查询词典 resonant

Five dimensional asymptotic modal system describing liquid nonlinear resonant sloshing is derived based on Narimanov-Moiseev third order asymptotic hypothesis.

首先利用Narimanov-Moiseev三阶渐近假设关系，推导出描述液体作非线性共振晃动的5维渐近模态系统。

A new ZVS-ZCS ARCPI (auxiliary resonant- commutated pole inverter) is proposed to solve the problems, such as extra loss from auxiliary circuit, variable commutation duration, and delicate reliability etc., which exist in other ARCPIs.

辅助谐振换流逆变器拓扑结构中存在着诸如由辅助换流回路损耗引起的转换效率低、由负荷电流变化引起的变辅助换流周期和稳定性差等问题，为此提出了一种基于变压器辅助换流的新型ZVS-ZCS逆变器。

This paper proposes a generalized averaging method for modeling resonant inverter applied to electronic ballast.

摘 要：提出了用广义的状态空间平均法建立电子镇流器谐振逆变器数学模型的方法。

Such a broad and resonant voice has no problem singing baritone.

这么宽洪的声音，唱个男中音一点问题也没有！

Based on the research performed on its temperature characteristics, and the quartz resonant force sensor's self—temperature—testing method of employing the beat frequency is presented.

研究了传感器的温度特性，并在此基础上提出了利用差值频率实现石英谐振式传感器温度自测的方法。

Therefore, it has significance to optimize the demodulation curve. By the use of expansion of Bessel function and optical field overlapping method, the relation between the demodulation curve and the resonant frequency deviation was analyzed.

利用贝塞尔函数展开和光波场叠加的方法分析了谐振式光纤陀螺调相检测系统解调输出信号与谐振频率偏差之间的关系，系统采用的是带有铌酸锂相位调制器的相位谱检测技术。

The works in the project just done can be summarized as five respects.(1) A device was designed to fabricate the asymmetrical resonant cavities by a pendant drop. A series ARCs with variable parameters provides a valuable experimental method for investigating the characteristics of ARCs.(2) The relationship between the number of active modes and the shape parameters in an ARC was investigated. The experimental lasing threshold was compared with theoretical result, the good agreement between two shown that it was the decrease of the number of active modes in an ARC that decreased lasing threshold.(3) Dye lasing gain was used to enhance the signals of stimulated Raman scattering of the weak gain Raman modes in a circular cavity made by a pendant drop, the instantaneous SRS spectra of weak gain Raman modes in ethanol was obtained by this new method.(4) The SRS signals of minority compound in a binary chemical complex was obtained by using dye lasing gain method. The detection concentration of minority compound was reduced to an order compared with normal SRS method.(5) A cylindrical circular cavity was formed by a liquid jet, which was used to reduce the pump intensity required for laser induced plasma spectroscopy. The limit of detection of trace element in aqueous sample was greatly decreased by this new method.

我们设计并成功制作了使悬垂液滴连续变形的装置，用此装置可以方便地改变非圆对称谐振腔的几何参数，为ARCs的研究提供了一种有效的实验方法；研究了ARCs中活性模式数和变形参数间的变化规律，激光阈值的数值计算结果和激光辐射的实验结果作了比较，二者吻合的曲线说明ARCs中活性模式数量的减少是受激辐射放大阈值降低的原因；在由单元化合物构成的微型圆对称谐振腔中，首次尝试用"激光增益"增强弱增益拉曼模式的受激拉曼散射信号，获得了乙醇分子中弱增益拉曼模式的瞬态SRS光谱；在由二元混合物构成的微型圆对称谐振腔中，用染料的激光增益增强了少量化合物的SRS信号，把少量化合物的SRS信号探测浓度降低了近一个数量级，在SRS应用于瞬态过程的组份分析方面做了卓有成效的探索；用石英毛细管形成的稳定液拄构成拄形谐振腔，降低了激光诱导等离子体光谱需要的激励能量，有效地降低了水相样品的痕量元素分析极限，为LIPS应用于微量元素的化学分析开拓了一条新的技术路线。

The birefraction filter is also designed to get satisfying output-parameters. At last, the Ti:sapphire laser with flat-flat resonant cavity is pumped with the pumping source at 532nm. The pumping source is got from the frequency doubling of Nd:YAG laser.

对调谐元双折射滤光片进行了设计，采用厚度比为1：2：10的三片组合型双折射滤光片，最薄晶片厚度d 1 = 0.45mm，光轴与滤光片法线方向呈90度角，以使系统的输出参数达到预期的要求。

We also studied the resonant Raman-scattering in the ZnCdSe/ZnSe QWs with different well width, and found the Raman signal can be only observed in the QWs with width comparable to the Bohr radius of the excitons in the ZnCdSe QWs, which implies the strong correlation between the electrophonon interaction and the quantum confinement effect.

通过采用不同宽度的量子阱，我们研究了ZnCdSe/ZnSe单量子阱的共振喇曼散射特性，发现共振喇曼散射信号只在阱宽与激子玻尔半径相当的单量子阱中（5nm和2.5nm）才能观察到。

The Raman scattering intensity of single wall boron nitride nanotubes is studied based on non-resonant bond polarizability model.

利用非共振情况下的健极化模型理论，对单壁氮化硼纳米管的拉曼光谱强度进行研究。

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。