3rd ASEE International Colloquium on Engineering Education opened in Tsinghua University on September 7, 2004. Xu Kuangdi, Vice Chairperson of the Chinese People’s Political Consultative Conference and President of C...3rd ASEE International Colloquium on Engineering Education opened in Tsinghua University on September 7, 2004. Xu Kuangdi, Vice Chairperson of the Chinese People’s Political Consultative Conference and President of Chinese Academy of Engineering, Wu Qidi, Deputy Minister of Ministry of Education, P.R.C., Sherra E. Kerns, President of American Society of Engineering Education and Vice-president of Olin College of Engineering, and Jack Wilson, President of University of Massachusetts System, attended the opening ceremony held in the morning and all gave speeches at the ceremony.展开更多
Frank L.Lewis (Life Fellow,IEEE) received the Ph.D.degree from the Georgia Institute of Technology.He is currently a member of the National Academy of Inventors and the Moncrief-O'Donnell Chair with The University...Frank L.Lewis (Life Fellow,IEEE) received the Ph.D.degree from the Georgia Institute of Technology.He is currently a member of the National Academy of Inventors and the Moncrief-O'Donnell Chair with The University of Texas at Arlington Research Institute.He is the author of seven U.S.patents,numerous journal special issues and journal articles,and 20 books.He received the Fulbright Research Award,the NSF Research Initiation Grant,the ASEE Terman Award,the International Neural Network Society Gabor Award,the U.K.Institute of Measurement and Control Honeywell Field Engineering Medal,the IEEE Computational Intelligence Society Neural Networks Pioneer Award,the AIAA Intelligent Systems Award,and the AACC Ragazzini Award.展开更多
Frank L.Lewis (Life Fellow,IEEE) received the Ph.D.degree from the Georgia Institute of Technology.He is currently a member of the National Academy of Inventors and the Moncrief-O'Donnell Chair with The University...Frank L.Lewis (Life Fellow,IEEE) received the Ph.D.degree from the Georgia Institute of Technology.He is currently a member of the National Academy of Inventors and the Moncrief-O'Donnell Chair with The University of Texas at Arlington Research Institute.He is the author of seven U.S.patents,numerous journal special issues and journal articles,and 20 books.He received the Fulbright Research Award,the NSF Research Initiation Grant,the ASEE Terman Award,the International Neural Network Society Gabor Award,the U.K.Institute of Measurement and Control Honeywell Field Engineering Medal,the IEEE Computational Intelligence Society Neural Networks Pioneer Award,the AIAA Intelligent Systems Award,andthe AACC Ragazzini Award.展开更多
In this study,a GC-MS/SIM method was used to analyze 16 PAHs in soil by ASE on-line clean-up.The average recoveries were ranged from 67% to 129%.The relative standard deviations were between 2.7% and 21.1%.The calcula...In this study,a GC-MS/SIM method was used to analyze 16 PAHs in soil by ASE on-line clean-up.The average recoveries were ranged from 67% to 129%.The relative standard deviations were between 2.7% and 21.1%.The calculated limits of detection were no more than 0.95 ng/g.This method was fast,simple,and cost-saving,and can be used in the large quantities of samples analysis.展开更多
根据三轴光纤陀螺的高精度需求,采用大功率高稳定性的高精度双程后向方案掺铒光纤光源。通过对ASE光源的理论分析建立数学模型,并根据所用掺铒光纤及泵浦光源的参数对光源进行谱型分析,确定光路方案。再以掺铒光纤和泵浦激光器的温度特...根据三轴光纤陀螺的高精度需求,采用大功率高稳定性的高精度双程后向方案掺铒光纤光源。通过对ASE光源的理论分析建立数学模型,并根据所用掺铒光纤及泵浦光源的参数对光源进行谱型分析,确定光路方案。再以掺铒光纤和泵浦激光器的温度特性和补偿为研究重点,对掺铒光纤的长度和掺杂浓度以及泵浦功率和铒纤的匹配性进行试验,最终采用铒纤长度19 m,泵浦波长974.6 nm,泵浦功率140 m A,得到光源光功率为20 m W,平均波长变化量小于0.5′10^(-6)/℃,满足光纤陀螺对ASE光源的要求。展开更多
文摘3rd ASEE International Colloquium on Engineering Education opened in Tsinghua University on September 7, 2004. Xu Kuangdi, Vice Chairperson of the Chinese People’s Political Consultative Conference and President of Chinese Academy of Engineering, Wu Qidi, Deputy Minister of Ministry of Education, P.R.C., Sherra E. Kerns, President of American Society of Engineering Education and Vice-president of Olin College of Engineering, and Jack Wilson, President of University of Massachusetts System, attended the opening ceremony held in the morning and all gave speeches at the ceremony.
文摘Frank L.Lewis (Life Fellow,IEEE) received the Ph.D.degree from the Georgia Institute of Technology.He is currently a member of the National Academy of Inventors and the Moncrief-O'Donnell Chair with The University of Texas at Arlington Research Institute.He is the author of seven U.S.patents,numerous journal special issues and journal articles,and 20 books.He received the Fulbright Research Award,the NSF Research Initiation Grant,the ASEE Terman Award,the International Neural Network Society Gabor Award,the U.K.Institute of Measurement and Control Honeywell Field Engineering Medal,the IEEE Computational Intelligence Society Neural Networks Pioneer Award,the AIAA Intelligent Systems Award,and the AACC Ragazzini Award.
文摘Frank L.Lewis (Life Fellow,IEEE) received the Ph.D.degree from the Georgia Institute of Technology.He is currently a member of the National Academy of Inventors and the Moncrief-O'Donnell Chair with The University of Texas at Arlington Research Institute.He is the author of seven U.S.patents,numerous journal special issues and journal articles,and 20 books.He received the Fulbright Research Award,the NSF Research Initiation Grant,the ASEE Terman Award,the International Neural Network Society Gabor Award,the U.K.Institute of Measurement and Control Honeywell Field Engineering Medal,the IEEE Computational Intelligence Society Neural Networks Pioneer Award,the AIAA Intelligent Systems Award,andthe AACC Ragazzini Award.
文摘报道了一种利用频率为几千赫兹的高频 CO2激光脉冲的热冲击效应制作长周期光纤光栅的新技术。实验中,作者首次发现这种新型的长周期光纤光栅具有一些独特的光学特性,比如弯曲特性和横向负载特性等,这主要是因为用高频 CO2激光脉冲写成的长周期光纤光栅的横截面折射率分布不对称所致。基于这种新型长周期光纤光栅,设计了一种用于减小掺铒光纤放大器噪声系数的 ASE 噪声滤波器和平坦掺铒光纤放大器增益谱的增益均衡器,此外,还利用这种新型长周期光纤光栅独特的弯曲和压力特性,研究设计了两种用于动态平坦掺铒光纤放大器增益谱的动态增益均衡器。
文摘In this study,a GC-MS/SIM method was used to analyze 16 PAHs in soil by ASE on-line clean-up.The average recoveries were ranged from 67% to 129%.The relative standard deviations were between 2.7% and 21.1%.The calculated limits of detection were no more than 0.95 ng/g.This method was fast,simple,and cost-saving,and can be used in the large quantities of samples analysis.
文摘根据三轴光纤陀螺的高精度需求,采用大功率高稳定性的高精度双程后向方案掺铒光纤光源。通过对ASE光源的理论分析建立数学模型,并根据所用掺铒光纤及泵浦光源的参数对光源进行谱型分析,确定光路方案。再以掺铒光纤和泵浦激光器的温度特性和补偿为研究重点,对掺铒光纤的长度和掺杂浓度以及泵浦功率和铒纤的匹配性进行试验,最终采用铒纤长度19 m,泵浦波长974.6 nm,泵浦功率140 m A,得到光源光功率为20 m W,平均波长变化量小于0.5′10^(-6)/℃,满足光纤陀螺对ASE光源的要求。
