查询词典 stress

The load fatigue stress coefficient used in the load stress calculation for the porous concrete as undersurface of the cement concrete pavement were derived.

根据疲劳方程提出了以多孔混凝土作为水泥混凝土路面下面层应力计算的荷载疲劳应力系数，沥青路面基层层底拉应力验算的抗拉强度结构系数，建立了进行路面结构设计的轴载换算模型。

The results showed that hyperhomocysteinemia was induced by restraint stress. The highest CBS enzyme activity was seen in rat livers. A decrease in hepatic activities of CBS was found in restraint stress rats. The 29.4%±2.5% reduction in the activity of CBS was accompanied by a 44.1%± 3.4% decrease in its mRNA level. CBS enzyme activity was slightly elevated in the kidney of stressed rats while it was almost undeterminable in the cardiovascular system.

结果可见，束缚应激可导致大鼠高同型半胱氨酸血症的发生； CBS在肝脏具有最强的代谢活性，肾脏其次，而心脏和血液中活性极低；应激大鼠肝脏CBS活性和mRNA水平均显著降低( P 。05)，应激3周时分别为对照组的70.6%±5.9%和55.9%±4.3%。

The ratio of stress to strain, or the stress per unit strain, is called an elastic modulus of the material

应力与应变之比，即每单位应变的应力，叫做该材料的弹性模量。

Compared with the displacement method, the unit initial stress method has high precision, simple and efficient characteristics, in particular, it can be more convenient and accurate to calculate the stress intensity factor of three-dimensional crack tip, so it is worth promoting.

单元初始应力法与位移法相比，具有精度高、简捷、高效的特点，可以较为方便且精确地计算三维裂纹尖端的应力强度因子，值得推广。

A set of mathematical expressions are derived including geometrical matrix,stress matrix,stiffness matrix of weak plane element,equation of equivalent nodol load caused by unit initial stress in element.

文中推导了弱面单位的几何矩阵~6，应力矩阵~6，刚度矩阵~6以及单元初应力引起的等效结点荷载{P}等计算公式。它们有别于一般文献所列算式。

Methods: Human osteoblasts were cultured on flexible-bottomed plates and subjected to 8% elongation by stress unit at 6 cycles/min (i.e. 5-s elongation and 5-s relaxation) for 24 hours in the experimental groups. Control group did not exert any stress.

通过体外细胞加载系统对培养的人成骨细胞施加8%形变率、6周／min的周期性牵张力24 h，应用基因表达谱芯片技术对人成骨细胞中mRNA表达水平进行对比杂交分析，检测周期性牵张力加载组成骨细胞基因表达谱的变化。

Slipper type universal coupling"s fork joint and palm end are the weak parts of the main transmission system. In this article, the two parts" intensity values are obtained through finite element analysis . After making three-dimensional computer simulation analysis by ANSYS, the results show that the middle arc of the fork joint in loaded side and the intersection of fork bore and the arc are the danger location, where the stress is largest and stress concentration is serious.

本文对轧机主传动系统机械部分的薄弱部件进行强度计算，即对滑块式万向联轴器的主要零部件的强度进行有限元分析，通过ANSYS有限元分析软件进行三维计算机仿真，由计算结果可知，在叉头受载侧过渡圆弧段中部、叉头镗孔与过渡圆弧交接处这两个部位的应力最大且存在严重的应力集中，考虑到单元总数限制及计算时间等因素，整体模型的网格划分较疏，不能反映倒圆角等细节。

In the article the stress analysis of the universal joint was studied by using the method of three photoelasticity.The dangerous parts and points of the important components are pointed out,and the stress data of the dangerous points is calculated.

运用三维光弹性实验应力分析的方法，对叉头和扁头的危险区域进行了细致的三维切片光弹性实验分析，得出的结论是：叉头的危险区域是两侧后圆弧部位，扁头的危险区域是水平内侧圆弧部位。

If you are a person who stays unmotivated because of high levels of stress in your life, try to locate the sources of dangerous stress in your life.

如果你由于生活中的巨大压力而变得一蹶不振的话，那么设法找出危险压力的出处。

The static loads were simulated according to the restored and unrestored situation. The stress distribution and stress level of the second molar was recorded.

并在修复前对两个基牙加载，修复后对固定桥进行加载，观察第二磨牙牙槽骨的应力分布变化情况。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。