numerical optimization造句

• Numerical optimization in a structured unstructured grid
  非结构网格中的数值优化计算
• Numerical optimization of circulation distribution on marine propellers
  船舶螺旋桨叶片环量的数值优化
• Vanderplaats , g . n . , numerical optimization techniques for engineering design , mcgraw - hill ( 1993 )
  徐业良，工程最佳化设计，国立编译馆( 1995 )
• A comparative study on some typical improved models of bp networks , which based on gradient descent and numerical optimization are proposed
  全局优化改进策略从基于网络模型的优化和基于网络算法的优化两个方面考虑。
• The orthogonal design and least square methods were used to fit the response surface , and the optimal one was obtained by the numerical optimization program dot
  根据正交试验设计法安排每个试验点，最小二乘法拟合响应面，利用dot程序得到该响应面的最优值。
• Backpropagation model of the ann is used in knowledge storage and the leverberg - marquardt algorithm based on numerical optimization is used in training the neural networks
  采用了基于数值优化的leverberg - marquardt (简称lm )算法，对网络进行训练，完成知识库的组建。
• The design method proposed in this paper is , in principle , based on the potential - stream function inverse method , using numerical optimization to obtain optimized blade profiles
  本文是在反方法叶型设计的基础上，采用优化方法有效调节给定的初始速度分布来获得优化叶型。
• Studies have shown that the computing efficiency and the convergence rate of mec are generally higher than those of gas by more than 50 % in the numerical optimization
  研究已经表明， mec的计算效率和收敛性能比标准ga及其它进化算法一般要高50以上，说明mec是一种高效的算法。
• At the temperature level of - 60 ? , verious experiments are conducted on the cycles of lhr , acr _ i , acr _ r , with two component mixed refrigerants . the results are consistent with that of the numerical optimization
  在即温度位，对利用二元混合工质组元的mr 、 “凡i和北lr循环分别进行了实验优化研究。
• This paper is devoted to some numerical optimization methods and optimization models for solving practical problems in real world . the methods we concern with are the conjugate gradient algorithms , evolutionary algorithms and goal programming
  本文对近年来备受关注的几类最优化方法(共轭梯度算法、进化算法和目标规划法)的理论性质及应用进行了研究，主要研究成果如下： 1
• An optimizing method with constant pressure ratio is initially applied to the mixed refrigerant cycle . this method greatly simplifies the calculation of the cycle , and is helpful in numerical optimization of various cycles , especially in the complex cycles
  本文首次采用混合工质制冷机循环的定运行压比优化方法，大大减少了循环的计算量，为各种混合工质制冷机循环，尤其是复杂循环的数值优化奠定了基础。
• Blade design optimization problems are multimodal and discontinuous problems , the use of gradient - based numerical optimization algorithms perform inefficiently and drop into local minimum prematurely . hence , the exploratory algorithms such as gas are required for global exploration . 4
  4 .通过rsm方法拟合复杂的响应关系，平滑设计空间“噪声” ，能够防止数值优化方法陷入局部极值点，获得良好的鲁棒性和适应性。
• On the basis of kinematics analysis and model transformation , an error equation of the robot kinematics parameter is established with numerical optimization , and the optimal design for kinematics parameter is realized , which effectively increases the repositioning precision of the robot
  在运动学分析和模型变换的基础上，运用数值优化技术建立了机器人运动学参数的误差方程，实现了运动学参数的优化设计，有效提高了机器人的重复定位精度。
• At first , based on the simple genetic algorithm , an improved ga which adopts a combination of emigration policy and adaptive operator is presented . results of numerical optimization show that the improved ga is effective on preventing premature problem
  本文在基本遗传算法的基础上首先研究了浮点编码遗传算法在数值优化中的应用，通过引进“移民策略”和自适应算子相结合的方法，改进了基本遗传算法在后期进化缓慢的问题，极大地减少了早熟性收敛的现象。
• In this paper , a mmc heat sink is fabricated and processed according to the results of numerical optimization of a mmc heat sink firstly , then thoroughly studies its flow characteristics and heat transfer characteristics by experimental methods , and de - ionized water and surfactant aqueous solution are used as working fluids
  本文根据数值模拟优化结果设计和制作了歧管式微通道热沉,并采用实验的方法,以去离子水和表面活性剂水溶液作为实验工质,对热沉进行了流动特性与传热特性的实验研究。
• The numerical optimization and the detailed exergy analysis of the cycles approved the conclusions rendered in the analysis of the cycle ' s features . we also obtained the optimum compositions of the mixture refrigerant for the rectification cycle under the pressure ratio of 8 , at the temperature levels of - 60 ? , - 80 ? , - 100 * c , and - 120 ? respectively . the method of equivalent entropy generation is initially used in this study
  通过对混合工质节流制冷机诸循环进行的数值优化和较为详尽的循环粗(火用)分析，验证了循环的特性分析中所得到的主要结论，同时得到了压比为8 ，温度为- 60 、 - 80 、 - 100和- 120等四个温度位的混合工质精馏循环最优混合工质成浙江人学博十学位论文摘要分。