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  • Finding of the optimal parameters of animated and stereographic rainbow diffractive images 
    Borisov, I.S.; Girnyk, V.I.; Kostyukevych, S.A.; Grygoruk, V.I.; Kostyukevych, K.V. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2008)
    We have considered the basic aspects of the technology of animated and stereographic rainbow images. These images can be included in Optical Security Devices (OSDs) in order to increase their structure complexity and to ...
  • Finding proper factorizations in finite groups 
    Kirtland, J. (Algebra and Discrete Mathematics, 2009)
    One focus in group theory has been to establish the properties of a finite group that can be written as the product of two proper subgroups whose properties are known. The investigation here will proceed in the other ...
  • Finding Sources of Synchronizationfree Slices in Perfectly Nested Loops 
    Bielecki, W.; Siedlecki, K. (Электронное моделирование, 2007)
    Algorithms, permitting us to find sources of synchronization-free slices of perfectly nested uniform and non-uniform loops, are presented. Sources extracted are to be used for creating synchronization-free-slices that can ...
  • Finding the Optimal Solution to the Problem of Conditional Optimization on the Graph of the set of Placements 
    Koliechkina, L.M.; Nahirna, A.M. (Control systems & computers, 2020)
    An optimization problem on a combinatorial set of partial permutations with additional constraints is formulated in the paper. An algorithm for solving this type of problem is considered, which consists of four steps. The ...
  • Fine Gradings of Low-Rank Complex Lie Algebras and of Their Real Forms 
    Svobodová, M. (Symmetry, Integrability and Geometry: Methods and Applications, 2008)
    In this review paper, we treat the topic of fine gradings of Lie algebras. This concept is important not only for investigating the structural properties of the algebras, but, on top of that, the fine gradings are often ...
  • Fine structure of convective motions in the solar photosphere 
    Kostik, R.I. (Кинематика и физика небесных тел, 2005)
    The granulation brightnesses and convective velocities in the solar photosphere between the levels of formation of the continuum radiation and the temperature minimum are examined. The properties of the brightness and ...
  • Fine structure of critical opalescence spectra 
    Sushko, M.Ya. (Физика низких температур, 2007)
    The effect of the 1.5-scattering mechanism on the time and temperature behavior of the electric field autocorrelation function for the light wave scattered from fluids has been studied for the case where the order- parameter ...
  • Fine structure of NQR spectra in GaSe 
    Kovalyuk, Z.D.; Lastivka, G.I.; Khandozhko, О.G. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2009)
    Peculiarities of the observation of nuclear quadrupole resonance (NQR) in GaSe crystals grown from melt are under investigations. The splitting of a resonance NQR line by two identical spectra is caused by the availability ...
  • Finitary and Artinian-Finitary Groups over the Integers ℤ 
    Wehrfritz, B.A.F. (Український математичний журнал, 2002)
    In a series of papers, we have considered finitary (that is, Noetherian-finitary) and Artinian-finitary groups of automorphisms of arbitrary modules over arbitrary rings. The structural conclusions for these two classes ...
  • Finitary groups and Krull dimension over the integers 
    Wehrfritz, B.A. (Український математичний журнал, 2006)
    Let M be any Abelian group. We make a detailed study for reasons explained in the Introduction of the normal subgroup F∞AutM={g∈AutM:M(g−1)isaminimaxgroup} of the automorphism group AutM of M. The conclusions, although ...
  • Finite automaton actions of free products of groups 
    Fedorova, M.; Oliynyk, A. (Algebra and Discrete Mathematics, 2017)
    It is shown that for groups G and H that act faithfully by finite state automorphisms on regular rooted trees their free product G∗H admits a faithful action by finite state automorphisms on some regular rooted tree.
  • Finite-difference approximation of first-order partial differential-functional equations 
    Kamont, Z. (Український математичний журнал, 1994)
    We consider initial-boundary-value problems of the Dirichlet type for nonlinear equations. We give sufficient conditions of convergence of a general class of one-step difference methods. We assume that the right-hand side ...
  • Finite-difference time-domain method calculation of light propagation through H-PDLC 
    Kubytskyi, V.; Reshetnyak, V. (Semiconductor Physics Quantum Electronics & Optoelectronics, 2007)
    Presented is the study of the diffraction properties of transmission holographic polymer dispersed liquid crystal (H-PDLC) grating. We constructed a two-dimensional model of H-PDLC film with cylindrical LC droplets. ...
  • Finite-Dimensional Reductions of Conservative Dynamical Systems and Numerical Analysis. I 
    Prykarpatsky, A.K.; Brzychczy, S.; Samoilenko, V.G. (Український математичний журнал, 2001)
    We study infinite-dimensional Liouville–Lax integrable nonlinear dynamical systems. For these systems, we consider the problem of finding an appropriate set of initial conditions leading to typical solutions such as solitons ...
  • Finite-dimensional subalgebras in polynomial Lie algebras of rank one 
    Arzhantsev, I.V.; Makedonskii, E.A.; Petravchuk, A.P. (Український математичний журнал, 2011)
    Let Wn(K) be the Lie algebra of derivations of the polynomial algebra K[X] := K[x1, . . . , xn] over an algebraically closed field K of characteristic zero. A subalgebra L ⊆ Wn(K) is called polynomial if it is a submodule ...
  • Finite Element Analysis of Bearing Capacity of RC Beams Retrofitted with External Bars 
    Vasudevana, G.; Kothandaramanb, S. (Проблемы прочности, 2014)
    In this paper, results of the nonlinear finite element (FE) analysis of twenty numbers of RC beams are presented and validated using the experimental results reported elsewhere. The nonlinear behavior of RC beams with ...
  • Finite Element Analysis of Thermoelastic Fiber-Reinforced Anisotropic Hollow Cylinder with Dual-Phase-Lag Model 
    Hobiny, A.D.; Abbas, I.A.; Berto, F. (Проблемы прочности, 2018)
    In the present paper, we have constructed the equations for generalized thermoelasticity of a fiber-reinforced anisotropic hollow cylinder. The formulation is applied in the context of dualphaselag model (DPL). An application ...
  • Finite Element Analysis of the Temperature Field of an Emergency Brake and Study of its Thermal Properties 
    Wen, H.; Yang, F.; Lv, W.Q.; Chen, Y.X.; Wang, Q.W. (Проблемы прочности, 2015)
    For simulation of typical operating conditions of an emergency brake, analyze the theoretical heat energy of single emergency braking. The formula of the maximum temperature of a contact point was derived from the theory ...
  • Finite Element Calculation of Clinching with Rigid Die of Three Steel Sheets 
    Kaščák, L.; Spišák, E.; Kubík, R.; Mucha, J. (Проблемы прочности, 2017)
    The clinching joining of three steel sheets (DC06, DX53D, and H220PD type) was studied by utilization of the finite element method. Clinched joints were also prepared experimentally by joining the above-mentioned steels ...
  • Finite Element Method for Evaluating Rising and Slip of Column–Base Plate for Usual Connections 
    Hamizi, M.; Ait-Aider, H.; Alliche, A. (Проблемы прочности, 2011)
    Предложена конечноэлементная методика расчета деформирования и относительного проскальзывания креплений стальной колонны кжелезобетонному основанию. Рассмотрены два случая крепления: пластина приваривается к торцу колонны ...