域

By this study, we figure out the patterns on the butterfly wings can be classified into two types, global patterns belong to the background, and local eyespot patterns according to the wing cell midline, furthermore, our study simulates these patterns by computer simulation.

本研究能模拟出蛱蝶科中具有同心圆眼斑以及沿著翅膀边缘上分布之波浪花纹，另外也能模拟分布於翅膀全域较小较无规则的波浪斑纹；藉由本研究我们发现蝶翅斑纹可以分为属於背景的全域斑纹与以翅室中线为准属於区域性的眼斑花纹，而本研究皆能分别以电脑模拟出来。

In view of trust region algorithm has good global convergence for solving non-linear quadratic programming problem,the effective elastic module s damage factor and the damage distribution function is introduced by FEM updating .

鉴于信赖域算法在求解非线性二次规划问题中具有良好的全局收敛特性，同时结合有限元模型修正技术，引入有效弹性模量损伤因子和损伤分布函数的概念，在Matlab编程环境下调用ANSYS有限元程序中的APDL语言进行桥梁空间结构的有限元建模，利用信赖域算法调整局部单元的参数，通过连续损伤分布插值多项式拟合连续区段各单元的损伤分布曲线，进而实现了对连续梁桥的动力损伤识别。

Aiming at the fade-out problem of the peak value existing in the traditional numerical filter after a sampling average, a filtering scheme based on the LabVIEW for the Infrared Spectrum measurement of the cellular water is proposed. A correlation algorithm responding to the filtering scheme is designed, and the filtering signal is analyzed in the time and frequency domain.

针对传统数字滤波在红外光谱细胞水分检测中采样点平均后各峰值削减的严重问题，提出了一种基于LabVIEW的滤波方案，设计了相应的相关算法，并对滤波信号进行时域和频域分析。

This dissertation investigates the construction of pseudo-random sequences (pseudo-random numbers) from elliptic curves and mainly analyzes their cryptographic properties by using exponential sums over rational points along elliptic curves. The main results are as follows:(1) The uniform distribution of the elliptic curve linear congruential generator is discussed and the lower bound of its nonlinear complexity is given.(2) Two large families of binary sequences are constructed from elliptic curves. The well distribution measure and the correlation measure of order k of the resulting sequences are studied. The results indicate that they are "good" binary sequences which give a positive answer to a conjecture proposed by Goubin et al.(3) A kind of binary sequences from an elliptic curve and its twisted curves over a prime field F_p. The length of the sequences is 4p. The "1" and "0" occur almost the same times. The linear complexity is at least one-fourth the period.(4) The exponential sums over rational points along elliptic curves over ring Z_ are estimated and are used to estimate the well distribution measure and the correlation measure of order k of a family of binary sequences from elliptic curves over ring Z_.(5) The correlation of the elliptic curve power number generator is given. It is proved that the sequences produced by the elliptic curve quadratic generator are asymptotically uniformly distributed.(6) The uniform distribution of the elliptic curve subset sum generator is considered.(7) We apply the linear feedback shift register over elliptic curves to produce sequences with long periods. The distribution and the linear complexity of the resulting sequences are also considered.

本文研究利用椭圆曲线构造的伪随机序列，主要利用有限域上椭圆曲线有理点群的指数和估计讨论椭圆曲线序列的密码性质——分布、相关性、线性复杂度等，得到如下主要结果：(1)系统讨论椭圆曲线-线性同余序列的一致分布性质，即该类序列是渐近一致分布的，并给出了它的非线性复杂度下界；(2)讨论两类由椭圆曲线构造的二元序列的"良性"分布与高阶相关性(correlation of order κ)，这两类序列具有"优"的密码性质，也正面回答了Goubin等提出的公开问题；(3)利用椭圆曲线及其挠曲线构造一类二元序列，其周期为4p(其中椭圆曲线定义在有限域F_p上)，0-1分布基本平衡，线性复杂度至少为周期的四分之一；(4)讨论了剩余类环Z_上的椭圆曲线的有理点的分布估计，并用于分析一类由剩余类环Z_上椭圆曲线构造的二元序列的伪随机性；(5)讨论椭圆曲线-幂生成器序列的相关性及椭圆曲线-二次生成器序列的一致分布；(6)讨论椭圆曲线-子集和序列的一致分布；(7)讨论椭圆曲线上的线性反馈移位寄存器序列的分布，线性复杂度等性质。

The method of the fast Fourier transformation is used to transform the signals in timedomain into frequency domain.

应用信号处理技术，通过快速傅里叶变换将时域信号转换至频域，再根据最小二乘原理辨识出励磁系统的常用标准模型。

Based on constraint satisfaction,an entirely feasible scheduling is obtained by constraint propogation technology and heuristic repair method and is regarded as initial solution for tabu search algorithm.Current solution is optimized by neighborhood transformation on a critical path.The final optimizal solution is improved by adopting a global neighborhood swapping strategy.

该算法基于约束满足思想，通过约束传播技术和启发式修复算法，得到可行调度作为禁忌搜索算法的初始解；再进行关键路径上的邻域变换，优化当前解；并采用一种全局邻域交换策略，扩大搜索空间，改善优化结果。

A model for computing the electric field dependent rate constants of gas-phase intramolecular electron transfer reactions by classical path method has been proposed within the activated-complex framework.

用经典轨迹方法，在过渡态理论框架下，提出外电场中气相分子内电子转移反应的速率常数计算模型，并用电子定域初始猜测诱导UHF-SCF技巧实现了两电子定域准透热态的分离。

And we know by study, so long as system is controllable and observable at the structure over the field F(z of the rational functions in multi-parameters, it is always controllable and observable over the field R of real numbers.

通过研究我们知道，一个系统只要在结构上多元有理函数域(F上是能控能观的，则意味着实数域上该系统实际上总是能控能观的。

Now the controllability theory in linear systems over the field R of real numbers has been heavily studied. This theory is efficacious for analyzing the characters which are determined by the value of physical parameters and system structure, nevertheless a practical system has a definite structure and has approximate, even unknown parameter sometimes because of a limit to experiment conditions, or a limit to making technology, the errors of observation. It is inconvenience for a linear system over the field R of real numbers to analyze the structure characters of a physical system, such as structural controllability.

目前，实数域上的系统的完全能控性理论研究已经很成熟了，它用于分析系统结构和物理参量的值共同决定的那些性能是有效的，然而，在工程中，由于实验条件或者制造工艺上的限制和观测上的误差，以及人为地对数据的近似处理，一个实际系统往往其结构是确定的，而参数只是近似的甚至未知的，实数域上的系统不便于分析物理系统的结构性质，如结构能控性。

DBF databases, fields, Dbase III and IV memo fields, dates, record and file locking and .

DBF数据库，域，DbaseIII 和IV 备忘录域，日期，记录和文件锁以及NDX 目录。

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。