优选法

yōu xuǎn fǎ
  • optimization;optimum seeking method
优选法优选法
优选法 [yōu xuǎn fǎ]
  • [optimum seeking method;optimization]对生产和科学试验中提出的问题,根据数学原理,通过尽可能少的实验次数,迅速求得最佳方案的方法

优选法[yōu xuǎn fǎ]
  1. 并用模糊优选法将证券组合多目标优化转化为单目标优化。

    Multiple-objective optimal problem is converted into simple objective optimization by using the fuzzy optimum seeking method .

  2. 提出在利用延时相乘法得到LFM信号的初始调频率的前提下,将优选法和分数阶Fourier变换相结合来提高参数估计的精度以及减少搜索的运算量。

    Under the premise of getting the initial tone frequency by delay-phase multiplication , this paper combine optimum seeking method and the fractional Fourier transform to improve the precision of parameter estimation and reduce the amount of search operation .

  3. 两种精子优选法对精子DNA结构完整性及其它参数的影响

    The effect of two sperm selection technique methods on structural integrity of sperm DNA and other factors

  4. 本文论述逻辑增长曲线模型的参数求解方法优选法,并给出计算程序的NS图。

    The article is about the method of solution parameters value of logistic model-optimization , it also describes the N-S graph of computer program .

  5. 本文比较了不同浓度的糖蜜、马铃薯、麸皮、酵母膏以及温度和pH等因素对松茸菌丝体生长的影响。应用多因素试验正交优选法分析了影响松茸菌丝体生长的因素。

    The effect of sirup , extract of potato and bran , yeast extract , temperature and pH on the growth of filaments of Tricholoma matsutake was determined by orthogonal test .

  6. 介绍了可用于计算机仿真的优选法(optimizationmethod)、优选的数学模型与方法优选过程和数学模型样例等,以及应用优选法实现建模参数最优化技术。

    Optimization method , optimized mathematical model , process of method optimization , and some examples of mathematical model used in computer simulation are presented in this paper , and the optimization technique for parameters of making model by optimization method is introduced .

  7. 本文利用无量纲参数、变分-有限元法和优选法来确定任意折射率剖面光纤LP(11)模的归一化截止频率Vc。

    Variation-finite element and optimum-seeking methods for determination of the normalized cut-off frequency Vc of the Lpa anode in an optical fiber with dimensionless parameters are presented in this paper .

  8. 根据回归方程利用统计优选法寻优,确定了最优水解条件:温度为58℃,pH值为7.4,酶底比为0.7%。

    The statistical optimization was used to optimize by the regression equation . The optimum hydrolytic conditions were as follows : the temperature was 58 ℃, pH value was 7.4 , and the enzyme-substrate ratio was 0.7 % .

  9. 通过计算机模拟寻优,根据回归方程利用统计优选法寻优,确定最优酶解条件:pH值5.3,反应时间7h,反应温度51℃。

    The optimum hydrolytic conditions were as follows : pH value was 5.3 , and the time was 7 h and the Temperature was 51 ℃ .

  10. 在此基础上进一步运用正交试验方法对CO2吞吐参数进行了优化,通过计算表明用正交试验优选法得到的优化方案比单因素敏感性分析所得的优化结果更为合理。

    At the same time , the parameters of CO_2 huff and puff were optimized by the orthogonal experiment method . Research indicates , the scheme by the orthogonal test optimization is better than by traditional method .

  11. 讨论了根据内聚能和体积弹性模量实验值,用优选法中黄金分割法,计算立方金属Morse势的方法。

    A method to calculate the Morse potential of cubic metals according to golden section method from the observed values of cohesive energy and bulk modulus has been studied .

  12. 本文提出用O.628优选法和SAS/STAT软件NLIN模块中的DUD法,对Logistic曲线中的参数k,a和b可得到最佳估计。

    In this paper , using the Mothed of Optimization and Nonlinear regression analysis to analysed the parameter K , a and b in Logistic curve with the SAS / STAT Software . The results showed that it is best estimation .

  13. 本文尝试采用规范化正交优选法(ROLS)来选取径向基函数的中心,构造了预报精度大幅提高的碳含量动态控制模型。

    This paper adopts ROLS to select the centers of RBF NN , and constructs an effective dynamic control model of carbon content .

  14. 将遗传算法与正交优选法结合,用来训练径向基函数(RBF)神经网络,并对基函数宽度进行自动地调整,得到了一种训练RBF神经网络的新方法。

    Based on the combination of genetic algorithms and orthogonal optimum seeking method , along with the modification of the width of the radial basis function ( RBF ) a novel nonlinear dynamic system modeling approach is proposed to correctly determine the centers of the RBF .

  15. 本算法克服了SCA算法对聚类中心初始值选取的不足,给出了最大频度与类内最小距离最大相结合的方法&初始值优选法。

    The algorithm can overcome the shortcomings of the seeking method of initial value of the clustering center of SCA algorithm , and gives a method of combining maximum frequency degree with maximizing minimum discrepancy , that is an optimum seeking method of initial value of clustering center .

  16. 方法:分别应用上游法、Percoll密度梯度离心法及双曲管优选法处理精液,观察优选前后精子染色体畸变率、精子性染色体比例及超微结构相对正常的精子百分率。

    Methods : The selection techniques of swim-up , Percoll density gradient centrifugation and doule-flection tube were used to observe sperm chromosome abnormality rate , sex chromosomal ratio and the percentage of spermatozoa with relatively intact head ultrastructure .

  17. 本文用美学的观点研究了黄金数和与之有密切关系的Fibonacci数列,并给出了大量应用Fibonacci数列的例子,说明了它在优选法上的重要意义。

    This article investigates golden number and Fibonacci sequence , which is closely related to it , in an aesthetic view . We present many examples to illustrate the applications of Fibonacci sequence and explain its significant meaning in the method of optimal selection .

  18. 优选法在选择刀具角度中的运用

    Application of Optimized Method in Selection of Cutting - tool Angle

  19. 高均匀度超导螺线管磁体设计中的优选法

    The optimum seeking method for designing the highly homogeneous superconducting magnet

  20. 网络计划中多资源均衡的模糊优选法

    Fuzzy weight optimal choice method of resource leveling in network planning

  21. 团簇的第一原理分子动力学计算研究:价键优选法

    First-principle molecular dynamics study of clusters : optimum valence bond scheme

  22. 多层次模糊优选法确定变电所主接线的应用

    Application of Multi-hierarchical Fuzzy Method iii Seeking Substation Main Wiring Plan

  23. 对若干采矿方法数值优选法的评价与优选

    Evaluation and optimization of some numerical optimization methods of mining method

  24. 本研究采用优选法,选择出具有代表性的介词进行研究;

    Typical prepositions were selected by the method of optimal selection .

  25. 体育试验的单峰函数优选法研究

    Study on single peak function optimum seeking method of physical experiment

  26. 电流相互作用平滑系数的优选法

    Interaction Law of Electric Current An Optimization of the Smooth Coefficient

  27. 电力短期负荷时间序列混沌相空间重构参数优选法

    Parameter Optimization of Phase Space Reconstruction for Short-term Load Time Series

  28. 基于模糊优选法的产品配置设计方法研究

    Research on Product Configuration Design Method Based on Fuzzy Optimum Selection

  29. 天然气管网系统输送方案模糊物元优选法

    Fuzzy Matter-Element Optimum for Transportation Programs of Natural Gas Network Systems

  30. 现代变型监测布网方案的非线性多目标决策优选法

    Non-linear multi-objective decision optimization method of modern variable model monitoring layout scheme