气象服务数据分发是公共气象服务业务的重要组成。PMSDDS V1.0(Public Meteorological Service Data Distribution Software Version 1.0)公共气象服务数据传输软件是一套业务化的气象服务数据分发系统。该软件对开源传输组件libcurl进...气象服务数据分发是公共气象服务业务的重要组成。PMSDDS V1.0(Public Meteorological Service Data Distribution Software Version 1.0)公共气象服务数据传输软件是一套业务化的气象服务数据分发系统。该软件对开源传输组件libcurl进行二次应用开发,在FTP协议下传输各类气象服务数据。该系统具有支持公共气象服务产品命名规范下的文件名精确和模糊匹配、多参数控制(包括超时、批处理、传输速率等)、日志等特点,有效解决了数据传输业务部署分散、与业务其他流程紧耦合、重复开发、缺乏日志等突出问题。针对常见数据传输问题如漏传、多传、拥塞、等待等给出解决方案。业务应用结果表明,软件运行稳定,传输成功率达到99.97%以上。软件自上线以来,数据传输业务得到统一部署和监控。据运维部门统计,传输业务年部署量较上一年增加50次左右,因传输问题导致的运维故障率同比下降约33%,大大提高了业务效率。展开更多
Microscopic colitis may be defined as a clinical syndrome, of unknown etiology, consisting of chronic watery diarrhea, with no alterations in the large bowel at the endoscopic and radiologic evaluation. Therefore, a d...Microscopic colitis may be defined as a clinical syndrome, of unknown etiology, consisting of chronic watery diarrhea, with no alterations in the large bowel at the endoscopic and radiologic evaluation. Therefore, a definitive diagnosis is only possible by histological analysis. The epidemiological impact of this disease has become increasingly clear in the last years, with most data coming from Western countries. Microscopic colitis includes two histological subtypes [collagenous colitis (CC) and lymphocytic colitis (LC)] with no differences in clinical presentation and management. Collagenous colitis is characterized by a thickening of the subepithelial collagen layer that is absent in LC. The main feature of LC is an increase of the density of intra-epithelial lymphocytes in the surface epithelium. A number of pathogenetic theories have been proposed over the years, involving the role of luminal agents, autoimmunity, eosinophils, genetics (human leukocyte antigen), biliary acids, infections, alterations of pericryptal fibroblasts, and drug intake; drugs like ticlopidine, carbamazepine or ranitidine are especially associated with the development of LC, while CC is more frequently linked to cimetidine, non-steroidal antiinflammatory drugs and lansoprazole. Microscopic colitis typically presents as chronic or intermittent watery diarrhea, that may be accompanied by symptoms such as abdominal pain, weight loss and incontinence. Recent evidence has added new pharmacological options for the treatment of microscopic colitis:the role of steroidal therapy, especially oral budesonide, has gained relevance, as well as immunosuppressive agents such as azathioprine and 6-mercaptopurine. The use of anti-tumor necrosis factoragents, infliximab and adalimumab, constitutes a new, interesting tool for the treatment of microscopic colitis, but larger, adequately designed studies are needed to confirm existing data.展开更多
智能公交系统是城市发展的特征,是解决城市交通问题的重要途径。智能公交系统的建设可以有效提高公交行业的管理水平,提高公交系统的运行效率和服务水平,是城市公交发展的重要一步。本设计基于雄帝车载终端EMP5210C,利用设备本身具有4G...智能公交系统是城市发展的特征,是解决城市交通问题的重要途径。智能公交系统的建设可以有效提高公交行业的管理水平,提高公交系统的运行效率和服务水平,是城市公交发展的重要一步。本设计基于雄帝车载终端EMP5210C,利用设备本身具有4G、ARM、嵌入式Linux、QT等技术,实现基于整车终端EMP5210C的智能总线数据的上传和下载。本设计主要采用文件传输协议(File Transfer Protocol,文件传输协议)来完成FTP服务器与车载终端之间的可靠数据传输,避免数据丢失,尽可能多的实现车载终端与服务器之间的连接。由于机载终端EMP5210C安装的是嵌入式LINUX系统,所以在终端开发FTP功能比较麻烦。本设计采用LIBCURL跨平台网络协议库,在终端上实现FTP文件传输。展开更多
文摘气象服务数据分发是公共气象服务业务的重要组成。PMSDDS V1.0(Public Meteorological Service Data Distribution Software Version 1.0)公共气象服务数据传输软件是一套业务化的气象服务数据分发系统。该软件对开源传输组件libcurl进行二次应用开发,在FTP协议下传输各类气象服务数据。该系统具有支持公共气象服务产品命名规范下的文件名精确和模糊匹配、多参数控制(包括超时、批处理、传输速率等)、日志等特点,有效解决了数据传输业务部署分散、与业务其他流程紧耦合、重复开发、缺乏日志等突出问题。针对常见数据传输问题如漏传、多传、拥塞、等待等给出解决方案。业务应用结果表明,软件运行稳定,传输成功率达到99.97%以上。软件自上线以来,数据传输业务得到统一部署和监控。据运维部门统计,传输业务年部署量较上一年增加50次左右,因传输问题导致的运维故障率同比下降约33%,大大提高了业务效率。
文摘Microscopic colitis may be defined as a clinical syndrome, of unknown etiology, consisting of chronic watery diarrhea, with no alterations in the large bowel at the endoscopic and radiologic evaluation. Therefore, a definitive diagnosis is only possible by histological analysis. The epidemiological impact of this disease has become increasingly clear in the last years, with most data coming from Western countries. Microscopic colitis includes two histological subtypes [collagenous colitis (CC) and lymphocytic colitis (LC)] with no differences in clinical presentation and management. Collagenous colitis is characterized by a thickening of the subepithelial collagen layer that is absent in LC. The main feature of LC is an increase of the density of intra-epithelial lymphocytes in the surface epithelium. A number of pathogenetic theories have been proposed over the years, involving the role of luminal agents, autoimmunity, eosinophils, genetics (human leukocyte antigen), biliary acids, infections, alterations of pericryptal fibroblasts, and drug intake; drugs like ticlopidine, carbamazepine or ranitidine are especially associated with the development of LC, while CC is more frequently linked to cimetidine, non-steroidal antiinflammatory drugs and lansoprazole. Microscopic colitis typically presents as chronic or intermittent watery diarrhea, that may be accompanied by symptoms such as abdominal pain, weight loss and incontinence. Recent evidence has added new pharmacological options for the treatment of microscopic colitis:the role of steroidal therapy, especially oral budesonide, has gained relevance, as well as immunosuppressive agents such as azathioprine and 6-mercaptopurine. The use of anti-tumor necrosis factoragents, infliximab and adalimumab, constitutes a new, interesting tool for the treatment of microscopic colitis, but larger, adequately designed studies are needed to confirm existing data.
文摘智能公交系统是城市发展的特征,是解决城市交通问题的重要途径。智能公交系统的建设可以有效提高公交行业的管理水平,提高公交系统的运行效率和服务水平,是城市公交发展的重要一步。本设计基于雄帝车载终端EMP5210C,利用设备本身具有4G、ARM、嵌入式Linux、QT等技术,实现基于整车终端EMP5210C的智能总线数据的上传和下载。本设计主要采用文件传输协议(File Transfer Protocol,文件传输协议)来完成FTP服务器与车载终端之间的可靠数据传输,避免数据丢失,尽可能多的实现车载终端与服务器之间的连接。由于机载终端EMP5210C安装的是嵌入式LINUX系统,所以在终端开发FTP功能比较麻烦。本设计采用LIBCURL跨平台网络协议库,在终端上实现FTP文件传输。
