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research on the reconstruction method of porous media using multiple-point geostatistics

Science china(Physics,Mechanics & Astronomy) 2010年第9期53卷 122-134页

作者： ZHANG Ting 1,2.3, LI DaoLun 1,2., LU DeTang 1,2.& YANG JiaQing 1,2.1 Department of Modern Mechanics, University of Science and Technology of china, Hefei 2.002., china 2.{2. Center of Oil and Natural Gas, University of Science and Technology of china, Hefei 2.002., china 3 the 2.th research institute, china electronics Technology group corporation, nanjing, 2.0007, china Department of Modern Mechanics University of Science and Technology of China Hefei China research Center of Oil and Natural Gas University of Science and Technology of China Hefei China the 2.th {2. institute China Electronics Technology Group Corporation Nanjing China

the pore structural characteristics have been the key to the studies on the mechanisms of fluids flow in porous media. With the development of experimental technology, the modern high-resolution equipments are capable of capturing pore structure images with a resolution of microns. But so far only 3D volume data of millimeter-scale rock samples can be obtained losslessly. It is necessary to explore the way of virtually reconstructing larger volume digital samples of porous media with the representative structural characteristics of the pore space. this paper proposes a reconstruction method of porous media using the structural characteristics captured by the data templates of multiple-point geostatistics. In this method, the probability of each structural characteristic of a pore space is acquired first, and then these characteristics are reproduced according to the probabilities to present the real structural characteristics in the reconstructed images. Our experimental results have shown that: (i) the deviation of LBM computed permeability respectively on the virtually reconstructed sandstone and the original sample is less than 1.2.; (ii) the reconstructed sandstone and the original sample have similar structural characteristics demonstrated by the variogram curves.

关键词： porous media reconstruction multiple-point geostatistics pore space training image variogram data template

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A distributed estimator for on-road target tracking with lane estimation and identification

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Science china(Information Sciences) 2010年第12期53卷 2495-2505页

作者： CHEN YangSheng the thirty-Eighth research institute,china electronics Technology group corporation,199 Xiangzhang Blvd,Hefei 2.0088,china the thirty-Eighth research institute China Electronics Technology Group Corporation Hefei China

For ground target tracking with road constraints,the existing methods ignore the road width,which can lead to significant biases of the target state estimates when the road width is *** this paper,based on the proposed novel two-dimensional(2.) road representation which additionally allows to model target lateral motion,a distributed estimator(DE) with lane estimation and identification is *** estimator uses radar and image sensor based local estimates to provide a global estimate of the target displacement from the road *** local estimators,the updated lane estimations are used for *** representative simulation results show that the proposed estimator achieves much better estimation performance than the mileage estimator(ME),and the lane identifier can effectively identify the lane which the target is in.

关键词： on-road target tracking road representation lateral motion interact multi-model(IMM) algo-rithm fusion lane identification

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research on Alloying Design and Process Control for X100 Hot-Rolled Strips

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Journal of Iron and Steel research International 2011年第S1期18卷 675-680页

作者： JIA Shu-jun 1,LIU Qing-you 1,PENG Ling-li 1,QU Peng 2.(1.china Iron and Steel research {2. group,Beijing 100081,china 2.Benxi Steel group corporation,Benxi 100083,Liaoning,china) china Iron & Steel Res Inst Grp Beijing 100081 Peoples R China Benxi Steel Grp Corp Benxi 100083 Liaoning Peoples R China

the influence of alloying design,controlled rolling technology and cooling system of X100 hot-rolled strips on microstructure and micro-hardness has been discussed in detail in this *** results show that optimal chemical composition range of X100 hot-rolled strips is obtained on the basis of X80 by increasing contents of C,Mn,Ni and Mo of *** granular bainite microstructure could be refined and the volume fraction and size of M-A islands could be controlled in a reasonable range by reasonably regulating cooling rate and coiling temperature of X100 pipeline steel,which ensure high strength and toughness of X100 pipeline steel.

关键词： alloying design deformation cooling rate final cooling temperature granular bainite

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Ti Coating on Magnesium Alloy by Arc-Added Glow Discharge Plasma Penetrating Technique

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材料热处理学报 2004年第5B期25卷 684-687页

作者： CUICai-e MIAOQiang PANJun-de ZHANGPing-ze ZHANGGao-hui researchinstituteofSurfaceEngineering TaiyuanUniversityofTechnologyTaiyuan030024China researchinstituteofSurfaceEngineering TaiyuanUniversityofTechnologyTaiyuan030024China／／No.2ResearchInstituteofChinaElectronicsTechnologyGroupCorporationTaiyuan030024China

Arc-added glow discharge plasma penetrating technique is a new surface coating method. With the help of vacuum arc discharge, a cold cathode arc source continually emits ion beams of coating elements with high currency density and high ionizing ratio. As the ion bombard and diffusion working on, the surface of the parts form deposited layer, penetrated layer and hybrid layer. Under lab condition, a commercial magnesium alloy Az91 had been coated with Ti film layer with the aim of improving its’ anti-corrosion performance. this paper mainly summarized our studies on the testing and analyzing of the coating layer. the composition and microstructure of the coating layer had been analyzed by means of X-ray diffraction (XRD) and glow discharge spectrum (GDS), and the surface appearance had been surveyed by scanning electronic microscope (SEM). the adhesion strength between film and matrix had been evaluated by experiments of sticking-tearing. the results indicated that the coated layer on magnesium alloy were homogeneous, dense and robustly adhered.

关键词：钛涂层镁合金电弧辉光放电等离子穿透粘附强度

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Experimental Study of A Novel Piezoelectric Tumor Marker Micro-array Immunosensor

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稀有金属材料与工程 2006年第S3期 405-408页

作者： Bo Zhang~1 Weiling Fu~1 Xue Zhang~1 Qinghai Chen~1 Shijun Xu~2.Daihua Tang~3 (1.Department of Laboratory,Southwest Hospital,third Military Medical University,Chongqing 400038,{2.) (2.Department of Bioengineering,{2. Jialing group,Chongqing 400032.{2.) (3.the 2.th research institute of electronics,Ministry of Information Industry,Chongqing 400060,{2.)

A novel 2.5 model of insert-plug piezoelectric quartz crystal tumor marker micro-array immunosensor constructed with screw clamp apparatus has been developed for quantitative detection of the tumor markers such as alpha-fetoprotein (AFP),carcino-embryonic antigen (CEA),prostate specific antigen (PSA),and human chorionic gonadotropin (hCG) in serum,in which every crystal unit can oscillate independently with the stability of±1 hertz (Hz) in air and±2.Hz in *** response characteristics of Pz tumor marker micro-array immunosensor such as temperature, time-cost,reproducibility and specificity etc were also *** detection ranges for AFP,CEA,PSA,and hCG obtained by Pz micro-array immunosensor were 2. ng/ml～640 ng/ml,1.56 ng/ml～50 ng/ml,1.2. ng/ml～50 ng/ml,and 2.5 mIU/ml～2.0 mlU/mi respectively with the coefficient of variance (CV) less than 5%.No cross-reactivates with other tumor markers in serum were *** results of AFP,CEA,PSA,and hCG obtained by this method from 68 serum samples were in good agreement with those given by chemiluminescence immunoassay with the correlation coefficients of 0.92.0.90,0.91,and 0.94 *** Pz immunosensor regenerated by urea solution could be reused for five times without appreciable loss of response ***,the proposed insert-plug immunosensor provides a rapid, sensitive,specific,reusable,convenient and reliable alternative for the detection of tumor markers in clinical laboratory.

关键词： piezoelectric immunosensor micro-array tumor maker

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Some thoughts and Suggestions About B3G

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ZTE Communications 2004年第2期2卷 5-8,13页

作者： Li Jinliang (No,7 electronics research {2. of china electronics Technology group corporation,G uangzhou 510310,china)

the paper thinks that china should begin studying B3G as early as possible,participate in the establishment of international standards and draft its own set of standards *** briefs the four development trends of contemporary infocommunications based on four related laws and the development of mobile *** discusses the development goal of B3G in china and points out that among the B3G related technologies,the effective spectrum and coverage technologies as well as pure IP architecture should be studied in strength.

关键词： SDMA Some thoughts and Suggestions About B3G MIMO OFDM ICT

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基于SOI技术的单层多晶EEPROM和SONOS EEPROM抗总剂量辐照特性研究

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物理学报 2011年第2期60卷 762-767页

作者：肖志强李蕾蕾张波徐静陈正才电子科技大学电子薄膜与集成器件国家重点实验室中国电子科技集团公司第五十八研究所西安电子科技大学微电子学院

在自行研发的0.8μm SOI工艺平台上开发了基于SOI技术的单层多晶硅EEPROM(electrically erasable programmable read only memory)和SONOS(silicon-oxide-nitride-oxide-silicon)EEPROM,并进行了抗总剂量辐照实验研究,分析了各种EEPROM结构在抗总剂量辐照下的失效机理.结果表明基于SOI技术的SONOS EEPROM具有良好的抗总剂量辐照性能,为抗辐照EEPROM电路中的存储单元结构选取提供了依据.

关键词： EEPROM SOISONOS 辐照浮栅

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An improved algorithm for improving the accuracy of TCXO temperature compensation net

An improved algorithm for improving the accuracy of TCXO tem...

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2.11年全国压电和声波理论及器件应用研讨会

作者： Min SUN the 13~(th) {2. institute,china electronics Technology group corporation,Shijiazhuang 050051

＜正＞the optimization of temperature compensation net is important in TCXO *** article introduce a improved algorithm used in temperature compensation net of *** model is established using nonlinear least square theo... 详细信息

关键词： Levenberg-Marquardt Algorithm Optimization SSE

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Study of the Microstructure and Properties of ER70S-6 Wire Rods

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Journal of Iron and Steel research International 2011年第S1期18卷 929-932页

作者： HUANG Zhi-jun,WANG Yu-tao,XIONG Yan (Products research institute,R and D Center of Wuhan Iron and Steel ({2.) corporation,Wuhan 430080,Hubei,china) Wuhan Iron & Steel Grp Corp R&D Ctr Prod Res Inst Wuhan 430080 Hubei Peoples R China

After rolling even after drawing,a fraction of martensite may occur in the microstructure of ER70S-6 wire deteriorating the ductility and drawing *** mid-products of drawing for test were heat treated at 350℃ and 500℃,deformed ferrite plus pearlite plus some unchanged martensite and deformed ferrite plus pearlite plus troostite were obtained *** bending test was carried out on both as-drawn and heat-treated *** results showed that the brittleness of the as-drawn rods is not due to defects but due to the presence of martensite in *** sample heat-treated at 500℃ and cooled in oven has the best ductility.

关键词： ER70S-6 microstructure heat treatment ductility

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the Development of Advanced HSLA Steel in Angang in Low Carbon Age

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Journal of Iron and Steel research International 2011年第S1期18卷 22-28页

作者： ZHANG Xiao-gang (Anshan Iron and Steel group corporation,Anshan 114001,Liaoning,{2.) Anshan Iron & Steel Grp Corp Anshan 114001 Liaoning Peoples R China

the structure steel industry has experienced a revolution during four *** the challenge of global change in climate and environments,the higher strength,higher ductility steels,environment friendly steel were *** R and D for high strength steel production and application in Angang has made impressive *** more attention had been paid on the development of new type high strength steels with higher strength and better *** multi-phase microstructure,lower y/s,and corrosion resistance performance structure steel results in new generation advanced high strength steel which have properties that are often much superior to those exhibited by the old *** paper presents a general review of new generation high strength steel research and development in Angang and predicts the development for advanced high strength steel in the foreseeable future.

关键词： high strength steel energy conservation emission reduction

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