E-commerce systems for construction material procurement are becoming increasingly important in Hong Kong. These E-commerce systems are non-interoperable and create problems for the buyers who use these systems to pur...E-commerce systems for construction material procurement are becoming increasingly important in Hong Kong. These E-commerce systems are non-interoperable and create problems for the buyers who use these systems to purchase construction materials. This paper presents the mobile agent-based approach and Web services-based approach for enabling interoperation of these systems in the E-Union environment.展开更多
this paper analyzes application status of tourism e-commerce in China and the Existing problems, points out that the construction of tourism e-commerce platform is an important part of the development of tourism elect...this paper analyzes application status of tourism e-commerce in China and the Existing problems, points out that the construction of tourism e-commerce platform is an important part of the development of tourism electronic commerce. The implementation of all business systems of various tourism enterprise data integration and information integration, the travel industry, all kinds of information resources for collaborative centralized management. By connecting the information management system of scattered all corporate travel value chain, realize the unified operation in the tourism e-commerce platform, improve the exchange of information and online transaction speed. According to our country＇ s tourism status and characteristics, from the feasibility analysis, function analysis, performance analysis and service oriented thought, this paper analyzes the system architecture of and data flow diagrams, system flow chart, PAD chart analysis of the system＇ s business processes. And it was analyzed and discussed briefly from the aspects of adaptability, functions, implementation strategy.展开更多
The aim of this paper is the evaluation of the performance of a low pressure PEM （proton exchange membrane） fuel cell stack to step load changes, which are characteristic of standalone fuel cell system applications....The aim of this paper is the evaluation of the performance of a low pressure PEM （proton exchange membrane） fuel cell stack to step load changes, which are characteristic of standalone fuel cell system applications. The goal is a better understanding of the electrical behavior of the FC （fuel cell）, as a result of the electrochemical processes, via the cell＇s voltage characteristic during transient response. While changing the load, the performance of significant parameters affected such as temperature, pressure, purge status etc. are registered and evaluated. The analysis and experiment are based on a low pressure 1.2 kW PEM fuel cell stack （NEXAS power module）. Then, the experiment is simulated using Matlab/Simulink tools, while PCU （power conditioning units） are added in order to control power flow for enhanced performance. Finally, both operational and simulation data are compared to each other showing that simple PCUs applications can improve system＇s efficiency.展开更多
The development of e-commerce in agriculture is our weak link in the e-commerce system, the formation of agricultural industrialization and modernization of agriculture development incentives did not play its due role...The development of e-commerce in agriculture is our weak link in the e-commerce system, the formation of agricultural industrialization and modernization of agriculture development incentives did not play its due role. Improvement of agricultural e-commerce model is to provide a more direct way of agricultural e-commerce operations performance. Based on this, this paper analyzes the status quo of e-commerce development of agricultural markets, and it is to explore the complete path of agricultural development of electronic commerce.展开更多
Forestry industry is an important commonweal and fundamental industry. Forestry enterprises take the burden of ecological construction and supply of forest products, and economical benefits, ecological benefits, and s...Forestry industry is an important commonweal and fundamental industry. Forestry enterprises take the burden of ecological construction and supply of forest products, and economical benefits, ecological benefits, and social benefits as well. However, electronic-business (e-business), as a completely new business operation model, will bring great opportunities and challenges to forestry enterprises. On the basis of simple analysis of e-business conception model, the internal and external environment for forestry enterprises to develop e-business was thoroughly analysed and researched , and finally effective strategic options were proposed.展开更多
文摘E-commerce systems for construction material procurement are becoming increasingly important in Hong Kong. These E-commerce systems are non-interoperable and create problems for the buyers who use these systems to purchase construction materials. This paper presents the mobile agent-based approach and Web services-based approach for enabling interoperation of these systems in the E-Union environment.
文摘this paper analyzes application status of tourism e-commerce in China and the Existing problems, points out that the construction of tourism e-commerce platform is an important part of the development of tourism electronic commerce. The implementation of all business systems of various tourism enterprise data integration and information integration, the travel industry, all kinds of information resources for collaborative centralized management. By connecting the information management system of scattered all corporate travel value chain, realize the unified operation in the tourism e-commerce platform, improve the exchange of information and online transaction speed. According to our country＇ s tourism status and characteristics, from the feasibility analysis, function analysis, performance analysis and service oriented thought, this paper analyzes the system architecture of and data flow diagrams, system flow chart, PAD chart analysis of the system＇ s business processes. And it was analyzed and discussed briefly from the aspects of adaptability, functions, implementation strategy.
文摘The aim of this paper is the evaluation of the performance of a low pressure PEM （proton exchange membrane） fuel cell stack to step load changes, which are characteristic of standalone fuel cell system applications. The goal is a better understanding of the electrical behavior of the FC （fuel cell）, as a result of the electrochemical processes, via the cell＇s voltage characteristic during transient response. While changing the load, the performance of significant parameters affected such as temperature, pressure, purge status etc. are registered and evaluated. The analysis and experiment are based on a low pressure 1.2 kW PEM fuel cell stack （NEXAS power module）. Then, the experiment is simulated using Matlab/Simulink tools, while PCU （power conditioning units） are added in order to control power flow for enhanced performance. Finally, both operational and simulation data are compared to each other showing that simple PCUs applications can improve system＇s efficiency.
文摘The development of e-commerce in agriculture is our weak link in the e-commerce system, the formation of agricultural industrialization and modernization of agriculture development incentives did not play its due role. Improvement of agricultural e-commerce model is to provide a more direct way of agricultural e-commerce operations performance. Based on this, this paper analyzes the status quo of e-commerce development of agricultural markets, and it is to explore the complete path of agricultural development of electronic commerce.
文摘Forestry industry is an important commonweal and fundamental industry. Forestry enterprises take the burden of ecological construction and supply of forest products, and economical benefits, ecological benefits, and social benefits as well. However, electronic-business (e-business), as a completely new business operation model, will bring great opportunities and challenges to forestry enterprises. On the basis of simple analysis of e-business conception model, the internal and external environment for forestry enterprises to develop e-business was thoroughly analysed and researched , and finally effective strategic options were proposed.
