基本条件

The basic conceptions and primary characteristics are introduced in this paper. This paper discuss some primary factor when genetic algorithm applied on optimal design, for example the mathematical model the constrained problem、the initial population and the controls parameter of genetic algorithm .

在广泛阅读文献和调研的基础上，本文对遗传算法及其在结构优化设计应用中的相关内容进行了分析和综合，对结构优化设计的基本概念、主要特点进行了介绍，对遗传算法应用于结构优化设计时的数学建模、约束条件处理、初始种群的产生及其遗传算法控制参数的选择几个关键因素作了概要的分析与研究。

Based on a great many literature, this paper analyzes and summarizes the genetic algorithm for the design of structural optimization. The basic conceptions and primary characteristics are introduced in this paper. This paper discuss some primary factor when genetic algorithm applied on optimal design, for example the mathematical model、the constrained problem、the initial population and the controls parameter of genetic algorithm Aimed at the characteristic of structural optimization and finite-element analysis, this paper accomplishes the optimal program based on the simple genetic algorithm.

在广泛阅读文献和调研的基础上，本文对遗传算法及其在结构优化设计应用中的相关内容进行了分析和综合，对结构优化设计的基本概念、主要特点进行了介绍，对遗传算法应用于结构优化设计时的数学建模、约束条件处理、初始种群的产生及其遗传算法控制参数的选择几个关键因素作了概要的分析与研究。

Based on a great many literature, this paper analyzes and summarizes the genetic algorithm for the design of structural optimization. The basic conceptions and primary characteristics are introduced in this paper. This paper discuss some primary factor when genetic algorithm applied on optimal design, for example the mathematical model、the constrained problem、the initial population and the controls parameter of genetic algorithmAimed at the characteristic of structural optimization and finite-element analysis, this paper accomplishes the optimal program based on the simple genetic algorithm.

在广泛阅读文献和调研的基础上，本文对遗传算法及其在结构优化设计应用中的相关内容进行了分析和综合，对结构优化设计的基本概念、主要特点进行了介绍，对遗传算法应用于结构优化设计时的数学建模、约束条件处理、初始种群的产生及其遗传算法控制参数的选择几个关键因素作了概要的分析与研究。

Such conditions include: glomerulonephritis, essential mixed cryoglobulinemia, and porphyria cutanea tarda.

这些条件包括：肾小球肾炎，基本混合冷球蛋白血症，和迟发性皮肤卟啉症。

A Study on Fraunhofer Double-Slit Diffraction by Applying Simulation Technology;2. Based on Kirchhoffs theory,the approximate intensity formulas of double-slit diffraction of Gaussian Beam is derived under paraxial approximation with power series expansion methods.

依据基尔霍夫衍射理论，利用幂级数展开的方法推导出旁轴条件下高斯光束双缝衍射的近似光强计算公式，并通过数值计算对双缝衍射的基本特性进行了讨论，得出了与其他文献一致的结论，得出了高斯光束下的双缝衍射极小值点比平行光束双缝衍射的极小值点向外移，观察屏中心光能变小；光强分布可由激光斑在衍射屏处的参数调制的结论。

And because high temperature high-pressure water is flowing and can be real-time renewed, experiment condition can be ensured to be stable and synchronized with unit's practical operating condition.

测试装置内的高温高压水是流动的，实时更新，可保证试验条件的基本稳定和与机组实际运行工况的同步，用于金属在该体系下的腐蚀研究。

In the Chinese history,there were certain standard dispositions thatexisted in the institution arrangement of the Chinese autocracy,which required thatthe monarch should be moral persons,they should get their power through theprocedure and the means of primogeniture,and the monarchical power was arrangedby the Heaven and fate.

文章指出，在中国的专制政体的制度安排中存在着这样一种规范结构，它包括君主必须具备起码的功德、必须按照嫡长子继承制的程序与方式取得权位，以及让人相信君权是天命或命运的安排等基本的条件和要求。

A new cyclic constitutive model for sands which can describe the deformation behavior of sands under combined variation of principal stress axes and magnitudes was developed based on the above physical fundamentals. And its effectiveness under the complex stress paths including cyclic rotation of principal stress axes is verified by a good comparison of model simulation with test results for sands.

2基于对应力主轴循环旋转条件下砂土的基本变形规律的认识，吸收和借鉴已有弹塑性本构模型研究成果中的合理概念和建模方法，建立了一个可合理描述应力主轴循环旋转效应及主应力幅值大小与应力主轴方向循环耦变效应的砂土弹塑性本构模型，并对该模型在包含应力主轴旋转的复杂循环应力路径下的有效性进行了验证。

Aimed at solving the problem that high content of unburned carbon in fly ash is unfavorable for its comprehensive utilization in large scale, the fundamental principle of flotation for recovery of unburned carbon from fly ash was theoretically analyzed and the full flotation flow for the recovery of unburned carbon from fly ash was tested.

针对粉煤灰中未燃炭含量过高不利于大规模综合利用的问题，从理论上分析了浮选回收粉煤灰中未燃炭的基本原理，采用全浮选流程对粉煤灰中未燃炭进行了浮选回收试验，探讨了影响粉煤灰中未燃炭浮选效果的主要因素，确定了适宜的工艺条件。

In this study, the employee's willingness-to-participate in and willingness-to-pay for hypothetical supplementary health insurance packages designed by the research team was measured through contingent valuation method in Shanghai and Wenzhou. In Chengdu, the employee's actual rate of participation in supplementary health insurance was obtained through household survey. Logistic model was employed to establish the demand function and analyze the influencing factors. The organization and operation models for supplementary health insurance in different cities were summarized and comparatively analyzed. Based on the above results, proper coverage of health care and operation model for supplementary health insurance was discussed. Policy recommendation include the clear definition of the government's responsibility in the development of supplementary health insurance, the implementation of tax subsidy policy, the rule of the purchase of supplmentary health plans with personal saving accounts, and education and propagandism measures. At last, the regulation of supplementary health insurance is emphasized.

本研究根据上海和温州两地基本医疗保险框架分别设计了几个补充医疗保险方案，采用条件价值评估法调查了职工对这些补充医疗保险方案的意愿参加与意愿支付；在成都通过家庭入户调查获得了职工实际参加补充医疗保险情况，运用logistic模型建立了需求模型，进行了需求的影响因素分析；对国内补充医疗保险不同运作模式进行了总结与比较分析，探讨了补充医疗保险适宜的覆盖范围及其组织运作模式，并提出要明确界定政府在补充医疗保险发展中的职能定位，运用税收减免政策、允许用个人帐户购买补充医疗保险和宣传教育措施来扶持与引导补充医疗保险的发展以及加强补充医疗保险监管等政策建议。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。