forked from lijiext/lammps
26 lines
1.4 KiB
TeX
26 lines
1.4 KiB
TeX
\documentclass[12pt]{article}
|
|
|
|
\begin{document}
|
|
|
|
\begin{eqnarray*}
|
|
\left\{\begin{array}{l}
|
|
\eta_{ij}=\delta_{ij},\xi_{IJ}=1 \\
|
|
U_{IJ}\left(r\right)=\left\{\begin{array}{lr}
|
|
A_{IJ}\cdot exp\left(-\lambda_{1,IJ}\cdot r\right)\cdot f_{c,IJ}\left(r\right), & r\leq r_{s,1,IJ} \\
|
|
A_{IJ}\cdot exp\left(-\lambda_{1,IJ}\cdot r\right)\cdot f_{c,IJ}\left(r\right)\cdot f_{c,1,IJ}\left(r\right), & r_{s,1,IJ}<r<r_{c,1,IJ} \\
|
|
0, & r\ge r_{c,1,IJ}
|
|
\end{array}\right. \\
|
|
V_{IJ}\left(r\right)=\left\{\begin{array}{lr}
|
|
B_{IJ} \cdot exp\left(-\lambda_{2,IJ}\cdot r\right)\cdot f_{c,IJ}\left(r\right), & r\le r_{s,1,IJ} \\
|
|
B_{IJ} \cdot exp\left(-\lambda_{2,IJ}\cdot r\right)\cdot f_{c,IJ}\left(r\right)+A_{IJ}\cdot exp\left(-\lambda_{1,IJ}\cdot r\right)\cdot & \\ ~~~~~~ f_{c,IJ}\left(r\right)\cdot \left[1-f_{c,1,IJ}\left(r\right)\right], & r_{s,1,IJ}<r<r_{c,1,IJ} \\
|
|
B_{IJ} \cdot exp\left(-\lambda_{2,IJ}\cdot r\right)\cdot f_{c,IJ}\left(r\right)+A_{IJ}\cdot exp\left(-\lambda_{1,IJ}\cdot r\right)\cdot & \\ ~~~~~~ f_{c,IJ}\left(r\right) & r \ge r_{c,1,IJ}
|
|
\end{array}\right. \\
|
|
F_{IJ}\left(X\right)=\left[1+\left(\beta_{IJ}\cdot X\right)^{n_{IJ}}\right]^{-\frac{1}{2n_{IJ}}} \\
|
|
P_{IJ}\left(\Delta r\right)=exp\left(\lambda_{3,IK}\cdot \Delta r^3\right) \\
|
|
W_{IJ}\left(r\right)=f_{c,IK}\left(r\right) \\
|
|
G_{JIK}\left(\theta\right)=1+\frac{c_{IK}^2}{d_{IK}^2}-\frac{c_{IK}^2}{d_{IK}^2+\left(h_{IK}+cos\theta\right)^2}
|
|
\end{array}\right.
|
|
\end{eqnarray*}
|
|
|
|
\end{document}
|