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CETA establishes guidelines for its branches, aiming at promoting industrial development, technical advancement, and standardization of management.

协会制定了地区组活动的指导方针：以推动行业生产发展、技术进步、管理规范为目标，以开展信息交流、技术交流、技术培训、技术协作为主要内容，以会员需求为出发点，围绕协会中心工作，因地制宜地开展有地区特色的活动。

The policy and objective of CETA in the new era are: under the guidance of Deng Xiaoping's Theory and the important thought of "Three Represents", adhering to scientific outlook on development and building a harmonious society, implementing two strategies throughout the industry and achieving one objective, namely, implementing the industry technology-based, standardization and regularization strategy and implementing the product brand strategy; aiming to build the Chinese entertainment equipment industry into a new hi-tech, group-based and international industry.

协会在新时期的方针和目标是：在邓小平理论和"三个代表"重要思想指导下，按照科学发展观和构建和谐社会的要求，在全行业中实施两项战略、实现一个目标，即：实施行业科技化、标准化、规范化战略，实施产品品牌战略；将中国演艺设备行业建设成高科技、集团化、国际化的新型产业。

Aiming at the project request, the paper firstly introduces the theory of Frequency Hopping Communication, the theory of sampling and the principle of spectrum analysis using discrete Fourier transform, then combined with the characteristic and superiority of FPGA designs a channelizing detection method for the carrier frequency in Ultrashort Frequency Hopping signal based on FPGA.

然后结合现代可编程器件FPGA的特点与优势，设计了一种基于FPGA技术的信道化电子侦察方案。

Based on the research results of Chaos theory, in this dissertation, it has made detailed analysis of the chaotic signal generator. Firstly, the characteristic and various detection methods of chaotic signal are recommended. Secondly, with the aid of software, such as MATLAB, PSPICE, EWB, etc, discussion of the process of generating chaotic signal proceeds. Through simulation, the output result of several kinds of chaotic circuit are analyzed and compared. Thirdly, aiming at Chuas chaotic circuit, through debugging, the impacts by components and parts in the circuit, such as operation amplifier, capacity, inductor, etc, has been further investigated. And then provides a new scheme to implement Lorenz chaotic system, the circuit design and analysis are presented in detail and it can be realized by the hardware of programmable arrays FPGA, the experimental results indicate that this scheme has the advantages of easy operation, flexible design and high efficiency. An application example in secure communications is also provided. Finally, through picking up the characteristic parameter-Lyapunov exponent of the Chaos we can analyze the performance of different chaotic signal generators.

本文在混沌理论研究成果的基础上，对混沌信号的产生做了详细的分析，涵盖以下内容：首先介绍了混沌的定义，混沌信号的基本特性和各种判别方法，特别是对简单的一维Logistic映射的硬件实现问题做了初步探索；其次对混沌信号的产生方法进行讨论，借助于MATLAB、PSPICE、EWB等仿真软件，对几种混沌电路输出的混沌信号进行了分析比较，并在此基础上针对典型三阶连续自治系统Chua's电路作进一步实验研究，通过混沌电路调试，深入研究电路中各元器件，特别是运算放大器、电容、电感等对混沌信号时域以及频谱的影响；再次研究连续混沌系统的数字化硬件产生，设计了Lorenz混沌电路在现场可编程门阵列FPGA上实现的新方案，在保密通信中的应用实验结果表明该方案具有操作简单、设计灵活、效率高等优点；最后针对不同混沌系统，采取不同算法，提取混沌特性参数Lyapunov指数，进而对不同的混沌信号发生器的性能进行了分析。

Aiming at computer relay protection, it presents the characteristic matrix which can be used in detecting faults in main memory.

针对微机保护系统，给出了可用于其主存故障检测的特征矩阵。

Aiming at the situation that product configuration can not adapt to different products and knowledge expression is complicated, product configuration based on product characteristic vector is presented.

针对产品配置对不同产品的适应能力差、配置知识表达复杂的现状，提出基于产品特征向量的知识表达方法。

Aiming at the problems of over-fitting and generalization for neural networks, the locally most entropic colored Gaussian joint input-output probability density function estimate is studied, and a new method by means of Chebyshev inequality is proposed to self-revise respectively according to every cluster.

针对神经网络的过拟合和泛化能力差的问题，研究了样本数据的输入输出混合概率密度函数的局部最大熵密度估计，提出了运用Chebyshev不等式的样本参数按类分批自校正方法，以此估计拉伸样本集，得到新的随机扩充训练集。

The China Chemical Engineering Reagent Website(www.ce-r.com)focus in the information service market of chemical engineering products, with integration of the organic chemical engineering, inorganic chemical engineering, chemistry reagent , petroleum chemical engineering, foundation chemical engineering, plastics, rubber, coating, etc. we are aiming on the profession different characteristics and mainly the related product carry on research and analysis of system, to building up the price database service system.

中国化工试剂网（www.ce-r.cn）专注于化工产品市场资讯的信息服务，整合化工行业内的有机化工、无机化工、化学试剂、石油化工、基础化工、塑料、橡胶、涂料等几大行业，针对各行业不同的特点及主要相关产品进行系统的研究与分析，建立系统的产品价格服务体系。

The China Chemical Engineering Reagent Website(www.ce-r.com)focus in the information service market of chemical engineering products, with integration of the organic chemical engineering, inorganic chemical engineering, chemistry reagent , petroleum chemical engineering, foundation chemical engineering, plastics, rubber, coating, etc. we are aiming on the profession different acteristics mainly the related product carry on research analysis of system, to building up the price database service system.

中国化工试剂网（www.ce-r.cn）专注于化工产品市场资讯的信息服务，整合化工行业内的有机化工、无机化工、化学试剂、石油化工、基础化工、塑料、橡胶、涂料等几大行业，针对各行业不同的特点及主要相关产品进行系统的研究与分析，建立系统的产品价格服务体系。

Aiming at some problems of oil﹠gas drilling safety assessment methods, such as bad cooperation, not scientific of general judgment, not comprehensive or exact of the index contents and so on, considering the wide meaning, complex, high chiasma and faintness of oil﹠gas drilling process safety assessment index and the complexity of the assessment system itself and the particularity of hoisting system, this paper mainly studies on safety assessment indexes system and safety assessment method of oil﹠gas drilling hoisting system process .

针对目前油气钻井作业安全评价分析方法的配合性差、综合评判的科学性不强、评价指标反映的内容不全面和不准确等问题，并考虑到油气钻井作业安全评价指标体系中评价指标含义面广、交叉性和模糊性强，以及评价指标体系结构自身的复杂性和油气钻井作业八大系统中起升系统作业的特殊性，本论文重点对油气钻井起升系统作业安全评价指标体系及安全评价分析方法进行了研究。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了