نتایج جستجو برای: ultraviolet b

تعداد نتایج: 933118  

2015
Ka-Ming Wai Peter K. N. Yu Ka-Se Lam Andrzej T Slominski

Solar UV radiation has both adverse and beneficial effects to human health. Using models (a radiative transfer model coupled to a building shading model), together with satellite and surface measurements, we studied the un-obstructed and obstructed UV environments in a sub-tropical urban environment featured with relatively high pollution (aerosol) loadings and high-rise buildings. Seasonal pat...

Journal: :Acta dermato-venereologica 2006
Tomonori Takekoshi Akihiko Asahina Mayumi Komine Kunihiko Tamaki

A. Alemi M. Behzad, M. Dolatyari Sh. Khademinia

Sr5Nb4O15 – Nb2O5 nanocomposites were synthesized in 2 and 4 M KOH aqueous solutions, via a non-stoichiometric 1:2 Sr:Nb molar ratio hydrothermal method at 160°C for 48 h (S1 and S2, respectively). Sr(NO3)2 and Nb2O5 were used as raw materials. The synthesized nanomaterials were characterized by powder X-Ray diffraction (PXRD) technique. It was found that Sr5Nb4O15 has been crystallized in hexa...

Journal: :Journal of the Formosan Medical Association 2007

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