查询词典 characteristic set

The holistic design of the system and resolved the designs of software and hardware based on VXI bus are put forward according to the demand of test system. The hardware and software is designed, including the formation and design of hardware system, visual instrument software architecture, program design for instrument driver, high speed real-time data collection. In the dynamic test program, the idea of"software is instrument"was applied to meet the diverse test demands. Last, it is proposed that the VXI test system be developed to more totalization and networked. The basic theory of system identification was introduced briefly at first. The principle of spectrum analysis system identification based on Wiener-Hopf equation was expatiated. and the questions in applying Peusdo Random signal as spectrum analysis methods stimulate signal was studied, The generation principle of the peusdo random signal is researched, the characteristic of peusdo random are analyzed from time domain and frequency domain, the inverse repeat peusdo random signal is brought forward to make up the shortage of ordinary peusdo random signal. And a new chaos genetic algorithmis presented to solve the unprecise problem of the traditional method. In the servo valve dynamic characteristic test system, the spectrum analysis methods was applied successfully, the servo valve dynamic characteristic could be acquired rapidly and exactly, the test results were analyzed and the ameliorate methods were brought forward at last.

结合航天某集团液压测试中心测试系统的需求，提出了基于VXI总线的液压测试系统的整体设计方案，完成了测试系统的硬件设计与软件设计，包括硬件系统构成与设计、虚拟仪器软件结构、仪器驱动程序设计、高速同步实时数据采集等内容；以伺服阀动态特性测试为例设计了测试模块，该模块体现了VXI总线仪器软件开发所倡导的&虚拟仪器&的思想，以软件的灵活应用满足了不同的测试需求；结合自动测试系统的发展，研究了VXI测试系统与网络技术结合，实现各种软硬件资源共享，进一步提高设备及数据的利用率和系统的扩展性，使自动测试向综合化、网络化方向发展；研究了伪随机信号作为谱分析法辨识的激励信号时存在的问题，讨论了伪随机信号的产生机理，从频域和时域分析了伪随机信号的性质及其应用，提出了用逆重复伪随机信号弥补了普通伪随机信号的不足，并以混沌遗传算法对逆重复伪随机信号产生过程中的参数进行优化，可以更合理而不是凭经验产生需要的逆重复伪随机信号。

From thematic perspective, viewing system of theory of Chinese characteristic socialism with integral sex of the theme is whole scientific and academic system, seeing itself of system of theory of Chinese characteristic socialism with thematic oneness is propose form unifiedly, but as a result of objective and actual level sex feature, a few kinds of academic configuration of system of theory of Chinese characteristic socialism present an apparent administrative levels sex.

从主题的视角，以主题的整体性看中国特色社会主义理论体系是完整的科学理论体系，以主题的统一性看中国特色社会主义理论体系本身是个统一的建构，但由于客观实际的阶段性特征，中国特色社会主义理论体系的几种理论形态呈现出明显的层次性。

To resolve above problems, the paper analyzes the flow rate characteristic of pneumatic component and design a system for testing flow rate characteristic. Finally I will experiment to make clear the flow rate characteristic. The paper is disparted to five chapters.

本论文正是针对以上问题，对气动元件流量特性进行深入的分析，并在此基础上设计出流量特性测试系统，最后根据某些疑问做试验，加深对流量特性的理解。

Chapter two announces that outer space has a characteristic of a society---space entity via rather systematic discussions on the concept, systematic composition, characteristic and influence factor of outer space of high residential buildings, thus brings us deep , overall knowledge to the intension , essence and characteristic of the outside space of high residential building, turn back the superficial and one-sided understandings fettering us for long.

第二章通过较为系统的论述高层住宅外部空间的概念、系统构成及特征、影响因素等内容，揭示了外部空间所具有的社会---空间统一体特征，从而使我们对高层住宅外部空间的内涵、本质和特征具有深刻、全面的认识，扭转长期以来束缚我们的肤浅片面的认识。

The fifth chapter gets the disturbing characteristic of the flaw by analysis the material characteristic. It analysis and calculates disturbing characteristic of the length of the limiting flaw with the special mathematics mode, and it notarizes the flaw life with the COD way on the basis of analysision of magnitude of the stress.

本文第五章通过对材料属性的分析，得出裂尖启裂因子的分布特性，通过特定的随机数学模型，分析计算并导出了临界裂纹长度的分布特性，并在对应力幅的分析基础上，运用COD方法来确定裂纹扩展寿命，最终运用Monte-Carlo模型计算得到了裂纹扩展寿命的分布特性。

By the analysis of the characteristic and restriction of the gear components ,this paper upbuilds the characteristic model based on the restriction and actualizes data transmission and information sharing among CAD.CAE and CAPP .This paper analyzes the general principle of parameter determination and strength check about gear and researches the algorithmic of gear strength check based on the characteristic .This paper introduces expert knowledge into respective procedure of CAD.CAE and CAPP and actualizes the intellectualization in design process .strength analysis and process planning .

以齿轮类零件作为研究对象，在分析了其特征及约束的基础上，利用数据库技术和图形单元建模技术，建立了基于约束的特征模型，实现了CAD／CAE／CAPP之间的数据传输和信息共享；分析了齿轮参数确定、强度校核的一般原则，进行基于特征的齿轮强度校核的算法研究；将专家知识融入在CAD、CAE、CAPP各个过程中实现了设计过程、强度分析和工艺分析的智能化。

It is meaning to research on the compressive characteristic of concrete small hollow block walls with concrete core columns in order to make use of the material well and improve characteristic of the walls.To concrete small hollow block walls, five modes of block walls of different ratio of height to width have been made. The Characteristic of the block walls of different ratio of height to width with horizontal load and vertical load have been analyzed.

对不同的高宽比的砌块砌体墙在不同的竖向荷载作用下的水平抗剪性能进行了数值分析，计算了墙体的水平开裂荷载和破坏荷载，模拟了墙体从开裂到破坏的全过程，分析了不同的竖向荷载和不同的高宽比对墙体水平抗剪性能的影响。

In order to study diesel locomotive AC-DC electric-drive system, this thesis makes a analysis of the primary capability parameters of AC-DC electric-drive system, under the train"s running state, such as traction dynamotor"s voltage/ current, pulling power and train velocity, then makes a research in the ideal running characteristic and the adjust characteristic of dynamotor and the speed adjust characteristic of electromotor with the theory of AC-DC electric-drive.

本文针对内燃机车交-直电力传动系统，对机车运行过程中，传动系统的主要性能指标参数(如牵引发电机电压/电流、牵引力、机车速度等)及其关系进行分析；并运用交-直电力传动原理，对机车电力传动过程中牵引发电机的理想外特性、调整特性及牵引电动机的速度调节特性进行研究；通过参考东风7型内燃机车的性能、结构参数，运用Visual Basic对内燃机车交-直电力传动系统进行数学建模。

Industry Design; Enfant Product; Bionic Design method; Enfants Characteristic; Cognize Biology Characteristic; Predigest Biology Characteristic

论文导师陆长德，论文学位硕士，论文专业设计艺术学论文单位西北工业大学，点击次数 5，论文页数 97页File Size14248K

Then, if there are a plurality of characteristic areas, each of which is characterized by the high frequency in the luminance histogram, a characteristic emphasis circuit ( 7 ) performs grayscale extension processing for the plurality of characteristic areas.

而且，特征强调部(7)在检测出的亮度直方图的频率频度多的特征区域为多个的情况下，对于该多个特征区域进行灰度等级扩展处理。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。