Selective Determination for Calf Thymus DNA by a Resonance Light Scattering Technique with Morin-Ce(ⅳ) System 桑色素-Ce(Ⅳ)体系共振光散射法选择性测定小牛胸腺DNA
The selective principle of ultrasonic motor's vibration mode and the form of resonance mode are introduced in this paper. 本文介绍了超声波电机振动模态形式及其选择的原则。
Frequency Selective Effect of a Gaussian Resonance System to Gravitational Waves 高斯束谐振系统对引力波频率的选择效应
With average-field approximation, analytical solutions of Bloch equations of two-photon off-resonance have been obtained. The analytical expression of isotope coherent selective excitation coefficient has been deduced. Theoretical calculations show that the coherent excitation of two-photon resonance has a very high isotopic selectivity. 采用平均场近似,求出了双光子离共振布洛赫方程组的解析解,导出了同位素相干选择激发系数的解析表达式,理论计算证明双光子共振相干激发具有很高的同位素选择性。