Now showing items 1-20 of 462

    • 1x2 demultiplexer for a light waveguide communications system based on a holographic grating 

      Ren, Xuechang; Zhang, Xiangsu; Wang, Canhui; Liu, Shou; 任雪畅; 张向苏 (PROC SPIE, 2009)
      2-channel multiplexer/demultiplexer (Muxer/Demuxer) is a key component for bidirectional data traffics applied for optical communication. Up to date various types of Muxer/Demuxer have been proposed and demonstrated. A ...
    • 3-D simulation of remote field eddy current detection for stress corrosion cracks in pipeline 

      Wu, De Hui; Zhang, Zhong Yuan; Liu, Zhen Liang; Xia, Xiao Hao; 吴德会 (Trans Tech Publications Ltd, 2013)
      Three-dimensional (3-D) finite element simulation models are conducted to simulate the in-service inspection of the axial stress corrosion cracking (SCC) in ferromagnetic pipeline using remote field eddy current (RFEC) ...
    • 3D underwater topography rebuilding based on single beam sonar 

      Guo, Yinbin; 郭隐彪 (IEEE Computer Society, 2013)
      In this paper we rebuild the 3D underwater topography of an experimental pool using single beam sonar. Compared with other sensors like multi-beam sonar and some other optical devices single beam sonar is cheap and small. ...
    • 4H-SiC wafers studied by X-ray absorption and Raman scattering 

      Xu, Qiang; Sun, Hua Yang; Chen, Cheng; Jang, Ling-Yun; Rusli; Mendis, Suwan P.; Tin, Chin Che; Qiu, Zhi Ren; Wu, Zhengyun; Liu, Chee Wee; Feng, Zhe Chuan; 吴正云 (MATER SCI FORUM, 2012)
      Synchrotron radiation X-ray absorption and UV 325 nm excitation Raman scattering-photoluminescence (PL) have been employed to investigate a series of 4H-SiC wafers, including bulk, epitaxial single or multiple layer ...
    • A broadband dual-polarized microstrip antenna with cavity-backed proximity-coupling feeding 

      Chen, Shulin; Liu, Yanhui; Ren, Yi; Liu, Qing Huo; 刘颜回; 柳清伙 (Institute of Electrical and Electronics Engineers Inc., 2014 Octob)
      A broadband cavity-backed proximity-coupled dual-polarized microstrip antenna is presented. The cavity backed ground plane is used with optimized parameters to enhance the feeding coupling and thus to broaden the bandwidth ...
    • A coaxial measurement system for electromagnetic parameters at microwave frequencies 

      Liu, Xing; Chen, Xian Yan; Lin, Yuan; Ye, Long Fang; Xiao, Fen; Liu, Qing Hu; 肖芬; 柳清伙 (TRANS TECH PUBLICATIONS LTD, 2014)
      In this paper, an improved coaxial measurement system with a newly designed coaxial fixture is presented. The electromagnetic parameters of samples are retrieved from the scattering parameters measured by avector network ...
    • A current harmonic detection method via input observer 

      Li, Po; Huang, Di Bin; Wang, Peng; 李钷 (Trans Tech Publications, 2014)
      The current harmonic detection method is an important part in the control of active power filters used in power systems, since inaccuracy in harmonic detection yields to incorrect compensation. In this paper, an input ...
    • A damped harmonic composite control algorithm on transformerless shunt hybrid active power filter 

      Zhang, Lin; Meng, Chao; Shi, Jianlong; Xue, Wendong; Hong, Yongqiang; 薛文东; 洪永强 (Institute of Electrical and Electronics Engineers Inc., 2014 Novem)
      Whereas transformerless shunt hybrid active power filter (TLS-PHAPF) is a novel topology of APF and a novel control strategy, it was provided to improve the quality of power system. Firstly, a control algorithm of dampen ...
    • A Genetic Algorithm Based Approach for Event Synchronization Analysis in Real-time Embedded Systems 

      Chen, Yan; Lee, Yann-Hang; Xu, Xiaofeng; Wong, W. Eric; Guo, Donghui; 郭东辉 (IEEE COMPUTER SOC, 2009)
      In real-time embedded systems, due to race conditions, synchronization order between events may be different from one execution to another. This behavior, is permissible as in concurrent systems, but should be fully analyzed ...
    • A hypergraph based semi-supervised band selection method for hyperspectral image classification 

      Guo, Zhouxiao; Bai, Xiao; Zhang, Zhihong; Zhou, Jun; 周军现 (IEEE Computer Society, 2013)
      Band selection is a fundamental problem in hyperspectral data processing. In this paper, we present a semi-supervised learning approach and a hypergraph model to select useful bands based on few labeled object information. ...
    • A low voltage high frequency programmable Gm-C bandpass filter 

      Zhang, Jian-Qin; Lil, Kai-Hang; Wang, Ri-Yan; 李开航 (IEEE, 2007)
      A Low Voltage high frequency CMOS continuous time Band-pass filter with programmable center frequency and quality factor is presented. The Operational Transconductance Amplifier (OTA) in this Gm-C filter design is implemented ...
    • A machining error compensation method using on-machine profile measurement in 3-axis aspheric grinding 

      Huang, Hao; Lei, Xiangyang; Wang, Jian; Xu, Qiao; He, Liangyu; Guo, Yinbiao; 郭隐彪 (Trans Tech Publications, 2011)
      The causes of machining errors are very complicated and apt to mutual influence in aspheric grinding, so it is difficult to improve machining accuracy by control one cause. To compensate the machining error of large aspheric ...
    • A membrane-based sample preparation kit for waterborne pathogens: Design and manufacture 

      Zhang, Yulong; Dong, Tao; 张玉龙 (Trans Tech Publications, 2013)
      Membrane-based microfluidic devices have been demonstrated in recent literature to show a significant potential in developing low-cost but high-efficient analytical devices. Usually, the step of sampling and sample preparation ...
    • A MEMS-based infrared emitter array for combat identification 

      San, Haisheng; Chen, Xuyuan; Xu, Peng; Li, Fangqiang; Cheng, Meiying; 伞海生; 陈旭远 (PROC SPIE, 2008)
      The silicon-based MEMS (MEMS: microelectromechanical systems) Infrared (IR) emitter arrays of 1x2, 2x2 and 3x3 elements are presented. The MEMS infrared emitters were fabricated on silicon-on-insulator (SOI) wafer. The ...
    • A Method For Part Analysis And Selection In The Renewal Process Of Product Family Architecture 

      Lai Rongshen; Hou Liang; Wang Haolun; Wu Yongming; Zhao Na; 侯亮 (ADV MATER RES-SWITZ, 2012)
      Aiming at selecting appropriate parts in the product family architecture for innovating, a method for part analysis and selection in the renewal process of product family architecture is initially proposed. On the basis ...
    • A model description of the first-order phase transition in MnFeP1-xAsx 

      Tegus, O; Lin, GX; Dagula, W; Fuquan, B; Zhang, L; Bruck, E; de Boer, FR; Buschow, KHJ; 林国兴 (J MAGN MAGN MATER, 2005-04)
      We present a description of the critical behavior at the first-order phase transition in MnFeP1-xAsx system in terms of the Bean-Rodbell model. Within the molecular-field approximation, the Gibbs free energy of the system ...
    • A model of creative spillovers and economic growth 

      Yi, Chen; Chen, Bin; 陈宜 (IEEE Computer Society, 2011)
      Recent theories of economic growth, including those of Romer, Porter, and Jacobs, have stressed the role of technological spillovers in generating growth. Such knowledge spillovers are particularly effective in cities, ...
    • A model predictive control method for bidirectional DC-DC converter in the ZVS condition 

      Li, Po; Huang, Di Bin; Zhang, Yi Ru; 李钷 (Trans Tech Publications, 2014)
      The bidirectional DC-DC converter can achieve energy storage and transfer by adjusting the magnitude and direction of the current, which is widely used in the DC interconnect micro-grid system and battery energy management ...
    • A Monitoring and Wireless Transmission System on the Machining Tool 

      Lin, Jing; Guo, Yinbiao; Yang, Wei; Zhu, Rui; Tang, Ni; 林静; 郭隐彪; 杨炜; 朱睿 (ADV MATER RES-SWITZ, 2011)
      This paper presents a wireless transmission and data acquisition system for monitoring optical aspheric grinding environment. The hardware and software framework of the system is discussed. The result of experiments verifies ...
    • A new computational verb image interpolation algorithm 

      Wang, Xin; Liao, Yinghao; Liu, Huiqing; Guo, Zhujun; Yi, Caiqin; 王新; 廖英豪 (IEEE Computer Society, 2011)
      In this paper, a new image interpolation algorithm based on computational verb theory is proposed. The algorithm improves previous results by increasing the number of verb templates and enlarging the size of scanning ...