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  • Hydrodynamic normalization conditions in the theory of degenerate Beltrami equations 
    Gutlyanskiĭ, V.Ya.; Ryazanov, V.I.; Sevost’yanov, E.A.; Yakubov, E. (Доповіді НАН України, 2023)
    Досліджено існування нормалізованих гомеоморфних розв’язків для виродженого рівняння Бельтрамі у всій комплексній площині з припущенням, що його вимірний коефіцієнт має компактний носій, а виродження рівняння контролюється ...
  • Hydrodynamic states of phonons in insulators 
    Sokolovsky, S.A. (Condensed Matter Physics, 2012)
    The Chapman-Enskog method is generalized for accounting the effect of kinetic modes on hydrodynamic evolution. Hydrodynamic states of phonon system of insulators have been studied in a small drift velocity approximation. ...
  • Hydrodynamic testing of flexible profiles for a vertical axis turbine 
    Zeiner-Gundersen, D.H.; Zeiner-Gundersen, S.A.S. (Прикладна гідромеханіка, 2015)
    Hydrodynamic turbine functionality depends on the ability of the individual profiles to capture the water energy efficiently during rotation. Here, we describe a unique flexible profile design based on hydrodynamic thrust ...
  • Hydrodynamic theory for a flexible profile vertical axis turbine 
    Zeiner-Gundersen, D. (Прикладна гідромеханіка, 2014)
    A novel vertical axis turbine with flexible profiles was designed and previously tested on-site in a river channel. The turbine design was based on initial simplified mathematical analyses and model testing done to optimize ...
  • Hydrodynamic theory of magnets with strong exchange interaction 
    Isayev, A. A.; Kovalevsky, M.Yu.; Peletminsky, S.V. (Физика низких температур, 1997)
    A microscopic approach to the description of multisublattice magnets with strong exchange interaction is proposed. Low-frequency dynamics of such magnets is characterized by the appearance of an additional dynamical variable, ...
  • Hydrodynamic theory of plasma oscillations in the presence of electron density correlations 
    Stupka, A.A. (Вопросы атомной науки и техники, 2012)
    Hydrodynamics of electronic plasma at presence of correlation of charge density is considered. Equations of ideal hydrodynamics with such condition for the case of immobile ions are received. It is shown that a new variable ...
  • Hydrodynamic-type model of relaxing media 
    Vladimirov, V. (Геофизический журнал, 2010)
  • Hydrogel nanoparticle encapsulated plasmid as a suitable gene delivery system 
    Rafiee, A.; Riazi-Rad, F.; Alimohammadian, M.H.; Havaskary, M.; Fatemi, S.M.R.; Pakpoor, B. (Цитология и генетика, 2015)
    To facilitate the delivery of genetic material, the use of appropriate carriers such as polymers is necessary. Nanoparticles comprising of chitosan-alginate polymers were formed through pregel preparation method. Chi/Alg ...
  • Hydrogen at extreme pressures (Review Article) 
    Goncharov, Alexander F.; Howie, Ross T.; Gregoryanz, Eugene (Физика низких температур, 2013)
    Here we review recent experimental and theoretical studies of hydrogen approaching metallization regime. Ex-perimental techniques have made great advances over the last several years making it possible to reach previously ...
  • Hydrogen behavior in bimetallic systems:permeation through thin metal films 
    Glazunov, G.P.; Volkov, E.D.; Hassanein, A. (Вопросы атомной науки и техники, 2000)
    The hydrogen permeation performances are presented for micron Mo, Ti, Nb, Zr, Cr, Ni, Cu, CuPd, TiN, and stainless steel films deposited on palladium from arc sputtered cathodes. Some physical mechanisms explaining anomalies ...
  • Hydrogen effect on local fracture emanating from notches in pipeline from steel API X52 
    Capelle, J.; Dmytrakh, I.; Pluvinage, G. (Проблемы прочности, 2009)
    Оцінено локальну міцність у концентраторах напружень трубопровідної сталі API X52 в умовах наводорожування при подачі катодного напруження. Уста­новлено залежність між концентрацією водню і критичним рівнем наванта­ження, ...
  • Hydrogen embrittlement of cold drawn prestressing steels: the role of the die inlet angle 
    Toribio, J.; Lorenzo, M.; Vergara, D.; Kharin, V. (Фізико-хімічна механіка матеріалів, 2013)
    Cold-drawn prestressing steel wires are susceptible to hydrogen embrittlement (HE) in aggressive environments, and residual stress-strain states generated in wires by the drawing process play the key role there. ...
  • Hydrogen gettering in annealed oxygen-implanted silicon 
    Misiuk, A.; Barcz, A.; Ulyashin, A.; Antonova, I.V.; Prujszczyk, M. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2010)
    Hydrogen gettering by buried layers formed in oxygen-implanted silicon (Si:O prepared by O²⁺ implantation at the energy 200 keV and doses 10¹⁴ and 10¹⁷ cm⁻²) was investigated after annealing of Si:O at temperatures up ...
  • Hydrogen Grain Boundary Segregation and Migration in the Alpha-Iron 
    Gavriljuk, V.G.; Teus, S.M. (Металлофизика и новейшие технологии, 2017)
    Based on the difference in diffusion mechanisms of substitutional and interstitial atoms and using molecular dynamics simulation of hydrogen migration, it is shown that accelerated hydrogen flux in the polycrystalline iron ...
  • Hydrogenic impurity in a bilayer spherical quantum dot 
    Boichuk, V.I.; Bilynskyi, I.V.; Leshko, R.Ya. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2009)
    In the work, on the basis of the exact solution of the Poisson equation for a bilayer quantum dot with a positively charged donor ion in its centre, determined is the potential energy of interaction of this impurity ion ...
  • Hydrogen-Induced Effects in Annealed and Prestrained 316L-Type Stainless Steel Studied by Mechanical Spectroscopy 
    Shyvaniuk, V.M. (Металлофизика и новейшие технологии, 2014)
    Annealed and tensile prestrained 316L-type stainless steel is studied by internal friction (IF) method. Low-frequency forced-vibration measurements of IF are carried out in the temperature range of 130—500 K before and ...
  • Hydrogen injector based on penning discharge with metal hydride cathode 
    Sereda, I.N.; Hrechko, Ya.O.; Tseluyko, A.F.; Ryabchikov, D.L. (Вопросы атомной науки и техники, 2018)
    The paper presents the results of the investigation of a neutral-hydrogen pulse injector based on Penning discharge with a metal hydride hollow cathode. The source of chemically pure hydrogen is a getter alloy Zr₅₀V₅₀ ...
  • Hydrogen in Nickel: Hydride or Miscibility Gap? 
    Movchan, D.N.; Teus, S.M.; Mogilny, G.S.; Gavriljuk, V.G. (Металлофизика и новейшие технологии, 2013)
    Using low temperature X-ray diffraction, the phase transformations in the hydrogen-saturated nickel are studied. At the hydrogen degassing, its content in nickel decreases down to H/M ratio of about 0.65. The further ...
  • Hydrogen Mobility and Its Interaction with Dislocations in Nickel-Based Inconel 718 Alloy 
    Teus, S.M. (Металлофизика и новейшие технологии, 2017)
    The hydrogen effects in the nickel-based alloy Inconel 718 are studied using the mechanical spectroscopy and mechanical tests. The enthalpies of hydrogen-atoms’ migration and hydrogen–dislocations binding as well as the ...
  • Hydrogen permeation through VPD and CVD tungsten films on palladium 
    Glazunov, G.P.; Andreev, A.A.; Baron, D.I.; Causey, R.; Hassanein, A.; Konotopskiy, A.L.; Patokin, A.P. (Вопросы атомной науки и техники, 2007)
    Isobars and isotherms were measured for hydrogen permeation through porous tungsten films on palladium, activation energy values were calculated for various Pd-W systems. The analysis of the obtained data and its comparison ...