IT was a major news item that put Baoji, a city in Shaanxi Province, well and truly on the map. On February 23, 2002, the Sakyamuni finger bone relic, kept in Baoji's Famen Temple, was sent to Taiwan for the first...IT was a major news item that put Baoji, a city in Shaanxi Province, well and truly on the map. On February 23, 2002, the Sakyamuni finger bone relic, kept in Baoji's Famen Temple, was sent to Taiwan for the first time so that Buddhists there might pay homage. In the four days the relic stayed in Taipei, over 300,000 Buddhists came to make obeisance. The relic has since been designated the ninth wonder of the world by UNESCO, making Baoji a focus of domestic and international attention.展开更多
By using a two-dimensional fully nonlinear compressible atmospheric dynamic numerical model, the propagation of a small amplitude gravity wave packet is simulated. A corresponding linear model is also developed for co...By using a two-dimensional fully nonlinear compressible atmospheric dynamic numerical model, the propagation of a small amplitude gravity wave packet is simulated. A corresponding linear model is also developed for comparison. In an isothermal atmosphere, the simulations show that the nonlinear effects impacting on the propagation of a small amplitude gravity wave are negligible. In the non-isothermal atmosphere, however, the nonlinear effects are remarkable. They act to slow markedly down the propaga-tion velocity of wave energy and therefore reduce the growth ratio of the wave amplitude with time. But the energy is still conserved. A proof of this is provided by the observations in the middle atmosphere.展开更多
文摘IT was a major news item that put Baoji, a city in Shaanxi Province, well and truly on the map. On February 23, 2002, the Sakyamuni finger bone relic, kept in Baoji's Famen Temple, was sent to Taiwan for the first time so that Buddhists there might pay homage. In the four days the relic stayed in Taipei, over 300,000 Buddhists came to make obeisance. The relic has since been designated the ninth wonder of the world by UNESCO, making Baoji a focus of domestic and international attention.
基金supported by the National Natural Science Foundation of China(Grant Nos.403040l0 and 40336054)the Cultivation Fund of the Key Scientific and Technical Innovation Project,Ministry of Education of China.
文摘By using a two-dimensional fully nonlinear compressible atmospheric dynamic numerical model, the propagation of a small amplitude gravity wave packet is simulated. A corresponding linear model is also developed for comparison. In an isothermal atmosphere, the simulations show that the nonlinear effects impacting on the propagation of a small amplitude gravity wave are negligible. In the non-isothermal atmosphere, however, the nonlinear effects are remarkable. They act to slow markedly down the propaga-tion velocity of wave energy and therefore reduce the growth ratio of the wave amplitude with time. But the energy is still conserved. A proof of this is provided by the observations in the middle atmosphere.
