Spectroscopic properties of selected systems have been investigated by time dependent density functional theory (TD-DFT).
体系光谱计算采用时间依赖的密度泛函方法（TD-DFT）。
With regard to air viscosity, the law of time dependent displacement of elastic ball is studied in theory.
考虑到空气的粘性，理论计算了弹力球的运动位移随时间的变化规律。
The time evolution of atomic dipole squeezing in the intensity-dependent coupling interaction between squeezing vacuum state and V-type three-level atom is studied using the quantum theory.
利用全量子理论，研究了压缩真空场与V型三能级原子依赖强度耦合作用系统中原子的偶极压缩效应。
By making use of the invariant theory, the exact solution for a time-dependent system of double-well Bose-Einstein Condensate and corresponding geometric phase are obtained.
利用构造不变量理论，研究了一种含时双阱玻色-爱因斯坦凝聚系统的精确解，得到了相应的几何相因子。
For the model with time-dependent birth pulses, using the stroboscopic map, the theory on bifurcation and numerical analysis, the existence and stability of the positive equilibrium are obtained.
对具有密度依赖生育脉冲的模型，运用频闪映射，结合分支理论和数值分析，得到了正平衡态的存在性、稳定性；
The theory of time-dependent ability is adopted to evaluate the residual service life of structure and a method is adopted to revise the variable load.
利用时变安全可靠度理论，对现有结构的剩余寿命进行评估，提出了对可变荷载取值进行修正的方法。
The approach based on wavelet theory and phase space reconstruction for analyzing the law of time-dependent deformation of crack according to the observation data of dam is proposed.
本文基于小波分析理论和相空间重构技术，根据大坝裂缝的实测资料，提出了裂缝时变规律分析方法。
The instantunous change and heat-insulation approximation, and the condition of founding them, are dissused with time dependent perturbation theory in this paper.
本文由含时微扰理论出发，讨论了瞬变近似与绝热近似以及成立的条件。
With the time-dependent perturbation theory, the dynamics of a two-level system coupled to an Bose field is revisited.
从含时微扰论的角度出发，重新求解了与玻色场相耦合的两态系统的动力学。
In this paper, by using C0-semigroup theory the existence of a unique positive time-dependent solution of a bulk service queue with finite waiting space is proved.
应用有界线性算子半群理论证明一类成批服务系统的解的存在唯一性和非负性。
In this paper, by using C0-semigroup theory the existence of a unique positive time-dependent solution of a bulk service queue with finite waiting space is proved.
应用有界线性算子半群理论证明一类成批服务系统的解的存在唯一性和非负性。
应用推荐