查询词典 submicroscopic structure

Firstly establishing mechanical model of casing structure , and then processing casing forces analysis using space finite-element method and superposition method(put structure stress and outer force stress together), it computes the stress of casing in three dimensions, and gets the internal force and transmutation. The structure of casing-coadjutor is computed overlaply and the question of contact is solved. In the aspect of design, it provides the mixed integer-discrete variable optimization method of casing cross section size and coadjutor layout.

本文就上述两个问题的最优化设计展开研究，首先建立了套管结构的力学模型，进行套管的受力分析，用了空间有限元法和叠加法(结构应力和外载应力相叠加)，对套管进行三维计算，确定结构的内力和变形，对套管—扶正器结构进行整体的叠代计算，解决接触问题；在设计方面，提出了解决套管截面尺寸参数和扶正器布局的混合整数—离散变量优化方法。

This paper made displacement calculation and analysis adopting beam3, beaml88 units through ansys software, then compared the displacements of upper steel frame of mixed-layer structure and single story workshop under different loads and established the reasonable domain of displacement coefficient about mixed-layer structure, thus provided references and basis for the design of such structure.

针对一种新型结构即混凝土与钢结构混合而成的结构一混层结构，通过ansys软件，采用beam3、beam188单元对此新型结构进行位移计算及分析，并通过在不同荷载工况下混层结构的上层钢架位移与单层厂房的钢架位移进行比较分析，确定混层结构位移影响系数的合理范围，为此类结构的设计提供参考依据。

Considering that both the solution of the structure natural vibration frequency and mode as well as its elastic stability coefficient can transform into eigenvalue problem of the structure dynamic equilibrium equation, taking the fundamental frequency and the elastic stability coefficient of the structure as the evaluation criteria, the possible arrangements of Mi-brace and X-brace for halfthrough CFST arch bridge with 360 m span were comparatively analyzed, and the advices for the reasonable space of the Mibrace and the X-brace were advanced.

鉴于结构自振频率、振型及弹性稳定系数的求解均可转化为源自结构动力平衡方程的特征值问题，先以结构基频及弹性稳定系数为衡量标准，对一座360 m跨的中承式钢管混凝土拱桥可能的米字撑及X撑布置方案进行了分析对比，并据此提出了X撑及米字撑的合理间距。

Some basic properties of σ- LFSR over F4 are studied, such as nonlinearity, cycle structure distribution of state graph, the largest period and counting problem related. The conclusions are as follows:The coefficient ring of σ-LFSR is isomorphic to the matrix ring over F,. The cycle structure of σ- LFSR is consistent with that of the determinant of the corresponding polynomial matrix if and only if the feedback polynomial of - LFSR does not contain nontrivial factor over F2,. The counting formula of the number of σ- LFSR with inconsistent cycle structure is also showed in that part. The period of σ-LFSR with degree n is maximum if and only if the determinant of the corresponding polynomial matrix is the primitive polynomial with order 2n over F2,.

本文研究了有限域F_4上的σ-LFSR的一些基本性质，如非奇异性、状态图的圈结构的分布、最大圈的充要条件及相关的计数问题等，得到以下结论：σ-LFSR的系数环同构于F_2上的矩阵环；σ-LFSR的状态图的圈结构与对应的多项式矩阵的行列式的圈结构一致的充要条件为σ-LFSR的反馈多项式不含有非平凡的F_2上的因式，给出了圈结构不一致的σ-LFSR的计数公式； n次σ-LFSR周期达到最大，当且仅当对应多项式矩阵的行列式为F_2上的2n次本原多项式。

The contents include the computing of dimensions of cohomology of line bundles on non-primary Hopf manifolds and their applications to the existence problem of holomorphic structure or filtrable holomorphic structure on a continuous vector bundles; the structure and the computing of dimensions of cohomology of holomorphic vector bundles with trivial pull-back.

在这篇博士学位论文中，我们研究了非主Hopf流形上全纯向量丛，主要包括：非主Hopf流形上全纯线丛的上同调维数的计算，以及它们对连续向量丛上全纯。。。

In order to meet the requirement of the Collector ring dipole superconducting magnet of FAIR in the process of operation, meanwhile, and to ensure the heat loads coming from the support structures to be lower than the design demands, the 3D models of support structures have been constructed with CATIA, then the calculation of low-temperature heat-load and the structure analysis have been done with ANSYS, the support structure material, 316LN+G10, is decided according to the heat-load calculation and the structure optimization, these results are necessary for manufacturing the formal magnet.

为保证FAIR收集环(Collector ring-CR)超导二极磁体工作过程中的磁场位形符合设计要求，同时保证由磁体支撑带来的热负荷小于设计要求，用CATIA软件建立了不同结构的磁体支撑3D模型，并用ANSYS有限元分析软件对建立的模型进行了低温热负荷分析和结构分析。通过比较分析的结果和对磁体支撑结构进行的进一步优化，确定了316LN+G10材料的支撑结构，为收集环超导二极磁体工程制造提供了参考。

The metal structure of crane telescopic boom is analyzed and optimized by structure analysis and the combinatorial optimization based on topology and size optimization methods, and structure integrated design of telescopic boom is achieved by the development of visual software system in this paper.

本文应用结构初级分析和基于拓扑优化、尺寸优化的组合优化分析方法对起重机的伸缩臂金属结构进行优化设计，同时开发可视化软件系统实现伸缩臂结构的集成设计。

The molding is concinnity and the structure system is definite. Through the research of the problems about the structure system, static and dynamic character, and the bear rigidity of the under structure, this paper presents t...

本文通过对该屋盖结构的受力体系、静力和动力特性以及下部结构的支承刚度等问题进行研究与分析，提出此类大跨大悬挑结构在分析与设计过程中应注意的问题，并对部分关键节点设计进行介绍。

The analysis framework is established theoretically based on International trade and foreign direct investment as the basic conjunctional mechanism of the interactive evolution of industrial structure. Moreover, the paper lays stress on the statement in comparison with international materials and the varied stages of industrial structure, whilst engaging in the empirical analysis to the industrial structure in special economy with data.

论文的研究采取理论与实证相结合的方法，理论上以国际贸易和国际直接投资理论为产业结构互动演进的基本联接机制建立分析框架；针对特定经济体产业结构的分析则以实证数据为基础，同时注重在国际比较中展开论述，并强调产业结构变动的阶段性。

Future changes in the structure of the overall consumer trends : consumer structure will undergo fundamental changes, from material consumption-oriented non-material consumption-oriented; Consumption will further reduce the proportion of survival information, enjoyment and development of information consumption increased; Changes in the structure of consumption and quality of life stage characteristics of high-grade consumer goods, such as housing, automobiles increased effective demand, consumer demand for services greatly enhance the awareness and quality requirements.

未来居民消费结构变化的总体趋势是：居民消费结构将发生根本性的变化，即从物质消费为主转变为非物质消费为主；生存资料消费比重将进一步降低，享受和发展资料消费比重上升；消费结构的变化越来越体现生活质量阶段的特征，各种高档消费品，如住房、汽车的有效需求上升，对服务消费的需求和质量要求意识大大提高等。

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"