约束条件为加法-取小模糊关系系统的带权min-max规划

定义了目标函数为带权重的min-max规划,约束条件为加法-取小模糊关系不等式系统,研究此模糊关系规划问题的求解思路和方法。当此模糊关系系统相容时,给出了一个求解此模糊关系规划问题的新算法和例子。     

Neutron collimator design of neutron radiography based on the BNCT facility

For the research of CCD neutron radiography,a neutron collimator was designed based on the exit of thermal neutron of the Boron Neutron Capture Therapy(BNCT)reactor.Based on the Geant4 simulations,the preliminary choice of the size of the collimator was determined.The materials were selected according to the literature data.Then,a collimator was constructed and tested on site.The results of experiment and simulation show that the thermal neutron flux at the end of the neutron collimator is greater than 1.0×106n/cm2/s,the maximum collimation ratio(L/D)is 58,the Cd-ratio(Mn)is 160 and the diameter of collimator end is 10 cm.This neutron collimator is considered to be applicable for neutron radiography.     

基于类型Ⅱ区间模糊集NIE约简算法的优化

类型Ⅱ区间模糊集重新提出后被国内外学者广泛研究。一个重要的研究热点在于它的类型约简之上,如何将类型Ⅱ区间模糊集的经过模糊推理之后约简为Ⅰ型模糊集输出是一个重要的课题。针对NIE-WOEI提出的一种约简方法加以改进,大大提高了算法的精确度并且降低算法的时间复杂度。 更多还原