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For implementing the encryption/decryption and information hiding for digital multimedia, and aiming to generate enough large cipher key space, the accurate period of high dimension random matrix scrambling transformation is studied with the help of number theory and algebraic theory.

为了适合数字多媒体特性，实施多媒体加密与信息隐藏，生成充分大的密钥空间，使用了数论、近世代数、算法分析等工具，对高维随机矩阵置乱变换的精确周期进行了研究。

Aiming at the detection of single harmonic current,an improved sliding-window algorism was proposed.The simulation results ...

仿真和试验结果表明，该混合型有源滤波器不仅具有良好的滤波效果，而且能减少逆变器电流。

Aiming at the retaining problem of the frozen shaft in the deep alluvium of 500～700 m, the high strength reinforced concrete shaft lining is presented.

针对500～700m深表土中冻结井筒的支护难题，提出合理的技术途径，即采用现浇高强钢筋混凝土井壁结构。

Especially aiming at the asymmetric structure of the cast, the allocation of aluminous liquid during the filling process was presented and the concept of structure mass fraction was inducted.

针对铸件的不对称结构提出了充型过程中铝液的分配问题，引入结构质量分数的概念。

Aiming at the complexity of DSRC (Dedicated Short-Range Communication) protocol, the fuzziness and ambiguousness resulted from the natural language of the protocol, the protocol engineering method is adop ted to guarantee the integrality, correctness, security, portability and standardization of the protocol.

针对专用短程通信协议的复杂性以及协议本身由自然语言承载、存在模糊性和二义性的特点，采用协议工程方法来保证协议的完整性、正确性、安全性、可移植性和标准化，并采用SDL对DSRC协议进行形式化描述，在此基础上提出了DSRC协议验证的步骤和实现方法，并对所开发的协议SDL模型进行验证，结果表明了协议的逻辑正确性。

This paper researches on optimum design of large crude oil tanker structures with mathematical programming, aiming at the minimum weight of the cargo tank amidships.

本文采用数学规划的手段，对大型油船中部舱段结构进行了以减轻结构重量为目标的优化设计研究。

Aiming at online impurity detection of ampoule injection, a system based on machine vision is developed and analyzed. The hardware structures, configuration of imaging card and so on are discussed.

针对1~20 mL安瓿瓶装溶液的在线异物检测，本文分析并设计了基于机器视觉的安瓿溶液在线异物检测系统，介绍了检测系统硬件结构和图像采集卡等配置。

Aiming at the chaos complexity activities which may occur during the evolution process of mining area ecosystem, we emphatically analyze the application of associated dimention judgment method and Lyapunov factor analytic approach based on phase space restructuring technique. We can ascertain whether mining area ecosystem have chaos characteristic or not according to these methods. It has important theory value for complexity research of mining area ecosystem.

其次，针对矿区生态系统演变过程中可能出现的混沌复杂行为，基于相空间重构技术我们重点分析了关联维数判断法和Lyapunov指数分析法的应用，依据这些方法，我们可以定量的判断矿区生态系统是否具有混沌特性，这对于我们进行矿区生态系统的复杂性研究具有重要的理论价值。

This paper investigates the ancestress temple in Huizhou area, aiming at discussing their statue and function in women's lives as well as their cultural connotations.

摘要本文以徽州地区女祠堂为研究对象，力图探讨它在妇女生活中的地位与作用以及它所包含的文化内涵。

Aiming at the wedge angle disfigurement of plate in rolling process, the forming mechanism of the disfigurement was analyzed, the forecasting model of it was proposed and the resolvent was given, which can offer a certain reference for the elimination of the disfigurement in the plate plant.

针对中厚板生产中常见的轧件尖角缺陷，分析了该缺陷的形成机理，提出了其预测模型并提供了解决方案，可以为实际生产中该种缺陷的消除提供一定的参考。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。