刚性

Then, under the consideration of mixed boundary value condition, a pair of dual integral equations for the rocking vibrations of a disk on saturated grounds are obtained, which can be reduced to a Fredholm integral equation of the second kind and solved by numerical procedures. Consequently, the dynamic compliance coefficient is evaluated and numerical results are presented to portray the influence of poroelastic effects on the dynamic interaction problem.

对于刚性圆板，作者首先采用Hankel变换对波动方程进行求解，得到了该控制方程在Hankel变换域内的通解，然后由混合边值条件建立了饱和地基上刚性基础摇摆振动的对偶积分方程，并将其化为第二类Fredholm积分方程，用数值方法计算了不同频率下基础的动力柔度系数，从而考察孔隙水的存在对基础摇摆振动特性的影响。

The axially symmetric torsion of rigid circular shaft of varying diameter embedded in an elastic half space is studied by line-loaded integral equation method, where the problem is formulated by distributions of fictitions fundamental loads PRCHS (point ring couple in half space) along the axis of symmetry in interval of the shaft and is reduced to a one-dimensional and non-singular Fredholm integral equation of the first kind and is easily solved numerically.

弹性半空间；本文用线载荷积分方程法研究嵌在弹性半空间的刚性变直径圆轴的轴对称扭转。利用将"半空间的点环力偶"这一虚的基本载荷沿对称轴的圆轴区间中分布就能使本问题归结为一个一维的非奇异的Ferdholm第一种积分方程，且很易用数值求解。文中给出刚性圆锥，圆柱，圆锥柱嵌在弹性半空间的扭转的数值计算的例并和他人的已知结果相比较。

Firstly, Wavelet-Galerkin algorithm for solving the first kind of singular integral equation with the Hilbert kernel is proposed, we use the characteristic of periodic wavelet on L~2([0,1]) and Hilbert kernel to solve and make stiff matrix lower dimensions and become sparser through thresholding,thus the cost of computation is reduced. Because of the singularity of Hilbert kernel we use Tikhonov regularization method to solve the system of stiff equation. At last the convergence and numerical result of approximate solution are given. Secondly, an approach of regularization based on Fourier is presented for sideways heat equation; we give the theory proof and error estimate.

首先，提出了含Hilbert核的第一类奇异积分方程的小波伽辽金(Wavelet-Galerkin)数值算法，该算法中利用了L~2([0，1])上的周期小波和Hilbert核的特点进行处理，使得刚性矩阵维数降低并且通过阈值使得它更加稀疏，减少了计算量；由于Hilbert核的奇异性，通过Tikhonov正则化方法求解所得到的刚性方程组，给出了收敛性和数值结果；其次，对标准的一维逆热传导方程给出了一种基于Fourier正则化方法，给出了理论证明及其误差估计，解决了文献中算法与理论误差估计的不相匹配的现象，该正则化方法不仅保留了测量数据的部分高频成份，且与文献中的算法具有同样的计算量和误差估计。

This internal fault simulation is a typical stiff system and the stiff integration method with variable step-size and order are applied.

内部故障仿真求解是典型的非线性刚性微分方程问题，需采用变步长的适合求解刚性问题的算法。

The rigid fixation is statically preloaded and as the bone is loaded, there is not motion of fragments. The flexible Fixation systems can not be statically preloaded. As the-bone is loaded, both compression and distraction occur at the fracture site. Because micromotion at the fracture ends occurs within the limits that the callus will allow.

刚性固定在动载荷下断端没有活动而有静态预载荷；非刚性固定没有预静载荷，在动载荷下断端压缩和分离交替出现，由于动载荷下断端存在相对活动，所以骨折在外骨痂不断形成过程中达到愈合。

The pavement system is modeled as a plate extent on a viscoelastic foundation, and the triple Fourier transform is used to analyze the dynamic strain response of rigid pavement subjected to moving vehicle loads.

把刚性路面建模为黏弹性地基上的板，用三次富立叶变换的分析方法分析了移动车载下刚性路面板底动态应变的响应。

Multistory steel frames are more and more widely used in our country and bolted end-plate connection s are often adopted.

实际工程中运用的全部连接都处在完全刚性和理想铰接两种情况之间，端板连接更是典型的半刚性连接。

Second order nonelastic analysis method of multistorey and high-rise lightweight spatial steel frame is emphatically researched and calculating theory and design method ground on structural ultimate bearing capacity is established.

推导了半刚性连接轻型钢框架结构空间二阶非弹性分析新的切线刚度矩阵，建立半刚性连接轻型钢框架结构空间二阶非弹性分析和结构极限承载力设计新的计算方法。

Objective To present situation of medical image nonrigid registration,based on pointsets.

目的 针对医学图像非刚性点配准的现状，给出一种基于点特征的非刚性配准方法。

A wall can be either rigid or nonrigid.

一个壁可以是刚性的，也可以是非刚性的。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。