压应力

Because the increasing of dip angle can lead to special strata behavior which cause difficulties to mining, The strata behavior theory can not be simpely borrowed from that of flat and gently inclined seams. In order to cut down roof accidents and increase production efficiency, the strata movement and stress distribution must be reassessed for seam with deep dip angle.

煤层倾角增大带来了矿压显现的特殊性和开采上的困难，不能再简单地借用水平和缓倾斜煤层的矿压理论，而必须对大倾角煤层围岩运动与应力分布予以重新评价，以降低顶板事故，提高生产效率。

For the first time, Curie temperature and the properties were improved obviously by A-site substitution with A-deficiency, based on the effects of atomic radius and stress on the Curie temperatures.

结合原子半径和应力对材料居里温度的影响，首次利用A位含缺位的复合取代CaBi〓Ti〓O〓中位于A位的Ca，获得了居里温度和压电系数同时大幅度提高的高T〓压电陶瓷。

Based on a bounding surface model of the concrete and elastic-plasticity constitutive relationship of steel, this paper establishes the finite element model of the self-stressing concrete filled steel tube short column under axial load and eccentric load. the mechanical performances are analyzed.

对本课题组共进行的37根轴压短柱的试验结果分析，采用分解分析的方法，回归出钢管自应力免振混凝土轴压结构核心混凝土的等效单轴本构关系，与传统的弹性、塑性、断裂、损伤等力学模型相比具有简单实用的特点，便于进行工程计算。

It shows that if confined pressure σ3 and temperature T are constant, theeffect of axial stress σ1 on creep and creep rate is similar to that of clay stone.

通过对盐岩进行的不同温度和应力水平下的三轴蠕变试验表明，在围压σ3 和温度 T 不变时，轴压σ1 对蠕变和蠕变率的影响与泥岩相同。

When 20 kg acceleration is inputted, the potential distribution of piezoresistor device terminals, the corresponding stresses of the piezoresistive element and the current location are also obtained, which testifies the anti-over loading ability from the stress location in the fix-end cantilever.

在20kg加速度的输入下，得到了压阻块应力的分布，以及电流的大小及分布，和悬臂梁的应力大小及分布，验证了加速度计的抗过载能力。

Area of column of distributinging rule, coal forms the stress that combines coal post lower part the incidence of tall stress area and stoping model accident, the analysis pounds mine to press the course that produce and intensity, take different precaution and processing step in time, obtained very good result, get admissive in practice.

结合煤柱下方的应力分布规律、煤柱区域形成高应力区的影响范围和回采典型事故，分析冲击矿压发生的过程和强度，及时采取不同的预防和治理办法，取得了很好的效果，在实践中得到认可。

First, systematic study on propagation, reflection and interaction of axial stress wave is made to deduce the calculation equation for axial elastic and plastic stress wave, which fit for analysis of impact buckling of axial compression member.

本文首先对轴向应力波在构件中的传播、反射及相互作用进行系统分析，推导出适合轴心受压构件冲击屈曲分析的轴向弹、塑性应力波计算公式。

The project rockburst occurs much in the depth portion understructure work, belongs to three bearing conditions, three principal stress disparities are not big, the energy liberation becomes more and more difficult, therefore under the high crustal stress condition the rock mass can deposit the massive energies of deformation.

工程岩爆多发生在深部地下工程中，属于三项受压状态，三个主应力差距不大，能量释放变得越来越困难，高地应力条件下岩体能够储蓄大量的变形能。

The initial creep stress method and the finite element method for unstable temperature field are used in the stress analysis of RCD concrete gravity dam. The true process of RCD dam placing is modeled by load analysis.

基于不稳定温度场的显式有限元解法和徐变应力的初应变法，对碾压混凝土重力坝进行了模拟坝体升程的施工过程和蓄水、放水运行全过程的温度、应力仿真计算。

The basic Arrhenius equation in the physical-chemical reaction is introduced to control the hydration process of the cement.

阐述了水泥水化反应遵循物理化学反应中Arrhenius方程的规律，用&等效龄期&的概念考查了温度对于混凝土弹性模量的影响，进行了某碾压混凝土拱坝施工期温度场的计算，并利用该温度场及&等效龄期&进行了应力场的计算，该应力计算中包含了温度及自重徐变应力。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。