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    Wyświetlanie 1-4 z 4
    Tytuł:
    On the Quantum Theory of Impact Phenomenon for the Conditions of Elastic Deformation of Impacted Body
    Autorzy:
    Pluta, Z.
    Hryniewicz, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/412030.pdf
    Data publikacji:
    2013
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    impact
    Quantum (potential)
    potential field
    energy
    Principle of mechanical energy conservation
    space-time
    dynamics
    Opis:
    The work contains some of the elements of adequate quantum theory of impact phenomenon. These elements form the prelude to verification of the existent non-adequate theory of the impact phenomenon. At first a correct definition of impact has been formulated. For comparison, the interpretation of the elastic impact according to the existent knowledge is given. Then, taking advantage of the new correctly formulated the principle of mechanical energy conservation, the energetic states of impacting body have been described. Basing on this, the formula on dynamic deflection has been derived. This formula is adequate in character and fully corresponds with investigated reality.
    Źródło:
    International Letters of Chemistry, Physics and Astronomy; 2013, 7, 1; 45-59
    2299-3843
    Pojawia się w:
    International Letters of Chemistry, Physics and Astronomy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Heat Absorption by a Thermal System
    Autorzy:
    Pluta, Z.
    Hrynkiewicz, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/411922.pdf
    Data publikacji:
    2013
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    heat
    quantum nature of the reality
    temperature
    specific heat
    heat force
    heat potential
    potential field
    temperature constant
    thermal energy
    Opis:
    The work deals with revealing the quantum nature of the heat absorption phenomenon by a thermal system, describing the phenomenon with a proper energetic interpretation. At first, the existent description of the heat absorption phenomenon by a system has been described. Then the mechanicalthermal analogy was introduced, using it for a better explanation of the determined thermal notions. A set of characteristics of the heat absorption phenomenon was developed by taking advantage of this analogy. The starting point from the source thermal characteristics, being differential dependence of thermal force on temperature, has been regarded. That made it possible to achieve a detail solution, being the reason model of the described natural system, which is the model having a physical sense.
    Źródło:
    International Letters of Chemistry, Physics and Astronomy; 2013, 1; 17-32
    2299-3843
    Pojawia się w:
    International Letters of Chemistry, Physics and Astronomy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Tunnelling effects of a Gaussian wave packet impinging on a barrier
    Autorzy:
    Papadopoulos, George J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1954608.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Gdańska
    Tematy:
    quantum tunnelling
    Gaussiam wave packet
    potential barrier
    tunelowanie kwantowe
    fale Gaussama
    potencjalna bariera
    Opis:
    A general procedure based on momentum-like quantity provides the reflection and transmission amplitudes for a given barrier sandwiched by semiconductor reservoirs is presented. Furthermore, the evolution of the wave function stemming from an initial Gaussian wave packet located on the left hand side of the barrier with ignorable barrier overlap is obtained. The evolving wave function enables obtaining the associated probability and current densities space and time-wise. As application, the case of smooth double barrier is considered. The numerical results exhibit similar picture as obtained via propagator in the limited case of square barrier, e.g. repeated current density reversal at the barrier entrance, while being unidirectional at the exit. Presently, the treatment takes account of any barrier, inclusive of applied voltage. The basic quantity required is the value of the momentum-like quantity at the barrier entrance, which is obtained solving a Riccati equation governing the quantity, in question, whose value is known at the barrier exit in terms of the carrier energy and applied bias.
    Źródło:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2020, 24, 1; 83-91
    1428-6394
    Pojawia się w:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Quantum-inspired evolutionary optimization of SLMoS2 two-phase structures
    Autorzy:
    Kuś, Wacław
    Mrozek, Adam
    Powiązania:
    https://bibliotekanauki.pl/articles/29520072.pdf
    Data publikacji:
    2022
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    quantum-inspired evolutionary algorithm
    optimization
    nanostructure
    two-phase SLMoS2
    molecular dynamics
    molecular statics
    atomic potential
    ReaxFF
    material properties
    Opis:
    The paper focuses on applying a Quantum Inspired Evolutionary Algorithm to achieve the optimization of 2D material containing two phases, 2H and 1T, of Molybdenum Disulphide (MoS2). The goal of the optimization is to obtain a nanostructure with tailored mechanical properties. The design variables describe the shape of inclusion made from phase 1T in the 2H unit cell. The modification of the size of the inclusions leads to changes in the mechanical properties. The problem is solved with the use of computed mechanical properties on the basis of the Molecular Statics approach with ReaxFF potentials.
    Źródło:
    Computer Methods in Materials Science; 2022, 22, 2; 67-78
    2720-4081
    2720-3948
    Pojawia się w:
    Computer Methods in Materials Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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