查询词典 resonant

Firstly, a new design method of cam profile has been developed by using finite terms of Fourier Series in the cycle of cam angle as the basic equation of cam profile, so the difficulty of base circle wave existing in the method of resonant cam design can be eliminated. On the other hand, the method proceeds from the acceleration of cam profile, which makes the acceleration not only smooth and continuous, but also easy to be controlled, and the cam profile with good performance can easily be acquired.

此方法用以凸轮包角为周期的富立叶级数有限项作为凸轮型线的基函数，可以免去谐波凸轮设计时控制基圆波动的困难；此方法又是从凸轮型线的加速度曲线入手进行设计，使型线加速度不但光滑、连续，而且形状容易控制，便于设计出动力性能优良的凸轮型线。

The basic principle of the trumpet is that blowing into the tube through taut lips sets up an audibly resonant vibrating column of air.

小号的基本原理（作者注：以及它的&兄弟姐妹&都有同样的原理）是通过嘴将空气吹进铜管体内使空气由于压力变化在里面共鸣振动发出声音。

WuT J,Liu C Development of switching power supply tot series resonant laser.

串联谐振型激光器用开关电源的研制。

The mechanical properties and the electrical properties of the cantilever, such as spring constant, resonant frequency, mechanical quality factor, piezoelectric output and the noise level, determine the resolution of a AFM when piezoelectric cantilever is used as the force sensor.

在作为原子力显微镜的力传感器使用时，压电探针的机械特性，如弹性常数、谐振频率、谐振质量因子，以及电子特性如压电输出、噪声水平等决定了原子力显微镜的分辨率，而对于带有针尖和三角形前端的PZT压电探针，这些特性迄今未得到系统研究。

The structure consists of at least two active regions emitting light with different main wave length, each of them has its own optical waveguide limit layer, two or multiple optical spectrum with different main wave length are mixed together to produce white light; cleavage cavity surface of both sides are plated reflecting film to form photon resonant chamber, light-emitting direction is all from side, this structure is suitable for LED with GaN or ZeSe base or other materials, the substrate is mode of sapphire, SiC or other materials.

本发明是一种直接出射白光的高亮度功率型LED芯片，其结构是：设有至少两个发射不同主波长光的有源区，每一个有源区具有各自的光波导限制层；两种或者多种主波长不同的光谱混合在一起产生白光；其两侧的解理腔面都镀有反射膜，形成光子谐振腔；光出射方向为全侧面出光，此种结构适合GaN基或ZeSe基的LED，或者其它材料的LED；其衬底是蓝宝石衬底，或SiC衬底，或者别的衬底材料。

The Vifa PL woofers were designed without compromise and feature a specially coated paper cone, Non Resonant Suspension Coupling system, long linear excursion, and a vented pole piece.

该威发特等woofers设计，没有妥协和功能一个专门涂布纸锥，非谐振暂停耦合系统的，长期的线性冲程和排气杆件。

This paper makes a three-dimensional model for QCM and analyzes directly the coupled phenomenon of the structural and electric fields of QCM with finite element analysis software ANSYS10.0. Through analyzing the convergence of the resonant frequency of QCM, the correctness of the finite element analysis is proved. The influence of different sizes of electrode on vibration of QCM and an optimal size of electrode is discovered, namely thickness of 100 nm and radius of 3 mm. The design of mesa on crystal plate is provided to solve the problem that the energy trapping is not good enough. This design proves valid based on finite element calculation and an optimal size of the mesa is given, namely height of 9.8 μm.

基于有限元分析软件ANSYS10.0对石英晶体微天平进行三维建模，验证了建模的正确性，并对不同电极结构尺寸进行仿真计算，对出现的耦合情况进行了分析，通过实验结果对比，提出较佳电极尺寸结构为厚度100 nm，半径3 mm；为解决金电极能陷效应不够理想的问题，提出在晶片上下表面筑平台的设计，有限元计算结果表明此设计能改善电极区的能陷效应，并且较佳平台高度为9.8μm。

Physical model of computer box is established and through analyzing the changing curves of change of electromagnetic field with time and change of coupling coefficient with frequency, the coupling regulation of electromagnetic on computer box is obtained. It is as follows: electromagnetic pulse has a great effect on components of computer box through apertures and slots, the coupling energy in the box increases first and then decreases. The existence of components decreases the shielding effectiveness and resonant frequency.

建立计算机机箱的物理模型，通过分析机箱内的电磁场随时间的变化曲线和耦合系数随频率的变化曲线，得到电磁脉冲对计算机机箱的耦合规律：电磁脉冲可以通过孔缝进入机箱内部，对机箱内元件的瞬间影响较大；机箱内的耦合能量是先增加后减小；元件的存在使得机箱的屏蔽效能降低，谐振频率下降。

Based on the analysis and investigations of dual-band microstrip annular ring slot antenna, a novel miniaturized dual-band annular ring slot antenna for WLAN applications is presented. It utilizes two rectangle notches to overcome the problem of resonant effects caused by the distance between inner and outer ring slots.

基于对微带双圆环缝隙天线的研究与分析，通过连接型矩形槽设计克服了内、外环距对谐振效果的影响，提出了一种应用于无线局域网通信的小型双频圆环缝隙天线，并且可以实现圆极化。

The proportion of the background component and resonant component in peak responses is been compared at different wind azimuths and different rigidity.

比较了在不同结构刚度下，各个风向角的峰值响应的共振部分与背景部分的比例。

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。