490 research outputs found

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    We find an interconnexion between two classes of functions being integrable with a weight and satisfying conditions of Lipschitz type in the integral metric, in certain cases.Установлено взаємозв'язок двох класів інтегровних з вагою функцій, що задовольняють умови типу умови Ліпшица в інтегральній метриці, у певних випадках.

    Diode Based on Amorphous SiC

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    Diode structure on the basis of amorphous silicon carbide and p-type polycrystalline silicon (Eurosolar) were obtained with magnetron RF-nonreactive sputtering method from solid-phase target in argon atmosphere. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3365

    RF Magnetron Sputtering of Silicon Carbide and Silicon Nitride Films for Solar Cells

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    RF-magnetron nonreactive sputtering method from solid-phase target in argon atmosphere was used for obtaining thin silicon carbide and silicon nitride films, that are used for constructing solar cells based on substrates of single crystal silicon of p-type. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3638

    Temperature Influence on the Properties of Thin Si3N4 Films

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    Applying Raman spectroscopy, small-angle x-ray scattering, and atomic force microscopy it were studied phase composition and surface morphology of nanoscale films Si3N4 (obtained by RF magnetron sputtering)

    Effects of exposure of rat erythrocytes to a hypogeomagnetic field

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    The file attached to this record is the author's final peer reviewed version. The Publisher's final version can be found by following the DOI link.Background:Hypomagnetic fields can disrupts the normal functioning of living organisms by a mechanism thought to involve oxidative stress. In erythrocytes, oxidative stress can inter alia lead to changes to hemoglobin content and to hemolysis. Objective:To study the effects of hypomagnetism on the state of rat erythrocytes in vitro. Methods:Rat erythrocytes were exposed to an attenuated magnetic field (AMF) or Earth’s magnetic field (EMF), in the presence of tert-butyl hydroperoxide (TBHP) as inducer of oxidative stress. Determinations: total hemoglobin (and its three forms – oxyhemoglobin, methemoglobin, and hemichrome) released from erythrocytes, spectral data (500–700 nm); oxygen radical concentrations, electron paramagnetic resonance. Results:AMF and EMF exposed erythrocytes were compared. After 4 h incubation at high TBHP concentrations (>700 μM), AMF exposed erythrocytes released significantly more (p<0.05) hemoglobin (Hb), mostly as methemoglobin (metHb). Conversely, after 24 h incubation at low TBHP concentrations (⩽350 μM), EMF exposed erythrocytes released significantly more (p<0.001) hemoglobin, with metHb as a significant proportion of the total Hb. Erythrocytes exposed to AMF generated more radicals than those exposed to the EMF. Conclusion:Under particular conditions of oxidative stress, hypomagnetic fields can disrupt the functional state of erythrocytes and promote cell death; an additive effect is implicated

    Temperature Influence on the Properties of Thin Si3N4 Films

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    Applying Raman spectroscopy, small-angle x-ray scattering, and atomic force microscopy it were studied phase composition and surface morphology of nanoscale films Si3N4 (obtained by RF magnetron sputtering)

    Итоги научно-методического семинара «Состояние и перспективы развития селекции и семеноводства гороха овощного для переработки»

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    Practical and scientific section on «Present status and prospects in garden pea breeding program and seed management» was held at All-Russian Research Institute of Vegetable Breeding and Seed Production. The problems concerning of home pea production and processing were discussed. The leading experts in pea breeding from different institutions of Russian Academy of Agricultural Science (Research institute of Plant Growing, Vavilove Institute of Plant Industry, Lomonosov State University, Research Institute of Canning Industry, etc.) joined together to share experience and prospects.4-6 августа 2009 года во Всероссийском НИИ селекции и семеноводства овощных культур прошёл научно-практический семинар «Состояние и перспективы развития селекции и семеноводства гороха овощного для переработки», на котором обсуждались проблемы отечественного производства и переработки продукции гороха овощного и других овощных бобовых культур. В работе приняли участие ведущие специалисты по овощным бобовым культурам, представители Россельхозакадемии, Министерства сельского хозяйства РФ, ГНЦ ВНИИР им. Н.И. Вавилова, ВНИИССОК, ВНИИО, ВНИИКОП, МГУ им. М.В. Ломоносова и других научно-исследовательских учреждений и аграрных учебных заведений РФ и стран СНГ

    Quantitative comparison of single- and two-particle properties in the cuprates

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    We explore the strong variations of the electronic properties of copper-oxygen compounds across the doping phase diagram in a quantitative way. To this end we calculate the electronic Raman response on the basis of results from angle-resolved photoemission spectroscopy (ARPES). In the limits of our approximations we find agreement on the overdoped side and pronounced discrepancies at lower doping. In contrast to the successful approach for the transport properties at low energies, the Raman and the ARPES data cannot be reconciled by adding angle-dependent momentum scattering. We discuss possible routes towards an explanation of the suppression of spectral weight close to the (π,0)(\pi,0) points which sets in abruptly close to 21% doping.Comment: 7 pages, 4 figure

    Evidence of Color Coherence Effects in W+jets Events from ppbar Collisions at sqrt(s) = 1.8 TeV

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    We report the results of a study of color coherence effects in ppbar collisions based on data collected by the D0 detector during the 1994-1995 run of the Fermilab Tevatron Collider, at a center of mass energy sqrt(s) = 1.8 TeV. Initial-to-final state color interference effects are studied by examining particle distribution patterns in events with a W boson and at least one jet. The data are compared to Monte Carlo simulations with different color coherence implementations and to an analytic modified-leading-logarithm perturbative calculation based on the local parton-hadron duality hypothesis.Comment: 13 pages, 6 figures. Submitted to Physics Letters

    Search for a W' boson decaying to a bottom quark and a top quark in pp collisions at sqrt(s) = 7 TeV

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    Results are presented from a search for a W' boson using a dataset corresponding to 5.0 inverse femtobarns of integrated luminosity collected during 2011 by the CMS experiment at the LHC in pp collisions at sqrt(s)=7 TeV. The W' boson is modeled as a heavy W boson, but different scenarios for the couplings to fermions are considered, involving both left-handed and right-handed chiral projections of the fermions, as well as an arbitrary mixture of the two. The search is performed in the decay channel W' to t b, leading to a final state signature with a single lepton (e, mu), missing transverse energy, and jets, at least one of which is tagged as a b-jet. A W' boson that couples to fermions with the same coupling constant as the W, but to the right-handed rather than left-handed chiral projections, is excluded for masses below 1.85 TeV at the 95% confidence level. For the first time using LHC data, constraints on the W' gauge coupling for a set of left- and right-handed coupling combinations have been placed. These results represent a significant improvement over previously published limits.Comment: Submitted to Physics Letters B. Replaced with version publishe
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