A comprehensive survey of M2AX phase elastic properties Supplementary_data
矿山隐蔽致灾因素普查工作总结
矿山隐蔽致灾因素普查工作总结英文版Mining Hidden Disaster Factors Survey SummaryIn recent years, with the rapid development of the mining industry, the number of mining accidents has also been on the rise. In order to effectively prevent and control mining disasters, a comprehensive survey of hidden disaster factors in mines was conducted.The survey found that the main hidden disaster factors in mines include inadequate ventilation, unstable geological conditions, outdated equipment, and inadequate safety training for workers. These factors can lead to various accidents such as gas explosions, roof collapses, and equipment malfunctions.To address these issues, it is recommended that mining companies invest in upgrading ventilation systems, conducting regular geological surveys, replacing outdated equipment, and providing comprehensive safety training for all workers. By taking these proactive measures, the risk of mining accidents can be greatly reduced.In conclusion, the survey of hidden disaster factors in mines has provided valuable insights into the potential risks and hazards faced by miners. By addressing these factors and implementing appropriate safety measures, we can create a safer working environment for all mining personnel.矿山隐蔽致灾因素普查工作总结近年来,随着矿业的快速发展,矿难事故的发生数量也在不断增加。
南京市2024高三年级学情调研英语
南京市2024高三年级学情调研英语全文共3篇示例,供读者参考篇1Title: A Survey on the Academic Situation of Senior Grade Three Students in Nanjing City in 2024Introduction:In 2024, a comprehensive survey was conducted to investigate the academic situation of senior grade three students in Nanjing City. This survey aimed to provide insights into the current state of education in the city and identify areas that need improvement.Methodology:The survey was conducted through questionnaires distributed to senior grade three students in various schools in Nanjing City. A total of 1000 students participated in the survey, providing information on their study habits, academic performance, levels of stress, and attitudes towards education.Results:The survey revealed that the majority of students in Nanjing City are highly motivated and dedicated to their studies. They spend an average of 5 hours per day studying and participating in extracurricular activities. However, a significant number of students reported feeling overwhelmed by the pressure to perform well in exams and competitions.In terms of academic performance, the survey found that the students in Nanjing City performed well in subjects such as mathematics and science, but struggled with English and literature. This highlights the need for more support and resources in these areas.Furthermore, the survey identified a correlation between students' levels of stress and their performance in exams. Students who reported higher levels of stress tended to perform worse in exams, indicating a need for better mental health support in schools.Conclusion:Overall, the survey provides valuable insights into the academic situation of senior grade three students in Nanjing City in 2024. It highlights the strengths and weaknesses of the education system in the city and points towards areas that require improvement. By addressing the issues raised in thesurvey, education authorities can work towards creating a more supportive and conducive learning environment for students in Nanjing City.篇2A Survey on the Academic Situation of Senior Year Students in Nanjing City in 2024IntroductionAs the 2024 academic year unfolds, it is crucial to understand the current situation faced by high school students in the senior year in Nanjing City. Therefore, a comprehensive survey was conducted to gather valuable insights into the academic landscape and challenges faced by these students. The following report outlines the key findings and implications of the study.MethodologyThe survey was conducted among senior year students in Nanjing City through questionnaires and interviews. A total of 500 students from various high schools participated in the study. The questionnaire consisted of both closed-ended andopen-ended questions, focusing on academic performance, study habits, stress levels, and future aspirations. In addition,in-depth interviews were conducted with a select group of students to gain deeper insights into their experiences.Key Findings1. Academic Performance: The majority of senior year students reported feeling the pressure to perform well academically, given the upcoming college entrance exams. However, only a small percentage of students felt confident in their academic abilities.2. Study Habits: Many students admitted to spending long hours studying each day, often sacrificing sleep and social activities. However, there was a notable lack of effective study habits, with students often resorting to rote memorization instead of critical thinking.3. Stress Levels: The survey revealed that a significant number of students were experiencing high levels of stress due to academic pressure, parental expectations, and fears about the future. Some students reported feeling overwhelmed and anxious on a daily basis.4. Future Aspirations: Despite the challenges faced, the majority of senior year students expressed a strong desire to succeed and pursue higher education. Many students weredetermined to achieve their academic goals and secure a bright future for themselves.ImplicationsThe findings of the survey highlight the urgent need for targeted interventions to support senior year students in Nanjing City. It is essential to provide students with resources and strategies to improve their study habits, manage stress effectively, and cultivate a positive mindset. Additionally, schools and parents should work together to create a supportive environment that nurtures students' academic and personal growth.ConclusionIn conclusion, the survey on the academic situation of senior year students in Nanjing City provides valuable insights into the challenges faced by these students. By addressing the key findings and implications outlined in this report, educators, parents, and policymakers can work together to create a supportive and empowering environment for senior year students to thrive academically and beyond.篇3Research on the Learning Situation of High School Seniors in Nanjing City in 2024IntroductionEducation is the foundation of a nation, and the learning situation of high school seniors is crucial to the future development of a country. In 2024, Nanjing City conducted a comprehensive survey on the learning situation of high school seniors to better understand the challenges and opportunities faced by students in their final year of high school.MethodologyThe survey was conducted among high school seniors in Nanjing City, including both public and private schools. A total of 1000 students were randomly selected to participate in the survey, which included questionnaires, interviews, and classroom observations. The data collected was analyzed to provide insights into the academic performance, study habits, and mental health of high school seniors in Nanjing City.Findings1. Academic PerformanceThe survey found that the academic performance of high school seniors in Nanjing City was generally high, with moststudents achieving good grades in their examinations. However, there were also a significant number of students who struggled with certain subjects, such as mathematics and physics. This highlights the need for targeted support and tutoring for students who are facing difficulties in specific subjects.2. Study HabitsThe survey revealed that high school seniors in Nanjing City had varying study habits, with some students studying diligently while others procrastinated or lacked motivation. Many students reported feeling overwhelmed by the heavy workload and pressure to excel in their studies. There was also a concern about the excessive use of electronic devices, which was found to be a distraction for students during their study time.3. Mental HealthMental health emerged as a major concern among high school seniors in Nanjing City, with a significant number of students reporting feelings of anxiety, stress, and depression. The pressure to perform well in examinations and secure a place in a top university was cited as a major source of stress for students. Many students also reported feeling isolated and lonely, especially during the COVID-19 pandemic when social interactions were limited.Recommendations1. Provide targeted support and tutoring for students who are struggling with certain subjects, such as mathematics and physics.2. Promote healthy study habits and time management skills among high school seniors to improve their academic performance and well-being.3. Offer mental health support and counseling services to address the psychological issues faced by students in their final year of high school.4. Encourage a balanced lifestyle that includes regular exercise, social activities, and relaxation to help students cope with stress and anxiety.ConclusionThe survey on the learning situation of high school seniors in Nanjing City in 2024 provided valuable insights into the challenges and opportunities faced by students in their final year of high school. By implementing targeted interventions and support services, educators and policymakers can help students achieve academic success and well-being in their final year of high school.。
A Comprehensive Survey of Multiagent Reinforcement Learning
IEEE TRANSACTIONS ON SYSTEMS, MAN, AND CYBERNETICS—PART C: APPLICATIONS AND REVIEWS, VOL. 38, NO. 2, MARCH 2008
A Comprehensive Survey of Multiagent ReinfoN
A
MULTIAGENT system [1] can be defined as a group of autonomous, interacting entities sharing a common environment, which they perceive with sensors and upon which they act with actuators [2]. Multiagent systems are finding applications in a wide variety of domains including robotic teams, distributed control, resource management, collaborative decision support systems, data mining, etc. [3], [4]. They may arise as the most natural way of looking at the system, or may provide an alternative perspective on systems that are originally regarded as centralized. For instance, in robotic teams, the control authority is naturally distributed among the robots [4]. In resource management, while resources can be managed by a central authority, identifying each resource with an agent may provide a helpful, distributed perspective on the system [5].
全国第九次森林资源清查英语
全国第九次森林资源清查英语1. IntroductionThe ninth national forest resource inventory is a comprehensive nationwide survey conducted by the Chinese government to assess the state of the country’s forests. This survey aims to collect detailed information about forest resources, including forest coverage, species composition, forest health, and ecosystem services. In this document, we will provide an overview of the ninth national forest resource inventory in China, emphasizing the importance of this project and the data it provides.2. ObjectivesThe main objectives of the ninth national forest resource inventory are as follows:To assess the current state of China’s forests and monitor changes over time.To understand the spatial distribution of forest resources across the country.To collect data on forest biodiversity and species composition.To evaluate the health and vitality of forest ecosystems.To estimate the carbon storage capacity and other ecosystem services provided by forests.To provide a scientific basis for forest management and policy-making.3. MethodologyThe ninth national forest resource inventory adopts a systematic sampling design to collect data representative of the entire country. The sampling units are selected using a stratified random sampling approach, ensuring that all types of forests and geographic regions are adequately represented. Data collection includes field measurements, remote sensing, and aerial photography.Field measurements are carried out by trained forestry technicians who collect information on forest area, tree height, diameter at breast height (DBH), and tree species. Remote sensing techniques, such as satellite images and LiDAR, are used to gather data on forest cover, distribution, and biomass. Aerial photography is employed to monitor forest health, detect disturbances (e.g., forest fires or insect outbreaks), and identify changes in land use.The collected data are then processed and analyzed using advanced statistical methods to provide accurate estimates of forest resources at the national, regional, and local levels.4. Key FindingsThe ninth national forest resource inventory has provided valuable insights into the state of China’s forests. Here are some key findings from the survey:China’s total forest area has increased significantly since the previous inventory, indicating successful reforestation efforts and afforestation programs.The distribution of forest resources varies across the country, with higher concentrations in the northeast and southwest regions.Forest biodiversity is relatively high in China, with a wide variety of tree species identified during the inventory.The overall health and vitality of China’s forests are good, although certain areas are experiencing issues such as deforestation and illegal logging.Forest ecosystems in China play a vital role in carbon sequestration, soil conservation, and water regulation.5. Implications and ApplicationsThe data collected from the ninth national forest resource inventory have numerous implications and applications. Here are some examples:Forest managers and policymakers can use the data to develop effective conservation and management strategies.The information on forest health and disturbances can help identify areas that require immediate attention, such as implementing measures to prevent further deforestation or restore damaged ecosystems.The data on carbon storage and ecosystem services can contribute to national and global efforts to combat climate change and achieve sustainable development goals.Researchers can use the data to conduct further studies on forest ecology, biodiversity, and ecosystem dynamics.The inventory data can also support international collaborations and reporting on forestry-related issues.6. ConclusionThe ninth national forest resource inventory in China provides crucial information for understanding the state of the country’s forests. Through a comprehensive and systematic approach, this survey collects data on forest coverage, biodiversity, health, and ecosystem services. The findings from this inventory can support evidence-based decision-making, inform forest management strategies, and contribute to national and global efforts for sustainable development.References:National Forestry and Grassland Administration. (2019). Report on the Ninth National Forest Resource Inventory.Note: This document is a fictional example and does not represent real data or findings from the ninth national forest resource inventory in China.。
英语教研活动汇报(3篇)
第1篇IntroductionThe English Research and Teaching Activities Report aims to provide a comprehensive overview of the recent initiatives, achievements, and challenges faced by our department in enhancing the quality of English education. This report covers the period from [Start Date] to [End Date], highlighting the various activities conducted and their impact on both faculty and students.I. Research Activities1. Project Titles and Aims- Project 1: "Enhancing English Language Skills through Technology Integration"Aim: To investigate the effectiveness of incorporating technology into English language teaching and learning.- Project 2: "Cultural Competence in English Language Education"Aim: To explore the importance of cultural competence in English language learning and its implications for global communication.- Project 3: "The Impact of English Language Learning on Academic Performance"Aim: To analyze the correlation between English languageproficiency and academic achievement among undergraduate students.2. Research Outputs- Publications:- Five research articles have been published in reputable international journals, contributing to the academic community's understanding of English language education.- One book chapter has been accepted for publication in an edited volume on English language teaching methodologies.- Conferences and Workshops:- Faculty members have presented their research findings at three international conferences and one national workshop.- A half-day workshop on "Innovative Teaching Strategies in English Language Education" was conducted for teachers from neighboring institutions.3. Collaborations- Collaborations with [Collaborating Institution 1] and [Collaborating Institution 2] have been established to share research findings and resources.- A joint research project with [Collaborating Researcher] from [Collaborating Institution 3] is in progress, focusing on the effectiveness of project-based learning in English language education.II. Teaching Activities1. Curriculum Development- A revised English language curriculum has been introduced, incorporating a greater emphasis on communication skills and cultural awareness.- A new module on "Global English" has been added to the curriculum, exploring the use of English in different cultural contexts.2. Teaching Methods and Techniques- The flipped classroom approach has been adopted in several courses, encouraging students to engage with the material outside of class and participate in interactive discussions during lectures.- The use of technology, such as interactive whiteboards and online learning platforms, has been integrated into teaching to enhance student engagement and motivation.3. Student Learning Outcomes- Pre- and post-assessment data indicate a significant improvement in students' English language proficiency, particularly in speaking and listening skills.- Student feedback suggests that the revised curriculum and teaching methods have positively impacted their learning experience.III. Challenges and Future Plans1. Challenges- Limited access to technology and resources in some classrooms remains a challenge.- Maintaining the quality of teaching while managing a large student population can be demanding.2. Future Plans- Invest in upgrading technology infrastructure to ensure equitable access to resources.- Develop professional development programs for faculty to enhance their teaching skills and adapt to new methodologies.- Explore opportunities for international collaboration to enrich the curriculum and student experiences.ConclusionThe English Research and Teaching Activities Report highlights the department's commitment to excellence in English language education. Through ongoing research, curriculum development, and innovative teaching methods, we have made significant strides in enhancing the quality of our programs. As we move forward, we remain dedicated to addressing challenges and exploring new opportunities to ensure that our students receive the best possible education in English language and literature.AcknowledgmentsWe would like to express our gratitude to all faculty members, students, and collaborators who have contributed to the success of our research and teaching activities. Special thanks go to the administration for their unwavering support and commitment to educational excellence.[Your Name][Your Position][Your Institution][Date]第2篇Introduction:The English Department has recently conducted a series of research and teaching activities aimed at enhancing the quality of English education and fostering a collaborative learning environment. This report provides an overview of the activities conducted, their objectives, outcomes, and the lessons learned.I. Research Activities1. Topic: "The Impact of Technology on English Language Learning"Objective: To investigate the effectiveness of integrating technology into English language teaching and learning.Activities:- A literature review was conducted to explore existing research on technology integration in language learning.- A survey was conducted among students and teachers to gather their opinions on technology use in English classes.- Case studies were conducted in selected classrooms to observe the impact of technology on student learning.Outcomes:- The survey revealed that students and teachers were generally positive about the use of technology in English classes.- The case studies indicated that technology integration led to increased student engagement and improved learning outcomes.- Recommendations were made for incorporating technology effectivelyinto English language teaching.2. Topic: "Effective Strategies for Teaching Reading Comprehension"Objective: To identify and evaluate strategies that can enhance reading comprehension skills among English learners.Activities:- A workshop was organized for teachers to discuss various reading comprehension strategies.- A series of reading activities were designed and implemented in classrooms to test the effectiveness of these strategies.- Pre- and post-tests were conducted to measure the improvement in reading comprehension skills.Outcomes:- Teachers reported that the workshop provided valuable insights into different reading comprehension strategies.- The implementation of reading activities in classrooms resulted in a significant improvement in students' reading comprehension skills.- Recommendations were made for integrating reading comprehension strategies into the curriculum.II. Teaching Activities1. Topic: "Flipped Classroom Approach in English Language Teaching"Objective: To explore the flipped classroom approach as a method for enhancing student learning and engagement.Activities:- A pilot program was launched to introduce the flipped classroom approach in selected English classes.- Teachers were trained on how to create and share video lessons and assign homework online.- Student feedback was collected to assess the effectiveness of the flipped classroom approach.Outcomes:- The pilot program showed promising results, with students reporting increased engagement and better understanding of the lessons.- Teachers observed that the flipped classroom approach allowed for more personalized learning and enabled them to focus on individual student needs.- Recommendations were made for expanding the flipped classroom approach to more classes.2. Topic: "Collaborative Learning in English Classes"Objective: To encourage collaboration among students in English language learning.Activities:- Group projects and discussions were incorporated into English classes to promote collaboration.- Students were encouraged to work in pairs or small groups to complete tasks and share their ideas.- Peer assessment was introduced to foster a culture of feedback and reflection among students.Outcomes:- Students reported feeling more confident in their language skills and more connected to their peers.- Teachers observed improved critical thinking and problem-solving abilities among students.- Recommendations were made for incorporating more collaborative learning activities into the curriculum.III. Professional Development1. Topic: "Professional Development for English Teachers"Objective: To provide opportunities for teachers to enhance their teaching skills and stay updated with the latest trends in English language education.Activities:- A series of workshops and seminars were organized on topics such as teaching grammar, vocabulary, and listening and speaking skills.- Teachers were encouraged to attend external conferences and training programs to broaden their knowledge and network with colleagues.- A reading group was formed to discuss recent research articles and share best practices.Outcomes:- Teachers reported gaining new insights and ideas for their teaching practices.- The department observed an increase in the use of innovative teaching methods and a more positive attitude towards professional development.- Recommendations were made for continuing and expanding the professional development programs.Conclusion:The English Department has successfully conducted a series of research and teaching activities aimed at improving the quality of English education. These activities have resulted in a better understanding of effective teaching strategies, increased student engagement, and enhanced teacher professional development. The department will continue to evaluate and refine these activities to ensure continuous improvement in English language teaching and learning.第3篇IntroductionThe English Department held a series of teaching and research activities from [start date] to [end date] with the aim of enhancing the quality of English language education, fostering teacher development, and exploring innovative teaching methods. This report outlines the objectives, activities, outcomes, and reflections of the event.Objectives1. Improve Teacher Pedagogical Skills: To provide teachers with opportunities to refine their teaching techniques and adopt new methodologies.2. Enhance Curriculum Development: To discuss and develop new and engaging curriculum materials that cater to the diverse needs of students.3. Foster Collaboration and Networking: To create a platform for teachers to share ideas, experiences, and best practices.4. Promote Continuous Professional Development: To encourage teachers to engage in ongoing learning and reflection on their teaching practices.Activities1. Workshops and Seminars:- Innovative Teaching Techniques: A workshop was conducted on the use of technology in the classroom, including the integration of multimedia tools and interactive platforms.- Flipped Classroom Approach: A seminar focused on the flipped classroom model, discussing its implementation and effectiveness in enhancing student engagement and learning outcomes.- Task-Based Language Teaching: Teachers participated in a workshop on task-based language teaching, exploring how to design tasks that promote meaningful communication and language skills development.2. Observation and Feedback Sessions:- Peer Teaching Observations: Teachers observed each other's classes and provided constructive feedback, highlighting strengths and areas for improvement.- Student Feedback Surveys: Student surveys were conducted to gather insights into their learning experiences and preferences, which were used to inform teaching practices.3. Curriculum Development Sessions:- Collaborative Curriculum Planning: Teachers collaborated to develop new units and lesson plans that incorporated cross-disciplinary themes and real-world contexts.- Resource Sharing: Teachers shared their resources and materials, including handouts, videos, and online resources, to enrich the curriculum.4. Guest Speakers and Keynote Presentations:- Expert Insights: Renowned educators and experts in the field of English language teaching delivered keynote presentations on current trends and best practices.- Local Practitioners: Local English teachers shared their experiences and challenges, providing a platform for discussion and learning from real-life situations.Outcomes1. Enhanced Pedagogical Skills: Teachers reported a significant improvement in their ability to use technology effectively in the classroom and implement innovative teaching methods.2. Improved Curriculum Quality: The new curriculum units and lesson plans developed during the activity were well-received by both teachers and students, leading to increased student engagement and learning outcomes.3. Strengthened Teacher Collaboration: The activities fostered a sense of community among teachers, leading to increased collaboration and resource sharing.4. Increased Professional Development: Teachers expressed a desire to continue their professional development journey, with many indicating an interest in further training and workshops.ReflectionsThe English Department's teaching and research activities were a resounding success. The following points highlight the key takeaways from the event:1. The Importance of Continuous Learning: Teachers recognized the importance of ongoing professional development and the need to stay updated with the latest trends and methodologies in English language teaching.2. Collaboration as a Catalyst for Growth: The collaborative nature of the activities demonstrated how sharing ideas and resources can lead to improved teaching practices and student learning.3. Technology as a Tool for Engagement: Teachers acknowledged the potential of technology to enhance student engagement and learning, but emphasized the need for thoughtful integration and pedagogical support.4. Student-Centered Approaches: The focus on student feedback and needs highlighted the importance of a student-centered approach to teaching and learning.ConclusionThe English Department's teaching and research activities have provided a solid foundation for the continuous improvement of English language education. By fostering collaboration, promoting professional development, and adopting innovative teaching methods, we are confident that we are moving in the right direction to enhance the learning experience of our students. The Department looks forward to building upon the success of this event and continuing to provide high-quality English language education in the future.。
镁及镁合金阳极氧化工艺综述
[ 9]
g/ L)
其 他 电 极电 位 更 正
的金属接触
5
FluoAnod
10%~ 30%NH4HF2
控 制 温 度 30 , 终 电 压 90 ~ 120 V ( AC/ DC ) 。 处 理 时 [ 15] 间 10~ 15 min。一般 用于清洗目的
120 g/ L KOH
控 制 温 度 15 ~ 100
24
M aterials Prot ection
A Comprehensive Survey on the Anodizing Process of Magnesium and Its Alloy
Sep. 2001 Vol. 34 No. 9
镁及镁合金阳极氧化工艺综述
中国科学院金属研究所 腐蚀与防护国家重点实验室 ( 沈阳 110016) 张永君 严川伟 楼翰一 王福会 曹楚南
2. 3 后处理
镁及镁合金后处理工艺 流程为: 温水 漂洗 热水漂 洗( 71~ 82 ) 或热风干燥 封 孔[ 9] 。阳 极氧化 膜的 多孔结 构对 需进一 步涂覆的有机膜层 构成优 良基 底, 却也 为膜 层下 腐蚀 的发 生埋
下隐患。为进一步提高阳极氧化膜的耐蚀耐磨性能, 有必要对其 进行封孔处理。常见封孔工艺见表 1。
电流密度 50~ 200 mA /
cm2( DC) , 通电时间1~ 5 min, 产生 50~ 500 m 厚的 硅酸 盐 膜。电 解
液中 K2SiO3 与 KOH 重 量之比为 4 6
30~ 250 g/ L K2A l2O4
KOH
控制温度 5~ 70 ,
或 20~ 200 g/ L K3BO3 电压 10~ 150 V, 电 流
网络安全论文 参考文献
网络安全论文参考文献网络安全论文参考文献:1. AlAhmad, A., Mannai, N., Alnuaimi, A., & Ammar, M. (2018).A comprehensive review of cyber security risks and defenses in healthcare systems. Journal of Medical Systems, 42(7), 121.2. Arora, R., Sardana, S., & Singh, G. (2017). Internet of things (IoT) and its impact on supply chain: A framework for proactive identification and mitigation of risks. Journal of Enterprise Information Management, 30(6), 913-935.3. Choo, K. K. R., & Jian, W. (2018). Cyber risk management for Internet of Things under uncertainty: A multi-criteria decision making method. Information Systems Frontiers, 20(2), 279-297.4. Gupta, A., Kapoor, S., Akhtar, M. S., Singh, P., & Jain, A. K. (2017). A review on cloud computing and IoT based cyber physical system to ensure security. Computers & Electrical Engineering, 59, 91-106.5. Martinez, L., Liu, C., & Stephens, S. (2017). Big data analytics and security in smart cities. IEEE Access, 5, 2679-2692.6. Nithya, K., & Geetha, K. (2017). A survey on cyber security issues, challenges and emerging technologies. Procedia Computer Science, 115, 348-355.7. Perera, C., Zaslavsky, A. B., Christen, P., & Georgakopoulos, D. (2014). Context aware computing for the Internet of Things: Asurvey. IEEE Communications Surveys & Tutorials, 16(1), 414-454.8. Pervaiz, Z., Saeed, A., Shetty, S., Khan, Z. A., & Rodrigues, J. J. P. C. (2019). Machine learning for wireless sensor networks security: State-of-the-art and future directions. IEEE Communications Surveys & Tutorials, 21(3), 2742-2773.9. Siddiqui, Z., Khattak, A. M., & Salah, K. (2020). Blockchain in internet of things: Challenges and solutions. Future Generation Computer Systems, 112, 906-925.10. Singh, D., Lal, S., Garg, D., & Kumar, N. (2020). A comprehensive study on security challenges and solution approaches in IoT and cloud integrated environment. Future Generation Computer Systems, 103, 449-467.。
调查报告英语范文200字
调查报告英语范文200字英文回答:Introduction.This survey report presents the findings of a comprehensive investigation into the current state of [research topic]. The survey was conducted to gather insights into the challenges, opportunities, and trends shaping this field.Methodology.The survey was distributed to [sample size] individuals representing a diverse range of backgrounds and perspectives within the [research topic] community. Participants were asked to respond to a series of questions designed to elicit their views on the key issues affecting the field.Key Findings.The survey identified several key findings, including:Challenges: The most significant challenges facing the [research topic] community include:Limited funding.Lack of collaboration.Lack of skilled professionals.Opportunities: Potential opportunities for growth and advancement in the field include:Technological advancements.Increased global demand.Growing awareness of the field's importance.Trends: Emerging trends shaping the future of [research topic] include:Interdisciplinary approaches.Data-driven decision-making.Artificial intelligence.Conclusions.The findings of this survey provide valuable insights into the current state and future prospects of [research topic]. By addressing the challenges, seizing the opportunities, and adapting to the emerging trends, the community can continue to advance the field and make meaningful contributions to society.中文回答:引言。
domesday book名词解释英文
domesday book名词解释英文
The Domesday Book was a comprehensive survey and record of land ownership and resources in England commissioned by William the Conqueror in 1085. It was completed in 1086 and provides detailed information on landholdings, population, livestock, and agricultural productivity of various regions in England at that time. The Domesday Book is valuable for historians and researchers studying medieval England, as it offers insights into the social and economic conditions of the period.
中文翻译:《末日审判书》(Domesday Book)是由威廉征服者于1085年委托编制的一部全面调查和记录英格兰土地所有权和资源的资料。
该书于1086年完成,提供了关于当时英格兰各地区土地所有权、人口、牲畜和农业生产力的详细信息。
《末日审判书》对于研究中世纪英格兰的历史学家和研究人员具有重要价值,因为它提供了有关该时期社会和经济状况的见解。
英语调查问卷演讲稿范文
Good [morning/afternoon/evening]. Today, I stand before you to present the results of a comprehensive survey that we have conducted recently. The purpose of this survey was to gather insights into the opinions, preferences, and experiences of our audience regarding various aspects of our community, services, and initiatives. Without further ado, let me take you through the highlights of our survey.IntroductionOur survey, titled "Community Insights and Engagement Survey," was designed to capture the voices of our diverse community members. It covered a wide range of topics, including community events, service quality, member satisfaction, and suggestions for improvement. We distributed the survey through various channels, including our website, social media platforms, and in-person events, and we received an overwhelming response from over 500 participants.Survey MethodologyTo ensure the accuracy and reliability of our results, we employed a structured questionnaire that consisted of both closed-ended and open-ended questions. The closed-ended questions allowed us to quantify responses and identify trends, while the open-ended questions provided us with qualitative insights and personal stories.Section 1: Community EventsWe began by asking participants about their participation in community events. The majority of respondents (65%) indicated that they had attended at least one community event in the past year. When asked about their favorite event, the top responses were the annual charity run (35%), the summer festival (25%), and the winter gala (20%).Section 2: Service QualityNext, we sought feedback on the quality of services provided by our organization. The results were overwhelmingly positive, with 85% of participants rating our services as excellent or good. However, we alsoreceived some constructive criticism, with a few participants suggesting improvements in customer service and accessibility.Section 3: Member SatisfactionIn this section, we asked participants about their overall satisfaction with our organization. An impressive 92% of respondents expressed satisfaction with their membership experience. The most appreciated aspects of membership were the networking opportunities (45%), the educational resources (35%), and the social events (20%).Section 4: Suggestions for ImprovementTo conclude the survey, we invited participants to share their suggestions for improvement. The most common themes included:1. Enhancing Accessibility: Participants requested better access to events and services for individuals with disabilities.2. Expanding Programs: There was a desire for more diverse and inclusive programs that cater to different interests and ages.3. Community Engagement: Suggestions to increase community involvement and encourage more local collaborations.4. Communication: Improving communication channels and ensuring that members are kept informed about upcoming events and initiatives.ConclusionIn conclusion, the results of our survey have provided us with invaluable insights into the needs and expectations of our community. We are grateful for the honest and thoughtful feedback that we have received, and we are committed to addressing the concerns raised and implementing the suggestions made.As we move forward, we will be focusing on the following key areas:1. Accessibility: We will work towards making our events and services more accessible to all members of our community.2. Program Expansion: We will explore new programs and initiatives that cater to a wider range of interests and ages.3. Community Engagement: We will seek out opportunities to collaborate with local organizations and increase community involvement.4. Communication: We will enhance our communication channels to ensure that members are well-informed and engaged.Ladies and Gentlemen, the success of our community depends on the active participation and input of each and every one of us. By coming together and sharing our ideas, we can create a more vibrant, inclusive, and engaging community for all. Thank you for your time, and we look forward to your continued support and involvement.[Applause]---Note: This is a sample speech based on a hypothetical survey. The percentages and specific suggestions are illustrative and not based on actual data.。
产品调研报告英语作文
产品调研报告英语作文The modern business landscape is characterized by fierce competition and rapidly evolving consumer preferences. In order to stay relevant and maintain a competitive edge, companies must consistently strive to understand their target market and develop products that cater to the ever-changing needs and desires of consumers. Product research plays a vital role in this process, providing valuable insights that can inform strategic decision-making and drive innovation.This product research report delves into the key findings of a comprehensive study conducted to assess the viability and market potential of a proposed new product offering. The research methodology employed a multi-pronged approach, leveraging a combination of quantitative and qualitative data collection methods to gain a well-rounded understanding of the target consumer segment and the competitive landscape.The first phase of the research involved an in-depth analysis of secondary data sources, including industry reports, market researchstudies, and relevant academic literature. This provided a solid foundation of contextual information, allowing the research team to identify prevailing trends, emerging consumer behaviors, and potential areas of opportunity. The insights gleaned from this phase were instrumental in shaping the subsequent primary research efforts.The primary research component consisted of a series of focus group discussions and one-on-one interviews with a representative sample of the target consumer demographic. Participants were carefully selected based on their demographic characteristics, purchasing habits, and product preferences. The discussions and interviews were designed to elicit valuable feedback on the proposed product concept, including perceived benefits, potential pain points, and overall level of interest.The focus group sessions were structured to encourage open-ended dialogue, allowing participants to share their honest opinions and experiences. Participants were presented with detailed product information, including prototypes and mock-ups, and were encouraged to engage in interactive discussions, offering their insights and suggestions. The one-on-one interviews, on the other hand, provided a more intimate setting for in-depth exploration of individual perspectives and preferences.In addition to the qualitative research, the study also incorporated a quantitative survey component to gather data on consumer attitudes, purchase intentions, and willingness to pay. The survey was distributed to a larger sample of the target market, enabling the research team to identify statistically significant trends and patterns. The survey questions were carefully crafted to address key variables such as product features, pricing, and brand perceptions.The data collected from both the qualitative and quantitative research phases was meticulously analyzed and synthesized to uncover key insights and trends. The research team employed a range of analytical techniques, including thematic analysis, regression modeling, and conjoint analysis, to extract meaningful insights and identify patterns that could inform strategic decision-making.One of the most significant findings from the research was the strong consumer demand for a product that addresses a prevalent pain point in the market. The focus group discussions and interviews revealed a widespread frustration among consumers with the current offerings in the product category, highlighting the need for a more innovative and user-friendly solution. Participants expressed a willingness to pay a premium for a product that could effectively address their concerns and provide a superior user experience.The survey data further corroborated this finding, with a substantial proportion of respondents indicating a high likelihood of purchasing the proposed product. Additionally, the conjoint analysis revealed that certain product features, such as enhanced durability and intuitive user interface, were particularly valued by consumers and could serve as key differentiators in the market.Another key insight from the research was the importance of brand positioning and marketing communication. The focus group discussions highlighted the significant role that brand reputation and trust play in consumer decision-making within the product category. Participants emphasized the need for a brand that not only delivers a high-quality product but also aligns with their personal values and lifestyle preferences.The survey data provided further validation of this finding, with brand image and perceived quality emerging as significant drivers of purchase intent. This underscores the importance of crafting a compelling brand narrative and effectively communicating the unique value proposition of the proposed product to the target market.The research also uncovered valuable insights into the competitive landscape. The analysis of secondary data sources revealed that while there are several existing players in the market, the proposedproduct concept could offer a distinctive and differentiated value proposition. The focus group discussions and interviews highlighted specific areas where current offerings fall short, presenting opportunities for the proposed product to capitalize on unmet consumer needs.Furthermore, the survey data indicated that a significant proportion of consumers are actively seeking innovative solutions in the product category, suggesting that the market is primed for disruptive offerings that challenge the status quo. This finding reinforces the potential for the proposed product to gain a competitive advantage and carve out a unique market position.In conclusion, the comprehensive product research conducted has yielded a wealth of valuable insights that can inform the strategic decision-making process and guide the development of the proposed product offering. The research findings highlight the strong consumer demand for a differentiated solution that addresses prevalent pain points, the importance of brand positioning and marketing communication, and the potential for the proposed product to capitalize on unmet needs in the competitive landscape.Based on these insights, the research team recommends proceeding with the development and launch of the proposed product, with a focus on refining the product features, crafting a compelling brandnarrative, and implementing a targeted marketing strategy to effectively reach and engage the target consumer segment. By leveraging the insights gleaned from this research, the company can position itself for success and establish a strong foothold in the market.。
学校调查初高中睡眠英语作文
学校调查初高中睡眠英语作文The importance of adequate sleep for adolescents cannot be overstated. As students navigate the academic and social challenges of middle and high school, ensuring they get the recommended 8-10 hours of sleep per night is crucial for their physical, mental, and emotional well-being. However, studies have shown that many young people are not meeting this benchmark, leading to a host of potential issues.To better understand the current sleep habits of students in our community, a comprehensive survey was conducted across several middle and high schools. The results provide valuable insights that can inform strategies to promote healthier sleep practices and support student success.The survey gathered data from over 1,000 students ranging from 6th to 12th grade. Participants were asked to report their average bedtime and wake-up time on both school nights and weekends, as well as any difficulties they experience in falling or staying asleep. Additional questions addressed factors that may contribute to sleepdeprivation, such as academic workload, extracurricular activities, and technology use before bed.The findings reveal a concerning trend – the majority of students are not getting the recommended amount of sleep. On school nights, the average reported bedtime was 10:30 pm, with students waking up around 6:30 am, resulting in just 8 hours of sleep. However, the recommended sleep duration for this age group is 8-10 hours. Moreover, nearly 40% of respondents indicated that they frequently have trouble falling asleep, staying asleep, or waking up feeling rested.When examining the data by grade level, the sleep deficit appears to worsen as students progress through middle and high school. Sixth graders reported the highest average of 8.5 hours of sleep per school night, while 12th graders averaged just 7.5 hours. This pattern aligns with the well-documented "sleep phase delay" that occurs during adolescence, where circadian rhythms shift, making it more difficult for teens to fall asleep at an earlier hour.Interestingly, the survey also highlighted significant differences in sleep habits between school nights and weekends. On weekends, the average bedtime was nearly an hour later, and students reported sleeping in an additional 1-2 hours. This suggests that many young people are attempting to "catch up" on sleep they miss during theschool week, which can disrupt their natural sleep-wake cycle.When asked about factors contributing to their sleep difficulties, students cited a variety of causes. The most common were academic stress and pressure (68%), extracurricular commitments (54%), and the use of electronic devices before bed (47%). These findings align with existing research, which has linked excessive homework, busy schedules, and screen time exposure to poor sleep quality in adolescents.The implications of insufficient sleep for students are significant. Lack of sleep has been shown to negatively impact cognitive function, academic performance, emotional regulation, and physical health. Drowsy students may struggle to concentrate in class, retain information, and complete assignments effectively. They are also at greater risk of developing mental health issues such as depression and anxiety.To address this pressing concern, a multifaceted approach is required. Schools should consider implementing evidence-based strategies to promote healthy sleep habits, such as educating students and families on sleep hygiene, adjusting class schedules to allow for earlier bedtimes, and limiting the amount of homework assigned on school nights. Partnerships with community organizations and healthcare providers can also expand access toresources and support.Additionally, students themselves can take an active role in prioritizing sleep. This may involve setting consistent bedtime routines, minimizing screen time before bed, and advocating for reasonable academic and extracurricular demands. By empowering young people to make informed choices about their sleep, we can help them develop lifelong habits that support their overall well-being.The survey findings underscore the critical need to address the sleep crisis affecting middle and high school students. By understanding the scope of the problem and its contributing factors, educators, parents, and policymakers can collaborate to implement effective solutions. Ensuring adolescents get the sleep they need is not only crucial for their academic success but also their long-term physical and mental health. With a concerted effort, we can help our students thrive by prioritizing this fundamental aspect of their development.。
学生做家务的调查英语作文
In the contemporary educational landscape, cultivating well-rounded individuals with life skills is as important as academic proficiency. One such skill that often goes overlooked yet significantly contributes to personal development is students’ involvement in household chores. This essay aims to delve into this topic by presenting a comprehensive survey-based analysis on students' participation in domestic tasks from various perspectives.The initial phase of our investigation revolved around understanding the frequency and type of chores students engage in. The data revealed that while most students (approximately 75%) occasionally partake in basic tasks like cleaning their rooms or setting the dinner table, fewer students (around 40%) regularly participate in more complex chores such as cooking meals or doing laundry. This disparity suggests that there is room for improvement in fostering a culture where students are not only encouraged but also taught the intricacies of managing a home.From an educational standpoint, involving students in household chores instills a sense of responsibility and accountability from an early age. It serves as a practical application of time management, organisational skills, and fosters independence. Moreover, it bridges the gap between theoretical knowledge and real-world applications, thereby enhancing life skills education. Our findings showed that students who actively contribute to housework tend to have better problem-solving abilities and exhibit more resilience when faced with challenges.Psychosocially, sharing household duties can foster family cohesion and mutual respect. When students understand that they play a pivotal role in maintaining a functional home environment, it enhances their empathy and develops a sense of belonging. However, the survey also highlighted that parental expectations and attitudes towards children's involvement in chores greatly influence student engagement. Families that view chores as a shared familial obligation had a higher percentage of student participation compared to those that consider them solely as adult responsibilities.Economic implications were also considered. As students learn to cook, clean, and manage a household, they potentially reduce future dependence on paid services. They develop a clearer understanding of the value of money and labor, which is instrumental in shaping their financial literacy and work ethics.Healthwise, performing household chores has been linked to improved physical health and psychological well-being. Engaging in regular physical activities like cleaning, washing dishes, and gardening can serve as a form of exercise, contributing to a healthy lifestyle. Furthermore, the accomplishment derived from completing tasks independently can boost self-esteem and mental health.Despite these benefits, barriers exist. Academic pressure and extracurricular activities often consume much of a student’s time, leading to limited opportunities for participating in household chores. Therefore, striking a balance between academics and life skills education is crucial.In conclusion, the multifaceted importance of students engaging in household chores cannot be overstated. It is a key aspect of their holistic development. Educational institutions, parents, and society at large should collaboratively promote and integrate life skills training, including household chores, into the curriculum. This would not only empower students with essential life skills but also equip them with the tools necessary for successful adulthood.This survey, while providing valuable insights, opens up avenues for further research to explore strategies to enhance student participation in household chores effectively. The ultimate goal is to nurture a generation that appreciates the value of hard work, understands the dynamics of a shared living space, and is capable of managing their lives efficiently, both within and beyond the confines of academia.Word Count: 493 wordsNote: The above response is a condensed version due to the character limit.A full-length 1286-word essay would include more detailed statistics, quotes from participants, case studies, and a deeper exploration of each perspective mentioned.。
你工作中很成功的一个项目的英语作文
你工作中很成功的一个项目的英语作文The Successful Launch of Our New Product LineIt is with great pride and satisfaction that I reflect on the successful launch of our company's latest product line. This project was a true testament to the power of teamwork, strategic planning, and unwavering dedication, and it has cemented our position as a leading innovator in our industry.The journey began over a year ago when our executive team recognized the need to expand our product offerings to meet the evolving demands of our customers. We knew that in order to stay ahead of the competition, we would need to develop a line of products that not only addressed the pain points of our target market but also showcased our commitment to innovation and quality.The first crucial step was assembling a cross-functional team of experts from various departments, including research and development, marketing, operations, and finance. This diverse groupof individuals brought a wealth of knowledge and expertise to the table, and their collaborative efforts were instrumental in shaping the direction of the project.One of the key challenges we faced early on was conducting thorough market research to understand the needs and preferences of our customers. We implemented a comprehensive survey, held focus groups, and analyzed industry trends to gain a deep understanding of the competitive landscape and the features that would be most valued by our target audience.Armed with this invaluable data, our research and development team got to work, meticulously designing and prototyping a series of products that we believed would resonate with our customers. The process was not without its challenges, as we navigated complex technical hurdles and engaged in numerous rounds of testing and refinement. However, the dedication and innovation of our R&D experts ensured that we remained on track and continued to push the boundaries of what was possible.Concurrent with the product development phase, our marketing team sprang into action, crafting a compelling brand identity and developing a comprehensive marketing strategy. They worked closely with our designers to create eye-catching packaging and promotional materials that would capture the essence of our newproduct line and effectively communicate its unique value proposition.As the launch date approached, we turned our attention to the logistical challenges of bringing our products to market. Our operations team worked tirelessly to ensure that our supply chain was optimized, our production processes were streamlined, and our distribution channels were primed and ready to handle the anticipated demand.The culmination of our efforts came on the day of the official product launch, which was met with overwhelming enthusiasm from our customers. The launch event was a resounding success, with throngs of eager consumers lining up to be among the first to experience our new offerings. The positive feedback we received was truly gratifying, and it validated the countless hours of hard work and dedication that had gone into this project.In the months that followed, our new product line continued to exceed our expectations, consistently outperforming our sales projections and cementing our reputation as a forward-thinking and innovative company. The success of this project has had a ripple effect throughout our organization, inspiring our teams to continue pushing the boundaries of what is possible and to never settle for anything less than excellence.One of the most remarkable aspects of this project's success was the level of collaboration and communication that was fostered throughout the entire process. Our cross-functional team worked seamlessly together, breaking down silos and sharing information freely. This allowed us to identify and address challenges quickly, make informed decisions, and ultimately deliver a product that exceeded the expectations of our customers.Another key factor in our success was the unwavering support and guidance of our executive leadership. They provided the necessary resources, empowered our team to take calculated risks, and championed our efforts at every turn. Their unwavering commitment to innovation and their willingness to invest in the long-term success of the company were instrumental in driving this project to its successful conclusion.As I look back on this project, I am filled with a deep sense of pride and accomplishment. The successful launch of our new product line has not only strengthened our market position but has also inspired our team to continue reaching for new heights. We have proven that with a clear vision, a talented and dedicated team, and a commitment to excellence, anything is possible.Moving forward, we are already laying the groundwork for our nextbig project, drawing on the lessons learned and the momentum gained from this recent success. We are confident that by continuing to innovate, collaborate, and stay true to our core values, we will be able to deliver even more groundbreaking products and services that will cement our reputation as a true industry leader.In conclusion, the successful launch of our new product line is a testament to the power of teamwork, strategic planning, and unwavering dedication. It has been a truly rewarding experience, and I am honored to have been a part of this remarkable journey. As we look to the future, I am excited to see what other challenges and opportunities lie ahead, and I am confident that our team is more than ready to rise to the occasion.。
网络安全 参考文献
网络安全参考文献参考文献:1. Wang, Q., Chen, J., & Lou, W. (2013). Optimized Checkpointing and Recovery for High-Speed Networks. IEEE Transactions on Parallel and Distributed Systems, 24(5), 1013-1022.2. Khan, K., Wang, H., & Lu, J. (2020). A Comprehensive Survey of Internet-of-Things (IoT) Authentication and Access Control Mechanisms. ACM Computing Surveys, 53(3), 1-37.3. Zhu, Q., Ren, Z., & Ma, C. (2019). Blockchain-Based Cybersecurity Framework for IoT Systems. IEEE Internet of Things Journal, 6(1), 1566-1575.4. Zou, D., Zhang, Y., Venkatasubramanian, N., & Vasilakos, A. (2015). A Survey on Security and Privacy Issues in Internet-of-Things. IEEE Internet of Things Journal, 1(1), 1-1.5. Lim, D., Luo, J. J., Sharma, P., & Van Oorschot, P. C. (2019). Security and Privacy in Emerging Pervasive Computing Models: A Survey. IEEE Communications Surveys & Tutorials, 21(1), 473-520.6. Liu, Y., Jin, H., & Gao, L. (2020). Deep Learning for Malware Detection and Analysis: Foundations and Advances. IEEE Access, 8, 144403-144421.7. Gao, Y., Gao, L., Zhang, H., Guo, S., & Xu, S. (2019). Machine Learning in Intrusion Detection: A Comprehensive Survey. IEEE Communications Surveys & Tutorials, 21(3), 2664-2692.8. Buczak, A. L., & Guven, E. (2016). A Survey of Data Mining and Machine Learning Methods for Cyber Security Intrusion Detection. IEEE Communications Surveys & Tutorials, 18(2), 1153-1176.9. Cheng, P. C., Qu, G., & Zhang, W. (2018). A Survey onNetwork Anomaly Detection Using Machine Learning Techniques. IEEE Transactions on Network and Service Management, 15(1), 276-288.10. Tan, Y., Zhang, Z., & Xia, G. S. (2019). AI-Based Network Security: Intrusion Detection and Defense. IEEE Network, 33(5), 664-670.。
调查结果类的英语作文
调查结果类的英语作文### Results of the Survey.English Answer:Target Audience: The survey was conducted among individuals of various ages, genders, and backgrounds to gather comprehensive insights. The participants represented a diverse demographic, providing a well-rounded perspective on the topic under investigation.Methodology: A comprehensive survey questionnaire was designed to capture detailed information from the respondents. The questions were carefully crafted to elicit meaningful responses and address specific aspects of the research inquiry. The questionnaire was distributed through various channels, including email, social media, and personal networks.Response Rate: The survey achieved a significantresponse rate, indicating a high level of interest and engagement among the target audience. The substantial number of responses allowed for robust statistical analysis and meaningful interpretation of the data.Key Findings:Demographic Characteristics: The survey gathered valuable information about the participants' demographic characteristics, including age, gender, education level,and occupation.Survey Questions: The survey questions were designedto address specific research objectives. The responses provided insights into the participants' knowledge, attitudes, behaviors, and experiences related to the topic under investigation.Data Analysis: The survey data was meticulously analyzed using appropriate statistical techniques. The results were presented in various formats, including tables, graphs, and charts, to illustrate key findings and patterns.Conclusions: Based on the analysis of the survey data, the research team formulated insightful conclusions that addressed the research questions. The conclusions provided evidence-based insights and informed recommendations for future actions.### 调查结果。
高考英语专项训练30 极端天气(“暴雪、寒潮、冷空气”,哈工大“暖廊”)
专项训练30极端天气一、话题语法填空冷空气National Meteorological Center on Monday renewed orange warning for blizzards(暴风雪), the second-highest level, and blue warning for cold waves, the lowest level.Blizzards are expected in some parts of southeastern Inner Mongolia autonomous region, Heilongjiang, as well as most parts of Jilin and Liaoning provinces. Among them, some areas will see additional snow depth of 10-20 centimeters, with some areas reaching over 30 centimeters.Cold waves will affect regions including eastern Inner Mongolia, central and southern parts of Northeast China, eastern parts of the Yellow and Huai rivers Basin, as well as eastern and southern parts of the Yangtze River Basin.Snow brought suspensions(暂停活动)of primary schools, middle schools and kindergartens, as well as off-campus educational institutions in six districts in the main urban area of Harbin, Heilongjiang province, on Monday.Changchun, the capital of Jilin, issued an urgent notice on Sunday afternoon, requiring that students of primary and secondary schools in the city will have online classes at home starting on Monday, in order to ensure the safety of teachers and students.哈工大“暖廊”Cold temperatures, biting wind, heavy snow and slippery roads are the common challenges that trouble or even interrupt winter commutes. However, for students and faculty at a college in Northeast China, who have been severely affected by the recent cold wave and blizzard, their commute has been made easy, warm and safe thanks to the newly built skywalks on campus.In stark contrast, students at Harbin Institute of Technology in Harbin, the capital city of Northeast China's Heilongjiang province, have experienced an entirely different scenario.They comfortably move between classrooms, libraries, cafeterias, dormitories, and the gym in short sleeves through the skywalks, all within a 5-minute walk. Some students have even been spotted enjoying ice cream while admiring the snowy scenery along the pathways.Praise and admiration have poured in for the usefulness of the sky bridges and the thoughtfulness of the college. One comment reads, "Blizzard alert? Don't worry. The skywalks take good care of me." Another said, "Thanks for the skywalks, now I can wear light clothes even in below-zero temperatures."The university launched the construction of the sky bridges on campus in 2022, aiming to effectively mitigate the impact of extreme weather on campus life and enhance convenience for both faculty and students.With a total length of 1,330.13 meters, the sky bridges are built in three phases. On Nov 7, the second phase of the walkway system was fully operational and open for trial use. Currently, 881.81 meters of skywalks are accessible.In addition to connecting various school facilities, the sky bridges as the school's new landmark will serve various functions in the future. Some sections will be equipped with power outlets, LED lighting, networkinterfaces, WiFi and even fitness equipment to offer more spaces for study, relaxation, activities and workouts.二、话题阅读1.C 2.C 3.B 4.D【来源】湖南师范大学附属中学2023-2024学年高二上学期第一次月考英语试题【导语】这是一篇说明文。
流域污染如何治疗英语作文
Growing up by the banks of a once pristine river, Ive witnessed firsthand the devastating effects of water pollution. The river, a lifeline to our community, has been slowly choking under the weight of industrial waste, agricultural runoff, and urban sewage. Its a heartwrenching sight to see the life within it dwindle, the once clear waters now murky and lifeless. The urgency to heal this wound in our environment has never been more pressing.The treatment of river basin pollution is a complex and multifaceted issue, requiring a comprehensive approach that addresses the root causes and implements sustainable solutions. Heres a narrative of my personal journey and insights into this critical environmental challenge.Understanding the ProblemThe first step in treating river basin pollution is understanding its sources. During my high school years, I participated in a school project where we conducted a survey of the local river. We discovered that the primary pollutants were industrial chemicals, pesticides from nearby farms, and untreated sewage from the town. The realization was a stark reminder of how our daily activities contribute to the degradation of our natural resources.Raising AwarenessArmed with this knowledge, our class initiated a campaign to raise awareness about the pollution. We organized seminars, createdinformational posters, and used social media to spread the word. The response was overwhelming, with many community members expressing their concern and willingness to contribute to the solution.Implementing SolutionsThe next phase was implementing solutions. We advocated for stricter regulations on industrial waste disposal and collaborated with local farmers to promote the use of organic farming practices. This was not without its challenges old habits die hard, and resistance from some sectors was strong. However, with persistent dialogue and the presentation of alternative solutions, we began to see a shift.Engaging the CommunityCommunity engagement is crucial in the fight against river basin pollution. We organized cleanup drives where residents came together to remove debris from the riverbanks. It was a small step, but it symbolized our collective commitment to restoring the rivers health.Technological InterventionsTechnology also plays a vital role in treating water pollution. We explored the use of water treatment plants and filtration systems that could process the polluted water and return it to the river in a cleaner state. While this was a more expensive solution, it was a necessary investment for the longterm health of our river.Monitoring and MaintenanceFinally, we recognized the importance of ongoing monitoring and maintenance. We set up a system for regular water quality checks and established a local environmental group to oversee these efforts. This group also serves as a watchdog, ensuring that any new pollution sources are quickly identified and addressed.Lessons LearnedThroughout this journey, Ive learned that treating river basin pollution is not a onetime effort but a continuous process. It requires the cooperation of government, industry, and the community. It also demands a shift in mindset, where we all take responsibility for the health of our environment.The Road AheadAs I look to the future, I am hopeful but also realistic. The battle against pollution is ongoing, and there will be setbacks. However, with each step we take towards a cleaner river, we are not only preserving a vital resource but also ensuring a healthier, more sustainable future for generations to come.In conclusion, treating river basin pollution is a collective responsibility that requires awareness, action, and perseverance. Its a journey that I amproud to be a part of, and one that I hope will inspire others to join in the quest to heal our waterways.。
做调查的英语作文
做调查的英语作文As the sun began to set, casting a warm glow over the school courtyard, our class gathered around the assignment boardwith a mix of excitement and trepidation. Our English teacher, Mrs. Thompson, had just announced our next project: a comprehensive survey on the reading habits of our peers. The objective was not only to collect data but also to analyze it and present our findings in a well-structured English essay.The first step in our survey process was to define the scope and purpose. We decided to focus on the types of booksstudents preferred and the amount of time they dedicated to reading each week. With the help of our teacher, we crafted a series of questions that would provide us with the necessary insights. The questions ranged from multiple-choice to open-ended, allowing for a variety of responses.Next, we moved on to the methodology. We chose a random sampling technique, selecting students from different grades and classes to ensure a diverse representation. Our English teacher emphasized the importance of ethical considerations, reminding us to keep the responses confidential and topresent the data accurately.Data collection was an adventure in itself. Armed with our printed questionnaires, we approached our fellow students during their breaks and after school. Some were eager toshare their reading habits, while others needed a bit ofpersuasion. It was fascinating to see the different attitudes towards reading among our peers.Once the data was collected, we dove into the analysis phase. We categorized the responses by age, gender, and reading preferences. It was surprising to discover that the majority of our peers preferred fiction over non-fiction, with fantasy and mystery novels being the most popular genres. Additionally, we found that the average time spent reading per week was significantly lower than we had initially anticipated.With our analysis complete, we turned our attention to the composition. We began with a captivating introduction that outlined the purpose of our survey and the significance of understanding reading habits in the digital age. The body of our essay was divided into sections, each detailing a different aspect of our findings, supported by the data we had collected.The conclusion was perhaps the most challenging part of the essay. We had to synthesize our findings into a coherent summary, offering insights into the implications of our data. We discussed the potential impact of our findings on educational policies and the importance of promoting aculture of reading among students.Finally, we proofread our essay, checking for grammatical errors, clarity, and coherence. We wanted to ensure that our composition was not only informative but also engaging for the reader.In the end, our survey-based English composition was a resounding success. It not only improved our research and analytical skills but also our ability to communicate complex ideas in a clear and concise manner. Most importantly, it sparked a renewed interest in reading among our classmates, as we began to share book recommendations and discuss the stories that had captured our imaginations.As we handed in our essays, we couldn't help but feel a sense of accomplishment. The process had been challenging, but the experience had been invaluable. We had learned that a well-conducted survey could reveal fascinating insights about our community, and that the art of writing could bring those insights to life.。
英文作文我的研究方法
My Research MethodologyIn conducting any research endeavor, the methodology employed plays a pivotal role in ensuring the validity, reliability, and reproducibility of findings. My approach to research methodology is grounded in a systematic and rigorous framework that combines both quantitative and qualitative methods, tailored to the specific needs and objectives of the research question at hand. Here, I outline the key components of my research methodology, highlighting the steps I follow to ensure a comprehensive and insightful study.1. Defining the Research Problem and ObjectivesMy research journey begins with a thorough understanding of the research problem and the objectives I aim to achieve. This involves conducting a preliminary literature review to identify gaps in existing knowledge, define the scope of my inquiry, and articulate clear and measurable research questions. By doing so, I ensure that my methodology is focused and aligned with the purpose of the study.2. Choosing the Appropriate MethodologyBased on the nature of the research problem and objectives, I select a methodology that best suits the requirements. This decision is influenced by factors such as the level of precision needed, the availability of data, and the suitability of the research design for the research question. I often employ a mixed-methods approach, combining both quantitative and qualitative methods, to capture a more nuanced and comprehensive understanding of the phenomenon under investigation.3. Designing the Research PlanOnce the methodology is chosen, I proceed to design a detailed research plan. This includes specifying the research design (e.g., experimental, survey, case study), determining the sample size and sampling technique, outlining the data collection methods (e.g., surveys, interviews, observations, secondary data analysis), and planning for data analysis and interpretation. The research plan is a roadmap that guides me through each stage of the research process, ensuring that all necessary steps are taken and that no critical aspect is overlooked.4. Data CollectionData collection is a crucial phase of my research methodology. Depending on the research design, I employ various methods to gather information. For quantitative studies, I might use surveys or experiments to collect numerical data that can be analyzed statistically. For qualitative studies, I rely on interviews, focus groups, and observations to gather rich, descriptive data that provides insights into participants' experiences, perceptions, and behaviors. I ensure that data collection procedures are ethical, respectful, and in compliance with all relevant regulations and guidelines.5. Data Analysis and InterpretationOnce data collection is complete, I move on to data analysis and interpretation. For quantitative data, I employ statistical software to analyze the data, looking for patterns, relationships, and differences. For qualitative data, I use content analysis, thematic analysis, or other qualitative methods to identify themes, categories, and narratives emerging from the data. Throughout this process, I strive for objectivity, rigor, andtransparency in my analysis, ensuring that my findings are grounded in the data and supported by sound reasoning.6. Reporting and Presenting ResultsFinally, I present my findings in a clear, concise, and compelling manner. This involves writing a research report or paper that outlines the research problem, methodology, data collection and analysis procedures, and key findings. I also ensure that my results are discussed in the context of existing literature, highlighting their significance and implications for theory, practice, and future research. Additionally, I may present my findings at conferences, workshops, or other forums, sharing my insights and engaging in constructive dialogue with my peers.In conclusion, my research methodology is a systematic and rigorous approach that encompasses defining the research problem, choosing the appropriate methodology, designing the research plan, collecting and analyzing data, and reporting and presenting results. By following this methodology, I am able to conduct high-quality research that contributes to the advancement of knowledge and understanding in my field.。
- 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。
SUPPLEMENTAR Y INFORMATIONThe calculated elastic constants and structural parameters for240M2AX phases are given in Tables IX to XVIII.The tables are split according to the different M elements and contain the a,c,d MX,and d MA structural parameters as well as thefive elastic constants and three elastic moduli.For the17phases that were found to be unstable(see discussion in Section2.4)only the hexagonal lattice parameters of the lowest energy stationary point are given.2MX MA1112133344Sc2AlC 3.29715.04 1.242 2.5171755933191448857140 Sc2AlN 3.21714.53 1.231 2.40121360482287210777187 Sc2SiC 3.30113.95 1.242 2.24720362482347410676184 Sc2SiN 3.21913.50 1.231 2.14323165742669612889218 Sc2PC 3.36512.77 1.250 1.94419095712338812170175 Sc2PN 3.40311.89 1.236 1.737197899527710613780200 Sc2SC 3.45111.95 1.225 1.76324769592678912691221 Sc2SN 3.36811.79 1.192 1.7552617578284109141101244 Sc2GaC 3.30614.70 1.240 2.4331746437179408953133 Sc2GaN 3.23214.11 1.230 2.29821460572147011075183 Sc2GeC 3.32414.06 1.235 2.27920061482166810372175 Sc2GeN 3.24413.63 1.218 2.19022963672428412284204 Sc2AsC 3.38013.26 1.229 2.08618683662187611366165 Sc2AsN 3.37612.55 1.216 1.9211521041062399213157148 Sc2CdC 3.32415.63 1.230 2.678152572713012733692 Sc2CdN 3.24815.12 1.217 2.5631737637174159240106 Sc2InC 3.35515.36 1.226 2.6141755933173418654135 Sc2InN 3.27914.90 1.202 2.52420460471995910268167 Sc2SnC 3.38014.87 1.211 2.5071905842181559363154 Sc2SnN 3.30614.48 1.184 2.43721760532206811075184 Sc2TlC 3.37515.31 1.221 2.6071805430166378455135 Sc2TlN 3.30414.86 1.193 2.52320562481925410265162 Sc2PbC 3.41115.10 1.198 2.5771865735160468758142 Sc2PbN 3.34214.68 1.166 2.50421261451865310167165 TABLE IX:Calculated lattice parameters(in˚A),elastic constants,and moduli(in GPa)of the Sc2AX phases.242MX MA1112133344Ti2AlC 3.07113.73 1.147 2.2863026261269109138113267 Ti2AlN 2.99913.63 1.165 2.2433096691280125155118281 Ti2SiC 3.05712.85 1.179 2.03430081110314140169119288 Ti2SiN 2.99012.83 1.188 2.019284108125359149183115285 Ti2PC 3.19111.50 1.166 1.710252123148343168187109273 Ti2PN 3.16111.34 1.122 1.712329113133384174200135331 Ti2SC 3.20811.27 1.118 1.7003319897348157177134321 Ti2SN 3.20211.06 1.051 1.71532189118341135181121297 Ti2GaC 3.08313.43 1.143 2.2153036663263101139109260 Ti2GaN 3.01613.33 1.154 2.17829878100276118159109265 Ti2GeC 3.09313.01 1.157 2.0972787596283118152106257 Ti2GeN 3.04212.94 1.154 2.08125411311829812216794236 Ti2AsC 3.19512.12 1.138 1.89222514712328614216987224 Ti2AsN 3.20111.72 1.086 1.844290109125326148181114281 Ti2CdC 3.10614.54 1.127 2.50925371472033111667168 Ti2CdN 3.08214.15 1.088 2.45027083582356813084208 Ti2InC 3.14814.20 1.110 2.44028265552408612898234 Ti2InN 3.09514.05 1.111 2.401229561062489213883208 Ti2SnC 3.18013.79 1.111 2.33526078702549313593226 Ti2SnN 3.18013.46 1.045 2.32023886812547913679198 Ti2TlC 3.17714.22 1.098 2.45727871512267412591219 Ti2TlN 3.16713.85 1.044 2.41824678692377412981200 Ti2PbC 3.23114.01 1.080 2.42323590532116611973182 Ti2PbN 3.23913.650.998 2.41523592562115612168173 TABLE X:Calculated lattice parameters(in˚A),elastic constants,and moduli(in GPa)of the Ti2AX phases.252MX MA1112133344V2AlC 2.91413.11 1.119 2.15933971111310147175132316 V2AlN 2.87713.13 1.122 2.16032560127341140180128310 V2SiC 2.96511.96 1.114 1.877309117180325189211126315 V2SiN 2.94412.02 1.083 1.922286142171344148209102263 V2PC 3.07910.90 1.070 1.654376113168386204227154376 V2PN 3.04611.03 1.038 1.720350135176384153229122312 V2SC 3.12410.76 1.012 1.679335101147330125199114286 V2SN∗ 3.17710.500.909 1.715V2GaC 2.94212.85 1.098 2.11433481111299138175125302 V2GaN 2.93312.73 1.072 2.11028171142293128174105263 V2GeC 3.01612.18 1.070 1.976289122134279142182105263 V2GeN 3.00712.10 1.035 1.98927414615329212119487226 V2AsC 3.11311.42 1.040 1.816330124137320161197124307 V2AsN 3.08411.52 1.011 1.86830714514534510820394245 V2CdC 2.99513.85 1.048 2.41422801042057712084203 V2CdN 2.97413.74 1.028 2.40830881992498215895236 V2InC 3.03013.59 1.053 2.3453068593271103158104256 V2InN 3.04113.33 1.001 2.332244911122648915480204 V2SnC 3.13312.920.980 2.251224751002478013875189 V2SnN 3.13812.740.924 2.2611761331022575214343117 V2TlC 3.11513.440.981 2.37919541932257011969173 V2TlN 3.15912.980.884 2.362219164682256614056148 V2PbC 3.20413.140.920 2.364232104611955312363161 V2PbN 3.20612.980.867 2.378211148462001712239105 TABLE XI:Calculated lattice parameters(in˚A),elastic constants,and moduli(in GPa)of the V2AX phases.∗V2SN was found to be unstable(cf.Section2.4).For this structure we only report the lattice parameters of the lowest energy stationary point with hexagonal symmetry.262MX MA1112133344Cr2AlC 2.84812.68 1.074 2.09636584102369140186138332 Cr2AlN 2.83512.73 1.063 2.119279661503688418492237 Cr2SiC 2.87811.89 1.068 1.9053071291674008121587229 Cr2SiN 2.88011.85 1.028 1.9352491651904104222249138 Cr2PC 3.00210.88 1.027 1.69329514119735313922498257 Cr2PN 2.99510.94 1.037 1.697294109172400119210101262 Cr2SC 3.11110.470.949 1.6683241271362878119288229 Cr2SN∗ 3.13110.400.932 1.667Cr2GaC 2.87512.50 1.060 2.06631281139325128185114283 Cr2GaN 2.91012.290.995 2.077198941513099416668180 Cr2GeC 2.94212.02 1.024 1.9793081471403337420081213 Cr2GeN 2.97211.790.966 1.9812311681463366219153147 Cr2AsC 3.04211.380.984 1.8612271042032758719562168 Cr2AsN 3.07011.150.897 1.8892851941403346320663171 Cr2CdC 2.92713.58 1.008 2.38631183972477415892230 Cr2CdN 3.00413.200.924 2.37526298722385813974189 Cr2InC 3.02613.050.963 2.29918970952447012764163 Cr2InN 3.06212.720.891 2.289245149882627215667175 Cr2SnC 3.10212.540.926 2.208245142942525715660160 Cr2SnN 3.08712.450.890 2.221247164892853716352141 Cr2TlC 3.09313.160.931 2.359243114222135211370173 Cr2TlN 3.10712.800.868 2.331257157692076014662163 Cr2PbC 3.16112.850.889 2.324239122751713613351136 Cr2PbN 3.15312.780.849 2.345239147461441012239105 TABLE XII:Calculated lattice parameters(in˚A),elastic constants,and moduli(in GPa)of the Cr2AX phases.∗Cr2SN was found to be unstable(cf.Section2.4).For this structure we only report the lattice parameters of the lowest energy stationary point with hexagonal symmetry.272MX MA1112133344Mo2AlC 3.03813.48 1.207 2.16233397144327137196119296 Mo2AlN∗ 2.86214.66 1.412 2.253Mo2SiC 3.11912.39 1.159 1.93831114919233812422594248 Mo2SiN∗ 3.00812.94 1.297 1.937Mo2PC 3.20011.62 1.113 1.79326214821832910522571193 Mo2PN 3.32410.940.965 1.7713032231633297922665179 Mo2SC∗ 3.36611.000.941 1.809Mo2SN 3.34010.960.955 1.7853011961452671920444122 Mo2GaC 3.08413.16 1.168 2.12129498160289127190101257 Mo2GaN 2.87814.51 1.399 2.2292492251723776622449137 Mo2GeC 3.14912.64 1.131 2.0282991511703259721283219 Mo2GeN∗ 3.22912.13 1.029 2.003Mo2AsC 3.22512.17 1.082 1.9592471402003066020952144 Mo2AsN 3.34211.470.950 1.9173091761443297420875201 Mo2CdC 3.08914.37 1.142 2.450287801162567716286218 Mo2CdN 2.91915.36 1.343 2.4982161651513009418560163 Mo2InC 3.14014.01 1.126 2.375270941272868516983215 Mo2InN∗ 3.23513.40 1.010 2.340Mo2SnC 3.20313.52 1.095 2.2852621491333014318456152 Mo2SnN∗ 3.27013.08 1.002 2.268Mo2TlC 3.19114.02 1.085 2.4182411051262306515863167 Mo2TlN 3.32113.300.929 2.395226124772135513658153 Mo2PbC 3.24113.84 1.068 2.392231136115225101583597 Mo2PbN 3.34013.230.944 2.364221891062283514152138 TABLE XIII:Calculated lattice parameters(in˚A),elastic constants,and moduli(in GPa)of the Mo2AX phases.∗Mo2AlN,Mo2SiN,Mo2SC,Mo2GeN,Mo2InN and Mo2SnN were found to be unstable(cf.Sec-tion2.4).For these structures we only report the lattice parameters of the lowest energy stationary point with hexagonal symmetry.282MX MA1112133344Nb2AlC 3.12513.91 1.238 2.23931090118289139173116285 Nb2AlN 3.00914.38 1.349 2.247309136132331144194112281 Nb2SiC 3.23312.38 1.197 1.899303131169333183209122305 Nb2SiN 3.24212.15 1.146 1.891279167177316170213103265 Nb2PC 3.30311.61 1.158 1.745369113171385187226145358 Nb2PN 3.29411.53 1.119 1.763296129192352142219102266 Nb2SC 3.31211.65 1.110 1.803309106159310118197101258 Nb2SN 3.14512.29 1.294 1.779317130197328144223106273 Nb2GaC 3.15313.59 1.214 2.18330980138262126177108270 Nb2GaN 3.00714.32 1.355 2.226312139135340136198109275 Nb2GeC 3.25912.60 1.166 1.985287126160266159192106268 Nb2GeN 3.26912.35 1.118 1.96926616716129014720091236 Nb2AsC 3.33912.00 1.129 1.870327108155347162204126312 Nb2AsN 3.32211.97 1.091 1.90127413417632511520586226 Nb2CdC 3.17514.65 1.183 2.47928189902328114887217 Nb2CdN 3.17614.40 1.142 2.457271901042307315279202 Nb2InC 3.19614.47 1.188 2.4302917610826710215999247 Nb2InN 3.21514.13 1.131 2.401236871332449415877197 Nb2SnC 3.27313.85 1.141 2.321252961292449916281209 Nb2SnN 3.28213.60 1.088 2.3112111361312567516456151 Nb2TlC 3.23514.47 1.157 2.46027088952407214980204 Nb2TlN 3.31313.75 1.044 2.394105211481647811243115 Nb2PbC 3.31314.10 1.110 2.414228761162107414269177 Nb2PbN 3.38613.510.993 2.38415014387220401283084 TABLE XIV:Calculated lattice parameters(in˚A),elastic constants,and moduli(in GPa)of the Nb2AX phases.292MX MA1112133344Zr2AlC 3.33314.59 1.269 2.38026163632248712592221 Zr2AlN 3.26614.40 1.282 2.319264778923510514194231 Zr2SiC 3.33113.61 1.297 2.1062618310526411615297240 Zr2SiN 3.27813.49 1.290 2.08122411113627212816585217 Zr2PC 3.46712.25 1.282 1.77929099110343142174116285 Zr2PN 3.42712.08 1.233 1.786290114126332152183115284 Zr2SC 3.43512.25 1.233 1.83028894104312135165113275 Zr2SN 3.41812.02 1.178 1.82727499124299124171101252 Zr2GaC 3.34314.25 1.267 2.29526469692168112888214 Zr2GaN 3.28314.04 1.272 2.238262899323710214590224 Zr2GeC 3.34613.82 1.281 2.173249801022489914687218 Zr2GeN 3.30413.64 1.266 2.14422210712624711015678200 Zr2AsC 3.48412.67 1.263 1.90522011412428013116187221 Zr2AsN 3.46012.41 1.210 1.893268103119315138171106263 Zr2CdC 3.34515.36 1.255 2.58520384501732110546121 Zr2CdN 3.33114.87 1.214 2.50323174692055912170175 Zr2InC 3.37615.09 1.241 2.53125162582157311984204 Zr2InN 3.30714.98 1.258 2.48724171892238513481202 Zr2SnC 3.38414.73 1.255 2.42822562902248812980199 Zr2SnN 3.32114.71 1.260 2.418216931022388314070181 Zr2TlC 3.39215.12 1.232 2.54724665572066211778191 Zr2TlN 3.33214.98 1.240 2.50421771952047512969176 Zr2PbC 3.41814.95 1.229 2.51021970672066811771177 Zr2PbN 3.35714.95 1.234 2.50220484902086312761157 TABLE XV:Calculated lattice parameters(in˚A),elastic constants,and moduli(in GPa)of the Zr2AX phases.302MX MA1112133344Hf2AlC 3.27814.39 1.248 2.3492916669256101138105252 Hf2AlN 3.19814.28 1.275 2.2963008098265120158109266 Hf2SiC 3.27713.42 1.274 2.08228584117297128167108266 Hf2SiN 3.21713.34 1.277 2.05725611014930714218299250 Hf2PC 3.42212.04 1.255 1.75531795126368158188129315 Hf2PN 3.37611.89 1.215 1.758317115137374167198128316 Hf2SC 3.38312.06 1.205 1.81132091114334148179126305 Hf2SN 3.34711.92 1.172 1.80927711514829713018697249 Hf2GaC 3.28914.04 1.244 2.266295717224792141101244 Hf2GaN 3.21713.91 1.263 2.21529588105258112160102253 Hf2GeC 3.29813.61 1.255 2.1472697710926410715596238 Hf2GeN 3.25013.44 1.249 2.11124611113727112117087223 Hf2AsC 3.44112.46 1.233 1.880261106135302143175103257 Hf2AsN 3.41312.21 1.190 1.863287107129340150183114284 Hf2CdC 3.29315.15 1.237 2.55125474532014011969174 Hf2CdN 3.27014.69 1.204 2.46825974842246813679198 Hf2InC 3.32714.87 1.218 2.49928166612428213195230 Hf2InN 3.24514.87 1.250 2.46727474982379314791227 Hf2SnC 3.34114.52 1.227 2.402240621032369213984210 Hf2SnN 3.26514.59 1.248 2.399241911142478515276196 Hf2TlC 3.34614.87 1.207 2.51027370632276912986212 Hf2TlN 3.26914.88 1.235 2.484250741042217714278197 Hf2PbC 3.37914.71 1.196 2.48324177702226912677191 Hf2PbN 3.30514.80 1.219 2.482213781071996113460157 TABLE XVI:Calculated lattice parameters(in˚A),elastic constants,and moduli(in GPa)of the Hf2AX phases.312MX MA1112133344Ta2AlC 3.10213.95 1.256 2.231334114130322148193122303 Ta2AlN 2.98414.49 1.382 2.241335175144355154217115293 Ta2SiC 3.23412.32 1.193 1.888312147191348200226126318 Ta2SiN 3.24212.09 1.157 1.866293183188367172230106275 Ta2PC 3.30411.56 1.150 1.740384126185422198243151375 Ta2PN 3.15712.24 1.320 1.741356158221383173255122315 Ta2SC 3.30511.67 1.102 1.81531411017231910420695247 Ta2SN 3.10212.55 1.343 1.793357176197354145246109285 Ta2GaC 3.13313.62 1.229 2.176335106137315137194118294 Ta2GaN 2.98214.45 1.387 2.226333187150364141223107277 Ta2GeC 3.26512.49 1.159 1.964300141169299172206113286 Ta2GeN 3.27512.22 1.124 1.93227118218032715221792241 Ta2AsC 3.34411.93 1.117 1.865343118170374167219129324 Ta2AsN 3.33211.89 1.091 1.8822691461893549421674200 Ta2CdC 3.15014.69 1.202 2.4703121181012539416894238 Ta2CdN 3.13714.55 1.184 2.453282891292527116879205 Ta2InC 3.17614.50 1.201 2.42331384121298108175106265 Ta2InN 3.18214.26 1.164 2.400237931572639117273191 Ta2SnC 3.27313.76 1.136 2.3042621101432709817681211 Ta2SnN 3.28113.53 1.093 2.2902011581492706417644122 Ta2TlC 3.21614.48 1.168 2.452288981142547816584214 Ta2TlN 3.34013.50 1.023 2.353126741492287613643116 Ta2PbC 3.31713.97 1.100 2.393192451332127313563163 Ta2PbN 3.39213.440.997 2.36214415491213151301646 TABLE XVII:Calculated lattice parameters(in˚A),elastic constants and moduli(in GPa)of the Ta2AX phases.32M2AX phase a c d MX d MA C11C12C13C33C44B G E W2AlC 3.01313.68 1.243 2.17630992191358136214110280 W2AlN∗ 2.84114.92 1.461 2.269W2SiC 3.15012.22 1.148 1.90632916223035813025195253 W2SiN∗ 2.89213.92 1.444 2.036W2PC 3.27211.27 1.059 1.7582262162393429224245126 W2PN 3.36710.800.951 1.7503032321623547123062171 W2SC∗ 3.38711.070.921 1.847W2SN∗ 3.16811.91 1.123 1.854W2GaC 3.08713.15 1.174 2.11530111219429812921197252 W2GaN∗ 2.84914.86 1.460 2.254W2GeC 3.18012.44 1.119 1.9903131711983499723480216 W2GeN∗ 3.26411.91 1.025 1.953W2AsC 3.29811.80 1.030 1.920215220210331652273496 W2AsN 3.39111.310.930 1.8963091801483476121370189 W2CdC 3.05014.63 1.189 2.468304741432828517993236 W2CdN 2.86815.83 1.436 2.52137321012934710322699259 W2InC 3.14114.02 1.131 2.3752781201453047618776201 W2InN∗ 3.26413.260.996 2.319W2SnC 3.20513.54 1.100 2.284266165154322620038107 W2SnN∗ 3.29212.96 1.002 2.238W2TlC 3.19214.01 1.091 2.4122351241432536117157153 W2TlN 3.34913.180.921 2.375237149762325114556149 W2PbC∗ 3.25013.81 1.065 2.388W2PbN 3.39113.070.917 2.351211120612172812547124 TABLE XVIII:Calculated lattice parameters(in˚A),elastic constants and moduli(in GPa)of the W2AX phases.∗W2AlN,W2SiN,W2SC,W2SN,W2GaN,W2GeN,W2InN,W2SnN and W2PbC were found to be unstable(cf.Section2.4).For these structures we only report the lattice parameters of the lowest energy stationary point with hexagonal symmetry.33。