根据海浪波能谱，计算了舰船摇荡运动的功率谱密度和舰船的随机摇荡运动。
The power spectral density of ship's motion is calculated based on ocean wave energy spectrum and the movement spectrums of the ship's random motion are calculated and created.
结果表明，-U中心的存在使激发谱“能隙”内出现很小值的态密度。
Results show that a small density of states due to the -U centers exists in the region of "energy gap".
因此采用能反映时频非平稳特性的时变谱密度(即局部谱密度)来描述地震地面运动是非常必要的。
Consequently, it is necessary to describe earthquake ground motion with local spectral density, which is time-dependent and can reflect the non-stationary characteristics.
利用康普顿散射光子能谱可以重建物质的电子密度图像。
Compton scattering can be utilized for electron density imaging.
根据海浪波能谱，计算了舰船摇荡运动的功率谱密度和舰船的随机摇荡运动。
The power spectral density of ship's motion is calculated based on ocean wave energy spectrum, and the movement spectrums of the ship's random motion are calculated and created.
激光功率密度达相对论强度以上时，靶后表面法线方向快电子能谱拟合平均温度高于已有的温度定标率。
The temperature of hot electrons is much higher than that expected by the empirical scaling law as the laser intensity reaches the relativistic.
对均匀各向同性湍流提出一个能谱密度的计算公式。
Formulae of energy spectrum density of large wavenumber range in homogeneous isotropic turbulence are given here.
对均匀各向同性湍流提出一个能谱密度的计算公式。
Formulae of energy spectrum density of large wavenumber range in homogeneous isotropic turbulence are given here.
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