Showing papers in "Canadian Journal of Physics in 2016"
TL;DR: In this article, the authors compared the heat transfer characteristics of traditional nanofluid with that of emerging hybrid nano-fluid, a new type of conventional fluid that has been used toward the en...
Abstract: This work compares the heat transfer characteristics of traditional nanofluid with that of emerging hybrid nanofluid. Hybrid nanofluid, a new type of conventional fluid, has been used toward the en...
278 citations
TL;DR: In this paper, the dual phase-lag (DPL) heat transfer model is introduced to study the problem of an isotropic generalized thermoelastic medium with an internal heat source that is moving with a con...
Abstract: In this work, the dual-phase-lag (DPL) heat transfer model is introduced to study the problem of an isotropic generalized thermoelastic medium with an internal heat source that is moving with a con...
109 citations
TL;DR: In this article, the basic radiation parameters of tellurite glasses with different forming oxides (B2O3, BaO, K2O, V2O5, WO3 and ZnO) have been studied over a wide photon energy range from 1...
Abstract: In the present paper, the basic radiation parameters of tellurite glasses with different forming oxides (B2O3, BaO, K2O, V2O5, WO3, and ZnO) have been studied over a wide photon energy range from 1...
89 citations
TL;DR: Stochastic numerical treatment is presented for boundary value problems (BVPs) arising in nanofluidics for nonlinear Jeffery–Hamel flow (NJ-HF) equations using feed-forward artificial neural networks (ANNs) optimized with bio-inspired computing based on genetic algorithms (GAs) integrated with the active-set method (ASM).
Abstract: In this study, stochastic numerical treatment is presented for boundary value problems (BVPs) arising in nanofluidics for nonlinear Jeffery–Hamel flow (NJ-HF) equations using feed-forward artificia...
47 citations
TL;DR: In this article, the evolution from inflation to late-time acceleration is investigated in a unified way, using a two-component fluid constituted from extended Chaplygin gas alongside a phantom scalar field.
Abstract: The universe evolution from inflation to late-time acceleration is investigated in a unified way, using a two-component fluid constituted from extended Chaplygin gas alongside a phantom scalar field. We extract solutions for the various cosmological eras, focusing on the behavior of the scale factor, the various density parameters and the equation-of-state parameter. Furthermore, we extract and discuss bouncing solutions. Finally, we examine the perturbations of the model, ensuring their stability and extracting the predictions for the tensor-to-scalar ratio.
34 citations
TL;DR: In this paper, the behavior of anisotropic compact stars in the background of R + αRμνTμν gravity model is investigated using Krori-Barua metric solutions where constants are calculated using masses and radii of compact stars.
Abstract: This paper investigates the behavior of anisotropic compact stars in the background of R + αRμνTμν gravity model. For this purpose, we use Krori–Barua metric solutions where constants are calculated using masses and radii of compact stars like Her X-1, SAX J 1808.4–3658, and 4U1820–30. We analyze regular behavior of effective energy density, and radial and transverse pressures in the interior of compact stars. We also discuss energy conditions, effect of anisotropic factor, and stability criteria of these stars. It is concluded that the considered compact star models satisfy all the energy conditions and remain stable against the anisotropic effect in this gravity.
31 citations
TL;DR: In this article, the authors present the results of a novel Mossbauer experiment in a rotating system, implemented recently at Istanbul University, which yields the coefficient k = 0.69 ± 0.02 within the frame of the expres...
Abstract: We present the results of a novel Mossbauer experiment in a rotating system, implemented recently at Istanbul University, which yields the coefficient k = 0.69 ± 0.02 within the frame of the expres...
27 citations
TL;DR: In this article, a two-armed macroinitiator containing coumarin was synthesized, characterized by Fourier transform infrared spectroscopy and 1H nuclear magnetic resonance techniques.
Abstract: In the present work, two-armed macroinitiator containing coumarin were synthesized, characterized by Fourier transform infrared spectroscopy and 1H nuclear magnetic resonance techniques and investi...
27 citations
TL;DR: In this article, the Schrodinger equation for quaternionic quantum mechanics with a Dirac delta potential has been investigated and the derivative discontinuity condition for the quaternion wave funct...
Abstract: In this paper, the Schrodinger equation for quaternionic quantum mechanics with a Dirac delta potential has been investigated. The derivative discontinuity condition for the quaternionic wave funct...
27 citations
TL;DR: The spatially homogeneous and anisotropic LRS Bianchi type-V Universe filled with variable modified Chaplygin gas in the framework of the Brans-Dicke (Brans and Dicke) was studied in this article.
Abstract: The spatially homogeneous and anisotropic LRS Bianchi type-V Universe filled with variable modified Chaplygin gas in the framework of the Brans–Dicke (Brans and Dicke. Phys. Rev. 124, 925 (1961). d...
26 citations
TL;DR: The structural and electronic properties of the doubly charged diatomic dications BeX2+ (X = Na, K) have been systematically investigated in this paper, where the ab initio calculations method is based on the use of n...
Abstract: The structural and electronic properties of the doubly charged diatomic dications BeX2+ (X = Na, K) have been systematically investigated. The ab initio calculations method is based on the use of n...
TL;DR: In this article, an investigation is carried out on magnetohydrodynamic boundary layer flow as well as heat and mass transfer of a Casson fluid in a porous medium under the action of multiple slips, thermal r...
Abstract: An investigation is carried out on magnetohydrodynamic (MHD) boundary layer flow as well as heat and mass transfer of a Casson fluid in a porous medium under the action of multiple slips, thermal r...
TL;DR: In this paper, the authors presented a new exact solution of charged anisotropic Tolman VII type solution representing compact stars, where the transverse pressure and sound speed are decreasing in nature and well behaved.
Abstract: We present a new exact solution of charged anisotropic Tolman VII type solution representing compact stars. Here the transverse pressure and sound speed are decreasing in nature and well behaved. T...
TL;DR: In this article, the Wigner functions for the harmonic oscillator including corrections from generalized uncertainty principles (GUPs) were computed and the corresponding marginal probability densities and other pr...
Abstract: We compute Wigner functions for the harmonic oscillator including corrections from generalized uncertainty principles (GUPs), and study the corresponding marginal probability densities and other pr...
TL;DR: In this paper, the Shannon entropy of a nonrelativistic quantum system with the Killingbeck potential was investigated with Coulomb, linear, and harmonic terms, and the position and momentum information was analyzed.
Abstract: The Shannon entropy of a nonrelativistic quantum system is investigated with the Killingbeck potential, which includes Coulomb, linear, and harmonic terms. The position and momentum information ent...
TL;DR: In this paper, it was shown that if one considers a non-minimal coupling between the matter and scalar field, it can give rise to a bouncing universe (i.e., an expanding universe preceded by a contracting universe).
Abstract: In this paper it is shown that in Brans–Dicke theory, if one considers a non-minimal coupling between the matter and scalar field, can give rise to a bouncing universe (i.e., an expanding universe preceded by a contracting universe). Two examples of such universes have been considered in a spatially flat Friedmann–Robertson–Walker universe and their physical properties have been studied.
TL;DR: In this article, the effect of the presence of nanoparticles and the thermal interaction between phases on the flow, temperature distribution of phases, the concentration distribution, and the Nusselt number of phases is theoretically studied.
Abstract: The present study aims to examine the local thermal non-equilibrium natural convection heat and mass transfer of nanofluids in a triangular enclosure filled with a porous medium. The effect of the presence of nanoparticles and the thermal interaction between phases on the flow, temperature distribution of phases, the concentration distribution of nanoparticles as well as the Nusselt number of phases is theoretically studied. The interaction between the phases of nanoparticles and the base is taken into account by using a three thermal energy equation model while the concentration distribution of nanoparticles is modeled by Buongiorno’s model. A hot flush element is mounted at the vertical wall of the triangle enclosure to provide a constant temperature of Th while the inclined wall is at a constant temperature of Tc. A three heat equation model by considering the local thermal non-equilibrium model of nanoparticles, the porous medium, and the base fluid is developed and utilized for natural convection of ...
TL;DR: In this article, the authors reconstruct an appropriate model for Bianchi type I and Bianchi V space-times in f(R, T) gravity with the help of special law of deceleration parameter in connection to f (R,T) gravity (where R is the Ricci scalar and T is the trace of energymomentum tensor).
Abstract: In this paper, our attention is to reconstruct an appropriate model for Bianchi type I and Bianchi V space–times in f(R, T) gravity with the help of special law of deceleration parameter in connection to f(R, T) gravity (where R is the Ricci scalar and T is the trace of energy–momentum tensor). We solve the modified Einstein field equations for anisotropic and homogeneous Bianchi type V space–time. The solution of field equations facilitates finding out the physical as well as kinematical quantities. We explore the behavior of null energy condition, energy density, and deceleration parameter to present cosmic picture.
TL;DR: In this paper, it was shown that the virial theorem of Clausius rests on limits of integration in temporal averages being specified by spatial symmetry, rather than on long dura...
Abstract: By exploring diverse simple cases, we show that the virial theorem (VT) of Clausius rests on limits of integration in temporal averages being specified by spatial symmetry, rather than on long dura...
TL;DR: In this paper, a new class of solutions for the Einstein-Maxwell field equations for static spherically symmetric space-times by considering the negative anisotropic pressures was obtained.
Abstract: We have obtained a new class of solutions for the Einstein–Maxwell field equations for static spherically symmetric space–times by considering the negative anisotropic pressures, which represents a...
TL;DR: In this article, the bound state energy eigenvalues and corresponding eigenfunctions of the Schrodinger equation for the pseudo-Coulomb potential plus a new improved ring-shaped potential within the framework of cosmic string space-time using the generalized parametric Nikiforov-Uvarov method were obtained.
Abstract: In this paper, we obtain the bound state energy eigenvalues and the corresponding eigenfunctions of the Schrodinger equation for the pseudo-Coulomb potential plus a new improved ring-shaped potential within the framework of cosmic string space–time using the generalized parametric Nikiforov–Uvarov method. Our results are in good agreement with other works in the cosmic string space–time and reduced to those in the Minkowski space–time when α = 1.
TL;DR: In this paper, the motion equations of matter in a gravitational field, acceleration field, pressure field, and other fields are considered based on the field theory, and simple formulas in simple formulas are derived.
Abstract: The motion equations of matter in a gravitational field, acceleration field, pressure field, and other fields are considered based on the field theory. This enables us to derive simple formulas in ...
TL;DR: In this paper, a monomer and homopolymer of benzyl methacrylate (BzMA) was synthesized and investigated based on density functional theory (DFT) and Hartree-Fock (HF) methods.
Abstract: Until now, a number of new polymers have been discovered with the aid of experimental and computational molecular approaches and indicated to have potential applications. All the computational molecular approaches provide information helpful to further study. So, monomer and homopolymer of benzyl methacrylate (BzMA), which is a popular methacrylate ester monomer, were synthesized and investigated based on density functional theory (DFT) and Hartree–Fock (HF) methods. The monomer and homopolymer were characterized by FTIR, 1H, and 13C NMR techniques. The molecular geometry, geometrical parameters, Mulliken atomic charges, and vibrational frequencies of BzMA monomer and homopolymer (in dimer form) were calculated by using the DFT and HF methods with 6-31G (d, p) as basis set. The molecular electrostatic potential maps and molecular orbitals properties of monomer and homopolymer were calculated using the 6-31G (d, p) basis set of theories. Besides, 1H and 13C chemical shifts were calculated by the gauge–incl...
TL;DR: In this article, the Sturm-Liouville eigenvalue problem was used to analyze the properties of holographic s-wave superconductors with exponential nonlinear (EN) electrodynamics in the background of Schwarzschild anti-de Sitter black holes.
Abstract: Based on the Sturm–Liouville eigenvalue problem, we analytically study several properties of holographic s-wave superconductors with exponential nonlinear (EN) electrodynamics in the background of Schwarzschild anti-de Sitter black holes. We assume the probe limit in which the scalar and gauge fields do not back react on the background metric. We show that for this system, one can still obtain an analytical relation between the critical temperature and the charge density. Interestingly enough, we find that EN electrodynamics decreases the critical temperature, Tc, of the holographic superconductors compared to the linear Maxwell field. This implies that the nonlinear electrodynamics make the condensation harder. The analytical results obtained in this paper are in good agreement with the existing numerical results. We also compute the critical exponent near the critical temperature and find out that it is still 1/2, which seems to be a universal value in mean field theory.
TL;DR: In this paper, the classical Pound-Rebka (P-R) result is furnished within the framework of Yarman-Arik-Kholmetskii (YARK) gravitation theory.
Abstract: We herein show that the classical Pound–Rebka (P-R) result is furnished within the framework of Yarman–Arik–Kholmetskii gravitation theory, which we will call YARK in short, in terms of the energy ...
TL;DR: In this article, the implications of the gravitational framework of the YARK (abbreviated from Yarman-Arik-Kholmetskii) approach with respect to super-massive celesti are analyzed.
Abstract: We continue to analyze the implications of the gravitational framework of our theoretical approach, christened YARK (abbreviated from Yarman–Arik–Kholmetskii), with respect to super-massive celesti...
TL;DR: In this paper, anomalous gravitational bending of gamma rays using the gravitational framework of Yarman's approach, abbreviated hereinafter as "YARK" from the initials of the co-authors to designate their teamwork.
Abstract: We predict anomalous gravitational bending of gamma rays using the gravitational framework of Yarman’s approach, abbreviated hereinafter as “YARK” from the initials of the co-authors to designate their teamwork. In contrast to the metric layout of the general theory of relativity (GTR), YARK theory is founded directly on the energy conservation law pertaining to interaction between masses. Despite the fact that predictions made respectively by GTR and YARK regarding cornerstone astrophysical observations appear remarkably identical to each other, the philosophies behind them are irreconcilably different. To test which theory comes closer to the reality, one should propose ways to distinguish their success at the experimental level. Note that bending of light in GTR represents a purely metric effect, which cannot depend on the energy of photons, whereas YARK conceptually allows the deflection of photons across a gravitational environment contingent upon either their wave-like or corpuscular-like behavior. ...
TL;DR: In this article, the authors describe the development and field test of the Laboratory Data Analysis Instrument (LDAI), aimed at diagnosing first-year students' understanding of data analysis procedures.
Abstract: This paper describes the development and field test of the Laboratory Data Analysis Instrument (LDAI), aimed at diagnosing first-year students’ understanding of data analysis procedures. The design...
TL;DR: In this article, a rotating warped anti-de Sitter black hole in 2+1 dimensions (WAdS3 BH) was studied in detail and the quantum tunneling approach with the Hamilton-Jacobi method was applied in the Proca equation, and the radial function yielded the tunneling rate of the outgoing particles.
Abstract: Hawking radiation of massive vector particles from a rotating warped anti-de Sitter black hole in 2+1 dimensions (WAdS3 BH) is studied in detail. The quantum tunneling approach with the Hamilton–Jacobi method is applied in the Proca equation, and we show that the radial function yields the tunneling rate of the outgoing particles. Comparing the result obtained with the Boltzmann factor, we satisfactorily reproduce the Hawking temperature of the WAdS3 BH.
TL;DR: In this paper, the authors discuss the mixed convective peristaltic flow of shear thinning hyperbolic tangent fluid under the effects of nanoparticles in a curved channel.
Abstract: The aim of the present analysis is to discuss the mixed convective peristaltic flow of shear thinning hyperbolic tangent fluid under the effects of nanoparticles in a curved channel. The model considered for the nanofluid is to analyze the effects of Brownian motion and thermophoresis parameter. The problem is formulated under the assumptions of long wavelength and low Reynolds number and then solved analytically using the homotopy perturbation method (HPM). The substantial features of related parameters are examined by sketching graphs. The most important observation of the analysis is that the velocity profiles are not symmetric about the central line of the curved channel.