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  • Komir, A.I.; Odeychuk, N.P.; Tkachenko, V.I.; Ulybkin, A.L.; Nikolaenko, A.A. (Вопросы атомной науки и техники, 2018)
    At high-temperature oxidation of nuclear graphite, the oxidant flow in the near-surface region is taken into account. Macro- and microscopic modeling of the oxidation of the near-surface layer was carried out. The calculation ...
  • Bagraev, N.T.; Grigoryev, V.Yu.; Klyachkin, L.E.; Malyarenko, A.M.; Mashkov, V.A.; Romanov, V.V.; Rul’, N.I. (Физика низких температур, 2017)
    The negative- U impurity stripes confining the edge channels of semiconductor quantum wells are shown to allow the effective cooling inside in the process of the spin-dependent transport, with the reduction of the ...
  • Hellmund, M.; Janke, W. (Condensed Matter Physics, 2005)
    We discuss recently generated high-temperature series expansions for the free energy and the susceptibility of random-bond q-state Potts models on hypercubic lattices. Using the star-graph expansion technique, ...
  • Boldasov, V.S.; Kuzmichev, A.I.; Melnichenko, M.S.; Shulaev, V.M. (Вопросы атомной науки и техники, 2021)
    The kinetic simulation of high-voltage beam discharge at low pressure of nitrogen is fulfilled. The characteristics of particle flows to the tantalum cathode and back reflection of fast nitrogen atoms are calculated. The ...
  • Pachkov, A.A.; Bak, P.A. (Вопросы атомной науки и техники, 2006)
    A 10 kW power supply (PS) with smooth adjustment of the load current from zero up to 2 kA is described. The operating mode with a load current stability up to 0.1% and long-term instability of 0.01% is possible. The PS ...
  • Drozd, I.M.; Kuzmichev, A.I. (Вопросы атомной науки и техники, 2016)
    The features of operation of a high-voltage gas-discharge switch device with two control electrodes (grids) are considered. The high-density crossed fields low-pressure glow discharge of magnetron type with a cold cathode ...
  • Anokhin, R.A.; Dubniuk, S.N.; Gaponenko, N.I.; Kobets, A.P.; Kravchenko, A.I.; Manuilenko, O.V.; Reshetnikov, V.N.; Shevchenko, A.S.; Soshenko, V.A.; Svichenskiy, V.G.; Zajtsev, B.V.; Zabotin, A.V.; Zhuravlyov, V.G.; Zhuravlyov, A.V. (Вопросы атомной науки и техники, 2019)
    The high-voltage pulse modulator based on the modern semiconductor elements is described. The modulator is intended for use in the power supply system of LINAC helium ions injector and has the ability to smoothly adjust ...
  • Beloglazov, V.I.; Dyomin, V.S.; Dovbush, L.S.; Kosoj, A.I.; Shkirida, S.M.; Tur, Yu.D. (Вопросы атомной науки и техники, 2004)
    The data on developing and creating high-voltage pulse modulators for linacs with using Insulator Gate Bipolar Transistors (IGBT) and Integrated Gate Commutate Thyristors (IGCT) are presented. Comparative analysis of ...
  • Reshetnyak, N.G.; Romas’ko, V.P.; Chertishchev, I.A. (Вопросы атомной науки и техники, 2018)
    A small-sized nanosecond generator was developed to trigger a magnetron gun. A voltage pulse of amplitude up to 20 kV is applied to anode for gun triggering. Rise and fall fronts of high-voltage pulse are 20 and 70 ns ...
  • Kuznetsov, B.I.; Nikitina, T.B.; Bovdui, I.V. (Електротехніка і електромеханіка, 2019)
    Aim. The synthesis of single-circuit system of active shielding of magnetic field, generated by group of high voltage power lines, with different spatial arrangement of shielding coil. Results. Three variant of single-circuit ...
  • Vadimov, N.A.; Sarancha, G.A.; Drabinskiy, M.A.; Melnikov, A.V.; Eliseev, L.G.; Khabanov, Ph.O.; Kharchev, N.K.; Komarov, O.D. (Вопросы атомной науки и техники, 2020)
    D-shaped tokamak T-15MD is nowunder construction in the NRC “Kurchatov Institute”. Heavy ion beam probing (HIBP) is an important part of T-15MD diagnostic system. Calculations of the probing ions trajectories show that the ...
  • Agafonov, A.V.; Krastelev, E.G.; Mikhalev, P.S. (Вопросы атомной науки и техники, 1999)
  • Kushnir, V.A. (Вопросы атомной науки и техники, 1999)
    The high-frequency guns with thermoionic cathode are effective sources of electrons for linear accelerators. The work on perfecting these sources of electrons actively proceeds now in many laboratories of the world. The ...
  • Gutlyanskiĭ, V.Ya.; Nesmelova, O.V.; Ryazanov, V.I.; Yefimushkin, A.S. (Доповіді НАН України, 2022)
    We prove the existence of solutions for the Hilbert boundary-value problem with arbitrary measurable data for the nonlinear equations of the Vekua’s type ∂Z̅̄f(z) = h(z)q(f(z)). The found solutions differ from the classical ...
  • Ruijsenaars, Simon N.M. (Symmetry, Integrability and Geometry: Methods and Applications, 2009)
    The Heun equation can be rewritten as an eigenvalue equation for an ordinary differential operator of the form −d²/dx²+V(g;x), where the potential is an elliptic function depending on a coupling vector g ∈ R⁴. Alternatively, ...
  • Simon N.M. Ruijsenaars (Symmetry, Integrability and Geometry: Methods and Applications, 2015)
    The 'relativistic' Heun equation is an 8-coupling difference equation that generalizes the 4-coupling Heun differential equation. It can be viewed as the time-independent Schrödinger equation for an analytic difference ...
  • Ben Salem, Nejib; Samaali, Taha (Symmetry, Integrability and Geometry: Methods and Applications, 2009)
    We consider expansions of functions in Lp(R,|x|2kdx), 1 ≤ p < +∞ with respect to Dunkl-Hermite functions in the rank-one setting. We actually define the heat-diffusion and Poisson integrals in the one-dimensional Dunkl ...
  • Belov, A.S.; Derbilov, V.I.; Esin, S.K.; Klenov, V.S.; Nikulin, E.S.; Serov, V.L.; Feschenko, A.V.; Frolov, O.T.; Yakushev, V.P.; Zubets, V.N. (Вопросы атомной науки и техники, 2006)
    Status report is presented for an H⁻ injector being now under construction. The injector parameters are as follows: energy − 400 keV; average beam current − 400 µA; beam pulse duration − up to 200 µs; pulse repetition ...
  • Rybalchenko, G.V.; Smolyakov, N.V.; Shirasawa, K.; Morita, M.; Hiraya, A. (Вопросы атомной науки и техники, 2001)
    A linear/helical multimode undulator, which is installed at storage ring in Hiroshima Synchrotron Radiation Center, is initially designed for the utilizing of circularly polarized light from its fundamental harmonic in the ...
  • Tsymbaliuk, O.V.; Naumenko, A.M.; Skoryk, M.A.; Nyporko, O.Yu.; Davidovska, T.L.; Skryshevsky, V.A. (Вiopolymers and Cell, 2016)
    Aim. To investigate the influence of titanium dioxide nanoparticles (TiO₂) on histamine-, nicotine- (acetylcholine-nicotine)-stimulated modulations of mechanical activity in smooth muscles of caecum and stomach of rats. ...