Electromagnetic theory is essentially a study of some particular field. We define a field as a function which specifies a particular quantity everywhere in a region. If the quantity is a scalar (or vector), the field is said to be scalar (or vector

Eu/Tb codoped aluminoborosilicate glasses were fabricated by high temperature melting-quenched technique and their luminescence properties were investigated by excitation and emission spectra. Under 376 nm excitation, blue, green and red emission

麻省理工大学的环流模式MIT general circulation model(MITgcm)-The MITgcm (MIT General Circulation Model) is a numerical model designed for study of the atmosphere, ocean, and climate. Its non-hydrostatic formulation enables it to simulate fluid phenomena over a w