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Superconducting power cables with high capacity and high efficiency are regarded as a key technology to realize the next-generation power networks. Coated conductors (CCs) have been extensively used to develop such cables, particularly more than 4+ mm-wide CCs. Recent research shows that narrow CCs (e.g., 2 mm) prove to have a pronounced advantage on cable ac loss reduction. Besides, thanks to laser...
The land use structure and biological service function of Dian-chi lake watershed are being changed by the rapid development of social economy and urbanization, which finally leads to the generation and aggravation of agriculture and urban non-point source pollution in whole basin. Thereby, it is necessary to study the relationship and spatiotemporal process between human activities and land use/cover...
Through using the ArcGIS software as the platform, and taking DEM analysis, raster calculation and spatial interpolation of spatial analysis technology as the core method, this paper selects Menghai County as the study area, combines with the Delphi method, analytic hierarchy process, fuzzy membership function, farmland Integrated Fertility Index ( IFI ) and other methods, to establish major factors...
In this article, it is explored that how to design and implement a temporal and spatial early warning model for AIDS spread on sex in Kunming (Yunnan province) by using ABM and making spatial analysis by developing in ArcEngine and ArcSDE. Obviously, the method of integration between ABM models and GIS technology is also clarified as a key technology in the text. As a result, based on a spreading...
At the age of post-Kyoto Protocol, international forestry carbon sequestration project not only has strongly achieved the form of harmoniously developing between economy and environment conservancy in developing countries, but also is promoting the relative research on theory and technology in Forestry Carbon Sequestration. And this paper has discussed that how to establish the Geo-Spatial Model of...
Trust is a key constraining factor in the development of electronic commerce. The parties must establish a certain trust model between each other before the beginning of transaction. This paper analyses the advantages and deficiencies of existing models, and presents a trust model for E-commerce based on Bayesian network. The model is based on Bayesian network and conditional probability formula,...
Trust plays an important role in the development, implementation and operation of e-commerce systems. This paper Analyzes the current research of e-commerce trust model and research method, proposes a formal model of e-commerce trust management based on reputation, disccusses the various issues involved and their solution ideas, which gives a good foundation for further research.
The research subject of this paper is spherical 5R parallel manipulator, on the basis of analysis of kinematics of the manipulator, the dynamic model of the manipulator was established by virtue of Lagrange method, and via numerical calculating example, the dynamic model of the manipulator was simulated by two software Matlab and ADAMS, by comparing the results obtained by two software, we proved...
This article established the SV-MTVP (time-varying parameters of SV-M model) model to describe the crude oil price volatility. Based on Bayesian principle, this paper used of the MCMC methods to estimate the parameter of the SV-MTVP model. And then established the MS model and analyzed the change-point of crude oil price volatility which based on the estimated results of the time-varying parameters...
Currently, the performance evaluation have already become the important means of investigation employee's performance, performance evaluation could contribute to the realization of a business' target, exaltation of business performance and improvement of employees' behavior, promotion of ability. Teaching resource performance evaluation in colleges also becomes research of current education focus...
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