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Nonlinear fractional-order differential equations: New closed-form traveling-wave solutions Open Phys. (IF 1.9) Pub Date : 2024-03-27 Mashael M. AlBaidani, Umair Ali, Abdul Hamid Ganie
The fractional-order differential equations (FO-DEs) faithfully capture both physical and biological phenomena making them useful for describing nature. This work presents the stable and more effective closed-form traveling-wave solutions for the well-known nonlinear space–time fractional-order Burgers equation and Lonngren-wave equation with additional terms using the exp ( − Φ ( ξ ) ) (-\Phi (\xi
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Application of conserved quantities using the formal Lagrangian of a nonlinear integro partial differential equation through optimal system of one-dimensional subalgebras in physics and engineering Open Phys. (IF 1.9) Pub Date : 2024-03-26 Oke Davies Adeyemo, Chaudry Masood Khalique
This research article analytically investigates a soliton equation of high dimensions, particularly with applications, and precisely in the fields of physical sciences and engineering. The soliton equation of high dimensions, particularly with applications, and precisely in the fields of physical sciences along with engineering, is examined with a view to securing various pertinent results of interest
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Soliton, quasi-soliton, and their interaction solutions of a nonlinear (2 + 1)-dimensional ZK–mZK–BBM equation for gravity waves Open Phys. (IF 1.9) Pub Date : 2024-03-23 Chunxia Wang, Xiaojun Yin, Na Cao, Liyang Xu, Shuting Bai
The ZK–mZK–BBM equation plays a crucial role in actually depicting the gravity water waves with the long wave region. In this article, the bilinear forms of the (2 + 1)-dimensional ZK–mZK–BBM equation were derived using variable transformation. Then, the multiple soliton solutions of the ZK–mZK–BBM equation are obtained by bilinear forms and symbolic computation. Under complex conjugate transformations
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Pulsed excitation of a quantum oscillator: A model accounting for damping Open Phys. (IF 1.9) Pub Date : 2024-03-21 Valeriy Astapenko, Timur Bergaliyev, Sergey Sakhno
This article proposes a model that accounts for damping of a quantum oscillator (QO) during pulsed excitation. Our model is based on the Schwinger formula, which calculates oscillator’s excitation probability through the energy of an associated classical damped oscillator. We utilize this model to describe the influence of damping on temporal and spectral dependences of QO excitation, induced by electromagnetic
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Model of conversion of flow from confined to unconfined aquifers with stochastic approach Open Phys. (IF 1.9) Pub Date : 2024-03-20 Makosha Ishmaeline Charlotte Morakaladi, Abdon Atangana
This work deals with the conversion of flow from confined to unconfined aquifers, a real-world problem that has attracted the attention of several authors. We have introduced a piecewise modified mathematical model where the first part deals with the flow within a confined system, and the second part deals with the flow within an unconfined system. In the unconfined part, we added the randomness to
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Study of fractional variable-order lymphatic filariasis infection model Open Phys. (IF 1.9) Pub Date : 2024-03-20 Mdi Begum Jeelani, Ghaliah Alhamzi, Mian Bahadur Zada, Muhammad Hassan
Variable-order derivatives are the natural extension of ordinary as well as of fractional-order differentiations and integration, respectively. Numerous suggestions for fractional variable-order operators have been made in the literature over time. Therefore, this is the moment to shine a light on the variable-order fractional calculus, due to the fact that it accurately describes the mathematical
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Microscopic seepage simulation of gas and water in shale pores and slits based on VOF Open Phys. (IF 1.9) Pub Date : 2024-03-19 Benqiang Wang, Denglin Han, Wei Lin, Xin Nie, Chenchen Wang, Jizhen Zhang
The microscopic pore-fracture structure and wettability have a significant influence on the two-phase seepage of shale gas and water. Due to the limitation of experimental conditions, the seepage patterns of gas and water in shale pores and slits under different wetting conditions have not been clarified yet. In this study, the three-dimensional digital rock models of shale inorganic pores, organic
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Analysis of the heat transfer enhancement in water-based micropolar hybrid nanofluid flow over a vertical flat surface Open Phys. (IF 1.9) Pub Date : 2024-03-16 Ebrahem A. Algehyne, Showkat Ahmad Lone, Anwar Saeed, Gabriella Bognár
This article presented micropolar hybrid nanofluid flow comprising copper and alumina nanoparticles over a flat sheet. The mixed convection phenomenon is studied under the effect of gravity. Some additional forces such as magnetic field, thermal radiation, Eckert number, heat source, and thermal slip condition are adopted in this analysis. The leading equations are transformed into dimensionless format
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Thermal transport energy performance on tangent hyperbolic hybrid nanofluids and their implementation in concentrated solar aircraft wings Open Phys. (IF 1.9) Pub Date : 2024-03-14 Adebowale Martins Obalalu, Umair Khan, Olalekan Adebayo Olayemi, Aurang Zaib, Anuar Ishak, El-Sayed M. Sherif
The primary heat source from the sunlight is solar energy (SE), which is used in photovoltaic (PV) panels, solar power plates, PV, streetlights, and solar-based hybrid nanocomposites. Currently, research is focused on analyzing and improving the efficiency of SE, particularly for powering aircraft, by combining solar power with nanotechnology advancements. As such, this study focuses on examining concentrated
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Convective flow of a magnetohydrodynamic second-grade fluid past a stretching surface with Cattaneo–Christov heat and mass flux model Open Phys. (IF 1.9) Pub Date : 2024-03-12 Humaira Yasmin, Sana Shahab, Showkat Ahmad Lone, Zehba Raizah, Anwar Saeed
This research delves into dynamics of magnetohydrodynamic second-grade fluid flow influenced by the presence of gyrotactic microorganisms on a stretching sheet. The study takes into account various factors such as thermal radiation, chemical reactivity, and activation energy, all of which contribute to the complex behavior of fluid flow in this system. The interaction between the magnetic field and
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Stability analysis and numerical results for some schemes discretising 2D nonconstant coefficient advection–diffusion equations Open Phys. (IF 1.9) Pub Date : 2024-03-12 Appanah Rao Appadu, Hagos Hailu Gidey
We solve two numerical experiments described by 2D nonconstant coefficient advection–diffusion equations with specified initial and boundary conditions. Three finite difference methods, namely Lax–Wendroff, Du-Fort–Frankel and a nonstandard finite difference scheme, are derived and used to solve the two problems, whereby only the first problem has an exact solution. Stability analysis is performed
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Optimized framework numerical solution for swirling hybrid nanofluid flow with silver/gold nanoparticles on a stretching cylinder with heat source/sink and reactive agents Open Phys. (IF 1.9) Pub Date : 2024-03-12 Humaira Yasmin, Showkat Ahmad Lone, Ali M. Mahnashi, Waleed Hamali, M. D. Shamshuddin, Anwar Saeed
The heat and mass transportation for nanofluid across a swirling cylinder under the actions of magnetic effects and Cattaneo–Christov heat flux is reported in the current analysis. The objective of this study is to examine the energy and mass transmissions through hybrid nanofluid under the influence of heat source/sink and reactive species. The hybrid nanoliquid has been prepared by the dispersion
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Stability enhancement of Al2O3, ZnO, and TiO2 binary nanofluids for heat transfer applications Open Phys. (IF 1.9) Pub Date : 2024-03-05 Ans Ahmed Memon, Laveet Kumar, Abdul Ghafoor Memon, Khanji Harijan, Zafar Said
Primary goal of this research is to enhance stability of nanofluids which is vital for maintaining consistent thermophysical properties during various applications. Nanofluid stability is essential for obtaining the uniform thermophysical properties during its application. X-ray diffraction and zeta potential were performed to characterize three nanoparticles, namely TiO2, Al2O3, and ZnO. Experimental
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Chaotic control problem of BEC system based on Hartree–Fock mean field theory Open Phys. (IF 1.9) Pub Date : 2024-03-01 Yang Shen, Meng Xu
Due to the difficulty of studying nonlinear quantum systems and the unique composition of Bose–Einstein condensate (BEC) systems, BECs face significant difficulties in solving dynamic analysis and chaotic control problems. Therefore, Hartree–Fock mean field theory is introduced to study the chaotic characteristics, control, and synchronization issues of BEC systems loaded on optical lattices. First
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Numerical study on flow and heat transfer performance of a spiral-wound heat exchanger for natural gas Open Phys. (IF 1.9) Pub Date : 2024-02-28 Wang Ya-bin, Ma Yang-fan, Zhang Qian, Zhou Yan, Ma Ting, Shi Yu, Zeng Min
The spiral-wound heat exchanger is a key equipment in the liquefied natural gas application, but the flow and heat transfer mechanisms remain unclarified. In this study, a three-dimensional numerical model is created, focusing on exploring the impact of four crucial structural parameters on the flow and heat transfer performance of natural gas, including the external diameter of tubes, the diameter
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Bayesian estimation of equipment reliability with normal-type life distribution based on multiple batch tests Open Phys. (IF 1.9) Pub Date : 2024-02-28 Haobang Liu, Tao Hu, Tong Chen, Minggui Li, Kai Du
The test of new equipment is usually carried out in multiple batches according to the task schedule and test results. Constrained by the test environment, cost, and other factors, the amount of reliability test data in each batch is relatively limited, which brings difficulties to the accurate equipment reliability estimation work. For the reliability simulation tests conducted before each batch tests
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Dynamic properties of the multimalware attacks in wireless sensor networks: Fractional derivative analysis of wireless sensor networks Open Phys. (IF 1.9) Pub Date : 2024-02-26 Hassan Tahir, Anwarud Din, Kamal Shah, Maggie Aphane, Thabet Abdeljawad
Due to inherent operating constraints, wireless sensor networks (WSNs) need help assuring network security. This problem is caused by worms entering the networks, which can spread uncontrollably to nearby nodes from a single node infected with computer viruses, worms, trojans, and other malicious software, which can compromise the network’s integrity and functionality. This article discusses a fractional
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Enhanced heat transfer and fluid motion in 3D nanofluid with anisotropic slip and magnetic field Open Phys. (IF 1.9) Pub Date : 2024-02-23 Shuguang Li, Nainaru Tarakaramu, Muhammad Ijaz Khan, Narsu Sivakumar, Panyam Venkata Satya Narayana, Sherzod Abdullaev, Nissren Tamam, Sayed M. Eldin
A mathematical model is envisaged that discusses the motion of 3D nanofluids (NFs) with anisotropic slip influence magnetic field past a stretching sheet. The heat transportation phenomenon is analysed by melting effect, heat generation, and chemical reaction. The main motivation of this study is to analyse the behaviour of liquid motion and heat transfer (HT) of NFs because this study has huge applications
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Numerical analysis of thermophoretic particle deposition on 3D Casson nanofluid: Artificial neural networks-based Levenberg–Marquardt algorithm Open Phys. (IF 1.9) Pub Date : 2024-02-23 Amna Khan, Fahad Aljuaydi, Zeeshan Khan, Saeed Islam
The aim of this research is to provide a new computer-assisted approach for predicting thermophoresis particle decomposition on three-dimensional Casson nanofluid flow that passed over a stretched surface (thermophoresis particle decomposition on three-dimensional Casson nanofluid flow; TPD-CNF). In order to understand the flow behavior of nanofluid flow model, an optimized Levenberg–Marquardt learning
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Analyzing fuzzy fractional Degasperis–Procesi and Camassa–Holm equations with the Atangana–Baleanu operator Open Phys. (IF 1.9) Pub Date : 2024-02-23 Azzh Saad Alshehry, Humaira Yasmin, Manzoor Ali Shah, Rasool Shah
This article presents a new approach for solving the fuzzy fractional Degasperis–Procesi (FFDP) and Camassa–Holm equations using the iterative transform method (ITM). The fractional Degasperis–Procesi (DP) and Camassa–Holm equations are extended from the classical DP and Camassa–Holm equations by incorporating fuzzy sets and fractional derivatives. The ITM is a powerful technique widely used for solving
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Optoelectronic–thermomagnetic effect of a microelongated non-local rotating semiconductor heated by pulsed laser with varying thermal conductivity Open Phys. (IF 1.9) Pub Date : 2024-02-22 Merfat H. Raddadi, Shreen El-Sapa, Mahjoub A. Elamin, Houda Chtioui, Riadh Chteoui, Alaa A. El-Bary, Khaled Lotfy
In this study, we investigated the effect of a rotation field and magnetic field on a homogeneous photo-thermoelastic nonlocal material and how its thermal conductivity changes as a result of a linearly distributed thermal load. The thermal conductivity of an interior particle is supposed to increase linearly with temperature under the impact of laser pulses. Microelastic (microelements distribution)
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Thermal proficiency of magnetized and radiative cross-ternary hybrid nanofluid flow induced by a vertical cylinder Open Phys. (IF 1.9) Pub Date : 2024-02-22 Wael Al-Kouz, Wahib Owhaib, Assad Ayub, Basma Souayeh, Montasir Hader, Raad Z. Homod, Taseer Muhammad, Anuar Ishak, Umair Khan
The ternary hybrid nanofluid leads to a significant enhancement in thermal performance applications like heat transfer in automotive engines, solar thermal energy storage, aerospace, and electronic cooling. The present study investigates the thermal characteristics of a ternary hybrid magnetized and radiated cross nanofluid comprising Al2O3, TiO2, and Ag nanoparticles in water subjected to combined
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A numerical analysis of the blood-based Casson hybrid nanofluid flow past a convectively heated surface embedded in a porous medium Open Phys. (IF 1.9) Pub Date : 2024-02-16 Humaira Yasmin, Ali M. Mahnashi, Waleed Hamali, Showkat Ahmad Lone, Zehba Raizah, Anwar Saeed
The analysis of the fluid flow with the energy transfer across a stretching sheet has several applications in manufacturing developments such as wire drawing, hot rolling, metal extrusion, continuous casting, paper production, and glass fiber fabrication. The current examination presents the hybrid nanofluid flow past a convectively heated permeable sheet. The ferrous oxide (Fe3O4) and Gold (Au) nanoparticles
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The electrically conducting water-based nanofluid flow containing titanium and aluminum alloys over a rotating disk surface with nonlinear thermal radiation: A numerical analysis Open Phys. (IF 1.9) Pub Date : 2024-02-13 Humaira Yasmin, Showkat Ahmad Lone, Ali M. Mahnashi, Waleed Hamali, Zehba Raizah, Anwar Saeed
A metallic alloy is a combination of two or more elements, often called a compound or a solution. Steel is largely composed of carbon, a nonmetal, but alloys are often made up of metals. In this article, the authors have explored the electrically conducting water-based viscous nanofluids flow past a rotating disk surface. The nanofluids flow is composed of titanium and aluminum alloys where water is
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Growth, characterization, and anti-bacterial activity of l-methionine supplemented with sulphamic acid single crystals Open Phys. (IF 1.9) Pub Date : 2024-02-12 Friedelin R. S. Vithel, Ramadoss Manimekalai, Sreekrishnan Rajammal Cynthia, Vediyappan Govindan, M. Ijaz Khan, Sherzod Abdullaev, Salman A. AlQahtani, Nouf F. AlQahtani
Sulphamic acid (SA) crystals supplemented with l-methionine (LM) were grown at moderate temperatures using a slow evaporation procedure. The powder XRD pattern showed that LM supplemented with SA (LMSA) crystals have an orthorhombic crystal structure. The FTIR studies confirmed the presence of various vibrational modes. Using a UV-Vis spectrometer, the transmittance of LMSA in the UV and visible range
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Heat transfer characteristics of cobalt ferrite nanoparticles scattered in sodium alginate-based non-Newtonian nanofluid over a stretching/shrinking horizontal plane surface Open Phys. (IF 1.9) Pub Date : 2024-01-31 Samia Elattar, Umair Khan, Aurang Zaib, Anuar Ishak, Norah Alwadai, Ahmed M. Abed
Magnetite and cobalt ferrite (CoFe2O4) nanoparticles are frequently utilized in several applications, including magnetic drug delivery, hyperthermia, magnetic resonance imaging, etc. In the current investigation, the magnetohydrodynamic three-dimensional heat transfer (HT) flow induced by a non-Newtonian Eyring–Powell fluid is incorporated by a carrier sodium alginate (NAC6H7O6)-based CoFe2O4 nanoparticles
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Mononuclear nanofluids undergoing convective heating across a stretching sheet and undergoing MHD flow in three dimensions: Potential industrial applications Open Phys. (IF 1.9) Pub Date : 2024-01-26 Saima Noor, Azzh Saad Alshehry
The main goal of this study is to analyze the nanofluid boundary layer as it flows over a bidirectional, exponentially extending sheet in both convective and magnetic field environments. The mathematical model considers the results of Brownian motion and particle movement caused by a temperature gradient. Using appropriate similarity transformations, governing partial differential equations are converted
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Numerical analysis of dengue transmission model using Caputo–Fabrizio fractional derivative Open Phys. (IF 1.9) Pub Date : 2024-01-25 Azzh Saad Alshehry, Humaira Yasmin, Ahmed A. Khammash, Rasool Shah
This study demonstrates the use of fractional calculus in the field of epidemiology, specifically in relation to dengue illness. Using noninteger order integrals and derivatives, a novel model is created to examine the impact of temperature on the transmission of the vector–host disease, dengue. A comprehensive strategy is proposed and illustrated, drawing inspiration from the first dengue epidemic
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Numerical solutions of generalized Atangana–Baleanu time-fractional FitzHugh–Nagumo equation using cubic B-spline functions Open Phys. (IF 1.9) Pub Date : 2024-01-25 Afzaal Mubashir Hayat, Muhammad Abbas, Farah Aini Abdullah, Tahir Nazir, Hamed Ould Sidi, Homan Emadifar, Amani Alruwaili
The generalization of the classical FitzHugh–Nagumo model provides a more accurate description of the physical phenomena of neurons by incorporating both nonlinearity and fractional derivatives. In this article, we present a numerical method for solving the time-fractional FitzHugh–Nagumo equation (TFFNE) in the sense of the Atangana–Baleanu fractional derivative using B-spline functions. The proposed
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High-speed mid-infrared Mach–Zehnder electro-optical modulators in lithium niobate thin film on sapphire Open Phys. (IF 1.9) Pub Date : 2024-01-24 Huangpu Han, Bingxi Xiang, Jiali Zhang, Zhixian Wei, Yunpeng Jiang
In this study, high-speed mid-infrared Mach–Zehnder electro-optical modulators in x-cut lithium niobate (LN) thin film on sapphire were designed, simulated, and analyzed. The main optical parameters of three types of Mach–Zehnder modulators (MZMs) (residual LN with thickness of 0, 0.5, and 1 μm) were simulated and calculated, namely, the single-mode conditions, bending loss, separation distance between
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Homogeneous–heterogeneous reactions in the colloidal investigation of Casson fluid Open Phys. (IF 1.9) Pub Date : 2024-01-22 Saima Noor
With particular attention to the effects of an electromagnetically induced resistive force on homogeneous–heterogeneous processes and the related homogeneous heat effects, the Casson fluid flow towards a stretching sheet at the magnetohydrodynamic stagnation point is investigated in detail. In this situation, the Laplace approach helps decipher the subtleties of the first-order kinetics governing the
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Numerical study of flow and heat transfer in the channel of panel-type radiator with semi-detached inclined trapezoidal wing vortex generators Open Phys. (IF 1.9) Pub Date : 2024-01-19 Wenrong Si, Chenzhao Fu, Yue Tian, Jie Chen, Peng Yuan, Zexuan Huang, Jian Yang
To improve heat dissipation performance of panel-type radiator for transformer, this study investigated the flow and heat transfer characteristics of semi-detached inclined trapezoidal wing vortex generator (SDITW) in a closed channel on the air-side of the radiator. The SDITW was compared with the inclined delta wing (IDW) and inclined trapezoidal wing (ITW) channels. The effects of SDITW relative
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Examining the role of activation energy and convective boundary conditions in nanofluid behavior of Couette-Poiseuille flow Open Phys. (IF 1.9) Pub Date : 2024-01-16 Abdulrahman B. M. Alzahrani
This work investigates the behavior of a nanofluid in a horizontal channel under advection boundary conditions within the domain of magnetohydrodynamic radiative Couette-Poiseuille flow. We utilize the Haar wavelet collocation method (HWCM) to investigate the effects of energy activation. This research relies on the mathematical model introduced by Buongiorno, which effectively captures the flow dynamics
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Electrokinetic energy conversion of nanofluids in porous microtubes with Green’s function Open Phys. (IF 1.9) Pub Date : 2024-01-13 Xue Gao, Guangpu Zhao, Ying Zhang, Yue Zhang
Micro-devices fabrication has led to extensive scientific research on microfluidics and microelectromechanical systems. These devices are used for a wide range of technological applications, but research on microfluidic devices for nanofluids is relatively scarce. In response to this problem, the electrokinetic energy conversion (EKEC) efficiency of nanofluids is provided under the coupling effect
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Weak beat frequency extraction method for photon Doppler signal with low signal-to-noise ratio Open Phys. (IF 1.9) Pub Date : 2024-01-13 Ya-Nan Sun, Shen-Jiang Wu, Guo-Sheng Qin, Ke-Xuan Wang, Jia Wang, Dang-Juan Li, Yu-Qi Du
In the window function spectrum of the low signal-to-noise ratio photon Doppler signal after the short-time Fourier transform, the weak beat frequency cannot be obtained by extracting the maximum amplitude spectrum frequency of each window because the amplitude of the noise spectrum exceeds the weak beat frequency. In this article, the value of the beat frequency is first estimated by the Kalman filter
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Investigation of nanomaterials in flow of non-Newtonian liquid toward a stretchable surface Open Phys. (IF 1.9) Pub Date : 2024-01-11 Lamia Abu El Maati, M. Ijaz Khan, Shaimaa A. M. Abdelmohsen, Badriah M. Alotaibi
This article features the buoyancy-driven electro-magnetohydrodynamic micropolar nanomaterial flow subjected to motile microorganisms. The flow is engendered via an elongating surface, and the energy relation includes heat source generation, magnetohydrodynamics, and radiation. A Buongiorno nanomaterial model (which includes thermophoretic and Brownian diffusions) together with chemical reaction and
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Different lump k-soliton solutions to (2+1)-dimensional KdV system using Hirota binary Bell polynomials Open Phys. (IF 1.9) Pub Date : 2024-01-08 Xingxing Wu, Jalil Manafian, Gurpreet Singh, Baharak Eslami, Abdullah Aldurayhim, Noor Alhuda Mohammad Ali khalil, Ahmed Alawadi
In this article, the (2+1)-dimensional KdV equation by Hirota’s bilinear scheme is studied. Besides, the binary bell polynomials and then the bilinear form is created. In addition, an interaction lump with k k -soliton solutions of the addressed system with known coefficients is presented. With the assistance of the stated methodology, a cloaked form of an analytical solution is discovered in expressions
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Micropolar flow and heat transfer within a permeable channel using the successive linearization method Open Phys. (IF 1.9) Pub Date : 2024-01-08 Mohammed Abdalbagi
This research investigates the flow of micropolar fluid and heat transfer through a permeable channel using the successive linearization method (SLM). The study considers parameters such as coupling, spin-gradient viscosity, and micro-inertia density. The partial differential equations involved are transformed into a system of ordinary differential equations using similarity variables. The resulting
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Harmonic current suppression method of virtual DC motor based on fuzzy sliding mode Open Phys. (IF 1.9) Pub Date : 2024-01-04 Lisha Shang, Yajuan Jia, Liming Zheng, Gaoshang Xie
In the operation of power grid, the low frequency subharmonics in power lines are easy to cause harmonic current problems. A harmonic current suppression method is constructed based on fuzzy sliding mode and virtual DC motor (VDC). First, the adaptive linear network is introduced to compare and analyze the output value and the actual value in the power line, and the possible harmonic current is obtained
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Investigation of different structures of screw extruders on the flow in direct ink writing SiC slurry based on LBM Open Phys. (IF 1.9) Pub Date : 2024-01-04 Xu Deng, Weiwei Wu, Shuang Ding, Yanjun Zhang, Binquan Shi
Direct ink writing provides a new method for ceramic material forming. The single-screw extruder is used here to extrude viscous SiC slurry. Because the flow mechanism of ceramic slurry in the slurry direct writing extrusion device is unclear, lattice Boltzmann method (LBM) is used to analyze the flow process of ceramic slurry in the extrusion device. In this study, three different types of special-shaped
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Application of low-altitude wind shear recognition algorithm and laser wind radar in aviation meteorological services Open Phys. (IF 1.9) Pub Date : 2024-01-04 Ting Xu, Xiaoling Ma, Qionghua Li, Yan Lu
The rapid development of the aviation industry has attracted great attention to aviation safety, and the identification and early warning of low-level wind shear have become crucial. Therefore, it is also necessary to improve the performance of laser wind radar technology and achieve accurate recognition of low-level wind shear. In this regard, this study is based on laser wind radar technology and
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Spectral uncertainty analysis of grassland and its camouflage materials based on land-based hyperspectral images Open Phys. (IF 1.9) Pub Date : 2024-01-04 Jiale Zhao, Bing Zhou, Guanglong Wang, Jie Liu, Jiaju Ying, Qi Chen, Runze Zhao
Spectral uncertainty is one of the most prominent spectral characteristics of hyperspectral images. Compared to the process of remote sensing hyperspectral imaging, hyperspectral imaging under land-based imaging conditions has the characteristics of variable detection directions, random imaging times, and complex environmental conditions, resulting in increased spectral uncertainty of targets in land-based
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Heat treatment and tensile test of 3D-printed parts manufactured at different build orientations Open Phys. (IF 1.9) Pub Date : 2024-01-02 Ming-Lang Tseng, Annson Thampy, Emad A. A. Ismail, Fuad A. Awwad, Nima E. Gorji
Additive manufacturing has been gaining popularity in many industries and has made significant growth over the last 5 years. Many industries use additive manufacturing three-dimensional (3D) printing to produce complex shape objects that is a challenge to be manufactured by casting or conventional methods. In this study, the impact of heat treatment and build orientation is examined for the mechanical
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Non-similar modeling and numerical simulations of microploar hybrid nanofluid adjacent to isothermal sphere Open Phys. (IF 1.9) Pub Date : 2024-01-02 A. Abbasi, W. Farooq, M. Gul, Manish Gupta, Dilsora Abduvalieva, Farwa Asmat, Salman A. AlQahtani
In today’s era of rapid technological development, there is an increasing requirement for high-functioning investiture solutions, working liquids and materials that can satisfy the benchmarks of energy efficacy. Specifically, within the domain of heat transference-based industries, an essential challenge is to fabricate a cooling medium that can effectually cope with dissipation of substantial heat
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Numerical investigation of the flow characteristics involving dissipation and slip effects in a convectively nanofluid within a porous medium Open Phys. (IF 1.9) Pub Date : 2024-01-02 Mohammed M. Babatin, Mohamed M. Khader, Ahmed M. Megahed
The aim of the present research is to discuss the numerical aspects of heat-mass transfer in power-law nanofluids on an stretched surface. In addition, the novelty in this research lies in its thorough exploration and incorporation of parameters such as viscous dissipation, slip velocity, and convective boundary conditions into the analysis. This distinguishes the study from previous work and underscores
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Joint optimization of two-dimensional warranty period and maintenance strategy considering availability and cost constraints Open Phys. (IF 1.9) Pub Date : 2024-01-02 Junkai Cheng
Warranty can improve customer satisfaction and increase product sales, but it will bring additional economic burden to manufacturers, so making reasonable warranty decisions is particularly important. The current research focuses more on the interests of manufacturers, while there is less attention paid to indicators that consumers are concerned about, such as system availability. To solve this problem
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Application of IoT network for marine wildlife surveillance Open Phys. (IF 1.9) Pub Date : 2023-12-29 Arun Kumar, Sumit Chakravarthy, Aziz Nanthaamornphong
Every day of the week, wireless communication is almost all around us. The Internet of Things (IoT) is a standard protocol used to describe the rapidly advancing technology in which almost every electronic device is or may be connected to the Internet. These electronic gadgets constantly provide data signals to the gateways, which satellites such as those in Low Earth Orbit may transmit. Because of
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A case study on the environmental and economic impact of photovoltaic systems in wastewater treatment plants Open Phys. (IF 1.9) Pub Date : 2023-12-28 Dounia Bellar, Oumaima Choukai, Mustapha Tahaikt, Azzeddine El Midaoui, Yassine Ezaier, Muhammad Ijaz Khan, Manish Gupta, Salman A. AlQahtani, Mohammad Yusuf
Ibn Tofail University of Kenitra, Morocco, is committed to a national policy of control and mobilization of water resources and the adoption of a planning approach and integrated water management. Within this framework, the university, which contains 40,000 students, produces a quantity of wastewater of 200 m3 per day. After treatment, the water is used for watering the university’s green space. The
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Extracting solitary solutions of the nonlinear Kaup–Kupershmidt (KK) equation by analytical method Open Phys. (IF 1.9) Pub Date : 2023-12-20 Mohammed Shaaf Alharthi
Finding analytical solutions for nonlinear partial differential equations is physically meaningful. The Kaup-Kupershmidt (KK) equation is studied in this article. The KK equation is of fifth order, such that several solitary solutions are obtained. In this article, however, the modified auxiliary function approach is applied to this model to find solitary solutions. These solutions are written in terms
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Power Topp–Leone exponential negative family of distributions with numerical illustrations to engineering and biological data Open Phys. (IF 1.9) Pub Date : 2023-12-14 Mintodê Nicodème Atchadé, Théophile Otodji, Aliou Moussa Djibril, Melchior N’bouké
This article puts forth a novel category of probability distributions obtained from the Topp–Leone distribution, the inverse- K K exponential distribution, and the power functions. To obtain this new family, we used the original cumulative distribution functions. After introducing this new family, we gave the motivations that led us to this end and the basis of the new family obtained, followed by
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Coupled heat and mass transfer mathematical study for lubricated non-Newtonian nanomaterial conveying oblique stagnation point flow: A comparison of viscous and viscoelastic nanofluid model Open Phys. (IF 1.9) Pub Date : 2023-12-11 Shuguang Li, Waseh Farooq, Aamar Abbasi, Sami Ullah Khan, Maimona Rafiq, Muhammad Ijaz Khan, Barno Sayfutdinovna Abdullaeva, Fuad A. Awwad, Emad A. A. Ismail
The lubrication phenomenon plays a novel role in the chemical industries, manufacturing processes, extrusion systems, thermal engineering, petroleum industries, soil sciences, etc. Owing to such motivated applications, the aim of the current work is to predict the assessment of heat and mass transfer analysis for non-Newtonian nanomaterial impinging over a lubricated surface. The flow is subject to
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HAM simulation for bioconvective magnetohydrodynamic flow of Walters-B fluid containing nanoparticles and microorganisms past a stretching sheet with velocity slip and convective conditions Open Phys. (IF 1.9) Pub Date : 2023-12-07 Humaira Yasmin, Ali M. Mahnashi, Waleed Hamali, Showkat Ahmad Lone, Anwar Saeed
In recent years, many numerical and analytical attempts have been reported by the researchers to explore the technological and industrial processes. Thermal management, hybrid-powered engine, microelectronics, heat exchanger, solar systems, energy generators are some recent applications of the heat and mass transfer flow. In this article, we have theoretically analyzed the convection flow of Walters-B
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Axisymmetric stagnation-point flow of non-Newtonian nanomaterial and heat transport over a lubricated surface: Hybrid homotopy analysis method simulations Open Phys. (IF 1.9) Pub Date : 2023-12-06 Manzoor Ahmad, Vediyappan Govindan, Sami Ullah Khan, Haewon Byeon, Muhammad Taj, Nadia Batool, Dilsora Abduvalieva, Fuad A. Awwad, Emad A. A. Ismail
The heat transfer phenomenon associated with the lubricated surfaces offers applications in the manufacturing processes, thermal systems, industrial systems, and engineering phenomenon. It is a well-established fact that improvement in heat transfer is recently successfully claimed with the interaction of nanoparticles. Following such motivation in mind, the prime objective of current continuation
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A homotopy perturbation method with Elzaki transformation for solving the fractional Biswas–Milovic model Open Phys. (IF 1.9) Pub Date : 2023-12-06 Azzh Saad Alshehry, Humaira Yasmin, Rasool Shah
In this research, we use the homotopy perturbation method (HPM) combined with the Elzaki transform to investigate the fractional Biswas–Milovic equation (BME) within the framework of the Caputo operator. The fractional BME is a significant mathematical model with applications in various scientific and engineering fields, including physics, biology, and chemistry. However, its fractional nature introduces
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Heat transfer performance of magnetohydrodynamic multiphase nanofluid flow of Cu–Al2O3/H2O over a stretching cylinder Open Phys. (IF 1.9) Pub Date : 2023-12-06 Azzh Saad Alshehry, Humaira Yasmin, Abdul Hamid Ganie, Rasool Shah
This study examines the heat transfer properties of a recently created hybrid nanofluid in contrast to a traditional nanofluid. The aim is to improve the transfer of heat in the flow of the boundary layer by employing this novel hybrid nanofluid. Our study investigates the impact of the Lorentz force on a three-dimensional stretched surface. We utilize a new model that incorporates thermo-physical
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ΛCDM and the principle of equivalence Open Phys. (IF 1.9) Pub Date : 2023-12-06 Fulvio Melia
There is growing evidence that the net acceleration of the Universe over its entire history is essentially zero. This finding is critical in light of a recent examination of the Friedmann–Lemaître–Robertson–Walker (FLRW) metric using the local flatness theorem (LFT) in general relativity, which argues that FLRW is consistent with the principle of equivalence only if the total energy density ρ \rho
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Numerical simulation and analysis of Airy's-type equation Open Phys. (IF 1.9) Pub Date : 2023-12-02 Aisha A. Alderremy, Humaira Yasmin, Rasool Shah, Ali M. Mahnashi, Shaban Aly
In this article, we propose a novel new iteration method and homotopy perturbation method (HPM) along with the Elzaki transform to compute the analytical and semi-analytical approximations of fractional Airy’s-type partial differential equations (FAPDEs) subjected to specific initial conditions. A convergent series solution form with easily commutable coefficients is used to examine and compare the
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Thermal radiation and heat generation on three-dimensional Casson fluid motion via porous stretching surface with variable thermal conductivity Open Phys. (IF 1.9) Pub Date : 2023-11-30 Nainaru Tarakaramu, Bandi Reddappa, Gajjala Radha, Dilsora Abduvalieva, Narsu Sivakumar, Fuad A. Awwad, Emad A. A. Ismail, Kotte Amaranadha Reddy
The impact of variable thermal conductivity plays a key role in the analysis of fluid mechanics. The applications of liquid are significant in nuclear reactors, automobiles, technical and manufacturing industry, electronic appliances, and so on. The novelty of this analysis is to exhibited the variable thermal conductivity in motion of Casson liquid via porous stretching sheet. In energy equation is
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Bifurcation, chaotic behavior, and traveling wave solution of stochastic coupled Konno–Oono equation with multiplicative noise in the Stratonovich sense Open Phys. (IF 1.9) Pub Date : 2023-11-28 Yong Tang, Zhao Li
The main aim of this article is to focus on the dynamics and traveling wave solution of stochastic coupled Konno–Oono equation with multiplicative noise in the Stratonovich sense. First, the considered model is converted to the nonlinear ordinary differential equations by using traveling wave transformation. Secondly, two-dimensional phase portrait of the nonlinear ordinary differential equation and
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High-sensitivity on-chip temperature sensor based on cascaded microring resonators Open Phys. (IF 1.9) Pub Date : 2023-11-24 Yunying Shi, Lei Cheng, Yunfei Yi, Qiming Wu, Zhixun Liang, Cong Hu
This article proposes an on-chip optical temperature sensor based on a cascaded microring resonator, which is composed of a reference ring and a sensing ring cascaded with different temperature sensitivities and free spectral ranges. By changing the temperature of the sensing window environment, the thermal optical effect of the waveguide causes a change in the refractive index of the waveguide, which