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Wyszukujesz frazę "Monte Carlo simulations" wg kryterium: Temat

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    Wyświetlanie 1-4 z 4
    Tytuł:
    Monte Carlo simulation of dispersive carrier transport in disordered solids in the presence of space charge effects
    Autorzy:
    Tomaszewicz, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/1954064.pdf
    Data publikacji:
    1998
    Wydawca:
    Politechnika Gdańska
    Tematy:
    Monte Carlo simulations
    Monte Carlo methods
    dispersive carrier transport
    disordered solids
    space charge effects
    multiple-trapping carrier transport
    MT transport equations
    Opis:
    A Monte Carlo (MC) method of simulation of the multiple-trapping (MT) carrier transport in disordered solids, taking into account the space charge effects, is presented. The main idea is to utilize the ordered binary bees for the storage of sequences of the carrier positions and release times. An exemplary implementation of the MC method in the case of isothermal surface-potential decay is described. Also, modifications of the algorithm for other experimental configurations are indicated. The preliminary simulation results are compared with the approximate solutions of MT transport equations.
    Źródło:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 1998, 2, 1; 19-29
    1428-6394
    Pojawia się w:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Polar head charge of membrane modifiers and their biological activity: the Monte Carlo simulation studies
    Autorzy:
    Kubica, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1953950.pdf
    Data publikacji:
    1998
    Wydawca:
    Politechnika Gdańska
    Tematy:
    Monte Carlo simulations
    membrane modifiers
    phospholipids
    Pink model
    membrane
    membrane simulations
    gel fluid transition
    polar head charge
    biological activity
    Opis:
    On the basis of the 10-state Pink model, the effect of the polar head charge of amphiphilic modifier molecules has been discussed. It was shown, that for small concentrations of anionic and cationic compounds inserted into a layer composed of electroneutral lipids the electrostatic interaction, in spite of the long-range character, can be limited to the nearest neighbour interaction. Computer simulation results suggest, that the gel-fluid transition temperature can be lowered or raised by a proper selection of anionic-cationic amphiphilic modifiers. Moreover, the effect of ionic strength of the membrane medium and dielectric permeability of the hydrophobic part of membrane, where a shift of the dielectric constant from 5 to 80 occurred, has been studied. It was also shown that addition of alkyl molecules to the membrane, which are the counterions of alkyl modifier molecules added earlier, almost doubles the number of incorporated membrane modifiers. Membrane permeability analysis shows that membrane permeability, at temperatures lower than the gel-fluid transition temperature, should be more related to the number of small domains (cluster area) and less to the interfacial area.
    Źródło:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 1998, 2, 4; 601-609
    1428-6394
    Pojawia się w:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Elastic properties of the rectangular crystalline phase of planar hard cyclic pentamers
    Autorzy:
    Tretiakov, K. V.
    Wojciechowski, K. W.
    Powiązania:
    https://bibliotekanauki.pl/articles/1965832.pdf
    Data publikacji:
    2001
    Wydawca:
    Politechnika Gdańska
    Tematy:
    elastic constants
    Poisson ratio
    hard molecule
    anisotropic body
    Monte Carlo simulations
    computer simulation
    close packing
    orientational phase transition
    Opis:
    Structural and elastic properties of the densest known solid phase of two-dimensional (2D) system of hard cyclic pentamers (each pentamer is composed of five discs which centres are placed at vertices of a perfect pentagon of sides equal to the disc diameter, delta) are studied by Monte Carlo simulations. The present study confirms that at high densities the pentamers form a 2D solid structure of rectangular lattice with two pentamers (which librate, without rotation, around their mean orientations) in the unit cell. Elastic constants calculated for this structure show that, in contrast to densely packed 2D hard cyclic heptamers (composed of seven discs of centres forming a perfect heptagon of sides equal to the disc diameter delta), the pentamers do not exhibit anomalous Poisson's ratios.
    Źródło:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2001, 5, 3; 331-340
    1428-6394
    Pojawia się w:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Flows in microchannels
    Autorzy:
    Kucaba-Piętal, A.
    Walenta, Z.
    Peradzyński, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/1955808.pdf
    Data publikacji:
    2001
    Wydawca:
    Politechnika Gdańska
    Tematy:
    microchannel flow
    microflows
    micropolar fluid
    molecular dynamics simulations
    direct Monte Carlo simulation
    direct Monte Carlo methods
    Opis:
    The aim of this paper is to present a survey of the results for the flows of simple gases and liquids with substructure through narrow channels, obtained with the Direct Monte-Carlo and Molecular Dynamics Simulation methods.
    Źródło:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2001, 5, 2; 179-189
    1428-6394
    Pojawia się w:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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