电力学的

From the view of fracture mechanics, the problem involving a center crack in a rectangular piezoelectric body under anti-plane mechanical shear displacement and in-plane electrical field is analyzed by the boundary collocation method in this paper.

从断裂力学的观点出发，采用边界配置法研究了含中心裂纹的矩形截面的压电材料在平面内电场和反平面变形作用下的应力场和电场的解，详细介绍了该方法的程序设计过程。

With the rapid development of micro electro mechanical system,mechanical properties of MEMS are being focused.

随着微机电系统的蓬勃发展，如何准确获得MEMS材料的力学性能参数成为当今研究的热点。

The experiment used methods of sport biomechanics to investigate the electromyographic magnitude of eccentric and concentric phases under two different stretch amplitudes of drop jumps in order to understand neuromusculor characteristics of different stretch amplitudes of SSC movement.

本研究是利用运动生物力学的方法，探讨肌肉牵张缩短循环（stretch-shortening-cycle SSC）的典型动作drop jump 20、40和60cm之肌肉工作特徵，以便了解浅蹲和深蹲法的DJ跳法之离心和向心收缩二阶段的肌电活动特徵。

It was well known that the importance and significance of Kv1.4 and KV4 channel on the repolarization of myocardium, but some kinesics characters of the channels, especially the inactive characters have not been clear.

前人用分子生物学及电生理学的研究手段已经证明了Kv1.4和KV4通道在心肌复极化过程中的重要性，但其通道动力学性质，尤其是失活动力学特性仍未明了。

On the basis of making it clear that laterization includes such three integrated stages as weathering, micro-granularity and soil formation of laterite, the thesis illuminates characteristics of Kunming laterite in chemical composition, physical mechanics, composition of granules, fractal dimension of granularity and the connection of granules. The experiment using soil reinforced agent to solidify the laterite shows that the mechanical traits of laterite have been improved because of its involvement, the best compact indicators and shear strength ones increased and the indicators of laterites penetrability and compression decreased. The effects of reinforcement can be weighed through its coefficient and the mechanism of reinforcement can find the explanation in the effect of soil reinforced agent on the laterite granules, the changes in the electric double layer caused by soil reinforced agent and its enwrapping of laterite granules.

在明确红土化作用包括风化作用、微团粒化作用以及红土成土作用三个完整阶段的基础上，阐明了昆明红土的化学组成特征、物理力学特征、颗粒组成特征、颗粒粒度分维特征以及颗粒连接特征；土壤强固剂加固红土试验表明，土壤强固剂的加入，改善了红土的力学特性，提高了红土的最佳击实指标和抗剪强度指标，减小了红土的渗透性指标和压缩性指标，其加固效果用加固效果系数来衡量，其加固机理可用土壤强固剂与红土颗粒之间的物理化学作用、土壤强固剂引起红土双电层的变化以及土壤强固剂对红土颗粒的包裹作用来解释。

The consititutiverelations of ferroelectric composites are studied by means of micromechanics.

介绍了基于细观力学方法对铁电复合材料的本构关系进行研究的一些结果。

Methods Seven cadaveric thoracolumbar spinal specimens were harvested to imitate thoracolumbar fracture according to Panjabi method. Biomechanical tests of stability were performed by measuring spinal strength, stiffness, torsional rigidity and load-to-failure after 5 different instruments were placed respectively.

用7具人尸胸腰段标本，按Panjabi方法制作骨折模型，分别安放5种固定器，利用生物力学的电测实验应力分析方法测试固定后脊柱的强度、刚度、扭转强刚度和极限强度。

Therefore, it is important to investigate the electro-elastic interaction and fracture behavior of piezoelectric materials.

因此，对压电断裂力学的研究是十分重要的。

Our professional team members have more than 15 years of LED and IC electric circuit experience, 15 to 20 years of PCB experience and more than 18 year of SMD production experience. This is a professional team with the knowledge of semiconductor technology, electronics, electrical engineering, thermology, optics and material science. We effectively integrate light, electricity, heat and corporations into our products and sales.

我们的技术团队成员有超过15年 LED 的经验，有超过15年的 IC 电路经验，有15~20年的 PCB 经验及超过18年的 SMD 生产经验，技术团队是集半导体学，电子学，电力学，热学，光学，材料学於一身的专业团体有效整合光、电、热及机构的设计队。

The Finite Element Method has been widely applied to engineering structures design and mechanics analysis as a tool, so it would be signality to apply FEM to piezoelectric composite materials analysis.

有限元法作为一种广泛应用于工程结构设计、力学分析的工具，将它应用于压电复合材料的性能分析中具有非常重要的意义。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。