查询词典 structure

Its rule of change was obtained.On the basis of other studies,the flocculation kinetics and floes structure was studied. By making some assumptions, collision frequency were presented.Then the the flocculation kinetics model was established through population balance equation. Comparison of experimental data and modeling results indicate that there are the same trend between the two. So the model can predict floes number and size during flocculation of Yellow River's loess particles without using empirical parameters.The TEM and SEM were used to obsever floes in the study of floe structure.The flocculation was divided as flocculi,floc and floe aggregate.The floes structure model was established by assumption that particles position in floe accords with tetrahedron.The fractal dimension of model and experimental floes was found to be coincidentSo the model can reflect the structure of flocs formed in flocculation of Yellow River's loess particles by macromolecule flocculant at a certain extent

最后，本文还对絮凝动力学和絮体结构进行了研究，在前人研究的基础上，针对高分子絮凝黄河泥沙，对絮凝过程作了一些符合试验条件的假设，建立了颗粒碰撞频率表达式，应用了颗粒数量平衡方程，从而建立了絮凝过程的动力学生长模型，模型计算结果与试验数据对比表明，二者趋势一致，在没有使用经验参数的情况下基本上能够描述黄河泥沙絮凝过程中絮体数量和尺寸分布的变化过程；对絮体结构的研究中，应用扫描电子显微镜和透射电子显微镜对絮体进行了观察，将絮体分为絮粒、絮团和絮网三个不同的生长阶段，通过假设颗粒结合位置符西安建筑科技大学博士学位论文合正四面体，建立了絮体结构模型，计算得到的模型絮体分形维数基本与试验中的实际絮体相符，在一定程度上能够反映高分子絮凝黄河泥沙生成的絮体结构。

In order to solve these problems, we propose a novel scheme: by getting ring structure and star structure together, we get a bidirectional four-ring structure, in which the outer two rings form a standard RPR, and the inner two rings form a star structure logically.

为了解决弹性分组环局限性问题，提出了弹性分组星-环结构：即将环形结构和星形结构结合起来，组成一个四环结构，使外二环在物理上是环形结构，内二环在逻辑上是星型结构。

According to the calculation analysis of one multi storied house project,it compares the key technical parameter and qualification of the concrete structure,rolled H profiled bar frame structure,welding H profiled bar frame structure design result,which shows steel frame structure applied in multi storied house is a structural system to be worth generalization.

通过对一多层住宅建筑工程设计方案的计算分析，比较了混凝土结构、轧制H型钢框架结构、焊接H形钢框架结构设计结果的主要技术参数及指标，表明钢框架结构应用于多层住宅是一种值得推广的结构体系。

From the seal,half seal society transforms to the opening society,Transforms by the homogeneity sole society to the neterogeny diver sesociety,From ethics society to legal society,The countryside society's community structure,the system structure、the organizational structure、the benefit organization、the ideological structure all are plitted up gradually.

在改革开放和建设社会主义新农村的浪潮下，我国农村诸多领域发生着巨大的变化：从封闭、半封闭的社会向开放型社会转型；由同质单一型社会向异质多样型社会转型；从伦理社会向法理社会转型；农村社会的群体结构、体制结构、组织结构、利益机构、观念结构都在逐步分化。

Aiming at the demands in HMIS of the local hospital, and in light of the tendency of software-system-structure develop from the structure of Client and Server to the structure of Browser and Server, we studied the direction of the hospital management system based on the structure of Browser and Server.

针对国内中小型医院对医院管理信息化的要求，以及软件体系结构从客户端/服务器(Client/Server，简称：C/S)结构向浏览器/服务器(Browser/Server，简称：B/S)结构模式发展的趋势，我们提出了基于B/S结构的医院信息管理系统的课题研究方向。

First, it reconstructs the argument about the legal provision structure aroused by Analytical Jurisprudence. Austin deemed that the order rule is the main part of the provision structure, but Kelson thought that the punishment rule is the main part of the provision structure. Hart believed that the provision structure should have diverse forms, but the punishment rule is by no means necessary to any provision.

首先，重构了分析实证主义法学有关法律规范结构理论的主要争论：奥斯丁认为命令性规则是法律规范结构的主要部分，而凯尔森则认为规定制裁的规则是规范结构的主要规则，哈特则认为，法律规范应该具有多样形式，但规定制裁的规则并非对任何规范都是必要的。

Kempers' study , the more layers the mesh screen type had, its resistance against gravity was higher, but its heat resistance and flow resistance were comparatively augmented. As mentioned in the preceding paragraph, it is extremely difficult for a single micro structure based on any of the three types to possess both low flow resistance and strong capillary force. Faced with this fact, the researchers have tried to mix the three micro structures in Table 2 into as many combinations as possible so that a composite micro structure with low flow resistance and great capillary force may be fabricated. After a thorough analysis, the groove combined with sintered metal or mesh screen has been found to be a better alternative. However, the groove combined with sintered metal will raise the flow resistance of the channel, and the aluminum substrate employed in this research cannot be sintered into a micro structure. As a result, the groove combined with mesh screen is finally chosen as the composite structure to enhance its capillary force and at the same time maintain its high permeability. In this way, the heat pipe will not fail due to the working angles.

Kempers 的研究当中提到，当网格结构越多层时，其对抗重力的能力也越强，但相对的其热阻以及流阻也越高，就如同前段所述，我们很难在单一结构当中找出一流阻低且毛细力之微结构；因此本研究便以表2中之三种微结构进行组合，找出一低流阻且毛细力强之复合式结构，经分析发现，沟槽搭配烧结以及沟槽搭配网格为较佳之组合方式，但由于烧结搭沟槽构造将会提高流道之流阻，且本研究使用铝做为基材，并无法使用烧结最为其微结构，故将采用网格搭配沟槽之复合式结构提高结构的毛细力，并维持沟槽结构的高渗透性，解决因角度造成热管失效的问题。

In this paper I analyse the land use current structure of Taiyuan city, study the factors that influence the land use structure to change, forecast its future land use structure applied Markov chain model and grey systematic model and explore its change characteristic and law on the basis of study the basic theories of the land use structure.

本文在土地利用结构变化理论研究的基础上，以太原市土地利用结构为研究对象，通过对太原市土地利用现状结构、空间布局，以及土地利用结构变化的社会经济因素分析，采用马尔柯夫链模型和灰色系统模型对太原市未来土地利用结构进行了动态模拟和预测，探索了太原市土地利用结构变化的特征和规律。

This dissertation fistly introduces appearance, definition, development process, functions and status of MES, also analyses methods and existent problems of MES production scheduling; as follow, in the background of CY_MES (a enterprise's Manufacturing Execution System), introduces main function and buildup of its support platform– SIMATIC IT, and whole structure of CY_MES; afterwards, for special production instance of the enterprise, designs production scheduling system software structure, function structure, data structure of order and entry and realization of silk production and packing production scheduling based on SIMATIC IT; finally, after contrast of many modeling methods and careful research of silk production flow of the enterprise, selects Petri net to model the silk production scheduling, for the sake of avoiding many error chromosomes, improves on the basic genetic algorithm, uses sigle unit genetic algorithm to optimize the Petri net model, lists the contrast of scheduling results.

本文首先介绍了MES的产生、定义、发展历程、功能及其发展现状，同时也分析了MES生产调度问题的各种解决方法及其存在的问题；接着以CY_MES为背景介绍了其支撑平台——SIMATIC IT平台的功能及其各组成部分，以及CY_MES的SIMATIC IT整体解决方案；紧接着在SIMATIC IT平台基础上，针对该烟厂的生产实际情况，设计了CY_MES生产调度系统的软件结构、功能结构、工单和子工单的数据结构和制丝与卷包生产调度的实现方式；最后，在比较了各种生产调度建模方法的利弊和对该烟厂制丝生产工艺流程深入研究后，利用Petri网建立了制丝生产调度模型，为了避免大量无效个体的出现，对基本遗传算法进行了改进，采用单个体遗传算法对这个Petri网模型进行了优化，并给出了调度结果的对比。

The results indicated that most students were dependent on the problem's surface structure for their sortings. Futhermore, an interaction effect was found between the student's grade and their achievement. As the grade level increase, instesad of using surface structure, high achievement students tended to sort problems according to their semantic structure. On the contrary, low achievement students became relied more and more on the surface structure of the problems while sorting.

另外，学童之年级及其数学成就对他们采用何种策略解题有交互影响；随年级的提升，高数学成就组学童倾向放弃弃表面特徵，而改较高层次的语意结构作为分类的基础；反之，五年级低成就组学童则变得更依赖问题的表面特徵作为分类的依据。

Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.

目的：探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等，并与健康人进行比较，从而量化精神分裂症病人的认知功能损害，并进一步探讨其认知功能与疾病严重程度的关系。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。