Application of Equivalent Numerical Method Based on Entropy Weights in Water Environmental Quality Assessment 基于熵权的等效数值法在水环境质量综合评价中的应用
The distributions of the strain and the stress of the pipe are obtained by the numerical computation. Results Genetic algorithm optimization of beam weights can produce highly conformal dose distributions within a clinically acceptable computation time. 数值计算结果给出了管材在不同的拔制阶段的应变与应力分布。结果用遗传算法优化射野权重能够在一个临床可接受的计算时间内得到较高适形度的剂量分布。
In order to increase the detection speed, by using mixing particle sets to express the posterior probability distribution and adopting the Monte Carlo numerical methods to calculate the mixing weights, the fast fault detection algorithm is proposed based on the estimate window method. 为了提高故障检测的速度,采用混合粒子集表达后验概率分布,并由MonteCarlo数值方法优化得到各粒子集的加权值,据此提出了基于估计窗的快速故障检测算法。
Adopting barycentric rational interpolation collocation method to solve differential equations has the advantage of simple calculation formula, high precision, numerical stability and good adaptability to calculate nodal etc. The work of this paper includes discussion of the selection of interpolation points and barycentric weights. 而采用重心有理插值配点法求解微分方程,具有计算公式简单、精度高、数值稳定、计算节点适应性好等优点。