Colecția instituțională: Recent submissions

  • Quasi-Newton Methods for Solving Nonlinear Programming Problems 
    MORARU, V. (Institute of Mathematics and Computer Science, 1995)
    In the present paper the problem of constrained equality optimization is reduced to sequential solving a series of problems of quadratic programming. The Hessian of the Lagrangian is approximated by a sequence of symmetric ...
  • A new approach to information coding and protection based on the theory of matroids 
    BORSHEVICH, V.; OLEINIK, W. (Institute of Mathematics and Computer Science, 1994)
    A new approach to coding and protection of information in the computer and telecommunication systems is proposed and discussed. It is based on the mathematical apparatus of the theory of matroids, which in combination with ...
  • Linguistic automaton today 
    IGNATIEVA, Maria; CHIZHAKOVSKY, Valentine; POPESCU, Anatol; PIOTROWSKI, Rajmund (Institute of Mathematics and Computer Science, 1994)
    Over the last thirty years the long range goal of the research project of the Speech Statistics (Sp.St.) international group is to develop and implement in computer simulation psycholinguistically realistic model of language ...
  • Substrate-dependent wetting layer formation during GaN growth: Impact on the morphology of the films 
    SIDORENKO, A.; PEISERT, H.; NEUMANN, H.; CHASSÉ, T. (American Institute of Physics, 2007)
    We have compared epitaxial growth of GaN films on 6H-SiC(0001)-(√3×√3) R30°−Ga and on (0001)-sapphire. Predeposited Ga layers were nitrided by ion beam assisted molecular beam epitaxy. Whereas on SiC the initially deposited ...
  • Methods of solving of the optimal stabilization problem for stationary smooth control systems. Part II Ending 
    KONDRATIEV, G.; BALABANOV, A. (Institute of Mathematics and Computer Science, 1999)
    In this article some ideas of Hamilton mechanics and differential-algebraic Geometry are used to exact definition of the potential function (Bellman-Lyapunov function) in the optimal stabilization problem of smooth ...
  • Approximation procedures for data acquisition in testing systems 
    SECRIERU, N. (Institute of Mathematics and Computer Science, 1999)
    This paper deals with the results of spline approximation functions applied to periodical experimental data and its comparison with polynomial approximation functions. The experimental data processing methods based on ...
  • High level of synthesis parallel problem-oriented TS - coordinated digital computing systems 
    KONDRATIEV, V.; BAZHANOV, Y.; BALABANOV, A. (Institute of Mathematics and Computer Science, 1998)
    The development of parallel digital computing systems (DCS) is a main direction in development of architecture of the computers wich succeets the on change of traditional principles of machines designing of consecutive ...
  • Model of inherent mechanisms of perception 
    KONDRATiEV, V.; UTROBIN, V.; GREMALSKII, A.; BALABANOV, A. (Institute of Mathematics and Computer Science, 1998)
    Formalization aspects of decision making procedure under the condition of a priori uncertainty of the analyzed images are considered. The analytical schemes of decision making process are constructed. They have the same ...
  • Design of the Sequential System Automata using Temporal Equivalence Classes 
    URSU, A.; GRUITA, G.; ZAPOROJAN, S. (Institute of Mathematics and Computer Science, 1997)
    A design method of sequential system automata using temporal logic specifications is proposed in this paper. The method is based on well-known Z.Manna and P.Wolper temporal logic satisfiability analysis procedure and is ...
  • An Algorithm for Solving Quadratic Programming Problems 
    MORARU, V. (Institute of Mathematics and Computer Science, 1997)
    Herein is investigated the method of solution of quadratic programming problems. The algorithm is based on the effective selection of constraints. Quadratic programming with constraints-equalities are solved with the help ...
  • Construction of complicated multifactor models of optimal form on the basis of statistical data, when the physical essence of phenomenon is known 
    LIVOVSKY, E.; CIOBAN, G. (Institute of Mathematics and Computer Science, 1997)
    The work contains computer-aided method of construction of multifactor and complicated models on the basis of experimental data. The models are non-linear but traditional (constructed with the help of the method with the ...
  • Models Nonlinear by Parameters 
    LIVOVSKY, E.; ANDRONATY, N. (Institute of Mathematics and Computer Science, 1997)
    In this work we spoke about the method of construction of models nonlinear by parameters with solution of system of nonlinear algebraic equations by combination of methods. We observed that method of shortest downhill is ...
  • Information model of decision making process for image recognition 
    KONDRATIEV, V.; UTROBIN, V.; BALABANOV, A. (Institute of Mathematics and Computer Science, 1997)
    Formalization aspects of decision making procedure under the condition of a priori uncertainty of the analyzed images are considered. The analytical schemes of decision making process are constructed. They have the same ...
  • Structural, Magnetic, and Superconducting Characterization of the CuNi/Nb Bilayers of the S/F Type Using Polarized Neutron Reflectometry and Complementary Techniques 
    KHAYDUKOV, Y.; MORARI, R.; MUSTAFA, L.; KIM, J.-H.; KELLER, T.; BELEVSKI, S.; CSIK, A.; TAGIROV, L.; LOGVENOV, G.; SIDORENKO, A.; KEIMER, B. (Springer Nature Switzerland, 2015)
    Structural, magnetic, and superconducting properties of S/F bilayers Nb/Cu 40Ni 60 deposited on silicon substrate have been characterized using polarized neutron reflectometry and complementary techniques. The study allowed ...
  • Smart Surface with Ferromagnetic Properties for Eco- and Bioanalytics 
    PAJEWSKA-SZMYT, M.; GADZAŁA-KOPCIUCH, R.; SIDORENKO, A.; BUSZEWSKI, B. (Springer Nature Switzerland, 2020)
    This chapter provides a brief overview of the literature about the use of magnetic particles. Particularly for eco- and bioanalytics as a sorbents to sample preparation, which can be applied to wide variety of target ...
  • Smart and Connected Sensors Network for Water Contamination Monitoring and Situational Awareness 
    VASEASHTA, A.; DUCA, G.; CULIGHIN, E.; BOGDEVICI, O.; KHUDAVERDYAN, S.; SIDORENKO, A. (Springer Nature Switzerland, 2020)
    The objective of this investigation is to develop a smart and connected prototype of sensors network for monitoring contaminants in surface and underground water sources globally in real-time. Several prototypes were ...
  • Sign-reversal thermopower in BI2SR2CACU2OY 
    BOIKO, M. P.; KANTSER, V. G.; KONOPKO, L. A.; SIDORENKO, A. S. (Elservier, 1989)
    Sign-reversal thermopower was observed in the single-phase superconductor Bi2Sr2CaCu2Oy. We consider the model density of states, which describes the thermopower behaviour.
  • Scaling behaviour of relaxation dependences in metaloxide superconductors 
    SIDORENKO, A. S.; PANAITOV, G. I.; GABOVICH, A. M.; MOISEEV, D. P.; POSTNIKOV, V. (Springer Nature Switzerland, 1991)
    In the present work we have measured the magnetization relaxation at T = 4-2 K in two substantially different superconductors: BaPbo.~sBio.250 3 (BPB, T~ 10K, Hcx ~ 12 Oe) and YBa2Cu307_ x (YBCO, T~ ~ 92 K). The SQUID ...
  • Scaling behavior of resistive transitions in thin superconducting films 
    FOGEL, N. Ya.; SIDORENKO, A. S. (Elservier, 1978)
    Resistive transitions to the superconducting state have been investigated for variations of both temperature and external magnetic field. Experimental data were obtained for thin films of vanadium and indium. The excess ...
  • Resistive Transition Broadening of Metal-Oxide Superconductors in Magnetic Fields 
    SIDORENKO, A. S.; KONOPKO, L. A.; KOSHELEV, A. E.; SIMONOV, A. Yu. (WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim, 1989)
    This note reports results of measurements and calculations of a shape of superconductive transitions of Bi-Sr-Ca-Cu-O polycrystalline samples. Bi4Sr3Ca3Cu4Ox samples with 2x3x10 mm3 dimensions were prepared by solid-state ...

Search DSpace


Advanced Search

Browse

My Account