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  • Spectroscopy of yttrium dimers in argon matrices 
    Fang, Li; Chen, Xiaoyu; Shen, Xiaole; Liu, Yifei; Lindsay, D.M.; Lombardi, John R. (Физика низких температур, 2000)
    The absorption and resonance Raman spectra of yttrium dimers (Y₂) in argon matrices are measured for the first time. The absorption spectrum (scattering depletion spectrum SDS) shows a weak, broad transition centered near ...
  • Spectroscopy peculiarities of electric arc discharge plasma with iron vapours 
    Murmantsev, A.; Veklich, A.; Boretskij, V. (Вопросы атомной науки и техники, 2021)
    This work is devoted to spectroscopy peculiarities of electric arc discharge plasma with iron vapours. The solution of the main issue of optical emission spectroscopy, namely, selection of iron spectral lines, to study the ...
  • Spectroscopy pequliarities of thermal plasma with copper and nickel vapours 
    Veklich, A.N.; Kleshich, M.M.; Vashchenko, V.V.; Kuzminska, I.O. (Вопросы атомной науки и техники, 2015)
    Plasma of electric arc between Cu–Ni electrodes in the assumption of local thermodynamic equilibrium was investigated by optical emission spectroscopy. Temperature radial profiles in plasma column were obtained by Boltzmann ...
  • Spectroscopy studies of natural andalusite from Brazil 
    Taran, M.; Koch-Müller, M. (Записки Українського мінералогічного товариства, 2011)
  • SPECTROxSORT – ручной рентгенофлуоресцентный спектрометр для быстрого и точного анализа металлов на изделии 
    Ливицкий, М.М.; Грыцкив, Я.П. (Современная электрометаллургия, 2010)
    Исследованы технические возможности портативного рентгенофлуоресцентного спектрометра SPECTRO xSORT для анализа химического состава сплавов на основе железа, титана, меди. Полученные с помощью спектрометра xSORT результаты ...
  • Spectrum analysis of current in single-phase half-bridge inverter in domain of two variables 
    Korotyeyev, I.Ye. (Технічна електродинаміка, 2015)
    The object of this paper is a spectrum analysis of a load current in a single-phase half-bridge inverter with PWM. The analysis is based on an extension of differential equations with one variable of time to partial ...
  • Spectrum and States of the BCS Hamiltonian in a Finite Domain. III. BCS Hamiltonian with Mean-Field Interaction 
    Petrina, D.Ya. (Український математичний журнал, 2002)
    We investigate the spectrum of a model Hamiltonian with BCS and mean-field interaction in a finite domain under periodic boundary conditions. The model Hamiltonian is considered on the states of pairs and waves of density ...
  • Spectrum and States of the BCS Hamiltonian in a Finite Domain. II. Spectra of Excitations 
    Petrina, D.Ya. (Український математичний журнал, 2001)
    We establish that the averages per volume of the BCS and approximating Hamiltonians over all excited states coincide in the thermodynamic limit. Earlier, this was established only for the ground state.
  • Spectrum and states of the BCS Hamiltonian in a finite domain. I. Spectrum 
    Petrina, D.Ya. (Український математичний журнал, 2000)
    The BCS Hamiltonian in a finite cube with periodic boundary condition is considered. The special subspace of pairs of particles with opposite momenta and spin is introduced. It is proved that, in this subspace, the spectrum ...
  • Spectrum and states of the BCS Hamiltonian with sources 
    Petrina, D.Ya. (Український математичний журнал, 2008)
    We consider the BCS Hamiltonian with sources, as proposed by Bogolyubov and Bogolyubov, Jr. We prove that the eigenvectors and eigenvalues of the BCS Hamiltonian with sources can be exactly determined in the thermodynamic ...
  • Spectrum of electron-hole pair in quantum dots of a semiconductor nanolaser: theory 
    Pokutnyi, S.I. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2004)
    A theory of laser generation on size-quantization levels in semiconductor quantum dots put in a semiconductor matrix is developed. The size of quantum dots mass of which comprises the active sphere of an injection laser ...
  • Spectrum of mutations in patients with organic acidurias from Ukraine 
    Barvinska, O.I.; Olkhovych, N.V.; Shkurko, T.O.; Gorovenko, N.G. (Вiopolymers and Cell, 2018)
    Aim. To identify mutations in patients from Ukraine with glutaric aciduria I, isolated methylmalonic aciduria, and isovaleric aciduria. Methods. Sanger sequencing. Results. We have identified 37.5 % of alleles (3/8) in ...
  • Spectrum of nonlinear magnetoelastic waves in a cubic ferromagnet 
    Vakhitov, R.M.; Ryakhova, O.G. (Functional Materials, 2004)
    Peculiarities of the nonlinear magnetoelastic (ME) wave spectrum in a cubic ferromagnet with induced uniaxial anisotropy along [111] have been studied theoretically. It has been shown that in the case of resonance, as the ...
  • Spectrum of small-scale plasma structures in the photosphere 
    Kyzyurov, Yu.V. (Вопросы атомной науки и техники, 2007)
    In this report we consider possibility of formation of small-scale plasma structures in the turbulent flows of photospheric gas on the Sun and analyse dependence of their spectrum and intensity on height and the magnetic ...
  • Spectrum of Two-Magnon non-Heisenberg Ferromagnetic Model of Arbitrary Spin with Impurity 
    Tashpulatov, S.M. (Журнал математической физики, анализа, геометрии, 2013)
    We consider a two-magnon system in the isotropic non-Heisenberg ferromagnetic model of an arbitrary spin s on a n-dimensional lattice Zⁿ. We establish that the essential spectrum of the system consists of the union of at ...
  • Specular and diffusive reflectance of stainless steel mirrors sputtered with Ar⁺ ions 
    Konovalov, V.G.; Bondarenko, V.N.; Ryzhkov, I.V.; Shapoval, A.N.; Shtan’, A.F.; Skoryk, O.O.; Solodovchenko, S.I.; Voitsenya, V.S. (Вопросы атомной науки и техники, 2012)
    It was shown that a light source with edge sharpness can be used for very sensitive measurements of the ratio of specular and diffusive components of reflectance of the mirror subjected to sputtering.
  • Speed control of a matrix converter excited doubly-fed induction machine 
    Shapoval, I.A.; Clare, J.C. (Технічна електродинаміка, 2011)
    Speed control algorithm based on full doubly-fed induction machine model has been investigated. Experimental testing of the doubly-fed induction machine control algorithm with matrix converter at rotor side has been ...
  • Speleonimy sudeckie – próba klasyfikacji 
    Seroczyński, G. (Ономастичні науки, 2012)
    Ten artykuł stara się opisać i sklasyfikować speleonimy sudeckie – nazwy jaskiń oraz ich części (Sudety – góry w Polsce i Czechach, ciągnące się z północnego zachodu na południowy wschód na długość 310 km). Użyty materiał ...
  • Spent nuclear fuel dry storage: status and current issues 
    Yatsenko, M.V.; Korolyov, A.V. (Вопросы атомной науки и техники, 2019)
    Among all the options of spent nuclear storage, dry storage seems to be the most expedient method for the nearest future all over the world. Despite the economic attractiveness and the presence of a positive operating ...
  • Spherical detector device mathematical modeling with taking into account detector module symmetry 
    Batiy, V.G.; Fedorchenko, D.V.; Prokhorets, I.M.; Prokhorets, S.I.; Khazhmuradov, M.A. (Вопросы атомной науки и техники, 2005)
    Mathematical model for spherical detector device accounting to symmetry properties is considered. Exact algorithm for simulation of measurements procedure with multiple radiation sources developed. Modelling results are ...