查询词典 resonant

The operation condition of a series-resonant converter is equivalently analyzed under open-loop condition. OCC condition and selection basis of resonant parameter and switching frequency are determined. The relationships between LED number, transformer turns ratio and constant current error are also determined, which provide scientific basis for the selection of LED number and transformer turns ratio.

文中通过对串联谐振变换器开环工作状态的等效分析，确定开环恒流条件和谐振参数与开关频率的选择依据，以及LED数目、变压器变比与恒流误差之间的关系，为LED数目及变压器变比的优化选择奠定了理论基础。

This can result in a splitting ofwavelength-dependent loss band and make the codirectional mode coupling condition (of the fundamental core mode into cladding modes) be different at two principal input polarizations.In a PM-LPG fabricated with a PMF having relatively small birefringence , the adjacent resonant dips (slow-axis and fast-axis resonant dips) resulting from the two principal input polarizations have identical cladding mode order and the wavelength separation between them is several nanometers

这可能导致分裂的ofwavelength-dependent损失，使codirectional乐队的耦合条件(模式基本核心人才培养模式为层模式)是不同的两种主要的输入波在PM-LPG捏造和具体情况有相对较小的双折射，相邻的谐振(slow-axis和fast-axis引起共振蘸)的两种主要模式有相同的输入波的波长层顺序和他们之间的分离是几奈米的图案

Finaly,the features of tunneling effects in different dimensions were used to discuss and analyse the difference between the resonant tunne-ling and nonresonant tunneling effects for later discussion on the characteristics of resonant tunneling devices.

介绍了共振隧穿二极管物理模型的量子力学基础，重点讲解共振隧穿两种物理模型，从不同维度隧穿的特点分析共振隧穿和非共振隧穿的区别，为以后讨论分析共振隧穿器件的特性奠定基础。

Based on the laser longitudinal mode splitting theory, a novel scheme of dual-frequency laser with large frequency-difference is presented using electrically controlled birefringence of liquid crystal, and the transmitted resonant mode splitting by birefringent of Fabry-Perot etalon has been analyzed theoretically. A new element of liquid crystal Fabry-Perot etalon is designed and fabricated, which serves as aselector and splitter of both laser longitudinal modes and Fabry-Perot etalons transmitted resonant modes. Two different experimental systems of laser-diode end-pumped Nd:YAG laser have been set up using two different LDs, and the transmission of liquid-crystal cell have been measured. When the empty LCFP is inserted in the cavity of high-power LD pumped Nd:YAG laser, the oscillation of a single laser longitudinal mode have been observed, such a result shows that the designed and fabricated LCFP element is capable of selecting single axial mode. While an anti-reflected liquid crystal cell is inserted in the cavity of Nd:YAG laser end-pumped by the high-power LD, it is difficult to confirm weather the laser longitudinal modes have been spitted or not. The subject is summarized in this thesis and the improvement of the project has been presented.

论文以激光纵模的分裂理论为基础，提出了可望获得几十GHz甚至上百GHz的液晶电控双折射双频Nd：YAG激光器的总体方案，并对用双折射效应分裂F-P标准具透射谐振模进行了理论分析；设计并加工了一种集激光纵模选择、激光纵模分裂和F-P标准具谐振透射模分裂于一体的多功能元件——液晶电控双折射F-P标准具；建立了两种不同功率激光二极管端面泵浦的Nd：YAG激光实验系统，并对液晶盒的透射性质进行了测试；将未灌注液晶的空液晶F-P摘要标准具插入大功率LD泵浦Nd：、叭G激光谐振腔内，观察到了单纵模激光输出，说明所设计和加工的液晶F一P标准具具有纵模选择能力；将镀有增透膜的液晶盒插入大功率LD泵浦Nd八7AG激光谐振腔内，是否产生了激光纵模分裂现象还难以确定。

Microwave technique ; bandpass filter; complementary split ring resonators; zeroth-order resonant; resonant frequency ; susceptance slope parameter

微波技术；带通滤波器；互补分裂谐振环；零阶谐振；共振频率；导纳谐振参数

The temperature sensitivities of the resonant loss peaks are 0.230 dB/℃ and 0.312 dB/℃,and the temperature sensitivities of the resonant wavelengths are 0.057 nm/℃ and 0.086 nm/℃ for jacketed and unjacketed fibers,respectively.

该写制结构能较好地控制MLPFGs的透射谱，同时结构简单、易擦除、成本低，在光纤传感领域具有一定的应用价值。

With the decrease of gap width and box draft, the position of the resonant wave number increases. The band width of the resonant wave number depends on gap width closely. With the increase of gap width, the band width increase.

共振频率主要随着吃水深度的增大而减小；其次随着狭缝宽度的增大而减小；再者就是随着箱体宽度的增大而减小。

Mechanical transmision devices of any control system have some elastics This Ki- nd of mechanical resonant frequency produced by the elasticity is usually higher and it's far away from the mediumfrequency domain sensitive to dynamic characteristics, so the resonant effecr on the system can be neglected.

任何控制系统的机械传动装置都有一定弹性。通常，这种弹性形变所产生的机械谐振频率&较高&，远离对系统动态品质敏感的中频段，谐振对系统的影响可以忽略。

At the same time, the resonant frequencies of four kinds of resonator are calculated by the programs which are made with Matlab software. The effect of resonator geometrical parameters on resonant frequency is theoretically analyzed. In order to carry out the acoustic and aerodynamics performances tests, seven resonators are designed and made, and a specialized engine intake silencer and exhaust silencers test bench was designed. The tests and analysis are performed as well.

在此基础上设计并加工了两类七个共振型进气消声器，研制了发动机进排气消声器性能测试实验台，开发了发动机进排气消声器声学性能测试软件，并在该实验台上测试了所设计的进气消声器静态工况下的传声损失，从实验的角度研究了共振腔的尺寸、形状对其共振频率的影响及其趋势。

The transfer function of the LLC resonant converter can be obtained by using the circuit impedance, ratio of resonant inductance, and quality factor.

其后级之半桥LLC谐振式转换器藉由推导电路阻抗、谐振电感比例值与品质因数得到转移函数，以及利用适当的谐振电路的设计与切换频率的调变的方式达到输出电压稳定，并且令功率开关具有零电压切换之功用，以降低功率开关的切换损失。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。