Results 81 to 90 of about 33,372 (204)

Improved Myocardial Sodium Quantification at 7 T Using Interleaved 23Na/1H pTx MRI With Motion and Anatomy‐Based B1 Correction

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To improve accuracy and repeatability of myocardial 23Na quantification in cardiac MRI at 7 T by combining retrospective respiratory and cardiac motion correction with a novel anatomy‐based B1 bias field correction. Methods In this study, a dual‐nuclear interleaved 23Na/1H MRI sequence at 7 T was applied.
Laurent Ruck, Nico Egger, Benedikt Zobler, Judith Schirmer, Sophia Nagelstraßer, Andreas Bitz, Tanja Platt, Simon Konstandin, Christoph Kopp, Michael Uder, Armin Michael Nagel   +10 more
wiley   +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

Smoothed Particle Magnetohydrodynamics II. Variational principles and variable smoothing length terms

, 2003
In this paper we show how a Lagrangian variational principle can be used to derive the SPMHD (smoothed particle magnetohydrodynamics) equations for ideal MHD.
Balsara, Benz, Bonet, Brio, D. J. Price, Dai, Dai, Dellar, Field, Henyey, Hernquist, J. J. Monaghan, Janhunen, Monaghan, Monaghan, Monaghan, Monaghan, Morris, Nelson, Nelson, Newcomb, Oppeneer, Phillips, Price, Serna, Springel   +25 more
core   +1 more source

Status and Prospect of Secondary Battery Technologies in Space Applications: Challenges and the Future

Batteries &Supercaps, Volume 9, Issue 5, May 2026.
Lithium‐ion batteries used in space applications are exposed to extreme conditions, including radiation, vacuum, wide temperature fluctuations, and long storage times, all of which accelerate degradation. This review article summarizes the main degradation mechanisms affecting battery performance in space environments, including capacity fade ...
Xunkai Chen, Kelsey B. Hatzell
wiley   +1 more source

Electromagnetic Field Effects in Dialysis Membranes

Engineering Reports, Volume 8, Issue 5, May 2026.
Hemodialysis efficiency strongly depends on membrane permeability, solute transport, and blood flow characteristics. External electromagnetic fields (magnetic and electric) can alter fluid dynamics, ionic motion, and nanoparticle‐assisted transport mechanisms within dialysis membranes.
Binyam Zigta
wiley   +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

Constrained Hyperbolic Divergence Cleaning for Smoothed Particle Magnetohydrodynamics

, 2012
We present a constrained formulation of Dedner et al's hyperbolic/parabolic divergence cleaning scheme for enforcing the \nabla\dot B = 0 constraint in Smoothed Particle Magnetohydrodynamics (SPMHD) simulations.
Barnes, Benz, Brackbill, Børve, Børve, Bürzle, Cummins, Daniel J. Price, Dedner, Dellar, Dolag, Evans, Fromang, Gaburov, Janhunen, Kotarba, Kotarba, Kotarba, Londrillo, Mignone, Monaghan, Monaghan, Orszag, Pakmor, Powell, Price, Price, Price, Price, Price, Price, Price, Price, Price, Price, Price, Price, Stern, Stone, Terrence S. Tricco, Tóth, Wang   +41 more
core   +1 more source

Impact Plasma Amplification of the Ancient Mercury Magnetic Field

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Spacecraft measurements of Mercury indicate that it has a core dynamo with a surface field of 200–800 nT. These data also indicate that the northern hemisphere crust contains remanent magnetization likely produced by an ancient magnetic field. The inferred magnetization intensity is consistent with a wide range of paleofield strengths (0.2–50 ...
Isaac S. Narrett, Rona Oran, Yuxi Chen, Katarina Miljković, Gábor Tóth, Catherine L. Johnson, Benjamin P. Weiss   +6 more
wiley   +1 more source

Magnetohydrodynamic experiments on cosmic magnetic fields

, 2008
It is widely known that cosmic magnetic fields, i.e. the fields of planets, stars, and galaxies, are produced by the hydromagnetic dynamo effect in moving electrically conducting fluids.
Alemany, Aubert, Aubert, Avalos-Zuñiga, Babcock, Balbus, Balbus, Balbus, Beck, Berhanu, Bevir, Blackman, Bourgoin, Bourgoin, Braithwaite, Brandenburg, Brandenburg, Brito, Brunhes, Bullard, Busse, Busse, Busse, Busse, Busse, Cardin, Carlson, Chandrasekhar, Christensen, Christensen, Christensen, Christensen, Colgate, Colgate, Colgate, Collins, Connerney, Cowling, Denisov, Dobler, Dormy, Dubrulle, Dudley, Dziourkevitch, Fauve, Fearn, Fischer, Forest, Forest, Frick, Fuchs, Gailitis, Gailitis, Gailitis, Gailitis, Gailitis, Gailitis, Gailitis, Gailitis, Gailitis, Gailitis, Gailitis, Gailitis, Gailitis, Gailitis, Gailitis, Gans, Gekelman, Giesecke, Giesecke, Gissinger, Glassmeier, Glassmeier, Glatzmaier, Govoni, Grasso, Guermond, Hale, Harder, Hawley, Hawley, Herzenberg, Hollerbach, Hollerbach, Hollerbach, Hoyng, Inglis, Iskakov, Ivers, Ji, Ji, Ji, Ji, Ji, Kageyama, Kaiser, Kenjereš, Kenjereš, Kenjereš, Khalzov, Khalzov, Kirillov, Kirko, Kitchatinov, Kivelson, Knobloch, Kono, Kouveliotou, Krasnov, Krechetnikov, Kronberg, Kuang, Kulsrud, Laguerre, Laguerre, Lakhin, Larmor, Lathrop, Laval, Lehnert, Liu, Liu, Liu, Liu, Lord Rayleigh, Lowes, Lowes, Léora, Léorat, Marié, Marié, Marié, Monchaux, Moresco, Morris, Müller, Müller, Müller, Müller, Nakajima, Nataf, Ness, Nornberg, Nornberg, Ogilvie, Ossendrijver, Parker, Peffley, Peffley, Pekeris, Pessah, Pierson, Plunian, Ponomarenko, Priede, Pétrélis, Pétrélis, Pétrélis, Ravelet, Reighard, Rincon, Roach, Roberts, Roberts, Roberts, Roberts, Rädler, Rädler, Rädler, Rädler, Rädler, Rädler, Rüdiger, Rüdiger, Rüdiger, Rüdiger, Schekochihin, Schekochihin, Schmitt, Schrinner, Schrinner, Schultz-Grunow, Shakura, Shew, Siemens, Sisan, Sisan, Southwood, Spence, Spence, Spruit, Steenbeck, Steenbeck, Stefani, Stefani, Stefani, Stefani, Stefani, Stefani, Stefani, Stefani, Stellmach, Stellmach, Stepanov, Stevenson, Stevenson, Stieglitz, Szklarski, Szklarski, Tayler, Tilgner, Tilgner, Tilgner, Tilgner, Tilgner, Tilgner, Turner, Vandakurov, Velikhov, Velikhov, Verma, Volk, Wang, Wendt, Wheatstone, Wicht, Wilkinson, Winterberg, Wosnitza, Xu, Xu, Xu, Zandbergen   +232 more
core   +2 more sources

Magnetopause Boundary Layers in Low Mach CME‐Driven Storm Environment

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Magnetopause boundary layers (BLs) play an important role mediating plasma and energy exchange between the solar wind/magnetosheath and Earth's magnetosphere. Energy exchange across the magnetopause is enhanced during storms, yet little work has been done investigating BLs during storms.
Rachel C. Rice, Li‐Jen Chen, Tai Phan, Brandon L. Burkholder, Stephen A. Fuselier, Roman Gomez, Cristian P. Ferradas, Jason M. H. Beedle, Megha Pandya   +8 more
wiley   +1 more source