查询词典 strain

Based on the elastoplastic theory and test data under the plane strain condition, it is assumed that the relationships between the principal stresses in plane strain direction and those in the other directions are bilinear.

建议的主应力关系体现土体在平面应变条件下的变形机制，在b-R坐标内通过3个关键点：初始点（1，1）、一维固结应力状态点、破坏应力状态点。

A problem of cable force optimization of cable-stayed bridge is equated as a nonlinear implicit optimization model. In the mathematical model, the object function is minimizing summation of bending strain energy and axial strain energy, and the constrain conditions are nonlinear and related to reasonable finished dead state. The optimization model is solved by projection gradient method, fully considering all kinds geometric nonlinearity.

把超千米级斜拉桥的索力优化问题归结为非线性隐式优化的数学模型，以系统最小弯压应变能为目标，根据合理成桥状态指定各种非线性约束条件，利用投影梯度法进行优化问题的求解，求解过程中充分考虑了各种几何非线性的影响。

Next, BALB/c mice were orally infected with Y. pseudotuberculosis and its ompR mutant to study metabonomic variation of different intestine-associated organs after 24 h infection. The results showed that a majority of metabolites were decreased during this acid adaptation process, but phosphoenolpyruvate, 5'-GMP, 5'-AMP, 5'-UMP, GDP/GTP of wild type strain and lactate, Tyr, phosphoenolpyruvate, 5'-AMP、GDP/GTP of the ompR mutant strain were increased.

为了探讨病原细菌感染动物后特别是在酸性环境下代谢物的变化规律，首先在体外模拟假结核耶尔森氏菌及其全局性调控因子OmpR突变株在适应酸性环境时所引起的菌体自身的代谢变化，然后通过BALB/c小鼠口服感染耶尔森氏菌，研究小鼠感染病原细菌24h后各种相关器官的代谢变化。

The elements of optical waveguide strain-stress measurement and fiber bragg grating strain-stress measurement system based on wavelength division multiplexing and spatial division multiplexing are emphatically discussed; the displacement regularity of stress field induced by roadway group excavating and short wall mining process is analyzed in detail; the concept of roadway "equivalent radius","correcting coefficient of coal and rock mass mechanical parameters",and "mining affecting coefficient" is put forward; the calculation method of "equivalent radius", the method of inversion of "correcting coefficient of coal and rock mass mechanical parameters", and the "mining affecting coefficient" determination method with the field measurement results and so on are provided.

重点研究了光波导应力应变测量原理，以及基于波分复用和空分复用技术基础上的布拉格光纤光栅应力应变测量体系；详细分析了近距离巷道群开掘工作和短壁体系回采工作诱发的应力场的重新分布规律；提出了巷道"当量半径"、"煤岩体力学参数修正系数"、"采动影响系数"等概念；给出了"当量半径"的计算方法、"煤岩体力学参数修正系数"的反分析求算方法、以及通过现

To the crack in the rail surface, the effect of longitudinal location on the distribution of the elastic-plastic stress and strain in the railhead is calculated. The maximum stress around the crack in the rail surface over the yield stress and the steel around the crack has plastic strain.

对于条纹状钢轨表面缺陷，主要计算了不同横截面位置条纹状钢轨表面缺陷对轨头内弹塑性应力场和应变场的影响，条纹状钢轨表面缺陷的存在使其周围最大等效应力超过了钢轨材料屈服极限，导致该位置钢轨发生了塑性应变。

A sort of strain sensor that is made of cycloidal stretch film piece and microbent modulation construction and a method of distributed optical fiber strain sensor by Optical Time-Domain Reflectometer are brought forward.

摘要提出了一种用圆形弹膜片和微弯调制机构进行应力传感，用光时域反射探测技术进行测量的分布式光纤应力传感方法。

To validate the FEM calculations of the cylinder block of a six-cylinder in-line diesel engine,the dynamic strain-stress and temperatures of the main bearing wall s and caps were measured on engine testbed with strain-gauge and resistance thermometer.

为评估某直列6缸柴油机缸体有限元强度分析结果，采用应变电测法实测了该发动机缸体上可能的危险部位主轴承座、主轴承盖动态应力以及这些部位的温度。

Different biological and ecological characteristics, virulence, sporulation, conidia bourgeon, Protea-Bse activity leve and colony growth of 6 strains of Beauveria bassiana were measured respectively. The results were calculated by grey relational analysis and the optimum sequence was built from the professional comparison of each strain's characteristics. Two strain's have a potential of appling in mass production, BD-B015 and BD-B038 were abtained. The revisory mortality to Laphygma exigua Hubner were 88.33% and 86.70%.The infected rate were 86.67% and 85.27%.

测定初筛获得的6个球孢白僵菌菌株的毒力、产孢量、萌发率、胞外蛋白酶活性及菌株生长速度等多个生物、生态学指标，从专业角度构建最优序列，经灰色分析和不同菌株毒力效价显著性比较，筛选出了两株具有较大生产潜力的优良菌株BD-B015和BD-B038，对甜菜夜蛾的校正死亡率分别为88.33%和86.70%，僵虫率分别为86.67%和85.27%。

It has resulted the critical median stress of PMMA has nothing to do with strain rate at the range of the given strain rate, so it is represented as a parameter to scale the break of PMMA.

实验结果表明，PMMA 材料断裂时的中值应力与应变率无关，可将其作为一个表征 PMMA 材料破坏的参数。

The strain of Wolfiporia cocos isolated from pultaceous sclerotium secreted the more melanin than that of the strain isolated from rigid sclerotium.

通过分离不同生长状态的菌核，观察到自生长泡松的菌核分离的茯苓菌株比从僵硬的菌核分离的菌株容易分泌黑色素。

Anna: No, I've got a hangover.

不是，我昨晚宿醉了。

We head into the mountains in Su's new Land Cruiser, stop for lunch at a scenic restaurant and then hang around drinking beer and eating fruit as two of his employees attempt to lure the birds with a tape recording of the fowl's mating call.

我们坐上苏的巡逻车向山顶出发，在一家风景优美的餐馆吃了中饭。然后我们喝着啤酒吃着水果四处逛。