Results 61 to 70 of about 74,903 (268)

Heat Load Mitigation Studies in the W7‐X Stellarator Experiment

Contributions to Plasma Physics, EarlyView.
ABSTRACT During the experiments at the stellarator Wendelstein 7‐X (W7‐X) with fully water‐cooled plasma‐facing components (PFC), including carbon‐fiber composite (CFC) divertor targets with a thermal load capability of 10 MW/m2, high performance was achieved.
Dirk Naujoks, Amit Kharwandikar, Jasper Dettmar, Michael Endler, Joris Fellinger, Yu Gao, Joachim Geiger, Marcin Jakubowski, Thomas Sieber, Sebastian Thiede, Christian Voß, W7‐X Team   +11 more
wiley   +1 more source

Dataset of human skin and fingernails images for non-invasive haemoglobin level assessment

Scientific Data
Anaemia, a decrease in total concentration of haemoglobin (Hb) in blood, affects substantial percentage of the population worldwide. Currently, the gold standard for determining the Hb level is the invasive analysis of venous blood.
Boris Yakimov, Kirill Buiankin, Georgy Denisenko, Ilia Bardadin, Oleg Pavlov, Yuliya Shitova, Alexey Yuriev, Lyudmila Pankratieva, Alexander Pukhov, Andrey Shkoda, Evgeny Shirshin   +10 more
doaj   +1 more source

An On-Orbit Dynamic Calibration Method for an MHD Micro-Angular Vibration Sensor Using a Laser Interferometer

Sensors, 2019
The magnetohydrodynamic (MHD) micro-angular vibration sensor is a significant component of the MHD Inertial Reference Unit (MIRU) and measures micro-amplitude and wide frequency angular vibration. The MHD micro-angular vibration sensor must be calibrated
Yingjie Wu, Xingfei Li, Fan Liu, Ganmin Xia   +3 more
doaj   +1 more source

Effect of Magnetic Islands on Neoclassical Heat Diffusivity in a Global Tokamak Simulation

Contributions to Plasma Physics, EarlyView.
ABSTRACT Resonant magnetic perturbations (RMPs) alter magnetic field topology via island formation and can modify core transport in toroidal fusion devices. Using the global gyrokinetic particle‐in‐cell code XGC‐S, originally developed for stellarator geometries, we quantify how island topology affects neoclassical heat transport in a circular tokamak ...
Joseph X. Li, Toseo Moritaka, Ryutaro Kanno, Gakushi Kawamura, Robert Hager, C.‐S. Chang   +5 more
wiley   +1 more source

"Una nueva época, un nuevo horizonte"

Materiales para la Historia del Deporte, 2007
Comenzando el nuevo siglo XXI, un grupo de profesionales de la educación física se reunieron con el objeto de indagar y profundizar en las raíces históricas de la actividad fisico-deportiva en Andalucía, coordinados por José Manuel Zapico, "alma mater ...
Juan Carlos Fernández Truan
doaj  

Generalized MHD equations

Journal of Differential Equations, 2003
The paper deals with the \(d\)-dimensional generalized MHD (GMHD) equations \[ \begin{aligned} &\partial_{t}u + u\cdot \nabla u =-\nabla P + b \cdot \nabla b - \nu (-\Delta)^{\alpha} u,\\ &\partial_{t}b + u \cdot \nabla b= b \cdot \nabla u - \eta (-\Delta)^{\beta} b, \end{aligned} \] where the fractional power \((-\Delta)^{\alpha}\) is defined via a ...
openaire   +1 more source

Incompressible MHD Turbulence [PDF]

Astrophysics and Space Science, 2001
AbstractThe inertial range of incompressible MHD turbulence is most conveniently described in terms of counter propagating waves. Shear Alfvén waves control the cascade dynamics. Slow waves play a passive role and adopt the spectrum set by the shear Alfvén waves.
openaire   +2 more sources

Magnetic Electrocatalysts Enabling a High‐Rate Capability in Lithium‐Oxygen Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study introduces zinc ferrite (ZnFe2O4) nanoparticles with tunable magnetic properties as bifunctional electrocatalysts for lithium‐oxygen batteries. Under an applied magnetic field, these catalysts significantly enhance oxygen reduction and evolution reactions by promoting spin‐aligned charge transfer and ion diffusion. The approach achieves high
Yimin Chen, Yuqing Miao, Min Hong, Xin Hu, Bilal Ahmad, John Bell, Baozhi Yu, Ying Ian Chen   +7 more
wiley   +1 more source

Multifluid equations for MHD

Journal of Geophysical Research: Space Physics
A set of MHD equations is developed for multiple ion species in the limit of small Larmor radius. The derivation proceeds to explicitly calculate the Lorentz force resulting from the small ion drift velocities. The net effect is that in this limit all the ions move perpendicular to the magnetic field with the same E×B speed, but are free-streaming ...
J. G. Lyon, V. G. Merkin, K. A. Sorathia, M. J. Wiltberger   +3 more
openaire   +1 more source

INITIAL EXPERIMENTAL TESTS ON SPACE TRIPS FACILITY OF THERMOACOUSTIC-TO-MHD ENERGY CONVERTER

, 2020
11th PAMIR International Conference on Fundamental and Applied MHD, Reims, FRANCE, JUL 01-05, 2019Thermoacoustic-to-MHD energy conversion is a potential key technology for energy production in deep Space, due to the absence of moving mechanical parts or ...
Alemany, A., Freibergs, J. E., Brekis, A.   +2 more
core   +1 more source