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This dissertation first puts forward the model of driving force transformation which the contact region of stator and rotor is divided into three relative sliding areas such as braking—driving—braking by means of research on vibration characteristics of USM stator surface points and micro driving course to rotor, this model can explain variation regularity of USM load characteristics, moreover, simplified calculation formula of rotor driving force concerned with stator teeth is set up.

本文通过对行波超声马达定子表面各点的振动特性和定子对转子微观驱动过程的研究，首次提出将定子和转子接触区划分为制动区—驱动区—制动区三个相对滑动区的驱动力转换模型，这一模型能够解释超声马达负载特性变化规律，并建立了计及定子齿的转子驱动力计算简化公式，该式能应用于多于两个定子齿驱动的转子驱动力计算。

The nonlinear Winkler-Kelvin sub-grade model is adopted in this simplified model and the complicated 3-D problems of the soil-single piles dynamic interaction are simplified to the 1-D, that is to say, the lateral nonlinear acting force of the soil to the pile shift is simulated with thehorizontal nonlinear springs which have the continuous uniform distribution, while the nonlinear spring restoring force is described by the deteriorated Bouc-Wen model; the radiation damping and material damping due to the energy dissipation and inner friction in the soil are displayed with the dashpots which are in parallel with the horizontal nonlinear springs.

该模型采用非线性Winkler-Kelvin地基模型，将复杂的地基土-单桩动力相互作用的三维问题，简化为一维问题，即，地基土对桩轴的横向非线性作用力，由随深度均匀分布的水平非线性弹簧模拟，非线性弹簧恢复力由退化的Bouc-Wen模型描述；地基土中由于能量耗散和内部摩擦而产生的幅射阻尼和材料阻尼，由与水平非线性弹簧并联的粘壶表示。

The air flow excitation force of leaf peak clearance evocable by impeller eccentricity is the important part of the air flow excitation force, so the research of it is very important too.

而由叶轮偏心引起的叶顶间隙气流激振是气流激振的一个重要方面，因此，加强透平机械中由叶轮偏心引起的叶顶间隙气流激振的研究也显得非常重要。

This text studied the mutually interference influences to the aerodynamic force of irregular shape base on analysis using wind force and wind pressure data of super high buildings model obtained by wind tunnel tests, and provided reference to designer and expurgator on building code.

本文以超高层建筑刚性模型的高频天平测力风洞试验数据和表面测压风洞试验数据为依据，研究了复杂外形建筑的风力和高层建筑相互干扰对风力影响，供设计者及规范修订时参考。

At the same time, the curve of inertia force and inverse restriction force of some typical motions are drawn by ADAMS, which makes the analysis of dynamics further perfect.

同时，利用 ADAMS 软件绘制机床在几种典型运动中的惯性力和约束反力曲线图，以进一步完善机床的动力学分析。

The present paper design content is the expandable belt feeding engine, is transmits the force of traction through between the transmission drum and adhesive tape's friction force, concurrently makes the hauling organization and the load bearing organization one kind by the adhesive tape for the material equipment, expands and contracts the arm rear part establishment to have the expandable hydraulic prop, causes the complete machine length nimble elongation or the reduction, between the supporting roller the included angle increases to causes the belt fastener inclination angle to be possible to amount to 25 degrees, has for estimates in a big way, the transportation is steady, the service is convenient, the area slightly and so on characteristics, brings conveniently to the load, can the widespread application in each kind of bulk collection and distribution center production scene.

本论文设计内容是可伸缩带式给料机，是通过传动滚筒与胶带之间的摩擦力来传递牵引力，以胶带兼作牵引机构和承载机构的一种给料设备，伸缩臂尾部设置有可伸缩的液压支柱，使整机长度灵活的伸长或缩短，托辊之间夹角增大可使皮带机倾角可达到25度，具有给料量大，运输平稳，维修方便，可多点卸料，占地面积小等特点，给装车带来方便，能广泛的应用于各种散料集散地的生产现场。

The present paper design content is the expandable belt feedingengine, is transmits the force of traction through between thetransmission drum and adhesive tape's friction force, concurrentlymakes the hauling organization and the load bearing organizationone kind by the adhesive tape for the material equipment, expandsand contracts the arm rear part establishment to have theexpandable hydraulic prop, causes the complete machine lengthnimble elongation or the reduction, between the supporting rollerthe included angle increases to causes the belt fastenerinclination angle to be possible to amount to 25 degrees, has forestimates in a big way, the transportation is steady, the serviceis convenient, the area slightly and so on characteristics, bringsconveniently to the load, can the widespread application in eachkind of bulk collection and distribution center productionscene.

本论文设计内容是可伸缩带式给料机，是通过传动滚筒与胶带之间的摩擦力来传递牵引力，以胶带兼作牵引机构和承载机构的一种给料设备，伸缩臂尾部设置有可伸缩的液压支柱，使整机长度灵活的伸长或缩短，托辊之间夹角增大可使皮带机倾角可达到25度，具有给料量大，运输平稳，维修方便，可多点卸料，占地面积小等特点，给装车带来方便，能广泛的应用于各种散料集散地的生产现场。

By the computation of program, data which concerned in engineering such as deflection of raft foundation, internal force of raft foundation, internal force of superstructure (Which include beam, columns and shear-wall) and the other useful data for structure design can be obtained. And this can provide guidance and advice for the relative engineering practice.

通过程序计算可以得出工程上关心的考虑与上部结构、地基共同作用的筏板基础的挠度、筏板基础内力、上部结构(包括上部各层梁、柱、剪力墙)内力等结构设计所需的指标，可为相关的具体工程实践提供指导及依据。

A deformable model is used to reconstruct the shape of the LV: first, the dynamic equation governing the surface deformation is deduced; secondly the image planes are mapped to the reconstruction coordinate system. From the slices data, the external force exerted on the surface is defined and the elastic force of the surface is constructed by mean curvature of the deformation surface. Finally, a level set method is applied to solve the dynamic equation for LV shape.

为了重建左心室的形状，使用基於形变模型的方法：首先建立变形曲面的动力学方程；再将成像坐标系中的图像平面映射到重建坐标系，根据图像数据构造外力，使用平均曲率构造变形曲面的弹性力，然后用水平集数值解法求解动力学方程以重建左心室的表面。

And when, after the Cold War, the sovereignty disputes over the islands in the South China Sea have become one of the dominating problems that threaten the peace and security of the Asia-Pacific area and the relations between the countries around the South China Sea have been in such tensions many times due to the issue that there is evidence that force may be resorted to, US has been dead set on one point though its strategy for the Asia-Pacific area is still shaping: it urges that the issue should be settled through negotiation rather than by force.

就南中国海岛礁的实际控制问题和争议的解决方式而言，美国在不同时期有不同的态度。20世纪50、60年代，美国坚决反对中国收复西沙和南沙群岛，尤其是对1956年所谓的"中共甘泉岛登陆"事件反应强烈，但容忍、默许台湾当局、南越、菲律宾这些反共盟友在这些岛礁的活动。70、80年代，美国对发生在南中国海的两次武装冲突持中立态度：默许中国武力收复西沙群岛和部分南沙岛礁；冷战后，即90年代，美国则坚决反对武力解决南沙群岛问题，极力倡导和平解决。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。