力平衡

The results showed that middle aged women used greater force on contact and leaving phase;the muscle activity and balance control capability of middle aged women on the first metatarsus and heel area were better than those of elder women's.Middle aged women can generate more ankle movement while the other parts of the b...

结果显示：中年女性在行走时无论是在脚刚接触地面还是在离地时所用的力均大于老年女性；中年女性第一跖骨和足跟部位的肌肉活动和平衡能力控制优于老年女性；中年女性可以在身体其他部位运动的同时使踝关节产生更多的运动，并产生更大的水平力来确保压力中心处于支撑面范围内。

First, in this essay, the author states the reasonableness and necessity of permitting transfer of mortgaged property, affirms that mortgager will not lose the right of dispose and is entitle to transfer the property freely when the property is under mortgage. And at the same time, the author agrees the theoretical basis of droit de suite and the mortgagee's interests can be protected through the enforcement of the recovery right. Second, the author introduces the legislation of droit de suite in several countries with typical civil law legal system and analyses the particular characteristics of these different registrations. Third, the author points out the defects and malpractice of the legislations in our country after analyzing the legislation which state ambiguously the recovery right of mortgage and restricts the transfer of mortgaged property based on the tracing the development of system in respect of transfer of mortgaged property in Chinese legislation on guarantee. Finally, according to the real situation of our country, the author presents some concrete proposals on perfecting the system of transfer of mortgaged property and droit de suite of mortgage to reach the balance between static safety of property rights and dynamical safety of transactions with the reference to successful expericnees of other countries.

本文首先从理论依据出发，论述允许抵押物转让的合理性与必要性，肯定抵押人在抵押期间不丧失对抵押物的处分权，可以自由转让抵押物，同时认为抵押权追及力的存在具有理论基础，通过赋予抵押权以追及效力即可保障抵押物转让关系中抵押权人的利益；其次，简要介绍几个具有典型意义的大陆法系国家关于抵押权追及力的立法状况，分析各国立法的侧重点；再次，结合我国担保立法关于抵押物转让制度的发展轨迹，对我国立法未明确承认抵押权所固有的追及效力，且限制抵押物转让的规定进行剖析，认为存在一定的疏漏和弊端，具有明显的不合理性；最后，根据我国国情，并借鉴国外立法的成功经验，提出完善我国抵押物转让及抵押权追及制度的具体立法建议，以寻求物权的静态安全与交易活动的动态安全的平衡。

The restoring Casimir force, which is the force that changes from repulsion to attraction with the increasing slab separation, may be found to exist between perfectly conducting material and metamaterial slabs. This restoring force is a natural power for the system oscillation in vacuum and also can be used for system stabilization

而若将其中一个材料板取为理想导体板，Casimir效应则可表现为随板间距的增大从排斥力转变为吸引力即平衡回复力，这种力可用来产生板间振荡或稳定真空中的力学系统。

The scale analysis on planetary scale motion in the tropical atmosphere shows that the equilibrium between the pressure gradient force and Coriolis force in the meridional direction is easily established, which is known as the zonally semi-geostrophic motion.

对热带大气行星尺度运动所做的尺度分析和物理分析表明：热带大气的行星尺度运动在y方向容易实现气压梯度力与Coriolis力的平衡，它称为纬圈的半地转运动。

According to the plane cross section assumption, configuration of a rod is expressed as a history of the cross section with arc coordinate. A special solution which stands for equilibrium in straight line state is obtained from differential equilibrium equation. Linear perturbation equation is derived and its general solution is obtained in which the integral constants are determined by constrained conditions at two ends of the rod. The condition of existence of non zero solution of the integral constants gives to the Greenhill formula of exact elastic rod model, which shows that the boundary of stable area is a closed curve and of symmetry, and inference of shearable and extensible to stability of the rod is depend on three factors: difference between flexibility of shear and extension of a section of the rod, bending stiffness and the length of the rod.

基于平面截面假定，弹性杆的位形表达为截面的弧坐标历程，根据平衡微分方程得到了两端受力螺旋作用时的直线平衡特解，导出了线性化扰动方程及其通解，积分常数根据两端铰支时的边界条件确定，并根据其存在非零解的条件得到弹性直杆精确模型的Greenhill公式，表明稳定域为一对称的封闭区域，拉/压和剪切对稳定性的影响取决于：拉/压柔度与剪切柔度之差，抗弯刚度和杆长这三个因素

Directed towards its equilibrium position is called a restoring force.

运动过程中，总指向物体平衡位置的力称为恢复力。

First of all, the multi-degree-of-freedom equation of motion of the rotor-bearing system, under the action of non-linear oil forces, are derived by Ritz＇ s method according to d＇ Alembert＇ s principle.

轴承系统的不平衡量，给出了一种适合参数识别的非线性油膜力表达式，并引入遗传算法来识别非线性油膜力的动力系数和不平衡的大小和位置。

Based on the similarity principle and nonlinear finite element method, reposition balance method was put forward to find the prestress.

基于相似原理结合非线性有限元法提出了膜结构找力分析的复位平衡法，根据形面的拓扑关系对复位平衡法进行了优化。

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各种管道遍布于现代工业工程中，支吊架起着支承重量、平衡反力、保证位移、吸收振动以及降低噪音等作用。各先进设计院所对此无不精心设计，认真选用，要求实行标准化和工厂化生产。本公司已为数百个大中型工程，具体吊点数万个提供产品，包括合金钢，碳钢管部，根部；恒力弹簧/碟簧支吊架，可变弹簧支吊架，整定式及简式弹簧组件，松紧螺母，球锥垫圈，低摩擦系数滑动支座等连接件，滚珠盘等滚动件，螺纹吊杆等全部型式的支吊架产品，均保持安全运行。

Based on the Frenet-Serret formulas which are very important in the vector and tensor analysis theory, the force and moment equilibrium equations are established by the technique of apparent components system.

以在空间曲线理论中起重要作用的富列耐—塞勒(Frenet—Serret)公式为基础，把BHA所受的力及力矩表示为三维非正交坐标系中视分量的形式，建立了力和力矩平衡方程。

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。