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In addition, theamount of horizontal translation, the aging parameter, can be used toestimate the aging process.


Master curves for various aging conditions were found tocollapse into a single smooth curve corresponding to a reference agingcondition after suitable horizontal translation.


And gradually, with the amount of the horizontal translation, there was no space left for any screw.


For the numerical simulation a rigid and very rough retaining wall undergoing a horizontal translation against the backfill is considered.


In diseases with normal receptors but low retinal sensitivity due to abnormal post receptoral processing, the increment threshold functions are shifted up with no horizontal translation.

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 For a strip wall erected on a rigid strip foundation and supported on the surface of the ground, the dynamic soilstructure interaction under the action of the horizontal ground motion is investigated. The ground motion is idealized as vertically propagating, horizontal steadystate motion. Because the horizontal ground motion brings about the sliding vibration of the foundation as well as the rocking vibration, the coupled rocking and sliding vibration of the soilstructure system is considered in the present... For a strip wall erected on a rigid strip foundation and supported on the surface of the ground, the dynamic soilstructure interaction under the action of the horizontal ground motion is investigated. The ground motion is idealized as vertically propagating, horizontal steadystate motion. Because the horizontal ground motion brings about the sliding vibration of the foundation as well as the rocking vibration, the coupled rocking and sliding vibration of the soilstructure system is considered in the present paper. For the contact between the ground and foundation, the following assumptions are made:1)the contact is assumed to be welded, that is to say, the motion of the foundation is consistent with the ground; 2) the horizontal translation at each point on the bottom surface of the foundation is equal to a constant; 3) the distribution of the normal displacements under the foundation remains to be linear in the rocking vibration. For comparison, the case of uncoupled vibration is considered also. The use of Fourier transform method yields dual integral equations (for the case without coupled effect) or simultaneous dual integral equations (for the case with coupled effect)). Both of them are solved by means of infinite series of orthogonal functions, the Jacobi polynomials. The numerical results show that there is significant difference between the displacements of the foundation, the relative disp acements of the top of the wall with respect to its base, and the distribution of contact stresses beneath the foundation, for the cases with and without coupled effect.  本文研究了在水平地面运动情况下,墙——刚性条形基础——地基系统的动力相互作用问题.文中考虑了土——结构物系统摆动和移动的耦联振动.对于地基与基础间的接触,作了如下一些假定:1)接触是焊固的,即基础的运动与地面运动相一致;2)基础底面上各点的水平位移是一常数;3)在摆动中,基础垂直位移的分布保持为一直线.为了比较起见,同样研究了非耦联情形.利用富里叶变换,问题归结为对偶积分方程(对于无耦联情形)和对偶积分方程组(对于耦联情形).借助于雅可比多项式的无限级数对此二种方程进行求解.数值结果表明,对于存在和不存在耦联影响,基础位移、墙顶对其底部的相对位移、基础底面的接触应力分布等等之间,存在着相当大的差异.  The small angle xray scattering (SAXS) station is located at 34m from the source in the downstream of the xray diffraction station. The station is equipped with a SAXS camera, a detector, an alignment carriage and online data acquisition and control system. The SAXS camera consists of a slitsystem with position precision 1μm, a remotely controlled sample holder with vertical and horizontal translations at the plane normal to photon beam and a vacuum pipe with 0.13Pa. The research for this station is... The small angle xray scattering (SAXS) station is located at 34m from the source in the downstream of the xray diffraction station. The station is equipped with a SAXS camera, a detector, an alignment carriage and online data acquisition and control system. The SAXS camera consists of a slitsystem with position precision 1μm, a remotely controlled sample holder with vertical and horizontal translations at the plane normal to photon beam and a vacuum pipe with 0.13Pa. The research for this station is directed on the static and dynamic structure, phase composition and phase transmission in various fields such as molecular biology, materialscience, polymer chemistry and metallurgy.  小角Ｘ射线散射（ＳＡＸＳ）实验站配置有ＳＡＸＳ相机、在线控制及数据获取系统．ＳＡＸＳ相机由位置精度为１μｍ的狭缝系统、用以监测光强的电离室、在垂直于束流的平面内能作水平和垂直两个方向遥控调节的样品台和可调长度低真空管道等部分组成，真空管道的两端有２５μｍ厚的Ｋａｐｔｏｎ膜密封，探测器为闪烁计数器．该装置的角分辨优于０．６ｍｒａｄ．  Objective:Study the three dimensional stability of the spine injuries,i.e.burst fracture,treated by interbody strut bone graft with anterior longitudinal ligament intact.Methods:Nine fresh cadaver thoracolumbar specimens were measured by 3 degree of freedom electrogniometer force and displacement transducers the relative rotation and horizontal translation between T 11 and L 1 vertebra in the bending direction.The mean flexibility was computerized. Results:Except rotation,the operative technique... Objective:Study the three dimensional stability of the spine injuries,i.e.burst fracture,treated by interbody strut bone graft with anterior longitudinal ligament intact.Methods:Nine fresh cadaver thoracolumbar specimens were measured by 3 degree of freedom electrogniometer force and displacement transducers the relative rotation and horizontal translation between T 11 and L 1 vertebra in the bending direction.The mean flexibility was computerized. Results:Except rotation,the operative technique could provide good stability in compressive loading,flexion,extension,lateral bending. Conclusions:The interbody strut bone graft with anterior longitudinal ligament intact could increase the mechanical stability of the injured spine and be beneficial to injured spinal fusion.  目的：为评价保留前纵韧带的椎体间支撑植骨治疗脊柱爆裂骨折提供的生物力学稳定能力。方法：用传感器及电测技术，采用新鲜人体胸腰段脊柱标本。结果：除旋转外，轴压、前屈、后伸、侧弯四种运动方式皆能提供满意的稳定性。结论：实验提示，该方法能明显增加损伤脊柱的力学稳定性，有利于提高脊柱的融合率，是一种治疗脊柱骨折较为理想的植骨方法   << 更多相关文摘 
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