Intangible cultural heritage is the continuous progress of human society. refers to various traditional expressions that exist in intangible form and are closely related lives people inherited from generation generation. a human-oriented living heritage. It emphasizes human-centric skills, experience, spirit, characterized by changes. What stands out attribute, more emphasis on quality does not...

We present an empirical model for the electron energy relaxation time. It is based on Monte-Carlo simulation results, and is applicable to all relevant diamond and zinc-blende structure semiconductors. The energy relaxation times are expressed as a function of the carrier and lattice temperatures and, in the case of semiconductor alloys, the material composition. keywords: energy relaxation tim...

Although InP/GaAs0.51Sb0.49/InP DHBT has recently attracted much interest, some sensitive material parameters are still uncertain. We detailed the simulation methodology used to evaluate bandgap energy, minority carrier lifetime and band gap narrowing effect. Moreover, the high-injection effect is analysed as resulting from electron parasitic barrier formation at base-collector junction.

We present an empirical model for the electron energy relaxation time. It is based on Monte-Carlo simulation results and is applicable to all relevant diamond and zinc-blende structure semiconductors. The energy relaxation times are expressed as functions of the carrier and lattice temperatures, and in the case of semiconductor alloys, of the material composition. # 1999 Elsevier Science Ltd. A...