منابع مشابه
formation and evolution of regional organizations: the case study of the economic cooperation organization (eco)
abstract because of the many geopolitical, geo economical and geo strategically potentials and communicational capabilities of eco region, members can expand the convergence and the integration in base of this organization that have important impact on members development and expanding peace in international and regional level. based on quality analyzing of library findings and experts interv...
15 صفحه اولStrangelets in Terrestrial Atmosphere
A new dynamical model for the propagation of strangelets through the terrestrial atmosphere is proposed. Strangelets are small lumps of strange quark matter (SQM) which consist of roughly equal numbers of up, down and strange quarks. Since the suggestion of Witten[1]in 1984 that these strangelets, and not ordinary nuclear matter, represent the true ground state of QCD, this area of research has...
متن کاملSolar forcing of the terrestrial atmosphere
The Sun provides the main energy input to the terrestrial atmosphere, and yet the impact of solar variability on long-term changes remains a controversial issue. Direct radiative forcing is the most studied mechanism. Other much weaker mechanisms, however, can have a significant leverage, but the underlying physics is often poorly known. We review the main mechanisms by which solar variability ...
متن کاملRayleigh-scattering calculations for the terrestrial atmosphere.
Rayleigh-scattering cross sections and volume-scattering coefficients are computed for standard air; they incorporate the variation of the depolarization factor with wavelength. Rayleigh optical depths are then calculated for the 1962 U.S. Standard Atmosphere and for five supplementary models. Analytic formulas are derived for each of the parameters listed. The new optical depths can be 1.3% lo...
متن کاملEvolution of terrestrial proto -CO 2 atmosphere coupled with thermal history of the earth
The effect of volatde exchange between surface reservoirs and the mantle on the evolution of proto-CO 2 atmosphere on the Earth is investigated using a global carbon cycle model coupled with thermal evolution of the mantle. Carbon is assumed to circulate among five reservoirs (atmosphere, ocean, continents, seafloor and mantle) and the carbon flux of each reservoir is calculated under varying c...
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ژورنال
عنوان ژورنال: Journal of Geography (Chigaku Zasshi)
سال: 1993
ISSN: 0022-135X,1884-0884
DOI: 10.5026/jgeography.102.6_633