On the basis of the theory of continuous compaction technology, we put forward the vibratory compaction value （VCV） index measured by a roller compactor, in order to evaluate the quality of continuously compacted su...On the basis of the theory of continuous compaction technology, we put forward the vibratory compaction value （VCV） index measured by a roller compactor, in order to evaluate the quality of continuously compacted subgrade. The relationships between the VCV index and the currently used indexes K30, Evd, Ev1 and Ev2, were explored by analyzing the experimental data collected from two test sections on the Beijing - Shanghai High-Speed Railway. The result shows that the VCV index has a linear relationship with the currently used indexes.展开更多
In this paper, electrical energy quality and its indices in ship electric networks are introduced, especially the meaning of electrical energy quality terms in voltage and active and reactive power distribution indice...In this paper, electrical energy quality and its indices in ship electric networks are introduced, especially the meaning of electrical energy quality terms in voltage and active and reactive power distribution indices. Then methods of measurement of marine electrical energy indices are introduced in details and a microprocessor measurement-diagnosis system with the function of measurement and control is designed. Afterwards, estimation and control of electrical power quality of marine electrical power networks are introduced. And finally, according to the existing method of measurement and control of electrical power quality in ship power networks, the improvement of relative method is proposed.展开更多
目的探讨基于品管圈(quality control circle,QCC)活动的质控管理体系对医院消毒管理质量提升的实际效果。方法选取莱芜区妇幼保健计划生育服务中心工作的100名工作人员作为研究对象,2021年6月-2022年12月实施传统消毒管理策略,作为传统...目的探讨基于品管圈(quality control circle,QCC)活动的质控管理体系对医院消毒管理质量提升的实际效果。方法选取莱芜区妇幼保健计划生育服务中心工作的100名工作人员作为研究对象,2021年6月-2022年12月实施传统消毒管理策略,作为传统组;2023年1月-2024年6月实施基于QCC活动的质控管理体系,作为探究组,两组为同一批人员。对比两组消毒相关知识掌握程度、手卫生技术操作水平、环境物表清洁消毒合格率。结果探究组消毒相关知识掌握程度评分及手卫生技术操作评分均高于传统组,差异有统计学意义(P均<0.05)。探究组环境物表清洁消毒合格率99.33%(596/600)高于传统组97.83%(587/600),差异有统计学意义(χ^(2)=4.332,P<0.05)。结论基于QCC活动的质控管理体系能够提高工作人员对消毒知识的掌握程度、手卫生技术操作水平以及环境物表的清洁消毒合格率。展开更多
Albira SI小动物单光子发射断层显像-X线计算机体层成像仪(SPECT-CT)是单光子放射性药物临床前研究的先进影像工具,其质量控制及检测性能是图像质量和实验数据可靠性的基本保障。为评价Albira SI SPECT-CT设备应用的真实性、可靠性,采...Albira SI小动物单光子发射断层显像-X线计算机体层成像仪(SPECT-CT)是单光子放射性药物临床前研究的先进影像工具,其质量控制及检测性能是图像质量和实验数据可靠性的基本保障。为评价Albira SI SPECT-CT设备应用的真实性、可靠性,采用临床常用单光子核素^(99m)Tc对Albira SI小动物SPECT-CT进行季度性质量控制,同时进行测量结果的线性、稳定性、偏差的检测,并初步尝试小动物骨代谢扫描。结果表明,该设备与放射性活度之间线性关系良好,稳定性强,与常用活度测量设备测量结果差异较小。Albira SI小动物SPECT-CT能够准确反映单光子核素^(99m)Tc的放射性活度分布,小鼠骨代谢显像效果好,适用于临床前放射性药物研究。本研究中建立的系统研究SPECT-CT性能的方法可为类似设备的操作提供方法学依据。展开更多
基金The Scientific and Technology Researchand Development Program of Ministry of Railway of China(No.2008G005-A)the Fundamental Research Funds forthe Central Universities (No.SWJTU09BR042)
文摘On the basis of the theory of continuous compaction technology, we put forward the vibratory compaction value （VCV） index measured by a roller compactor, in order to evaluate the quality of continuously compacted subgrade. The relationships between the VCV index and the currently used indexes K30, Evd, Ev1 and Ev2, were explored by analyzing the experimental data collected from two test sections on the Beijing - Shanghai High-Speed Railway. The result shows that the VCV index has a linear relationship with the currently used indexes.
文摘In this paper, electrical energy quality and its indices in ship electric networks are introduced, especially the meaning of electrical energy quality terms in voltage and active and reactive power distribution indices. Then methods of measurement of marine electrical energy indices are introduced in details and a microprocessor measurement-diagnosis system with the function of measurement and control is designed. Afterwards, estimation and control of electrical power quality of marine electrical power networks are introduced. And finally, according to the existing method of measurement and control of electrical power quality in ship power networks, the improvement of relative method is proposed.
文摘目的探讨基于品管圈(quality control circle,QCC)活动的质控管理体系对医院消毒管理质量提升的实际效果。方法选取莱芜区妇幼保健计划生育服务中心工作的100名工作人员作为研究对象,2021年6月-2022年12月实施传统消毒管理策略,作为传统组;2023年1月-2024年6月实施基于QCC活动的质控管理体系,作为探究组,两组为同一批人员。对比两组消毒相关知识掌握程度、手卫生技术操作水平、环境物表清洁消毒合格率。结果探究组消毒相关知识掌握程度评分及手卫生技术操作评分均高于传统组,差异有统计学意义(P均<0.05)。探究组环境物表清洁消毒合格率99.33%(596/600)高于传统组97.83%(587/600),差异有统计学意义(χ^(2)=4.332,P<0.05)。结论基于QCC活动的质控管理体系能够提高工作人员对消毒知识的掌握程度、手卫生技术操作水平以及环境物表的清洁消毒合格率。
