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failure stress相关的网络例句

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与 failure stress 相关的网络例句 [注:此内容来源于网络,仅供参考]

The research contents mainly include: First, the influence of foundation constraint condition to the temperature stress is analyzed, the temperature stress formula of ultra-long concrete anchor plate is deduced, then the influence of length to structure crack can be gotten from the formula. Second, a breathing method is set up to solve the problem of temperature stress in ultra-long concrete constructions. By setting the sliding floor, a breathing system is built up and the temperature stress reduced distinctly. Third, the effect of prestress technique in the control of temperature stress is analyzed, it is simulated and calculated through FEA to get the right way to apply the prestress. Forth, the delay of temperature field and unsteady conduction is considered, the temperature field of ultra-long concrete structure with later poured band is simulated, then temperature stress distribution after casting the concrete is calculated, finally the effect of later poured band to temperature stress of ultra-long structure is analyzed.

本文的研究内容主要包括:(1)分析了基础约束对超长混凝土结构温度应力的影响,推导了超长混凝土地基板温度应力公式,从而得出长度对结构裂缝的影响;(2)针对超长混凝土裂缝问题,提出了一种可呼吸的解决方法,通过设置滑动层,使结构成为一种"可呼吸"体系,从而有效的降低温度应力;(3)分析了预应力技术在控制超长结构温度应力中的作用,通过有限元模拟计算,得到合理的预应力施加方式;(4)考虑温度场的滞后效应及不稳定传导,对带后浇带超长混凝土结构浇注后的温度场仿真模拟,计算浇注后的温度应力分布,分析后浇带对超长结构温度应力的影响。

There were the same load characteristics of 1MW, 1.5MW and 2MW blade model, which the tensile stress, shear stress and torque of section were linearly increased with increasing of wind speed; and tensile stress of all test sections of the blade was changed greatly, but shear stress was basically the same in the same wind speed. The shear stress and tensile stress were increased obviously in the place of 388mm to centre of gyration of wind rotor comparing with other section where the phenomenon of stress concentration had for 1.5MW blade model.

对1MW、1.5MW、2MW叶片模型有相同载荷特性,各截面处的拉应力、剪应力、扭矩随风速增大而增大,呈线性增加规律;在相同风速下,叶片各测试截面的拉应力值变化较大,而剪应力值基本相同,但对1.5MW叶片模型,在距风轮回转中心388mm处与其它截面处的剪应力、拉应力比较明显增大,有应力集中现象。

The plastic deformation induced due to cyclic rotation of principal stress axes alone can be in the same magnitude as that due to shear with fixed principal stress axes. 2 The volumetric strain due to shearing of cyclic rotation of principal stress axes is found to be composed of a reversible dilatancy component and an irreversible dilatancy component. The former is characterized by its reversibility and is independent of past shear history, the latter by its irreversibility increases with the increase of cycle number yet its increase rate decreases with its accumulation. 3 The obvious non-coaxiality between directions of the principal stresses and principal strain increments is found and its degree depends largely on the change of shear stress component. 4 The intermediate principal stress has considerable effects on the deformation behavior of sands in the condition of cyclic rotation of principal stress axes. The accumulation rate of the irreversible dilatancy component increases with the increase of the intermediate principal stress parameter.

具有初始各向异性的砂土在纯应力主轴循环旋转排水条件下的主要变形规律为:①纯应力主轴循环旋转可产生与应力主轴固定单调剪切处于同一数量级的塑性变形;②纯应力主轴循环旋转引起的剪切体变包含可逆性剪切体变分量和不可逆性剪切体变分量两部分,其中可逆性剪切体变分量在一周内可完全恢复,基本与应力历史无关;不可逆性剪切体变分量随循环周数的增加呈单调增加,且增加速率随其自身累积值的增大呈减小趋势;③应变增量主轴与应力主轴之间的非共轴现象显著,且在一周内具有分段性;④中主应力对应力主轴循环旋转条件下砂土的变形特性有重要影响,不可逆性剪切体变分量的累积速率随中主应力系数的增加而增加。

Results: 1. The value of all experimental indexes decreased significantly after heat stress, and reached the lowest at the time 2-8 hours after heat stress. This indicates that the immunity of the mice is damaged to the largest extent at 2-8 hours after heat stress. 2. L-arginine supplementation with appropriate dose could remit the acute atrophying of thymus and spleen tissue caused by heat stress. 3. After L-arginine supplementation with appropriate dose, the lymphocyte proliferation, the level of concentration of IL-2 and * expression of IL-2R raised in the group with room temperature; in the heat stress group the level of three indexs decrease significantly. Furthermore, the decrease of the group given 1 .Smglg.bw L-arginine is the smallest. This result indicates that the concentration of 1 .Smglg.bw L-arginine supplementation could remit the depressment of the immunity caused by heat stress. 4. The [Ca2~] in activated thymocytes of the group with L-arginine -2- supplementation is significantly higher than that of the group with water supplementation. This indicates that L-arginine supplementation could protect thymoeytes of mouse under heat stress. We also found that the fluorescence intensity of [Ca2~] in activated thymocytes of the group given 1 .Smglg.bw L-arginine is the highest.

结果:1、热应激后小鼠的各项免疫指标均有显著性下降,其中在2.8小时降到最低,提示在这个时间段小鼠的免疫功能受到最大损害;2、适量补充精氨酸有助于缓解热应激导致小鼠胸腺和脾脏的急性萎缩;3、常温组,补充适量精氨酸后小鼠淋巴细胞增殖活性、IL-2的浓度及IL-2R的表达均有显著性上升,而热应激后三指标均显著降低,其中在精氨酸给予浓度为1.5mg/g.bw时三指标的降低程度最少,提示该浓度可最大程度缓解热应激对小鼠免疫功能的抑制;4、补充精氨酸组的活化胸腺细胞[Ca~(2+)]较给水组有显著性上升,说明精氨酸对热应激小鼠胸腺细胞具有保护作用,并发现在精氨酸给予浓度为1.5mg/g.bw时活化胸腺细胞的胞浆钙离子荧光强度达到最大;5、热应激后小鼠血清NO的浓度均有不同程度的上升,补充精氨酸后血清NO上升更加明显,但并非随精氨酸给予浓度的增加而增加。

This thesis presents the preliminary study of the influence of sentence stress on prosodic features in Mandarin, and of the relationship between duration and pitch under different sentence stress levels. The results show that: The pitch is the most important factor which carries the sentence stress, with the increase of the sentence stress level, the peak of distribution contour of pitch moves towards high frequency area. In the case of"Stress"and"Light", two peaks are found in the distribution contour of duration, which means that the duration of some words are affected by sentence stress, but of others are not. The relationship between pitch and duration in"Normal","Stress"and"Light" are un-correlated, positive correlation and negative correlation respectively.

研究了汉语语句重音对音长和音高的影响、及音长和音高之间的相互关系,结果指出:(1)音高是汉语语句重音的基本表达手段,随着语句重音级别的提高,音高的统计分布曲线向高频方向推移;(2)在连续语流中的词被&重读&和&轻读&的情况下,音长分布出现双峰,表示它们的音长存在着受语句重音的影响和不受语句重音的影响两种情况;(3)词在&正常&、&重读&和&轻读&三种情况下,音高和音长的相互关系分别是:不相关、负相关和正相关。

I gritted Yutu nausea impulses, and then:"But dense hair failure; There are 56 legs scars failure; Mild-lap legs failure; Facial ordinary, with no failure; There is a palm-size back the characteristics of the failure of failure; Most unbearable is your lower body so uncoordinated about proportion ..."

我忍着恶心欲吐的冲动,接着道:&但体毛浓密,失败;腿上有五六处伤疤,失败;有轻微的罗圈腿,失败;脸型普通,毫无特色,失败;背上有块巴掌大的胎记,失败中的失败;最让人难以忍受的是,你下体那玩意左右比例不协调……&

The anchor anchoring depths could be regard as critical value for concrete edge failure and anchor failure. When the anchor edge distance was shorter than anchor anchoring depth, the failure mode was concrete edge failure and anchor space length had some influence on cracking load. When anchor space length was longer than anchor anchoring depth, the failure mode was anchor failure.

锚栓的锚固深度可以认为是混凝土边缘破坏以及锚栓破坏的临界边距,对于锚栓边距较小的情况,以混凝土边缘破坏时的承载力为标准,锚栓间距对于试验的开裂荷载有影响;对于锚栓边距较大的情况,以锚栓的破坏为标准。

On the basis of the achieved result and the effect of stress such as minor principal stress, intermediate principal stress, hydrostatic pressure, stress Lode degree, a generalized hyperbolic failure function adapted naturally with the envelope form of Mohr-Coulomb criterion is proposed for brittle rocks; and a smooth failure function acquired by Yu Maohong is also presented. Thus, a generalized polyaxial strain energy strength criterion is created.

在分析脆性岩石强度的静水压力、中间主应力、最小主应力以及应力Lode角等4种效应的基础上,提出子午面上与Mohr-Coulomb准则包络线自然衔接的广义双曲线型破坏函数及八面体偏平面上光滑角隅型破坏函数,从而建立非线性广义多轴应变能强度准则。

The results showed the maximum cyclic stress of CFRP bar should be under 70 percent of ultimate tensile stress; when the maximum cyclic stress decrease 5 percent of ultimate tensile stress, the fatigue life of CFRP bars increase generally 10 times; with the decrease of cyclic ratios, the fatigue life of CFRP bars decrease heavily; for the brittleness, CFRP bar should possess a higher reserve of strength, the margin of safety against failure is a necessity; according to experimental cyclic stress-fatigue life curve, the fatigue behavior of CFRP bar is much better than the fatigue behavior of Q235 steel.

将纤维复合材料用于土木工程结构的研究成果,已应用于实际工程【2j_国外对CFRP筋的一些短期性能以及CFRP筋构件的粘结性能、CFRP加筋混凝土结构的抗弯性能等都做了大量的研究,但对其长国家自然科学基金50278029,50538020和交通部西部交通科技200l431882021资助项目。2OO6年2月13日收到初稿;2006年9月4日收到修改稿。本文联系人:欧进萍,院士期性能如疲劳性能的研究还不够

Conclusion]1? It showes a higher stress dodge in the calcar femorale after using various kinds of prosthesis implantation? After using CFR/PSF of lower elastic modulus as handle, the stress dodge rate is lower in femur, but the interface stress is higher, and this is the main factor and reason for the prosthesis loosening? 2? The stress force rule meets the design principle that the stress force decreases gradually in the bone interface from proximal to distal? The stress value in different combination of same prosthesis handle has no significant difference, that showes mechanical factor is not the main standard for selecting prosthesis combination?

[结论] 1、各种假体植入后均在股骨距处形成较高的应力遮挡,而用弹性模量较低的CFR/PSF作为柄,其股骨相应区域的应力遮挡率较低,但股骨相应界面应力较大,而界面应力过大是产生假体微动主要因素。2、股骨界面从近端至远端呈逐渐增高趋势的应力规律符合该假体的设计原理;相同假体柄的不同组合其股骨和髋臼相应界面应力值无明显差别,实验表明力学因素并不是选择假体组合的主要标准。

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推荐网络例句

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代,船员们担心他们会因为无风而无法在海洋上航行。

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Speak with contempt of none,form slave to king,the meanest bee,and will use,a sting.

别用 言词贬低任何人,无论国王还是奴隶。最卑戝的蜜蜂也会用它的毒针蜇人。