发动机关键特性对生产线过程能力要求较高,在线测量技术与统计过程控相结合,可以有效探测异常波动,提升产品一致性。本文主要研究在线测量设备的测量系统分析(Measure System Analyse,简称MSA)方法流程,分别从分辨率、测量系统分析方法...发动机关键特性对生产线过程能力要求较高,在线测量技术与统计过程控相结合,可以有效探测异常波动,提升产品一致性。本文主要研究在线测量设备的测量系统分析(Measure System Analyse,简称MSA)方法流程,分别从分辨率、测量系统分析方法研究、测量设备对过程能力的影响及测量设备稳定性分析监控等方面进行分析,判断在线测量设备是否满足测量要求。本文旨在提供一个完整的在线测量设备的测量系统分析流程,为其他在线测量设备提供借鉴经验。展开更多
Semi-quantum secret sharing(SQSS) is an important branch of semi-quantum cryptography, and differs from quantum secret sharing(QSS) in that not all parties are required to possess quantum capabilities. All previous SQ...Semi-quantum secret sharing(SQSS) is an important branch of semi-quantum cryptography, and differs from quantum secret sharing(QSS) in that not all parties are required to possess quantum capabilities. All previous SQSS protocols have three common features:(i) they adopt product states or entangled states as initial quantum resource;(ii)the particles prepared by quantum party are transmitted in a tree-type way; and(iii) they require the classical parties to possess the measurement capability. In this paper, two circular SQSS protocols with single particles are suggested,where the first one requires the classical parties to possess the measurement capability while the second one does not have this requirement. Compared with the previous SQSS protocols, the proposed SQSS protocols have some distinct features:(i) they adopt single particles rather than product states or entangled states as initial quantum resource;(ii)the particles prepared by quantum party are transmitted in a circular way; and(iii) the second protocol releases the classical parties from the measurement capability. The proposed SQSS protocols are robust against some famous attacks from an eavesdropper, such as the measure-resend attack, the intercept-resend attack and the entangle-measure attack,and are feasible with present quantum technologies in reality.展开更多
文摘发动机关键特性对生产线过程能力要求较高,在线测量技术与统计过程控相结合,可以有效探测异常波动,提升产品一致性。本文主要研究在线测量设备的测量系统分析(Measure System Analyse,简称MSA)方法流程,分别从分辨率、测量系统分析方法研究、测量设备对过程能力的影响及测量设备稳定性分析监控等方面进行分析,判断在线测量设备是否满足测量要求。本文旨在提供一个完整的在线测量设备的测量系统分析流程,为其他在线测量设备提供借鉴经验。
基金Supported by the National Nature Science Foundation of China under Grant No.61871347the Natural Science Foundation of Zhejiang Province under Grant No.LY18F020007
文摘Semi-quantum secret sharing(SQSS) is an important branch of semi-quantum cryptography, and differs from quantum secret sharing(QSS) in that not all parties are required to possess quantum capabilities. All previous SQSS protocols have three common features:(i) they adopt product states or entangled states as initial quantum resource;(ii)the particles prepared by quantum party are transmitted in a tree-type way; and(iii) they require the classical parties to possess the measurement capability. In this paper, two circular SQSS protocols with single particles are suggested,where the first one requires the classical parties to possess the measurement capability while the second one does not have this requirement. Compared with the previous SQSS protocols, the proposed SQSS protocols have some distinct features:(i) they adopt single particles rather than product states or entangled states as initial quantum resource;(ii)the particles prepared by quantum party are transmitted in a circular way; and(iii) the second protocol releases the classical parties from the measurement capability. The proposed SQSS protocols are robust against some famous attacks from an eavesdropper, such as the measure-resend attack, the intercept-resend attack and the entangle-measure attack,and are feasible with present quantum technologies in reality.
