查询词典 stress

Based on the analysis of the process of free orthogonal metal cutting, the theory of elastic-plastic distortion and temperature field was discussed. Yield rule, intensify rule, fluxion rule, types of contact and diathermanous model of metal cutting were also analyzed detailedly. The FEA model of stress field and temperature field of free orthogonal metal cutting were established by the fundamental idea of FEA. State nonlinear, material nonlinear and geometry nonlinear thermal-stress coupling were analyzed by FEA technology. The separate criterion of chip and dispose of contact types were research emphatically.

本文在直角自由切削过程分析的基础上，讨论了金属切削过程中的弹塑性变形理论和温度场理论，详细分析了屈服准则、强化准则、流动准则、金属切削传热模型、接触类型等问题，并利用有限元的基本思想，建立了直角自由切削应力场和温度场的有限元模型，进行了状态非线性、材料非线性和几何非线性的热力耦合分析，重点研究了切屑分离标准的确定、表面接触类型的处理等问题。

The accumulated contributions of main effect QTLs for AC and PC were 35.34%, 37.33% under normal conditions and 53.40%, 58.10% under water stress condition, and the accumulated contribution of digenic epistasis for AC and PC were 66.74%, 57.49% under normal conditions and 48.65%, 36.59% under water stress conditions, respectively.

主效QTL对直链淀粉和蛋白质含量的联合贡献率在非胁迫条件下为35.34%和37.33%，在胁迫条件下分别为53.40%和58.10%；互作位点对直链淀粉和蛋白质含量的联合贡献率在正常水分条件下分别为66.74%和57.49%，在胁迫条件下分别为48.65%和36.59%。

With stress calculation analysis and experimental verification, it could be concluded that when b/s is small (.2), the disalignment could be restored by polishing. When grater, by repair welding with width no more than 100mm Meanwhile, when controlling stress level is .5, allowable value of disalignment and angle deformation could be .7s.

通过应力计算分析和实验验证可以得出：当b/s较小(b/s.2)时，错边可以用磨削方法进行修复；当b/s较大时，可用堆焊方法进行修复，且堆焊宽度H不超过100mm同时，在控制应力水平不超过1.5时，错边量和角变形量的和可以允许在不超过0.7s的范围内。

Taking the seedlings of Dodonaea viscosa, Leucaena leucophala and Tephrosia candida as experimental materials, through drought stress treatment on pot seedlings with watering treatment group as control, the changes of leaf relative water content, relative plasma membrane permeability and proline content under drought stress were studied.

以金沙江干热河谷主要造林树种坡柳、银合欢和山毛豆的苗木为实验材料，通过盆栽苗自然干旱胁迫，同时以浇水处理为对照，探讨了干旱胁迫下3树种苗木叶片的相对含水量、质膜透性以及脯氨酸含量的变化情况。

Taking seedlings of Dodonaea viscosa, Leucaena leucocephala and Tephrosia candida from Jin Sha River as materials, the effects of drought stress on their lipid peroxidation and activity of defense enzymes under natural drought stress were studied in contrast to effects under watering.

以金沙江干热河谷主要树种坡柳、银合欢、山毛豆实生幼苗为材料，通过盆栽苗自然干旱胁迫，同时以浇水处理为对照，研究了干旱胁迫对坡柳、银合欢、山毛豆3个树种丙二醛含量、膜相对透性及保护酶活性的影响。

Our within-subject analysis also showed activation of brain areas associated with negative emotions, including right insula and putamen (11, 38), during the high-stress relative to the low-stress task. The observed activation in the dorsomedial prefrontal cortex ACC and precuneus parietal cortex may ref lect mental arithmetical performance (39) and assessment of the mental state (40) during the serial-subtraction task, whereas the CBF reduction in pre- and postcentral gyri and temporal cortex may ref lect more frequent verbal movement and greater auditory stimulation during counting backward versus serial subtraction.

我们的在之内主题分析也显示了脑子区域的活化作用与消极情感相关，包括正确的脑岛并且putamen (11， 38)，在期间高注重相对低注重任务在连续减法任务期间，被观察的活化作用在dorsomedial前头叶外皮ACC和precuneus头顶骨外皮可以ref lect精神算术对精神状态(40)的表现(39)和评估，而CBF减少前和中央后回和世俗外皮可以ref lect更加频繁的口头运动和更加伟大的听觉刺激在计数期间落后对连续减法。

It is not the most obvious and dramatical situations that cause us stress but rather the everyday trivial proceedings that seem to bring about the most stress.

这是不是最明显和dramatical局势造成压力，而是我们最强调的日常琐碎的程序，似乎实现的。

Objective By way of measure the stress of elastomeric ligatures periodically after three different loads were load on, to evaluate the stress relaxation of it.

目的通过定期测量结扎橡皮圈负载后应力的变化，研究它应力松弛的过程及在不同负载下应力松弛率的异同。

A few years ago, Dr. Elissa Epel, a psychologist who studies chronic stress, came to see me. She asked, 'Does stress have any effect on cell aging?

几年前我就和专门研究长期精神压力问题的心理学家艾丽莎·爱佩尔博士座谈过，她问过我：&精神压力对细胞老化有影响吗？&

So the calculational results of the formulas are emanative. Avoiding to use the empirical coelfficients are in the analytic process and based on the stress-strain relation between core concrete and steel tube the ultimate bearing capacity and the deformation characteristic of the steel-encased reinforced concrete columns are investigated in this paper. Then the reasonable stress-strain model is given for the further work of the damage analysis of steel-encased concrete and aseismatic ductility.

本文在分析过程中尽可能的避开经验公式，从核心混凝土与钢管的应力-应变关系入手，通过应力协调与应变相容的条件对配有圆钢管的钢骨混凝土构件的极限承载能力与变形性能进行研究，提出合理的应力-应变关系模型，为进一步的钢管混凝土结构损伤、抗震延性分析做好准备工作。

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。