Results 11 to 20 of about 1,663 (71)
Annalen der Physik, Volume 535, Issue 12, December 2023., 2023 The authors review the connections existing, based on potential theory, between contact mechanics and equilibrium electrostatics. This little known correspondence is exploited so that problems scattered in many works can be easily solved by bringing to light their “duals” in elastic theory.
Josep Batle +2 more
wiley +1 more source
Cosmic Inflation and Genetic Algorithms
Fortschritte der Physik, Volume 71, Issue 1, January 2023., 2023 Abstract Large classes of standard single‐field slow‐roll inflationary models consistent with the required number of e‐folds, the current bounds on the spectral index of scalar perturbations, the tensor‐to‐scalar ratio, and the scale of inflation can be efficiently constructed using genetic algorithms.
Steve A. Abel +3 more
wiley +1 more source
Journal of Function Spaces, Volume 2023, Issue 1, 2023., 2023 In the present paper, a new efficient technique is described for solving nonlinear mixed partial integrodifferential equations with continuous kernels. Using the separation of variables, the nonlinear mixed partial integrodifferential equation is converted to a nonlinear Fredholm integral equation. Then, using different numerical methods, the Bernoulli
Abeer M. Al-Bugami +3 more
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Novel Explosive and Super Fractional Nonlinear Schrödinger Structures
Journal of Mathematics, Volume 2023, Issue 1, 2023., 2023 The fractional nonlinear Schrödinger equation solutions have been investigated via fraction space‐time derivative sense. We applied the unified technique for this model to extract new structures of waves. The fractional property structures were obtained from the model in form of hyperbolic, soliton, shock, explosive, superperiodic, and trigonometric ...
H. G. Abdelwahed +4 more
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A phase‐field based model for coupling two‐phase flow with the motion of immersed rigid bodies
International Journal for Numerical Methods in Engineering, Volume 123, Issue 16, Page 3757-3780, 30 August 2022., 2022 Abstract The interaction of immersed rigid bodies with two‐phase flow is of high interest in many applications. A model for the coupling of a Hohenberg–Halperin type model for two‐phase flow and a fictitious domain method for consideration of rigid bodies is introduced leading to a full multiphase‐field method to address the overall problem.
Martin Reder +3 more
wiley +1 more source
A New Global Ionospheric Electron Density Model Based on Grid Modeling Method
Space Weather, Volume 20, Issue 6, June 2022., 2022 Abstract Based on nearly 4.6 million radio occultation (RO) ionospheric profile data from Constellation Observing System for Meteorology, Ionosphere, and Climate satellites in 2006–2020, a global three‐dimensional ionospheric electron density model was constructed with a new concept.
Huijun Le +5 more
wiley +1 more source
A 3D Empirical Model of Electron Density Based on CSES Radio Occultation Measurements
Space Weather, Volume 20, Issue 5, May 2022., 2022 Abstract China Seismo‐Electromagnetic Satellite (CSES) was successfully launched in February 2018. About 280 thousand ionospheric radio occultation (RO) electron density profiles (EDP) have been accumulated till the end of 2020. The CSES is a Sun‐synchronous orbit satellite with descending and ascending nodes around 14:00 and 02:00 LT, respectively, at
He Huang +7 more
wiley +1 more source
Journal of Function Spaces, Volume 2022, Issue 1, 2022., 2022 This paper focuses on an efficient spline‐based numerical technique for numerically addressing a second‐order Volterra partial integrodifferential equation. The time derivative is discretized using a finite difference scheme, while the space derivative is approximated using the extended cubic B‐spline basis.
Reny George +3 more
wiley +1 more source
Journal of Function Spaces, Volume 2022, Issue 1, 2022., 2022 In this paper, we obtain the novel exact traveling wave solutions in the form of trigonometric, hyperbolic and exponential functions for the nonlinear time fractional generalized reaction Duffing model and density dependent fractional diffusion‐reaction equation in the sense of beta‐derivative by using three fertile methods, namely, Generalized tanh ...
Imran Siddique +5 more
wiley +1 more source
Mathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022 In this study, we used the newly established optimal approach, namely, optimal auxilary function method (OAFM) along with the Adams numerical solver technique in order to investigate the heat transfer between two permeable parallel plates of steady nanofluids (HTBTP‐SNFs) through Brownian and thermophoretic consequences.
Hakeem Ullah +5 more
wiley +1 more source