منابع مشابه
A NEW COMPOUND IN THE TERNARY SYSTEM, Li2O-TiO2-Nb2O5
A new compound was confirmed to be formed at around the composition Li:Ti:Nb=19:10:12 in the system Li 0-Ti0 -Nb O5 by reaction at 1100 OC for 2 120 hrs in air betaeen tf2~63, Ti0 and Nb205. This compound was also produced by reactlon of L~N~o,.o.~T~o, with Li2Ti0 . Single crystals of the compound were grown uslng a Li2Mo04 8y flux method. The crystals were shown to possess a hexagonal symmetry...
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تحقیق حاضر متون خبری روزنامه های نیویورک تایمز و تهران تایمز را به صورت تحلیل انتقادی کلامی مورد بررسی قرارمی دهدکه درمورد جنگ به رهبری آ مریکا در افغانستان است. هدف از این تحقیق نشان دادن تاثیر ایدیولوژی و نگرشهای نویسندگان متون خبری است که ممکن است پنهان باشد. برای انجام این تحقیق 20 متن خبری) از هر روزنامه 10 متن خبری) به صورت تصادفی از سایت اینترنتی روزنامه های نیویورک تایمز و تهران تایمز ا...
15 صفحه اولa fundamental study of "histiriographic metafiction", and "literary genres", as introduced in "new historical philosophy", and tracing them in the works of julian barnes.
abstract a fundamental study of “historio-graphic metafiction” and “literary genres”, as introduced in “new historical philosophy”, and tracing them in the works of julian barnes having studied the two novels, the porcupine and arthur & george, by julian barnes, the researcher has applied linda hutcheon’s historio-graphic metafictional theories to them. the thesis is divided into five cha...
15 صفحه اولa study on construction of iranian life tables: the case study of modified brass logit system
چکیده ندارد.
15 صفحه اولCatalytic Effect of Nb2O5 in MgH2-Nb2O5 Ball-Milled Composites
We report a study on the desorption properties, crystallography and chemical state of MgH2 and 1 mol% Nb2O5 ball-milled composites. Desorption temperatures of the composites decreased with increase of ball-milling time. Size of MgH2 crystallites decreased during ball-milling. Reduction of Nb2O5 after ball-milling was confirmed by tracing the chemical state of Nb and was further supported by TEM...
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ژورنال
عنوان ژورنال: Acta Chemica Scandinavica
سال: 1966
ISSN: 0904-213X
DOI: 10.3891/acta.chem.scand.20-0580