本研究在联影攻关研制国产新一代全数字PET/CT中，为全数字高分辨 PET 探测器核心部件的自主研发及 PET/CT 系统架构集成提供可靠性设计与失效分析工作。完成了关键部件结构可靠性设计工作，使用FMEA方法分析关键部件的失效模式，计算风险顺序数，对后果严重度大于9或者风险顺序数大于100的故障模式提出改进措施。完成了PET探测器HALT测试、CT探测器仿真测试以及CT探测器模块环境测试等，验证
This paper studies the life-cycle labor supply of three cohorts of American women, born in the 1930s, 1940s, and 1950s. We focus on the increase in labor supply of mothers between the 1940s and 1950s
This paper provides a novel model that is more relevant than the well-known conventional distributions, which stand for the two-parameter distribution of the lifetime modified Kies Topp–Leone (MKTL) m
