American Journal of Physics and Applications

Archive

Volume 10, Issue 2, March 2022

  • A Damage Mechanics Analysis on Rheological Failure of Rocks Under High Temperatures and Pressures

    Zuan Chen, Zhihe Jin, Xiaoge Huang, Shengwen Qi

    Issue: Volume 10, Issue 2, March 2022
    Pages: 24-32
    Received: 16 February 2022
    Accepted: 3 March 2022
    Published: 11 March 2022
    DOI: 10.11648/j.ajpa.20221002.11
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    Abstract: During rheological process of rocks at high temperatures and pressures, damage occurs when the visco-plastic strains accumulate to a certain level. Damage is assumed to start accumulating at the onset of tertiary creep. The evolution of damage can lead to localized deformation and eventual failure of the rock. This paper develops a damage constitut... Show More
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  • The Diffusion Behavior of the System Driven by Non-Gaussian Noise or Its Time Derivative

    Hong Lu, Yan Lü

    Issue: Volume 10, Issue 2, March 2022
    Pages: 33-37
    Received: 16 February 2022
    Accepted: 7 March 2022
    Published: 14 March 2022
    DOI: 10.11648/j.ajpa.20221002.12
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    Abstract: The diffusion behavior of the system driven by the non-Gaussian noise and its time derivative are investigated in detail. The temperature dependence of the noise spectral profile is firstly analyzed using Monte Carlo simulations, which is shown that the spectrum of the non-Gaussian noise is a decreasing function of temperature when the frequency is... Show More
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  • Dependence of Orbital Feshbach Resonance in 173Yb on the Nuclear Hyperfine States

    Soumita Mondal

    Issue: Volume 10, Issue 2, March 2022
    Pages: 38-44
    Received: 9 March 2022
    Accepted: 24 March 2022
    Published: 31 March 2022
    DOI: 10.11648/j.ajpa.20221002.13
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    Abstract: A system of ultracold alkali (6Li, 40K) and alkaline-earth atoms (87Sr) will investigate the quantum simulation properties. Feshbach resonance (FR) is an essential tool for changing the interaction between particles by changing the magnetic field strength between the atoms. FR are of two kinds magnetic Feshbach resonance (MFR) and orbital Feshbach ... Show More
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  • Study of Thermoelectric Properties of Nickel Germano-silicides Obtained on the Basis of Bulk Solid Solutions of Silicon-germanium

    Nuriddin Azadovich Matchanov, Komiljon Abdusharipovich Bobojonov, Dilmurad Shamuradovich Saidov, Shokhzod Komiljonovich Abdusharipov, Alisher Erkaboevich Rajabov

    Issue: Volume 10, Issue 2, March 2022
    Pages: 45-50
    Received: 15 January 2022
    Accepted: 4 February 2022
    Published: 9 April 2022
    DOI: 10.11648/j.ajpa.20221002.14
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    Abstract: The effect of thermal annealing in vacuum (in the temperature range of 200-900°C) on the electrical conductivity of the structure of a nickel film - a single-crystal layer of germanosilicide has been studied. Nickel films 15 nm thick were sputtered by adsorption sputtering in vacuum. The possibility of forming conductive layers with a surface resis... Show More
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