应力

The action mechanism of back filling body and the control of back filling on rockbursts two parameters (stress release rate and average jamb stress) are researched in the thesis. The essence of filling reducing rockburst occurrence and increasing of recovery ratio is discovered.

本文研究了充填体的作用机理和充填对岩爆的两个控制参数-应力释放率和平均矿柱应力的控制，揭示了充填减缓岩爆发生、提高矿石回采率的内在本质。

The numerical simulation results show that the calculated stress value of gate crane jib exceeds the allowable structural strength in certain observation points, but less than ultimate strength of the metal materials.

由数值仿真结果表明：门座起重机臂架系统某些观测点的计算应力值已超过结构强度许用应力，但是小于金属结构材料强度极限。

The changing laws of overall stress level accord with varying of structural parameters of floor plate, head plate, jobbing sheet, standing partition board and side plate of inlet port and exhaust port were investigated, character rules of cylinder head's stress varying with parameter changes were gained in the thesis.

在对气缸盖结构参数的研究中，分析出气缸盖的底板、顶板、中隔板、缸体丝对立墙、进排气道以及进排气侧壁的总体厚度变化对气缸盖整体应力水平的影响规律，分析总结了气缸盖应力随这些结构参数变化收敛的特性规律。

3D finite element model of concrete pavement in transverse joint with dowel bar s or without dowel bar s is established by 3D finite element numerical analysis method.

建立接缝无传力杆及设传力杆时水泥混凝土面层结构的三维有限元模型，运用数值分析方法，分析接缝处水泥混凝土面层的荷载应力、弯沉值和弯沉差，研究了地基模量、传力杆直径对荷载应力及弯沉差的影响规律，并对条件相同的计算结果进行了对比分析。

In addition, longitudinal or transverse residual stress distribution of welded joint can be improved by using of trailing peening.

此外，焊接接头的纵向及横向残余应力分布状态均有了很大程度的改观，应力水平相对较低，有利于焊接结构的尺寸稳定。

A theoretical analysis shows that the non-zonation of ACC in the region of Kerguelen Plateau is due to the changes in potential vorticity of the water column caused by the curl of the ratio of wind stress to topography. The bifurcation and turning of ACC is related to the curl distribution.

理论分析表明，凯尔盖朗海台区ACC的非纬向性主要是由风应力和海底地形的变化造成的，它通过该海台时的南北路径的分叉和转向与该海区风应力与水深之比的旋度的分布相吻合。

And that impact on the three-dimensional velocity and the shear stress distribution in different L/D and T/D were also analyzed.

对比分析了同一来流情况，不同纵向间距比L/D和横向间距比T/D的流场特性及床面剪切应力分布，探讨了L/D和T/D对三维流速分布、床面剪切应力等的影响。

Based upon the above causes, taking the Hongmiao colliery"coal bed 5-1 south working face conveyance laneway on Sector 5 of Pit 2"for the project example, it can be known through primordial rock stress test result that Sector 5 of Pit 2 belongs to high-stress area, whereas wall rock is a class V terrane with terribly labilization.

基于上述原因，以红庙矿"二井五采区5-1煤层南一工作面运输巷道"为工程实例，通过原岩应力测定成果可知，二井五采区属于高应力区，围岩属于V类极不稳定岩层。

Bray (1977) experience formula deal with distribution of principle stress under transversely isotropic rock with single joint, it could interpret distribution of principle stress while changing the laccolith's properties though, the influence proportion within parameters is hard to know.

Bray(1977)经验公式为一套处理单组节理下横向等向性岩体内主应力分布之简单公式，但变化岩盘性质时，仅能了解参数对主应力分布之改变，并无法得知参数间之影响比例。

The distribution of microhardness is not uniform across the anodic film for the most specimens and the general trend is that the value of the hardness is higher both in the outer film adjacent to the surface and in the inner film near the interface between film and substrate for the specimens with type Ⅱ and type Ⅲ anodizing technology. The measured modulus for anodic film with type Ⅲ anodized is 80.77Gpa. The thermal expansion coefficients of anodic films are measured by two different methods based on X-ray diffraction technique. One way is to detect the lattice spacing change of crystalline phase in powder specimen of anodic film as the increment of temperature by powders of anodic film; and the other way is to determine the thermal stress by entire specimen, that is, the anodic film and the substrate attached together.

利用X射线衍射的方法采用两种不同手段对氧化膜的热膨胀系数进行测试，一种方法为采用氧化膜粉末样品，测量温度变化过程中晶面面间距的改变，进而推出其热膨胀系数；另一种方法为整体试样测试氧化膜中的热应力，通过热应力和热膨胀系数之间的关系计算氧化膜的热膨胀系数。

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％。