Now showing items 242-261 of 462

    • New Method for Suppressing Lift-Off Effects Based on Hough Transform 

      Zhu Wen-long; Shen Han-xin; Chen Wen-xiang; 陈文芗 (IEEE COMPUTER SOC, 2009)
      A major problem for crack or electromagnetic property measurement in eddy current detection technique is the lift-off effect. The nonzero value of lift-off distance tends to smear out the discontinuity in the detected ...
    • Ni-electroplating of double-width micro-cantilever - art no 61090L 

      Liu, Yifang; Sun, Daoheng; Wang, Mingliang; Lv, WenLong; Maher, MA; Stewart, HD; Chiao, JC; 孙道恒 (SPIE-INT SOC OPTICAL ENGINEERING, 2006)
      Micro-electroplating technology has an increasingly wider application in the fabrication of MEMS devices. In order to fabricate a double-width cantilever beam which has three different electroplated areas. The proper ...
    • Non-contacting measurement system design of ultra-precision aspheric surface - art no 61502Q 

      Liu, JC; Guo, YB; Huang, J; Liu, GJ; 郭隐彪 (P SOC PHOTO-OPT INS, 2006)
      Aiming at various influential factors during the ultra-precision aspheric surface testing, this paper introduces an aspheric measurement technique based on the high accuracy and non-contacting measuring equipment of laser. ...
    • Nonequilibrium charge carrier lifetime testing equipment for semiconductor materials by a contactless microwave phase method 

      Chen, Song; Ni, Zurong; Xiao, Fen; 肖芬 (Trans Tech Publications, 2013)
      The accurate measurement of nonequilibrium charge carrier lifetime is of vital significance in research and manufacture of crystalline silicon solar cells. A testing equipment based on a contactless microwave phase method ...
    • Normalization approaches for multiplicative interval weights 

      Wang, Xiaoyan; 王小燕 (IEEE Computer Society, 2012)
      The problem of interval weights normalization is of perennial interest, as it is related to the problems of Multiple Criteria Decision Making (MCDM). Existing normalization approaches are just taken into account one ...
    • Novel photoluminescence from porous SiGe/Si multilayer structure 

      Zhou, Bi; Li, Xuemei; Pan, Shuwan; Chen, Songyan; Li, Cheng; 陈松岩; 李成 (IEEE Computer Society, 2012)
      The optical properties of porous SiGe/Si multilayer films prepared through electrochemical anodization have been investigated. The visible luminescence spectra with multiple emission peaks have been detected in the temperature ...
    • Novel scheme to increase the operation speed of a SOA for all-optical wavelength conversion - art no 67822A 

      Wu, Zhaoxi; Huang, Yuanqing; Weng, Zihua; Yan, Huangping; Wang, Yiju; Wan, Jin; Ye, Ruifang; 黄元庆; 翁梓华; 颜黄苹; 王一菊 (P SOC PHOTO-OPT INS, 2007)
      All-optical wavelength converters (AOWCs) are considered to be important components in future wavelength-division-multiplexed (WDM) networks. Cross gain modulation schemes in semiconductor optical amplifiers (SOA) are ...
    • Nucleosynthesis from LGRB-type accretion disks 

      Liu, T; Xue, L; Gu, W.-M.; Lu, J.-F.; 顾为民; 卢炬甫 (EDP Sciences, 2013)
      We investigate the vertical structure and element distribution of neutrino-dominated accretion flows around black holes in spherical coordinates with reasonable nuclear statistical equilibrium. According to our calculations, ...
    • Numerical investigation of different burner arrangement on a coal-fired boiler 

      Xing, Fei; Ji, Tingwei; Zhang, Shuai; Wang, Peiyong; 邢菲; 王培勇 (IEEE Computer Society, 2011)
      Numerical simulation of combustion process in a 200 MW coal-fired boiler is performed using CFD software. The work is focused on concentrate-lean burner, which arranges with different horizontal tilts and the air-staging ...
    • Numerical Simulation of Creep Crack Propagation for Austenitic Stainless Steel 0Cr18Ni9 at 550 degrees C 

      Chen, Lijie; Gong, Zunqun; Zhao, Qi; 陈立杰 (ADV MATER RES-SWITZ, 2011)
      First, tensile creep curve and creep propagation tests are conducted for austenitic stainless steel 0Cr18Ni9, i.e. 304 stainless steel at 550 degrees C. The corresponding time hardening creep law is given for stresses ...
    • Numerical simulation of the nozzle with self-oscillating flow using the VOF model 

      Zhang, Zhengfu; Wang, Junwei; Bao, Feng; 鲍锋 (Trans Tech Publications, 2012)
      The jet water shape of the nozzle will become a self-oscillating shape, if the triangle and U shape models are made into the normal nozzle. Using the VOF model, the jet shape of the nozzle will be simulated through a ...
    • Numerical simulation on aerodynamic of the wing in ground effect 

      Wu, Rong; Liang, Feng; 吴榕 (Trans Tech Publications, 2012)
      Aerodynamic characteristics of the wing NACA5312 in ground effect are investigated with the numerical simulation method. The N-S equations and the k-螘 turbulence model are solved by the finite volume method in CFD software. ...
    • Observation and novel explanation of instability of single wall carbon nanotube 

      Zhu, Xianfang; Meng, Tao; Li, Lunxiong; Wang, Zhanguo; Zhou, Huihua; Shen, Yutian; 朱贤方; 李论雄 (IEEE, 2006)
      Structural instability of single wall carbon nanotube under electron beam irradiation was investigated by our developed in-situ transmission electron microscopy observation technique. It was observed that the nanotube ...
    • On the security of key derivation functions in office 

      Zhou, Jun; Chen, Jie; Pan, Kun; Zhao, Cuicui; Li, Xiaochao; 陈杰; 李晓潮 (IEEE Computer Society, 2012)
      In Microsoft Office, the file security is mainly protected by user authentication and files encryption. The cryptographic keys are usually derived from a password. Thus, password based key derivation function (PBKDF) is ...
    • ON THE ULTRASONIC MANIPULATION OF MICRO/NANO PARTICLES 

      Yang, Hui; Guo, Hang; 郭航 (AMER SOC MECHANICAL ENGINEERS, 2008)
      in this paper, we study the ultrasonic manipulation of micro/nano in an ultrasonic standing wave field. Starting from the forces acting on particles in stationary standing wave field, we studied the factors affecting ...
    • One-in-hundreds-out laser splitting generated by diffraction of single holographic optical element 

      Zhang, Xiangsu; Liu, Shou; Ren, Xuechang; Liu, Ying; Chen, Xiaoyun; 张向苏; 任雪畅 (P SOC PHOTO-OPT INS, 2006)
      Technique using a holographic optical element to split one incident laser beam into hundreds is proposed. The holographic optical element is fabricated with hexagonal packed lattice structure using 4-beam interference ...
    • One-pot synthesis of water soluble, extremely small-sized super paramagnetic magnetite nanoparticles 

      Shen, Li-hua; Shang, Ting; Zhou, Jun; Wang, Dong; Han, Yu; Ren, Lei; 王冬; 任磊 (Trans Tech Publications, 2012)
      Extremely small-sized superparamagnetic magnetite nanoparticles of 3Cit). The resulting Cit-coated magnetite nanoparticles exhibited long-term colloidal stability in aqueous media without any surface modification. Regarding ...
    • One-way property proof in public key cryptography based on OHNN 

      Li Guo-Gang; Guo Dong-Hui; 郭东辉 (PROCEDIA ENGINEER, 2011)
      The public key cryptography based on an Overstoraged Hopfield Neural Network (OHNN) is a combination of Diffie-Hellman public key cryptosystem and probabilistic symmetric-key encryption scheme with chaotic-classified ...
    • Optical matching system for eliminating lateral position displacement of holographic images under varying laser wavelength 

      Liu, Shou; Zhang, Xiangsu; Ren, Xuechang; 张向苏; 任雪畅; 刘守 (Institute of Physics Publishing, 2013)
      The diffraction angle of a hologram is proportional to the wavelength so that a lateral displacement of the holographic image will occur when there is a change in wavelength. Such displacement is more serious when the image ...
    • Optical Tweezers Array System Based on 2D Photonic Crystals 

      Ren, Xuechang; Wang, Canhui; Li, Yanshuang; Shen, Shaoxin; Liu, Shou; 任雪畅 (PHYSCS PROC, 2011)
      A simple optical interference method for creating multiple optical tweezers from a single laser beam, using two dimentional photonic crystals (PhCs) as a diffractive beam splitter, was described. To obtained clear periodic ...