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A Fair E-Cash Payment Scheme Based on Credit

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Wuhan University Journal of Natural Sciences 2006年第1期11卷 155-159页

作者： WANG Shao-bin HONG Fan CUI Guo-hua College of Computer Science and Technology Huazhong University of Science and TechnologyWuhan 430074 Hubei China

A new fair e-eash payment scheme based on credit is present in this paper. In the scheme, an overdraft credit certificate is issued to user by hank. Using the overdraft credit certificate, user can produce e-cash himself to pay in exchanges. Merchant can verify the e-cash received from user. Bank can make a fair dis pute resolution when there is a dissension between user and merchant. It can avoid ＇the problem of partition e-cash for changes, prevent from reusing e-cash and fa- king e-cash, It. fits justice, anonymity, non deny and impartiality.

关键词： overdraft credit off-line payment e-cash impartiality justice

Space-Resolved Spectrum Diagnose by Soft X-Ray Transmission Grating Spectrometer

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Plasma Science and Technology 2011年第1期13卷 36-39页

作者：尚万里赵阳熊刚杨家敏朱托 Research Center of Laser Fusion China Academy of Engineering Physics

A space-resolving transmission grating spectrometer is established on the ＂Shenguang-III＂ prototype laser facility and an iterative procedure for unfolding the X-ray spectrum with spatial resolution is described. The diagnostics is applied to measure the X-ray spectrum from laser-entered gold target and the typical space-resolved spectrum is provided. The relative standard uncertainty of the X-ray spectrum from the laser-generated plasma is also determined.

关键词： transmission grating spectrometer numerical simulation spectrum diagnose

RHEOLOGICAL BEHAVIOR OF POLYPHENYLENE SULFIDE/POLYAMIDE-66 BLENDS

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Chinese Journal of Polymer Science 1996年第3期14卷 225-232页

作者：侯灿淑李继红汪映寒陈永荣汪令 Institute of Materials Science and Technology Sichuan University Chengdu 610064

Blends of polyphenylene sulfide (PPS) containing trace amounts of branching and/or cross-linking in chain and Polyamide-66 (PA-66) have been prepared by melt blending. The rheological behavior of PPS/PA-66 blends has been studied by means of capillary rheometer, and compared with PPS. The effects of shear rate, shear stress and temperature on the how of PPS/PA-66 blends and PPS are discussed. The non-Newtonian indexes and the activation energies of viscous how are obtained. The results show that the apparent viscosity of PPS/PA-66 blends is not sensitive to shear rate and stress, but decreases with the elevation of temperature. On the contrary, the apparent viscosity of the PPS decreases obviously with the increasing of shear rate and shear stress, but it is increased by the elevation of temperature.

关键词： polyphenylene sulfide polyamide-66 polyphenylene sulfide polyamide-66 blends rheological behavior rheometer

Software-Defined Cluster

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Journal of Computer Science & Technology 2015年第2期30卷 252-258页

作者：聂华杨晓君刘淘英 School of Computer and Communication Engineering University of Science and Technology Beijing Beijing 100083 China Dawning Information Industry Co. Ltd Beijing 100193 China Institute of Computing Technology Chinese Academy of Sciences Beijing 100190 China

The cluster architecture has played an important role in high-end computing for the past 20 years. With the advent of Internet services, big data, and cloud computing, traditional clusters face three challenges： 1） providing flexible system balance among computing, memory, and I/O capabilities; 2） reducing resource pooling overheads; and 3） addressing low performance-power efficiency. This position paper proposes a software-defined cluster （SDC） architecture to deal with these challenges. The SDC architecture inherits two features of traditional cluster： its architecture is multicomputer and it has loosely-coupled interconnect. SDC provides two new mechanisms： global I/O space （GIO） and hardware-supported native access （HNA） to remote devices. Application software can define a virtual cluster best suited to its needs from resources pools provided by a physical cluster, and traditional cluster ecosystems need no modification. We also discuss a prototype design and implementation of a 32-processor cloud server utilizing the SDC architecture.

关键词： software-defined cluster global I/O space hardware-supported native access

A New Method for Interpreting the Effective Radius of Curvature: Two-Dimensional Case

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Chinese Physics Letters 1997年第6期14卷 421-423页

作者： CAO Qing DENG Xi-ming national Laboratory on high Power Laser and Physics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800

Starting from the vector field theory,the expression of the time average energy flow densityof a paraxial scalar light beam is *** terms of this expression,the x(or y)directional weighted deviation is reasonably defined between the real-beam wavefrontand an imaginary ellipsoidal wavefront which is used to replace the real-beam *** is proved that,when Rx and Ry are just the x and y directional effective radii of curvature,respectively,the ellipsoidal wavefront Le=x^(2)/(2Rx)+y^(2)/(2 Ry)is the best-fit one for the real-beam wavefront ***,the above results are generalized for a general polychrornatic light beams.

关键词： beam directional imaginary

Synthesis and Surface Modification of CdTe Nanocrystals

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Chemical Research in Chinese Universities 2007年第1期23卷 5-7页

作者： ZHUANG Hong LIU Jing-bo ZHANG Chun-ling KONG Xiang-gui College of Light industry and Economics ＆ Management Jilin University Changchun 130062 P. R. China Physics Key Laboratory of Excited State Process Changchun Institute of Optics Fine Mechanics and Chinese Academy of Sciences Changchun 130033 P. R. China College of Materials Science and Engineering Jilin University Changchun 130012 P. R. China Received Apr. 12 2006

CdTe nanocrystals were prepared in aqueous solution via the reaction between Cd^2＋ and NaHTe in the presence of mercaptoacetic acid. Interactions between CdTe nanocrystals and phenylalanine were formed via electrostatic/coordinate self-assembly. The photoluminescence intensity of CdTe nanocrystals was improved obviously. The interaction mechanism was discussed and was considered to be surface passivation.

关键词： CdTe Phenylalanine Electrostatic function Photoluminescence

A New Color Constancy Model for Machine Vision

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Journal of Computer Science & Technology 2001年第6期16卷 567-573页

作者：陶霖密徐光祐 InformationLaboratory DepartmentofComputerScienceandTechnologyTsinghuaUniversityBeijing100084P.R.China InformationLaboratory DepartmentofComputerScienceandTechnologyTsinghuaUnivers

Both physiological and psychological evidences suggest that the human visual system analyze images in neural subsystems tuned to different attributes of the stiamlus. Color module and lightness module are such subsystems. Under this general result, a new physical model of trichromatic system has been developed to deal with the color constancy of computer vision. A normal color image is split into two images: the gray scale image and the equal lightness color image for the two modules. Relatively a two-dimensional descriptor is applied to describe the property of surface reflectance in the equal lightness color image. This descrip- tion of surface spectral reflectance has the property of color constancy Image segmentation experiments based on color property of object show that the presented model is effective.

关键词： color constancy lightness normalization color vision computer vision

DNA immunization with fusion genes containing HCV core region and HBV core region

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Science china(Life Sciences) 1999年第2期42卷 171-177页

作者：杨莉刘晶孔玉英汪垣李光地 Shanghai Institute of Biochemistry Chinese Academy of Sciences Shanghai China

The eucaryotic expression plasmids were constructed to express the complete (HCcl91) or the truncated (HCc69 and HCc40) HCV core genes, solely or fused with the HBV core gene (HBcl44). These constructions were transiently expressed in COS cells under the control of the CMV promoter. The antigenicity of HBc and HCc could be detected in the expression products by ELISA and Western blot. The mice immunized with these expression plasmids efficiently produced the anti-HCc antibodies, and also anti-HBc antibodies when the plasmids contained the fusion genes. In addition, the antibodies induced by the fusion genes were more persistent than those induced by the non-fusion HCV core genes. These indicate that the fusion of HCc genes to HBc gene is in favor of the immunogenicity of HCc, while the immunogenicity of HBc is not affected.

关键词： hepatitis C virus core protein hepatitis B core antigen gene fusion DNA immunization.

BCL-3: A high Performance Basic Communication Protocol for Commodity Superserver DAWNING-3000

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Journal of Computer Science & Technology 2001年第6期16卷 522-530页

作者：马捷贺劲孟丹李国杰 Institute of Computing Technology The Chinese Academy of Sciences Beijing P.R. China

This paper introduces the design and implementation of BCL-3, a high per- formance low-level communication software running on a cluster of SMPs (CLUMPS) called DAWNING-3000. BCL-3 provides flexible and sufficient functionality to fulfill the commu- nication requirements of fundamental system software developed for DAWNING-3000 while guaranteeing security, scalability, and reliability. Important features of BCL-3 are presented in the paper, including special support for SMP and heterogeneous network environment, semi- user-level communication, reliable and ordered data transfer and scalable flow control. The performance evaluation of BCL-3 over Myrinet is also given.

关键词： cluster communication system user-level communication scalable flow con- trol CLUMPS