Through our newly-developed ＂chemical vapor deposition integrated process （ISVD-IP）＇＂ using carbon OlOXlae （t..u2） as me raw matenal and only carbon source introduced, CO2 could be catalytically activated and c...Through our newly-developed ＂chemical vapor deposition integrated process （ISVD-IP）＇＂ using carbon OlOXlae （t..u2） as me raw matenal and only carbon source introduced, CO2 could be catalytically activated and converted to a new solid-form product, i.e., carbon nanotubes （CO2-derived） at a quite high yield （the single-pass carbon yield in the solid-form carbon-product produced from CO2 catalytic capture and conversion was more than 30% at a single-pass carbon-base）. For comparison, when only pure carbon dioxide was introduced using the conventional CVD method without integrated process, no solid-form carbon-material product could be formed. In the addition of saturated steam at room temperature in the feed for CVD, there were much more end-opening carbon nano-tubes produced, at a slightly higher carbon yield. These inspiring works opened a remarkable and alternative new approach for carbon dioxide catalytic capture to solid-form product, comparing with that of CO2 sequestration （CCS） or CO2 mineralization （solidification）, etc. As a result, there was much less body volume and almost no greenhouse effect for this solid-form carbon-material than those of primitive carbon dioxide.展开更多
Some key techniques for the development of web-based product data management （PDM） system are introduced. The four-tiered B/S architecture of a PDM system-BITPDM is introduced first, followed by its design and imple...Some key techniques for the development of web-based product data management （PDM） system are introduced. The four-tiered B/S architecture of a PDM system-BITPDM is introduced first, followed by its design and implementation, including virtual data vault, flexible coding system, document management, product structure and configuration management, workflow/process and product maturity management. BITPDM can facilitate the activities from new product introduction phase to manufacturing, and manage the product data andtheir dynamic changing history. Based on Microsoft. NET, XML, web service and SOAP techniques, BITPDM realizes the integration and efficient management of product information.展开更多
为解决当前动车组高级修工艺管理存在的问题,基于高级修部件物料清单(BOM,Bill of Materials)和工艺BOM的构建逻辑,以及工艺基础数据标准化、参数化、结构化的实际需要,融合工艺BOM与工艺流程的映射方法,采用SpringBoot+VUE前后端分离...为解决当前动车组高级修工艺管理存在的问题,基于高级修部件物料清单(BOM,Bill of Materials)和工艺BOM的构建逻辑,以及工艺基础数据标准化、参数化、结构化的实际需要,融合工艺BOM与工艺流程的映射方法,采用SpringBoot+VUE前后端分离的开发架构,设计了高级修工艺数字化管理系统。该系统实现了高级修工艺编制规范的统一和编制流程的优化,可自动生成工艺流程图和甘特图,并将准确的规格数据传输到制造执行系统(MES),已在中国铁路上海局集团有限公司上海动车段转向架车间开展应用,满足工艺数字化管理和辅助数字化生产的需要。展开更多
基金the National 973 Program of Ministry of Sciences and Technologies of China(2011CB201202)the National Natural Science Foundation of China(20776089)
文摘Through our newly-developed ＂chemical vapor deposition integrated process （ISVD-IP）＇＂ using carbon OlOXlae （t..u2） as me raw matenal and only carbon source introduced, CO2 could be catalytically activated and converted to a new solid-form product, i.e., carbon nanotubes （CO2-derived） at a quite high yield （the single-pass carbon yield in the solid-form carbon-product produced from CO2 catalytic capture and conversion was more than 30% at a single-pass carbon-base）. For comparison, when only pure carbon dioxide was introduced using the conventional CVD method without integrated process, no solid-form carbon-material product could be formed. In the addition of saturated steam at room temperature in the feed for CVD, there were much more end-opening carbon nano-tubes produced, at a slightly higher carbon yield. These inspiring works opened a remarkable and alternative new approach for carbon dioxide catalytic capture to solid-form product, comparing with that of CO2 sequestration （CCS） or CO2 mineralization （solidification）, etc. As a result, there was much less body volume and almost no greenhouse effect for this solid-form carbon-material than those of primitive carbon dioxide.
文摘Some key techniques for the development of web-based product data management （PDM） system are introduced. The four-tiered B/S architecture of a PDM system-BITPDM is introduced first, followed by its design and implementation, including virtual data vault, flexible coding system, document management, product structure and configuration management, workflow/process and product maturity management. BITPDM can facilitate the activities from new product introduction phase to manufacturing, and manage the product data andtheir dynamic changing history. Based on Microsoft. NET, XML, web service and SOAP techniques, BITPDM realizes the integration and efficient management of product information.
文摘为解决当前动车组高级修工艺管理存在的问题,基于高级修部件物料清单(BOM,Bill of Materials)和工艺BOM的构建逻辑,以及工艺基础数据标准化、参数化、结构化的实际需要,融合工艺BOM与工艺流程的映射方法,采用SpringBoot+VUE前后端分离的开发架构,设计了高级修工艺数字化管理系统。该系统实现了高级修工艺编制规范的统一和编制流程的优化,可自动生成工艺流程图和甘特图,并将准确的规格数据传输到制造执行系统(MES),已在中国铁路上海局集团有限公司上海动车段转向架车间开展应用,满足工艺数字化管理和辅助数字化生产的需要。
