查询词典 composite function

The investigations in this thesis focus on several aspects as follows: We investigate the method that how to produce permutation matrix by using chaotic map, and get the method of image permutation based on chaotic map. This method can make original image to unorderly image to protect the true content of image. We investigate gray level mix function, and put forward a gray level mix function based on chaotic map. Because this function has chaotic characteristics, the image dealed with this function has very uniform histogram. Aiming at the contradiction between error robust and security on image encryption, we put forward a kind of gray level mix function including diffusion mechanism.

本文的研究工作主要集中在以下几方面：研究了如何利用混沌映射产生置乱矩阵的方法，给出了基于混沌的数字图像置乱方法，该方法能够将原始图像变成面目全非的杂乱图像，从而保护了数字图像的真实内容；研究了灰级混合函数，提出了基于混沌的灰级混合函数，由于该函数具有混沌特性，所以经过该函数处理后的图像具有非常均衡的灰级直方图；针对图像加密的错误鲁棒性与安全性之间的矛盾，提出了一种含有扩散机制的灰级混合函数。

Considering the actual surroundings and the characteristics of internal audit in our country,the supervising and examining function,certificating and appraising function,controlling function,risk early-warned function and counseling function should be as the mostly functions of internal audit.

就我国目前的环境和我国内部审计的特点来看，监督检查职能、鉴证评价职能、控制职能、风险预警职能和咨询服务职能应该是内部审计的主要职能。

The automatic meter readingsystem should have the functions: the data acquisition function, the set up parameters, the control to system, the advanced charge system and the protectionfunction; Below latter should realize the function: The data acquisition, the electric quantity initialization function, opening machine and closing machine function and power failure protection function.

计量方式选择多用户自动远传抄表系统和单项智能电表远传抄表系统，多用户自动远传抄表系统应具有如下功能：数据采集、参数设置、系统控制功能、系统预付费功能和保护功能；单项智能电表远传抄表系统应实现以下功能：数据采集、电量预置功能，开关机功能和掉电保护功能。

Radial basis function coupled with a polynomial basis function was used as a trail function, and a Heaviside function was used as a test function of the weighted residual method.

这种无网格方法采用径向基函数耦合多项式基函数来近似试函数，采用Heaviside函数作为加权残值法中的权函数。

On the basics of briefly summarizing the research and application presents of building coatings and nano-composite building coatings in domestic and overseas, we presented a creative approach of modified exterior and interior building latex coatings applying inorganic nano-powders and its compound, systematically studied the effect of factors such as nano-material's category、additive capacity、dispersing method on the behavior of exterior building coating's weathering resistance、scratch resistance、water resistance、alkaline resistance and on the behavior of interior building coating's restraining bacterium、degrading all kinds of bad organic matter,and triumphantly developed nano-composite building latex coating.

本文在简要叙述国内外建筑涂料和纳米复合建筑涂料的应用研究现状的基础上，提出了使用无机纳米粉体及其复合材料改性建筑外墙乳胶漆的创新思路，系统地研究了纳米粉体材料的种类、添加量、分散方式等因素对外墙乳胶漆耐候性、耐洗刷性、耐水耐碱性等性能的影响，以及这些因素对内墙乳胶漆抗菌杀菌、降解有害有机物等性能的影响，成功地开发了纳米改性建筑外墙和内墙乳胶漆产品。

As the foundation of ultrasonic testing of composite materials, this thesis is intended to explore in detail a number of features of wave propagation in anisotropic plates, and the following essential problems will be considered:(1) Propagation of plane bulk waves in homogeneous and orthotropic anisotropic media;(2) Lamb wave propagation in multilayered anisotropic plates;(3) Influence of isotropic solid or liquid loading on Lamb wave propagation in anisotropic solid media;(4) Influence of interface layers on Lamb wave propagation in layered anisotropic composite laminates;(5) Dispersion characteristic analysis of attenuation Lamb wave while existing an thin viscous layer which is used for simulating the poor curing in adhesively bonded joints.

作为复合材料超声检测的基础，本文研究了如下国际前沿性的课题：（1）平面体波在正交均匀各向异性媒质中的传播；（2）多层各向异性媒质中Lamb波的传播；（3）各向同性固体或液体负载对各向异性固体媒质中Lamb波传播的影响；（4）界面层对层状各向异性复合媒质中Lamb波传播的影响；（5）胶粘剂未固化而呈现粘弹性时粘接结构中衰减Lamb波的频散特性分析。

The thermal residual stress is a type of short-rang internal stress between matrix and whisker in composite. It was verified that the thermal residual stress could not be released and could not cause the macro-strain, although the diffraction angle of matrix was shifted in composite.

复合材料中热残余应力是基体与晶须之间的短程内应力，试验证实热残余应力虽可引起基体衍射峰位移动，但不会造成复合材料宏观应变而自然释放。

Based on the laminate theory, a laminate weakened by damage is treated as an anisotropic thin plate. Using the complex potential method in the plane theory of elasticity of an anisotropic body, the series solution of finite anisotropic thin plate containing an elliptical inclusion is proposed with the help of Faber series. A hybrid element with an elliptical inclusion for anisotropic materials is obtained by using the hybrid variable principle, and the element efficiency is verified by numerical examples. The state of the damage is modeled by an elliptical soft inclusion, and using the point stress criterion based on characteristic curve and Yamada-Sun etc. criteria, the prediction of the strength of a composite laminate with damage is set up. The effects of various parameters on the stress distribution and the residual strength of a composite laminate weakened by damage are detailedly studied.

首先基于经典层板理论，将复合材料层板的弹性问题化归为均匀各向异性板来求解；采用各向异性体平面弹性理论中的复势方法，以Faber级数为工具，给出了有限大含椭圆核各向异性板弹性问题的级数解形式；利用杂交变分原理，成功导出含椭圆核各向异性板杂交应力有限元，并用算例验证了该单元的可行性和有效性；采用含刚度折减椭圆形弹性核的冲击损伤模型，引入基于特征曲线和Yamada-Sun破坏准则的点应力判据，建立了含损伤复合材料层板剩余强度的分析方法；通过数值计算详细讨论了各种几何参数对损伤层板应力分布、剩余强度的影响，得到了一系列对工程应用具有实用价值的结论。

Manufacturing the contact cable by material composite technology is a newly developed method in recent years. Due to its anisotropism and excellent ability of interfacial combination, in-situ composite shows a wonderful potential to giving the attention to the strength and the conductivity of conductive materials at on time.

采用材料复合技术研制导电材料是近年来发展起来的新方法，由于自生复合材料的各向异性和良好的界面复合能力，使其在解决导电材料的轴向强度和导电性的综合性能方面表现出了极大的潜力。

UV curable coating was used as the dispersion system. The effect of PMMA microspheres, PMMA/TiO2 nano-composite particles and dulling agent on the antiglare property, the viscosity, the mechanical property, as well as the chemicals resistance of the film was studied in this paper. The result showed that the film had better comprehensive property when 0.5% PMMA microspheres, 0.5% PMMA/TiO2 nano-composite particles and 0.75% dulling agent were doped.

紫外光固化体系成膜速度快、涂层透明性好、力学性能优良，本文采用此体系固化成膜，考察了PMMA微球、PMMA/TiO2纳米复合粒子和消光剂对薄膜防眩光性能、涂料黏度、涂膜力学性能以及耐化学药品性能的影响，确定了防眩光涂膜材料涂层的粒子配方：0.5%PMMA微球、0.5%PMMA/TiO2纳米复合粒子和0.75%消光剂。

Fostering the concept of multi-culture firmly and mastering the development of advanced culture correctly are conductive to resisting terrorism, separatism of nationalities and ultraism of religion, which is of great academic theoretical, immediate and profound historical si...

牢固树立多元文化的理念和正确把握先进文化的发展方向，有助于在世界范围内自觉地抵制恐怖主义，民族分裂主义和宗教极端主义。不仅具有重大的学术理论意义，而且也具有重大的现实意义和深远的历史意义。

But if anyone walks in the night, he stumbles, because the light is not in him.

11：10 若在黑夜行走，就必碰跌，因为那光不在他里面。