نتایج جستجو برای: 250 to 500
تعداد نتایج: 10637116 فیلتر نتایج به سال:
Aims. The Herschel-ATLAS survey (H-ATLAS) will be the largest area survey to be undertaken by the Herschel Space Observatory. It will cover 550 sq. deg. of extragalactic sky at wavelengths of 100, 160, 250, 350 and 500 μm when completed, reaching flux limits (5σ) from 32 to 145 mJy. We here present galaxy number counts obtained for SPIRE observations of the first ∼14 sq. deg. observed at 250, 3...
In 1953, the International Commission on Radiological Units recommended [1] the continued use of the roentgen up to 3 Mev for the measurement of Xand gamma-ray dose. The physical requirements of standard ionization chambers for measuring roentgens in the X-ray region up to 250 lev have already been reported [2,3,4]. The calibration of secondary instruments in at least two laboratories also seem...
Salmonellosis is a poultry industry and public health concern worldwide. Recently, Salmonella enterica serovar Heidelberg (SH) has been reported in broilers in Brazil. The effect of feeding a blend of three strains of Bacillus subtilis (PRO) was studied in broilers orally challenged (107 CFU/chick) or not with a SH isolated in south of Brazil (UFPR1 strain). Twelve male Cobb 500 broilers per pe...
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