查询词典 optimality principle

By applying the principle of optimality and multiple objective decision-making , and based on the control effect and the control cost of Spodoptera litura, decrease rate of spider and the retrieved yield, 11 pesticide control measures were comprehensively analyzed to find the optimal control measure with highest benefit.

根据不同药剂对斜纹夜蛾的防治效果、防治工本费、对天敌的影响、防治后挽回的产量损失等资料，以净收益最大作为最优防治目标，运用优化理论和多目标决策方法，对 11种药剂防治措施进行了综合分析。

The bioinformatics analysis showed that Ang II and ET, IL-1; PGI2 and ALD; NO and ALD composed of three subsystems and interrelated according to the principle of optimality of complex system, and gradual change regulation was also observed in fatigue stress group.

复杂系统分析结果显示：在疲劳应激组，AngⅡ、IL-1β与ET之间，ALD与PGI2之间，ALD与NO之间分别构成3个相互独立的系统，它们之间均是按照复杂系统的最优化原则发生相互联系，并存在递变规律。

The quadratic optimal control problem of delay discrete-time linear system is proposed with quadratic performance index. It is transformed intoanother problem by using the Principle of Optimality. The direct expressions of theoptimal control sequence and performance index sequence are given by mathematicalinduction.

针对给定的二次型性能指标，提出了时滞离散系统线性二次最优控制问题，并利用最优性原理将该问题进行了转化，进而利用数学归纳法推出最优有记忆饱和控制序列及最优性能指标序列的直观表达式。

Conceptually, we present the principle of optimality for defuzzification and the optimal defuzzification mapping; methodologically, we convert the problem of finding the optimal defuzzification mapping into the one of finding the optimal parameters, suggesting a specific method for its realization—POD method; operationally, we advance that the learning of the parameters for defuzzification can be realized by the learning process using extended Kalman filter.

在概念上，提出了解模糊的优化原理和最优解模糊映射；在方法上，将求最优解模糊映射问题转化为一个参数优化问题，并提出了一个具体实现方法——POD方法；在实际操作上，我们提出可用基于增广Kalman滤波的参数学习算法来完成解模糊过程参数的学习。

Inefficient supervision on the marketing products causes the problem that low quality products elbow with high quality Ones, reducing the producer's benefit expectation. The official-run certification agencies make the monopolistic interest privatized or the producer's interest transfered to their own, which disagree with the principle of Pareto optimality.

认证取费过高，增加了生产者的固定成本；认证后对产品市场监督不力，又使市场上劣品排斥正品，降低了生产者收益预期；认证机构的官商性使国家垄断利益私有化，或生产者利益向认证机构转移，不符合帕累托最优原则。

Under some proper conditions we prove the existence of optimal controls in the class of Lipschitz functions, and obtain an optimality condition looks somehow like Pontryagin's maximum principle for a smooth optimal control function.

在适当的假设条件下，我们证明了状态方程解的存在唯一性和最优控制的存在性；并且根据最有控制函数的光滑性进一步对最优化存在的必要条件进行分析。

This OCVC problem was converted to a typical two-point boundary-value problem according to Pontryagin maximum value principle, and this TPBVP was a first order optimality condition which could be solved by Radau collocation method.

根据Pontryagin极大值原理建立该协调电压控制问题的1阶最优性条件，该条件是一个典型的两点边值问题。在此基础上采用拉道排列法求解这个两点边值问题。

The results indicate that,in the process of knowledge sharing in enterprise under incomplete information,if employees are risk neutral,then he should take all risk and become real principle,there is no incentive;if employee is risk evadable,then enterprise should design incentive mechanism by the pattern of fixed pay plus profit distribution in order to employee to take some risk,Pareto optimality isn't reachable.

研究结果表明：在不完全信息条件下的企业内部知识共享过程中，当员工为风险中性时，企业无需对员工进行激励，员工会承担全部风险实际充当委托人角色；当员工为风险规避时，企业应采用固定报酬加利润分成方式设计激励合同，使得员工承担一定风险，此时帕累托最优合同无法实现。

The optimal dynamic unlimited excess of loss reinsurance using the mean-variance premium principle is studied. Following Hipp's theory, a corresponding Hamilton-Jacobi-Bellman equation is obtained to minimize the ruin probability, and existence and optimality of the solution is proved.

考虑具有均值－方差保费原理的超额损失再保险的最优策略问题，沿用Hipp的理论框架，以最小化破产概率为目标，得到一个Hamilton-Jacobi-Bellman方程，并证明了其解的存在性及最优性。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。