结构

The gel dynamics experiments showed that the gel formation law was similar with the other polymer systems, which wasrelated with dense surface under the soft coagulating condition and the thickening gel; the square of gel thickness was linear with coagulation time. The qualitative analysis of the surface puckers of fibers spun from wet spinning and dry-jet wet spinning was made. The positions where the die swell appeared were not the same and the die swell appeared at the air gap where the fiber would markedly been elongated and vary little in the coagulant, thus the surface of fiber spun from dry-jet wet spinning was more smooth. The radial component concentration gradient was responsible for the radial structure of PAN fiber spun from dry-jet wet spinning. The thicker surface with microvoid structure of

对湿纺和干湿纺进行比较表层沟槽的产生进行定性分析，原因在于孔口胀大区域出现在不同位置，在干湿纺中，溶液的孔口胀大出现在空气层，并在该区完成大部分形变，进入凝固浴后形变很小，纤维表面较为光滑；干湿纺PAN纤维径向结构存在差异，这与丝条内组分由于双扩散进行导致径向上存在浓度差异直接相关；凝固强度较大的体系，可以获得厚度较大且孔结构尺寸较小的皮层；含较少缠结的PAN原液在纤维成形后截面很圆整，但原液缠结浓度增大时成形后圆整度下降；PAN纤维成形是一个远离平衡的过程，凝固作用缓和的体系可以使成形过程靠近平衡，可获得更大尺寸的孔洞结构；原液中少量的非溶剂添加剂显著改变纤维径向结构，可获得孔洞尺寸更小和更为均一的径向结构，这与径向浓度差异的减小、分相时间的集中相关；PAN原液的成形纤维表面依赖于凝固强度；由AFM对相近凝固条件下成形的PAN膜进下

In study of the truss structural dynamic characteristics analysis, randomness of the structural physical parameters and geomtric ones are all considered. The finite element model of the stochastic truss is built and the random functions of its natural frequencies are obtained by use of the Rayleigh quotient. Employing probabilistic distribution function expression for the random functions, through a series of mathematical processing including determination of limits of integrals, variable substitution etc., the probaabilistic density function for the truss natural frequencies are gained to realige accurate calculation for the reliability of the truss natural frequencies.

考虑结构物理参数和几何参数的随机性，通过构建随机参数桁架结构的有限元模型，利用瑞利商公式获得了结构固有频率随机函数的计算表达式，应用随机函数的概率分布函数表达式，通过确定积分区间、变量替换、积分顺序变换等一系列数学上的处理，获得结构固有频率的概率密度函数，进而实现对结构固有频率可靠度的精确计算。

The steel structure of the main body forms the whole giant spatial saddle-shaped steel truss knitting type "the bird nest", the steel structure totally uses the steel quantity is 42,000 tons ,the concretes stand divides into upper, middle and lower three, the stand concrete structure is underground 1 ,on the ground 7 floor of reinforced concrete frame - shear wall structural system.

主体钢结构形成整体的巨型空间马鞍形钢桁架编织式"鸟巢"结构，钢结构总用钢量为4.2万吨，混凝土看台分为上、中、下三层，看台混凝土结构为地下1层，地上7层的钢筋混凝土框架-剪力墙结构体系。

The main contents of the course include: Traditional ship design method based on empirical classification rules; Modern ship design method based on the first principles approach. Structural loads, loads combinations and loading criteria; Ship structural components configuration and arrangements; Ship initial scantling calculation based on the new rules; Ship total strength assessment including yielding, buckling and ultimate strength analysis.

主要内容包括：基于传统的船级社半经验公式的船舶设计方法；基于第一原理的现代结构设计方法；结构设计载荷，载荷组合和载荷衡准；结构部件选型和布置；基于新规范的结构构件初始尺寸计算；船舶结构整体强度分析，包括：屈服，失稳和终极强度分析。

3Ensemble character of structural planes as follows: In left dam abutment, meta basalt schistosity is main, and the structure is clockwise. Low dip angle jointing didnt develop in rock mass; In right dam abutment, rupture and jointing structural plane is main, and the structure is reversed. The structure was of obvious macroscopical slaty character. Constructional soft rock mass belt with some thickness developed.

3通过对上述结构面的分析，得出其总体特征为：左坝肩以变玄武岩片理为主体，呈顺向结构，岩体内缓倾角节理极不发育；右坝肩主要为断裂及节理型结构面，呈反向结构，且具有明显的宏观板状结构特征，并发育有一定厚度的构造软岩带。

The difference between codon choice randomization in the region of protein regular secondary structure and that in coil region is investigated in detail. We find that the folding free energy of mRNA segments in different protein secondary structures is significantly different. The average Z score is -1. 38 and -1. 71 for regular secondary structure, but -0.93 and -1. 03 for coil.

我们仔细分析了在蛋白质规则结构区域（alpha螺旋和beta折叠）和无规则结构区域密码子随机选择的差异，发现处于不同蛋白质二级结构的mRNA片段的折叠自由能有显著的不同，对于规则结构，Human和E.coli的平均Z-score值分别为-1.71和-1.38，但是无规则结构的Z-score值分别为-1.03和-0.93。

The stochastic finite element method can consider the random variables which are associated with soil properties, changeable loads, geometric conditions. The stochasitic properties of parameters and seismics will affect the interaction between soil and pile and the stochastic method is a trend to analyze the problem of pile-soil dynamic interaction.

参数和地震激励的随机性对土-结构动力相互作用的影响，土与结构动力学参数的不确定性和地震激励的随机性是众所周知的，其对结构响应的影响也是很重要的，对于结构的地震响应有重要影响的土-结构动力相互作用考虑各种随机因素的影响也是必然的发展趋势。

On the ground of simple compression test, a damage equation which reflect structural strength change with pressure is carried out. And it discriminated from the strain types of common soft soil and structural soft soil.

通过分析计算，明确了先期固结压力和结构强度的概念；提出了结构稳定系数，较为准确地判断出土的结构强度的影响程度，为工程设计提供参考；④基于单向压缩试验，提出了结构强度随压力变化的损伤方程；区分了一般性软土与有结构强度的土的压密类型。

Basic Study on Erection Planning Method for Beam String Structure 2,Study on Structural Characteristic of Hybrid Skeleton with Tension Strings 3, Proposal of Reversed Progress Teclmique for Tension Structures and Its Application 4,Mechanical Behavior of Hybrid Skeleton with Tension String during Construction 5,Experimental Studies on Structurel Characteristic of Hybrid Skeleton with Tension Strings 6,Mechanical analysis of a type hybrid spatiaI structure composed of cables,bars and beams 7, Tensile force compensation analysis method and application in construction for hybrid structures 8,Tensile forces emulationaI analysis of prestressed cables for multistage tension construction method 9,Reverse analysis method of construction centrel tensile force for prestressed space structures

1 ，基础研究规划方法架设张弦梁结构 2 ，结构特征研究混合骨架张力弦 3 ，建议反进展Teclmique张力结构及其应用 4 ，力学性能的混合骨架张力字符串施工 5 ，实验研究Structurel特征混合骨架张力弦 6 ，机械分析型杂交spatiaI结构组成的电缆，酒吧和梁 7 ，张力补偿的分析方法及应用在建筑混合结构 8 ，拉伸部队emulationaI分析的多级预应力锚索张拉施工方法 9 ，逆向分析方法的建设centrel张力的预应力空间结构

The industrial structure softening is one of the most important characteristic in current industrial structure.

产业结构软化是当前产业结构演变的重要特征，软化的主要原因是需求结构及生产要素的软化，知识经济时代的产业结构是一种软结构。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。