截面

The structural design is carries on the design calculation after the plan comparison and appraisal recommendation plan, this stage design primary mission is: The design material analysis and the structure arrangement, the king post endogenic force computation, the pre-stressed steel ties the estimate and the arrangement, the computation king post section geometry characteristic, the steel tie the loss of prestress computation, the king post section intensity checking calculation, the king post nose partial bearing strength checking calculation, the king post distortion checking calculation and part compositions and so on lane board computation.

结构设计是根据方案评比后的推荐方案进行设计计算，这一阶段的设计主要任务是：设计资料分析及构造布置、主梁内力计算、预应力钢束的估算及其布置、计算主梁截面几何特性、钢束预应力损失计算、主梁截面强度验算、主梁端部的局部承压强度验算、主梁变形验算和行车道板计算等部分组成。

The analysis on the test result shows that the temperature distribution in CFST members caused by solar radiation is nonlinear,and the nonlinear character is most evident when center point of concrete gets its lowest temperature. The temperature of the center point is affected by various directions, especially the strong potential. In the side exposed to the sun in the afternoon, apart from the center point, temperature varies laggardly when the point of concrete in the same series is more close to the center. But in the side not exposed to the sun in the afternoon, temperature varies laggardly when the point of concrete in the same series is more close to the center.

结果表明，日照作用下截面的温度场为非均匀场，混凝土中心的温度达到最小值时，截面温度场的非线性特性最明显，圆心点的温度受各个方向温度的共同作用，更多地受到强势方向的影响；下午时处在向阳面的各系列，同一系列上混凝土各点温度变化随直径缩小趋缓，越靠近圆心，温度变化越缓和，对外部环境的影响呈滞后现象越明显；而在下午时处在背阴面的各系列除圆心点外，同一系列上越靠近圆心的混凝土测点，温度变化越缓和。

In the microchannel (3), a gap part (31) in which the section of the channel is reduced is provided in a central part upward and downward, rightward and leftward, or upward and downward and rightward and leftward the section thereof, and microbeads are checked.

在微通道(3)中，设有使得在截面的上下、左右或上下左右的中间部的使通道截面减小的间隙部(31)，从而拦截了微珠。

It is shown that although statistical distribution of relative velocity between two atoms has no impacts on the line shape of LICET spectrum, it has certain impacts on the peak value of collision cross section.

分析表明，两原子之间相对运动速度的统计分布虽然不影响激光感生碰撞截面的谱线线型，但对碰撞截面的峰值大小有一定的影响。

And 0.4～0.6 respectively for the induction coil with round crosssection and rectangular cross-section; The magnetic flux density of coil made with round pipe was nonuniform, especially near the inner wall of coil turns that caused a fluctuation of electromagnetic pressure on the surface of liquid metal and had a bad effect for forming a sample with uniform cross-section and smooth surface; The system of screen and restraint magnetic field not only had an efficient effect on restraining the electromagnetic stirring and stablizing meniscus, also caused the conecial periphery of melt to be vertical; The position of top and S/L interface of melt had a direct effect on the meniscus shape. The meniscus profile varied from cone-shaped through column to cucurbituceous shape with the increase of top height or decrease of S/L interface.

对圆形截面、矩形截面感应圈来说D/H分别取0.7～1.1，0.4～0.6较为理想；对多匝感应圈来说，在匝间处存在漏磁，易引起熔体表面起伏不平，这种现象在用圆铜管绕制的感应圈中较为明显；屏蔽—抑流系统的加入可以消除电磁搅拌，使熔体稳定性增强，同时可使形态呈锥形的熔体侧面变得垂直成为理想形态；熔体上液面、固/液界面的选位直接影响成型形态，上液面升高，熔体形态经历锥形→柱形→葫芦形的转化，固/液界面下降则经历锥形→葫芦形的转变。

In addition, larger temperature difference of heat transfer can enlarge the maldistribution of the temperature.

通过比较二次封头和普通封头换热器截面温度分布情况发现：二次封头结构明显地改善了换热器出口截面温度分布，尤其在大Re下，温度分布不均匀性的改善效果更加显著，同时换热效能可增加7%左右。

The element stiffness matrix of this variable section beam is derived based on principle of virtual displacement.

对圆锥形变截面梁单元进行了分析，采用有理函数的位移模式，利用虚位移原理，推导出该变截面梁单元的刚度矩阵

On the basis of the improved structure and under the premise of meeting specification requirement, the light steel door-truss structure is optimally designed by changing, cycle checking and gradually reducing the cross section size of overall structural member with the ANSYS parametric design language. The mechanical properties such as changes in stiffness, strength and stability of the optimized structure are completely analyzed under three load cases.

基于改进结构，在满足相关规范的前提下，利用ANSYS软件的参数化命令流语言（ANSYS parametric design language， APDL），通过改变结构杆件截面尺寸，对整体结构杆件的截面采用循环校核、递减尺寸，并对轻钢门式桁架结构进行优化设计，分析了优化结构在3种荷载工况组合条件下的整体刚度、强度及稳定性等力学性能的变化，给出了改进前后与优化前后结构的力学特性对比。

Selected Exhibitions : 2008 /"The Third Guangzhou Triennial : Farewell to Post-Colonialism", Guangdong Museum of Art, Guangzhou,China / 2007 /"Alchemy of Shadow : 3rd Lianzhou International Photo Festival", Lianzhou, China / 2006 /"A Yellow Box In Qingpu: Contemporary Art and Architecture in a Chinese Space", Shanghai /"Micrology, the Politics of Realism Chinese Contemporary Art Exhibition, Macao / 2005 /"In the Depth of Reality : China Contemporary Art Exhibition", Hangzhou /"Gift, Contemporary Art Invited Exhibition", Hangzhou / 2004 /"Formatting: New Media Art Project", Hangzhou /"Labyrinth : the Second Chinese New Media Art Festival", Hangzhou / 2003 /"Experimental Art Project in White Pagoda Mountain", Hangzhou /"Links: Contemporary Art Exhibition", Hangzhou /"Exhibition of Chinese Young Artists, Hangzhou

郑端祥，1977年生於中国福建，现任教於中国美术学院造型基础学部。作品《时间的横截面III》於2006年展出於澳门艺术馆"显微境。观：中国当代艺术展"，同年影像装置《时间的横截面之夜游记》展出於"黄盒子在青浦"，2007年於连州国际摄影展展出《失忆系列》和《工厂系列》。重要展览有： 2008年/雕塑中国，香港汉雅轩/广州三年展：与后殖民说再见，中国广东美术馆、中国第三届媒体艺术节：四季，中国杭州，2007年/中国当代艺术展：在瓦伦西雅55天，西班牙瓦伦西雅、首届今日文献展：能量－精神。身体。物质，今日美术馆，中国北京、夜间摄影，香港汉雅轩，2006年/。盒子，中国上海、显微境。观：中国当代艺术展，中国澳门当代美术馆

At first step, the processor before the deformable body contact the end face of cone die cavity regarded as an extrusion process. The minification of core boss's cross-section regarded as compressibility of direct extrusion, which acted as definition factor when construct the Direct Extrusion Model element. Another step, the model element of flat punch extrusion on wedge piece process was constructed when propose the process of deformable body overflow die corner. In this way the spherical end face of blank looked as cone end face one, t he approximate treatment is one of originality innovation in this paper. At last, the two elements have been connected and constructed the model element of cone boss part's deformation in the open die forging.

对于锥形凸台成形的第一个特征时段，即坯料和锥形凸台型腔的端面接触之前的变形过程，本文将凸台的截面缩小率转换成挤压成形的压缩率并以此为界定，建立了不同截面缩小率时的锥形模正挤压的模型单元；对于锥形凸台成形的第二特征时段即锥形模的角部充满过程，在详细考察锥形型腔端面对变形过程影响的基础上，将变形体的球形端面近似成锥面建立了平冲头挤压楔形体的模型单元；最后将前述两种模型单元有机连结，构建了开式模锻中整个锥形凸台成形过程的定量描述。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。