reverse stress

Experimental Study of Water-Sandstone/ Limestone Reaction under Triaxial Stress; Application of Single Neuron PID Algorithm for Pressure on Reverse Osmosis System

三轴压力下水与砂岩、灰岩反应的实验研究单神经元PID在反渗透水压力控制中的应用

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Further studies show that repetitive stress induced y →ε martensitic transformation and its reverse transformation in the cyclic course can enhance the fatigue life of Fe-Mn-Si shape memory alloy by reducing crack-tip stress, restraining plastic sliding deformation and delaying the formation and extension of microcracks.

循环过程中的应力诱发马氏体正、逆相变及其相变伪弹性能降低应力集中，抑制塑性滑移变形，减少微裂纹形成的几率，从而提高Fe-Mn-Si形状记忆合金的应变疲劳寿命。

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In market economy developed countries, housing reverse mortgage loan is extended for realization of living out life in retirement with house, which not only raises life quality of the aged, but mitigates social safeguard stress of the state.

而市场经济发达的国家通过住房反向抵押贷款，实现了以房养老，既提高了老年人的生活质量，又减轻了国家社会保障压力。

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Experimental results show that the current gain exhibits a linear relationship with the square root of the stress time, and that the current gain degradation varies with different reverse bias of base-emitter junction.

实验结果表明，电流放大倍数β与退化时间的平方根呈线性关系；不同的反向偏压下，退化的速度也不同。

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The experiments of obtaining stress strain curves in cyclic loading condition are investigated, and the measure-ments of the stress strain curves in reverse loading by using sheet metal compression test and three-point bending test are clarified.

对材料在循环加载条件下应力应变曲线的实验获取方法进行了探讨，重点介绍了板料压缩、三点弯曲实验确定材料反向加载应力应变曲线的原理和方法；

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