查询词典 harmonic

With the rapid development of electronic technology, a large amount of non-linear load has appeared in the power system, while absorbing the power of the principal wave , these non-linear load will produce a large number of harmonic wave and pour them into the power system.

随着电力电子技术的迅速发展，电力系统中出现了大量的非线性负荷，它们在吸收基波功率的同时，产生大量的谐波注入电力系统。

The extent of the harmonic response coming from the tissue is dependent on the MI settings (= mechanical index, which is correlated to the acoustic pressure).

来源于组织的谐波信号的强度由MI的设置决定（=机械指数，和声压相关）。

By analyzing, the fault transient component of third harmonic voltage at neutral is approximately equal to that at terminal. Choosing their sum and difference as the action and restrai nt signal respectively, the protection detects the ground fault by comparing the spectrum energy of action and restraint signals.

该保护方案根据单相接地故障后机端和中性点 3次谐波电压的故障暂态分量近似相同的特点，把两个故障分量的相量和与相量差分别作为保护动作信号及制动信号，通过比较数据窗内相应信号的谱能量检测定子单相接地故障。

In order to improve the harmonic suppression performance of APFs, a novel topology of Series Hybrid Active Power Filters where a series LC resonance circuit is added, is analyzed in this thesis.

本文首先简要介绍了有源电力滤波器的发展现状，主要从应用现状、有源电力滤波器主电路拓扑、谐波检测理论和控制策略的发展现状进行介绍。

We discussed the channel simulation method of wireless communications based on harmonic decomposition technique, explained why DFT could be applied in the simulation, and analyzed the additional error brought by the interpolation method.

四在分析的基础上，提出了一种基于谐波分解的信道仿真的快速方法，充分利用实际信道仿真应用中采样频率远远高于信道带宽的特点，对仿真算法实现加速。

This paper presents a simple method for measuring gas adiabatic constant by use of simple harmonic oscillation .

本文介绍了一种简单的利用简谐振动现象测量气体的定熵指数的方法。

The beneficial result that because this affects oneself,perhaps fears as a result of airline is harmonic praise, or because of its aerostat breakdown and complement without new transport power, also airline studies to weather judgement is not accurate, measure vacillation, hold to the time of incur loss through delay forbid, etc.

由于航空公司或者怕因此影响自己的效益和声誉，或者因其航空器故障而又无新的运力补充，也有航空公司对天气研究判定不准确，措施不果断，对延误的时间把握不准，等等。

Convex body; star body; Brunn-Minkowski inequality; dual harmonic quermassintegrals; dual affine quermassintegrals; dual mixed bodies; affine surface area; isotropic measure

基础科学，数学，几何、拓扑凸体；星体； Brunn-Minkowski不等式；对偶调和均质积分；对偶仿射均质积分；对偶混合体；仿射表面积；迷向测度

Pathological changes in biological tissues usually cause changes in their microstructure. Since the second harmonic generation signal is highly sensitive to the symmetry change of the microstructure , SHGI can be used for the early diagnosis of diseases and the monitoring of aftertreatment in clinics.

生物组织的病变往往会引起微观结构的变化，而二次谐波信号对组织的结构对称性变化高度敏感，因此二次谐波成像对于某些疾病的早期诊断或术后治疗监测，具有很好的生物医学应用前景。

The applications of inverter aggravate the harmonic pollution of power system.

变频器的大量应用，加重了电网的谐波污染。

According to our present broadcasting situation,the thesis proposes using new technology to update and reform the present HFC. It also suggests broadcasting using self-advantage and arranging EPON in order to win the supermarket.

论文从我国广电的现状出发，结合实际，积极倡导采用新技术更新、改造我国现有的HFC网络；倡导广电现阶段利用自身优势，部署EPON网络来赢取市场。

A new general kinetic equation was derived in which the effect of the removal of condensation water was taken into account completely, and was applied to the polyesterification kinetic study of AA/HPHP and AA/NPG. It was found that the reaction order of self-catalyzed polyesterification was not constant. For these polyesterifications, the reaction order was 2.5 at a low temperature, while 3.0 at a high temperature.

考虑缩合水的排除对反应体系的影响，用体积浓度单位推导出一个新的聚酯反应总包动力学方程，并应用到AA/HPHP和AA/NPG两个聚酯化反应的动力学研究中，研究发现，自催化聚酯反应的反应级数并不是固定值，对于AA/HPHP和AA/NPG两个聚酯化反应而言，低温时反应级数为2.5，高温时反应级数为3.0。