Yet, each year millions of Americans strive for that perfect tan and even spend their hard earned money to purposefully expose themselves to artificial sources of ultraviolet radiation.
A software package for fast computation of electromagnetic scattering and radiation characteristics of large complex perfect conducting object is introduced in this paper.
介绍了一种可用以快速计算任意形状的电大尺寸导体目标散射和辐射特性的软件包。
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Their ability to survive extremes of radiation, temperature and pressure, make them perfect space travelers and are the most convincing evidence yet of an extraterrestrial life form.