Substantiation of method for calculating design parameters of horizontal hydraulic classifier

Process of gravitational treatment of granular materials in the pulp horizontal flow is accompanied by bearing stream flowing within differently inclined surfaces and by downstream of condensed pulp. In the article, method for calculating design parameters of horizontal classifier is validated, which is based on construction of trajectories of solid particle motion.Процесс гравитационной переработки зернистых материалов в горизонтальном потоке пульпы сопровождается течением несущего потока в пределах разнонаклонных поверхностей, а также оттоком вниз сгущенной пульпы. В работе обоснован метод расчета конструктивных параметров горизонтального классификатора, который основан на построении траектории движения твердых частиц.Процес гравітаційної переробки зернистих матеріалів у горизонтальному потоці пульпи супроводжується рухом несучого потоку в межах різнопохилих поверхонь, а також відтоком донизу згущеної пульпи. У роботі обґрунтований метод розрахунку конструктивних параметрів горизонтального класифікатора, заснований на побудові траєкторії руху твердих частинок

Functional Nanocomposites Formation by Electrochemical Deposition of Metals and Semiconductors into Porous Silicon

The paper concerns the study of formation of nanocomposites by electrochemical deposition of metals and semiconductors into the porous silicon. Ni and ZnO were used as experimental materials for deposition. The influence of deposition process parameters and structure of initial porous silicon substrates on morphology and composition of formed metal or semiconductor nanostructures are studied. Obtained nanocomposites demonstrated high filling factor and uniformity. Porous silicon/Ni nanocomposites showed strong magnetic anisotropy. Porous silicon/ZnO nanocomposites after thermal annealing had intensive photoluminescence in the visible range. Applications of obtained nanocomposites in the magnetic and optoelectronic devices discussed as well

Molecular and genetics approaches for investigation of phospholipase D role in plant cells

The review is devoted to the analysis of publications concerning the role of phospholipase D (PLD) in regulation of metabolism in plant cells. Analysis of molecular and genetic studies suggest that PLD is an important component of various hormonal and stress signaling pathways.Обзор посвящен анализу работ в области исследования роли фосфолипазы D в регуляции метаболизма клеток растений. Анализ работ, проведенных с использованием молекулярных и генетических подходов, позволяет судить о ФЛD как о важном компоненте сигнальных систем ряда гормонов и стрессов.Огляд присвячено аналізу робіт у площині дослідження ролі фосфоліпази D в регуляції метаболізму клітин рослин. Аналіз робіт, виконаних з використанням молекулярних та генетичних підходів, свідчить на користь ФЛD як важливого компонента сигнальних систем низки гормонів і стресів

Temperature dependence of resistivity of porous silicon formed on N-substrates

Results of measurement of resistivity of mesoporous silicon formed on n-type substrates in a wide temperature range are presented. Measurements show that at low temperatures there is a growth of resistance of four orders of magnitude compared to that at room temperature which occurs in a relatively narrow temperature range. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/2063

Functional Nanocomposites Formation by Electrochemical Deposition of Metals and Semiconductors into Porous Silicon

The paper concerns the study of formation of nanocomposites by electrochemical deposition of metals and semiconductors into the porous silicon. Ni and ZnO were used as experimental materials for deposition. The influence of deposition process parameters and structure of initial porous silicon substrates on morphology and composition of formed metal or semiconductor nanostructures are studied. Obtained nanocomposites demonstrated high filling factor and uniformity. Porous silicon/Ni nanocomposites showed strong magnetic anisotropy. Porous silicon/ZnO nanocomposites after thermal annealing had intensive photoluminescence in the visible range. Applications of obtained nanocomposites in the magnetic and optoelectronic devices discussed as well

Magnetic field - temperature phase diagram of quasi-two-dimensional organic superconductor lambda-(BETS)_2 GaCl_4 studied via thermal conductivity

The thermal conductivity kappa of the quasi-two-dimensional (Q2D) organic superconductor lambda-(BETS)_2 GaCl_4 was studied in the magnetic field H applied parallel to the Q2D plane. The phase diagram determined from this bulk measurement shows notable dependence on the sample quality. In dirty samples the upper critical field H_{c2} is consistent with the Pauli paramagnetic limiting, and a sharp change is observed in kappa(H) at H_{c2 parallel}. In contrast in clean samples H_{c2}(T) shows no saturation towards low temperatures and the feature in kappa(H) is replaced by two slope changes reminiscent of second-order transitions. The peculiarity was observed below ~ 0.33T_c and disappeared on field inclination to the plane when the orbital suppression of superconductivity became dominant. This behavior is consistent with the formation of a superconducting state with spatially modulated order parameter in clean samples.Comment: 10 pages, 8 figures, new figure (Fig.5) and references added, title change

Measurement of the polarisation of W bosons produced with large transverse momentum in pp collisions at sqrt(s) = 7 TeV with the ATLAS experiment

This paper describes an analysis of the angular distribution of W->enu and W->munu decays, using data from pp collisions at sqrt(s) = 7 TeV recorded with the ATLAS detector at the LHC in 2010, corresponding to an integrated luminosity of about 35 pb^-1. Using the decay lepton transverse momentum and the missing transverse energy, the W decay angular distribution projected onto the transverse plane is obtained and analysed in terms of helicity fractions f0, fL and fR over two ranges of W transverse momentum (ptw): 35 < ptw < 50 GeV and ptw > 50 GeV. Good agreement is found with theoretical predictions. For ptw > 50 GeV, the values of f0 and fL-fR, averaged over charge and lepton flavour, are measured to be : f0 = 0.127 +/- 0.030 +/- 0.108 and fL-fR = 0.252 +/- 0.017 +/- 0.030, where the first uncertainties are statistical, and the second include all systematic effects.Comment: 19 pages plus author list (34 pages total), 9 figures, 11 tables, revised author list, matches European Journal of Physics C versio

Observation of a new chi_b state in radiative transitions to Upsilon(1S) and Upsilon(2S) at ATLAS

The chi_b(nP) quarkonium states are produced in proton-proton collisions at the Large Hadron Collider (LHC) at sqrt(s) = 7 TeV and recorded by the ATLAS detector. Using a data sample corresponding to an integrated luminosity of 4.4 fb^-1, these states are reconstructed through their radiative decays to Upsilon(1S,2S) with Upsilon->mu+mu-. In addition to the mass peaks corresponding to the decay modes chi_b(1P,2P)->Upsilon(1S)gamma, a new structure centered at a mass of 10.530+/-0.005 (stat.)+/-0.009 (syst.) GeV is also observed, in both the Upsilon(1S)gamma and Upsilon(2S)gamma decay modes. This is interpreted as the chi_b(3P) system.Comment: 5 pages plus author list (18 pages total), 2 figures, 1 table, corrected author list, matches final version in Physical Review Letter