1) band-gap energy
频带隙能量
2) energy band gap
能量带隙
1.
The effects of content of Nb2O5 on refractive index,stability,optical band gap and energy band gap of the glasses are discussed.
利用样品的吸收光谱计算了其直接允许跃迁、间接允许跃迁及能量带隙。
3) band-gap energy
带隙能量
4) Frequency band energy
频带能量
1.
In this paper,according to the characteristics of spacial grid structures,a method of damage diagnosis is presented by the dynamic response under fast sine sweep motivation based on the analysis of frequency band energy of wavelet packet decomposition and fuzzy cluster method(FCM).
本文针对网格结构的特点,利用其在快速正弦扫频激励下的动力响应,基于小波包分解频带能量分析和模糊聚类法,提出了一种适合于网格结构的损伤诊断方法。
2.
It is pointed out that there is a boundary problem for most frequency band boundary frequencies: the frequency band energy leaps at the left and right sides of the boundary frequencies,and the leap directions are reverse.
在边界频率左、右两侧,频带能量有巨变现象,并且能量的跳变方向相反。
3.
A fault diagnosis method based on wavelet packet analysis frequency band energy was proposed this paper .
文章介绍了鼠笼式异步电动机常见的故障及其诊断的重要性,采用了改进型小波包算法从电气和机械方面提取信号的故障特征,并提出了一种基于小波包分析频带能量的故障诊断方法。
5) band power
频带能量
1.
Objective To explore the effect of band power and wavelet packet entropy in the recognition of hand imagery.
目的探讨脑电信号频带能量和小波包熵在识别左右手想象运动中的作用。
2.
A method for single trial on-line classification of imaginary hand movements,based on band power and phase synchronization derived from EEG,is proposed.
提出了基于信号频带能量和相同步作为脑电特征向量,实现对左右手运动意识任务的分类方法。
6) frequency-band energy
频带能量
1.
The gear corrosive pitting recognition based on wavelet packet analysis and frequency-band energy decomposition;
基于小波包分析和频带能量分解的齿轮点蚀故障识别
2.
In order to avoid above disadvantages of wavelet ridge, a new diagnostic method based on wavelet frequency-band energy is proposed in this paper.
为克服小波脊线在诊断异步电机断条故障过程中存在的数学定义复杂、迭代逼近运算量大等缺点,应用Morlet连续复值小波,多尺度地、中心频率等间隔地分解了实测的同型正常电机和有一根断条的故障电机启动电流信号,分析和比较了对应尺度下的频带能量后,找出了上述电机两种状态的信号能量差异;定义了频带能量比(RFBE)的概念,得出断条故障电机的RFBE比良好状态的至少大2倍的定量判据,并据此提出了基于RFBE的电机断条故障诊断新方法。
补充资料：无隙
1.没有隔阂。
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参考词条