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1)  Energy spectrum
能量谱
1.
Identify the Defect of Bearing Vibration and Noise with Wavelet Packet Energy Spectrum;
基于小波能量谱的轴承振动噪声缺陷辨识方法
2.
A new energy spectrum description method of electrochemical noise(EN)signals was described by wavelet packets decomposition.
本文建立了EN信号的小波包分解能量谱分析方法 ,结果表明该方法可准确地表征EN信号的高频“指纹”特征 ,对腐蚀体系、腐蚀类型及腐蚀状态有较强的分辨能力。
3.
Based on the analysis of energy feature of vibration signal, a signal feature representation method based on the energy spectrum of wavelet packets is proposed, which represent the signal feature through computing the energy of the wavelet packets decomposition, and this method is effective in compressing the vibration signal to be a vector.
在分析信号的能量特征的基础上,提出一种基于小波包能量谱的信号特征表示方法:将信号特征表示为对分解结点的能量谱,有效压缩设备的状态信息。
2)  spectral energy
谱能量
1.
In this criterion the comprehensive effect of transient components of zero-sequence voltage and the third harmonic voltage is considered,and the ratio of spectral energy of restraint signal to that of operation signal is taken as restraint coefficient.
该判据考虑了零序基波电压及3次谐波电压故障分量的综合效应,并以制动信号谱能量和动作信号谱能量的比值作为制动系数,该值在发电机正常运行时接近为1,在发电机定子绕组单相接地时远小于1。
3)  peak energy amounts
谱峰能量
1.
The peak energy amounts of the different frequencies of the loosing signals of turbine are utilized as training samples to input the LVQ network,and then the network outputs the scale vectors after training.
把汽轮机轴承座松动的相关频段上不同频率谱的谱峰能量值作为故障信号的训练样本输入到LVQ网络中去,并由LVQ网络产生训练后不同的权重向量。
4)  spectrum-entropy
能量谱-熵
5)  Quantum energy spectrum
量子能谱
1.
The persistent current and the quantum energy spectrum in mesoscopic metal dual rings;
介观金属双环系统中的持续电流和量子能谱
2.
Quantum Kirchhoff s equation of the system is given by Heisenberg s moving equation,and the characters of quantum energy spectrum are analyzed and investigated by solving the eigenvalue equation of Hamilton operator.
运用Heisenberg运动方程给出体系的量子kirchhoff方程;通过求解体系Hamilton算符的本征值方程分析和研究体系的量子能谱性质。
3.
For the mesoscopic metal ring system in external magnetic field,supposing the system has a symmetry under translation in charge space,the quantum current and the quantum energy spectrum in mesoscopic metal ring are given by solving thire eigenvalue equations;and the quantum fluctuations of the current and the energy have been calculated by the character of the minimum shift operator.
研究介观金属环中量子电流、量子能谱的性质,分析影响量子涨落的因素。
6)  spectra energy
谱项能量
补充资料:电子能量损失谱
分子式:
CAS号:

性质:通过测量非弹性散射的电子的能谱来研究固体表面的振动模式、电子的带间跃迁以及表面等离子体振荡等多方面信息的技术。该能谱用约50~200eV的电子作用于样品,入射电子与表面内的各种元激发(如声子、激子等各类准粒子)相互作用而引起能量损失,这种能量损失携带了各类元激发的有关信息,由此可研究固体表面的结构。

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