Showing papers in "Modern Physics Letters B in 2020"
TL;DR: In this article, the Biswas-Arshed (BA) model was applied to birefringent fibers for chirp-free solitons with the aid of sub-ordinary differential equations (ODE) method.
Abstract: In this paper, we study Biswas–Arshed (BA) model in birefringent fibers for chirp-free solitons (dromions) with the aid of sub-ordinary differential equations (ODE) method. The BA model studies the...
107 citations
TL;DR: In this article, the collective influence of hydrodynamic slip, radiative heat flux and cross-diffusion effects on transport phenomena in ferric oxide (Fe3O4-water) magnetic nanofluid flow from a nonlinear stretching porous sheet in porous media is analyzed.
Abstract: Increasingly sophisticated techniques are being developed for the manufacture of functional nanomaterials. A growing interest is also developing in magnetic nanofluid coatings which contain magnetite nanoparticles suspended in a base fluid and are responsive to external magnetic fields. These nanomaterials are “smart” and their synthesis features high-temperature environments in which radiative heat transfer is present. Diffusion processes in the extruded nanomaterial sheet also feature Soret and Dufour (cross) diffusion effects. Filtration media are also utilized to control the heat, mass and momentum characteristics of extruded nanomaterials and porous media impedance effects arise. Magnetite nanofluids have also been shown to exhibit hydrodynamic wall slip which can arise due to non-adherence of the nanofluid to the boundary. Motivated by the multi-physical nature of magnetic nanomaterial manufacturing transport phenomena, in this paper, we develop a mathematical model to analyze the collective influence of hydrodynamic slip, radiative heat flux and cross-diffusion effects on transport phenomena in ferric oxide (Fe3O4-water) magnetic nanofluid flow from a nonlinear stretching porous sheet in porous media. Hydrodynamic slip is included. Porous media drag is simulated with the Darcy model. Viscous magnetohydrodynamic theory is used to simulate Lorentzian magnetic drag effects. The Rosseland diffusion flux model is employed for thermal radiative effects. A set of appropriate similarity transformation variables are deployed to convert the original partial differential boundary value problem into an ordinary differential boundary value problem. The numerical solution of the coupled, multi-degree, nonlinear problem is achieved with an efficient shooting technique in MATLAB symbolic software. The physical influences of Hartmann (magnetic) number, Prandtl number, Richardson number, Soret (thermo-diffusive) number, permeability parameter, concentration buoyancy ratio, radiation parameter, Dufour (diffuso-thermal) parameter, momentum slip parameter and Schmidt number on transport characteristics (e.g. velocity, nanoparticle concentration and temperature profiles) are investigated, visualized and presented graphically. Flow deceleration is induced with increasing Hartmann number and wall slip, whereas flow acceleration is generated with greater Richardson number and buoyancy ratio parameter. Temperatures are elevated with increasing Dufour number and radiative parameter. Concentration magnitudes are enhanced with Soret number, whereas they are depleted with greater Schmidt number. Validation of the MATLAB computations with special cases of the general model is included. Further validation with generalized differential quadrature (GDQ) is also included.
51 citations
TL;DR: In this article, the authors studied the optical soliton wave solutions of the model of sub-10-fs-pulse propagation by the implementation of the modified Khater method.
Abstract: This research paper studies the optical soliton wave solutions of the model of sub-10-fs-pulse propagation by the implementation of the modified Khater method. This model describes the dynamics of ...
46 citations
TL;DR: In this article, an alternative method has been studied for traveling wave solutions of mathematical models which have an important place in applied sciences and balance term is not integer. With thi...
Abstract: In this paper, an alternative method has been studied for traveling wave solutions of mathematical models which have an important place in applied sciences and balance term is not integer. With thi...
44 citations
TL;DR: In this article, the authors deal with finding new complex solitons to the perturbed nonlinear Schrodinger model with the help of an analytical method using several computation programs.
Abstract: This work deals with finding new complex solitons to the perturbed nonlinear Schrodinger model with the help of an analytical method. Using several computation programs, we gain entirely new solito...
42 citations
TL;DR: In this paper, the spatially modulated two-component GP system with Rabi coupling in a Bose-Einstein condensate consisting of the two hyperfine states was investigated.
Abstract: Investigation in this paper is the spatially modulated two-component GP system with Rabi coupling in a Bose–Einstein condensate consisting of the two hyperfine states. Based on the Kadomtsev–Petvia...
41 citations
TL;DR: In this article, the exp(−φ(ξ))expansion, the sine sine expansion, is used to model nonlinear Schrodinger equations in plasma physics, optics, fluid and atmospheric theory of profound water waves and so on.
Abstract: Nonlinear Schrodinger equations can model nonlinear waves in plasma physics, optics, fluid and atmospheric theory of profound water waves and so on. In this work, the exp(−φ(ξ))-expansion, the sine...
35 citations
TL;DR: In this article, the authors presented exponential function solutions of the (3+1)-dimensional space-time fractional modified KdV-Zakharov-Kuznetsov (mKdV/ZK) method.
Abstract: This paper presents some exponential function solutions of the (3+1)-dimensional space-time fractional modified KdV–Zakharov–Kuznetsov (mKdV–ZK). The improved Bernoulli sub-equation function method...
33 citations
TL;DR: This research presents a novel architecture based on neural model that combines reinforcement learning with reinforcement learning to solve the challenge of integrating image recognition and natural language processing to solve language classification problems.
Abstract: Machine learning (ML) architectures based on neural model have garnered considerable attention in the field of language classification. Code-mixing is a common phenomenon on social networking sites...
32 citations
TL;DR: This research presents a novel and scalable approaches called "SmartLabeling", which combines crowd-sourcing and analytics to solve the challenge of integrating image recognition and natural language processing to improve the quality of image captioning.
Abstract: Image captioning is a multidisciplinary artificial intelligence (AI) research task that has captures the interest of both image and natural language processing experts. Image captioning is a comple...
31 citations
TL;DR: In this paper, the authors obtained new exact solutions of the (2+1)-dimensional Date-Jimbo-Kashiwara-Miwa (DJKM) equation using the Lie symmetry method.
Abstract: This paper is devoted to obtaining some new types of exact solutions of the (2+1)-dimensional Date–Jimbo–Kashiwara–Miwa (DJKM) equation utilizing the Lie symmetry method. All the Lie symmetries, in...
TL;DR: The survival and occurrence of chaos are much dependent on the intrinsic nonlinearity and parameters region for deterministic nonlinear systems, which are often represented by ordinary differential systems as mentioned in this paper...
Abstract: The survival and occurrence of chaos are much dependent on the intrinsic nonlinearity and parameters region for deterministic nonlinear systems, which are often represented by ordinary differential...
TL;DR: In this paper, new solitary waves for the Klein-Gordon-Zakharov equations were studied and the obtained results were diverse and some specific ones emerge as dark, bright and bell-shape.
Abstract: This paper studies new solitary waves for the Klein–Gordon–Zakharov equations. The obtained results are diverse and some specific ones emerge as dark, bright and bell-shape. The two integration sch...
TL;DR: In this article, a 3D perfect metamaterial absorber (PMA) for temperature sensing in terahertz region is presented, which consists of a three-dimensional metal resonator structure array and a conti...
Abstract: We present a three-dimensional (3D) perfect metamaterial absorber (PMA) for temperature sensing application in terahertz region. The PMA consists of a 3D metal resonator structure array and a conti...
TL;DR: In this article, a direct algebraic method based on some particular Riccati equations was used to find exact solutions to a Kaup-Newell model equation, and several new solutions which represe...
Abstract: In this paper, we use the new defined direct algebraic method based on some particular Riccati equations to find exact solutions to a Kaup–Newell model equation. Several new solutions which represe...
TL;DR: In this paper, the authors extracted novel analytical and semi-analytical wave solutions of the longitudinal wave equation in a magneto-electro-elastic circular rod by using the modified Khater method as o...
Abstract: This research paper extracts novel analytical and semi-analytical wave solutions of the longitudinal wave equation in a magneto-electro-elastic circular rod by using the modified Khater method as o...
TL;DR: In this paper, a variable-coefficient KdV equation in a fluid, plasma, anharmonic crystal, blood vessel, circulatory system, shallow-water tunnel, lake or relaxation inhomogeneous medium is discussed.
Abstract: In this paper, a variable-coefficient KdV equation in a fluid, plasma, anharmonic crystal, blood vessel, circulatory system, shallow-water tunnel, lake or relaxation inhomogeneous medium is discuss...
TL;DR: In this paper, a hybrid numerical method combining cosine and sine wavelets and Green's function approach is created to acquire the arrangements of fractional Lane-Emden Problem.
Abstract: In this research, a hybrid numerical method combining cosine and sine (CAS) wavelets and Green’s function approach is created to acquire the arrangements of fractional Lane–Emden Problem. The sugge...
TL;DR: In this article, the authors presented an exact solution of the (2+1) dimensions Kundu-Mukherjee-Naskar (KMN) equation using a newly developed technique, namely, the new extended direct algebra.
Abstract: In this work, the researchers for computing an exact solution of the (2+1) dimensions Kundu–Mukherjee–Naskar (KMN) equation used a newly developed technique, namely, the new extended direct algebra...
TL;DR: In this paper, the crystal structure and thermal properties of AgCuS compound were investigated at high temperature ranges and it was found that the crystal structures of these compounds have orthorhombic symmetry.
Abstract: The crystal structure and thermal properties of AgCuS compound were investigated at high temperature ranges. It was found that the crystal structure of these compounds has orthorhombic symmetry wit...
TL;DR: This paper shows a novel quantum computing model that solves quantum computing problems based on the degree of entanglement and shows two main theorems: the first theorem shows the quantum circuit tumbling down a chiral staircase.
Abstract: This paper shows a novel quantum computing model that solves quantum computing problems based on the degree of entanglement. We show two main theorems: the first theorem shows the quantum circuit t...
TL;DR: The metal halide-perovskite solar cells have managed to attain soaring heights in power conversion efficiency in the past decade, rising from 3.8% to around 24% in 2019 as discussed by the authors.
Abstract: Metal halide-perovskite solar cells have managed to attain soaring heights in power conversion efficiency in the past decade, rising from 3.8% to around 24% in 2019. Formal lead-based perovskites h...
TL;DR: The invariant subspace method (ISM) is a powerful tool for investigating analytical solutions to fractional differential-difference equations (FDDEs) as discussed by the authors, and it can be used to solve FDDEs.
Abstract: The invariant subspace method (ISM) is a powerful tool for investigating analytical solutions to fractional differential–difference equations (FDDEs). Based on previous work by other people, we app...
TL;DR: Fingerprint recognition systems are susceptible to artificial spoof fingerprint attacks, like molds manufactured from polymer, gelatin or Play-Doh, according to researchers at the Massachusetts Institute of Technology.
Abstract: Fingerprint recognition systems are susceptible to artificial spoof fingerprint attacks, like molds manufactured from polymer, gelatin or Play-Doh. Presentation attack is an open issue for fingerpr...
TL;DR: The variational quantum eigensolver has been proposed as a low-depth quantum circuit that can be employed to examine strongly correlated systems on today's noisy intermediate-scale quantum computer as mentioned in this paper.
Abstract: The variational quantum eigensolver has been proposed as a low-depth quantum circuit that can be employed to examine strongly correlated systems on today’s noisy intermediate-scale quantum computer...
TL;DR: The influence of Molybdenum diselenide transition metal dichalcogenide material (p-type MoSe2 TMDC) as an interfacial layer between the ultra-thin Cu (In, Ga)Se2 (CIGS) absorber layer, with thickne...
Abstract: The influence of Molybdenum diselenide transition metal dichalcogenide material (p-type MoSe2 TMDC) as an interfacial layer between the ultra-thin Cu (In, Ga)Se2 (CIGS) absorber layer, with thickne...
TL;DR: In this article, the Kundu-Mukherjee-Naskar model was used to reveal vital optical solitons in (2+1) dimensions, such as singular soliton, dark soliton and combined dark-singular soliton.
Abstract: The Kundu–Mukherjee–Naskar model is studied to reveal some vital optical solitons in (2+1) dimensions. To obtain singular soliton, dark soliton, combined dark-singular soliton and other hyperbolic ...
TL;DR: In this paper, a (2 + 1)-dimensional variable-coefficient nonlinear Schrodinger equation is introduced to the study of an optical fiber, where t is the temporal variab...
Abstract: In this paper, under investigation is a (2 + 1)-dimensional variable-coefficient nonlinear Schrodinger equation, which is introduced to the study of an optical fiber, where t is the temporal variab...
TL;DR: Quasi-harmonic theory should not be considered a low-order theory of anharmonic effects in crystals, but should be recognized as an important effect separate from true anharmonicity as mentioned in this paper.
Abstract: “Quasi-harmonic” (QH) theory should not be considered a low-order theory of anharmonic effects in crystals, but should be recognized as an important effect separate from “true” anharmonicity. The o...
TL;DR: In this article, the temporal birefringent effects in the fibers change the crosstalk behaviors inside and between the fiber cores in the linear and non-linear optical power areas.
Abstract: Temporal birefringent effects in the fibers change the crosstalk behaviors inside and between the fiber cores in the linear and non-linear optical power areas. This paper studies a non-linear Schro...