Research & Reviews : Journal of Physics
Volume 8, Issue 1 (2019)
Published
Table of contents
-
Computation Modelling for Fine Particle Flow in Horizontal Slurry Pipelines
Abstract: The coal based thermal power plant in India faces the problem of dumping of coal ash. The coal ash produced by thermal plant is transported to dumping site through slurry pipeline. The flow of fine particles at higher flow velocity in slurry pipeline is a matter of curiosity. The transportation of coal ash slurry at higher flow velocity leads to high pressure drop and requires large pumping power which ultimately …
Published in Research & Reviews : Journal of Physics · Vol. 8, Issue 1, 2019 · pp. 1–6 Read article
-
Electron Beam and Gamma Radiation Dose Dependency on the Degradation Products of Polytetrafluoroethylene (PTFE)
Abstract: AbstractGamma radiation induced degradation phenomena of polytetrafluoroethylene (PTFE) in the form of granules has been studied. The Electron Spin Resonance (ESR) technique was used to study radical generation and behavior under different conditions. The ESR spectra of PTFE irradiated at low or very high doses of irradiation were doublets, characteristic of peroxy radicals. Similarly spectra at different temperatures are also doublets. In order to study nature of free radicals, the …
Published in Research & Reviews : Journal of Physics · Vol. 8, Issue 1, 2019 · pp. 104–114 Read article
-
Influence of Al2O3 Nanofiller on Morphological and Discharge Studies of PVP: CH3COOK Films
Abstract: Nanocomposite polymer (NCP) films were prepared by doping potassium acetate with polyvinyl pyrrolidone (PVP) by complete dispersion of aluminum oxide (Al2O3) with different wt% proportions by using solution-casting method. The acquired NCPs films were characterized systematically. The crystalline structure of the prepared NCPs films was confirmed by XRD. The little agglomeration and grain sizes involved in the films were analyzed by SEM. The energy bandgap values were observed to be …
Published in Research & Reviews : Journal of Physics · Vol. 8, Issue 1, 2019 · pp. 20–25 Read article
-
Study of Effect of Shape, Size and Symmetry on Electronic States of Some Three-dimensional Structures in Mesoscopic Size Regime
Abstract: This study presents theoretical study of effect of size and symmetry of different shaped three-dimensional GaAs structures in mesoscopic size regime. The effective mass Schrӧdinger equation is used in various shapes and its solution are modified as a function of volume and aspect ratio of structures. The calculated energy eigenvalues for square prism, equilateral prism, regular tetrahedral, cylindrical and spherical are comparatively analyzed to observe the effect of shape, size …
Published in Research & Reviews : Journal of Physics · Vol. 8, Issue 1, 2019 · pp. 26–36 Read article
-
Magneto-thermodynamic Stress Analysis of an Orthotropic Solid Cylinder by Fractional Order Theory Application
Abstract: This study presents the Magneto-thermodynamic Response of Orthotropic Solid Cylinder in context of fractional order theory. The Laplace transform and finite Marchi–Zgrablich transform techniques have been used to analyze the thermal behavior of solid cylinder. The Magneto-thermodynamic stresses and perturbation of magnetic field vector in finite orthotropic cylinder are obtained in the transformed domain under sudden temperature change to a constant temperature and permeated by uniform primary magnetic field. Numerical …
Published in Research & Reviews : Journal of Physics · Vol. 8, Issue 1, 2019 · pp. 37–45 Read article
-
Modeling of Thermoelastic Hollow Cylinder by the Application of Fractional Order Theory
Abstract: The present work deals with the Mathematical Modelling of Thermoelastic Hollow Cylinder occupying the space by the Application of Fractional Order Theory. A hollow cylinder is subjected to convective boundary condition on upper and lower plane surface also zero temperature is maintained on the curved surfaces. The attempt made to analyze the temperature, displacement and thermal stresses of cylinder by using Integral transform technique. Numerical results are computed and represented …
Published in Research & Reviews : Journal of Physics · Vol. 8, Issue 1, 2019 · pp. 46–57 Read article
-
A Study on the Effect of Perlite Nanoclay in PVdF-co-HFP/Li-BETI Composite Eletrolytes by XRD AC Impedance and FTIR Studies
Abstract: In the present study, mica family of phyllosilicates, the perlite nanoclay (80–190 nm) effect as a filler in consonance with EC:DMC (1:1) v/v ratio on PVdF-co-HFP-Li-BETI matrix has been investigated by ac impedance, XRD and FT-IR vibrational spectroscopy. The ionic conductivity of the order of 10-7–10-4 Scm-1 has been observed at the minimum participation of clay platelets is noted than its huge presence the non-polar phase of the PVdF has …
Published in Research & Reviews : Journal of Physics · Vol. 8, Issue 1, 2019 · pp. 58–72 Read article
-
BER Analysis of Convolutional Encoded DWT-OFDM and coded FFT-OFDM under Different Simulation Conditions
Abstract: In this study, we investigated the performance of Convolutional encoded Discrete Wavelet Transform based orthogonal frequency division multiplexing (DWT-OFDM) system over additive white Gaussian noise (AWGN) channel. QAM and PSK modulation have been used for simulations. Performance of Convolutional encoded DWT-OFDM is compared with uncoded DWT-OFDM system and encoded conventional OFDM system. Bit error rate (BER) is used as measuring parameter. Simulations have been done using MATLAB software. It has …
Published in Research & Reviews : Journal of Physics · Vol. 8, Issue 1, 2019 · pp. 7–19 Read article
-
Complex Dynamical Systems and Mathematical Modelling
Abstract: So-called “Complex Dynamical Systems” (that is, systems displaying complex behavior) do appear in condensed matter physics and chemistry, as well as, playing a fundamental role, in biological systems. They require a theoretical treatment in terms of “Mathematical Modelling”, with statistical formalisms being of large relevance. We present here a feature-like article describing and discussing the question. It has emphasized the difficult question of presence of hidden constraints, and the introduction …
Published in Research & Reviews : Journal of Physics · Vol. 8, Issue 1, 2019 · pp. 73–82 Read article
-
Kantowski-Sachs Cosmological Model with Quadratic Equation of State in Gravity
Abstract: In this paper, we have investigated Kantowski-Sachs cosmological model with Quadratic Equation of State (QEoS) in the framework of Teleparallel Gravity, so called gravity, where T denotes the torsion scalar. The behavior of accelerating universe is discussed by considering Linear gravity i.e. . The solutions of field equations are obtained by using variable deceleration parameter. The physical behavior of these models has been discussed using some physical quantities. Also, the …
Published in Research & Reviews : Journal of Physics · Vol. 8, Issue 1, 2019 · pp. 83–91 Read article
-
The Effect of L-Valine on the Growth and Characterization of Lithium Sulphate Monohydrate Single Crystals
Abstract: Pure and amino acid doped good quality single crystals of Lithium Sulphate Monohydrate (LSM) were grown by slow evaporation solution growth technique at room temperature using water as solvent. The effect of amino acid (L-valine) dopant on the growth and characterization of LSM single crystal was investigated. Single-crystal X-ray diffractometer was utilized to find the unit cell parameters for pure and L-valine doped LSM crystals. The powder X-ray diffraction pattern …
Published in Research & Reviews : Journal of Physics · Vol. 8, Issue 1, 2019 · pp. 92–103 Read article