查询词典 optimal path

The optimal design of layout programming of RRMS is explored. The mathematical programming model based on matroid is established and the greedy method is selected serving as the optimal method. The application program based on this method is also developed and compiled.

摘 要：研究探索了快速可重组制造系统布局规划中的优化设计问题，建立了基于拟阵的数学规划模型，通过对比选取贪馋算法作为优化算法，并编制开发了此算法的应用程序。

As independent economic entities, the enterprises of the Supply Chain pursue maximal profit all the time, the buyer need to choose an optimal ordering strategy, and the supplier need to choose an optimal quantity discount.

供应链成员企业作为独立的经济实体，追求自身利益最大化，需求方考虑采取何种订货策略以降低成本，获得最大利润；供应方需要做出采取何种批发价格策略的决策，以使自己的收益最大。

The ratio of stock right calculated according to venture investment experiential principles is sound and easy to accept. It can give quantitative analysis support to the venture investment practice.(6)According to the theory of the real option, the author derived value formula of the real option fixed price and investment criterion. Based on above, the paper further research for optimal investment strategy of real option in monopolizing and competition under asymmetry information, and built the value model of real option for the investor and administrator by using the theory of the principle trust-agent Meanwhile, the solution of real option optimal investment and the shift value are derived applying the maximal principle .

针对高新技术企业发展的特点：研制周期长、投资费用高、每阶段风险水平特征差别大，运用实物期权理论与计算方法，通过研究建立嵌入期权现金流量图深入分析计算了企业发展中风险投资的最优策略、股权占有比例问题，对不确定性问题由于采用了有关实物期权计算公式，所以计算结果比基于传统的现金流量图的NPV方法更加客观、科学，同时按照风险投资经验法则计算出的股权占有比例合理易于接受，可为企业风险投资实践活动提供数量分析支持。

The so-called maximum principle is the necessary condition for an optimal control, one of the most principal and most commonly used approaches when facing a optimal control problem.

最大值原理，即最优控制满足的必要条件，是处理最优控制问题时最重要也是最常用的方法之一。

To overcome the local optimal problem existing in some maximum likelihood DOA estimation algorithms, improve the estimation accuracy, a global optimal solution of nonlinear maximum likelihood DOA estimation is obtained by real-valued genetic algorithm proposed in this paper.

所提出的实数遗传算法由含实数域结构和目标函数信息的实数交叉和变异算子构成，是较理想的获取非线性实变量函数全局最优解的方法。

Because the optimal triangle fuzzy numbers and optimal fuzzy vector which were used to replace the maximum sets and the ideal solution may be got by observation, not need the complex comparison process of fuzzy triangle fuzzy numbers.

研究发现，本文提出的模糊灰色关联分析法以可通过观察而直接得到的最优三角模糊数和最优模糊向量分别代替了以往的模糊极大集和模糊理想解，避免了模糊数比较的复杂过程，提高了模糊综合评价的决策效率。

The results show that there will be slight decrease of the control efforts when the mean absolute value or the root mean square value of the optimal control force is taken as the maximum designed control force, while the maximum control force of MR damper can be decreased by 85% compared with the maximum optimal control force. The decrease in the designed control force can not only significantly increase the capability of MR dampers, but also reduce the dimension of MR dampers for pratical application in engineering.

研究表明，当设计值取最优控制力的平均绝对值或均方根值时，MR阻尼器的最大控制力比最优控制力的最大值降低了85%，而控制效果降低不多，可以满足对结构的控制要求；降低最大控制力设计值后，不但可以充分发挥MR阻尼器的出力性能，而且可以缩小MR阻尼器的设计尺寸，便于工程应用。

It is improved to solve the prematurely and stagnation problems of traditional Ant Colony Optimization in the paper. First, mean value method is used to update pheromone to avoid premature convergence which leads to non-globally optimal solution. Second, Pheromone is updated by Best Track to speed the rate of convergence which will help to avoid locally optimal solution.

本文针对基本蚁群算法比较容易陷入早熟和停滞，对现有蚁群算法的信息素更新规则进行了改进，一是采用平均值法更新信息素，避免算法过早收敛于非全局最优解；二是采用最佳路径法更新信息素，可加快收敛速度，并使算法跳出局部最优解。

An optimal power flow based learning model for two-layer medium- and long-term optimal bidding strategy is proposed.

文章提出了以最优潮流为基础的双层中长期最优竞价策略学习模型。

Both of the thermophiles were motile by means of lophotrichous flagella and had high growth rate on medium containing cellulose. Optimal growth occured at 60℃ for the two thermophiles and at PH 7. 5 for Y, PH 7. 37. 5 for W strain. Y strain produced yellow pigment in cellulose medium and had yellow-colored, round or watery colonies in cellulose agar. The colonies of W strain were white -colored and similar in form to that of Y strain. The mesophile, Clostridium sp. B, was motile with peritrichous flagella. The colonies grown on cellulose agar were white and round with slightly undulate margins. The optimal growth temperature and PH of B strain were 40℃ and 7. 0-7. 2, respectively. All of the three Clostridia fermented varieties of carbohydrates and in cellulose media produced the similar end-products: CO〓H〓, ethanol and acetic acid. The DNA compositions were 34 mol% for Y and B, 35 mol% for W strain.

嗜热菌y与w在含纤维素的培养基中生长迅速，其最适生长温度均为60℃；最适PHy为7.5，w为7.3-7.5.y菌在纤维素培养基中产生黄色，在纤维素琼脂中菌落为黄色并呈圆形或流动粥样。w菌落为白色，但形状与y菌类似，嗜温菌B在纤维素琼脂上菌落为白色，圆形，边缘呈微小波状，最适PH与温度分别为7.0-7.2和40℃，三支菌都可发酵多种碳水化合物，且在纤维素培养基中产生同样的产物：CO〓H〓，乙醇和乙酸，三者DNA组成分别是y为34mol%，w 35mol%，B 34mol%。

The role of the environment is very important.

的作用，环境是非常重要的。

At that time, the High Court of England and Wales Court of Queen's Bench president of William Murray, Lord Mansfield in June 22, 1772 ruling:"No matter then there is the inconvenience, but there must be a decision, I can not say that this case under the law in England are permitted or authorized; are so black should be released."

当时的英格兰及威尔士高等法院王座法庭院长William Murray， Lord Mansfield于1772年6月22日宣判：「无论有那麽不便，但总要有个决定，我不能说这件案在英格兰法律之下是准许或认可；所以黑人是应该被释放。