With the trend of the worldwide market competition, the globalagile manufacturing will become an advanced manufacturing technology in 21st century, and the Agile Virtual Enterprise (AVE) will also become a new organiz...With the trend of the worldwide market competition, the globalagile manufacturing will become an advanced manufacturing technology in 21st century, and the Agile Virtual Enterprise (AVE) will also become a new organizationform of manufacturing enterprises. As AVE is a complicated enierprise, how tobuild an optimal AVE organization is a difficult problem. In this paper, based onthe analysis of the AVE organization, the methodology for AVE including enterprisearchitecture, reference model, enterprise modeling methods and toolkit, guideline forsystem implementation is proposed. This paper also presents a Virtual Organization Integrated Support Environment (VOISE), which provides the computer-aidedsupport for rapidly building an optimal AVE.展开更多
By use of the two-layer adiabatic globe spectral model and the zonally averaged climatic data of winter season as initial values, 10-day integrations are carried out based on three kinds of model topography (i.e., (1)...By use of the two-layer adiabatic globe spectral model and the zonally averaged climatic data of winter season as initial values, 10-day integrations are carried out based on three kinds of model topography (i.e., (1) the averaged topography; (2) the envelope topography; (3) the modified envelope topography). The results show that the orography of the Northern Hemisphere plays an important role in the simulation of large-scale weather patterns in winter season. The simulation based on the envelope topography developed by Wallace et al. has some improvements in the Rocky Mountains area. But this scheme causes very serious horizontal expansion around the Tibetan Plateau (hereafter referred to as the TV). A modified envelope topography scheme has been worked out that increases the slope of the TP by decreasing the horizontal expansion while keeping the maximum altitude. The results show some improvements of the scheme around the TP. By analysis of the mechanical effects of the large-scale orography on the currents, the different forcings of the air flow over and around the TP and the Rocky Mountain (the RM) are investigated.展开更多
介绍了西班牙国铁AVE S 103高速列车的主要技术参数,阐述了列车编组形式、受电弓、牵引变压器、主变流器、传动单元、辅助电路、制动系统、列车控制与诊断、列车安全系统、转向架、车辆人性化设计等方面的设计特点。指出该车在最高运行...介绍了西班牙国铁AVE S 103高速列车的主要技术参数,阐述了列车编组形式、受电弓、牵引变压器、主变流器、传动单元、辅助电路、制动系统、列车控制与诊断、列车安全系统、转向架、车辆人性化设计等方面的设计特点。指出该车在最高运行速度350km/h下具有高水平的舒适度,最佳的服务质量,较高的系统集成度,代表欧洲高速列车最先进水平。展开更多
This paper analyzes the state of the art of partner selection and enumerates the advantage of partner selection based on gray relation analysis comparing to the other algorithms of the partner selection. Furthermore, ...This paper analyzes the state of the art of partner selection and enumerates the advantage of partner selection based on gray relation analysis comparing to the other algorithms of the partner selection. Furthermore, partner selection system based on gray relation for an Agile Virtual Enterprise（AVE） is analyzed and designed based on the definition and characteristics of the AVE. According to J2EE mode, the architecture of the partner selection system is put forward and the system is developed t^ing JSP, EJB and SQL Server. The paper lays emphasis on a gray relational mathematic model, AVE evaluation infrastructure, a core algorithm of partner selection and a multi-layer gray relation selection process.展开更多
文摘With the trend of the worldwide market competition, the globalagile manufacturing will become an advanced manufacturing technology in 21st century, and the Agile Virtual Enterprise (AVE) will also become a new organizationform of manufacturing enterprises. As AVE is a complicated enierprise, how tobuild an optimal AVE organization is a difficult problem. In this paper, based onthe analysis of the AVE organization, the methodology for AVE including enterprisearchitecture, reference model, enterprise modeling methods and toolkit, guideline forsystem implementation is proposed. This paper also presents a Virtual Organization Integrated Support Environment (VOISE), which provides the computer-aidedsupport for rapidly building an optimal AVE.
文摘By use of the two-layer adiabatic globe spectral model and the zonally averaged climatic data of winter season as initial values, 10-day integrations are carried out based on three kinds of model topography (i.e., (1) the averaged topography; (2) the envelope topography; (3) the modified envelope topography). The results show that the orography of the Northern Hemisphere plays an important role in the simulation of large-scale weather patterns in winter season. The simulation based on the envelope topography developed by Wallace et al. has some improvements in the Rocky Mountains area. But this scheme causes very serious horizontal expansion around the Tibetan Plateau (hereafter referred to as the TV). A modified envelope topography scheme has been worked out that increases the slope of the TP by decreasing the horizontal expansion while keeping the maximum altitude. The results show some improvements of the scheme around the TP. By analysis of the mechanical effects of the large-scale orography on the currents, the different forcings of the air flow over and around the TP and the Rocky Mountain (the RM) are investigated.
文摘介绍了西班牙国铁AVE S 103高速列车的主要技术参数,阐述了列车编组形式、受电弓、牵引变压器、主变流器、传动单元、辅助电路、制动系统、列车控制与诊断、列车安全系统、转向架、车辆人性化设计等方面的设计特点。指出该车在最高运行速度350km/h下具有高水平的舒适度,最佳的服务质量,较高的系统集成度,代表欧洲高速列车最先进水平。
文摘This paper analyzes the state of the art of partner selection and enumerates the advantage of partner selection based on gray relation analysis comparing to the other algorithms of the partner selection. Furthermore, partner selection system based on gray relation for an Agile Virtual Enterprise（AVE） is analyzed and designed based on the definition and characteristics of the AVE. According to J2EE mode, the architecture of the partner selection system is put forward and the system is developed t^ing JSP, EJB and SQL Server. The paper lays emphasis on a gray relational mathematic model, AVE evaluation infrastructure, a core algorithm of partner selection and a multi-layer gray relation selection process.
