FDTD Analysis of Dispersion Characteristics of 2D Dielectric Photonic Crystal Described by Effective Permittivity in Grid--《Journal of Shanghai Jiaotong University》2004年S1期
FDTD Analysis of Dispersion Characteristics of 2D Dielectric Photonic Crystal Described by Effective Permittivity in Grid
BAO Xiu-long~1,LI Zheng-fan~1,SUN Xiao-wei~2(1.Dept. of Electronic Eng., Shanghai Jiaotong Univ., Shanghai 200030, C2.Inst. of Microsystem and Information Technique, Chinese Academy of Science, Shanghai 200050)
According to the analogy concept of series-parallel connection of the capacitance, the approximate formulae of effective permittivity along x,y,z direction for various inhomogeneous unit grids are deduced. Under the condition of numerical stability, these formulae are combined with the finite difference time domain (FDTD) scheme of arbitrary spatial grids to calculate the dispersion characteristics of 2D dielectric photonic crystal. This method can save several times computing time and memory compared with the conventional FDTD method. These effective permittivity formulae can also be employed in other electromagnetic problems to improve the computation efficiency.
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jiang (The Philosophy Department, Wuhan University, Wuhan 430072, China);[J];Journal of Guangxi Normal University(Philosophy and Social Science Edition);2004-03
LI En-lai(College of Politics & Administration,Guangxi Normal University,Guilin 541004,China);[J];Journal of Guangxi Normal University(Philosophy and Social Sciences Edition);2007-03
JIANG Wen-ning (Guangxi Normal University,Guilin 541004,China);[J];Journal of Guangxi Normal University(Philosophy and Social Sciences Edition);2008-03
HONG Fang LI Guo-qing(1.College of Life Sciences,Nanjing Normal University,Nanjing .Anyang Normal College,Anyang 455000,China);[J];Journal of Guangxi Normal University(Philosophy and Social Sciences Edition);2008-05
XU Xue-ying(College of Education Science,Guangxi Normal University,Guilin 541004,China);[J];Journal of Guangxi Normal University(Philosophy and Social Sciences Edition);2008-06
HE Ke-[J];Journal of Guangxi University For Nationlities(Philosophy and Social Science Edition);2004-04
DONG Ying-chun (College of Chinese Language and Literature, Guangxi
University for Nationalities, Nanning 530006, China);[J];Journal of Guangxi University For Nationlities(Philosophy and Social Science Edition);2005-01
HU Qin-bao(Department of Letters,Broadcasting & TV University of Guangzhou,Guangdong 510260,China);[J];Journal of Guangzhou University(Social Science Edition);2006-05
WANG Jin(School of Humanities and Social Sciences,Guangzhou University,Guangzhou,Guangdong 510006,China);[J];Journal of Guangzhou University(Social Science Edition);2006-09
Jiang Cheng-cheng
(Graduate of 2003 at Department of Education, East China Normal University, Shanghai, 200062);[J];Journal of Guizhou Educational C2005-01
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(C)2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reservedExperimental study of the reconstruction combined BMSCs with β-TCP--《China Journal of Oral and Maxillofacial Surgery》2005年04期
Experimental study of the reconstruction combined BMSCs with β-TCP
in vitro HE Yue, ZHANG Zhi-yuan, JIANG Xin-quan, ZHANG Xiu-li, GUO Wei. (Department of Oral and Maxillofacial Surgery, School of S Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University. Shanghai 200011, China)
PURPOSE: To study the possibility and the biological capability of the reconstruction of the combined tissues using dog's bone marrow stromal cells (BMSCs) with β-tricalcium phosphate (β-TCP) in vitro. METHODS: Under general anesthesia, 3ml bone marrow was aspirated and cultured in DMEM under standard cell culture conditions. The 3th generation cells were collected for combination with 3mm3 β-TCP scaffold and also cultured in conditions of DMEM solution for 5-7 days. The scanning electron microscopy (SEM) was observation at 4th hour,2th day and 5th day. RESULTS: SEM showed the multi-porus scaffold had 2 morphologically distinct pore types with the main pore in the diameter of 450μm and interconnected pore in the diameter of 100μm. Cells adhered to the surface of the scaffold 4 hours later,and became a subconfluent layer on the scaffold surface at the 5th day secreting extracellous matrix. CONCLUSIONS: The porus scaffold β-TCP had good 3-D structure and biocompatibility, which provided safe surface for BMSCs to adhere and proliferate. Supported by Shanghai Leading Academic Discipline Project (Y0203), National 863 Project () and National Natural Science Foundation of China (Grant No.).
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WANG Shao-yi, JIANG Xin-quan, ZHANG Zhi-yuan. (Dept. of Oral and Maxillofacial Surgery, College of Stomatology, Ninth People′s Hospital, School ofMedicine, Shanghai Jiao Tong University, Shanghai 200011, China);[J];International Journal of S2008-04
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ZHENG Qian
cheng,LI Yu
bao,WEI Jie.
*Department of Oral Maxillofacial Surgery,West China School
of Stomatology,Sichuan University, Chengdu
610041, C[J];Chinese Journal of S2004-01
FU Song-jun *,WANG Yu-xin,CHEN Fu-lin ,TAO Kai,ZHANG Xiao-dong,GE Cheng. *Department of Stomatology, General Hospital of Shenyang , Shenyang 110016,C[J];Chinese Journal of S2005-04
*, WENG Yu-lai, HU Xiao-jie, ZHANG Yan, CHAI Gang, ZHU Lian, LIU Wei, CUI Lei, FENG Xi-ping, CAO Yi-lin.
*Department of Plastic Surgery of the 9th Hospital, Shanghai Second Medical University. Shanghai Tissue Engineering Research Center, Shanghai 200011, China Corresponding author: CAO Yi-[J];National Medical Journal of C2003-15
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(C)2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reservedStudy on preparation,performance and application of BIO-ceramic powder--《Journal of Shaoguan University》2010年12期
Study on preparation,performance and application of BIO-ceramic powder
ZHENG Liu-ping1,YAN Gui-yang1,WENG Xiu-lan1,CHEN Wen2(1.College of Chemistry and Materials Science,Fujian Normal University,Fuzhou,350007,Fujian,C 2.Qi-Feng Ceramics Limited Company of Dehua,Quanzhou,362500,Fujian,China)
Used spodumene and kaolin as raw materials,add beryl and manganese salt as mixed additives,introduced of a certain proportion of zirconium silicate and titanium dioxides as improver,manufactured a BIO ecological ceramic powder,and tried to apply it in the ceramic water-pot that could be used over induction cooker.Used the methods of XRD and TG-DTG analyzed the physical and chemical properties of the glaze composition.The capabilities of the product,such as the energy-saving insulation and water quality improvement,have also been detailed testing and characterization by the modern analysis instrument.The results showed that the product has strong far-infrared radiation performance.It has a superiority property in terms of water quality improvement and energy-saving.
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Qi Hongfei
Liang Jinsheng
Liang Guangchuan
Feng Yanwen
(Insititute of Power Source and Ecomaterials Science,Hebei University of Technology,Tianjin:300130);[J];China Ceramic I2003-05
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ZHANG Zhiqiang,WANG Yuping(Southwest University of Science and Technology,Mianyang 621010,China);[J];Sichuan Building S2008-03
WEN Chuan-geng , WANG Kai-ming, LI Xiao-qi, GAO Shou-shan , HUAN Wei-liang, ZHAO Ying
( Research Centre of Nanoparticles, Anshan University oi Science and Technology, Anshan 114044, China);[J];Journal of Anshan University of Science and T2003-03
QIN Xiu-juan1,SHAO Guang-jie1,LIU Ri-ping1,WANG Wen-kui1,2(1.Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao .Institute of Physics,Chinese Academy of Sciences,Beijing 100080,China);[J];Ordnance Material Science and E2006-01
sheng,ZHU Hai
(Qingdao University of Science and Technology, Qingdao 266042);[J];Shandong C2004-03
LIU Zhongxin
1,DONG Xiangting
1,JIA Xinhai
1,YAN Jinghui
1WANG Jinxian
1,FENG Xiuli
1,HONG Guangyan
College of Materials and Chemical Engineering,Changchun University ofScience and Technology , Changchun
Changchun Institute of Applied Chemistry, Academia Sinica, Changchu n 130022);[J];Journal of Changchun Institute of Optics and Fine M2003-04
LI Chun-fu, WANG Rong, LIU Da-hong, SONG Kai-hong, LANG Li-xin, LUO Ping-ya
(1. Southwest Petroleum I 2. Tsinghua U 3. Tianjin Damo Oil Advanced Material Co. Ltd,China);[J];Materials P2003-05
XING Peng-fei,ZHANG Xue-feng,WANG Zheng-hong,PENG Hui(Luoyang Ship Material Research Institute,Luoyang 471039,China);[J];Development and Application of M2008-04
LI Xia-zhang1,CHEN Yang2,CHEN Zhi-gang2,CHEN Jian-qing3(1.College of Materials Science and Engineering,Jiangsu University,Zhenjiang .Jiangsu Polytechnic University,Changzhou .Hehai University,Nanjing 210098,China);[J];Electronic Components and M2006-03
ZHANG Xiao,ZHU Yan(School of Environmental & Chemical Engineering,Xi′an Polytechnic University,Xi′an 710048,China);[J];Basic Sciences Journal of Textile U2008-02
Liu Honghua(College of Materials Science and Engineering,Liaocheng University Liaocheng Shandong 252000);[J];;2005-09
China Proceedings of conference Full-text Database
JIA Hu-sheng, ZHANG Xiao-yun, YAN Cui-fen, YANG Xiao-min (College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China);[A];[C];2005
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(C)2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reservedFollow-up study on flash visual evoked potentials in the infants from 6 to 24 months--《Chinese Journal of Child Health Care》2010年02期
Follow-up study on flash visual evoked potentials in the infants from 6 to 24 months
FENG Jing-jing,WANG Ting-xue,WANG Wei-ping,XU Xiu.(Children's Hospital of Fudan University,Shanghai 201102,China)
[Objective] Investigate normative data of normal full-term infants from the first 6 to 24 months by flash visual evoked potentials (FVEPs) in order to explore the evolution of the visual electrophysiology,and to assess the application of FVEPs in evaluating the visual capability of an infant [Methods] According to the parents' consent,we enrolled normal full-term infants below 6 months from Maternal
Children's Health Care Hospital of Luwan District in Shanghai. The parents of all the eligible subjects were invited by telephone to the Child Health Care Department of the Children's Hospital for an examination of their child. FVEPs were recorded in infants longitudinally at 6,12,18 and 24 months by visual electrophysiological testing device(Chongqing Kanghua Company. Chongqing). [Results] 28 normal full-term infants below 6 months were enrolled. We recorded the responses in all infants. The most characteristic response was a triphasic waveform with clear negative-positive-negative (N2-P2-N3) components. The latency of the N2,P2 and N3 showed a significant decrease as a function of age during the first 2 years,but their amplitude had no difference. The P2 latency had a negative correlation with age (r=-0.52;P0.01). [Conclusions] The relative stability of P2 wave of FVEPs maybe the most useful component to be used in pediatrics clinical work. During the visual capability assessment,the age of the infant should be considered.
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WANG Ting-xue,YANG Chen-hao,CAO Ll-juan,XU Xiu.(Children's Hospital of Fudan University,Shanghai 200032,China);[J];Chinese Journal of Child Health C2008-01
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(C)2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reservedPreparation and characteristics of Cu/AAO composite--《Journal of Functional Materials》2010年02期
Preparation and characteristics of Cu/AAO composite
ZOU Xiao,LI Xiao-ning,YANG Xiu-chun,ZHAO Ying,LU Wei,LIU Yan(School of Material Science and Engineering,Tongji Univesity,Shanghai 200092,China)
Ordered porous anodic aluminum oxide(AAO) template with an ultrathin barrier and an Al substrate was successfully prepared by a method of step-by-step voltage decrement.Cu/AAO composite was prepared by electrodepositing Cu in the above-prepared AAO template by a cyclic voltammetry method.The morphology,composite and structure of Cu/AAO composite were characterized by field emission scanning electron microscopy(FESEM),transmission electron microscopy(TEM) and X-ray diffraction(XRD).The results indicate that the Cu nanowires have a face centred cubic single crystalline structure,the filling degree of Cu nanowires in the AAO template is high and the diameter of the nanowire is about 70nm with a length up to 30μm.
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(C)2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved