查询词典 optimal control

This dissertation systematically investigates the theory and method of optimal design and data quality control in position traverse control network.

本文较系统地研究了阵地导线网的优化布设和数据质量控制的理论和方法。

Considering a control problem of failure prone production systems with demand uncertainty, an optimal trinal hedging point control policy was proposed.

针对具有不确定需求层的不可靠生产系统的生产控制问题，提出一个具有最优三层界点的控制策略。

Keywords slender workpiece;variable velocity;optimal adaptive control;neural network;prediction;fuzzy control

细长轴；变速；优化适应控制；神经网络；预测；模糊控制

In order to take effective dust control measures of transshipment point of coal washery,it is necessary to carry out the optimal designs of dust control schemes.

为了对选煤厂皮带转运点粉尘污染提出有效治理措施，需要对除尘设计方案进行优化设计。

In chapter six, the vender markov process and renewal process are used to analyze deteriorating items inventory control .The steady balanceable target function is established and the optimal inventory control strategy is given.

第六章引入向量马氏过程和更新过程对随机易腐物品的最优存储进行了基本分析和探讨，给出了模型从稳态下的目标函数，并提出了最优的库存控制策略。

The main achievements of the project are as follows: 1 the hypothesis that a decrease in seed mass causes an increase in mean dispersal distance has been tested based on the experiments of weed dispersal by wind. The experimental results partly support the hypothesis. The results will help farmers to make an optimal strategy of weed control; 2 a statistic method for inferring probabilistic distribution function of a random variable has been developed, by which probabilistic distribution functions of weed species dispersal have been determined; 3 the reproduction structure of Bromus sterilis has been studied; 4 a more complex CA model with 25 neighborhood cells were built, which can simulate spread of a weed population. This work promotes developments in both theory and application of CA models; 5 the "mean law" in weed control has been proposed. Accordingly, the algorism of patch spring may be calibrated; 6 the "patch" and "true patch" have been mathematically defined so that herbicide can be efficiently applied; 7 simulation validates that initial configurations of weed will affect dispersal of its population and strategies of controlling it, or its distribution patterns affect its dispersal progresses.

主要完成的工作和取得的成果有：1）用实验证实了重量较轻的杂草种子并不一定飞得比较重的远，其结果有助于农民制订杂草的优化控制策略；2）发展了一种推断随机变量分布函数的统计方法并用它来获得了几个杂草种的扩散分布函数；3）对杂草Bromus sterilis的繁殖结构进行了研究；4）建立了一个具有25邻的较复杂的能模拟杂草扩散的CA模型，并在理论和应用方面促进了CA模型的发展；5）在杂草控制方面提出了&平均法则&，据此可对按块施药方法进行校正；6）精确地定义了&块&和&真块&以便在杂草控制中能更有效地使用除草剂；7）模拟证实杂草种群的初始配置影响其扩散和控制策略，或者格局影响过程。

This paper put forward a kind of optimization method based on genetic algorithms for bidirectional flow laterals diameter on sloping field. This method could get the optimal diameter and control criterion of irrigated quality such as average flow and uniformity. Meanwhile, the running control parameter such as the optimum crotched position and intake pressure of laterals could be determined.

提出了一种基于遗传算法的坡地双向毛管管径的优化方法，能获得毛管最优管径和灌水器平均流量、灌水均匀度等灌水质量控制指标，同时能确定毛管最佳分流点位置和毛管进口压力等运行控制参数。

Based on the theory of associated and decentralized control, this paper introduces the modeling method of AC/DC power system and control law deriving, which can be realized dispersedly and guarantee the stability of the system with optimal performance.

摘要介绍了交直流电力系统关联测量分散励磁控制的建模方法和控制规律的求取，所得控制规律既可以分散实现，又能保证全局稳定且性能最优。

Based on the theory of associated and decentralized control, this paper introduces the modeling method of AC/DC power system and control law deriving, which can be realized dispersedly and guarantee the stability of the system with optimal performanc

摘要介绍了交直流电力系统关联测量分散励磁控制的建模方法和控制规律的求取，所得控制规律既可以分散实现，又能保证全局稳定且性能最优。

In this paper ,the comparison and analysis of landfill gas migration simulation are presented in assumptions of with landfill gas control system and without landfill gas control system ,and the optimal pumpage of gas pumping well is calculated ,thus the ratio of landfill gas collection is given correspondingly.

利用本数值模型对无控制系统和有控制系统时释放气体运移进行了对比模拟分析，给出了有水平气体控制系统时的优化排气量并得出相应的释放气体收集率，可为填埋场释放气体控制系统的设计及环境影响预测和评价提供理论依据。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。