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The mechanical strain induces the up-regulation of expression of integrin α2、β1、β3 on the membrane of osteoblasts from 3control group and promoted prolifration and differentiation of osteoblasts from 3control group at 400μstrain. The expression of integrin α2、β1、β3 and Doctorship Thesis of Sichuan University------Abstractsynthesize function of bone matrix in osteobla

上述实验结果提示：16月龄大鼠复制成年人雌激素缺失骨质疏松的模型优于3月龄大鼠骨质疏松模型。2力学刺激可引起正常大鼠和骨质疏大鼠成骨细胞膜表面integrinα2、β1、β3表达

The results indicate that the flow stress of the alloy increases with increasing strain rate and decreasing deformation temperature. The flow stress increases with increasing strain until the stress reaches the peak value, then the flow stress remains constant, which indicates that dynamic recrystallization happens during deformation. The flow behaviors are described by the hyperbolic sine constitutive equation, and the activation energy calculated is 337.75 kJ/mol. The as-forged microstructure consists of refined α2/γ and γ grains, and the grains are much homogeneous than before. The B2 phase distributes uniformly at the grain boundary of α2/γ and γ grains. The B2 phase decreases with increasing deformation temperature.

结果表明：流变应力随着应变速率提高和变形温度降低而增大；在变形过程中，流变应力随着变形量增大而增大，当流变应力达到峰值后趋于平稳，表明合金在变形过程中发生了动态再结晶；热变形过程的流变应力可采用双曲正弦本构关系来描述，平均激活能为337.75 kJ/mol；从合金的组织演化过程中可以看出，合金中不均匀的原始组织得到明显均匀化，变形后的组织是由α2/γ层片晶团和γ晶粒组成的双态组织，在α2/γ层片晶团和γ晶粒的晶界交界处发现分布均匀的B2相，并且随着变形温度升高B2相数量逐渐减少。

Using a model regarding the impeller as homogeneous rotating circular with same thickness and various density,the residual strain field and plastic deformation zone size of certain supercharger impeller were calculated at 30 000 r／min over-speeding preload by means of axial symmetry plane stress elasto-plastic analysis method,and were compared with the result of resistance strain measurement method.

将柴油机涡轮增压器叶轮简化为一个均质、等厚、变密度的旋转圆盘，按轴对称平面应力弹塑性分析方法计算了国产某型增压器叶轮在30 000 r／min超速预加载后的残余应变场和轮内塑性区尺寸；又用电阻应变测量法测得超速叶轮的实际应变。

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。

Be an apparatus's turn to be OK to fight against shearing force , curved strain , axle centre strain and torque force produced by thigh-bone neck fracture only with one nail, the biomechanics the Shanghai University biomechanics project research institute has been carried out for this purpose tests , the various index inner without exception better than now having at present fixes an apparatus.

该器械仅用一根钉即可抵抗股骨颈骨折所产生的剪力、弯应力、轴心应力和扭力，上海大学生物力学工程研究所为此进行了生物力学测试，各项指标均优于目前现有的内固定器械。

The dissertation aims at the study on tensile strain behaviors of five different manganese content TWIP steels under various strain rates.

中文摘要本文研究了五种不同锰含量的孪晶诱发塑性钢在不同应变速率下的拉伸应变行为。

For Si0.8Ge0.2 film in a window of 3μm×3μm,its strain is relaxed by only less than 4% after the sample is annealed at 950℃ for 30min,which is much less than the strain relaxation of the Si0.8Ge0.2 film grown on the unpatterned area on the same substrate under the same annealing condition.

在3μm×3μm窗口中共度生长的Si0.8Ge0.2/Si异质结构材料，在950℃高温退火30min后，它的应变弛豫不大于4%。远小于同一衬底上非微区生长材料的应变弛豫。

The oxygen uptake activity using Triton X- 100 as substrate in a resting cell experiment demonstrated that one of the isolates, P nitroreducens TX1, showed the highest activity to transform Triton X-lOO, 528 nmole/min/g cell wet weight among the isolates. The generation time of strain TX1 was only 1.2 h by using 0.5% of Triton X-100 as sole carbon source in MSB medium. Furthermore, this strain could even grow on the Triton X-l00 at a concentration of IO%-2O%.

本研究藉由测定各菌株分解TritonX-100时的氧气消耗活性发现，编号82.10.6之菌株，经鉴定并命名为P.nitroreducens TX1，每克湿重的菌株具有528 nmole /min的高耗氧活性，尤其，该菌株以0.5%的TritonX-100培养时，世代时间仅为1.2小时，即使在10%-20%的Triton-X-100的培养环境中亦能维持生长，在过去相关研究中均尚未发表有此一特殊之生长特性。

It is indicated that loosely compacted soil is of strain-softening behaviour under undrained conditions, accompanied with a rapid increase in excess pore water pressure. In anisotropically consolidated constant shear stress tests, a very small axial strain was required to induce the failure and the excess pore water pressure increased quickly at failure.

研究表明：松散填土在不排水条件下具有应变软化的特性，软化过程中伴随着孔隙水压力的迅速上升，有较高的液化势；在常剪应力排水剪条件下，具有破坏前轴向应变小、破坏时间短，破坏过程中孔隙水压力迅速上升。

And Aphelenchoides besseyi with distinct effects; the fermentation liquid of the bacterial strain has higher poisonous activity to second instar larva of Heterodera glycines, and can remarkably restrain cyst hatching; the treatment of fermentation liquid with different diluted concentration is significantly different from the treatment of sterile water; the insecticidal effects of stock fermentation solution can reach above 90%, and the effects of greenhouse experiment are obvious; at the same time, the bacterial strain can remarkably poison the Meloidogyne spp.

该菌株的发酵液对大豆胞囊线虫二龄幼虫具有较高的毒杀活性并显著抑制胞囊孵化，不同稀释浓度发酵液的处理和无菌水处理有显著差异，发酵原液的杀线虫效果可达到90％以上，温室防效试验效果明显。同时该菌株对根结线虫Meloidogyne spp。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。