benefit from knowledge spillovers.8E-commerce can also have a significant impact on trade in services. In addition, electronic commerce is also expected to directly and indirectly create new jobs as well as cause job losses. New jobs will be generated in the information and communication technologies sector, while the indirect creation of jobs will occur via increased demand and productivity. The net employment gains and losses will depend on the demand for certain skills.9电子商务对国际贸易和就业的影响（部分）电子商务对经济的促进作用体现在三个方面：企业，价格，生产力。
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Internet-based CommunicationsIf you use the Internet, then you probably use Internet-based communications to contact family, friends or co-workers. From sending an instant message to a friend, to e-mailing co-workers, to placing phone calls, to conducting video conferences, the Internet offers a number of ways to communicate.The advantages of Internet-based communications are many. Since you're already paying for an Internet account (or your employer is), you can save money on phone calls by sending someone an instant message or by using V oIP instead of standard local telephone services. Of course, no technology is without a downside and Internet-based communications has plenty, such as viruses, privacy issues and spam. Like all technologies (and especially technology tied to the Internet), the way we can communicate online is constantly evolving . In this week's "Did You Know...?" article we'll take a look at some of the most popular forms of Internet-based communications.Instant MessagingOne of the fastest-growing forms of Internet communications is instant messaging, or IM. Think of IM as a text-based computer conference between two or more people. An IM communications service enables you to create a kind of private chat room with another individual in order to communicate in real-time over the Internet. Typically, the IM system alerts you whenever somebody on your buddy or contact list is online. You can then initiate a chat session with that particular individual.One reason that IM has become so popular is its real-time nature. Unlike e-mail, where you will wait for the recipient to check his or her e-mail and send a reply, if a person you want to reach is online and available in your IM contact list, your message appears instantly in a window on their screen.While IM is used by millions of Internet users to contact family and friends, it's also growing in popularity in the business world. Employees of a company can have instant access to managers and co-workers in different offices and can eliminate the need to place phone calls when information is required immediately. Overall, IM can save time for employees and help decrease the amount of money a business spends on communications.Key Terms To Understanding Internet-based Communications.SIPShort for Session Initiated Protocol, or Session Initiation Protocol, an application-layer control protocol; a signaling protocol for Internet Telephony. SIP can establish sessions for features such as audio/videoconferencing, interactive gaming, and call forwarding to be deployed over IP networks.WAPShort for the Wireless Application Protocol, a secure specification that allows users to access information instantly via handheld wireless devices such as mobile phones,pagers, two-way radios, smartphones and communicators.More Internet-based Communications TermsE-mailInstant MessagingV oIPV oWiFiInternet FaxMobile IPIP AddressWhile different IM clients offer slightly different features and benefits, the look and feel of an IM client is basically the same. Public IM clients and services available include ICQ, AOL Instant Messenger (AIM), Microsoft MSN Messenger, and Yahoo! Messenger. For businesses and enterprises looking for a more secure method of IM, there are enterprise IM packages available such as Microsoft Live Communication Server 2005 and IBM Lotus Instant Messaging. Third-party software is available to help businesses make using public IM services in the workplace more secure.Some problems and issues associated with IM include spim and virus propagation. Spim is the IM equivalent of spam and is perpetuated by bots that harvest IM screen names off of the Internet and simulate a human user by sending spim to the screen names via an instant message. The spim typically contains a link to a Web site that the spimmer is trying to market. Spim is a bit more intrusive than spam due to the nature of IM itself. These advertisements and junk messages will pop-up in your IM window and you need to deal with the messages immediately, where with e-mail you can usually filter a lot of it out and deal with it later. Additionally, viruses and Trojans can be spread through IM channels. These malicious programs are usually spread when an IM user receives a message that links to a Web site where the malicious code is downloaded. The message will appear to be from a known IM contact, which is why recipients re more likely to click the hyperlink and download the file. Using safe chat rules (such as never clicking the link) and keeping an updated anti-virus program on your system will help reduce the chances of becoming infected by malicious programs being spread through instant messaging.Internet Telephony & VoIPInternet telephony consists of a combination of hardware and software that enables you to use the Internet as the transmission medium for telephone calls. For users who have free, or fixed-price Internet access, Internet telephony software essentially provides free telephone calls anywhere in the world. In its simplest form, PC-to-PC Internet telephony can be as easy as hooking up a microphone to your computer and sending your voice through a cable modem to a person who has Internet telephony software that is compatible with yours. This basic form of Internet telephony is not without its problems, however. Connecting this way is slower than using a traditional telephone, and the quality of the voice transmissions is also not near the quality you would get when placing a regular phone call.Many Internet telephony applications are available. Some, such as CoolTalk andNetMeeting, come bundled with popular Web browsers. Others are stand-alone products. Internet telephony products are sometimes called IP telephony, V oice over the Internet (VOI) or V oice over IP (V oIP) products.V oIP is another Internet-based communications method which is growing in popularity. V oIP hardware and software work together to use the Internet to transmit telephone calls by sending voice data in packets using IP rather than by traditional circuit transmissions, called PSTN (Public Switched Telephone Network). The voice traffic is converted into data packets then routed over the Internet, or any IP network, just as normal data packets would be transmitted. When the data packets reach their destination, they are converted back to voice data again for the recipient. Your telephone is connected to a V oIP phone adapter (considered the hardware aspect). This adapter is connected to your broadband Internet connection. The call is routed through the Internet to a regular phone jack, which is connected to the receiver's phone. Special hardware (the phone adapter) is required only for the sender.Much like finding an Internet service provider (ISP) for your Internet connection, you will need to use a V oIP provider. Some service providers may offer plans that include free calls to other subscribers on their network and charge flat rates for other V oIP calls based on a fixed number of calling minutes. You most likely will pay additional fees when you call long distance using V oIP. While this sounds a lot like regular telephone service, it is less expensive than traditional voice communications, starting with the fact that you will no longer need to pay for extras on your monthly phone bill.E-mailShort for electronic mail, e-mail is the transmission of messages over communications networks. The messages can be notes entered from the keyboard or electronic files stored on disk. Most mainframes, minicomputers and computer networks have an e-mail system. Some e-mail systems are confined to a single computer system or network, but others have gateways to other computer systems, enabling you to send electronic mail anywhere in the world.Using an e-mail client (software such as Microsoft Outlook or Eudora), you can compose an e-mail message and send it to another person anywhere, as long as you know the recipient e-mail address. All online services and Internet Service Providers (ISPs) offer e-mail, and support gateways so that you can exchange e-mail with users of other systems. Usually, it takes only a few seconds for an e-mail to arrive at its destination. This is a particularly effective way to communicate with a group because you can broadcast a message or document to everyone in the group at once.One of the biggest black clouds hanging over e-mail is spam. Though definitions vary, spam can be considered any electronic junk mail (generally e-mail advertising for some product) that is sent out to thousands, if not millions, of people. Often spam perpetrates the spread of e-mail Trojans and viruses. For this reason, it's important to use an updated anti-virus program, which will scan your incoming and outgoing e-mail for viruses.For more information on e-mail, see "Deciphering Internet E-mail", a WebopediaQuick Reference.IRCShort for Internet Relay Chat, IRC is a multi-user chat system that allows to people gather on "channels" or "rooms" to talk in groups or privately. IRC is based on a client/server model. That is, to join an IRC discussion, you need an IRC client (such a mIRC) and Internet access. The IRC client is a program that runs on your computer and sends and receives messages to and from an IRC server. The IRC server, in turn, is responsible for making sure that all messages are broadcast to everyone participating in a discussion. There can be many discussions going on at once and each one is assigned a unique channel. Once you have joined an IRC chat room (chatroom discussions are designated by topics), you can type your messages in the public chatroom where all participants will see it, or you can send a private message to a single participant. With many IRC clients you can easily create your own chatroom and invite others to join your channel. You can also password protect your chatroom to allow for a more private discussion with just people whom you invite. Once you become familiar with your IRC client you'll find many options available to help you moderate and take part in a channel. One problem commonly associated with IRC is lag. IRC relies on the connections between the servers, and the connections or the servers can slow down. If you're in a discussion and people do not respond, or you notice that people are responding to things you types several minutes ago, then you can attribute this to lag. If you continue to experience lag, you can try connecting to the IRC network on a different server.VideoconferencingVideoconferencing is a conference between two or more participants at different sites by using computer networks to transmit audio and video data. Each participant has a video camera, microphone and speakers connected on his or her computer. As the two participants speak to one another, their voices are carried over the network and delivered to the other's speakers, and whatever images appear in front of the video camera appear in a window on the other participant's monitor.In order for videoconferencing to work, the conference participants must use the same client or compatible software. Many freeware and shareware videoconferencing tools are available online for download, and most Web cameras also come bundled with videoconferencing software. Many newer videoconferencing packages can also be integrated with public IM clients for multipoint conferencing and collaboration.In recent years, videoconferencing has become a popular form of distance communication in classrooms, allowing for a cost efficient way to provide distance learning, guest speakers, and multi-school collaboration projects. Many feel that videoconferencing provides a visual connection and interaction that cannot be achieved with standard IM or e-mail communications.SMS & Wireless CommunicationsShort message service (SMS) is a global wireless service that enables the transmissionof alphanumeric messages between mobile subscribers and external systems such as e-mail, paging and voice-mail systems. Messages can be no longer than 160 alpha-numeric characters and must contain no images or graphics. Once a message is sent, it is received by a Short Message Service Center (SMSC), which must then get it to the appropriate mobile device or system. As wireless services evolved, Multimedia Messaging Service (MMS) was introduced and provided a way to send messages comprising a combination of text, sounds, images and video to MMS capable handsets.Communication on wireless devices such as mobile phones and PDAs is frequently changing. Today you can use your wireless device to not only make phone calls, but to send and receive e-mail and IM. While you can use e-mail, IRC or IM for free if you have an Internet account, you will end up paying fees to you mobile carrier to use these services on a wireless device.网络通讯如果你使用互联网,那么你可能通过因特网与家人朋友或同事通讯联系.网上提供多种沟通方式,如向一位朋友送即时讯息,或发送电子邮件给同事,拨打网络电话,召开视频会议.基于因特网通信优点有很多. 如果你是已付费的网络用户(或者是您的雇主),你就可以利用网络发送即时讯息或者使用网络电话代替标准本地电话服务. 当然,任何技术都是有负面的.基于因特网内的通讯.上有很多沟通,如病毒、垃圾邮件、隐私问题.像所有的技术(特别是因特网技术系)都是在不断演变才使得我们能网上沟通. 这篇文章中我们会介绍一些最流行的基于因特网的通信.即时信息增长最快的网络通讯方式莫过于即时信息,简称IM. IM的思想是基于两台或多台计算机之间的文本传输.通过因特网,IM通讯服务器就能够为你建造一个个性化的私人聊天室,你可以在个人列表中选择他人与你进行实时对话.通常,IM 系统允许你随时与你的联系列表中的某个朋友在线联络.你也可以新加入其它朋友一起,进行多人交谈.IM如此受欢迎的其中一个原因是它本身的实时性.不同于电子邮件,你只能等待接收他或她的电子邮件查阅后并回复.如果一个人要与你在线联系,就必须获得你的IM联系名,你的上线消息就会立即出现在他们的屏幕上的一个窗口中.当千百万网民利用IM与家人和朋友联系的同时,在商业领域也同样成为新宠.在公司中,当员工需要立即与其它办公室的主管或同事索取信息资料时,就无需拨打本地电话了.总而言之,IM既可以为员工节省时间,又有助于降低商务间的通讯开支.关键词在于理解基于因特网的通信.会话发起协议SIP是会话发起协议的简称,或者会话启动协议,是一个应用层控制协议;也是一项互联网技术的信令协议. SIP能创建特色会话,如音频/视频会议、互动游戏、以及部署在IP网络的呼叫转移. 安全规格,使用户能够通过即时信息接入设备.无线应用协议WAP是无线应用协议的简称,是一项准许用户通过无线手持设备获取即时信息的安全规格说明书 ,如用手持无线移动电话、寻呼机、收发两用无线电设备、智能电话与他人沟通.更多基于因特网的通信术语如下:e-mail电子邮件instant messaging即时消息VoIP 网络电话VoWiFi 无限网络电话Internet fax网络传真mobile IP IP电话IP address IP地址不同的IM客户端的特点和优势也不近相同,但基本功能还是大体相近. 大众普遍使用的IM包括ICQ 、AOL的即时通、MSN、雅虎通. 而商业和企业则使用一种更为安全的企业级的即时通讯包,如微软05版生活沟通服务器,IBM莲花即时通. 第三方软件使得商人在工作场合使用大众IM时更为安全有效.伴随IM而来的还有恶意垃圾电子邮件和病毒的繁殖等矛盾性问题. Spim 的意思是即时通讯中的垃圾邮件,更确切说,它是即时讯息成果中永久的蠕虫,它冒充真实的人类使用昵称向用户发送带病毒的即时讯息.恶意垃圾邮件通常包含一个链接网址,它为撰写垃圾邮件者建造了市场.对于即时讯息本身, 恶意垃圾邮件比垃圾邮件更具侵害性. 这些广告和垃圾信息在你的即时通讯工具窗口弹出,你需要立即处理这些信息,通常你都要先过滤掉大量垃圾邮件后再去处理那些你的电子邮件.另外,木马病毒可以通过即时讯息的渠道传播.这些恶意程式的散布通常是当一个即时讯息用户接收一条需要点击一个网址的信息时,就会下载恶意代码. 这个信息将会出现在一个已知的即时通讯中, 这就是为什么更多的接收者如此相似的去点击超级链接并下载文件的原因.利用聊天安全规则(如没点击链接),并保持最新的反病毒程序,将会有帮助于你的系统减少感染机会,并通过即时讯息传染恶意程式.互联网电话及网络电话互联网电话由硬件和软件结合组成,让能够用互联网作为传输介质进行电话呼叫. 用户可以免费或者只需要支付固定上网费用,通过网络电话软件本身所提供的免费电话就可呼叫世界上的任何用户. 这种使用计算机--计算机拨打网络电话的形式,只需要在你的计算机上配置一个麦克风,通过调制解调器,那么和你安装了相同网络电话软件的一方就能听到你透过麦克风向他传话的声音了.然而,这种网络电话的基本形式仍存在一定问题.这种方式相对于使用传统电话来说速度较慢,并且话音的质量也不能保证像付费电话那样清晰.某些网络电话程序是可以获得的,诸如cooltalk和NetMeeting,它们与当前流行的浏览器捆绑.另外的就都自成一体化产品. 互联网电话产品有时称为IP 电话、语音跨越在因特网(VOI)或IP语音产品(VoIP).VoIP是另一个越来越受欢迎基于互联网的通讯方式. VoIP的硬件和软件一起利用互联网进行电话交流,通过IP发送语音数据包,而非传统的电路传输. 称为PSTN(大众网络电话首选).语音转换成数据包然后路由在互联网,或者一些IP 网络,如同正常的数据包一样被传送. 当数据包抵达目的地后,它们又把接收者语音数据返回.您的电话是连接在VoIP电话适配器上(硬件组成方面).这个适配器是让你通过连接宽频上网. 电话是经由当地电话网上定期杰克,连接接收机的电话.就像为你连接网络寻找一个因特网服务供应商(ISP),你需要一个网络电话的供应商. 一些服务供应商推出了各种方案,可能包括提供免费呼叫某些单位的网络, 或者收取基于网络电话拨打固定电话呼叫时间的收费比率.当你使用的VoIP拨打长途电话时,最可能将为此付出额外的费用.尽管听起来不完全和普通电话一样,但它比传统的语音通讯要便宜的多,从此你不再需要在你每月电话单中支付额外费用.电子邮件E-Mail是电子邮件简称,它是通过网络来传递文本信息的.信息可以来自于键盘敲入或储存在磁盘中的电子文档. 很多巨型计算机,微型计算机都有电子邮件系统. 一些电子邮件系统是局限于单一的计算机系统或网络,但是有部分电脑系统等门户,让你在世界任何地方发送电子邮件.利用电子邮件客户端(如微软的Outlook或Eudora软件),你可以谱写一封电子邮件并发送到任何地方的人,只要你知道收件人的电子邮件地址. 所有在线服务和互联网服务供应商(ISPs)提供了电子邮件和支持网关,那么就可以用电子邮件与他们系统的用户交流. 通常,只需几秒钟电子邮件就能到达目的地. 这是一个特别有效的集体交流方式,让你可以一次性与集体每一位发送信息或文档.恶意垃圾邮件像一个巨大无比的黑云把电子邮件所笼罩.. 尽管定义多变,恶意垃圾邮件仍可以被认定为是上千封的电子垃圾信件(通常是一些产品广告), 如果没有数以万计的客户的话. 垃圾邮件照样常常被电子邮件木马、病毒所蔓延.为此,它的重要使用最新的反病毒程序,您将扫描收支电子邮件病毒. 因此,使用最新的反病毒程序尤为重要,它会扫描你发送和接收的电子邮件是否存在病毒.更多关于电子邮件信息,请见"互联网电子邮件破译",这是计算机与网络名词的在线查询字典的参考.因特网中继聊天IRC是因特网中继聊天的简称,IRC是多用户、多频道的群聊系统，许多用户可以在一个被称为“channel”或"房间"的地方就某一话题交谈或私谈.IRC是基于客户端/服务器端的模式.即参加室内讨论.你需要一个IRC的客户软件(如mIRC)和网络.IRC客户端程序运行在你的电脑与IRC服务器端做信息传递.而另一端也就是IRC服务器,它是负责确保所有信息传播给讨论组中的每一个成员.它可以让讨论者同时进行群聊,也可以彼此单独开设了通道.一旦加入一个IRC 聊天室(聊天室讨论主题由对话者决定),你可以在某个公共聊天室的公开讨论并让所有成员看到你信息内容,另外你也可以发送私人讯息给某个参与者.有了IRC 客户端你可以轻易创造自己的聊天室并邀请他人加入你的频道.在你想进行更私人对话时.也可以使用密码保护的方式,只允许你所邀请的人进入聊天室.一旦你熟悉了IRC的顾客,你就会在渠道里找到一些愿意参与并帮助你解决问题的人.与IRC伴随的一个普遍问题是滞后. IRC依赖于彼此相连的主机导致速度变慢.如果你所在的讨论组无人响应,或者你通知的那个人在几分钟以后才答复你,那么可以归结为这是滞后.如果你有多次滞后的经历,那么你可以尝试连接不同的IRC服务器.视频会议视像会议是由两个或多人在不同地点的与会者,利用电脑网络传送语音、录像资料的工具. 每位与会者都要将摄像头,麦克风和听筒与他/她的电脑连接.如果双方会议要给另一方知道,那么他们的声音将透过网络传到给另一个对话者,并且瞄准摄像头的画面也将会呈现在其它会议群的监视者.为了让工作视频会议有序,与会人员必须使用相同客户端或兼容的软件.许多免费软件和共享视频工具提供网上下载,绝大部分的在线影院都捆绑了视频会议的软件.一些新颖的视频会议将大众即时讯息客户端整合成套装,可以用作多方会议和项目.近年来,视频会议已成为一种流行的远程交流的教室,为远程学习,宾客讨论以及多媒体学校合作项目提供了高效的方式. 许多人都认为视频会议提供了一个标准即时信息软件或者电子邮件所不能完成的可视化互动连接.短讯及无线通讯短信服务(SMS)是全球无线服务,使的移动用户与外部系统之间可以传递任何的字母数字信息,如系统电子邮件、传呼、语音邮件系统. 信息可以不再超过160字母数字字符、图象或图形必须包含无. 一旦讯息被发送,就会被对应的移动设备或系统的某个短信服务中心接收.作为无线服务的演变,多媒体信息服务(彩信MMS)被推广,它提供了多种传递讯息方式,包括文字、声音、以手机彩信和视频图象集于一体的能力.无线通讯设备如移动电话、掌上电脑(PDA)等是时常革新的. 如今你所使用的无线设备并不仅限于电话呼叫,还可以收发电子邮件和即时信息. 如果你有一个因特网帐户,那么你使用的电子邮件、网络聊天室或即时讯息是免费的,不过,如果你用无线设备来完成服务,你仍需付费给你的移动运营商.。