科技英语大作业
科技英语作文范文
科技英语作文范文 In recent years, the integration of technology into the educational landscape has transformed the way we learn and teach. From interactive whiteboards to online learning platforms, technology has become an indispensable tool for educators and students alike.
The advent of digital textbooks has made educational materials more accessible and affordable. Students can now carry an entire library in a tablet, reducing the need for heavy backpacks and the cost of physical books. Furthermore, these digital resources are regularly updated, ensuring that students are always studying the most current information.
Online learning platforms have revolutionized the way students engage with their coursework. These platforms provide a flexible learning environment where students can learn at their own pace. They also offer a wealth of resources, such as video lectures, interactive quizzes, and discussion forums, which enrich the learning experience.
科技英语作文大纲
The Evolution and Impact of Technology: AGlobal PerspectiveIn today's world, technology is advancing at an unprecedented rate, transforming the way we live, work, and interact with each other. The impact of technology is felt across all industries and sectors, from medicine and education to entertainment and transportation. In this essay, we will explore the evolution of technology, its current state, and its potential future impact on society. The Evolution of TechnologyThe history of technology is a long and fascinating journey. From the earliest days of fire and tools, to the industrial revolution and the age of electronics, technology has been a driving force of human progress. In recent years, we have witnessed a rapid acceleration in technological advancement, with the emergence of new fields like artificial intelligence, robotics, and biotechnology. One of the most significant developments in recent decades has been the digitization of information. The internet and mobile technology have revolutionized the waywe access and share information, enabling global communication and collaboration on an unprecedented scale. This digital revolution has also led to the creation of new industries and business models, such as e-commerce, social media, and cloud computing.The Current State of TechnologyToday, technology is pervasive in almost every aspect of our lives. We rely on smartphones, laptops, and other devices to stay connected, entertained, and productive. Artificial intelligence and machine learning are being used in a wide range of applications, from self-driving cars to personalized medicine. Robotics is being used to automate manufacturing processes and perform complex tasks in dangerous environments.Despite these advancements, however, there are also concerns about the impact of technology on society. There are worries about privacy, security, and the ethical implications of new technologies. There are also concerns about the economic impact of technology, as it disrupts traditional industries and creates new jobs and skills requirements.The Future Impact of TechnologyLooking ahead, it is clear that technology will continue to play a crucial role in shaping our future. As we move into the era of the fourth industrial revolution, which is being driven by technologies like artificial intelligence, robotics, and the internet of things, we can expect to see even more profound changes in the way we live and work.One of the most exciting areas of potential growth isin the field of artificial intelligence. As AI technology becomes more advanced, it has the potential torevolutionize many industries, including healthcare, transportation, and education. AI-powered robots could assist in surgeries, autonomous vehicles could reduce accidents and traffic congestion, and personalized learning experiences could improve educational outcomes.However, it is also important to consider the potential downsides of this technology. There are concerns about job displacement as AI and robots become capable of performing tasks that were traditionally done by humans. There arealso ethical and privacy implications to consider, as well as the potential for misuse and abuse of AI technology.ConclusionIn conclusion, technology has been and will continue to be a driving force of human progress. It has the potential to bring about remarkable improvements in our lives, but it is also important to be mindful of the potential downsides and to work towards ensuring that technology is used responsibly and ethically. By understanding the evolution and impact of technology, we can better prepare ourselves for the future and harness the power of technology for the benefit of society.**科技演变及其影响：全球视角**在当今世界，科技以前所未有的速度发展，改变了我们生活、工作和相互交往的方式。
科技英语作文
科技英语作文In the 21st century, technology has become an integral partof our daily lives, and its influence is particularlyprofound in the field of education. The advent of theinternet, smartphones, and various educational software has revolutionized the way we learn and teach.One of the most significant impacts of technology oneducation is the shift towards personalized learning. Withthe help of intelligent systems, educators can now tailortheir teaching methods to meet the individual needs of each student. This approach not only enhances the learning experience but also improves the overall effectiveness of education.Another key aspect is the accessibility of information. The internet has opened up a vast repository of knowledge that is available at the click of a button. Students can now research topics in depth, access scholarly articles, and even take online courses from prestigious institutions around the world.Moreover, technology has also facilitated collaborative learning. With tools like video conferencing andcollaborative platforms, students can work together on projects, share ideas, and learn from their peers, regardless of geographical boundaries.However, the integration of technology in education alsopresents challenges. There is a digital divide where not all students have equal access to technological resources. Additionally, the over-reliance on technology can sometimes lead to a decrease in critical thinking and problem-solving skills.In conclusion, technology has brought about significant changes in the education sector. It has the potential to enhance learning outcomes, but it is crucial to address the challenges it presents to ensure that all students can benefit from these advancements. As we move forward, it is essential for educators and policymakers to work together to harness the power of technology for the betterment of education.。
科技英语写作作业
1．理想的调制方法（modulation scheme）与现有方法相比具有带宽(bandwidth)小，实现简单，成本低和误码率(error rate)低的优点。
Ideal modulation schemes have the advantage over now existed methods of narrow bandwidth, simple realization, low costs and2．晶体管transistor确实能放大信号，但它究竟能放大信号多少倍取决于该晶体管类型。
Transistor can magnify signals indeed, but how many times it can do depends on its type.3．在基极（base）接地的情况下，Q5的阻抗(impedance)很高。
With the base grounded, the impedance of Q5 is large. 4．为了让读者更好地理解通讯系统，就必须对信息论information theory有深入的了解。
In order for the readers to know telecommunication system better, we must have a deep understanding of information theory.5．各种集成电路IC的产量较1998年增加了4倍。
The yield of various IC is four times as much as it was in 1988.6．该芯片（dice）是直径diameter为零点零几厘米的一个小方块square。
This dice is a small square with the diameter of several hundredths centimeters.7．传输线transmission line屏蔽(shielding)越好，传输效果越好，传输距离就越远，这是通信常识。
科技英语范文大全
科技英语范文大全实际上科学和技术既有密切联系，又有重要区别。
下面是店铺给大家整理的科技英语范文，供大家参阅!科技英语范文：关于科技的发展With the rapid development of technology, the popularity of the network is more and more widely, more and more people like to make comments on the various events in the network. A relatively rare event or quite shocking events also can be easy to become the center of network public opinion. And the reason of network public opinion happening is that the rapid development of the network makes the rapid dissemination of information. Every small events are likely to become the center of network public opinion. And the second reason is many people have a strong sense of Equal and justice. And the network is a very good platform to make their speech attention and recognition. So that many people like to go to internet to make comments on it. In the course of time the network public opinion has become more and more frequent But the emergence of the network public opinion brings different influence.First of all is the good work public opinion can supervise the false, unfair events,officials, play a supervisory role.But on the other hand, The network of public opinion also caused a lot of bad influence.Such as Human flesh search also easy to cause the invasion of privacy.科技英语范文：Is Science DangerousThe rapid development of science and technology has brought about great changes to human life, including great harms and disasters .Then people enter into endless argument about whether science is dangerous or not.So many examples can be figured out to prove the danger of science. Advanced technology can be easily manipulated by irresponsible persons as well as terrorist. Such as the Disaster 911, airplanes fly into buildings, fire burning, huge structures collapse, a lot of victims such as intellectual and business elites were sacrificed. Besides, As technology becomes more powerful day by day , we'll be complacent and lazy. Increased dependency on modern tools like calculators has reduced on our creativity. Students can’t solve a very simple mathematical equation without using a calculator. This affects the way these students uses their brains and reduces on the level of creativity.Just like the saying goes that every coin has two sides. However, it ‘s obvious that we make the decision to choose which side. After 911, people condemn the terrorist not airplays. Student who got low marks should rethink his carelessness and laziness but not pass the buck to the calculator.Any way, There is no dangerous science, but dangerous and irresponsible people. We are working very hard to solve such problems that come along with advances in science and technology, but the efforts are not sufficient and not very successful. Actually, the key lies in the user. Moralities such as responsibility, diligence and goodness should never be lost in our heart. Otherwise , the world would be full of danger even we turn back to the stone age.科技英语范文：The impact of technology on personal communicationNowadays, with the rapid development of science and technology, people’s life takes on a brand new look, especially the communication.No one can deny that we enjoy the convenience of hi-techproducts such as mobile phones and computers. They have enormously changed the ways of communication in shortening the distance between people as well as making instant contact possible. The speeding-up mobile technology has efficiently promoted the dream of “global village”.However, each coin has two sides. Since mobile technology has progressed rapidly, there occurs some lamentable phenomenon. The high technology make our communicationmoreconvenient, but it doesn’t mean科技英语范文：高科技The development of science and technology makes our life more comfortable and convenient. However, scientists have created many problems, which are not easy to be resolved, such as air pollution, the deterioration of environment and the scarcity of natural resources, to which we must some solutions.Modern science and technology render people many advantages. Modern telecommunication shortens the distance between people and makes communication much easier. Internet is widely used now not only for collection of abundant information but also for correspondence. Email, the most effective communication device now, is becoming very popular. Besides, telephone and mobile phone make contact more convenient than before.Modern transportation, such as airplanes and high-speed trains make our journey smooth and fast. With the help of modern transportation, people can go everywhere they prefer to. The journey to outer space and other planets is not a dream any more. Rockets and space shuttles can help us realize the dream of space travel.Modern medicine prolongs peoples life and relieves patientsof sufferings from many diseases. Cancer and AIDS are fatal to peoples health. Thanks to the endeavors scientists have made, these diseases become treatable.However, the process of scientific development also arouses many sever problems to our human beings. Internet, though widely used in modern communication, is easy to be destroyed by computer virus. Outer space exploration has produced much waste in the space. A tiny metal, a screw, for example can destroy a flying man-made satellite. Industrialization is making natural resources become scarce.Confronted with these problems, scientists are seeking prompt and feasible solutions. The development of science and technology bring about both positive and negative effects to us. We must eliminate the positive effects to the least extent.。
科技英语作文
Modern technology has had a great influence on people’s entertainment choices, making them less creative. Co you agree or disagree with this opinion?Modern technology has had a great influence on people’s entertainment choices, making them less creative. Do you agree or disagree with this opinion?Bearing in mind the likely effects of the modern technology on entertainments on today’s users are important, because it is an issue that is discussed daily nowadays by people in both the private and public sectors. However, does the modern technology benefits all aspects of human society? Some people may answer to the contrary. As far as I can see, current technology is undermining modern people’s creative ability by providing individuals sorted ways of re laxation.The likely effects of modern technology on entertainment for people today are important, because it is an issue that is discussed daily in both the private and public sectors. However, does modern technology benefit all aspects of human society? Some people may answer in the negative. As far as I can see, modern technology undermines people’s creative ability by providing individuals pre-digested forms of relaxation.To begin with , it has been known from the latest resources that modern people prefer to enjoy high-tech ways of recreation. More and more people from all works feel so pressuarable that they turn to modern technology which is supposed to be there providing convenient, time-saving and fresh entertainment while fewer and fewer individuals choose to play jigsaws or make some exquisite handicrafts which is the very things expand their imaginary world and make them more creative in their spare time.To begin with , it has been known from recent sources that modern people enjoy high-tech ways of recreation. More and more people from all walks of life feel so pressured that they turn to modern technology to provide convenient, time-saving and fresh entertainment; while fewer and fewer individuals choose to play jigsaws or make some exquisite handicrafts, the kinds of things that expand their imaginations and make them more creative in their spare time.Furthermore, modern people are more likely to count on current technology whether in physiological or psychological. What is meant by this is that plenty of people fully enjoy the entertaining products such as, TV, MP3 or internet games high-tech brings to them that they spend lots of time on them without doing anything else. Couch-potato syndrome is one such example. The more people rely on those modern entertaining items, the more possible that people form a negative habitual opinion that these high-tech can do everything for them, and the less likely people will be initiative and creative in their life.Furthermore, modern people are more likely to rely on modern technology whether for physiological or psychological reasons. What is meant by this is that many people fully enjoy the entertainment devices, such as TV, MP3 or internet games, that high technology brings to them, so that they spend lots of time on them to the detriment of everything else. The couch-potato syndrome is a result. The more that people rely on those modern entertainment devices, the morethey form a negative habits, relying on all that these high-tech devices can do thing for them, and the less likely like they are to show initiative and be creative in their lives.It goes without saying that modern technology do bring us low-cost, efficient entertaining products, and these may initiate some individuals’inspiration occasionally. But that’s very limited compared to the side effects they give rise to.It goes without saying that modern technology does indeed bring us low-cost, efficient entertainment, and this may on occasion initiate some person's inspiration. But that is very limited compared to the side effects they give rise to.In conclusion, it is very important to know that it’s the creative ability that make our human society prosperous and flourish. Modern technology is just a powerful tool in the charge of human to benefit our conduction.In conclusion, it is very important to know that it is our creative ability that makes our human society prosperous and flourishing. Modern technology is just a powerful tool at the disposal of human beings to benefit the conduct of our lives.The conflict between technological development and tranditional culturesNowadays, conflicts between technological developments and tranditional cultures accelerate in a fierce way. More and more cries for saving the traditional cultures can be heard, while others urge a more rapid technological revolution in the new millenium. So, are technology and tradition so incompatible, or is there a balance point`in where we could reserve our ancestors’ legacy as well as keep on the hi-tech development?First, we must admit that conflict between technology and tradition do exist. Urbanization and modernization sweep across the world, changing our way of cultivating corns and wheat, denouning the old way of thinking, leaving those old-day arts and handicrafts only to be seen in museums. Despite the obvious benefits of a modern life, a considerable number people call for a rescue of traditonal culture both mathrially and spiritually.But, looking deeper into the matter, we will see that this conflict is inevitable, but not fatal to either technology or traditon. In one sense, the innovation of technology is actually part of the culture we had and have. Without the four great inventions of china, it is impossible for chinese to own such a splendid and colorful tradtional culture. Also it is the advanced technology that allows us to keep those ancient art crafts and masterpieces in such a good condition. Tradition is not somethingalready dead and weak. It is facing a big challenge, and it will gain energy and renew itself through struggle. Good things in it shall survive and grow with the new power supplied by new technology. (整理收集:英语作文网)Peole should not be so pessimistic about the future of our traditional culture. Mourning too much for things that failed to survive in this challenging world will only hinder our pace to a more refined and developed life.With the science and technology highly developing , many aspects ,especially in the way of communication, have changed beyond our imagination., we people nowadays prefer to choose more convenient and popular way to contact with others. some changes can be obviously seen around us that people use mobile phone instead of writing letters and public telephone, besides, computers, as we all know, play an important role ,without which we may still impatiently wait the letters coming to us. When searching for something, we would like to use computer owing to it’s entirety and speediness. what’s more,3G mobile phone known to us has came into our daily life with it’s various and popular functions, making it possible that people can enjoy movie, sending and receiving email as well as reading and listening in the mobile phone. Those all allow us to enjoy more entertainment and save much time .Furthermore , if we each spare on effort to learn more knowledge and improve our practical skills, our society would be in a higher level. However, high tech as it is , some problems also appear in succession other than it’s advantages., people may depend too much on computer and other new technology ,which creates a common phenomemon that people spent less time talking with their friends face to face, this in the long run is bad for their friendship, worse still, it can result in obesity as people mostly sit on a chair or lie in bed. Meanwhile, the high tech such as mobile phone can bring much radiation that is also bad for our health. Due to above condition, we should make full use of the tech ,but remember you health!数：不少于120字。
科技英语作业4
翻译练习V11．The rudder serves the purpose of yawing the airplane to the right or left．方向舵的用途是偏航飞机向左或向右12．Each of these compounds boils at a different temperature．这些化合物都归结在不同温度。
13．After more experiments，Galileo succeeded in making a much better telescope．经过实验，伽利略成功地使一个更好的望远镜。
14．During the two and half hour talk，the two sides exchanged views on the choice of terms of payment，but they made no mention of the mode of transportation．在两个半小时的会谈，双方交换了意见，支付方式的选择，但他们没有提到运输方式。
15．The application of electronic computers makes for a tremendous rise in labor productivity．应用电子计算机可以大大提高劳动生产率。
16.The maiden voyage of the newly-built steamship was a success．那艘新建轮船的处女航是成功的17．About 20 kilometers thick，this giant umbrella is made up of a layer of ozone gas．大约20公里厚的巨伞，这是由一层臭氧。
18．We have made a careful study of the properties of these chemical elements．我们仔细研究了这些化学元素的性质。
科技英语作业
Unit 1 General Introduction to Professional Paper Writing III. F ind a major journal in your field and analyze the requirements and specifications laid down by the Editorial Board of the journal of periodical for submission.J ournal: 《Chinese journal of Mechanical Engineering (English Edition)》1. About CJME-ENChinese Journal of Mechanical Engineering is an academic journal supervised by China Association for Science and Technology and sponsored by Chinese Mechanical Engineering Society. As an authoritative academic journal in the technical field of Chinese mechanical engineering, Chinese Journal of Mechanical Engineering closely embraces developmental orientation of mechanical engineering subject at all times, and centers on covering comprehensive, fundamental, developmental, marginal scientific achievements & advanced experience as well as publishing internationally leading academic writings. Major publications involve frontier review research, high-level basic theoretical research, research on engineering technology application of high application value in field of mechanical engineering and related disciplines. Most writings derive from projects funded by national, provincial and ministerial research funds. Presently, Chinese Journal of Mechanical Engineering is mainly published in Chinese (monthly) and English (bimonthly) with contents different from each other.2. Requirements and PrecautionsContributions should meet requirements said below:1) Subject matter of contribution accords with the national principle, policy and route of China, showcases the strategy of vitalizing China and world through science and technology, promotes science and education, closely integrates with economy, serves for revitalization of machine industry, reaches internationally leading level; at the same time, it should be scientific & innovative, wherein some personal opinion that is forward-looking to a certain degree is provided; timeliness is needed for reviewing contribution.2) Writing accords with relevant national standard and professional technical manual of China. Major national standards consulted by our journal at the present time include:①GB 3100～3102－1993 Quantities and units②GB/T 7714－2005 Rules for content, form and structure of bibliographic references③GB/T 3179－1992 Presentation of scientific and technical periodicals④GB/T 14706－1993 Proofreader's marks and their application⑤GB/T 15834－1995 Use of punctuation marks⑥GB/T 15835－1995 General rules for writing numerals in publicationsRelevant professional technical manuals include: Mechanical Engineering Handbook (the 2nd Edition), Electrical Engineering Handbook (the 2nd Edition) etc.3)Contributions have to be provided with 2 computer-typed laser printing copies and anelectronic one (that can be submitted online directly, mailed with CD-ROM, or sent by E-mail etc.). Please do not submit to multiple publishers.4) Contributors should supply full mailing address and contact information (telephone, E-mail etc.), fully cooperate with editorial office, actively work with editors in revising the article, and offer all kinds of materials with respect to its publishing.5) In case the article derives from funded project, it should be clearly footnoted on the first page. Copies of credentials for contributors who are funded or awarded by provincial, ministerial (departmental) plus fund (e.g., National Natural Science Foundation of China, etc.) must be provided.3. FormatElements of contributions in Chinese according to the structural order are: article title, author name, affiliation, abstract, key words, CLC number, introduction, main text, conclusion, references, title in English, author name in English, affiliation in English, abstract in English, key words in English and biographical notes.Elements of contributions in English according to the structural order are: article title, author name, affiliation, abstract, key words, introduction, main text, conclusion, references and biographical notes.Main text, Chinese or English, should be typed with double spacing between all lines (Chinese Paper Template and English Paper Template can be downloaded on the website of Chinese Journal of Mechanical Engineering).1)Contribution titleContribution title should sum up subject matter, and be concise and clear. Subtitle can be added when necessary.Contribution title in English should accord with English way of saying. Do not use abbreviations and acronyms having been recognized by public freely, and upper case should be used for all letters.2) Author name and affiliationAuthor name of article in Chinese should be listed below the title from left to right in order. Author affiliation will be listed beneath their names in the same order with brackets, each piece of affiliation information should include number (when there are more than one piece), full name of affiliation (write until secondary affiliation, e.g., college, institute or department), city, postal code. Country should be also indicated when the affiliation is at abroad. Corresponding affiliation number should be superscripted after each contributor name, wherein the numbers should be separated by commas when there are more than one affiliation.3) AbstractWhen writing an abstract, contributors should pay attention to following questions:①Abstract should be independent and self-evident.②Following elements should be explored in an abstract: research purpose; approaches; experiment results; conclusion.③Abstract length: better within 300~500Chinese character.4) Key wordsKey words are standardized words or phrases, which normally are no more than 3~7. Key words in Chinese and English of the same article should share common content and order.5) CLC numberCLC number is necessary only for Chinese Article. See Chinese Book and Material Classification (the fourth edition).6) IntroductionIntroduction should be concise and comprehensive. Basic theories, experimental methods and deduction of fundamental equations in general textbooks should be mentioned no more in introduction. Describe faithfully, prevent boasting of oneself while depreciating others and avoid promotional language. Define and explain professional glossary or abbreviated expression, nomore explanation when they appear in following text, and try to avoid figures and tables in introduction.7) Main textEach title in the main text should be numbered consecutively and uniformly with Arabic numerals, and written flush. Space of two English characters should be left between the number and the title.8) ConclusionConclusion is the final, general sum-up of the whole article. The language should be accurate, complete, clear and polished to avoid ambiguity and vagueness .Normally it should be listed in order in the form of (1), (2), (3) with different paragraph, or written only in one paragraph.Conclusion has following functions: sum up approaches adopted and research results; bring forward new findings and research results; put forward suggestions, research plan or problems to be solved; give prominence to research uniqueness etc.9) ReferencesSee GB/T 7714-2005 Rules for content, form and structure of bibliographic references to get relevant reference details (reference method, bibliography format etc.).10) Biographical notesMake a brief introduction to the major or all authors at the end of article, including author name(s), gender, date of birth, title/position, research direction, research findings and telephone, E-mail etc.4. Standard usages1) TermsTerms approved by China National Committee for Terms in Sciences and Technologies (CNCTST) should be used; technical terms should be used in accordance with relevant standard or regulations; terms known and recognized by public though no standard or regulation for them should be used. Terms coined by the contributor should be explained with notes when they appear for the first time in the article. Terms referring to the same concept or combination of concepts should be consistent in the article. Foreign names can be cited in the original language, no need for translation. Names for general government department, group, school, research institution,enterprise etc. must be cited in full when they appear for the first time in the article.2) NumbersUsage of numerals should accord with national standard GB/T 15835－1995 General rulesfor writing numerals in publications.3) Foreign lettersEasily confused letters, symbols and sub- and super-scripts etc. must be typed clearly or written fairly. Times New Roman font should be used for all non-Chinese characters in the printing copy. Strictly distinguish foreign letters language classification, upper & lower case, block & italic, bold & non-bold (e.g. symbols for vector, tensor and matrix are bold and italicized) etc., and mark clearly with pencil when necessary.4) Quantities, symbols and unitsQuantities, symbols and units involved in the article should accord with relevant regulations in national standards as GB 3100－1993 SI units and recommendations for the use of their multiples and of certain other units, GB 3101－1993 Quantities and units－General principles, and GB 3102.1～13-1993 Quantities and units.5) PunctuationsPunctuation usage should accord with relevant requirements said in national standard GB/T 15834-1995 Use of punctuation marks.5. Mathematical formulaeImportant mathematical formulae should be typed in the middle of a new line, and numbered orderly. Not necessarily number those that the article does not mention again. Numbering should be carried out in the whole article uniformly, not in different parts respectively. Formulae numbers should be written flush at the right end with parenthesized Arabic numerals.Quantity symbols should be explained one by one with accurate and concise language in the order that they appear, when they appear for the first time in formulae. When necessary, quantity units can be noted in formulae.Sub- and super-scripts together in one symbol should be avoided in formulae; three sub-or super-scripts in one symbol should be avoided, as well as unnecessary formula deductions.6. FiguresFigure contents should be closely related to the main text, and dispensable onesshould be avoided. There should be corresponding introductions or captions for each figure Lines of figures should be clear, and their sizes should fit journal space with proper layout. In case there are any notes or captions within the figure, they should be highly tangible. Chinese Journal of Mechanical Engineering is not printed in color, wherefore lines in different colors should not be used to denote different meanings, but different line types, e.g. broken line, real line etc.In case there are more than 2 figures in an article, they should be consecutively numbered with Arabic numerals, e.g. Fig. 1, Fig. 2; if there are multiple sub-figures for a figure, they are numbered with letters as (a), (b) etc., and should have corresponding sub-figure title.7. Tables…Three-line tables‟ are recommended to use, wherein auxiliary lines can be added to explain easily confused contents. Quantity explanation at table head should include physical quantity name, symbol and unit, for example: Rated current I/A; if it is dimension one quantity (i.e. dimensionless quantity in the past), just physical quantity name and unit are enough. In case all data in a table share the same unit, the unit can be indicated at right upper corner of the table, and written flush.Tables should be numbered with Arabic numerals in the sequence that they appear, e.g. …Table1‟, …Table2‟, and should have corresponding table title. There should be corresponding introductions or captions for each table.Unit 2 Title, Author/Affiliation and KeywordsII. G ive your comments on the following titles and keywords or revise them in necessary.1. Title1) On Learning Foreign Languages and Cultural Background TeachingR evise:Foreign Language Learning and Cultural Background Teaching2) A Research on the Artificial Neural Network (ANN) Applied in the Analysis of Structural MechanicsAn Application of the Artificial Neural Network in the Analysis of Structural Mechanics3) Developing Computer Internet and the Spread of Culture and InformationR evise:Developing Computer Internet and Spreading Culture and Information4) Inputting Cross-cultural Information for More Effective English Teaching by Means of Inputting Cross-cultural Communication in GeneralR evise:Inputting Cross-cultural Information for More Effective English Teaching – A Means in General College English Teaching5) Is Literature Useless in TOEFL?R evise:How to Use Literature in Teaching English as a Foreign Language6) Innovation and the Materials RevolutionT he topic range is too big.7) Phase Equilibrium between Fluorothene and Organic SolventsA perfect title.8) Can the Rate of Wash Load Be Predicted from the Bed Load Function?R evise:The Prediction of Wash Load Rate by Bed Load Function9) Focusing on the Communicative Skills –Advanced English Communication Course for Non-English Major Postgraduates in Tsinghua UniversityA perfect title.10) A Bridge between Two WorldsR evise:A Bridge between the Worlds of X and Y2. Keywords1) Keywords: English, vocabulary, tendency.W ithout a period (full stop) at the end of the keywords: English, vocabulary,2) Keywords: Collocation Context Connotation;Using larger space between wordsCollocation Context Connotation3) Keywords: Five-year plans; economic conditions; industry statistical data; foreign investment; chemical industryE xcellent4) Keywords: water transfer, system analysis, DSSKeywords: Water transfer, system analysis5) Keywords: mass mediaT oo general6) Keywords: nuclear waste, nuclear fuel cycle, remediation, bioremediation, citrobacter, heavy metal accumulation, uranium transuranic elements, technetium, tributylphosphate, ethylene diamine tetraacetic acid (EDTA)T oo many words and too specificUnit 3 and 4 AbstractW rite an Abstract of your paper with the skills learned in this unit.Abstract: This paper first introduced the motor of the electric vehicle …s ba sic properties, and established the mathematical model of pure electric vehicle‟s motor performance parameters from the vehicle driving dynamics, the mathematics model of the performance parameters, then discussed the basic characteristics of motor and summarized the initial parameters determination principle. In the end, made an example for a developing pure electric car's basic parameters and performance requirements, according to the above principles, determined the motor parameters and draw the motor performance curves, and provided the basis in order to choose appropriate power transmission system.Unit 5 IntroductionIII. R evise an introduction written prior to this unit by using the skills learned so far, and then give your comparison.As we know, every professional paper should have at least one or two introductory paragraphs with or without a particular subtitle. And as a successful introduction, it should have four general functions: introducing the subject, limiting the research scope, stating the general purpose, showing the writing arrangement.In the introduction, the authors introduce the subject they will discuss. So we can get a preliminary but overall impression before going on with the full text of the paper. They also supply sufficient background information to relieve the readers who are not well-informed in this field of troubles in understanding and evaluating the results of the given study without referring to previous publications on this topic. The authors guide the reader to avoid any misunderstanding of his inclination and make clear what the reader himself can expect to gain from the abstract drafter.Then, let us analyze the structural features of this introduction. First, the authors introduce the subject they will discuss, give the research background of this topic and transit to the main problems to be discussed in the previous work to be further studied. At last, the authors turn thereader‟s attention to the research that they will discuss.So, this introduction is very good, and we could learn something from it.Unit 6 Textual Development (1)III. F ind an original theoretical paper form a major journal in your field and study its development of the body.T here is a paper entitled The Finite Element Analysis of Connecting Rod of Rod of Diesel EngineAbstract: Connecting rod mechanism is an important con-sideration in the design of Diesel Engine. But it is difficult to describe the dynamic changes of boundary conditions of the running engine by the traditional method of simply finite element analysis. In order to obtain the vibration characteristics and vibration frequency distributions, structural characteristics of the connecting rod mechanism using modal analysis is investigated. Firstly, a physical model of connecting rod mechanism is built using CAD software. Secondly finite element analysis and simulation of the model is taken by Hyperworks and MSC.Nastran softwares. Then its flexible multi-body dynamic model is established by ADAMS/View. And the fatigue stress of connecting rod under the max combustion pressure and Inertia force condition is calculated using the durability Module. The result indicates the stress distribution and deformation instance. The stress is mainly produced on the joint of connecting rod shell and the bottom end or the top end. And the biggest stress acting on the connecting rod is just 34.0613MPa, early smaller than its limited stress 355MPa. The method provides the theoretical evidence for connecting rod structure improvement and optimum design.Keywords: connecting rod; finite element analysis; ADAMS;I. INTRODUCTIONWith the continuously strengthening of the engine, the working conditions of the connecting rod mechanism became more complex. In operation, the connecting rod is subjected to both gas pressure and inertia loads, and therefore, it must be adequately strong and rigid and light in weight as well. In order to improve the sufficient fatigue strength, stiffness, well static and dynamic mechanical properties under a variety of alternating load condition, it became a key question that how to even more base design decisions on virtual prototypes and to optimize the whole mechanism development process in recent years[1]~[3]. But it is difficult to describe the dynamicchanges of boundary conditions of the running engine by the traditional method of simply finite element analysis. In order to study the mechanical properties of the connecting rod in the actual working conditions, the geometrical models of all the components of the connecting rod mechanism were founded with the CAD, the mass parameters were figured out. With using the software such as Hyperworks and MSC.Nastran, the crankshaft and the connecting rod were analyzed, and the model documents were created and transmitted into the ADAMS/View, and the fatigue stress brought by the eruptible power and the inertia force was analyzed with the durability model of the ADAMS/View software. From this we can clearly understand the stress-strain acting on each parts of the crankshaft and the connecting rod, quickly find dangerous position, and laid the foundation for the optimal design of the mechanism.II. FINITE ELEMENT MODEL ING OF CONNECTING RODA. FEM equation of model analysisThe goal of modal analysis in structural mechanics is to determine the natural mode shapes and frequencies of an object or structure during free vibration. It is common to use the finite element method (FEM) to perform this analysis because, like other calculations using the FEM, the object being analyzed can have arbitrary shape and the results of the calculations are acceptable. The types of equations which arise from modal analysis are those seen in Eigen systems. The physical interpretation of the Eigen values and eigenvectors which come from solving the system are that they represent the frequencies and corresponding mode shapes. Sometimes, the only desired modes are the lowest frequencies because they can be the most prominent modes at which the object will vibrate, dominating all the higher frequency modes.V. CONCLUSIONSThe connecting rod of the S195 diesel engine was analyzed with the Hyperworks and MSC.Nastran, and the result was very reasonable. So it is important for improvement of the design for engine connecting rod. The simulation analysis was really an economical and efficient method to study.ACKNOWLEDGMENTIt is a project supported by Beijing Training Program Foundation for the Talents REFERENCES[1] Shi Jiankui “Finite Element Modal Analysis of Vehicle Engine Connecting Rod,” in Equipment ManufactringTechnology , pp.22-24, June 2009[2] WANG Wenzhu, CHENG Mianhong，Liu Gang，etc, “Finite element method coupling analysis for a enginepiston assembly” in Machinery Design & Manufacture, pp 186-188 , April 2009[3] HU Dongqing, “Three Dimensional Finite Element Analysis of Engine Connecting Rod”in Journal of AnhuiAgricultural Science , vol.37, pp.:6458-6460, July 2009T extual development includes description, logical development and reasoning.1. DescriptionThere are two basic approaches to description: objective and subjective.1) Objective DescriptionFrom the second part of this paper, it can be seen that the authors describe the goal of modal analysis in structural mechanics is to determine the natural mode shapes and frequencies of an Object or structure during free vibration. It is common to use the finite element method (FEM) to perform this analysis .The types of equations which arise from modal analysis are those seen in Eigen systems.2) Subjective DescriptionThe subjective description is the author‟s opinion .As the structure of the connecting rod is very complex, generally it was separately made. Because of the separate of the connecting rod shaft and the connecting rod cap, many components such as connecting rod buses, connecting rod bearing shells, and connecting rod bolts. In order to conveniently analyze the connecting rod, without affecting the calculate accuracy, some parts of the connecting rod and the connecting rod shaft were integrated to simplify the link mechanism. Make the simplified connecting rod 3Dmodel scatterwith the Hyperworks software, and divided it into 7636nodes, 28866 units.Neither of the two approaches to description exists independently. Objective description is always the product of a subjective selection of details, while subjective description captures reaction to an objective reality.3) General Requirements for Research DescriptionThis passage uses many pictures and tables for presenting the object. And the following are some words for illustration and analogy: for example, comparable, in the same way etc. Form the part 3; we can see the necessary comparison. Each figure stands for an oscillating shape and makea compaction between the oscillating shapes2. Logical DevelopmentThis paper logically developed by:(1) FEM equation of model analysis;(2) The analysis result of the model analyze of the connecting rod;(3) The multi-flexible-body dynamics model and simulation analysis result.3. ReasoningA brief introduction is usually sufficient to cover, so far as circumstances demand, such points as the purpose for which his research has been made. And individual facts of special importance and general conclusions that may have special significance can be added to this analysis.Unit 7 Textual Development (2)III. F ind an original experimental paper from a major journal in your field, and study how the development of its body is done.Let me take The Finite Element Analysis of Connecting Rod of Rod of Diesel Engine for an exampleIn this paper, in order to study the mechanical properties of the connecting rod in the actual working conditions, the geometrical models of all the components of the connecting rod mechanism were founded with the CAD, the mass parameters were figured out. With using the software such as Hyperworks and MSC.Nastran, the crankshaft and the connecting rod were analyzed, and the model documents were created and transmitted into the ADAMS/View, and thefatigue stress brought by the eruptible power and the inertia force was analyzed with the durability model of the ADAMS/View software. From this we can clearly understand the stress-strain acting on each parts of the crankshaft and the connecting rod, quickly find dangerous position, and laid the foundation for the optimal design of the mechanism.The paper first establish a FEM equation of model analysis, The goal of modal analysis in structural mechanics is to determine the natural mode shapes and frequencies of an object or structure during free vibration. It is common to use the finite element method (FEM) to perform this analysis. Secondly, as the structure of the connecting rod is very complex, generally it was separately made. Because of the separate of the connecting rod shaft and the connecting rod cap, many components such as connecting rod buses, connecting rod bearing shells, and connecting rod bolts. In order to conveniently analyze the connecting rod, without affecting the calculate accuracy, some parts of the connecting rod and the connecting rod shaft were integrated to simplify the link mechanism. Then, According to the actual situation, all the points of the inner eye were coupled to a point which was created in the center of the inner connecting rod top end eye with the HyperWorks. And all the points of the inner connecting rod button end eye were coupled to the points created in the center of the inner connecting rod button end eye. Lastly, we can come to a conclusion by comparing each oscillating shapes.Unit 8 Result, Discussion and ConclusionIII. F ind an original paper from a major journal in your field, and study the results or discussion or conclusion.Let‟s make this paper for an example,at here just give the paper‟s title and conclusion.Conclusion is the final viewpoint of the whole paper. In this section the writers make a summing-up about the specific chassis tuning requirements for the Indian market which are fundamental in order to adapt the vehicle performance to the Indian road‟s characteristics. The first step of the tuning process was to increase the ride height in20mm. The second steps of some countermeasures were applied in order to improve the vehicle handling performance, ride comfort and st,the analysis of the production assembly process and wheel alignment was also crucial to solve any undesirable vehicle behavior as for example the side pulls behavior.Unit 9 Acknowledgments, References, Footnotes and Appendixes IV. F ind an original paper from a major journal in your field, and study the acknowledgment, references, footnotes and appendixes.AcknowledgmentT he above passage is a section of acknowledgments from a paper named The Finite Element Analysis of Connecting Rod of Diesel EngineIn most cases, the section of acknowledgments is the last section of the body of a paper. Acknowledgment is mainly used to extend the author(s)‟s indebtedness to the help ful support or concern from his (their) colleagues (or institutions) in offering any useful material, specimen, technical know-how, suggestions, or any other kind of enlightenment, etc. to the author. this acknowledgment tell us the project‟s supporter .ReferencesT he above passage is a section of references from the paper of the Development Trend of Advanced Steering System.References are often the case that in research paper writing, the content of the references are exact, complete and standard. And the style of references is unified. And these references or bibliography are arranged according to the order of appearance of the cited works, that is to say citation order system. The evidence that they have consulted good authorities helps to make the statements more convincing, and the use of this system does not prevent the author。
科技英语作业2
Ex. 8 Directions: Translate the following sentences into Chinese. 1. Your choices are usually limited: find a good job in the small business world, stand in line at unemployment, or accept a cut in pay and benefits. (Para.2) 你的选择总是很有限的：在狭小的职场里找到好工作，滞留在失业大军里，抑或是接受薪水与 福利的削减。 2. One of the faults committed by home-based business owners otherwise known as a small office home office is that they fail to consider the possibilities of expansion. (Para.3) 然而通过创办小型企业或家居企业实现自主就业也叫做小型家居办公室的主人的过错之一是他 们在考虑扩张方面是不成功的。 3. Of course this could be due, in part, to the fact that more experienced and aggressive workers tend to start their own businesses. (Para.7) 当然这部分原因是更有经验和侵略性的员工倾向于开展自己的业务。 4. If you are successful, you won’t have to go ask for a raise or accept what you’re given or worry about being turned out when a younger version of yourself comes along. (Para.8) 如果您是成功的，你不会去要求提高或接受您要考虑或担心正在变成了牧场时，年轻版的自己 来的。 5. You will have the freedom to enjoy the profits of your own work, and the continuing growth and profit which comes from owning your own business. (Para.8) 您将可以自由地享受自己的利润的工作，并持续增长和利润来自拥有自己的企业。 Ex. 9 Directions: Translate the following sentences into English with the words or phrases given in the brackets. 1. 请允许我向你的成功表示祝贺。(congratulate on) Please allow me to congratulate on your success. 2. 任何人也不能把台湾从中国分离出去。(separate... from ) Nobody can separate Taiwan from China. 3. 那家公司为员工各种福利。(supply…with) The company supplies its employees with all kinds welfare 4. 现在石油化工产品占所有化学制品的四分之一。(account for) Petrochemicals today account for one fourth of all the chemicals made, 5. 从长远来看，信息产业能够赚取更多的利润。(in the long run)
科技上瘾的英语作业
科技上瘾的英语作业Sure, here is an English assignment focused on the topic of "Technology Addiction":Objective: To explore the concept of technology addiction and its impact on individuals and society.Instructions:1. Definition of Technology Addiction:- Write a short paragraph defining what technology addiction is. Include the psychological and behavioral aspects.2. Causes of Technology Addiction:- List and explain at least three factors that contribute to the development of technology addiction.3. Symptoms of Technology Addiction:- Describe the common signs and symptoms that may indicate an individual is addicted to technology.4. Effects on Mental Health:- Discuss how technology addiction can affect anindividual's mental health, including issues like anxiety,depression, and sleep disorders.5. Effects on Physical Health:- Explain the physical health consequences of excessive technology use, such as sedentary lifestyle, eye strain, and musculoskeletal problems.6. Impact on Social Skills and Relationships:- Analyze how technology addiction can hinder the development of social skills and affect personal relationships.7. Prevention and Treatment Strategies:- Suggest ways to prevent technology addiction and propose strategies for those who are already addicted.8. Personal Reflection:- Reflect on your own use of technology. Are there signs of addiction in your behavior? What steps can you take to manage your technology use?9. Conclusion:- Summarize the key points discussed in the assignment and emphasize the importance of a balanced approach to technology use.10. References:- List any sources you have used for your research.Word Count: 1000-1500 wordsDue Date: [Insert Due Date]Note: This assignment aims to raise awareness about the potential dangers of technology addiction and encourages critical thinking about healthy technology use. Remember to use proper citation for any information you reference from external sources.。
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Effects of doping of metal cations on morphology, activity, and visible light response of photocatalysts 参杂金属阳离子对光催化剂的形态，活性，对光的回应的影响 Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan b Core Research Evolutional Science and Technology, Japan Science and Technology Agency (CREST/JST), Japan 应用化学系，理学院，东京大学的科学，1-3神乐坂，新宿区，东京162-8601，日本 B核心科学与技术演进的研究，日本科学技术振兴机构（顶/日本时间），日本 Received 23 March 2007; accepted 23 July 2007 Available online 28 July 2007 2007年3月23日收到，2007年7月23日接受，2007年7月28日在网上提供 摘要 Effects of doping of metal cations into wide band gap semiconductor photocatalysts on morphology, visible light response, and photocatalytic performance were studied. 金属离子对宽带隙半导体光催化剂的形态，可见光感特性和光催化性能的影响的研究 Doping of lanthanide and alkaline earth ions improved activity of a NaTaO3 photocatalyst for water splitting. 镧系元素和碱土金属离子掺杂提高了NaTaO3光催化剂对水的分解的活性 Lanthanum was the most effective dopant. The NaTaO3:La with a NiO cocatalyst gave 56% of a quantum yield at 270 nm. 镧掺杂剂是最有效的。NaTaO3与一氧化镍助催化剂在270纳米提高了56％的量子产率 This remarkable photocatalytic activity was brought by formations of nano-crystalline particle and surface nano-step structure by the doping 这显著的光催化活性是由纳米晶体颗粒表面纳米结构的一步编队所带来的 On the other hand, metal cation doping into ZnS, TiO2, and SrTiO3 gave visible light responses for H2 or O2 evolution from aqueous solutions containing of sacrificial reagents. 另一方面，硫化锌，二氧化钛和钛酸锶的金属阳离子的参杂对包含献祭试剂的水溶液分解成氢气和氧气的响应 The visible light responses were due to the electronic transition from donor levels formed with dopants to conduction bands of the host photocatalysts 可见光响应的原因是电子跃迁从参杂过的施主能级到光催化剂传导带 Codoping was effective to compensate charge unbalance brought by doping of transition metal cations, resulting in the improvement of visible light response for photocatalytic reactions. 共掺杂对补偿不平衡的过渡金属离子，掺杂是有效的，引起光催化反应的可见光响应改善 Among the transition metal-doped photocatalysts, SrTiO3 doped with Rh (SrTiO3:Rh) was the novel metal oxide photocatalyst that produced H2 under visible light irradiation. 在过渡金属掺杂的光催化剂，参杂了铑（钛酸锶：铑）的钛酸锶是一种新型金属氧化物型的光催化剂，可以在可见光照射的情况下产生氢气 The SrTiO3:Rh photocatalyst was employed with O2 evolution photocatalysts such as BiVO4 and WO3 for construction of Z-scheme systems that were active for water splitting into H2 and O2 under visible light irradiation. 钛酸锶：铑光催化剂发展为用于氧气的制备，例如BiVO4和WO3用于Z型计划体制建设，水在可见光照射下分解成氢气和氧气的催化剂 2007 Elsevier B.V. All rights reserved. 2007年爱思唯尔B.诉保留所有权利 1. Introduction Photon energy conversion reactions using semiconductor electrodes [1–7] and powdered photocatalysts [8–25] have been extensively studied since the Honda–Fujishima effect [26] was reported. Efficient water splitting into H2 and O2 using a powdered photocatalyst is attractive because it can be a clean and simple process for H2 production using a natural energy. Water splitting utilizing solar light, that is called ‘‘solar hydrogen production’’, is the final target in the present research field. 1． 简介 光子能量转换用半导体反应 电极[1-7]和粉状催化剂[8-25] 已被广泛研究，因为本田藤岛 效应[26]的报道。水使用粉末光催化剂高效分解成氢气和O2是有吸引力的 因为它可以是一个H2的清洁生产，工艺简单,使用自然能源。利用太阳能分解水光，这被称为'' ''太阳能产氢，是在目前的研究领域最终的目标。 * Corresponding author. Address: Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan. Tel.: +81 35228 8267; fax: +81 35261 4631. E-mail address: a-kudo@rs.kagu.tus.ac.jp (A. Kudo). *通讯作者。地址：应用化学系， 理学院，东京理科1-3神乐坂大学 新宿区，东京162-8601，日本。电话：。+81 35228 8267传真：+81 35261 4631。 E - mail地址：a-kudo@rs.kagu.tus.ac.jp（答：工藤）。 Many metal oxide photocatalysts have been reported for water splitting so far. The present authors have found many niobate and tantalate photocatalysts [19,20,25].Some metal oxide photocatalysts such as NaTaO3 show high activities for water splitting although they work only under UV irradiation because of their wide band gaps. Domen and coworkers have reported water splitting using metal (oxy)nitride photocatalysts that are nonoxide materials [21,23,24]. Water splitting under visible light irradiation has been achieved by some photocatalyst systems [16,18,21,24]. However, the efficiencies are not satisfying. Development of new photocatalyst materials is still an