结构

Structures, there was an important issues in the jointless design of R.C. superlong structure.

对平面尺寸不大的结构来说，认为基底各点输入的地震激励是一致的尚且可以；但若结构的平面尺寸很大，或者结构是像桥梁那样的长跨、多跨结构，则此时再对结构基低各点和各支点输入同一地震时程进行分析就不尽合理了。

The deformation compatible equation based on the catenary cable element is derived in chapter 2, and corresponding program is made to solve the accurate distribution of the prestress for cable dome. During the solving, two-nodes bar elements and catenary elements are adopted for the struts and cables of structure respectively. As the cable dome is a kinematically indeterminate system, its solving process is also derived in detail and the equations, which are based on large distortion, are adopted to solve the problem.

第二章推导了基于悬链线解析解的索单元变形协调方程式，并编制了相应计算程序对索穹顶结构精确的预应力分布进行求解，结构分析时压杆采用两节点直线杆单元，索采用悬链线索单元；考虑到索穹顶结构属于动不定结构体系，文中还对动不定体系的求解过程进行了详细的推导，同时采用建立在大变形基础上的变形协调方程来求解结构体系的有限机构位移。

The main reason lies not only on power quantity, but more on power structure. This article based on some theories of industrial economics and lengthways analy...

本文从产业经济学的角度，以纵向分析为主，沿着现状、问题与对策的分析思路，对我国电力工业与国民经济的关联、电力投资结构、电源结构、电网结构与区域结构等进行了深入的分析，为进一步促进我国电力结构的调整、资源的优化配置和电力工业的改革与发展提出了一些对策和建议。

Based on the results of the large-size shaking table test of a subway station structure built in liquable site,considering the influence of the soil-structure nonlinear dynamic interaction by 2D finite element methods,the seismic responses of the soil- subway station structure system under different test conditions are analyzed by using ABAQUS software.

根据可液化土层上土-地铁车站结构动力相互作用大型振动台模型试验结果，以软件ABAQUS为平台，将地基土-地铁车站结构体系视为平面应变问题，采用记忆型嵌套面黏塑性动力本构模型模拟土体的动力特性，采用混凝土动塑性损伤模型模拟车站结构混凝土的动力特性，建立了土-地铁车站结构非线性动力相互作用的有限元分析模型，对各种试验工况下地基土-地铁车站结构体系的地震反应进行了数值模拟，并与试验结果进行了对比，结果表明：数值模拟与振动台模型试验结果基本一致，体现出了相似的规律性，相互印证了计算分析的力学建模和振动台试验结果的正确性。

Thirty two point six percent (42/129) of menopausetransition women and 18.9％(60/318) of menopause women had breast structure changes,〓=9.26, P＜0.01. The frequency of breast structure changes decreased with decreasing ofserum of 〓 level and increasing of age. Four (4/29, 13.8％) in HRT group had breaststructure changes, which disappeared after discontinuing HRT or reducing the dose of HRTin 3 subjects. Conclusions: Most of normal menstrual women and menopause transitionwomen experienced Mastalgia; Mastalgia occurred in 89.7％ of subjects and lasted forabout 2 M. in the 1-year ccHRT; Image of breast ultrasound changed following menstrualcycle in normal menstrual women; Breast pain and breast structure change may be causedby higher 〓 and P level in luteal phase; The breast structure changes of HRT user weresimilar to that in normal women and were reversible.

大部分正常月经妇女和绝经过渡期妇女有周期性乳房胀疼，绝经后妇女应用17 β-雌二醇2mg加醋酸炔诺酮1mg连续联合治疗1年中大部分使用者有持续约两个月的乳房胀疼；乳腺体层厚度随体内雌孕激素水平的下降和年龄的增加而逐渐萎缩，绝经后妇女应用17 β-雌二醇2mg加醋酸炔诺酮1mg连续联合治疗1年后，对乳腺体层的厚度没有明显的影响；超声下乳腺结构改变主要受体内雌孕激素水平的影响，正常月经妇女中1／3的乳腺结构改变具有可逆性，绝经过渡期和绝经后妇女中有一半的乳腺结构改变的特征类似正常月经妇女具有可逆性的乳腺结构改变；绝经后妇女应用17 β-雌二醇2mg加醋酸炔诺酮1mg连续联合治疗1年后，少数使用者出现的乳腺结构改变可随药物剂量的调整或停药而恢复；对长期HRT使用者仍需加强乳腺的监测，长期HRT对乳腺的影响值得进一步研究。

In this way a new research model:frequent structure vector model derived the expression of document structure vector and weight function and constructed the calculate formula to measure similarity of the two documents. In order to improve the efficiency of mining frequency subtrees in a forest reformed the algorithm TreeMiner from data structure and miner procedure to fit to minning structure in large documents.

该方法架构了一个新的检索模型—频繁结构向量模型，给出了文档的结构向量表示和权重函数，构造了XML文档结构相似度量计算公式；同时从数据结构和挖掘程序上对TreeMiner 算法进行了改进，使其更适合大文档数据集的结构挖掘。

Brominated butyl rubber was prepared by solution method,and its microstructures were characterized by 1H-NMR. It has three main microstructures,that is the unbrominated isoprene structure,the exomethylene allylic bromide structure (structure Ⅱ) and the bromomethyl olefinic structure (structure Ⅲ).

通过溶液法制备溴化丁基橡胶，并用核磁共振对溴化丁基橡胶的微观结构进行了分析，其中存在3种主要微观结构，即未溴化的丁基橡胶结构，溴代仲位烯丙基结构及溴代伯位烯丙基结构。

Adopting the model of uniform load and triangular load separately,MRFs of different story numbers and bay numbers are analyzed by static Pushover analytical method,and the global capacity envelopes are obtained.Then,through a method for establishing the inelastic demand spectrum of design intensity and rare intensity based on elastic spectrum of seismic design code for buildings,the structural target displacement of design intensity and rare intensity are estimated by improved capacity spectrum method.The corresponding structural ductility reduction factor,the overstrength factor,the structural influencing coefficient and displacement amplification factor are determined.

分别采用水平均匀分布力和倒三角分布力加载模式对不同层数和跨数的钢框架结构进行了静力推覆分析，并得到了结构的能力曲线，在此基础上，应用改进的能力谱法，以规范反应谱为基础建立设防烈度和罕遇烈度下的弹塑性需求谱，确定出结构在设防烈度和罕遇烈度下的目标位移，进而求解出结构的延性折减系数、超强系数、结构影响系数和位移放大系数等参数；同时，分析了不同加载模式、层数和跨数等对各系数的影响。

Different from the Classical harmony with the focus of Third structure, there are many different kinds of chord structures in Pentatonic Mode Harmony.

和弦结构触及和声学的根本，与传统和声以三度结构为中心的结构方式不同，五声性调式和声中有多种不同的和弦结构方式，运用不同的结构方式构成的和弦自然会有不同的和声效果。

Firstly, the high resolution pictures of dragonfly wings from sample tests were studied thoroughly, and the unique feature of the reticulate vein distribution and the variation of the vein sizes and the grid shapes in different zones were figured out;then several computational models based on a dragonfly wing were established by using ANSYS, and beam 189 and shell 93 elements were used respectively in modeling of the veins and the membrane so as to ensure the compatibility between the veins and the membrane at a deformed state;these models subject to uniform loading cases were analyzed respectively so as to explore the unique performances of the wing structure, furthermore, through eigenvalue spectrum analyses of these models, the special role of the pterostigma in eliminating or suppressing the wing quivering effect was also evaluated.

首先，对实验中获取的高清晰度的蜻蜓翅膀数码图片进行了细致地分析，找出了翅膀网状翅脉结构中翅脉的分布规律与尺寸变化、网格形状的差异及不同形状网格的分布等独特的结构特征；再利用ANSYS建立蜻蜒翅膀网状翅脉结构模型，采用三节点等参数梁元beam189模拟翅脉和八节点等参数曲壳单元shell93模拟翅膜，以满足翅脉和翅膜间的变形协调性要求；通过非线性数值分析，探索了蜻蜓翅膀网状翅脉结构在均布荷载作用下所具有的独特的结构性能；通过模态分析，揭示了翅膀前缘靠近翼尖附近的翅痣在翅膀消震减振中所发挥的作用。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了