历史查询   



 没有找到相关例句 
 Radial basis function neural network (RBFNN) was introduced to resolute overlapping chromatographic peaks. A genetic algorithm based on sharing niche and possibility solution domain restrain is introduced,and then the two phase genetic algorithm is used to train RBFNN so that it has the capacities of self learning structure and self learning parameters. The relation between column and its effciency is used properly in fitness function of the genetic algorithm for restricting solutions and reducing... Radial basis function neural network (RBFNN) was introduced to resolute overlapping chromatographic peaks. A genetic algorithm based on sharing niche and possibility solution domain restrain is introduced,and then the two phase genetic algorithm is used to train RBFNN so that it has the capacities of self learning structure and self learning parameters. The relation between column and its effciency is used properly in fitness function of the genetic algorithm for restricting solutions and reducing probability of illness solutions greatly. High resolution accuracy can be gotten by this method,and it is very suitable for the analysis of multicomponent overlapping chromatographic peaks. The network structure can be automatically confirmed without human interposition.  将径向基函数 (RBF)神经网络引入色谱重叠峰解析领域·为了使RBF神经网络能适应于色谱重叠峰解析的需要 ,先在RBF神经网络学习算法中引入了基于可行域约束和共享小生境技术的遗传算法 ,而后又用两阶段遗传学习算法训练该神经网络以使其具有了结构自学习和参数优化的能力 ,适应于组分数未知的色谱重叠峰解析的需要 ,最后又将柱效关系引入至遗传算法的适应度函数中 ,极大地限制了解的空间 ,减少了病态解发生的概率·实验表明本方法解析精度较高 ,很适用于多组分色谱重叠峰解析 ,并且具有不需人为干预 ,自动确定网络结构即组分数的优点  A genetic algorithm(Pareto GA), based on a sharing niche technique, is applied to search a Pareto optimal set in a multiobjective optimization problem. On the basis of considering synthetically the belt durability and tire weight, a mathematical model was founded by a three dimensional finite element analysis and indoor durability test. The mathematical model was calculated by means of Pareto GA, and the Pareto optimal set, which was dispersed well, was attained. In order to evaluate the result of optimization,... A genetic algorithm(Pareto GA), based on a sharing niche technique, is applied to search a Pareto optimal set in a multiobjective optimization problem. On the basis of considering synthetically the belt durability and tire weight, a mathematical model was founded by a three dimensional finite element analysis and indoor durability test. The mathematical model was calculated by means of Pareto GA, and the Pareto optimal set, which was dispersed well, was attained. In order to evaluate the result of optimization, the tire with the optimized belt structure was analyzed by the three dimensional finite element analysis technology, and the analysis result was compared with that of the original tire. The result shows that the goal of optimization is achieved.  在轮胎结构设计中应用一种基于共享小生境技术的遗传算法 (简称 Pareto GA ) ,用来求解多目标优化问题的 Pareto最优解集合。在综合考虑轮胎带束层的耐久性和轮胎重量的基础上 ,通过三维有限元分析和室内耐久性试验建立了优化轮胎带束层的数学模型 ,采用 Pareto遗传算法对该数学模型进行求解 ,获得了分散性很好的Pareto最优解集合。为了检验优化的效果 ,应用三维有限元分析技术 ,对优化胎与原胎进行了分析与对比。结果表明 ,该优化过程达到了预期的目的  In the shape optimization design of scroll profiles, norationality of the single object optimization design model is analysed. A general function of conjugate curves describing the mode of scrolls based on Whewell equation is presented on the design of profiles. Alimed at the norationality of the single optimization design, a multiobjective optimization design model is developed. Nondominated sorting genetic algorithm, based on a sharing niche technique, is applied. Finally, an example illustrating the... In the shape optimization design of scroll profiles, norationality of the single object optimization design model is analysed. A general function of conjugate curves describing the mode of scrolls based on Whewell equation is presented on the design of profiles. Alimed at the norationality of the single optimization design, a multiobjective optimization design model is developed. Nondominated sorting genetic algorithm, based on a sharing niche technique, is applied. Finally, an example illustrating the multiobjective shape optimization procedure of scroll profile is given.  在涡旋型线形状优化设计中,分析了单目标优化设计的不合理性。提出了基于多性能因素的Whewell方程形式的通用曲线类型线函数表征形式。建立了多目标形状优化设计的数学模型。应用了基于共享小生境技术的非劣优选遗传算法。给出了涡旋型线形状的多目标优化设计实例分析。  
相关查询  



