Results 51 to 60 of about 32,327 (219)

The Combined Effects of Variable Viscosity and Thermal Conductivity of An Unsteady Casson Fluid Flow Along a Vertical Porous Channel With Convective Cooling Walls, Using the Bivariate Spectral Local Linearization Method

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT This study examines the combined impact of different thermal conductivity and viscosity on unsteady non‐Newtonian Casson fluid flow of incompressible, electrical conductivity in a porous vertical channel with convective cooling walls, uniform magnetic field, and constant pressure gradient.
A. S. Adeyemo, Precious Sibanda, S. P. Goqo   +2 more
wiley   +1 more source

Photospheric magnetic vortex structures [PDF]

Annales Geophysicae, 2011
Using direct numerical magneto-hydrodynamic (MHD) simulations, we demonstrate the evidence of two physically different types of vortex motions in the solar photosphere.
S. Shelyag, V. Fedun, F. P. Keenan, R. Erdélyi, M. Mathioudakis   +4 more
doaj   +1 more source

Analysis of Magnetic Fields in Inertial Alfven Wave Collisions

, 2014
Turbulence in astrophysical and space plasmas is dominated by the nonlinear interaction of counterpropagating Alfven waves. Most Alfven wave turbulence theories have been based on ideal plasma models, such as incompressible MHD, for Alfven waves at large
Carter, Troy A., Dorfman, Seth, Drake, Dereth J., Howes, Gregory G., Kletzing, Craig A., Schroeder, James W. R., Shanken, Brian C., Skiff, Frederick   +7 more
core   +1 more source

Machine learning‐based predictive models versus traditional risk scores in hemodialysis patients with comorbid urolithiasis

Precision Medical Sciences, EarlyView.
Machine learning‐based predictive models outperform traditional risk scores in hemodialysis patients with comorbid urolithiasis by capturing nonlinear, dialysis‐specific interactions. These approaches enable more accurate prediction of stone recurrence, sepsis, hospitalization, and mortality, supporting personalized risk stratification and precision ...
Dipal Chaulagain, Muhammad Riaz, Mirza Muhammad Hadeed Khawar, Jawad Hameed, Malik Sohail Riaz   +4 more
wiley   +1 more source

Longitudinal oscillations in density stratified and expanding solar waveguides

, 2012
Waves and oscillations can provide vital information about the internal structure of waveguides they propagate in. Here, we analytically investigate the effects of density and magnetic stratification on linear longitudinal magnetohydrodynamic (MHD) waves.
Andries, De Pontieu, DeForest, Fujimura, G. Verth, Kliem, Lin, Luna-Cardozo, M. Luna-Cardozo, Mariska, Mariska, Mathioudakis, Mendoza-Briceño, Mendoza-Briceño, Polyanin, R. Erdélyi, Ruderman, Sigalotti, Tsuneta, Uchida, Verth, Verth, Wang   +22 more
core   +1 more source

Actuation Strategies for Underwater Jet‐Propelled Soft Robots

Journal of Field Robotics, EarlyView.
ABSTRACT This review article examines jet‐propulsion mechanisms in underwater soft robotic systems, focusing exclusively on physically fabricated and experimentally validated robots. Covering research published from 2013 to 2025, this study classifies and evaluates jet‐propulsion robots based on their actuation mechanisms.
Angel Kitone, Mohammed Anteet, Pawandeep S. Matharu, Yara Almubarak   +3 more
wiley   +1 more source

Instabilities, Wave Emission, and Energy Transport along Bursty Bulk Flows and Supra-arcade Downflows: Differences, Similarities, and Effects on the Surrounding Regions

The Astrophysical Journal
We examine the stability conditions for two posteruptive phenomena in the solar–terrestrial environment, namely, bursty bulk flows (BBFs) in the Earth’s magnetotail and supra-arcade downflows (SADs) in the solar corona.
Isabelle A. LaBelle, Hava Turkakin, Robert Orellano, Ian R. Mann, Robert I. Rankin, Kyle Ferguson   +5 more
doaj   +1 more source

A Two-Fluid Method for Ambipolar Diffusion

, 2008
We present a semi-implicit method for isothermal two-fluid ion-neutral ambipolar drift that is second-order accurate in space and time. The method has been implemented in the RIEMANN code for astrophysical fluid dynamics.
Balsara, Balsara, Balsara, Balsara, Balsara, Balsara, Balsara, Balsara, Basu, Blitz, Ciolek, Ciolek, David A. Tilley, Dinshaw S. Balsara, Draine, Draine, Falgarone, Falle, Fatuzzo, Indebetouw, Jiang, Jijina, Kudoh, Langer, Larson, Li, Li, Li, Lim, Mac Low, Mestel, Motte, Mouschovias, Mouschovias, Nakamura, O'Sullivan, O'Sullivan, Oishi, Pudritz, Roberge, Shu, Smith, Tóth, Tóth, Wardle, Zweibel   +45 more
core   +1 more source

Direct Numerical Simulation of Magnetohydrodynamic Slip‐Flow Past a Stretching Surface Using Physics‐Informed Neural Network

Heat Transfer, Volume 55, Issue 3, Page 1674-1682, May 2026.
ABSTRACT Traditional numerical methods, such as finite difference methods (FDM), finite element methods (FEM), and spectral methods, often face meshing challenges and high computational cost for solving nonlinear coupled differential equations. Machine learning techniques, specifically Physics‐informed machine learning, address these obstacles by ...
Ahmad, Feroz Soomro, Husna Zafar
wiley   +1 more source

Turbulent acceleration of electrons by large-amplitude magnetohydrodynamic waves in solar flares

Astronomy & Astrophysics
Context. Solar flares appear as a sudden local enhancement of the emission of electromagnetic waves from the radio to the γ-ray range on the Sun. This radiation is primarily generated by energetic electrons. In addition, these electrons play an important
Mann G., Warmuth A., Schuller F.
doaj   +1 more source