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WEB SERVICES COMPOSING BY MULTIAGENT NEGOTIATION

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Journal of Systems Science & Complexity 2008年第4期21卷 597-608页

作者： jian TANG Liwei zheng Zhi JIN Institute of Mathematics Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing 100190 China Graduate School of the Chinese Academy of Sciences Beijing 100049 China. Institute of Mathematics Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing 100190 China Institute of Computing Technology Beijing 100190 China.

Composing web services is gained daily attention in Service Oriented Computing. It includes the dynamic discovery, interaction and coordination of agent-based semantic web services. The authors first follow Function Ontology and Automated Mechanism Design for service agents aggregating. Then the problem is formulated but it is ineffective to solve it from the traditional global view. Because the complexity is NP-complete and it is dii^cult or even impossible to get some personal information. This paper provides a multi-agent negotiation idea in which each participant negotiates under the condition of its reservation payoff being satisfied. Numerical experiment is given and well evaluates the negotiation.

关键词： Feasible coalition multi-agent systems negotiation web services composing.

Geometric Phase in Path Integral and Quantisation Rule

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Chinese Physics Letters 1999年第4期16卷 241-243页

作者： WANG zheng-chuan LI Bo-zang Institute of Physics and Center for Condensed Matter Physics Chinese Academy of SciencesBeijing 100080

A description of geometric phase in terms of path integral formalism is *** is proved that this adiabatic phase can appear in the propagator or Green function of an adiabatic *** the semiclassical approximation,following the Green function expression of the electronic density of states,the corresponding generalized Bohr-Sommerfeld quantisation rule can thus be *** is shown that this rule has been corrected by the geometric phase.

关键词： phase. adiabatic geometric

High-voltage frequency domain spectroscopy analysis of a thermally aged XLPE submarine cable under continuous and cyclic voltage based on carrier transport and polarisation characteristics

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High Voltage 2022年第3期7卷 473-482页

作者： Xize Dai jian Hao zheng jian Ruijin Liao Xinlong zheng Yiyi Zhang State Key Laboratory of Power Transmission Equipment&System Security and New Technology Chongqing UniversityChongqingChina State Grid Zhejiang Electric Power Supply Company ZhoushanChina School of Electrical Engineering Guangxi UniversityNanningChina

In order to ensure the safe operation of submarine cables,it is of great significance to analyse the insulation state of submarine cables from the perspectives of microstructure,carrier transport characteristics and macroscopic dielectric *** this study,based on the high-voltage frequency domain spectroscopy(HV-FDS)measurement system,HV-FDS experiments of fresh and thermally aged submarine cables were carried out under continuous(0.5,2,4 and 10 kV)and cyclic(2-10-2 kV)applied alternating ***,combining the changes of the microstructure structure of cross-linked poly-ethylene(XLPE)insulation,the aggregate structure deterioration model of XLPE was proposed to discuss the physical mechanism of HV-FDS characteristics of submarine cables under different voltages and insulation *** show that the HV-FDS characteristics of submarine cables have significant voltage dependence under contin-uous voltage *** HV-FDS of submarine cables show memory characteristics under cyclic voltage *** with the fresh submarine cable,the thermally aged submarine cable shows more significant voltage dependence and memory charac-teristics of *** memory characteristics of HV-FDS are mainly determined by the carriers transport and the interfacial polarisation caused by the accumulation of polar particles at the electrode/dielectric *** study covers the correlation mecha-nism among the microstructure,carrier transport and macroscopic HV-FDS properties of submarine cable insulation,which lays a foundation for further research and condition evaluation of submarine cables.

关键词： submarine characteristics transport

Raman scattering in In/InOx core-shell structured nanoparticles

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Chinese Physics B 2014年第8期23卷 117-120页

作者： Wang Meng Tian Ye Zhang jian-Ming Guo chuan-Fei Zhang Xin-zheng Liu Qian The MOE Key Laboratory of Weak-Light Nonlinear Photonics TEDA Applied Physics School and School of Physics Nankai University Tianjin 300457 China National Center for Nanoscience and Technology Belting 100190 China University of the Chinese Academy of Sciences Beijing 100190 China Department of Physics and TcSUH University of Houston Houston TX 77204 USA

The properties of Raman phonons are very important due to the fact that they can availably reflect some important physical information. An abnormal Raman peak is observed at about 558 cm-1 in In film composed of In/InOx core-shell structured nanoparticles, and the phonon mode stays very stable when the temperature changes. Our results indicate that this Raman scattering is attributed to the existence of incomplete indium oxide in the oxide shell.

关键词： Raman scattering core-shell structure indium nanoparticles

SERS nanoprobes for bio-application

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Frontiers of Chemical Science and Engineering 2015年第4期9卷 428-441页

作者： Han-Wen Cheng Jin Luo chuan-jian Zhong School of Chemical and Environmental Engineering Shanghai Institute of Technology Shanghai 201418 China Department of Chemistry State University of New York at Binghamton Binghamton NY 13902 USA

The ability to tune the size, shape, composition and surface properties impart nanoparticles with the desired functions for bio-application. This article highlights some of the recent examples in the exploration of metal （e.g., gold and silver） nanoparticles, especially those with magnetic properties and bio-conjugated structures, as theranostic nanoprobes. Such nanoprobes exhibit tunable optical, spectroscopic, magnetic, and electrical properties for signal amplifications. Examples discussed in this article will focus on the nanoproble-enhanced colorimetric detection and surface enhanced Raman scattering （SERS） detection of biomarkers or biomolecules such as proteins and DNAs. The understanding of factors controlling the biomolecular interactions is essential for the design of SERS nanoprobes with theranostic functions.

关键词： functional nanoprobes metal nanoparticles,surface-enhanced Raman scattering bio-conjugation mag-netic properties theranostic materials

Thermal Resistance Simulation for CoF Packages

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Tsinghua Science and Technology 2015年第3期20卷 277-284页

作者： chuan Chen Qian Wang Xiaotian Meng Lin Tan jian Wang Chengqiang Cui jian Cai the Institute of Microelectronics Tsinghua University Beijing 100084 China AKM Electronics Technology (Suzhou) Company Ltd. Suzhou 215000 China the Institute of Microelectronics and Tsinghua National Laboratory for Information Science and Technology Tsinghua University. Beijing 100084 China

Chip-on-Film （CoF） is a packaging technology that mounts Integrated Circuits （IC） chips directly on a flexible substrate surface. As both power and the number of pins in such packages increase, thermal conditions become more important. In this paper, the thermal resistance of CoF packages is studied using Ansys software to perform finite-element analysis. Because of circuit complexity, two equivalent methods-a length-weighted method and an image-recognition method--are proposed in place of an accurate model to get equivalent thermal conductivity of CoF package devices. In our experiments, the simulated value of thermal resistance based on the length-weighted method was 1.653 K/W, and the value based on the image-recognition method was 1.911 K/W. The real thermal resistance value of the CoF package device is 1.812 K/W. So the error between the real value measured by a tester and the simulated value based on the length-weighted method is 8.8%, and the error between the real value and the simulated value based on the image-recognition method is 5.5%. Hence, both methods can provide effective simulation results, and the image-recognition method is more accurate. In addition, we optimized the CoF package structure. From the simulation results, the drop in thermal resistance after the optimization is obvious.

关键词： Chip-on-Film (CoF) finite element analysis equivalent thermal conductivity

Cross-linking density and aging constitutive model of HTPB coating under prestrain thermal accelerated aging

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Defence Technology（防务技术） 2020年第2期16卷 439-446页

作者： Yong-qiang Du jian zheng Chao Xiong Shijiazhuang Campus Army Engineering UniversityShijiazhuang 050003China

In order to study the cross-linking density and aging constitutive relationship of HTPB coating during storage,the thermal accelerated aging tests at 0%,3%,6%and 9%prestrains were carried *** crosslinking density of HTPB coating at different aging stages were tested using low-field^1 H NMR and the variation of cross-linking density was *** aging model of cross-linking density considering the chemical aging and the physical stretching factors was *** uniaxial tensile tests were carried out on HTPB coating at different aging stages and the cross-linking density was introduced into Ogden hyperelastic constitutive model as a characterization parameter of correction *** with uniaxial tensile test results,a prestrain aging constitutive model of HTPB coating was *** results show that the cross-linking density of HTPB coating increases rapidly at first and then slowly with the increase of thermal accelerated aging time without *** prestrain conditions,the crosslinking density of HTPB coating decreases at the early stage,and increases rapidly at first and then slowly at the middle and late stages of thermal accelerated *** correlation coefficients of aging model of cross-linking density and aging constitutive model with test results are R>0.9500 and R>0.9900 respectively,which can be used to accurately describe the cross-linking density and aging constitutive relationship of HTPB coating under prestrain accelerated thermal aging conditions.

关键词： Prestrain thermal accelerated aging Low-field^1H NMR Cross-linking density Aging constitutive model

Will Earth's next supercontinent assemble through the closure of the Pacific Ocean?

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National Science Review 2022年第12期9卷 73-81页

作者： chuan Huang zheng-Xiang Li Nan Zhang Earth Dynamics Research Group The Institute for Geoscience Research(TIGeR) School of Earth and Planetary Sciences Curtin University Key Laboratory of Orogenic Belts and Crustal Evolution School of Earth and Space SciencesPeking University

Earth’s known super continents are believed to have formed in vastly different ways,with two endmembers being introversion and *** former involves the closure of the internal oceans formed during the break-up of the previous supercontinent,whereas the latter involves the closure of the previous external super ***,it is unclear what caused such diverging behavior of supercontinent cycles that involved first-order interaction between subducting tectonic plates and the *** we address this question through 4D geo dynamic modeling using realistic tectonic *** results show that the strength of the oceanic lithosphere plays a critical role in determining the assembly path of a *** found that high oceanic lithospheric strength leads to introversion assembly,whereas lower strength leads to extroversion assembly.A theoretically estimated reduction in oceanic crustal thickness,and thus its strength,during Earth’s secular cooling indicates that introversion was only possible for the Precambrian time when the oceanic lithosphere was stronger,thus predicting the assembling of the next supercontinent Amasia through the closure of the Pacific Ocean instead of the Indian-Atlantic *** work provides a new understanding of the secular evolution of plate tectonics and geodynamics as the Earth cooled.

关键词： yield stress oceanic lithosphere introversion extroversion supercontinent cycle

ESTABLISHMENT OF VISIBLE ANIMAL METASTASIS MODELS FOR HUMAN NASOPHARYNGEAL CARCINOMA BASED ON A FAR-RED FLUORESCENT PROTEIN

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Journal of Innovative Optical Health Sciences 2012年第3期5卷 49-58页

作者： YING zheng chuan HUANG ZHIYONG CHENG MIN CHEN Britton Chance Center for Biomedical Photonics Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan 430074 P.R.China Wuhan Mechanical Technology College Wuhan 430075P.R.China The Hospital of Huazhong University of Science and Technology Wuhan 430074 P.R.China

Background and aims:The spectral properties of enhanced greenfluorescent protein(EGFP)used in current visualizable animal models for nasopharyngeal carcinoma(NPC)result in a limited imaging ***-redfluorescent proteins have optimal spectral wavelengths that allow deep tissue penetration,thus are well-suited for the imaging of tumor growth and metastases in live *** study aims to establish an imageable animal model of NPC using far-redfluorescent ***:Eukaryotic expression vectors of far-redfluorescent proteins,mLumin and Katushka S158A,were separately transfected into 5-8F NPC cells,and cell lines stably expressing the far-redfluorescent proteins were *** cells were intraperitoneally or intravenously injected into mice,and their tumorigenic and metastatic potential were examined throughfluorescence ***,factors affecting their tumorigenic ability were further assessed through testing side population(SP)cells proportion byflow ***:NPC cell line with high tumorigenicity and metastasis(5-8F-mL2)was screened out,which stably expressed far-redfluorescent *** and intravenous injection of 5-8F-mL2 cells resulted in an abdomen metastasis model and a lung metastasis *** addition,NPC cell line without tumorigenicity(5-8F-Katushka S158A)was screened *** percentage of SP cells between 5-8F-mL2 and 5-8F-Katushka S158A was found different,suggesting that the SP cell proportion may play a key role in the determination of cell tumorigenic ***:We successfully established animal models for NPC with high tumorigenicity and metastasis using a super-bright far-redfluorescent *** to the super-brightness and excellent wavelength parameters,these models may be applied as useful tools for intuitive and efficient monitoring of tumor growth and metastasis,as well as assessing the efficacy of nasopharyngeal cancer drugs.

关键词： Nasopharyngeal carcinoma metastasis model far-redfluorescent protein fluorescence imaging side-population cell