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When the residual modes are high frequency modes, it will be suitable to use a filter to prevent the spillover by filtering the measuring signals. The closed loop poles would excurse if the measuring signals were filtered directly.

对于剩余模态和控制模态分离得较好的受控对象，可采用对测量信号进行滤波去除信号中剩余模态分量的方法防止溢出问题。

To the fundamental possibilities of program can be attributed: monitoring the disk state , detailed reports about the SMART state of the disk, the flexible setup of the warning modes , testing the temperature of hard disk and different modes of alert.

基本计划的可能性可归於：监测的磁盘状态，详细报告的SMART状态的磁盘上，灵活设置预警模式，测试温度的硬盘和不同方式的警觉。

In this article two functional modes of the Fly-back Converter (Continuous Conduct Mode and Discontinuous Conduct Mode) are particularly analyzed, which include their characteristics, applications, the critical pattern of two functional modes is argued, both the exact boundary from the angle of circuit parameters is crystallized, at the same time, basic principle of PFC under the DCM mode is introduced, which settle theoretical basis for the subsequent design; by establishing the mathematic model of the converter, a further investigation of the configuration is made, qualitatively and quantitatively, analyzed to settle exactly theoretical basis for the subsequent emulation and the experimental parameter; from the angle of steady-state analysis, the transfer function of the system is deduced to establish dynamic small-signal state equation, emulating the system with the help of matlab, then according to the simulation result and the theory of PFC revise the system, lastly, we adopt the project which add a zero-pole compensator to the voltage loop, by this way, a satisfied system performance is gained and the PFC scheme is ensured successfully; finally, based on the previously-done work, we combining with the situation of specific design requirement, acquired the numerical value of each unit devices in this converter

详细分析了反激式变换器的两种工作状态，连续模式(Continuous Conduct Mode ，简称CCM)和断续模式(Discontinuous Conduct Mode，简称DCM)以及各自的特点、应用场合，论证了两种工作状态的临界模式，从电路参数的角度明确了二者的界限，同时还介绍了DCM模式下PFC的基本原理，为后面的设计奠定理论基础；通过对整个变换器系统建立准确的数学模型，对此变换器的电路结构做了进一步的研究，定性、定量地分析了变换器各部分的工作状态，为仿真和实验参数的确定以及电路参数的优化提供理论依据；从稳态分析的角度，为系统建立了动态小信号状态方程并推导出系统的传递函数，利用matlab对系统进行仿真，进而根据仿真结果以及PFC的相关理论对系统进行校正，采用在电压环加入零点—极点补偿器的设计方案，得到了满意的系统特性并且保证了PFC的顺利实现；最后，在前面所做工作的基础上，结合设计要求计算出此变换器系统中每个元器件的数值，利用Pspice对其进行了仿真、优化，然后根据仿真结果搭建了硬件电路。

The main problem of the mode synthesis method , applied in structural vibration analysis of prefabricated bridges, is how to select relevant number of low frequency modes synthesized during the course that displacements of substructures are expressed in generalized coordinates that are defined by displacement modes.

模态综合法应用于装配式桥梁结构振动分析的主要问题，是在将子结构坐标缩聚为模态广义坐标的过程中，如何选取适当数目的低阶模态来参与综合。

First, based upon the fields in the single cavities, open and short modes are constructed, whose coupling holes on disks are shorted magnetically and electrically respectively. Second, the whole field in the chain is expanded with the short and open modes. With the Galerkin method and the second vector Green theorem, it is possible to describe the physics problem by a simple general eigenvalue matrix equation. Here, the dispersion curves in periodical structures are available.

它首先利用有限元等方法计算各加速单腔中的电磁场，根据一定规则构造成所需的开模和闭模，然后把整个长腔链加速结构中的场用这些开模和闭模展开，再利用伽略金方法和第二矢量格林定理进行数学变换，考虑各模式在加速腔壁和腔间耦合孔处的边界条件后，就能把加速结构中电磁场用数学上的广义本征值矩阵问题描述，从而能够得到所求的色散曲线和电磁场形态。

During building the system of surpervising and early-warning, the article introduces the system of index early-warning and the system of statistics early-warning, and the work flow of forecasting and analyzing the screened early-warning guide-line of real estate market, and emulate the two models. The sub-system of eliminating-warning mentioned its modes and measures (also called the modes and measures of macroscopical management).

本文在数据处理分析子系统中，主要介绍了数据的处理及数据的分析，初步建立了房地产市场预警指标体系；在监测预警系统的构建过程中，主要介绍了指数预警系统和统计预警系统对其筛选过后的房地产市场预警指标进行预测分析的工作流程，并对这两种模型进行了模拟仿真；在排警子系统中，主要介绍了排警方式和排警措施(即宏观调控方式和宏观调控措施)。

This article is based on the research of Mr. Li Yinghai"s monograph the modes of Music of the Han nationality and their harmony, his music composition and a series of his vocal music works, piano works. From the structure of the chord, the harmonic progression, the modes and tonality, texture composition style, the style of dealing with the skill and technique of national music sound simulation, etc. the author expounds Mr. Li Yinghai"s great achievement and his precious experience on academic research and application on national mode harmony in detail.1. Music composition should regard nationalitys traditional music as foundation, and at the same time use European traditional skill and technique of music composition for reference, seek the harmony of traditional skill and technique, modern idea and national style. Only in this way could we promote research of the national music theory and creation of the national music.2. Theory stems from practice, guides practice again at the same time. And theory is developing, perfecting constantly in practice.

文章以黎英海先生的理论专著《汉族调式及其和声》以及他创作、改编的一系列声乐作品、钢琴作品为研究对象，从和弦结构、和声进行、调式调性、织体写法、间音处理手法、民族音乐音色模拟技法等方面详细论述了黎英海先生在民族调式和声理论的研究与应用上取得的丰硕成果与宝贵经验及其给我们的两点启示：1、音乐创作应以民族传统音乐为根基，以欧洲传统作曲技法为借鉴，努力探求音乐创作中传统技法、现代理念与民族风格的和谐统一，以此推动民族音乐理论的研究与民族音乐的创作。2、理论来源于实践，同时又指导实践，并在实践中不断发展、完善。

The acoustical radiation power is expressed as a Hermitian quadratic form, while the radiation modes is determined by general eigenvalue decomposing, and then the radiation efficiency is computed via the orthodoxy of radiation modes with regards to impedance matrix and average velocity matrix; lastly, the validity of the method is proved by pulsating sphere and radiating cube with analytical results.

先将结构的声辐射功率表示为一个正定的厄米特二次型，运用广义特徵值分解求解了复杂结构的声辐射模态，然后利用声辐射模态关于阻抗矩阵与均方速度祸合矩阵的正交性，求解了复杂结构的声辐射效率，最后用具有解析解的脉动球与辐射立方体验证了该方法的有效性。

According to the studied results at present, the studied objects are mainly thin plate and beam about sound radiation mode, a method computed sound radiation mode of complex structure is presented in this dissertation, according to the results of the previous two chapter, a theoretical method to solve acoustical radiation mode and acoustical radiation efficiency of complex structure by boundary element method and acoustical radiation theory is posed, the acoustical radiation power is expressed as a Hermitian quadratic form, while the radiation modes is determined by general eigenvalue decomposing, and then the radiation efficiency is computed via the orthodoxy of radiation modes with regard to impedance matrix and average velocity matrix; lastly, the validity of the method is proved by pulsating sphere and radiating cube with analytical results. According to results of the form three chapter, the structure sound radiation sensitivity is studied in detail, the sound radiation power of structure can be expressed as positive Hermitian quadratic form, the sound radiation sensitivity can be expressed as two parts by partial differential with respect to design variable, which are sensitivity of boundary velocity and impedance matrix, combined with the theory of FEM and BEM, the structure sound radiation can be translated to the analysis of structure dynamic sensitivity and impedance matrix sensitivity. The theory posted in this dissertation is tested by the FEM software ANSYS and the software AAS programmed by author.

在前几章的基础上，通过结构声辐射的模态理论对结构的声辐射的机理进行了深入地探讨，针对目前声辐射模态的研究对象主要是简单的板和梁类结构，提出了一种计算复杂结构声辐射模态的方法，利用前两章研究所得的结论，将边界元方法与广义特征值的理论结合起来研究了复杂结构的声辐射模态与声辐射效率，先将结构的声辐射功率表示为一个正定的厄米特二(来源：ABb7C论文0909网www.abclunwen.com)次型，运用广义特征值分解求解了复杂结构的声辐射模态，然后利用声辐射模态关于阻抗矩阵与均方速度耦合矩阵的正交性，求解了复杂结构的声辐射效率，最后用具有解析解的脉动球与辐射立方体验证了该方法的有效性。

By relations between hour angle and the tracking angle of several single\|axis tracking modes, selecting for controller methodologies of several single\|axis tracking modes are acquired.

特别是使用了MATLAB程序处理数据，得到南北水平轴跟踪时跟踪角和太阳时角间的关系图像，着重分析了此时采取混合跟踪的可行性和适用性。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。