结构方程

This paper has made the two-dimensional distribution model analysis for the LiTaO_3 pyroelectric detector which provides by t...

本文就上海技术物理所提供的悬空型LiTaO_3热释电器件结构，作了二维分布参数模型的分析，建立了热平衡方程，求解出调制辐射下的热释电流，并作了一些模型改进的讨论。

Quaternion field; matrix equation; structure-preserving algorithm; iterative method

四元数体；矩阵方程；保结构运算；迭代算法

Based on the theory of analogy of structural mechanics and optimal control, the optimal induced norm γ-2 of state feedback H∞ control is shown to be the fundamental Rayleigh quotient eigen value in structural vibration or Euler stability problems.

文摘：根据结构力学与最优控制的模拟理论，指出状态反馈H∞控制黎卡提方程中的最优参数γ－2，实质上就是结构振动或稳定理论中的瑞利商最小本征值。

Partial recuperative coefficient was set on according to the structure features of reactor.

根据电抗器的结构特点确定局部换热系数α，求解微分方程，得到其温度分布。

First, an appropriate regularizer R is chosen to weaken the ill-condition of the normal equation based on TIKHONOV regularization method, according to the characteristics of the normal equation formed by DD phase observations of the single frequency GPS receivers.

在分析病态法矩阵结构特性的基础上，基于TIKHONOV正则化原理，提出一种选择正则化矩阵R的新方法，减弱法方程的病态性。

With replicator equation we established the general model of industrial labor force structure.

本文还利用复制方程建立了产业劳动力结构的一般模型，对模型性质进行了分析。

The restoring force of the isolation system is studied, and the dynamic response program of the isolation system under earthquake excitation is drawn up in the time domain.

运用隔震理论建立结构隔震体系的动力模型和运动方程，着重考虑了隔震体系的恢复力特性，进行了隔震体系在时域内的地震反应程序设计。

Maxwell's equations describe the structure of the electromagnetic field.

麦克斯韦方程是描述电磁场结构的。

Results of analysis show that Generalized Paris Law can consider the complex crack propagation in the material of the pavement structure. The fatigue life of the pavement increases with increasing thickness of surface layer in a power function. Use of a thicker surface layer may extend the service life of the asphalt pavement. The fatigue life increases with decreasing modulus of surface layer in a power function with a negative exponent. However, since reduced modulus would scarify the structural strength and might cause rutting-related distress, caution should be taken when using low modulus materials for improving fatigue performance of asphalt pavements. The fatigue life increases with increasing modulus of base material in a power function. However, the fatigue life can not infinitely increases with increasing modulus of the base.

计算与分析表明：广义Paris公式可以考虑沥青路面结构内材料复杂的裂缝扩展：沥青面层的疲劳寿命随着面层厚度的增加以幂函数的形式增加，适当增加沥青面层厚度可以提高路面的使用寿命；沥青面层的疲劳寿命随着面层材料模量的降低以负指数的幂函数形式增加；由于材料模量的降低将牺牲路面的整体强度并可能引起路面车辙类损坏，以此提高疲劳寿命的方法应慎重对待；沥青面层的疲劳寿命随着基层材料模量的增加呈幂函数的形式增加，但由疲劳方程可以看出，寿命并不是随基层材料模量的增加而无限的增加，疲劳曲线在经过一个上升段后，逐渐趋于一个常数值，这说明，这时基层模量对寿命已不作关键性贡献；随着底基层厚度的增加，面层的疲劳寿命近似地呈线性函数增加，但效果并不很明显。

The inlet internal flow structure was well visu-alized by the schlieren photographs and pressure data.

采用纹影方法，结合压力测量对进气道内流结构进行诊断，同时用Yee的TVD有限差分格式通过求解二维N─S方程对相应实验状态下的进气道内流场进行了数值模拟。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。