向下的
- 与 向下的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The paper includes:The author calculate the structures inner force and displacement of the free end , analyze the influence of the height and the value of pretress of cable by making use of ANSYS 9.0 soft, pose the concept of critical prestress,conclude the function relation between displacement of the free end, initial strain and the height of cable ,analyze the dynamic properity and point out that Newmark-β method should be adopted when we analyze the dynamic properity of the cable-stayed spatial structure with direct integral test to guarantee the contribution of high mode,finally conclude the functional relation among coefficient of earthquake inner force, initial strain and the height of cable, wish to get some helpful conclusion applied to cable-stayed spatial truss design.
本文系统介绍了斜拉空间桁架竖向地震反应的分析理论与方法、详细分析了斜拉空间桁架结构在静力和竖向地震作用下的受力性能,主要内容包括:利用通用有限元软件ANSYS9.0计算了斜拉空间桁架在静力和竖向地震作用下内力及自由端位移分布规律并得出地震内力系数与节间位置、预应力以及斜拉索高度之间的函数关系;详细分析了斜拉索中施加的预应力以及斜拉索高度的变化对于该种结构内力及自由端位移的影响并提出了斜拉空间桁架的临界预应变概念,进而得到了自由端位移与初始预应变以及斜拉索高度的函数关系,即:△=-(40h+2180)ε+9.8;分析了该种结构的动力性能,并指出:在时域内采用直接积分法计算该种结构的动力响应时,应该考虑采用不引起振幅率减小的Newmark-β法,以保证高阶模态响应的贡献仍然保留在响应中而不致于被忽略。
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Downgrowth of the epidermis is serious, in the case of HA neither clear inflammatory cells infiltration nor marked downgrowth of the epidermis was observed in every observation stage. The material bind tightly with skin tissue. The histocompatibility of HA for percutaneous device is fine.
结果表明:钛合金材料周围组织局部慢性炎性细胞浸润,轻度充血和水肿,有严重的表皮向下生长;HA材料周围组织未明显炎性细胞浸润,各观察期均无显著的表皮向下生长,材料与皮肤组织结合紧密,组织相容性良好。
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This chapter emphasizes on the five issues. Firstly, the relation between the transformation from savings to investment and the fund's formation. Its purpose is to reveal the formation way of the funds and how to improve its efficiency of utilization. Secondly, the analysis of the supply behavior of the transformation from savings to investment. It mostly analyzes the savings' behaviors of the government, enterprises and residents and their economic effects. Thirdly, the analysis of the demand behavior of the transformation from savings to investment. It stresses on discussing the enterprise's choices of the financing structures and forms on the premise of pursuing the maximum profit, through analyzing the basic features of each social financial entity. Fourthly, it clearly points out the kinds of transformative mechanism from savings to investment and its impactive factors. Finally, it emphases the importance and realizing path of the transformative mechanism in our country that is changed from combining bank with capital market to the market leading, through analyzing the mechanism and its practice in China.
本章重点讨论五个问题:第一,储蓄向投资转化与资金形成的关系,目的是揭示资金的形成途径及如何提高其使用效率;第二,储蓄向投资转化的供给行为分析,主要分析政府、企业和居民的储蓄行为及其经济效应;第三,储蓄向投资转化的需求行为分析,通过分析社会各融资主体的基本特征,重点探讨企业在追求收益最大化前提下融资结构和融资形式的选择;第四,储蓄向投资的转化机制,主要探讨了储蓄向投资转化机制及其制约因素;第五,通过对中国储蓄向投资转化机制的历史考察和现状分析,明确指出了我国储蓄向投资的转化机制由银行与资本市场并存型转向市场主导型的重要性和实现路径。
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So we can analyse the stability of lattice structure as solid web beam without change its geometry dimension. The out-of-plane stability of bending beam, which is made up with 2 beams and loaded by non-directional force, is studied.
对两节梁组成的弯曲梁在非保向力作用下的平面外失稳问题进行了研究,通过建立每节梁临界状态下弯曲和扭转变形微分方程,根据杆件变形的边界条件以及杆件之间的变形协调关系,得出了一端固定一端悬臂的弯曲梁在非保向力作用下平面外失稳的特征方程。
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First of all, in the study from magnetohydrodynamics equilibrium equations describe the plasma derived from the balance of the Grad-Shafranov equation of the theory of expression, and to analyze its borders in a fixed way to solve the region;then we solved the equation with Variational method in given pressure, and the exact numerical value of poloidal magnetic flux and the profile of the magnetic flux surfaces contours in the definite error range are given.At last, the poloidal and toroidal magnetic field with D-shaped is obtained.
在研究中首先从磁流体力学平衡方程出发推导出描述等离子体平衡问题的Grad-Shafranov方程的理论表达式,并分析其在固定边界区域内的求解途径;然后在给定的压强分布情况下采用基于能量形式的变分法对其进行了数值计算,并在一定的误差范围内得到了极向磁通的大致图像以及等离子体的平衡位形分布;最后求出了D-型截面下的极向磁场以及环向磁场分布。
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Poisson's Ratio—Ratio of lateral strain to axial strain in an axial loaded specimen.
泊松比—轴向负荷下试样侧向应变对轴向应变的比率,与刚性模量和杨氏模量有关
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The theoretic results show that retroreflective intensity increases gradually with accretion of refractive index when refractive index is less than two, but decreases when refractive index is great than two.
研究结果表明,折射率增大,折射率小于2时,回向反射性能逐渐增强,相反,在折射率大于2时,回向反射性能减弱;反射层面积的大小会影响入射光线的完整回向反射过程;最后定义了有效回向反射角度,并给出了玻璃微珠在激光照射下的二维回向反射光照度分布。
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In this paper, preliminary FDS fire chamber to simulate the flue gas generated through the corridor adjacent to the room near the migration laws, an analysis of indoor air flow field and the movement of smoke layer, and through the simulation of fire scenes, in a simple form of visual dynamic display of the entire process of fire, in the simulation process to obtain more accurate fire-related parameters such as temperature distribution, gas flow and heat radiation, and analysis of simulation results through the fire chamber of the flue gas migration characteristics, results showed that the chamber in the absence of fire smoke control measures, the process of the spread of smoke filled the first chamber is at the top, with the passage of time, the proliferation of slowly downward until the entire chamber is full, and then through the corridor smoke quickly spread to the nearby chamber.
本文运用FDS初步模拟了腔室火灾产生的烟气通过毗邻的走廊向附近房间迁移的规律,分析了室内空气流场和烟气层运动状况,并通过对火灾场景的模拟,以简单直观的形式动态显示出火灾发生的全过程,在模拟过程中获得较准确的火灾相关参数,如温度场分布,烟气流动及热辐射等,并通过模拟结果分析腔室火灾的烟气迁移特性,结果表明着火腔室在无防排烟措施的情况下,烟气扩散的过程是首先充满腔室顶部,随着时间的推移,慢慢向下扩散,直至将整个腔室充满,然后烟气通过走廊快速向附近腔室蔓延。
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Design of a high-rise business-living building with double-tower structure with enlarged base ;2. Dynamic response analysis of an asymmetric two-tower tall storeyed building with enlarged base ;3. Based on the mode analysis and time-history analysis of two examples,the vibration characteristics of the connected twin-tower structures with enlarged base in vertical earthquake excitation was discussed in this paper,and the calculating results of the structures with or without connecter,both with enlarged base are compared.
采用平面杆系模型并用静力凝聚法消除结构耦联的水平自由度和转角自由度,结合两个算例的竖向振动模态分析和时程响应分析,探讨了大底盘双塔楼连体结构在竖向地震作用下的振动特性,对比了大底盘双塔楼结构有无连体结构形式的计算结果,得出了这种结构形式在竖向地震作用下的一些特性和具有参考价值的结论。
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In order to make correct assembly, the aluminum-alloy slide rail in 6 m length shall be cut to specified dimension with a slitting saw for steel.
正确的安装方法是将长度为6米的铝滑轨按要求尺寸,用钢材切割锯下好料,将铝滑轨下开口处的一端先预固定在型材框内的铝滑轨嵌入槽处,然后用木榔头,由一端向另一端轻轻地向下敲入型材槽内即可。
- 推荐网络例句
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Do you know, i need you to come back
你知道吗,我需要你回来
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Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.
1〕 杨银书,王祥生,李德昌。安徽省首次发现嗜群血蜱。
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Chapter Three: Type classification of DE structure in Sino-Tibetan languages.
第三章汉藏语&的&字结构的类型划分。