采用C#和组件技术相结合的开发环境,以Visual Studio 2010作为系统用户界面开发与计算模块编程工具,基于DotSpatial组件进行二次开发,初步形成了基于开源GIS的海南省高速公路膨胀土地理信息系统,系统实现了海南省公路膨胀土分布图的浏...采用C#和组件技术相结合的开发环境,以Visual Studio 2010作为系统用户界面开发与计算模块编程工具,基于DotSpatial组件进行二次开发,初步形成了基于开源GIS的海南省高速公路膨胀土地理信息系统,系统实现了海南省公路膨胀土分布图的浏览编辑、信息查询、资料管理、部分空间分析等功能,具有直观、快速的可视化效果。为工程建设的管理及膨胀土灾害防治和预警决策提供依据。展开更多
The work distills the main mechanisms during the lithium insertion/extraction of LiFePO_4 cathode materials. The "diffusion-controlled" and "phase-boundary controlled" mechanism are especially illu...The work distills the main mechanisms during the lithium insertion/extraction of LiFePO_4 cathode materials. The "diffusion-controlled" and "phase-boundary controlled" mechanism are especially illustrated. Meanwhile, some recent observation and analyses by in-situ or in operando on the Li-insertion/extraction of LiFePO_4 are summarized and prospected.展开更多
Powder in tube process（PIT） was adopted for the fabrication of single filament Bi-2223 tapes, and a heat treatment process including the first heat treatment（HT1）, intermediate rolling（IR）, and second heat treat...Powder in tube process（PIT） was adopted for the fabrication of single filament Bi-2223 tapes, and a heat treatment process including the first heat treatment（HT1）, intermediate rolling（IR）, and second heat treatment（HT2） was performed. The phase evolution mechanism and microstructure changes during these heat treatment processes were systematically discussed. The influences of HT1 parameters on the phase evolution process of Bi-2223 tapes were discussed. With the optimized HT1 process, a proper Bi-2223 content of about 90% was achieved. HT2 process was also optimized by adding a post annealing process. An obvious increase of current capacity was obtained due to the enhancement of intergrain connections. Single filament Bi-2223 tapes with the critical current of Ic-90 A were fabricated with the optimized sintering process.展开更多
文摘采用C#和组件技术相结合的开发环境,以Visual Studio 2010作为系统用户界面开发与计算模块编程工具,基于DotSpatial组件进行二次开发,初步形成了基于开源GIS的海南省高速公路膨胀土地理信息系统,系统实现了海南省公路膨胀土分布图的浏览编辑、信息查询、资料管理、部分空间分析等功能,具有直观、快速的可视化效果。为工程建设的管理及膨胀土灾害防治和预警决策提供依据。
基金supported by the National Natural Science Foundation of China(No.51504196)Key Research and Development Plan of Shaanxi Province(No.2017ZDXM-GY-039)
文摘The work distills the main mechanisms during the lithium insertion/extraction of LiFePO_4 cathode materials. The "diffusion-controlled" and "phase-boundary controlled" mechanism are especially illustrated. Meanwhile, some recent observation and analyses by in-situ or in operando on the Li-insertion/extraction of LiFePO_4 are summarized and prospected.
基金Funded by the National Natural Science Foundation of China(No.51472206)the National ITER Program of China(2015GB115001)the Program for Innovative Research Team in Shaanxi Province(No.2013KCT-07)
文摘Powder in tube process（PIT） was adopted for the fabrication of single filament Bi-2223 tapes, and a heat treatment process including the first heat treatment（HT1）, intermediate rolling（IR）, and second heat treatment（HT2） was performed. The phase evolution mechanism and microstructure changes during these heat treatment processes were systematically discussed. The influences of HT1 parameters on the phase evolution process of Bi-2223 tapes were discussed. With the optimized HT1 process, a proper Bi-2223 content of about 90% was achieved. HT2 process was also optimized by adding a post annealing process. An obvious increase of current capacity was obtained due to the enhancement of intergrain connections. Single filament Bi-2223 tapes with the critical current of Ic-90 A were fabricated with the optimized sintering process.
