力学的

The influencing factors of longitudinal mechanical properties of tracheids: 11 Experiments and theoretical calculation has proved that MFA of S〓 layer is the determinant factor of longitudinal mechanical properties of trachedis with smaller angle corresponding to better mechanical properties.

管胞细胞壁纵向力学性能的影响因素： 11实验和理论计算均表明，S〓层微纤丝角是管胞纵向力学性能的决定性因素，微纤丝角越小，管胞的纵向弹性模量和强度越大。

On the contrary, a kind of coarser structures and some metallurgical drawbacks, such as micro-holes and shrinkages, will appear in the mould-cast alloy thus mechanical properties of the latter is poorer than that of the former.2 When in different part or the casting thickness not equal, the die-casting magnesium alloy AZ91D has different mechanical property.

压铸镁合金AZ91D的组织由均匀细小的近球状组织和细小的放射状枝晶组成，相比较而言，砂型铸件组织粗大，易产生气孔、收缩等缺陷，故而其力学性能比压铸件要差。 2。压铸镁合金AZ91D铸件依部位和厚度不同，力学性能也不同。

The change of cytoskeletal architecture of osteoblasts with Phalloidin strain actin filaments was visualized by confocal microscopy The results showed: 1 the secretion of estrogen were depressed and bone mass were decressed and biomechanic properties of bone were impaired in osteoporotic rats at 3 months after ovariectomy .

在1 000μstrain力学刺激下，成骨细胞integrinα2，β1，β3的表达量出现上调；在4 000μstrain力学刺激下，成骨细胞integrinα2，β1，β3的表达量明显上调，成骨细胞合成骨基质的能力与增殖活性增加。

The orientation structure,mechanical relaxation and properties of the tussah silk fibers treated with additive solns.

通过对不同用量助剂溶液处理的野蚕丝纤维取向态结构、力学松弛特征和性能等方面的研究，探讨不同用量助剂溶液对野蚕丝纤维分子运动、结构和力学特性的影响及其内在联系，为改善野蚕丝纤维服用性能提供理论依据

The 3D elastic mechanics and finite-element structure analysis priniple were provided.The mechanics characteristics of the three-faced aluminous rotating mirror were analyzed,and the finite-element model was established.

给出了3维弹性力学空间问题基本方程和有限元结构强度分析原理，分析了三面体铝合金转镜空间结构强度的力学特征，建立了有限元模型，分析了其在轴孔与轴的3种配合关系下的应力分布。

Based on elastic-plastic constitutive model of the rocks, the author, adopting the sliding block - spring combination system, studies the mechanics model of the shear band and obtains the starting conditions of deformation localization controlled by such a mechanics model.

基于岩石的弹塑性本构关系，采用滑块—弹簧组合系统研究了岩石剪切带形成的力学模型，并得出了该力学模型控制的变形局部化起动条件。

Its main mechanism of action is that XLGB could enhance the biomechanics response accommodate function of macrostructure os integumentale, increase femoral diameter, aggrandize area of the bone cortex, augment torsional section modulus and rectangular section modulus, and enhance the density of bone mineral substance in ovariectomized rats.

仙灵骨葆能够提高股骨宏观结构的生物力学应答调节功能，使股骨干外径增粗，皮质骨面积增加，骨丢失减少使股骨结构的抗弯、抗扭截面模数增大，使骨的力学结构优化，骨强度提高。

Hypoxia and PDGF have a synergistic effect that increases the expression of the angiogenetic peptide vascular endothelial growth factor in Achilles tendon fibroblasts. Arch Orthop Trauma Surg.

但本研究没有涉及这方面的研究，而且从生物力学结果也不能看到重建交叉韧带的力学性能好于未插入PDGF基因的骨髓干细胞组，因此尚待今后进一步的研究。

In the course of constructing the interval tunnel of metro with shield tunneling method, single lining assembling plan is popular currently,and it mainly consists of straight joint and staggered joint method.

拼装方式的改变将会对衬砌结构的力学行为产生重要影响，本文采用模型试验、数值模拟和现场试验等方法对在不同拼装方式下管片衬砌结构的力学行为进行了研究。

Mechanical models and differential equations of motion for high speed pantographs;2. By the principle, differential equations of motion for variable-mass nonholonomic systems constrained to the fixed axis rotation are obtained.

建立了变质量力学系统在定轴转动参考系中的Jourdain原理，由此得到了受定轴转动约束的变质量力学系统运动微分方程，给出了准坐标形式，最后举例说明方程的应用。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。