نتایج جستجو برای: 300 w
تعداد نتایج: 281786 فیلتر نتایج به سال:
944. Preparative and structural studies on sulfur-linked carborane icosahedra: 2-phenyl-ortho-carboranylsulfur systems (2-Ph-1, 2-C2B10H10)2X (X = S, S2 or SO), and ortho-carboran-di-yl systems (1, 2-C2H10H10Y)2 (Y = S or SO) A. S. Batsanov, W. Clegg, R. C. B. Copley, M. A. Fox, W. R. Gill, R. S. Grimditch, T. G. Hibbert, J. A. K. Howard, J. A. H. MacBride and K. Wade. Polyhedron 2006, 25, 300–...
An investigation of MOS transistor mismatch is undertaken and a methodology is developed for optimizing mismatch without increasing layout area. Dramatic improvements of up to 300% in matching can be realized by selecting the optimum W=L ratio without changing the overall WL area product. The theoretical basis for the obtainable improvements is fully described and an expression is derived and v...
We reexamine the mass mixing and CP violation in the B ¯ B system in general SU(2) L × SU(2) R × U(1) models related to the recent measurements. The right-handed contributions can be sizable in B ¯ B mixing and CP asymmetry in B decays for a heavy W ′ even with a mass about 3 TeV. On the other hand the lower bound on the mass of W ′ can be taken down to approximately 300 GeV.
A wideband H-band detector operating near 300 GHz has been developed based on SiGe HBT technology. The detector consists of an on-chip antenna and a HBT differential pair for square-law detection. It showed responsivity of more than 1,700 V/W and noise equivalent power (NEP) smaller than 180 pW/Hz0.5 for the measured frequency range of 250–350 GHz. The maximum responsivity and the minimum NEP w...
Computer Vision has recently witnessed great research advance towards automatic facial points detection. Numerous methodologies have been proposed during the last few years that achieve accurate and efficient performance. However, fair comparison between thesemethodologies is infeasiblemainly due to two issues. (a) Most existing databases, captured under both constrained and unconstrained (in-t...
We report on the out-of-plane thermal conductivities of epitaxial Fe3O4 thin films with thicknesses of 100, 300, and 400 nm, prepared using pulsed laser deposition (PLD) on SiO2/Si substrates. The four-point probe three-omega (3-ω) method was used for thermal conductivity measurements of the Fe3O4 thin films in the temperature range of 20 to 300 K. By measuring the temperature-dependent thermal...
root ofplumbago indica linn is used in ayurveda and siddha medicine for the treatment of colic inflammations bronchitis, helminthiasis, hemorrhoids, elephantiasis, hepatosplenomegaly, amenorrhea, odontalgia, piles, and diabetes. the present study aims to investigate the anatomical characters of thin and thick root and to confirm the physicochemical characters of the root. anatomical studies and...
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