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基于PROFIBUS-DP的PLC与FR-A740交流变频器通讯的实现 被引量:2
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作者 张素文 贺凯歌 《变频器世界》 2008年第5期91-94,共4页
简述了由工控机、PLC、变频器组成的基于Profibus-DP总线的控制系统,详细的分析了变频器通讯前的参数设置及Profibus-DP通讯协议,并给出了编程过程及代码。
关键词 交流变频器 prof IBUS-DP PLC 通讯协议
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PROFIBUS总线在S7-300PLC与6SE70交流调速器通信中的应用
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作者 裴永清 刘浩 杨荣 《电气传动自动化》 2013年第3期36-38,共3页
PROFIBUS-DP总线是当前工业控制中应用最广泛的现场总线技术之一,它与交直流调速装置、PLC控制模块以及上位机共同构建了工业控制中的底层硬件系统。主要讨论了PROFIBUS-DP总线中6SE70交流调速器的通信方式和相关参数设置,并给出了PLC S... PROFIBUS-DP总线是当前工业控制中应用最广泛的现场总线技术之一,它与交直流调速装置、PLC控制模块以及上位机共同构建了工业控制中的底层硬件系统。主要讨论了PROFIBUS-DP总线中6SE70交流调速器的通信方式和相关参数设置,并给出了PLC S7-300与6SE70交流调速器间基于PROFIBUS-DP总线的编程实现方法。最后结合单电机的交流拖动调速装置,对整个系统进行了说明。 展开更多
关键词 prof IBUS—DP总线 6SE70 PLC 通讯
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Prof.Shucai Li
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《Journal of Rock Mechanics and Geotechnical Engineering》 SCIE CSCD 2013年第5期421-421,共1页
Ph.D.,Professor Director of Geotechnical and Structural Engineering Research Center,Dean of Civil Engineering School,Shandong University,No.17923,Jingshi Rd.,Jinan,Shandong,China Tel:+86-531-88395428(0);Fax:+86-531-88... Ph.D.,Professor Director of Geotechnical and Structural Engineering Research Center,Dean of Civil Engineering School,Shandong University,No.17923,Jingshi Rd.,Jinan,Shandong,China Tel:+86-531-88395428(0);Fax:+86-531-88395428E-mail:lishucai@sdu.edu.cn Education background Li Shucai,born in 1965,received Ph.D.from the Institute of Rock and Soil Mechanics(IRSM),Chinese Academy of Sciences(CAS)in1996.At present,he is the dean of Civil Engineering School and the director of Geotechnical and Structural Engineering Research Center.Shandong University.He was elected as the president of Underground Engineering Association(UEA)affiliated to Chinese Society for Rock Mechanics and Engineering(CSRME).He has been engaging in the stability of surrounding rock masses in underground projects and the reinforcement effect of rock bolts for a long time.He is a well-known international youth expert in the field of rock mechanics.He has published more than 100 journal and conference papers and 2 monographs.He has been a professor of IRSM,CAS.His research interests cover stability assessment of fractural rock mass and anchor effect,minimum thickness of rock cover in cross-harbour tunnel,and unfavorable geological forecast technology and disaster control. 展开更多
关键词 profESSOR Shandong rock affiliated DIRECTOR DIRECTOR DISASTER prof.Shucai LI ANCHOR reinforcement
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Mutual interflow between Prof.Robens Belfort (President of ICO 2006 World Congress of Ophthalmolgoy) and Prof.Xiu-Wen Hu (Editor-in-Chief of IJO)
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《国际眼科杂志》 CAS 2004年第4期601-601,共1页
关键词 ICO and prof.Xiu-Wen Hu World Mutual interflow between prof.Robens Belfort President of ICO 2006 World Congress of Ophthalmolgoy Editor-in-Chief of IJO
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The Application Study on Genre-based Approach in the English Exposition Writing Teaching for Professional College English Major Students
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作者 樊文娟 《海外英语》 2014年第15期49-51,共3页
The previous studies show that the major problems faced by the students in writing can be classified into two categories, that is, they don't know"what to write"and"how to write". The researche... The previous studies show that the major problems faced by the students in writing can be classified into two categories, that is, they don't know"what to write"and"how to write". The researchers found that the specific problems existing in their writings are identified as poor content, incomplete generic structure and misuse of cohesive devices. Therefore, on the basis of the previous studies, this study attempts to use Martin's genre theory to resolve the existed problems of the Professional College English major's students in writing and enhance students' discourse writing ability. Meanwhile, this study tries to answer the following questions:(1) Compared with the traditional writing teaching methods, whether the genre-based writing method has a significant effect to improve students' writing skills;(2) Whether the genre-based writing method is possible to increase students' interest in writing. The experimental result and the questionnaire show that genre-based approach in ESL writing teaching really can improve students' writing achievement and enhance students' interest in English writing. 展开更多
关键词 ESL writing GENRE Theory Genre-based APPROACH prof
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Prof. Huang Kun, an Accomplished Chinese Physicist, in Profile
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作者 Zhu Bangfen Lu Shengkui Zhang Shili 《Bulletin of the Chinese Academy of Sciences》 2002年第1期53-55,共3页
Prof. Huang Kun is an internationally renowned specialist in solid state physics and semi-conductors. He is a CAS member and also a foreign member of the Swedish Academy of Sciences and a fellow of the Third World Aca... Prof. Huang Kun is an internationally renowned specialist in solid state physics and semi-conductors. He is a CAS member and also a foreign member of the Swedish Academy of Sciences and a fellow of the Third World Academy of Sciences. He received China's 2001 Supreme Scientific and Technological Award on February,2002, for his lifetime achievements. 展开更多
关键词 in profile In 黝黝 prof Huang Kun an Accomplished Chinese Physicist
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Affiliation with Natural Products at KIB of Prof.Zhou Jun:On the Occasion of 80th Anniversary of Kunming Institute of Botany,CAS 被引量:1
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作者 Jiang-Miao Hu 《Natural Products and Bioprospecting》 CAS 2018年第4期199-206,共8页
Prof.Zhou Jun,Academician of Chinese Academy of Sciences(1999),is a phytochemist and medicinal chemist of China.He is one of the pioneers of Kunming Institute of Botany,CAS and a major founder of the State Key Laborat... Prof.Zhou Jun,Academician of Chinese Academy of Sciences(1999),is a phytochemist and medicinal chemist of China.He is one of the pioneers of Kunming Institute of Botany,CAS and a major founder of the State Key Laboratory of Phytochemistry and Plant Resources in West China.The chemical compositions of some TCM from genus of Dioscorea,Aconitum,Panax,Paris,Cynanchum,Gastrodia,Dendrobium etc.and family Asclepiadaceae,Caryophyllaceae,Hypoxidaceae etc.have been explored by Prof.Zhou's team as steroids,triterpenoids,alkaloids,cyclic peptides and phenols etc.,which revealed the main active composition of those TCM such as Panax notoginseng,Paris yunnanensis and Gastrodia elata. 展开更多
关键词 prof.Zhou Jun Plant resources PANAX Paris Gastrodia CYNANCHUM
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预应力钢绞线生产线PROFIBUS-DP总线通讯故障实用诊断处理方法 被引量:1
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作者 廖连芽 《金属制品》 CAS 2022年第6期42-45,共4页
PROFIBUS-DP现场总线通讯系统是1×15预应力钢绞线生产线电控系统的关键组成部分,但通讯中断故障频繁发生,由于缺乏有效解决方法,严重制约生产线的稳定运行和高效生产。基于系统的工作原理和结构特点,针对产生故障的原因,提出了一... PROFIBUS-DP现场总线通讯系统是1×15预应力钢绞线生产线电控系统的关键组成部分,但通讯中断故障频繁发生,由于缺乏有效解决方法,严重制约生产线的稳定运行和高效生产。基于系统的工作原理和结构特点,针对产生故障的原因,提出了一种比较实用、有效的解决方案。阐述了该方案的具体操作步骤,在维修实践中得到较好验证和推广,为确保生产线的稳定、高效运行发挥了积极作用。 展开更多
关键词 预应力钢绞线 prof1BUS-DP 现场总线 通讯系统
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Prof.Sheng Canruo's Experience in Acupuncture Treatment of Throat Diseases with Yan Si Xue 被引量:1
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作者 姚文龙 王新中 《Journal of Traditional Chinese Medicine》 SCIE CAS CSCD 2000年第2期122-125,共4页
Yan Si Xue(咽四穴)refer to four points in the throat summarized by Prof.Sheng Canruo in his long-year clinical experience based on the combination of TCM theory and the knowledge of modernmedical anatomy.By taking “Y... Yan Si Xue(咽四穴)refer to four points in the throat summarized by Prof.Sheng Canruo in his long-year clinical experience based on the combination of TCM theory and the knowledge of modernmedical anatomy.By taking “Yan Si Xue” as main points,and other differential adjunct points,Prof.Sheng has obtained satisfactory therapeutic results in treating various throat diseases such ashoarseness,paralysis of vocal cord,dysphonia after radiotherapy on throat tumor,vocal nodules,disorder of the glossopharyngeal nerve,hysteric aphasia,and acute or chronic laryngopharyngitis. 展开更多
关键词 prof.Sheng Canruo’s Experience in Acupuncture Treatment of Throat Diseases with Yan Si Xue
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Application of Random Process in Soil Profile Modeling
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作者 Yan Shuwang , Jia Xiaoli and Deng Weidong Professor, Dept. of Hydraulic Eng., Tianjin University, Tianjin 300072Graduate student, Dept. of Hydraulic Eng., Tianjin University, Tianjin 300072Senior Engineer, Chongqing Institute of Highway Science 《China Ocean Engineering》 SCIE EI 1994年第4期457-470,共14页
When using the random process in soil profile modeling, the stationary and ergodicity of thesoil properties in the profile must be tested. This paper describes a procedure for stationary and ergodicity testing. Numeri... When using the random process in soil profile modeling, the stationary and ergodicity of thesoil properties in the profile must be tested. This paper describes a procedure for stationary and ergodicity testing. Numerical examples were given for demonstration. A log-cosine function is suggested to simulate the correlation function, which has been proved to be good for soil profile modeling. 展开更多
关键词 RANDOM process soil prof He MODELING STATIONARY ERGODICITY correlation function scale of FLUCTUATION
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PROFESSOR ZHU KEZHEN OPENING UP A PATH FOR RESEARCH ON CLIMATIC CHANGE IN CHINA
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作者 施雅风 《Chinese Geographical Science》 SCIE CSCD 1994年第2期186-192,共7页
PROFESSOR ZHU KEZHEN OPENING UP A PATH FOR RESEARCH ON CLIMATIC CHANGE IN CHINA ShiYafeng(施雅风)(LanzhouInstit... PROFESSOR ZHU KEZHEN OPENING UP A PATH FOR RESEARCH ON CLIMATIC CHANGE IN CHINA ShiYafeng(施雅风)(LanzhouInstituteofGlaciologyan... 展开更多
关键词 prof. ZHU Kezhen CLIMATIC CHANGE climate RESEARCH meteorologist
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PROF. LI XUEGENG'S EXPERIENCE IN TREATMENT OF PEDIATRIC EMERGENCIES BY FLYING-NEEDLING THERAPY
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作者 赵伟强 《Journal of Traditional Chinese Medicine》 SCIE CAS CSCD 1996年第3期218-223,共6页
Prof. Li Xuegeng,born in an oldwell-known family of Chinese Medicine,has been engaged in Chinese Medicine forabout fifty years.He has both wide range ofknowledge and rich experience,being espec-ially good at the appli... Prof. Li Xuegeng,born in an oldwell-known family of Chinese Medicine,has been engaged in Chinese Medicine forabout fifty years.He has both wide range ofknowledge and rich experience,being espec-ially good at the application of flying need-ling(belonging to shallow needling or skinneedling)for treatment of pediatric emer-gencies with excellent therapeutic effects. 展开更多
关键词 decoction PEDIATRIC DIARRHEA COUGH fifty acupuncture prof stimulating shallow engaged
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Photo News——Prof.Xiu-Wen Hu(Chief Editor) in AAO 2019
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《International Journal of Ophthalmology(English edition)》 SCIE CAS 2020年第2期365-365,共1页
Prof.Bruce Spivey,Past President of ICO(left),and Prof.Bradly Straatsma(right),President Emeritus of ICO Foundation,met Prof Xiu-Wen HuProf.Peter Wiedemann,ICO President,met Prof Xiu-Wen Hu,IJO Chief Editor,and gave g... Prof.Bruce Spivey,Past President of ICO(left),and Prof.Bradly Straatsma(right),President Emeritus of ICO Foundation,met Prof Xiu-Wen HuProf.Peter Wiedemann,ICO President,met Prof Xiu-Wen Hu,IJO Chief Editor,and gave guidance to the development of IJOProf.Xiu-Wen Hu met Prof.David ParkeⅡ,CEO of American Academy of Ophthalmology(AAO)Prof.Xiu-Wen Hu met Prof.Sundaram Natarajan,President of AIOS(left),and Prof.Zbigniew Zagorski(middle). 展开更多
关键词 AAO Chief Editor Photo NEWS prof.Xiu-Wen HU in AAO 2019
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Photo News——Prof.Xiu-Wen Hu (Chief Editor) in AAO 2019
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《International Journal of Ophthalmology(English edition)》 SCIE CAS 2019年第12期F0003-F0003,共1页
关键词 AAO Chief Editor Photo News prof.Xiu-Wen Hu in AAO 2019
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Responses to the comments of Prof. Frederic Meunier
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作者 Jiaxu Liu Qin Xin Hongchen Guo 《Chinese Journal of Catalysis》 SCIE EI CAS CSCD 北大核心 2019年第1期1-3,共3页
Thanks for your straightforward comments and constructive suggestions on our recent study on dual‐beam FT‐IR spectroscopy published in Chin.J.Catal.,2017,38,13?19.We are glad to reply your questions and to give some... Thanks for your straightforward comments and constructive suggestions on our recent study on dual‐beam FT‐IR spectroscopy published in Chin.J.Catal.,2017,38,13?19.We are glad to reply your questions and to give some supplementary remarks concerning the dual beam FT‐IR spectrometer,its usage and application progress.The first question you posed is about the nature of the feed gas flow regime in sample cell(e.g.,plug flow or CSTR‐like).You worry about a non‐CSTR flow regime in the sample cell of our dual beam IR‐cell reactor,which will result in difference in the gas composition of sample cell and reference cell,and consequently an imperfect gas‐phase correction. 展开更多
关键词 Responses to the comments of prof IR Frederic Meunier
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Photo News——Prof.Xiu-Wen Hu(Chief Editor) in AAO 2019
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《International Journal of Ophthalmology(English edition)》 SCIE CAS 2019年第11期F0003-F0003,共1页
关键词 AAO Chief Editor Photo News prof.Xiu-Wen Hu in AAO 2019
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石原研二教授简介(Prof.Kenji Ishihara)
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《自然灾害学报》 CSCD 北大核心 2005年第3期167-167,共1页
关键词 教授简介 土动力学 prof.Kenji Ishihara 土力学 岩土工程
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特别专栏:本刊总顾问Prof G.O.H.Naumann提供的眼科图片荟萃(英文)
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《国际眼科杂志》 CAS 2011年第10期1692-1694,共3页
关键词 专栏 图片 prof G.O.H.Naumann 眼科 英文
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Series Reports for World Eminent Ophthalmologists (Part 1) Brief Introduction on Prof. George C. Y. Chiou. PhD
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《International Journal of Ophthalmology(English edition)》 SCIE CAS 2011年第3期332-333,共2页
Dr.George Chiou is Professor and Director of the Institute of Ocular Pharmacology and Professor of Neuroscience and Experimental Therapeutics at Texas A&M University System Health Science Center.He has served as H... Dr.George Chiou is Professor and Director of the Institute of Ocular Pharmacology and Professor of Neuroscience and Experimental Therapeutics at Texas A&M University System Health Science Center.He has served as Head of Department of Medical Pharmacology and Toxicology for 27.5 years until the department was reorganized in 2006.He also is an Adjunct Professor of Surgery and Ophthalmology at Texas A&M University College of Medicine, 展开更多
关键词 Brief Introduction on prof Chiou George C Part 1 Series Reports for World Eminent Ophthalmologists REPORTS World
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美国AAO常务副主席Prof.H.Dunbar Hoskins Jr.给本刊来信(英文)
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作者 H. Dunbar Hoskins Jr 《国际眼科杂志》 CAS 2008年第2期402-402,共1页
Dear Dr. Hu,Thank you for sending me a copy of your publication, the International Journal of Ophthalmology. It is quiet impressive and I
关键词 very AAO prof.H.Dunbar Hoskins Jr
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