查询词典 optimization problem

In this context a genetic algorithm was applied to the four-dimension (4-D) variational data assimilation, which provided a kind of new and effective method in the initial field optimization. The theoretical basis and detailed algorithm were introduced in this paper. At the same time, according to the property of the variational problem itself, we designed the rational genetic coding, operators and parameters.

本文将遗传算法应用于四维变分资料同化问题，提供了一种新的较为有效的NWP初始场优化方法，给出了相应的理论依据和详细算法，并结合变分问题本身的特点，设计了合理的遗传编码、遗传操作和遗传参数。

Variational inequality problem is one of the most important optimization problems, it arises in a widely fields of signal processing, system identification, filter design, robot control, economic science, transprotation science, operational research, and nonlinear analysis fields.

变分不等式问题是一类重要的优化问题，它广泛地出现在信号和图像处理、系统识别、滤波设计、自动控制、经济科学、运输科学、运筹学，非线性分析等领域。

The basic idea of the technique is to formulate the problem into semi-infinite quadratic optimization model with the minimization of the weight vector norm subject to a set of linear functional inequality constraints,wnich ensures unit gain for look direction and the desired sidelobe levels over the corresponding angula...

该约束条件保证瞄准方向为单位增益，并且在给定范围内旁瓣电平满足要求。该方法具有广泛的应用和实际意义。文中给出了设计例子以证明该方法的可行性和实用性。

A bi-level programming model is proposed to describe the optimization programming problem for the optimal velocity with advanced traveler information systems and fuel consumption.

本文当用单层规划念惟树立斟酌ATIS和油耗影响的的最劣快度肯订的劣化模型。

Directed against the problem of stability optimal design on reinforced wainscot of composite materials a kind of mixed optimization algorithm with the combination of mixed penalty function method, Powell method, golden section method, improved coordinates alternation method and genetic algorithm was put forward.

针对复合材料加筋壁板的稳定性优化问题提出了一种用混合罚函数法、Powell法、黄金分割法、改进的坐标轮换法和遗传算法相结合的混合优化算法。

The problem of collecting and delivery shunting of non-through wagon flow on the actinoid private line belongs to a kind of the combinatorial optimization problems.

放射形专用线非直达车流取送车问题属于一类组合优化问题，影响因素较多。

This research which extends the new product supply chain model of Bulter et al. considers issues on global logistics from a more integrated view. First of all, it solves the global logistic settings problem in new product development by means of mixed-integer linear programming. Secondly, it uses the scenario-based robust optimization to lower the risk in the supply chain design. Then it adds the reliability calculation to make up for the gap between the plan and the real operation. At last it calculates and analyzes the quantitative model on the basis of the case data.

本研究延伸Butler等人之新产品供应链模式，考量更完整之全球运筹相关议题，透过混合整数线性规划描述新产品发展时全球运筹配置问题，并利用情境为基础的稳健最佳化以取得低风险的供应链配置，此外加入可靠度的影响，以弥补供应链规划与实际操作的差距，并加入缺货之惩罚成本，最后以范例资料进行计算与分析此数量模式，经由模式计算结果发现本研究规划之结果，相较於原Butler等人之模式有较低的缺货的发生可能性，且所求得之配置整体可靠度皆有所提升。

The policy should reform the wage and non-income distributions in different kinds of administrative monopoly departments, reduced the effect of administrative monopoly power on income distribution. The policy should not only broaden the human capital return, but also reduice the inconsequence income gap between different departments. The income structure\'s optimization should include appropriate ratio of wage and non-wage income, the increacement of the income items\' explicitness, standardization, competitory and its encouraging function. The policy should also establish the management mechanism between the price of administrative monopoly product and the increment of administrative monopoly department\'s capital; prevent the problem of income gap by the welfear depression effect of administrative monopoly department.

行政垄断收入分配差距的治理必须首先针对行政垄断部门类型，改革其工资和非工资性收入分配制度，降低行政垄断因素在收入分配中所起的作用；在解决部门内部人力资本回报差距平均化倾向的同时降低行政垄断和非垄断部门间收入差距非合理扩大的状况；优化收入结构，有效处理工资和非工资性收入之间的关系，增加收入项目的透明度和规范性，提高其竞争性和激励作用；建立行政垄断产品提价与行政垄断部门增资的有效管理机制，防止由于行政垄断部门收入对市场福利侵占而导致的收入差距扩大。

This paper analyzes the current crucial problem in consumption structure and the key factors influencing optimization of consumption structure,based on present situation of rural resident consumpt...

立足于农村居民消费结构的现状，采取定性和定量相结合的方法，分析当前农村居民消费结构中存在的主要问题及影响消费结构优化的主要因素。

Based on the stress analysis to spired axis mechanism,in the aspect of sliding part which smoothes through alveolus intersection, theresearch of parameters optimization, about the middle alveolus of spired axis andthe dimension of sliding part, has been studied. To the problem that the reverseportion at the both sides of spired axis lashed fiercely and fraies quickly, thearticle finely analyses the best curve of alveolus when adding cushiony spring atthe both sides.

在对螺旋轴机构进行受力分析的基础上，从滑块顺利通过齿槽交叉点的要求方面，对螺旋轴中间段齿槽和滑块的尺寸进行了参数优化分析；针对螺旋轴两端曲线齿槽反向段在高速工作时冲击大、磨损快的问题；从减少滑块在齿槽反向段运动的冲击方面，比较分析了圆弧、抛物线、三角函数等曲线作为螺旋轴齿槽反向段曲线的加速度，提出了较优的(来源：ABCab论bf文网www.abclunwen.com)反向段曲线。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。