首先提出了一个名为状态树搜索(State- tree Search) ,用以计算随机流网络可靠性的算法,在此基础上提出了一个改进的算法—SS- MC(State- tree Search & Monte Carlo) .状态树搜索方法通过在一个状态树中搜索所有的有效状态来计算...首先提出了一个名为状态树搜索(State- tree Search) ,用以计算随机流网络可靠性的算法,在此基础上提出了一个改进的算法—SS- MC(State- tree Search & Monte Carlo) .状态树搜索方法通过在一个状态树中搜索所有的有效状态来计算网络的可靠性;而SS- MC方法将分层抽样技术引入状态树搜索过程来实现大规模网络的可靠性评估.仿真结果表明SS- MC方法是有效的,并具有较小的方差.展开更多
In manufacturing process, it is necessary to measure change in CSD (Crystal Size Distribution) with time accurately because CSD is one of the most important indices that evaluate quality of products. FBRM (Focused Bea...In manufacturing process, it is necessary to measure change in CSD (Crystal Size Distribution) with time accurately because CSD is one of the most important indices that evaluate quality of products. FBRM (Focused Beam Reflectance Measurement) can measure CLD (Chord Length Distribution) in line, but CLD is different from CSD because of principle of FBRM. However, if CSD is determined beforehand, CLD can be calculated from the CSD with statistical method. First, when crystal shape is defined from the characteristic crystal size, the matrix of each crystal shape which transforms CSD into CLD in a uniform manner is calculated with Monte Carlo analysis. Characteristic crystal size is added to the variables defining chord length in order to avoid complex integrals and apply the change in crystal shape with characteristic crystal size to the transforming matrix. Secondly, CSD and CLD are actually measured in suspension of acetaminophen in ethanol and suspension of L-arginine in water to demonstrate the validity of 2 matrices. Lastly, these matrices are multiplied by some simple CSD models to test the properties of these matrices and demonstrate the utility of this transformation.展开更多
文摘首先提出了一个名为状态树搜索(State- tree Search) ,用以计算随机流网络可靠性的算法,在此基础上提出了一个改进的算法—SS- MC(State- tree Search & Monte Carlo) .状态树搜索方法通过在一个状态树中搜索所有的有效状态来计算网络的可靠性;而SS- MC方法将分层抽样技术引入状态树搜索过程来实现大规模网络的可靠性评估.仿真结果表明SS- MC方法是有效的,并具有较小的方差.
文摘In manufacturing process, it is necessary to measure change in CSD (Crystal Size Distribution) with time accurately because CSD is one of the most important indices that evaluate quality of products. FBRM (Focused Beam Reflectance Measurement) can measure CLD (Chord Length Distribution) in line, but CLD is different from CSD because of principle of FBRM. However, if CSD is determined beforehand, CLD can be calculated from the CSD with statistical method. First, when crystal shape is defined from the characteristic crystal size, the matrix of each crystal shape which transforms CSD into CLD in a uniform manner is calculated with Monte Carlo analysis. Characteristic crystal size is added to the variables defining chord length in order to avoid complex integrals and apply the change in crystal shape with characteristic crystal size to the transforming matrix. Secondly, CSD and CLD are actually measured in suspension of acetaminophen in ethanol and suspension of L-arginine in water to demonstrate the validity of 2 matrices. Lastly, these matrices are multiplied by some simple CSD models to test the properties of these matrices and demonstrate the utility of this transformation.
