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Keywords = Physics

  • Open Access Research Article
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    Trends Journal of Sciences Research 2015, 2(2), 64-72. http://doi.org/10.31586/Physics.0202.03
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    Abstract
    In the present paper, we propose an explanation of the ambiguity of the results of experiments on the study of high-temperature superconductivity of ammonia systems. At the heart of the theoretical interpretation of the experiments, we put the bipolaron model. In this study, we have shown mathematically that the barrier
    [...] Read more.
    In the present paper, we propose an explanation of the ambiguity of the results of experiments on the study of high-temperature superconductivity of ammonia systems. At the heart of the theoretical interpretation of the experiments, we put the bipolaron model. In this study, we have shown mathematically that the barrier of repulsion between polarons can be effectively reduced if the polarons are in the macroscopic dielectric layers, or capillaries. We constructed the theory of polaron states in the macroscopic dielectric layers. We specify the conditions under which the polarons are hold in the layer between dielectrics. It was found that the electrostatic image forces lead to the appearance of additional forces of attraction between polarons. These forces are conditioned by oscillations of polarons around the position of their fixation. Derivations are given of the upper and lower limits on the width of the gap in which the polaron oscillations are not suppressed. In this case take place disappearance Coulomb repulsion of the polarons. A long-range resonant interaction of two oscillators resulting in the appearance of effective attraction between polarons is discussed. This leads to the formation of diamagnetic singlet bipolarons due to quantum exchange interactions and the effects of electron-electron correlations. For glass capillaries (quasi-one-dimensional bipolaron) and for gap between glass plates (quasi-two-dimensional bipolaron) we give quantitative estimates of the gap width and the critical temperature at which there is a barrier-free formation of the bipolaron in ammonia. Numerical estimates are obtained for a case of the bipolaron in ammonia. We got a quantitative evaluation, which indicate that the barrier-free formation of singlet bipolaron in ammonia begins at temperatures below 80K. As the experiment showed the electrical resistance of ammonia systems decreases abruptly by 10-12 orders of magnitude in this temperature range. At the same time, experiments have shown that for the bulk superconductivity superconducting phase is only ~ 0.01%.  Full article
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    Mukhomorov V. K. (2004). Bipolaron Formations and Existence of Periodical Structure in Metal-Ammonia Systems. Physica Scripta., 70, no.5, 330-334.
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  • Open Access Review Article
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    Trends Journal of Sciences Research 2018, 3(4), 177-182. http://doi.org/10.31586/EnvironmentalChemistry.0304.05
    92 Views 91 Downloads PDF Full-text (721.521 KB)  HTML Full-text
    Abstract
    Nano-sized particles of less than 100 nm in diameter are attracting the scientific community due to their wide range of new applications in various fields including biophysics, material and medical sciences. Nanoparticles of noble metals such as silver have been found to reveal significantly distinct physical, chemical and biological properties
    [...] Read more.
    Nano-sized particles of less than 100 nm in diameter are attracting the scientific community due to their wide range of new applications in various fields including biophysics, material and medical sciences. Nanoparticles of noble metals such as silver have been found to reveal significantly distinct physical, chemical and biological properties from their bulk counterparts. As industrial production of nano-sized particles is increasing day by day, their dissemination in natural environments is also at an increase. This is leading to substantial water and soil pollution. Finding the adverse effects of such nano-sized particles on different faunal species is thus of utmost importance. In the present paper, toxic effects of silver nanoparticles on fish and rat models have been presented so as to have a view about the type of the damage posed by them. This study will not only add to the existing knowledge about the toxic effects of silver nanoparticles on faunal species but also help in formulating future pollution controlling programs.  Full article
    Figures

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  • Open Access Research Article
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    Trends Journal of Sciences Research 2019, 4(1), 29-38. http://doi.org/10.31586/MolecularPhysics.0401.05
    143 Views 75 Downloads PDF Full-text (1.482 MB)  HTML Full-text
    Abstract
    In this work, we discuss a theoretical model that can describe novel phenomena of induction of weak anomalous forces in gyroscopes under right rotations either in rest frame of the laboratory or in free-fall. The effect detected in the gyroscopes cannot be successfully associated to any conventional theory. So, we
    [...] Read more.
    In this work, we discuss a theoretical model that can describe novel phenomena of induction of weak anomalous forces in gyroscopes under right rotations either in rest frame of the laboratory or in free-fall. The effect detected in the gyroscopes cannot be successfully associated to any conventional theory. So, we elaborated the theoretical description of such forces in both experiments by means of a model based on the generalized quantum entanglement framework, by considering as quantum witnesses the magnetic permeability and as macroscopic observable the angular momentum of the gyroscopes rotors. Our calculations indicate that there is a good agreement with the experimental data obtained from literature for most rotation frequencies measured.  Full article
    Figures

    Figure 5 of 5

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