Results 51 to 60 of about 31,268 (166)

Design, Preparation, and Structural Control Mechanism of High Performance Water Splitting NiFeCu Catalyst under Magnetic Field

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
By utilizing magnetic field‐assisted electrodeposition to synthesize a Cu‐rich dendritic NiFeCu electrocatalyst, this study significantly improves the efficiency of water splitting. The research not only introduces an innovative strategy for designing highly active bifunctional catalysts but also pioneers a new direction for the application of magnetic
Zhong Wang, Siyuan Zhang, Xuemin Wang, Chuhan Wang, Weibin Chen, Guojian Li, Xiaoming Liu, Qiang Wang, Shuang Yuan   +8 more
wiley   +1 more source

Amplification of MHD waves in swirling astrophysical flows

, 2003
Recently it was found that helical magnetized flows efficiently amplify Alfv\'en waves (Rogava et al. 2003, A&A, v.399, p.421). This robust and manifold nonmodal effect was found to involve regimes of transient algebraic growth (for purely ejectional ...
A. D. Rogava, Argentina, Bacciotti, Balbus, Blandford, Bodo, Cassen, Chagelishvili, Craik, Criminale, Davis, Ferreira, G. Bodo, Hujeirat, Lagnado, Lery, Mahajan, Pike, Poedts, Rogava, Rogava, Rogava, Ryutova, S. Massaglia, Shibata, Shu, Tagger, Tagger, Trefethen, Varnière, Z. Osmanov   +30 more
core   +1 more source

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

Heat Transfer, EarlyView.
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

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

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

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

ON THE INFLUENCE OF MHD TURBULENCE ON THE STRUCTURE OF THE RADIOGALAXY LOBES

Odessa Astronomical Publications, 2018
There is considered the evolution of the shape for the radio galaxy lobes of FRI and FRII types from the point of view on changing the configuration of large-scale structure of magnetic field, and energy transport in the turbulent MHD waves.
N. O. Tsvyk
doaj   +1 more source

Nonlinear Alfvén wave dynamics at a 2D magnetic null point: ponderomotive force [PDF]

, 2013
Context: In the linear, β = 0 MHD regime, the transient properties of magnetohydrodynamic (MHD) waves in the vicinity of 2D null points are well known.
Alfvén, Antiochos, Antiochos, Arber, Banerjee, Beveridge, Botha, Brown, Close, De Moortel, Goossens, J. A. McLaughlin, J. O. Thurgood, Longcope, McLaughlin, McLaughlin, McLaughlin, McLaughlin, McLaughlin, McLaughlin, McLaughlin, McLaughlin, McLaughlin, McLaughlin, Nakariakov, Nakariakov, Nakariakov, Parker, Ruderman, Régnier, Threlfall, Thurgood, Tsiklauri, Verwichte   +33 more
core   +2 more sources

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

MHD Waves and Coronal Seismology: an overview of recent results

, 2012
Recent observations have revealed that MHD waves and oscillations are ubiquitous in the solar atmosphere, with a wide range of periods. We give a brief review of some aspects of MHD waves and coronal seismology which have recently been the focus of ...
Uchida Y., Wang T., Zajtsev V. V.
core   +2 more sources