Chapter three introduces the nonequilibrium Green function method and its applications in mesoscopic transport, and the widely-employed Keldysh equation of motion with a current formula are induced.
第三章介绍了非平衡格林函数方法及其在介观输运中的应用，推导了广泛应用的运动方程以及电流公式。
2
Electroluminescence (el) has been widely used as a tool to study the trap character, the charge storage and transport, the structure transformation and molecular motion in insulating polymers.
Since the disturbance expansion has been taken into account, one has to solve the mass, vorticity transport and energy transport equations for disturbance motion in a coupled way.