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Micro-Displace Sensor Based on Self-Mixing Interference of the Fiber Laser With Phase Modulation

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Photonic Sensors 2014年第4期4卷 379-384页

作者： Hui HAO Dongmei GUO Ming wang wei xia xiaoqi NI Jiangsu Key Lab of Opto-Electronic Technology School of Physical Science and Technology Nanjing NormalUniversity Nanjing 210023 China

Micro-displacement measurement based on self-mixing interference using a fiber laser system was demonstrated. The sinusoidal phase modulation technique was introduced into the fiber laser self-mixing interference measurement system to improve the measurement resolution. The phase could be demodulated by the Fourier analysis method. Error sources were evaluated in detail, and the system was experimentally applied to reconstruct the motion of a high-precision commercial piezoelectric ceramic transducer （PZT）. The displacement measurement resolution was well beyond a half-wavelength. It provides a practical solution for displacement measurement based on all optical-fiber sensing applications with high precision.

关键词： Self-mixing interference micro-displacement sensing phase modulation fiber laser

Adaptive Control of Helicopter Ground Resonance with Magnetorheological Damper

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Chinese Journal of Aeronautics 2007年第6期20卷 501-510页

作者： wang wei xia Pinqi College of Aerospace Engineering Nanjing University of Aeronautics and Astronautics Nanjing 210016 China

The methodology for adaptive control of helicopter ground resonance with magnetorheological （MR） damper is presented. The adaptive inverse control method is used to control the output damping force of MR damper and the range of the damping force is given. Through the adaptive inverse control, the damping force of MR damper is fit to a desired damping force. With the background of applying MR damper to control of helicopter ground resonance, a model of loss force and an adaptive arithmetic for stabilization of the coupled rotor/fuselage system are presented. The simulation shows that the controller presented in this paper can stabilize the rotor/fuselage coupling system quickly and control the helicopter ground resonance effectively.

关键词： ground resonance adaptive control magnetorheological damper

Selection of Reference Genes for Gene Expression Analysis in Nilaparvata lugens with Different Levels of Virulence on Rice by Quantitative Real-Time PCR

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Rice science 2014年第6期21卷 305-311页

作者： wang wei-xia LAI Feng-xiang LI Kai-long FU Qiang State Key Laboratory of Rice Biology China National Rice Research Institute

The brown planthopper Nilaparvata lugens Stal （Homoptera： Delphacidae） can cause hopperburn by feeding on rice and also can transmit the grassy stunt disease. Resistant rice varieties have been developed, but several N. lugens strains can recover their virulence to these resistant rice varieties. In the present study, reference genes with stable expression levels in N. lugens populations showed different levels of virulence to susceptible and resistant rice varieties. The expression of six candidate reference genes in N. lugens feeding on susceptible and resistant rice varieties was analyzed. These genes were evaluated for their potential use in the analysis of differential gene expression. Polymerase chain reaction data was generated from N. lugens, including two different treatments （resistant or susceptible rice） and three virulent N. lugens populations. Three software programs （BestKeeper, Normfinder and geNorm） were used to assess the candidate reference genes. Both geNorm and Normfinder identified the genes 18S, E-ACT, E-TUB and a-TUB as the most stable reference genes. BestKeeper identified ETIF1 as the optimal reference gene with the least overall variation, whereas 18S and a-TUB were the second and third most stably expressed genes, respectively. Therefore, we concluded that the genes 18S and a-TUB were the most suitable reference genes in N. lugens. These results will facilitate future transcript profiling studies on N. lugens populations that show variation in virulence levels on different rice varieties.

关键词： reference gene Nilaparvata lugens quantitative real-time PCR gene expression rice

YU Ren-cun(郁仁存)——A Famous Oncologist in Integrative Medicine

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Chinese Journal of Integrative Medicine 2008年第3期14卷 232-233页

作者： wang wei-xia

YU Ren-cun was born on August 1, 1934. After graduating from Jiangxi Medical College in 1955, he took part in the very first Western Doctors＇ Class for Learning Traditional Chinese Medicine （TCM） held in Beijing from March 1959 to December 1961. Prof. YU systematically learned TCM while taking this class. Since 1962, he has been working in the Beijing Hospital of Traditional Chinese Medicine, eventually being promoted to a Chief Physician by the Beijing Municipal Government in May of 1981. In 1997, Prof. YU was selected as a well-known veteran for the National TCM Doctor Inheritance Work by the State Administration of Traditional Chinese Medicine （SATCM）. The State Council of China has awarded him a special subsidy every month for his excellent work.

关键词： In 郁仁存 YU Ren-cun A Famous Oncologist in Integrative Medicine

wang Ling-tai(王灵台)—A Renowned Hepatologist in Integrative Medicine

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Chinese Journal of Integrative Medicine 2010年第4期16卷 361-363页

作者： wang wei-xia

wang Ling-tai, born in 1940, graduated from the Department of Clinical Medicine of Shanghai Medical College in 1963. He is now a Professor, chief physician, and PhD supervisor of Shuguang Hospital, Affiliated to the Shanghai University of Traditional Chinese Medicine. Prof. wang is the ex-president of Shuguang Hospital, the director of the Coordination Group, National Liver Disease,

关键词： In 王灵台 wang Ling-tai A Renowned Hepatologist in Integrative Medicine

Transgene Flow from Glufosinate-Resistant Rice to Improved and Weedy Rice in China

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Rice science 2014年第5期21卷 271-281页

作者： LU Yong-liang Nilda R.BURGOS wang wei-xia YU Liu-qing Center of Rice Cultivation Technology Research China National Rice Research Institute Department of Crop Soil and Environmental Sciences University of ArkansasFayetteville 72704 AR USA

The development of transgenic rice with novel traits in China can increase rice productivity, but transgene flow to improved or weedy rice has become a major concern. We aimed to evaluate the potential maximum frequencies of transgene flow from glufosinate-resistant rice to improved rice cultivars and weedy rice. Treatments were arranged in randomized complete blocks with three replicates. Experiments were conducted between 2009 and 2010 at the Center for Environmental Safety Supervision and Inspection for Genetically Modified Plants, China National Rice Research Institute, Hangzhou, China. Glufosinate-resistant japonica rice 99-1 was the pollen donor. The pollen recipients were two inbred japonica rice （Chunjiang 016 and Xiushui 09）, two inbred indica rice （Zhongzu 14 and Zhongzao 22）, two indica hybrid rice （Zhongzheyou 1 and Guodao 1）, and one weedy indica rice （Taizhou weedy rice）. The offspring of recipients were planted in the field and sprayed with a commercial dose of glufosinate. Leaf tissues of survivors were analyzed by polymerase chain reaction to detect the presence of the transgene. The frequency of gene flow ranged from 0 to 0.488%. In 2009, the order of gene flow frequency was as follows： weedy rice 〉 Chunjiang 016 〉 Xiushui 09 and Zhongzu 14 〉 Guodao 1, Zhongzheyou 1 and Zhongzao 22. Gene flow frequencies were generally higher in 2009 than in 2010, but did not differ significantly among rice materials. Gene flow frequency was the highest in weedy rice followed by the inbred japonica rice. The risk of gene flow differed significantly between years and year-to-year variance could mask risk differences among pollen recipients. Gene flow was generally lesser in taller pollen recipients than in shorter ones, but plant height only accounted for about 30% of variation in gene flow. When flowering synchrony was maximized, as in this study, low frequencies of gene flow occurred from herbicide-resistant japonica rice to other cultivars and weedy rice. Average

关键词： gene flow hybrid rice japonica rice indica rice transgenic rice weedy rice glufosinate-resistance

基于滤波器估计的正交函数神经网络非线性系统H_∞控制

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控制与决策 2017年第2期32卷 281-286页

作者：王宏伟夏浩大连理工大学控制科学与控制工程学院辽宁大连116024

针对含有多个未知非线性项的非线性系统难于控制的问题,提出利用Chebyshev正交函数构建基于神经网络滤波器的控制器,并在权值学习误差有界和跟踪误差有界条件下,通过李雅普诺夫稳定性定理确定控制器的权值,保证了非线性系统的H∞鲁棒控... 详细信息

针对含有多个未知非线性项的非线性系统难于控制的问题,提出利用Chebyshev正交函数构建基于神经网络滤波器的控制器,并在权值学习误差有界和跟踪误差有界条件下,通过李雅普诺夫稳定性定理确定控制器的权值,保证了非线性系统的H∞鲁棒控制.最后,利用所提出算法对非线性系统的滤波器和控制器进行确定,仿真结果验证了该方法的有效性.

关键词：正交函数神经网络非线性系统 H∞控制

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海上风电机群维修排程在线多目标决策模型

中国电机工程学报 2017年第7期37卷 1993-2000页

作者：郭慧东王玮夏明超北京交通大学电气工程学院北京市海淀区100044

结合海上风电机群特点,介绍风电机群维修决策系统框架和决策流程,分析风电机组维修作业流程和成本构成。以风电机群整体维修成本、作业工作量均衡性为目标函数,以维修中心物料和人力资源配置为约束条件,建立海上风电机群日间维修作业排... 详细信息

结合海上风电机群特点,介绍风电机群维修决策系统框架和决策流程,分析风电机组维修作业流程和成本构成。以风电机群整体维修成本、作业工作量均衡性为目标函数,以维修中心物料和人力资源配置为约束条件,建立海上风电机群日间维修作业排程多目标决策模型。采用地理信息系统中的Kruskal空间分析算法寻找每组维修作业的往返路径最小生成树。应用带精英保留策略的离散粒子群算法求解模型,计算出全部待检修机组组合及其具体作业时段的非劣解集。仿真算例分析结果表明,模型可以降低维修总成本,验证了所提模型的可行性以及求解算法的有效性。

关键词：风力发电机群维修作业排程多目标决策离散粒子群算法

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密歇根州政府的高教资助政策体系及特点

黑龙江高教研究 2005年第5期23卷 169-171页

作者：王卫霞复旦大学高等教育研究所上海200433

美国密歇根州政府为帮助本州居民更好地参与高等教育,形成了一个包括高等教育资助机构、学生资助方案及配套的个人隐私政策的较完善的资助政策体系。文章主要介绍该政策体系并分析了其特点,以期为我国省市一级地方政府建立相应的政策提... 详细信息

美国密歇根州政府为帮助本州居民更好地参与高等教育,形成了一个包括高等教育资助机构、学生资助方案及配套的个人隐私政策的较完善的资助政策体系。文章主要介绍该政策体系并分析了其特点,以期为我国省市一级地方政府建立相应的政策提供借鉴作用。

关键词：密歇根州政府高教学生资助政策体系