In order to apply compressive sensing in wireless sensor network, inside the nodes cluster classified by the spatial correlation, we propose that a cluster head adopts free space optical communication with space divis...In order to apply compressive sensing in wireless sensor network, inside the nodes cluster classified by the spatial correlation, we propose that a cluster head adopts free space optical communication with space division multiple access, and a sensor node uses a modulating retro-reflector for communication. Thus while a random sampling matrix is used to guide the establishment of links between head cluster and sensor nodes, the random linear projection is accomplished. To establish multiple links at the same time, an optical space division multiple access antenna is designed. It works in fixed beams switching mode and consists of optic lens with a large field of view（FOV）, fiber array on the focal plane which is used to realize virtual channels segmentation, direction of arrival sensor, optical matrix switch and controller. Based on the angles of nodes＇ laser beams, by dynamically changing the route, optical matrix switch actualizes the multi-beam full duplex tracking receiving and transmission. Due to the structure of fiber array, there will be several fade zones both in the focal plane and in lens＇ FOV. In order to lower the impact of fade zones and harmonize multibeam, a fiber array adjustment is designed. By theoretical, simulated and experimental study, the antenna＇s qualitative feasibility is validated.展开更多
目的通过在军队某三甲医院应用军队医疗绩效考核系统,发现应用难点,找到具有可行性的应对措施,进行思考和总结。方法使用军队医疗绩效考核新系统,通过医院信息系统(hospital information system,HIS)数据库提取原始数据,通过专家打分法...目的通过在军队某三甲医院应用军队医疗绩效考核系统,发现应用难点,找到具有可行性的应对措施,进行思考和总结。方法使用军队医疗绩效考核新系统,通过医院信息系统(hospital information system,HIS)数据库提取原始数据,通过专家打分法确定风险系数,根据医院管理重点、需求及学科发展建设特点确定指标、权重,模拟运行新系统,寻找影响各科室绩效分配额的原因,观察绩效分配的结果。结果总部规定的指标主要偏重工作量和绩效指标,缺乏对医院自身内涵建设的考评,科室风险系数对绩效津贴影响较大。结论应用新系统时应当注重以下3个方面,应注重自设指标的选取,加强科室风险系数的动态考评,考虑各指标对比值的选择。展开更多
基金supported by the National Natural Science Foundation of China(61372069)and the"111"Project(B08038)
文摘In order to apply compressive sensing in wireless sensor network, inside the nodes cluster classified by the spatial correlation, we propose that a cluster head adopts free space optical communication with space division multiple access, and a sensor node uses a modulating retro-reflector for communication. Thus while a random sampling matrix is used to guide the establishment of links between head cluster and sensor nodes, the random linear projection is accomplished. To establish multiple links at the same time, an optical space division multiple access antenna is designed. It works in fixed beams switching mode and consists of optic lens with a large field of view（FOV）, fiber array on the focal plane which is used to realize virtual channels segmentation, direction of arrival sensor, optical matrix switch and controller. Based on the angles of nodes＇ laser beams, by dynamically changing the route, optical matrix switch actualizes the multi-beam full duplex tracking receiving and transmission. Due to the structure of fiber array, there will be several fade zones both in the focal plane and in lens＇ FOV. In order to lower the impact of fade zones and harmonize multibeam, a fiber array adjustment is designed. By theoretical, simulated and experimental study, the antenna＇s qualitative feasibility is validated.
文摘目的通过在军队某三甲医院应用军队医疗绩效考核系统,发现应用难点,找到具有可行性的应对措施,进行思考和总结。方法使用军队医疗绩效考核新系统,通过医院信息系统(hospital information system,HIS)数据库提取原始数据,通过专家打分法确定风险系数,根据医院管理重点、需求及学科发展建设特点确定指标、权重,模拟运行新系统,寻找影响各科室绩效分配额的原因,观察绩效分配的结果。结果总部规定的指标主要偏重工作量和绩效指标,缺乏对医院自身内涵建设的考评,科室风险系数对绩效津贴影响较大。结论应用新系统时应当注重以下3个方面,应注重自设指标的选取,加强科室风险系数的动态考评,考虑各指标对比值的选择。
