查询词典 waveform audio

The capacitance capacitors and inductors of power grid form parallel resonance circuit .It's frequency may be related to the existing power grid close to the harmonic frequencies, If there is power grid harmonic current sources, harmonic resonance caused by enlarged so that the voltage and current waveform distortion even more serious.

电容器的电容和电网的电感形成并联谐振回路，其频率可能与电网中存在的谐波频率接近，如果电网存在谐波电流源，谐振引起的谐波放大使电压和电流波形畸变更为严重。

Based on this double-loop control scheme, very high quality steady-state grid current waveform and fast dynamic response can be obtained.

基于LCL滤波器的双环控制方案赋予了系统较高的稳态补偿精度和快速的动态响应。

The left ulna of adult female rats were subjected to applied loading at frequencies of 5 Hz, 10 Hz, 15 Hz for 10 min/d with a haversine, low-magnitude （ 1 mm peak to peak） waveform for a two weeks period, the peak strains at the Left ulnar midshaft is 2000με and 3000 με, the right ulna of each rat served as a paired internal control.

将60只大鼠随机分成4大组，正常组，5、10、15Hz组，各实验组分为2000斗8组和3000μ8组；加载振幅为0.1mm、半正弦波，10min／d，加载2周，右上肢作为对照组。

The waveform, intensity and speed of pulse signals mostly read the physical and pathological characters of heart-blood system in human bodies.

脉搏波所呈现出的形态、强度、速率和节律等方面的综合信息，能反映出人体心血管系统中许多生理病理的血流特征。

In this dissertation, we optimized the thinkness of each layer of TFEL devices using the layered optimization method to obtain ZnS: Ce〓 TFEL devices. Accoding to the energy level structure of Ce〓, two criteria for distinguishing the EL of Ce〓 were found out, from which it was conduded that the TFEL of ZnS: Ce〓 comes from 5d→4f transition of Ce〓. The measurement of brightness waveform showed that the TFEL of ZnS: Ce〓 was the luminescence from independent centers. and there were the field induced-delocalization in this process anf it〓s the cause of low TFEL efficiency of ZnS: Ce〓. In this dissertation, different influence factors on TFEL of ZnS: Ce〓 were sdudied. The influence of different host lattice is different: The blue/green ratio of ZnS: Ce〓 in hexagonal system of ZnS is larger than that in cubic system of ZnS, and the TFEL peaks in hexagonal system of ZnS moves toward longer wavelength compared with that in cubic system of ZnS. The adding buffer layer was used in this stage. The solubility of Ce〓 in ZnS was small and it was another limit to TFEL brightness of ZnS: Ce〓 device. The solubility of Ce〓 increased ten times when using Li ions as flux, so that the TFEL brightness of ZnS: Ce〓 was enhanced. It was found that the appearing of ZnO in active layer improves the TFEL of ZnS: Ce〓: the brightness and the wave range of ZnS: Ce〓TFEL were enhanced.

本文采用TFEL的分层优化方案，优化组合了各膜层厚度，选择最佳制备条件，得到了ZnS：Ce〓的TFEL；根据Ce〓的能级结构，找到了判别Ce〓的EL的两个简单依据，并据此断定ZnS：Ce〓的TFEL的两个发射峰分别属于Ce〓的〓和〓跃迁；亮度波形测量表明ZnS：Ce〓的TFEL属于分立中心发光，分析认为在此过程中存在着较严重的场致离化，这也是ZnS：Ce〓的TFEL效率较低的一个原因；本文考查了影响ZnS：Ce〓的TFEL的各种因素，发现：基质的晶体结构对ZnS：Ce〓的TFEL有所影响，在六角相ZnS中Ce〓的TFEL优于立方相ZnS中Ce〓的TFEL：发射峰的蓝-绿比相对较大，且光谱向短波方向移动，在此项研究中本文采用了在发光层前增镀过渡层的办法，过渡层为六角晶相的ZnO；限制ZnS：Ce〓的TFEL器件亮度的一个原因是Ce〓在ZnS中的溶解度低，本文用Li离子作助溶剂增大了Ce〓的溶解度，增大幅度为一个量级，并且ZnS：Ce〓的TFEL亮度明显提高；从ZnS：Ce〓的TFEL光谱来看ZnS：Ce〓的TFEL波长覆盖范围较小，亮度也不高，达不到做为白色TFEL材料的要求，需要寻找新的白色TFEL材料；在研究ZnS：Ce〓的TFEL中还发现：发光层中ZnO的出现有利于ZnS：Ce〓的TFEL：发射峰变宽、亮度增大。

The erosion of even-distributed type rainfall results in waveform hydrograph of sediment flow with low concentration and increases with the area of watershed.

均匀型降雨侵蚀下，径流含沙量时间曲线表现为低含沙量的波浪起伏形，并且，随流域面积的增加，次降雨平均含沙量增加

For each impulse response waveform, FFT is applied in order to get their frequency characteristics.

最后对此平均频率特性实施IFFT以获取系统的脉冲响应。

While waveform criterion is presented based on the duration time of inceptive travelling wave.

而根据初始行波波头持续时间的长短可以构成波形判据。

The voltage induced in the pickup coil by this waveform is directly proportional to the rate of change of magnetic induction.

这种波形在拾波线圈中产生的电磁感应与磁感应变化率是成比例的。

Which can be used for direct observation of the input signal voltage waveform.

它可以用于直接观察输入信号的电压波形。

The receding calculations and experiment analyses in this subject are built on the blood cast of pig tongue.

本研究课题的前期工作是采用猪舌血管铸型模拟人舌而进行的数值计算与实验分析。

"Each human infection constitutes an opportunity for genetic modification of the virus through reassortment, mutation, or both...."

&每一次人类的感染都暗藏着一次基因修改的机会，无论是通过病毒的整合、突变或者兼而有之。。。。&