The paper investigates the time evolution of a Gaussian wave packet in a tight-bindingring model with uniform nearest-neighbor hopping integral.
探讨了一维均匀紧束缚环模型中高斯波包的时间演化规律。
2
The ring binder and the post binder are examples of loose leaf binding.
例如铁环活页夹或螺柱活页夹都是活页装的一种。
3
Coal tar processing is one of the most important areas of coal chemical technology and a main intermediate ringbinding coal mining, metallurgy and chemical industry.