针对事件间隔时间(Time Between Events,TBE)服从威布尔分布的高质量过程,设计WMedian-EWMA控制图监控过程的小偏移.首先,给出WMedian-EWMA控制图的设计方法及控制限参数的估计方法;其次,通过平均运行链长的均值AARL (Average of Averag...针对事件间隔时间(Time Between Events,TBE)服从威布尔分布的高质量过程,设计WMedian-EWMA控制图监控过程的小偏移.首先,给出WMedian-EWMA控制图的设计方法及控制限参数的估计方法;其次,通过平均运行链长的均值AARL (Average of Average Run Length)和平均运行链长的标准差SDARL(Standard Deviation of Average Run Length)分析了参数估计对所设计的控制图性能的影响,结果表明当形状参数β≥1时,所设计的控制图受参数估计的影响小,对过程偏移有较好的探测能力;最后,通过算例说明所设计的控制图在实际中的使用.展开更多
The contribution of the two particles Fock states for the production of a heavy quark in proton-pion and photon-pion collisions is studied. It is shown that the effect depends strongly on the produced heavy quark mass...The contribution of the two particles Fock states for the production of a heavy quark in proton-pion and photon-pion collisions is studied. It is shown that the effect depends strongly on the produced heavy quark mass, and the choice of the factorization scale.展开更多
文摘针对事件间隔时间(Time Between Events,TBE)服从威布尔分布的高质量过程,设计WMedian-EWMA控制图监控过程的小偏移.首先,给出WMedian-EWMA控制图的设计方法及控制限参数的估计方法;其次,通过平均运行链长的均值AARL (Average of Average Run Length)和平均运行链长的标准差SDARL(Standard Deviation of Average Run Length)分析了参数估计对所设计的控制图性能的影响,结果表明当形状参数β≥1时,所设计的控制图受参数估计的影响小,对过程偏移有较好的探测能力;最后,通过算例说明所设计的控制图在实际中的使用.
文摘The contribution of the two particles Fock states for the production of a heavy quark in proton-pion and photon-pion collisions is studied. It is shown that the effect depends strongly on the produced heavy quark mass, and the choice of the factorization scale.