目的探析在医学检验设备维修管理工作中以PDCA循环管理模式为框架,结合多种管理方法的应用价值。方法确定PDCA循环的步骤,并与根本原因分析(Root Cause Analysis,RCA)、鱼骨图等管理方法与工具联合应用,观察实施综合管理法前后医学检验...目的探析在医学检验设备维修管理工作中以PDCA循环管理模式为框架,结合多种管理方法的应用价值。方法确定PDCA循环的步骤,并与根本原因分析(Root Cause Analysis,RCA)、鱼骨图等管理方法与工具联合应用,观察实施综合管理法前后医学检验设备正常使用率、故障率、科室满意度等相关情况。结果实施PDCA管理框架下多种管理方法后,院区医学检验设备使用率从管理前的78.1%增加至管理后的97.0%(χ^(2)=4.02,P<0.05);故障率从16.7%降低至5.8%(χ^(2)=6.25,P<0.05)。科室满意度也从管理前的81%提高至93.5%。结论以PDCA循环管理工作模式为框架,RCA、鱼骨图等多种管理工具的联合应用可有效提升医学检验类设备管理质量。展开更多
Considering the effect of viscosity-temperature relationship and cavitation of micro-scale film,the influencing factors on hydrodynamic lubrication performance of upstream pumping mechanical seal were investigated bas...Considering the effect of viscosity-temperature relationship and cavitation of micro-scale film,the influencing factors on hydrodynamic lubrication performance of upstream pumping mechanical seal were investigated based on the theory of hydrodynamic lubrication.N-S equation,energy equation,viscosity-temperature equation and vapor transport equation were solved with the finite volume method by using Fluent software,which was performed to analyze the influence of the viscosity-temperature and cavitation effect on hydrodynamic lubrication failure of the film.The research demonstrates that it will lead to the significant difference of the temperature field by considering the coupling of temperature and viscosity.When the film thickness decreases and the rotating speed rises,cavitation regions and viscous friction heat increases,the opening force of the film is also enhanced.However,the growth rate is restricted to the cavitation regions and viscous friction heat,and the opening force begins to decline to a certain extent,and thereby being insufficient to open the surfaces of the seals and leading to the failure of automatic adjustment function and severe wear,lubrication failure occurrs.Through comprehensive research on the influences of viscosity-temperature and cavitation effect on hydrodynamic lubrication performance,the theories of failure and design of upstream pumping mechanical seal are further developed.展开更多
文摘目的探析在医学检验设备维修管理工作中以PDCA循环管理模式为框架,结合多种管理方法的应用价值。方法确定PDCA循环的步骤,并与根本原因分析(Root Cause Analysis,RCA)、鱼骨图等管理方法与工具联合应用,观察实施综合管理法前后医学检验设备正常使用率、故障率、科室满意度等相关情况。结果实施PDCA管理框架下多种管理方法后,院区医学检验设备使用率从管理前的78.1%增加至管理后的97.0%(χ^(2)=4.02,P<0.05);故障率从16.7%降低至5.8%(χ^(2)=6.25,P<0.05)。科室满意度也从管理前的81%提高至93.5%。结论以PDCA循环管理工作模式为框架,RCA、鱼骨图等多种管理工具的联合应用可有效提升医学检验类设备管理质量。
基金National Natural Science Foundation of China(Grant No.51279067)
文摘Considering the effect of viscosity-temperature relationship and cavitation of micro-scale film,the influencing factors on hydrodynamic lubrication performance of upstream pumping mechanical seal were investigated based on the theory of hydrodynamic lubrication.N-S equation,energy equation,viscosity-temperature equation and vapor transport equation were solved with the finite volume method by using Fluent software,which was performed to analyze the influence of the viscosity-temperature and cavitation effect on hydrodynamic lubrication failure of the film.The research demonstrates that it will lead to the significant difference of the temperature field by considering the coupling of temperature and viscosity.When the film thickness decreases and the rotating speed rises,cavitation regions and viscous friction heat increases,the opening force of the film is also enhanced.However,the growth rate is restricted to the cavitation regions and viscous friction heat,and the opening force begins to decline to a certain extent,and thereby being insufficient to open the surfaces of the seals and leading to the failure of automatic adjustment function and severe wear,lubrication failure occurrs.Through comprehensive research on the influences of viscosity-temperature and cavitation effect on hydrodynamic lubrication performance,the theories of failure and design of upstream pumping mechanical seal are further developed.
