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- 接着推导出在多用户环境下基于标准高斯近似(Standard Gaussian Approximation，SGA)假设的各种IR-UWB系统的误码率和MUI特征。Third, based on the hypothesis of Standard Gaussian Approximation (SGA) in the environment of multi-users, this paper derives the bit error rate (BER) expressions.
- 结合一阶平均球近似(First-order mean-spherical approximation,FMSA)与重整化群(Renormalization group,RG)变换计算了流体全局性相行为.The First-order mean-spherical approximation (FMSA) was combined with renormalization group (RG) transformation and applied to global phase behavior calculation.
- DORA(double order approximation)方法是近年提出的求解动力学方程的一种算法,对于圣维南方程采用DORA算法时,方程被分解成两步来解,每一步均求解一个简单的微分方程组.The DORA(double order approximation) approach is used for solving dynamic equations in recent years. Under the DORA approach,the Saint-Venant equations are divided into two simple differential equations sequentially;
- 运用广义梯度密度泛函理论(Generalized Gradient Approximation,GGA)的PBE(Perdew-Burke-Ernzerh)方法结合周期性平板模型,研究了氯气分子和氯原子在CuCl(111)表面上的吸附。The adsorption of Cl_2 molecule on CuCl(111) surface has been studied with periodic slab model by Perdew-Burke-Ernzerh (PBE) approach of the generalized gradient approximation (GGA) within the framework of density functional theory (DFT).
- 应用二阶微扰理论, Duh-Mier-Y-Teran 状态方程和在平均球近似(mean spherical approximation, MSA)的基础上获得的直接相关函数, 建立了适用于均匀流体和非均匀流体的状态方程.An equation of state (EOS) applicable to both the uniform and non-uniform fluid was established using the second-order perturbation theory, the Duh-Mier-Y-Teran EOS and the direct correlation function obtained by mean spherical approximation (MSA).
