查询词典 columnar structure

The vibration response of the viaduct structure by steel spring bearing, the viaduct structure by laminated rubber bearing, the track structure by Colon egg vibration damper, the track structure by steel spring damper and the ballast bed track structure are simulated through vehicle passed. The vibration parameter of the viaduct is optimized and the vibration transfer function characteristic of the ballast bed track structure and the track structure by steel spring damper are compared.

对钢弹簧支座高架桥结构、普通板式橡胶支座高架桥结构、克隆蛋减振器式轨道结构、钢弹簧浮置板减振器式轨道结构和普通碎石道床轨道结构在列车运行作用下的振动响应进行了仿真研究分析，对高架桥结构隔振参数进行了优化，比较了浮置板式和普通碎石道床轨道结构的振动传递特性。

The fourth part examines the semantic features of AN structure. It is concluded that AN structure is metric and its origin is that AN structure is transmitting structure with weak function. That is to say, because referential meaning of N is weak and declarative meaning is strong, N is made to be close to A to make the structure deviate in function. AN structure in sentences metricizes the attribute of verbs and it has the constraints of structural meaning on the internal structure of AN and VP.

第四部分考察AN结构的语义特征，得出：AN结构具有量度义，其来源是因为AN结构是弱功能传递型结构，即&N&的指称义弱，事物性虚弱、语义内容抽象，A的陈述义强，使得N向A靠拢，才使得由其构成的偏正结构在表述功能上发生了偏离，使整个短语性状化，具有了量度义；AN结构入句后表示对动作某方面属性的度量，这一格式义对AN结构内部、VP具有制约作用。

The main research contents are as follows:1. Through massive calculation, analysis and comparison, sum up the similarities and differences between the special-shaped cross sections and rectangular cross sections in mechanical features, between reinforced concrete special-shaped columns and rectangular columns in load-bearing capacity, ductility performance and provide necessary basic concepts and data for further understanding the characteristics of the special-shaped columns;2. Through massive elastic calculations and elasto-plastic analysis, under the preconditions of satisfying the code's requirements for axial compression ratio, limit value of lateral displacement and load-bearing capacity of normal section,oblique section and beam-column joint, under circumstances of different intensity of earthquake, structure dead weight, sort of site and column grid bay dimension, the variation regularity of maximum suitable height of structure, and thus sum up the maximum suitable height of structure for code for the purpose of macro-control while deciding the design scheme;3. Make a preliminary study on the stress feature of reinforced concrete special-shaped column and Z-shaped column of which the ratio of limb length to limb thickness is between 4~5 ,and the preliminary design method is suggested;4. Through elato-plastic time history dynamic analysis of typical projects, check up the weak storey of the special-shaped column structure and yielding, breaking and collapse mechanism to satisfy the earthquake resistant requirement to buildings of remaining stand under strong earthquake;5. Derive for project use simplified calculation formula of vibration period, suitable vibration period, suitable rigidity of special-shaped column structure through theoretical analysis, and provide an easy and practical method for deciding the structure scheme economically, safely and reasonably;6. Based on the study achievements in theory and massive analysis and calculations of this paper, sum up the regularities of inner force, deformation of special-shaped column structure and seismic conceptual design, and thus the suggection of seismic design of special-shaped column structures is presented.

本文研究的主要内容如下：通过大量的计算、分析和对比，总结出异形截面与矩形截面在力学特性、钢筋混凝土异形截面柱与矩形截面柱在承载能力、延性性能等方面的异同，为深入了解异形截面柱的特点提供必要的基本概念和数据；通过大量的弹性及弹塑性计算分析，在满足规程对轴压比、侧移限值及正截面、斜截面、节点承载力抗震验算要求的前提下，在不同抗震设防烈度、结构自重、场地类别及柱网开间尺寸情况下最大适宜高度的变化规律，并在此基础上总结归纳出异形柱结构的最大适用高度规定，可用于规程，以便于在确定方案时起到宏观控制的作用；对肢长与肢厚比在4～5的钢筋混凝土异形截面柱及Z形柱的受力特点进行初步探讨，提出初步的设计方法；通过对典型工程的弹塑性动力时程分析，检验异形柱结构的薄弱层及屈服、破坏、倒塌机制，以达到建筑物大震不倒的抗震设防要求；通过理论分析，推导出异形柱结构自振周期，以及适宜自振周期、适宜刚度的工程实用简化计算公式，为经济、安全、合理地确定结构方案提供简便实用的方法；在本文理论分析、计算以及大量的研究成果基础上，总结归纳出异形柱结构内力、变形的规律及抗震概念设计内容，并在此基础上提出异形柱结构的抗震设计建议。

Experimental results show that rapid solidification technology can remarkably optimize Mg-Zn-Nd alloy's microstructure and property,there are three zones of fine grain zone,columnar grain zone and equiaxial grain zone in ribbon's solidification structure,which reserve structure character of cast-magnesium alloy.

结果表明：快速凝固技术可显著优化Mg-Zn-Nd合金的组织结构与性能；薄带的凝固组织分为细晶区、柱状晶区、等轴晶区三个区域，保留了铸态凝固组织的特性；快速凝固技术的细晶强化和固溶强化可明显改善Mg-Zn-Nd合金的强度与塑性。

It was found that the composite structure of Ti-Si-N films, nanocrystalline TiN embedded in amorphous Si_3N_4 matrix, was confirmed in this work. The increasing deposition pressure resulted in the appearance of columnar structure, decrease in the film density, increase in the surface roughness, and deterioration of the adhesion strength and tribological properties.

结果表明，Ti-Si-N薄膜为纳米相的TiN镶嵌于非晶态的Si_3N_4基体中的结构，溅射气压的增大导致薄膜中柱状晶的出现，薄膜致密度下降，表面粗糙度增加，结合力和摩擦学性能恶化。

Here have formed in about 14 million years ago to 3 million years between the Mesoproterozoic Jixian System Yunmeng Mountain Group - Upper Carboniferous Taiyuan Formation, exposed systems and complete; has Archaean - Early Mesoproterozoic basement, but also has the typical structure of relics, such as the basement Archaean gneissic complex structure, Early Mesoproterozoic supracrustal rocks at the end of secluded fornix structure, super-nappe cover, ductile shear zone tectonics, ductile - brittle deformation structure of brittle fault cleft construction, single-sided Hill Construction, as well as the cap structure of the collapse, landslides and other structure.

这里有形成于距今约14亿年～3亿年间的中元古界蓟县系云梦山组—上石炭统太原组地层，出露系统而完整；有太古界—早元古界基底，还有典型的构造遗迹，诸如基底太古界片麻杂岩构造，早元古界表壳岩的底僻穹窿构造，盖层的超覆构造，韧性剪切带构造，韧-脆性变形构造，脆性断裂构造，单面山构造，以及盖层中的垮塌构造，滑坡构造等。

The math models of the tree structure chart and the net structure chart are formed by describing the different road state abstractly.The tree structure chart model is presented without consideration of U structure and ring structure. This kind of model has a notable feature: there is a line only between the two dot in the chart, which means that there is only one road from one point to another point in expressway ,so the tree structure chart is called "single roads chart".

在不考虑U型路段和环路的情况下，提出了高速公路的树状结构图模型，该模型具有一个显著的特点：图中两点之间有且仅有一条连线，这意味着由高速公路上的一个地点到达另一个地点仅有一条通路，也称这种高速公路树状结构图为"单路径图"；考虑到包含U型路段和环路的高速公路路况，提出了高速公路的网状结构图模型，这种模型可抽象成一个连通图，即图中任意两点之间至少有一条直线相连，这意味着由高速公路上的一个地点到达另一个地点有多条通路，也称这种高速公路网状结构图为"多路径图"。

According to the studied results at present, the studied objects are mainly thin plate and beam about sound radiation mode, a method computed sound radiation mode of complex structure is presented in this dissertation, according to the results of the previous two chapter, a theoretical method to solve acoustical radiation mode and acoustical radiation efficiency of complex structure by boundary element method and acoustical radiation theory is posed, the acoustical radiation power is expressed as a Hermitian quadratic form, while the radiation modes is determined by general eigenvalue decomposing, and then the radiation efficiency is computed via the orthodoxy of radiation modes with regard to impedance matrix and average velocity matrix; lastly, the validity of the method is proved by pulsating sphere and radiating cube with analytical results. According to results of the form three chapter, the structure sound radiation sensitivity is studied in detail, the sound radiation power of structure can be expressed as positive Hermitian quadratic form, the sound radiation sensitivity can be expressed as two parts by partial differential with respect to design variable, which are sensitivity of boundary velocity and impedance matrix, combined with the theory of FEM and BEM, the structure sound radiation can be translated to the analysis of structure dynamic sensitivity and impedance matrix sensitivity. The theory posted in this dissertation is tested by the FEM software ANSYS and the software AAS programmed by author.

在前几章的基础上，通过结构声辐射的模态理论对结构的声辐射的机理进行了深入地探讨，针对目前声辐射模态的研究对象主要是简单的板和梁类结构，提出了一种计算复杂结构声辐射模态的方法，利用前两章研究所得的结论，将边界元方法与广义特征值的理论结合起来研究了复杂结构的声辐射模态与声辐射效率，先将结构的声辐射功率表示为一个正定的厄米特二(来源：ABb7C论文0909网www.abclunwen.com)次型，运用广义特征值分解求解了复杂结构的声辐射模态，然后利用声辐射模态关于阻抗矩阵与均方速度耦合矩阵的正交性，求解了复杂结构的声辐射效率，最后用具有解析解的脉动球与辐射立方体验证了该方法的有效性。

The concepts of weight lattice structure, sphere lattice structure and lienor lattice structure are introduced to describe it, some properties of the k-error lattice structure are given, and a relationship between the k-error lattice structure and the k-error linear complexity is presented. These create a elementary frame of the stability theory of the lattice structure.

提出了伪随机序列格结构的稳定性问题，引入重量格结构、球体格结构、k-错格结构等概念来描述之，给出了k-错格结构的一些基本性质，并研究了k-错格结构与k-错线性复杂度的关系。

Current researches show little attention to this structure and thus this paper is devoted to an overall understanding of this structure. The content of this thesis focuses on the following three aspects:First, when restricting the potential semantic range of noun phrases with its own proposition, the modifying clauses in English and Chinese share the same semantic features. That is to say, the modified noun phrase and the predicate of the clause depend on each other for existence. This semantic restrictiveness is obligatory for the clause and the noun phrase it modifies in both languages. Second, though sharing the same potential conceptual meaning, the combination of a clause and its modified noun phrase shows different syntactic position in surface structure as well as the inner structure of the clause. Based on a full description of syntactic characteristics of this kind of clause, the present thesis points out the differences and similarities existing in surface structure between English and Chinese. Finally, under the guidance of Chomskys Minimalist Program(1995), the thesis analyses the derivational processes of this structure in both languages.

现有的对比研究对于该结构的探讨，不论是在描述和解释上都是不完备的，为了深化这一句法结构的认识，本文从如下几个方面对英汉分句作定语修饰名词的现象进行了对比：首先，分句用自身的命题限制中心名词的语义范围时，在两种语言中具有相同的语义特征，即中心名词与分句内部的谓词之间存在依存关系，分句修饰名词必然受到语义的限制，是英汉两种语言必须共同遵守的准则；其次，英汉两种语言中表达相同概念意义的这一句法单位与其修饰的名词结合后，在表层结构中体现出不同的位置关系，且分句内部的句法结构也各有特点，本文在充分对其句法特征描述的基础上，指出二者在表层形式上的差异和共性；最后，尝试在乔姆斯基的最简方案(1995)框架内，演示英汉两种语言。

Metrorrhagia is also gynaecological problems of common diseases.

崩漏是妇科常见病也是疑难症。

WordFTP gives you the convenience and timesaving you need.

wordftp让您的方便和省时您所需要的。