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本科毕业论文外文翻译【范本模板】

本科毕业论文外文翻译【范本模板】

本科毕业论文外文翻译外文译文题目:不确定条件下生产线平衡:鲁棒优化模型和最优解解法学院:机械自动化专业:工业工程学号: 201003166045学生姓名: 宋倩指导教师:潘莉日期: 二○一四年五月Assembly line balancing under uncertainty: Robust optimization modelsand exact solution methodÖncü Hazır , Alexandre DolguiComputers &Industrial Engineering,2013,65:261–267不确定条件下生产线平衡:鲁棒优化模型和最优解解法安库·汉泽,亚历山大·多桂计算机与工业工程,2013,65:261–267摘要这项研究涉及在不确定条件下的生产线平衡,并提出两个鲁棒优化模型。

假设了不确定性区间运行的时间。

该方法提出了生成线设计方法,使其免受混乱的破坏。

基于分解的算法开发出来并与增强策略结合起来解决大规模优化实例.该算法的效率已被测试,实验结果也已经发表。

本文的理论贡献在于文中提出的模型和基于分解的精确算法的开发.另外,基于我们的算法设计出的基于不确定性整合的生产线的产出率会更高,因此也更具有实际意义。

此外,这是一个在装配线平衡问题上的开创性工作,并应该作为一个决策支持系统的基础。

关键字:装配线平衡;不确定性; 鲁棒优化;组合优化;精确算法1.简介装配线就是包括一系列在车间中进行连续操作的生产系统。

零部件依次向下移动直到完工。

它们通常被使用在高效地生产大量地标准件的工业行业之中。

在这方面,建模和解决生产线平衡问题也鉴于工业对于效率的追求变得日益重要。

生产线平衡处理的是分配作业到工作站来优化一些预定义的目标函数。

那些定义操作顺序的优先关系都是要被考虑的,同时也要对能力或基于成本的目标函数进行优化。

就生产(绍尔,1999)产品型号的数量来说,装配线可分为三类:单一模型(SALBP),混合模型(MALBP)和多模式(MMALBP)。

毕业论文外文翻译格式【范本模板】

毕业论文外文翻译格式【范本模板】

因为学校对毕业论文中的外文翻译并无规定,为统一起见,特做以下要求:1、每篇字数为1500字左右,共两篇;2、每篇由两部分组成:译文+原文.3 附件中是一篇范本,具体字号、字体已标注。

外文翻译(包含原文)(宋体四号加粗)外文翻译一(宋体四号加粗)作者:(宋体小四号加粗)Kim Mee Hyun Director, Policy Research & Development Team,Korean Film Council(小四号)出处:(宋体小四号加粗)Korean Cinema from Origins to Renaissance(P358~P340) 韩国电影的发展及前景(标题:宋体四号加粗)1996~现在数量上的增长(正文:宋体小四)在过去的十年间,韩国电影经历了难以置信的增长。

上个世纪60年代,韩国电影迅速崛起,然而很快便陷入停滞状态,直到90年代以后,韩国电影又重新进入繁盛时期。

在这个时期,韩国电影在数量上并没有大幅的增长,但多部电影的观影人数达到了上千万人次。

1996年,韩国本土电影的市场占有量只有23.1%。

但是到了1998年,市场占有量增长到35。

8%,到2001年更是达到了50%。

虽然从1996年开始,韩国电影一直处在不断上升的过程中,但是直到1999年姜帝圭导演的《生死谍变》的成功才诞生了韩国电影的又一个高峰。

虽然《生死谍变》创造了韩国电影史上的最高电影票房纪录,但是1999年以后最高票房纪录几乎每年都会被刷新。

当人们都在津津乐道所谓的“韩国大片”时,2000年朴赞郁导演的《共同警备区JSA》和2001年郭暻泽导演的《朋友》均成功刷新了韩国电影最高票房纪录.2003年康佑硕导演的《实尾岛》和2004年姜帝圭导演的又一部力作《太极旗飘扬》开创了观影人数上千万人次的时代。

姜帝圭和康佑硕导演在韩国电影票房史上扮演了十分重要的角色。

从1993年的《特警冤家》到2003年的《实尾岛》,康佑硕导演了多部成功的电影。

翻译格式模板

翻译格式模板

外文翻译(译文字数不少于2000字)齿叶夜睡莲对曼扎拉湖(尼罗河三角洲)周边栽培的水稻的生长及产量的化感作用*学生:×××指导老师:×××摘要:(黑体,小四)在埃及曼扎拉湖周边新开垦的与外界阻隔的湖田中,莲属侵入稻田是导致农作物破坏和谷粒产量下降的一个主要原因。

本研究针对齿叶夜睡莲对水稻的化感作用提出了深刻的见解(Oryza sativa cavr. Giza-177)。

莲根状茎的提取液对水稻种子萌发和幼苗的生长具有抑制作用。

抑制的程度主要是受提取液的类型和浓度的影响。

其中乙醇提取液和水提取液的抑制作用要比氯仿提取液的抑制作用强。

乙醇提取液中的酚醛含量显示了它的最大的抑制作用。

在一个目标作物(水稻)和它的近邻(莲)的盆载实验中,大米的干重和相对生长率受种子年龄和莲根状茎密度的影响,生长率随着莲密度的增大而降低。

对一个生长了莲和未生长莲的稻田中的数据处理证明了生长莲的稻田中水稻的叶面积指数和产量均降低。

通过气相色谱法或质谱分析法识别潜在的化感化合物显示了莲根状茎中存在化感化合物酚醛。

(宋体,小四)关键词:(黑体,小四)莲提取液,酚醛,萌发,幼苗,生长,叶面积指数,谷粒产量,水稻,埃及(宋体,小四)引言(大标题,黑体,四号)在过去的几十年里,尼罗河上大规模面积的湿地都因为各种各样的发展目的而被开垦。

曼扎拉湖的大部分面积也被开垦,并且倾向于当作农田使用。

因为高水位和水稻土,水稻是新开垦区域种植的主要农作物。

很多农田中都有记录大米的产量严重降低。

但是明显的全年的栽培大米和苜蓿并相互更替并不是导致大米产量严重降低的主要原因,其中还包括很多其它因素,但是它们的重要性*原文:Ahmad K. Hegazy, W. M.Amer, A. A. Khedr. Allelopathic effect of Nymphaea lotus L. on growth and yield of cultivated rice around Lake Manzala (Nile Delta). Hydrobiologia, 2001,464: 133–142.还没有完全理解;比如,差的排水系统和部分稻子的不可收割。

英文合同翻译证书模板

英文合同翻译证书模板

英文合同翻译证书模板I, [Name of Translator], certify that I have translated the following contract from [source language] to English.Title of Contract: [Title of Contract]Date of Translation: [Date of Translation]I affirm that I am proficient in both the source language and English, and that the translation provided is accurate to the best of my knowledge and abilities. I have translated the contract faithfully, preserving the original meaning and intent, while also ensuring that the language used is clear and professional.This translation has been completed in accordance with the standards of the translation industry and reflects the content and terms of the original contract to the best of my ability. Any discrepancies or errors in the translation are unintentional.I certify that I have not made any changes or alterations to the original text, and that the translation is an accurate representation of the source document. I have also taken care to ensure that the language used is appropriate for the context and subject matter of the contract.I declare that I am fully responsible for the accuracy and quality of this translation, and that I have not used any machine translation tools or software in the translation process. I have personally reviewed and proofread the translation to ensure that it meets the highest standards of quality and accuracy.I confirm that I am qualified and competent to provide this translation certificate, and that I have the necessary skills and expertise to accurately translate legal documents such as contracts. I have also undertaken the necessary research and background checks to ensure the accuracy and reliability of the translation.I am confident that this translation will be of use and benefit to all parties involved, and that it will facilitate clear communication and understanding of the terms and conditions outlined in the contract.Signed: [Name of Translator]Date: [Date of Signing]Place: [Location of Signing]。

水产养殖系统外文翻译【范本模板】

水产养殖系统外文翻译【范本模板】

《Application of an expert system to monitoring and control in aquaculture》外文翻译专家系统在水产养殖监测和控制方面中的应用David D。

Harris,Feng Zhang,Peter H。

Sydenham摘要当任何测量任务接近于所需要的学科观点时,我们发现,这个学科通常包含一系列的数据,而且这个学科被解释为一整套的控制语言。

现在的应用程序中,测量和控制水质是鱼健康育种的基础。

这也是之前所说控制的基础,实时提供测量数据,对于确保鱼的健康来说是很重要的在。

计算机把简化专家系统的应用作为基础控制,以此来进行实时监控和控制。

这篇文章论述了计算机的基础发展、分布式监测和建立专家控制系统。

该系统集成了启发式和实时变化的知识,增强了自动决策的基础。

该系统一个重要的特佂是,仅仅使用简单的计算机技能,直接通过访问专家系统的创建者, 就能改变系统的应用程序和操作规程。

并允许陌生的用户,通过构建“传感器知识”来简化传感器的设计和操作,或指定所需的传感器,并通过系统提供的要求来建立它们。

测量和仪表系统中心(MISC)是一个澳大利亚南部大学的研究中心,它的目标是发展更好的测量方法和设备.所有项目的基础方法就是运用。

最近,这个研究中心正与澳大利亚南部的渔业部门开展一个项目,这个项目将把这方面的专业知识与特定应用程序应用到水产养殖的监测和控制当中.关键词专家系统、监测和控制、知识库、用户交互1 背景为了体现该地区一套以知识为基础的方法论,有必要开发一个基本的应用程序。

2 当前的水产养殖实践从海洋网箱到陆地上的池塘,世界各地普遍存在水产养殖.无论淡水或海洋鱼类都是养殖的对象,包括鳍鱼、甲壳类和软体动物等.然而一些常见的问题出现在这一课题中:•通常水产养殖设施的成本很高。

•水产养殖的可行性操作依赖于劳动力和运营成本。

•因为典型工业过程的差异和水产养殖情况,传统工业过程的方法和控制工程并不能简单的应用,•对鱼的生理和行为的了解,尤其是在集约农业的情况下,通常是有限的、局部的。

外文翻译模板

外文翻译模板

半鞅最大不等式和强大数定律(4号黑体加粗.居中)(5号 空一行)Tasos C.Christofides (Times New Roman5号,居中)(5号 空一行)摘要:Newman 和Wright(Z.Wahrsch.V erw.Geb.59(1982)361-371)首次将Chow 最大不等式从(局部)鞅的情况推广到半(局部)鞅的情况。

这个结论可以作为证明其他不等式如Hajek-Renyi 不等式和Doob 最大不等式的“资源”的不等式,并且由此得出了强大数定律。

数学期望值为零的联合随机变量的部分和是半鞅。

因此,最大不等式和强大数定律在情况被运用联合随机变量中有特殊的运用。

关键词:半鞅;联合随机变量1.前言定义1.1 设1S ,2S , 是1L 上的随机变量数列。

假设当1,2,j = 时,有11{()(,,)}0j j j E S S f S S +-≥ (1.1)对于所有并列方式且单调不减的函数f 它们的数学期望是可以定义的。

于是,称数列1{}j j S ≥为半鞅。

在此基础上,如果函数f 是非负的,那么数列1{}j j S ≥称为半局部鞅。

备注:如果函数f 不要求是单调不减的那么满足(1.1)的条件与是满足1{}j j S ≥是σ数域上的鞅的条件是等价的。

类似地,如果假定f 是非负的且不一定是单调不减的,那么满足(1.1)的条件与满足1{}j j S ≥是局部鞅的条件是等价的。

定义1.1应归功于Newman 和Wright(1982)。

在以前的备注中指出过半鞅和鞅之间的联系,该联系提出了这样的一个问题:某些结论尤其是最大不等式在鞅中是有效的,那么在半鞅中是否仍然有效。

Newman 和Wright (1982)已经推广了变量的结论,结论中包括将Doob 最大不等式和Doob 递增不等式推广到半鞅的情况。

与半鞅的概念相应的是绝对依赖的概念。

最后,我们得到下面的定义。

定义1.2 有限个随机变量是联合变量如果11{(,,),(,,)}0m m C ov f X X g X X ≥对于在m R 上任意两个并列方式且单调不减函数f ,g 而言,协方差被定义。

机器人自动寻迹控制系统-外文翻译【范本模板】

机器人自动寻迹控制系统-外文翻译【范本模板】

南京理工大学毕业设计(论文)外文资料翻译学院(系):机械工程学院专业:机械工程及其自动化姓名:陆建学号:0701500122外文出处:IEEE/IEE Electronic(用外文写)library(IEL)附件:1。

外文资料翻译译文;2.外文原文。

注:请将该封面与附件装订成册。

附件1:外文资料翻译译文导电胶粘剂机器人—一种新型,健壮,电力可控制附着技术的爬墙机器人Harsha Prahlad, Ron Pelrine,Scott Stanford,John Marlow, and Roy Kornbluh摘要本文介绍了一种新型夹紧称为兼容电胶合技术,同时也是第一次将这种技术应用于爬墙机器人.正如其名称所示电胶合是一种电气控制粘连技术,它涉及到采用电源连接到适合机器人移动的顺滑板来诱导墙体表面的静电荷。

立足于移动机人,夹紧力高(1平方厘米的夹紧表面承受0.2-1.4牛顿的力,力的具体大小取决于基板)已经在各种各样的常见的建筑基质中得到证实,无论是在粗糙还是光滑抑或是导电体还是绝缘体中都得到证实,与传统的粘合剂或干燥粘合剂不同,它可以为了符合流动性或配合清洗而被调制或关掉,该技术利用数量非常小的力量(大约20微瓦/牛顿的承受力量)并且展示了能重复地夹在有大量灰尘或其他杂物覆盖在基板的墙中的能力,通过使用这项技术,国际斯坦福研究所展示了各种各样的爬墙机器人包括跟踪和腿机器人。

I 引言最近的事件,诸如自然灾害,军事行动,或公众安全的威胁,强大的侦察机器人已经得到越来越多的重视,而能在三维空间里穿越地形复杂的城市的机器人更加受到重视。

创新地机器人具有良好的净空能力,通常使用很多模式的移动,如轮式或跟踪运动,腿运动,跳跃运动的机器人。

然而,它的攀爬或者停在垂直的表面建筑物及其他设施的能力,对其在军事用途提供了独特的应用空间.如城市侦察,传感器部署,建立城市网络节点,以及在民事搜索和救援行动.其垂直机动性和在高处栖息方面的能力也有众多的商业应用,如管道和槽罐检查或访问够不着的场合,如窗口区域清洁。

本科毕业设计外文文献翻译

本科毕业设计外文文献翻译

(Shear wall st ructural design ofh igh-lev el fr ameworkWu Jiche ngAbstract : In t his pape r the basic c oncepts of man pow er from th e fra me sh ear w all str uc ture, analy sis of the struct ur al des ign of th e c ont ent of t he fr ame she ar wall, in cludi ng the seism ic wa ll she ar spa本科毕业设计外文文献翻译学校代码: 10128学 号:题 目:Shear wall structural design of high-level framework 学生姓名: 学 院:土木工程学院 系 别:建筑工程系 专 业:土木工程专业(建筑工程方向) 班 级:土木08-(5)班 指导教师: (副教授)nratiodesign, and a concretestructure in themost co mmonly usedframe shear wallstructurethedesign of p oints to note.Keywords: concrete; frameshearwall structure;high-risebuildingsThe wall is amodern high-rise buildings is an impo rtant buildingcontent, the size of theframe shear wall must comply with building regulations. The principle is that the largersizebut the thicknessmust besmaller geometric featuresshouldbe presented to the plate,the force is close to cylindrical.The wall shear wa ll structure is a flatcomponent. Itsexposure to the force along the plane level of therole ofshear and moment, must also take intoaccountthe vertical pressure.Operate under thecombined action ofbending moments and axial force andshear forcebythe cantilever deep beam under the action of the force levelto loo kinto the bottom mounted on the basis of. Shearwall isdividedinto a whole walland theassociated shear wall in theactual project,a wholewallfor exampl e, such as generalhousingconstruction in the gableor fish bone structure filmwalls and small openingswall.Coupled Shear walls are connected bythecoupling beam shear wall.Butbecause thegeneralcoupling beamstiffness is less thanthe wall stiffnessof the limbs,so. Walllimb aloneis obvious.The central beam of theinflection pointtopay attentionto thewall pressure than the limits of the limb axis. Will forma shortwide beams,widecolumn wall limbshear wall openings toolarge component atbothen ds with just the domain of variable cross-section ro din the internalforcesunder theactionof many Walllimb inflection point Therefore, the calcula tions and construction shouldAccordingtoapproximate the framestructure to consider.The designof shear walls shouldbe based on the characteristics of avariety ofwall itself,and differentmechanical ch aracteristicsand requirements,wall oftheinternalforcedistribution and failuremodes of specific and comprehensive consideration of the design reinforcement and structural measures. Frame shear wall structure design is to consider the structure of the overall analysis for both directionsofthehorizontal and verticaleffects. Obtain theinternal force is required in accordancewiththe bias or partial pull normal section forcecalculation.The wall structure oftheframe shear wall structural design of the content frame high-rise buildings, in the actual projectintheuse of themost seismic walls have sufficient quantitiesto meet thelimitsof the layer displacement, the location isrelatively flexible. Seismic wall for continuous layout,full-length through.Should bedesigned to avoid the wall mutations in limb length and alignment is notupand down the hole. The sametime.The inside of the hole marginscolumnshould not belessthan300mm inordertoguaranteethelengthof the column as the edgeof the component and constraint edgecomponents.Thebi-direc tional lateral force resisting structural form of vertical andhorizontalwallconnected.Each other as the affinityof the shear wall. For one, two seismic frame she ar walls,even beam highratio should notgreaterthan 5 and a height of not less than400mm.Midline columnand beams,wall midline shouldnotbe greater tha nthe columnwidthof1/4,in order toreduce thetorsional effect of the seismicaction onthecolumn.Otherwisecan be taken tostrengthen thestirrupratio inthe column tomake up.If theshear wall shearspan thanthe big two. Eventhe beamcro ss-height ratiogreaterthan 2.5, then the design pressure of thecut shouldnotmakeabig 0.2. However, if the shearwallshear spanratioof less than two couplingbeams span of less than 2.5, then the shear compres sion ratiois notgreater than 0.15. Theother hand,the bottom ofthe frame shear wallstructure to enhance thedesign should notbe less than200mmand notlessthanstorey 1/16,otherpartsshouldnot be less than 160mm and not less thanstorey 1/20. Aroundthe wall of the frame shear wall structure shouldbe set to the beam or dark beamand the side columntoform a border. Horizontal distributionofshear walls can from the shear effect,this design when building higher longeror framestructure reinforcement should be appropriatelyincreased, especially in the sensitiveparts of the beam position or temperature, stiffnesschange is bestappropriately increased, thenconsideration shouldbe givento the wallverticalreinforcement,because it is mainly from the bending effect, andtake in some multi-storeyshearwall structurereinforcedreinforcement rate -likelessconstrained edgeofthecomponent or components reinforcement of theedge component.References: [1 sad Hayashi,He Yaming. On the shortshear wall high-rise buildingdesign [J].Keyuan, 2008, (O2).高层框架剪力墙结构设计吴继成摘要: 本文从框架剪力墙结构设计的基本概念人手, 分析了框架剪力墙的构造设计内容, 包括抗震墙、剪跨比等的设计, 并出混凝土结构中最常用的框架剪力墙结构设计的注意要点。

外文文献翻译译稿和原文【范本模板】

外文文献翻译译稿和原文【范本模板】

外文文献翻译译稿1卡尔曼滤波的一个典型实例是从一组有限的,包含噪声的,通过对物体位置的观察序列(可能有偏差)预测出物体的位置的坐标及速度。

在很多工程应用(如雷达、计算机视觉)中都可以找到它的身影。

同时,卡尔曼滤波也是控制理论以及控制系统工程中的一个重要课题。

例如,对于雷达来说,人们感兴趣的是其能够跟踪目标.但目标的位置、速度、加速度的测量值往往在任何时候都有噪声。

卡尔曼滤波利用目标的动态信息,设法去掉噪声的影响,得到一个关于目标位置的好的估计.这个估计可以是对当前目标位置的估计(滤波),也可以是对于将来位置的估计(预测),也可以是对过去位置的估计(插值或平滑).命名[编辑]这种滤波方法以它的发明者鲁道夫。

E。

卡尔曼(Rudolph E. Kalman)命名,但是根据文献可知实际上Peter Swerling在更早之前就提出了一种类似的算法。

斯坦利。

施密特(Stanley Schmidt)首次实现了卡尔曼滤波器。

卡尔曼在NASA埃姆斯研究中心访问时,发现他的方法对于解决阿波罗计划的轨道预测很有用,后来阿波罗飞船的导航电脑便使用了这种滤波器。

关于这种滤波器的论文由Swerling(1958)、Kalman (1960)与Kalman and Bucy(1961)发表。

目前,卡尔曼滤波已经有很多不同的实现.卡尔曼最初提出的形式现在一般称为简单卡尔曼滤波器。

除此以外,还有施密特扩展滤波器、信息滤波器以及很多Bierman, Thornton开发的平方根滤波器的变种.也许最常见的卡尔曼滤波器是锁相环,它在收音机、计算机和几乎任何视频或通讯设备中广泛存在。

以下的讨论需要线性代数以及概率论的一般知识。

卡尔曼滤波建立在线性代数和隐马尔可夫模型(hidden Markov model)上.其基本动态系统可以用一个马尔可夫链表示,该马尔可夫链建立在一个被高斯噪声(即正态分布的噪声)干扰的线性算子上的。

系统的状态可以用一个元素为实数的向量表示.随着离散时间的每一个增加,这个线性算子就会作用在当前状态上,产生一个新的状态,并也会带入一些噪声,同时系统的一些已知的控制器的控制信息也会被加入。

毕业设计(论文)外文资料翻译【范本模板】

毕业设计(论文)外文资料翻译【范本模板】

南京理工大学紫金学院毕业设计(论文)外文资料翻译系:机械系专业:车辆工程专业姓名:宋磊春学号:070102234外文出处:EDU_E_CAT_VBA_FF_V5R9(用外文写)附件:1。

外文资料翻译译文;2.外文原文.附件1:外文资料翻译译文CATIA V5 的自动化CATIA V5的自动化和脚本:在NT 和Unix上:脚本允许你用宏指令以非常简单的方式计划CATIA。

CATIA 使用在MS –VBScript中(V5.x中在NT和UNIX3。

0 )的共用部分来使得在两个平台上运行相同的宏。

在NT 平台上:自动化允许CATIA像Word/Excel或者Visual Basic程序那样与其他外用分享目标。

ATIA 能使用Word/Excel对象就像Word/Excel能使用CATIA 对象。

在Unix 平台上:CATIA将来的版本将允许从Java分享它的对象。

这将提供在Unix 和NT 之间的一个完美兼容。

CATIA V5 自动化:介绍(仅限NT)自动化允许在几个进程之间的联系:CATIA V5 在NT 上:接口COM:Visual Basic 脚本(对宏来说),Visual Basic 为应用(适合前:Word/Excel ),Visual Basic。

COM(零部件目标模型)是“微软“标准于几个应用程序之间的共享对象。

Automation 是一种“微软“技术,它使用一种解释环境中的COM对象。

ActiveX 组成部分是“微软“标准于几个应用程序之间的共享对象,即使在解释环境里。

OLE(对象的链接与嵌入)意思是资料可以在一个其他应用OLE的资料里连结并且可以被编辑的方法(在适当的位置编辑).在VBScript,VBA和Visual Basic之间的差别:Visual Basic(VB)是全部的版本。

它能产生独立的计划,它也能建立ActiveX 和服务器。

它可以被编辑。

VB中提供了一个补充文件名为“在线丛书“(VB的5。

工程力学外文翻译范文工程力学英文什么说

工程力学外文翻译范文工程力学英文什么说

工程力学外文翻译范文工程力学英文什么说工程力学,英文是:engineering mechanics。

例句:并基于工程力学对充填体强度及其安全性进行了分析研究。

An analysis study was conducted on the strength and safety of the backfill materialbased on the engineering mechanics.详细解释:engineering英[?end???n??r??] 美[?end???n?r??]n. 工程(学),工程师行业; 操纵,管理; 土木工程,工事; 开车技术;[例句]He has not studied mechanics or engineering.他没有学习过力学和工程学。

mechanics 英[m?'k?n?ks] 美[m??k?n?ks]n. 力学; 机械学; 构成法; 技术;[例句]He has not studied mechanics or engineering.他没有学习过力学和工程学。

机械学院工程力学专业的英文是Engineering Mechanics major in Mechanical Engineering。

工程力学专业本专业培养具备力学基础理论知识、计算和试验能力,能在各种工程(如机械、土建、材料、能源、交通、航空、船舶、水利、化工等)中从事与力学有关的科研、技术开发、工程设计和力学教学工作的高级工程科学技术人才。

本专业主要学习力学、数学基本理论和知识,受到必要的工程技能训练,具有应用计算机和现代实验技术手段解决与力学有关的工程问题的基本能力。

《工程力学》是土木工程专业主要的技术基础课,而且也是学生公认的一门比较难学的课程。

该课程不但要求学生能正确理解基本概念,而且要求学生要学会用所学内容求解各种工程和生活中的各种力学问题。

所以该课程要求学生具有较好的高等数学基础。

毕业设计外文文献翻译【范本模板】

毕业设计外文文献翻译【范本模板】

毕业设计(论文)外文资料翻译系别:专业:班级:姓名:学号:外文出处:附件: 1. 原文; 2。

译文2013年03月附件一:A Rapidly Deployable Manipulator SystemChristiaan J。

J。

Paredis, H. Benjamin Brown,Pradeep K. KhoslaAbstract:A rapidly deployable manipulator system combines the flexibility of reconfigurable modular hardware with modular programming tools,allowing the user to rapidly create a manipulator which is custom-tailored for a given task. This article describes two main aspects of such a system,namely,the Reconfigurable Modular Manipulator System (RMMS)hardware and the corresponding control software。

1 IntroductionRobot manipulators can be easily reprogrammed to perform different tasks, yet the range of tasks that can be performed by a manipulator is limited by mechanicalstructure。

Forexample,a manipulator well-suited for precise movement across the top of a table would probably no be capable of lifting heavy objects in the vertical direction. Therefore,to perform a given task,one needs to choose a manipulator with an appropriate mechanical structure.We propose the concept of a rapidly deployable manipulator system to address the above mentioned shortcomings of fixed configuration manipulators。

外文翻译与文献综述模板格式以及要求说明

外文翻译与文献综述模板格式以及要求说明

杭州电子科技大学信息工程学院毕业论文外文文献翻译要求根据《普通高等学校本科毕业设计(论文)指导》的内容,特对外文文献翻译提出以下要求:一、翻译的外文文献可以是一篇,也可以是两篇,但总字符要求不少于1.5万(或翻译成中文后至少在3000字以上)。

二、翻译的外文文献应主要选自学术期刊、学术会议的文章、有关著作及其他相关材料,应与毕业论文(设计)主题相关,并作为外文参考文献列入毕业论文(设计)的参考文献。

并在每篇中文译文首页用“脚注”形式注明原文作者及出处,中文译文后应附外文原文。

三、中文译文的基本撰写格式为:1.题目:采用小三号、黑体字、居中打印;2.正文:采用小四号、宋体字,行间距一般为固定值20磅,标准字符间距。

页边距为左3cm,右2.5cm,上下各2.5cm,页面统一采用A4纸。

四、封面格式由学校统一制作(注:封面上的“翻译题目”指中文译文的题目),并按“封面、译文一、外文原文一、译文二、外文原文二、考核表”的顺序统一装订。

五、忌自行更改表格样式。

毕业论文外文文献翻译毕业设计(论文)题目Xxx翻译(1)题目指翻译后的中文译文的题目翻译(2)题目指翻译后的中文译文的题目系会计系以本模板为准)专业XXXXXX(以本模板为准)姓名XXXXXX(以本模板为准)班级XXXXXX(以本模板为准)学号XXXXXX(以本模板为准)指导教师XXXXXX(以本模板为准)正文3杭州电子科技大学信息工程学院本科毕业论文文献综述的写作要求为了促使学生熟悉更多的专业文献资料,进一步强化学生搜集文献资料的能力,提高对文献资料的归纳、分析、综合运用能力及独立开展科研活动的能力,现对本科学生的毕业设计(论文)提出文献综述的写作要求,具体要求如下:一、文献综述的概念文献综述是针对某一研究领域或专题搜集大量文献资料的基础上,就国内外在该领域或专题的主要研究成果、最新进展、研究动态、前沿问题等进行综合分析而写成的、能比较全面地反映相关领域或专题历史背景、前人工作、争论焦点、研究现状和发展前景等内容的综述性文章。

外文文献翻译(最终版)【范本模板】

外文文献翻译(最终版)【范本模板】

造纸机的烘缸摘要:本篇阐述的是有关的造纸机的干燥烘缸。

烘缸是中空的,烘缸的缸体内表面沿长度方向有沟槽。

大多数的集水器沿管道轴向延伸套管。

吸水管的设计是从每个集水器到一个总槽对于由此吸入的冷凝水。

一个虹吸管被连接到每个集水器收集的冷凝水。

虹吸管道是绝缘,以降低内部和外部的温度差异。

虹吸管有固定的形状和间隔以至于虹吸管从凹槽中能尽可能从除掉大量凝结水,与凹槽附近的虹吸管道相比,剩下的套管长度要达到更均匀套管,为了达到更均匀的干燥性能,烘缸的缸体在宽度方向有网格。

例如,虹吸管的吸入管道附近可能有一个更大的直径或可能会有一个更强的负压式凝聚力在管道附近地区。

关键词:烘缸,设计,冷凝水,虹吸管1 造纸机的烘缸1。

1 烘缸的设计背景本发明涉及造纸机的烘干装置或其它类似的过道,更特别地,是指为了在宽度方向达到均匀烘干.烘缸包括一个套管在他的内表面有沟槽和在里面提供一个虹吸功能的,烘缸是从凹槽内吸取冷凝水的。

虹吸管的排列一般包括大量的元素.现在描述,冷凝水的收集在哪个点上的,也就是,在缸体的套管的周边内,提供了小型吸吮管道。

这些周边的凹槽的设计,冷凝水的集水器位于套管的里面,套管被连接到许多小的虹吸管用于接收由此产生的凝结水迷途。

冷凝水收集器是连接到虹吸管道,相反的,,一般来说,大幅度径向延长套管。

相反,导致弯管轴向延伸主要是凝结水的排水线.尽管造纸机有许多的改进,特别是在造纸机的干燥部分, 认为在它的宽度,已经有一系列的连续的问题,纸网是不均匀的潮湿(或不均匀的干燥)。

尤其在大的烘缸对于生产定量很轻的绉纸, 在整个烘缸的长度上,干燥的均匀度是决定性的纸的数量和质量。

干燥状况微小的不同都会对纸网的质量产生很不利的影响.在造纸设备上提高生产的纸质量和造纸设备的结合一直是现代研究首要考虑的.纸的剖面烘干的均匀度已经被努力反复研究。

本研究却很困难,因为有许多来源的扰动导致纸面的干燥不良。

以下可能性应注意,在纸的某个部位出现的水分能被在纸网的部分被拔出,这可能因此而被归因于造纸机的流浆箱的故障,例如,从箱体传送到唇板,在过程中出现问题,在湿部到网部出现问题,堵塞压力辊的抽吸孔,在喷淋管道出现问题,等等.更近一步说,在热风罩的操作也可能出现问题的,在一个压力辊的辊型设计故障可能导致干燥的不均匀。

毕业设计(论文)外文翻译-基于数据挖掘的直销电子商务平台会员奖励管理系统开发-洪维坤【范本模板】

毕业设计(论文)外文翻译-基于数据挖掘的直销电子商务平台会员奖励管理系统开发-洪维坤【范本模板】

毕业设计(论文)外文资料翻译系部:计算机科学与技术系专业:计算机科学与技术姓名:洪维坤学号: 0807012215外文出处:Proceeding of Workshop on the (用外文写)of Artificial,Hualien,TaiWan,2005 指导老师评语:签名:年月日不确定性数据挖掘:一种新的研究方向Michael Chau1, Reynold Cheng2, and Ben Kao31:商学院,香港大学,薄扶林,香港2:计算机系,香港理工大学九龙湖校区,香港3:计算机科学系,香港大学,薄扶林,香港摘要由于不精确测量、过时的来源或抽样误差等原因,数据不确定性常常出现在真实世界应用中。

目前,在数据库数据不确定性处理领域中,很多研究结果已经被发表。

我们认为,当不确定性数据被执行数据挖掘时,数据不确定性不得不被考虑在内,才能获得高质量的数据挖掘结果.我们称之为“不确定性数据挖掘”问题。

在本文中,我们为这个领域可能的研究方向提出一个框架.同时,我们以UK-means聚类算法为例来阐明传统K—means算法怎么被改进来处理数据挖掘中的数据不确定性。

1.引言由于测量不精确、抽样误差、过时数据来源或其他等原因,数据往往带有不确定性性质。

特别在需要与物理环境交互的应用中,如:移动定位服务[15]和传感器监测[3]。

例如:在追踪移动目标(如车辆或人)的情境中,数据库是不可能完全追踪到所有目标在所有瞬间的准确位置.因此,每个目标的位置的变化过程是伴有不确定性的。

为了提供准确地查询和挖掘结果,这些导致数据不确定性的多方面来源不得不被考虑。

在最近几年里,已有在数据库中不确定性数据管理方面的大量研究,如:数据库中不确定性的表现和不确定性数据查询。

然而,很少有研究成果能够解决不确定性数据挖掘的问题。

我们注意到,不确定性使数据值不再具有原子性。

对于使用传统数据挖掘技术,不确定性数据不得不被归纳为原子性数值。

外文翻译原文模板

外文翻译原文模板

1、外文资料翻译内容要求:外文资料的内容应为本学科研究领域,并与毕业设计(论文)选题相关的技术资料或专业文献,译文字数应不少于3000汉字以上,同时应在译文末注明原文的出处。

不可采用网络中直接有外文和原文的。

2、外文资料翻译格式要求:译文题目采用小二号黑体,居中;译文正文采用宋体小四号,段前、段后距为0行;行距:固定值20磅。

英文原文如果为打印的话用新罗马(Times New Roman)小四号字。

装订时原文在前,译文在后。

文章中有引用的地方在原文中也要体现。

参考文献也要翻译成中文!An Energy-Efficient Cooperative Algorithm for Data Estimation inWireless Sensor NetworksAbstract – In Wireless Sensor Networks (WSN), nodes operate on batteries and network’s lifetime depends on energy consumption of the nodes. Consider the class of sensor networks where all nodes sense a single phenomenon at different locations and send messages to a Fusion Center (FC) in order to estimate the actual information. In classical systems all data processing tasks are done in the FC and there is no processing or compression before transmission. In the proposed algorithm, network is divided into clusters and data processing is done in two parts. The first part is performed in each cluster at the sensor nodes after local data sharing and the second part will be done at the Fusion Center after receiving all messages from clusters. Local data sharing results in more efficient data transmission in terms of number of bits. We also take advantage of having the same copy of data at all nodes of each cluster and suggest a virtual Multiple-Input Multiple-Output (V-MIMO) architecture for data transmission from clusters to the FC. A Virtual-MIMO network is a set of distributed nodes each having one antenna. By sharing their data among themselves, these nodes turn into a classical MIMO system. In the previously proposed cooperative/virtual MIMO architectures there has not been any data processing or compression in the conference phase. We modify the existing VMIMO algorithms to suit the specific class of sensor networks that is of our concern. We use orthogonal Space-Time Block Codes (STBC) for MIMO part and by simulation show that this algorithm saves considerable energy compared to classical systems.I. INTRODUCTIONA typical Wireless Sensor Network consists of a set of small, low-cost and energy-limited sensor nodes which are deployed in a field in order to observe a phenomenon and transmit it to a Fusion Center (FC). These sensors are deployed close to one another and their readings of the environment are highly correlated. Their objective is to report a descriptive behavior of the environment based on all measurements to the Fusion Center. This diversity in measurement lets the system become more reliable and robust against failure. In general, each node is equipped with a sensing device, a processor and a communication module (which can be either a transmitter or transmitter/receiver).Sensor nodes are equipped with batteries and are supposed to work for a long period of time without battery replacement. Thus, they are limited in energy and one of the most important issues in designing sensor networks will be the energy consumption of the sensor nodes. To deal with this problem, we might either reduce the number of bits to be transmitted by source compression or reduce the required power for transmission by applying advanced transmission techniques while satisfying certain performance requirement.A lot of research has been done in order to take advantage of the correlation among sensors’ data for reducing the number of bits to be transmitted. Some are based on distributed source coding[1]while others use decentralized estimation[2-5]. In [1], authors present an efficient algorithm that applies distributed compression based on Slepian – Wolf[14] encoding technique and use an adaptive signal processing algorithm to track correlation among sensors data. In [2-5] the problem of decentralized estimation in sensor networks has been studied under different constraints. In these algorithms, sensors perform a local quantization on their data considering that their observations are correlated with that of other sensors. They produce a binary message and send it to the FC. FC combines these messages based on the quantization rules used at the sensor nodes and estimates the unknown parameter. Optimal local quantization and final fusion rules are investigated in these works. The distribution of data assumed for sensor observation in these papers has Uniform probability distribution function. In our model we consider Gaussian distribution introduced in [17] for sensor measurements which ismore likely to reality.As an alternative approach, some works have been done using energy-efficient communication techniques such as cooperative/virtual Multiple-Input Multiple-Output (MIMO) transmission in sensor networks [6-11]. In these works, as each sensor is equipped with one antenna, nodes are able to form a virtual MIMO system by performing cooperation with others. In [6] the application of MIMO techniques in sensor networks based on Alamouti[15] space-time block codes was introduced. In [8,9] energy-efficiency of MIMO techniques has been explored analytically and in [7] a combination of distributed signal processing algorithm presented and in [1] cooperative MIMO was studied.In this paper, we consider both techniques of compression and cooperative transmission at the same time. We reduce energy consumption in two ways; 1) processing data in part at the transmitting side, which results in removing redundant information thus having fewer bits to be transmitted and 2) reducing required transmission energy by applying diversity and Space-Time coding. Both of these goals will be achieved by our proposed two-phase algorithm. In our model, the objective is to estimate the unknown parameter which is basically the average of all nodes’ measurements. That is, exact measurements of individual nodes are not important and it is not necessary to spend a lot of energy and bandwidth to transmit all measured data with high precision to the FC. We can move some part of data processing to the sensors side. This can be done by local data sharing among sensors. We divide the network into clusters of ‘m’ members. The number of members in the cluster (m) is both the compression factor in data processing and also the diversity order in virtual-MIMO architecture. The remaining of this paper is organized as following: in section II we introduce our system model and basic assumptions. In section III we propose our collaborative algorithm. In section IV we present the mathematical analysis of the proposed algorithm and in section V we give some numerical simulations. Finally section VI concludes the paper.II. SYSTEM MODELA. Network ModelThe network model that we use is similar to the one presented in [2-5].Our network consists of N distributed Sensor Nodes (SN) and a Fusion Center (FC). Sensors are deployed uniformly in the field, close to one another and each taking observations on an unknown parameter (θ). Fusion Center is located far from the nodes. All nodes observe same phenomenon but with different measurements. These nodes together with the Fusion Center are supposed to find the value of the unknown parameter. Nodes send binary messages to Fusion Center. FC will process the received messages and estimate the unknown value.B. Data ModelIn our formulation we use the data model introduced in[17]. We assume that all sensors observe the same phenomenon (θ) which has Gaussian distribution with variance σx 2. They observe different versions of θ and we model this difference as an additive zero mean Gaussian noisewith variance σn 2. Therefore, sensor observations will be described byn i i θx += (1) Where θ ~ N (0, σx 2) and n i ~ N (0, σn 2) for i = 1, 2, … , N .Based on thisassumption the value of θ can be estimated by taking the numerical average of the nodes observations, i.e.∑==N i i x N 11θ(2)C. Reference System ModelOur reference system consists of N conventional Single Input Single Output (SISO) wireless links, each connecting one of the sensor nodes to the FC. For the reference system we do not consider any communication or cooperation among the sensors. Therefore each sensor quantizes its observation by an L-bit scalar quantizer designed for distribution of θ, generates a message of length L and transmits it directly to the FC. Fusion Center receives all messages and performs the processing, which is calculation of the numerical average of these messages.III. COOPERATIVE DATA PROCESSING ALGORITHMSensor readings are analog quantities. Therefore, each sensor has to compress its data into several bits. For data compression we use L -bit scalar quantizer [12,13].In our algorithm, network is divided into clusters, each cluster having a fixed and pre-defined number of members (m). Members of each cluster are supposed to cooperate with one another in two ways:1. Share, Process and Compress their data2. Cooperatively transmit their processed data using virtual MIMO.IV. ANALYSISThe performance metric considered in our analysis is the total distortion due to compression and errors occurred during transmission. The first distortion is due to finite length quantizer, used in each sensor to represent the analog number by L bits. This distortion depends on the design of quantizer.We consider a Gaussian scalar quantizer which is designed over 105 randomly generated samples. The second distortion is due to errors occurred during transmission through the channel. In our system, this distortion is proportional to the probability of bit error. Since the probability of bit error (Pe) is a function of transmission energy per bit (Eb), total distortion will be a function of Eb. In this section we characterize the transmission and total consumed energy of sensors and find the relationship between distortion and probability of bit error.V. SIMULATION AND NUMERICAL RESULTS To give a numerical example, we assume m = 4 members in each cluster. Therefore our Virtual-MIMO scheme will consist of 4 transmit antennas. We assume that network has N = 32 sensors. Sensor observations are Gaussian with σx2= 1 and are added to a Gaussian noise of σn2= 0.1 .Nodes are deployed uniformly in the field and are 2 meters apart from each other and the Fusion Center is located 100 meters away from the center of the field. The values for circuit parameters are quoted from [6] and are listed in Table I. These parameters depend on the hardware design and technological advances. Fig. 1 illustrates the performance (Distortion) of reference system and proposed two-phase V-MIMO scheme versus transmission energy consumption in logarithmic scale. As shown in the figures, depending on how much precision is needed in the system, we can save energy by applying the proposed algorithm.TABLE IFig. 2 illustrates the Distortion versus total energy consumption of sensor nodes. That is, in this figure we consider both the transmission and circuit energy consumption. The parameters that lead us to these results may be designed to give better performance than presented here. However, from these figures we can conclude that the proposed algorithm outperforms the reference system when we want to have distortion less than 10−3 and it can save energy as high as 10 dB.VI. CONCLUSIONIn this paper we proposed a novel algorithm which takes advantage of cooperation among sensor nodes in two ways: it not only compresses the set of sensor messages at the sensor nodes into one message, appropriate for final estimation but also encodes them into orthogonal space-time symbols which are easy to decode and energy-efficient. This algorithm is able to save energy as high as 10 dB.REFERENCES[1] J.Chou,D.Petrovic and K.Ramchandran “A distributed and adaptive signalprocessing approach to reducing energy consumption in sensornetworks,”Proc. IEEE INFOCOM,March 2003.[2] Z.Q.Luo, “Universal decentralized estimation in a bandwidth constrainedsensor network,” IEEE rmation The ory, vol.51,no.6,June 2005.[3] Z.Q.Luo,“An Isotropic Universal decentralized estimation scheme for abandwidth constrained Ad Hoc sensor network,”IEEEm. vol.23,no. 4,April 2005.[4] Z.Q.Luo and J.-J. Xiao, “Decentralized estimation i n an inhomogeneoussensing environment,” IEEE Trans. Information Theory, vol.51, no.10,October 2005.[5] J.J.Xiao,S.Cui,Z.-Q.Luo and A.J.Goldsmith, “Joint estimation in sensornetworks under energy constraints,” Proc.IEEE First conference on Sensor and Ad Hoc Communications and Networks, (SECON 04),October 2004.[6] S.Cui, A.J.Goldsmith, and A.Bahai,“Energy-efficiency of MIMO andcooperative MIMO techniques in sensor networks,”IEEEm,vol.22, no.6pp.1089–1098,August 2004.[7] S.K.Jayawe era and M.L.Chebolu, “Virtual MIMO and distributed signalprocessing for sensor networks-An integrated approach”,Proc.IEEEInternational Conf. Comm.(ICC 05)May 2005.[8] S.K.Jayaweera,"Energy efficient virtual MIMO-based CooperativeCommunications for Wireless Sensor Networks",2nd International Conf. on Intelligent Sensing and Information Processing (ICISIP 05),January 2005.[9] S.K.Jayaweera,“Energy Analysis of MIMO Techniques in Wireless SensorNetworks”, 38th Annual Conference on Information Sciences and Systems (CISS 04),March 2004.[10] S.K.Jayaweera and M.L.Chebolu,“Virtual MIMO and Distributed SignalProcessing for Sensor Networks - An Integrated Approach”,IEEEInternational Conf.on Communications (ICC 05),May 2005.[11] S.K.Jayaweera,“An Energy-efficient Virtual MIMO CommunicationsArchitecture Based on V-BLAST Processing for Distributed WirelessSensor Networks”,1st IEEE International Conf.on Sensor and Ad-hocCommunications and Networks (SECON 2004), October 2004.[12] J.Max,“Quantizing for minimum distortion,” IRE rmationTheory,vol.IT-6, pp.7 – 12,March 1960.[13] S.P.Lloyd,“Least squares quantization in PCM ,”IEEE rmationTheory,vol.IT-28, pp.129-137,March 1982.[14] D.Slepian and J.K.Wolf “Noiseless encoding of correlated inf ormationsources,” IEEE Trans. on Information Theory,vol.19, pp.471-480,July1973.[15] S.M.Alamouti,“A simple transmit diversity technique for wirelesscommunications,” IEEE m., vol.16,no.8,pp.1451–1458,October 1998.[16] V.Tarokh,H.Jafarkhani,and A.R.Calderbank. “Space-time block codesfrom orthogonal designs,’’IEEE rmationTheory,vol.45,no.5,pp.1456 -1467,July 1999.[17] Y.Oohama,“The Rate-Distortion Function for the Quadratic GaussianCEO Problem,” IEEE Trans. Informatio nTheory,vol.44,pp.1057–1070,May 1998.。

翻译英文合同模板简单

翻译英文合同模板简单

翻译英文合同模板简单This Contract is entered into on the __________(date) day of __________(month), 20________, by and between:Party A: [Company Name], a [State] corporation with its principal office located at [Address], hereinafter referred to as "Party A", andParty B: [Name], an individual residing at [Address], hereinafter referred to as "Party B". Hereinafter referred to collectively as the "Parties".1. Scope of WorkParty A agrees to provide [specific goods or services] to Party B in accordance with the terms and conditions of this Contract.2. Payment TermsParty B agrees to pay Party A the sum of $_______ as consideration for the goods or services provided under this Contract. Payment shall be made in full upon the completion of the work.3. Term of ContractThis Contract shall commence on the date of signing and shall terminate upon the completion of the work, unless terminated earlier in accordance with the provisions of this Contract.4. TerminationEither Party may terminate this Contract with [number of days] days' written notice to the other Party. In the event of termination, Party B shall pay Party A for all goods or services provided up to the date of termination.5. Representations and WarrantiesParty A represents and warrants that it has the necessary skills, expertise, and resources to provide the goods or services as agreed upon in this Contract. Party B represents and warrants that it has the authority to enter into this Contract.6. ConfidentialityBoth Parties agree to keep confidential all information exchanged in connection with this Contract, including but not limited to pricing, business practices, and other proprietary information.7. Governing LawThis Contract shall be governed by and construed in accordance with the laws of the State of [State], without regard to conflicts of law principles.8. Entire AgreementThis Contract constitutes the entire agreement between the Parties with respect to the subject matter hereof and supersedes all prior agreements and understandings, whether written or oral.IN WITNESS WHEREOF, the Parties have executed this Contract as of the date first above written.Party A: Party B:_________________________ _________________________[Name] [Name][Title] [Signature][Date] [Date]。

毕业论文翻译稿件【范本模板】

毕业论文翻译稿件【范本模板】

本科毕业论文外文翻译外文译文题目:对于E类型的简单生产线平衡问题的解决过程学院: 机械自动化专业: 工业工程学号: 201003166078学生姓名:谭柱森指导教师: 李颖日期: 二○一四年五月A solution procedure for type E simple assembly linebalancing problemNai—Chieh Wei , I-Ming ChaoIndustrial Engineering and Management,I—Shou University,No. 1,Section 1, Syuecheng Rd. Dashu District, KaohsiungCity 84001,Taiwan, ROC.对于E类型的简单生产线平衡问题的解决过程Nai-Chieh Wei , I-Ming Chao工业工程与管理,中华人民共和国,台湾省,高雄市,Syuecheng Rd。

Dashu街一号,义守大学,第一章第一节摘要本文提出了结合SALBP—1和SALBP-2的E型简单装配线平衡问题(SALBP—E),更多的,本研究为提出的模型提供了解决方法。

提出的模型在最小化空闲时间的同时优化装配线平衡率,为管理实践提供了更好的理解,计算结果表明:给出周期的上限ct以后,提出的模型可以最优的解决问题,因为它含有最少的变量,约max束和计算时间。

1前言从研究者第一次讨论装配线平衡问题以来,大约有50年了,在众多有关生产线平衡问题中,最基本的是简单装配线平衡问题,早在1954年,Bryton就定义并且研究了生产线平衡问题。

后一年,Salverson建立了第一个生产线平衡的数学模型并提出了定性的解决步骤,这引来了很大的兴趣,在Gutjahr 和Nemhauser说明生产线平衡是一种NP组合优化难题,大多数研究者希望开发一种能高效解决多种装配线问题的方法。

在随后的几年,生产线平衡成为了一个流行的主题,Kim,Kim,and Kim (1996)把生产线平衡分为五类问题,其中的问题1(SALBP —1)和问题Ⅱ(SALBP—Ⅱ)是两种基本的优化问题。

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杭州电子科技大学毕业论文外文文献翻译要求根据《普通高等学校本科毕业设计(论文)指导》的内容,特对外文文献翻译提出以下要求:一、翻译的外文文献可以是一篇,也可以是两篇,但总字符要求不少于1.5万(或翻译成中文后至少在3000字以上)。

二、翻译的外文文献应主要选自学术期刊、学术会议的文章、有关著作及其他相关材料,应与毕业论文(设计)主题相关,并作为外文参考文献列入毕业论文(设计)的参考文献。

并在每篇中文译文标题尾部用“脚注”形式注明原文作者及出处,中文译文后应附外文原文(全文,格式为word)。

不能翻译中国学者的文章,不能翻译准则等有译文的著作。

三、中文译文的基本撰写格式1.题目:采用小三号、黑体字、居中打印;段前二行,段后二行。

2.正文:采用小四号、宋体字,行间距一般为固定值20磅,标准字符间距。

页边距为左3cm,右2.5cm,上下各2.5cm,页面统一采用A4纸。

四、外文原文格式1.题目:采用小三号、Times New Roman、居中打印;段前二行,段后二行。

2.正文:采用小四号、Times New Roman,行间距一般为固定值20磅,标准字符间距。

页边距为左3cm,右2.5cm,上下各2.5cm,页面统一采用A4纸。

五、封面格式由学校统一制作(注:封面上的“翻译题目”指中文译文的题目),并按“封面、封面、译文、外文原文、考核表”的顺序统一装订。

毕业论文外文文献翻译毕业论文题目Xxx 翻译题目指翻译后的中文译文的题目学院会计学院(以本模板为准)专业XXXXXX(以本模板为准)姓名XXXXXX(以本模板为准)班级XXXXXX(以本模板为准)学号XXXXXX(以本模板为准)指导教师XXXXXX(以本模板为准)译文管理者过度乐观与债务、股权融资之间的选择1本文采取了一家成长较快速的公司作为样本,比较债务融资和股权融资后的长期股票业绩。

如果管理者过于乐观的预测他们将获得的资产,那么他们更有可能通过债务融资来增加资本而不是股权融资。

然而他们通过债务融资获得的资本与股权融资后的长期的业绩相比将会更差。

但是,从另一方面来说,管理者利用“机会窗口”发行股票,我们认为会比发行债券有更差的业绩。

伴随着管理者过度的乐观假设,我们发现,债务融资比股权融资后的股票业绩更差。

管理者过度乐观对于选择债务或股权融资还有之后的股票业绩有着显着的影响。

关键词:过度乐观、过于自信、债务融资、股权融资、长期的股票表现一、前言股价低和经营业绩差的表现导致了一个假说,即利用高股价和投资者的过度乐观的时期,销售定价过高的股票。

这个“机会之窗”假说认为,管理者存在时间股权的问题时,他们公司的股票会被高估(Ritter [1991])。

然而,这一假说,不能用来解释股票表现不佳的问题(Spies,Affleck-Graves [1999]和Datta, Iskandar-Datta and Raman [2000])。

绩效差带来的债务融资问题表明必须要有一种替代假说可以解释这些发现。

……1Michael Gombola. & Dalia Marciukaityte. The Journal of Behavior Finance,2007 V ol. 8, No. 4, P.225–235外文原文Managerial over optimism and the Choice between DebtAnd Equity FinancingThis paper compares long-run stock performance following debt financing and equity financing for a sample of rapidly growing firms. If managers are subject to overly optimistic predictions for their asset acquisitions, they are more likely to finance asset growth by debt rather than by equity. The managerial over optimism hypothesis predicts worse long-term performance for debt-financed asset acquisitions than equity-financed asset acquisitions. If, on the other hand, managers take advantage of “windows of opportunity” for issuing equity, we expect worse performance following equity issuance than following debt issuance. Consistent with the managerial over optimism hypothesis, we find that debt financing is followed by significantly worse stock performance than equity financing. Managerial over optimism seems to be a significant factor affecting the choice between debt and equity financing and post-financing stock performance. Keywords: Over optimism, Overconfidence, Debt financing, Equity financing, long run stock performanceIntroductionEvidence of poor stock and operating performance following equity issues has led to the hypothesis that managers take advantage of periods of high stock prices and investor over optimism in order to sell overpriced equity. This “windows of opportunity” hypothesis suggests that manager’s time equity issues when their firm’s shares are overpriced (Ritter [1991]). This hypothesis, however, cannot be used to explain poor stock performance following debt issues documented by Spies and Affleck-Graves [1999] and Datta, Iskandar-Datta and Raman [2000]. Underperformance following debt financing indicates a need for an alternative hypothesis that can explain these findings.We suggest that managerial over optimism is a factor that can explain poor long-term stock performance following stock and, especially, bond issuance. Recent studies show that managerial over optimism affects corporate decisions (e.g., Heaton [2002], Gervais,Heaton and Odean [2003], Malmendier and Tate [2003 and 2005]). As managers are more affected by the per- formance of their firm than are well-diversified shareholders, moderate managerial over optimism can help to ensure that managers behave in the best interest of shareholders by counteracting the effect of managerial risk aversion; however, strong managerial over optimism can result in the undertaking of negative net present value projects and destruction of a firm’s value (Gervais, Heaton and Odean [2003]). An excessively favorable estimate of future outcomes for investments is the crux of this managerial overoptimism hypothesis. When managers have optimistic predictions of investment outcomes, they are more inclined to finance with debt rather than equity. Confidence about the size of future outcomes makes managers unwilling to share future profits with new equity investors and make them more willing to issue debt rather than equity.This study tests the managerial overoptimism hypothesis by examining post-financing stock performance for both debt and equity financing. If managerial overoptimism has a more significant effect on the choice between debt and equity financing and postfinancing performance than manager attempts to time the market and take advantage of windows of opportunity for issuing equity, we expect worse stock performance following debt financing than following equity financing.We focus on a sample of firms with rapid growth in assets and a corresponding need to finance those assets. By focusing on firms that require asset financing, security issuance for other purposes can be largely eliminated. Furthermore, since studying long-term performance does not require identifying a particular issuance date, our study is not limited to firms with explicit announcements of security issuance. Rather than limiting the study to firms that announce new issues of debt or equity, we include all forms of financing and measure financing by the change in debt or change in equity. In this manner, implicit security issuance such as stock-for-stock mergers can be incorporated in the sample. Another reason for focusing on high growth firms is our expectation of stronger managerial over optimism among these firms. All else being equal, overoptimistic managers perceive that they have more good projects available than other managers. As managers should take all projects they believe to have positive net present value, overoptimistic managers would undertake more projects resulting in the faster growth of their firms.There are two reasons why it is important to focus on a sample affected by strong managerial over optimism in a study examining whether managerial over optimism affects the choice between debt and equity financing and poor post-financing performance. First,the windows of opportunity hypothesis and the managerial overoptimism hypothesis are not mutually exclusive. It is possible that while some managers choose between debt and equity financing to take advantage of windows of opportunity, other managers are significantly affected by overoptimism when making security choice decisions. Even the same manager can be affected by both factors at the same time: an overoptimistic manager may attempt to take advantage of share mispricings. Because of market timing to sell overpriced shares, equity financing will be followed by worse post-financing stock performance than debt financing. Because of the managerial overoptimism effect on the choice between debt and equity financing, debt financing will be followed by worse stock performance. As these factors work in opposite directions, the effect of market timing can cancel the effect of managerial overoptimism in a sample of all debt and equity issues. The second reason for focusing on a sample affected by strong managerial overoptimism is related to the market overoptimism. Poor post-financing stock performance indicates that the market is overoptimistic about the firm obtaining external financing. Overoptimistic managers prefer debt financing to equity financing when they perceive their shares to be underpriced, which happens when managers are more overoptimistic about their firm’s future than is the market. As the market is overoptimistic about financing firms, overoptimistic manager preference for debt financing will be observed only for the most overoptimistic managers whose overoptimism exceeds the overoptimism of the market.Consequently, ifwewould examine the whole population of firms obtaining external financing, it is likely that wewould find no evidence of worse stock performance following debt financing than equity financing, even if managerial over optimism significantly affects the choice between debt and equity financing and post-financing stock performance. This expectation is consistent with the Jung, Kim and Stulz [1996] study that compares stock performance after newbond issues and primary stock offerings and, when controlling for the characteristics of issuing firms, find no significant difference in the post-issue performance.We examine a sample of high-growth firms that includes the top 10% of firms in the Compustat database, based on their one-year percentage total asset growth. The resulting sample contains firms with significant financing during the examined year. We study two subsets of the high-growth sample: a sample of firms that primarily use debt to finance asset growth and a sample of firms that primarily use external equity to finance asset growth. If more overly optimistic managers use debt financing, then we would find worse performance for the sample that primarily uses debt financing. Worse performance for the sample of equityfinancing firms could provide support for the windows of opportunityhypothesis. We find that debt financing is associated with significantly worse post-financing one- to five-year stock performance. For example, in the first post-financing year, our debt-financing sample underperforms our equity-financing sample by 8% to 10%, depending on the methodology used to control for risk. We control for risk using the matched-sample approach advocated by Barber and Lyon [1997] and a four-factor model, including the three Fama and French [1993] factors supplemented by a momentum factor. We also examine the effect of the choice between debt and equity financing on post-financing performance using a continuous variable to measure a firm’s reliance on debt financing and controlling for firm characteristics. Furthermore, we test the robustness of our results using restricted samples. Regardless of the test design, we find that stronger reliance on debt financing is associated with worse post-financing stock performance. Our results support the notion that the choice between debt and equity financing and post-financing stock performance are affected by managerial over optimism.Alternate HypothesesSeveral hypotheses have been presented to explain the price reaction to the announcement of security issuance and the performance following that issuance. In the signaling model presented by Myers and Majluf [1984], investors learn about the private information managers have about the value of the firm’s assets from their choice of financing. Managers avoid issuing securities they believe are underpriced and avoid sharing the value added from good investment opportunities with outside investors. Mangers prefer to fund investments internally and issue lower-risk securities when outside capital is needed. This hypothesis provides background for the managerial over optimism hypothesis and the windows of opportunity hypothesis.Managerial Over optimism HypothesisA corollary to the signaling hypothesis is the suggestion that managers who are overoptimistic about their fi rm’s ability to generate wealth-creating projects and believe their equity to be undervalued prefer to issue debt rather than equity. Heaton [2002] formalizes the model examining the effect of managerial over optimism on corporate decisions. He suggests th at when managers are overoptimistic about the firm’s prospects, they perceive their firm’s risky securities to be undervalued and, to avoid issuing underpriced securities, prefer debt issues to equity issues. Also, since overoptimistic managers overvalue the projects available to them, they undertake some projects that arenegative net present value projects even though their intentions are to act in the best interests of their shareholders.Recent empirical studies support Heaton’s [2002] hypothesis that o veroptimistic managers prefer debt financing to equity financing. Malmendier, Tate and Yan [2006] examine a sample of Forbes 500 firms and find that overconfident CEOs are more likely to issue debt than equity. Furthermore, Marciukaityte [2006] finds that firms obtaining substantial debt financing have higher discretionary accruals than firms obtaining substantial external equity financing. She suggests that high discretionary accruals at the time of debt financing are due to managerial over optimism.Poor stock performance following equity and debt issues (e.g., Ritter [1991], Loughran and Ritter [1995] Spies and Affleck-Graves [1995 and 1999], Datta, Iskandar-Datta and Raman [2000]) suggests that the market is overoptimistic about the value of firms obtaining external financing. For overoptimistic managers to believe that their firm is undervalued, they need to be more overoptimistic than the market about the value of their firm. Behavioral studies suggest that at least the most overoptimistic managers are even more overoptimistic about the value of their firms than the market. These studies show that over optimism and overconfidence are not just characteristics of laypeople; managers are also likely to be overconfident. After testing overconfidence among groups of managers from different industries, Russo and Schoemaker [1992] conclude that “every group believed it knew more than it did about its industry or company” and more than 99% were overconfident. Also, Langer [1975] and Weinstein [1980] show that people tend to be more overoptimistic about outcomes when they believe they have control of those outcomes. Of course, managers do have more control of their firms than investors do. Furthermore, desirability of outcomes and commitment to outcomes increase over optimism (Frank [1935], Weinstein [1980]). As managers’ compensation and reputation are affected by the performance of their firms, managers are likely to be more strongly committed to their firms than investors. Even higher intelligence does not seem to protect against over optimism; Klaczynski and Fauth [1996] show that over optimism is actually more severe among people with superior intellectual abilities. Furthermore, as some of the factors affecting managerial and market over optimism may be the same, e.g., past performance of the firm or past performance of similar firms, managers are likely to be the most overoptimistic when the market is overoptimistic. Thus, the most overoptimistic managers will perceive their firm to be undervalued by the market even when it is overvalued.Managerial optimism for individual projects can extend to overconfidence in the abilityto add value to any acquired assets, including acquiring an entire firm. Within the context of a merger, the managerial overconfidence is r eferred to as “Managerial Hubris.” It is an explanation for acquiring firms paying substantial premiums to acquire targets, where the premiums are in excess of managerial ability to add value to the target assets. The methodology of this study incorporates merger activity within its definition of firm growth, since asset growth can be accomplished either through capital expenditure for new assets, purchase of existing assets from another firm, or mergers. Likewise, debt or equity issued to finance a merger or acquisition is incorporated within the methodology of this study. Such debt or equity issuance will not be accompanied by an announcement of a new security offering even though the effect is the same whether securities are issued via a public offering or in conjunction with a merger or acquisition.Windows of Opportunity HypothesisIf managers are reluctant to issue underpriced securities, then equity issuance would occur primarily when mangers perceive these securities to be overpriced. The managerial practice of issuing overpriced equity receives empirical support in the study by Ritter [1991] of stock underperformance after initial public equity offerings (IPOs). Ritter finds that IPO firms underperform matching firms for three years after the first day of public trading. Such underperformance is even stronger for firms going public in years with heavy IPO activity. These findings, Ritter suggests, “indicate that issuers are successfully timing new issues to take advantage of ‘windows of opportunity.”’(p. 4) If investors are overoptimistic about the firm value in certain periods, making equity issues in those periods allows a firm to raise the same amount of money with an issue of fewer shares, taking advantage of new shareholders. This hypothesis suggests that investors are overoptimistic about the value of a firm at the time of the offering and are slow to react to the information contained in the announcement of security issue.Loughran and Ritter (1995) and Spiess and Affleck- Graves (1995) show that post-issue underperformance is not restricted to IPOs; firms making seasoned public equity offerings also underperform matched firms in the one- to five-year post-issue periods. The type of equity offering, public or private, also seems not to matter. Private placements of equity are followed by similar-size stock underperformance as public equity issues (Hertzel, Lemmon, Linck and Rees [2002]). Furthermore, post-issue underperformance is not limited to equity issues in the United States. Levis [1995] documents poor post-issue performance in the United Kingdom. Kang, Kim and Stulz [1999] show that private and public equity issues in Japan are followed by similar poor post-issue performance as equityissues inthe United States.Although empirical evidence of underperformance following equity issuance is consistent with the windows of opportunity hypothesis, underperformance following debt issuance is not consistent with this hypothesis. However, several studies find stock underperformance following public straight and convertible debt offerings (Spiess and Affleck-Graves [1999]), initial debt offerings (Datta, Iskandar-Datta and Raman [2000]), and bank loans (Billett, Flannery and Garfinkel [2002]). These findings bring into question the windows of opportunity hypothesis as the only explanation of the post-financing underperformance. Since the cost of debt financing depends primarily upon market interest rates and not specific firm performance, managers are not likely to have any better forecast of the future direction of interest rates than do outside investors. Even with private information about the default risk of the issuing company, the value benefits are greater from selling overpriced equity than overpriced debt prior to information about the true default risk becoming public.Sample and MethodologySampleWe compile the high-growth sample using the following steps. First, we identify the set of firm-years that are included in both CRSP and Compustat databases during the period 1981-1999. We limit this set to firm years with the data necessary to identify the high growth sample, the debt-financing sample, and the equity-financing sample. We exclude regulated utilities (SIC codes 4910-4949), depository institutions (SIC codes 6000-6099), and holding or other investment offices (SIC codes 6700-6799).We consider only fiscal years that are 12 months long. The high-growth sample includes firm-years in the highest decile of asset growth. We calculate the asset growth as a change in total assets (Compustat item A6) during one fiscal year, divided by total assets at the beginning of the fiscal year. This procedure limits the sample to 7,664 firms. Furthermore, to reduce the problem of cross-sectional dependence of observations, we require that firm-years for the same firm are at least five years apart. If we have more than one firm-year in any five-year period, we include only the earliest one. This procedure creates the high-growth sample including 5,583 firms.The percentage growth in total assets is evaluated for an event year, defined as Year 0. We define the event day as the last day of the third month after Year 0. We use the three-month lag after the end of the fiscal year to allow the market to have access to each firm’s accounting information for Year 0. O ur post-event period starts three months afterthe end of Year 0.After compiling the sample of high-growth firms and determining event days, we subdivide the high growth sample into subsamples that use primarily debt and external equity financing. The debt-financing sample includes firms with debt financing at least 50% higher than external common-equity and internal equity financing during Year 0, and the equity-financing sample includes firms with external common-equity financing at least 50% higher than debt or internal equity financing during Year 0. We calculate debt financing as a change in total debt (total long-term debt (item A9) plus debt in current liabilities (item A34)) during Year 0, equity financing as a change in common equity (item A60) minus a change in retained earnings (item A36) during Year 0, and internal financing as a change in retained earnings plus depreciation and amortization expenses (item A14) during Year 0. The debt-financing sample includes 1,914 high-growth firms, and the equity-financing sample includes 2,537 high-growth firms.The benefit of our methodology is that the net ofall the firm’s financing activities can be considered rather than only one financing event. Debt issues are frequently motivated by refinancing, either to roll over existing debt that is maturing, to change the maturity of the firm’s debt, or to take advantage of lower interest rates. McLaughlin, Safieddine and Vasudevan [1998] find that about a quarter of their sample of debt offerings resulted in either a negative change in leverage or no change in leverage. Similarly, a debt issue followed by a larger equity issue or an equity issue followed by an even larger debt issue will mask the true nature of the firm’s overall financing strategy.In Table 1, we examine the chronological distribution of the high-growth, debt-financing, and equity financing samples. The high-growth sample is well distributed across time with none of the years including more than 10% of the events. We also find that at least 5% of the high-growth firms are from business services, electronic and other electric equipment; industrial machinery and equipment; chemicals and allied products; instruments and related products; or oil and gas extraction industries (not presented in a table).外文翻译考核表。

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