1、Lesson2 “Abstract”,I. Importance of “abstract” II. Writing about “abstract” III. Reading about “abstract”,II. Writing about “abstract”,If there are requests ， Writing about abstract in accordance with the relevant requirements 。 (“call for paper” or “Instruction for authors”),If there are not releva

2、nt requirements ， Writing about abstract in accordance with the general requirements 。,General requirements From form: font，location， word number（300）, structure From contents: eg: objective, methods, etc. From language： sentence，tense,Part1.Requirement,II. Writing about “abstract”,Structured abstra

3、ct （4、5、6、8 elements） Aim/objective/purpose material, subjects and methods results conclusions,Non-structured abstract 300-substantive words,Part2. Structure and content, background Aim/objective/purpose material, subjects and methods results discussions conclusions,II. Writing about “abstract”,Part

4、3. Sentence and tense,To advocate Person：third person Tense：Present/Past Voice：passive voice,Dont Contain 1.Well-known common sense 2.content in the introduction 3. Interpretation，evaluation and Self-evaluation 4. Repeat some information of title 5. paragraph 6. Create your own vocabulary and symbol

5、,II. Writing about “abstract”,Part4. Additional items,Title Author Institutions of authors and corresponding address Key words,Ten steps to writing an effective abstract,Superficial reading Intensive reading,III. Reading about “abstract”,Writing / to imitate,To obtain science and information technol

6、ogy,Specialized Vocabulary of the Professional English(BME),Large vocabulary of interdiscipline Category high-frequency words Non-high-frequency words,Exercise,Exercise1:Rewrite the following paragraph based on non- structured abstract,練習(xí)2.按照正確的格式將下面的中文摘要改寫成英文摘要,醫(yī)用半導(dǎo)體激光器驅(qū)動電源的研制 孫 延 輝1, 孟初2 遼寧大學(xué) 信息與控

7、制工程學(xué)院， 遼寧省撫順市 113001 沈 陽醫(yī)學(xué)院 生物醫(yī)學(xué)工程系， 遼寧省沈陽市 110021 摘要：半導(dǎo)體激光器在包括醫(yī)療在內(nèi)的眾多領(lǐng)域都有著廣泛的應(yīng)用，它的性能與驅(qū)動電源和工作溫度密切相關(guān)。電流的起伏會引起光功率的變化，從而影響激光器的性能。因此，為確保半導(dǎo)體激光器安全可靠地工作，研制了一種用于在醫(yī)療器械中所使用的半導(dǎo)體激光器的驅(qū)動電流源。該電流源電路與以往的電路相比，通過慢啟動電路，過流保護電路和紋波調(diào)零電路提高了半導(dǎo)體激光器抗沖擊能力和工作穩(wěn)定性。該電源采用的是由調(diào)整電路、取樣電路、基準電路和誤差放大電路等 4個模塊組成的電壓負反饋電路來實現(xiàn)的，針對醫(yī)療器械的要求為各個模塊選擇了

8、合適的器件。慢啟動電路、過流保護電路和紋波調(diào)零電路對于半導(dǎo)體激光器驅(qū)動電源的性能都有著直接的影響。實驗結(jié)果表明，該電流源輸出電流從 0-250mA連續(xù)可調(diào)，電流紋波 0.5uA，輸出電流值變化小于0.1%。設(shè)計的驅(qū)動電源較好的解決了用于醫(yī)療器械中的半導(dǎo)體激光器驅(qū)動電源的輸出不穩(wěn)定問題，在實驗室中的應(yīng)用效果良好。 關(guān)鍵詞：半導(dǎo)體激光器；驅(qū)動電源；慢啟動；保護電路,Design of The Medical Semiconductor Laser Driven Power Sun Yanhui, Meng Chu School of Information and Control Engineer

9、ing, Liaoning University, Fushun, Liaoning Province, China,113001 Department of Biomedical Engineering, Shenyang Medical College, Shenyang, Liaoning Province, China,110021,醫(yī)用半導(dǎo)體激光器驅(qū)動電源的研制 孫 延 輝1, 孟初2 遼寧大學(xué) 信息與控制工程學(xué)院， 遼寧省撫順市 113001 沈 陽醫(yī)學(xué)院 生物醫(yī)學(xué)工程系， 遼寧省沈陽市 110021,練習(xí)2.按照正確的格式將下面的中文摘要改寫成英文摘要,醫(yī)用半導(dǎo)體激光器驅(qū)動電源的

10、研制 孫 延 輝1, 孟初2 遼寧大學(xué) 信息與控制工程學(xué)院， 遼寧省撫順市 113001 沈 陽醫(yī)學(xué)院 生物醫(yī)學(xué)工程系， 遼寧省沈陽市 110021 摘要：半導(dǎo)體激光器在包括醫(yī)療在內(nèi)的眾多領(lǐng)域都有著廣泛的應(yīng)用，它的性能與驅(qū)動電源和工作溫度密切相關(guān)。電流的起伏會引起光功率的變化，從而影響激光器的性能。因此，為確保半導(dǎo)體激光器安全可靠地工作，研制了一種用于在醫(yī)療器械中所使用的半導(dǎo)體激光器的驅(qū)動電流源。該電流源電路與以往的電路相比，通過慢啟動電路，過流保護電路和紋波調(diào)零電路提高了半導(dǎo)體激光器抗沖擊能力和工作穩(wěn)定性。該電源采用的是由調(diào)整電路、取樣電路、基準電路和誤差放大電路等 4個模塊組成的電壓負反饋

11、電路來實現(xiàn)的，針對醫(yī)療器械的要求為各個模塊選擇了合適的器件。慢啟動電路、過流保護電路和紋波調(diào)零電路對于半導(dǎo)體激光器驅(qū)動電源的性能都有著直接的影響。實驗結(jié)果表明，該電流源輸出電流從 0-250mA連續(xù)可調(diào)，電流紋波 0.5uA，輸出電流值變化小于0.1%。設(shè)計的驅(qū)動電源較好的解決了用于醫(yī)療器械中的半導(dǎo)體激光器驅(qū)動電源的輸出不穩(wěn)定問題，在實驗室中的應(yīng)用效果良好。 關(guān)鍵詞：半導(dǎo)體激光器；驅(qū)動電源；慢啟動；保護電路,摘要（背景，目的） Abstract,Semiconductor laser has extensive applications in many fields including med

12、ical treatment. Its performance is closely related to drive power and work temperature. Cu r r e n t c h a n g e s m a y i n d u c e changes of light power a n d hence influence t he p e r fo r m a n c e of laser。 Therefore, a semiconductor laser driven power for medical e q ui pme n t has been desi

13、gned t o e n s u r e t he semiconductor laser wo r k credibly,半導(dǎo)體激光器在包括醫(yī)療在內(nèi)的眾多領(lǐng)域都有著廣泛的應(yīng)用，它的性能與驅(qū)動電源和工作溫度密切相關(guān)。 電流的起伏會引起光功率的變化，從而影響激光器的性能。因此，為確保半導(dǎo)體激光器安全可靠地工作，研制了一種用于在醫(yī)療器械中所使用的半導(dǎo)體激光器的驅(qū)動電流源。,extensive ikstensiv a.廣大的，廣闊的；廣泛的，大量的 drive power=driven power驅(qū)動電源 credible kredbl a.可信的，可靠的-Credibly credit kredi

14、t n.信貸；贊揚；學(xué)分；信任 vt.信任 credit sb. with sth. 把歸功于 credit card 信用卡,摘要（方法） methods,該電流源電路與以往的電路相比，通過慢啟動電路，過流保護電路和紋波調(diào)零電路提高了半導(dǎo)體激光器抗沖擊能力和工作穩(wěn)定性。 該電源采用的是由調(diào)整電路、取樣電路、基準電路和誤差放大電路等 4個模塊組成的電壓負反饋電路來實現(xiàn)的，針對醫(yī)療器械的要求為各個模塊選擇了合適的器件。,Slow turn-on, over-current protection circuit and stable waviness circuit are provided to

15、 increase operation stability and shock resistance of semiconductor laser。 This paper introduced principle voltage negative backward circuits, in which current source was composed of adjust circuit, sampling circuit, basic circuit and error enlarge circuit. Right apparatus were chosen aiming at the

16、request at the request o f me d i c a l t r e a t me n t ,shock resistance 耐震強度；沖擊強度；抗沖擊性 operation stability 操縱穩(wěn)定性 stability stbiliti n.穩(wěn)定，穩(wěn)固,摘要（討論，結(jié)果）,慢啟動電路、過流保護電路和紋波調(diào)零電路對于半導(dǎo)體激光器驅(qū)動電源的性能都有著直接的影響。 實驗結(jié)果表明，該電流源輸出電流從0-250mA連續(xù)可調(diào)，電流紋波 0.5uA，輸出電流值變化小于 0.1 。,Slow turn-on, over-current protection circuit an

17、d stable waviness circuit all have direct influences on driven power. Th e experimental outcome indicated that, the current arranged 0-250mA can be continuously adjustable. Current waviness is n o more t ha n 0.5 u A a nd variety o f c u r r e n t v a lu e i s l ess t ha n 0.1 ,摘要（結(jié)論） conclusion,設(shè)計的

18、驅(qū)動電源較好的解決了用于醫(yī)療器械中的半導(dǎo)體激光器驅(qū)動電源的輸出不穩(wěn)定問題，在實驗室中的應(yīng)用效果良好。,The output unsteadiness of drive power of the semiconductor laser applied for me di c a l treatment has been solved effectively。This designed power has good results in the laboratory,關(guān)鍵詞：半導(dǎo)體激光器；驅(qū)動電源；慢啟動；保護電路,Key words：semiconductor lasers ; drive po

19、wer ; slow turn-on ; protection circuit,Lesson3 Professional English- Periodical,I. Introduction,National large-scale research projects; projects in related units; projects in schools or academic research unit, and even graduation project, etc.,Direction for the subject,II. Selection of Foreign Peri

20、odicals,Search channels,Dear Sir, This is sheng995 writing from outer space. I am currently working on human subject on the earth. I am investigating the component of human brain and its relationship to human behavior. Your paper, titled Evidence of Human brain initiation, published in the Journal o

21、f Never known (volume 1222, issue 13), is very interesting. I have a look at the abstract of your paper. The idea of exploring human brain is brilliant, and the finding that you summarized is very impressive. I am interested to have a look at the detail of the paper; however, unfortunately I dont ha

22、ve the access privilege to the full text. I am wondering whether you can send me one. It will be very appreciated. Thank you in advance. Best regards, sheng995,II. Selection of Foreign Periodicals,Search channels,II. Selection of Foreign Periodicals,Search method,III. Guided reading by Teleology /purpose,the Characteristics of scientific papers,precise words, standard expression objectivity,the Reading of scientific papers,Three “S” skill-survey, skim, study,Guid