本文应用基于密度泛函理论的第一性原理赝势法，较系统地研究了铜体相和表面相，以及锂离子在铜薄膜中的扩散行为。
Based on the density functional theory, the first principles calculation was performed to investigate the bulk, surface copper and the diffusion in the copper thin film.
通过对单模激光混沌系统增加一个周期扰动，构造一种具有外部周期扰动的新动力学系统，基于数值法研究了系统的混沌态在周期扰动下的动力学行为。
Based on single mode laser system, a new dynamical system under external periodic perturbation modulation is constructed and investigated by using of the numerical analysis method.
本文提出了基于有限元位移法，有限元法分析平面弹性材料的力学行为。
Based on the finite element displacement method, a finite element method on the analysis of mechanical behaviour of plane elastic materials is proposed in this paper.
当用户行为偏离特征模型时，利用基于最小风险的贝叶斯判别法，可以实时有效的判断出用户的身份。
When the deviation from the model is found, the system can determine the identity of the user.
当用户行为偏离特征模型时，利用基于最小风险的贝叶斯判别法，可以实时有效的判断出用户的身份。
When the deviation from the model is found, the system can determine the identity of the user.
应用推荐