منابع مشابه
evaluation of ultra violet emissions radiated from compact fluorescent lamps of iranian current brands
background compact fluorescent lamp (cfl) is a developed fluorescent lamp type designed to saving energy. cfls can cause an increased health risk to humans due to the ultraviolet radiation. objectives the current study aimed to assess the ultraviolet radiation emitted from compact fluorescent lamps in highly used iranian brands. materials and methods this experimental study was conducted on 16 ...
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We treat the action for a bosonic membrane as a sigma model, and then compute quantum corrections by integrating out higher membrane modes. As in string theory, where the equations of motion of Einstein’s theory emerges by setting β = 0, we find that, with certain assumptions, we can recover the equations of motion for the background fields, i.e. Rμν +(1/4)FμαβγμF αβγ ν = 0 and DFαβγ = 0. for t...
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ژورنال
عنوان ژورنال: JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN
سال: 1931
ISSN: 0019-2341,1349-838X,2185-1506
DOI: 10.2150/jieij1917.15.7_a77