Results 41 to 50 of about 59,962 (177)
System Design Considerations for Magneto‐Electrocatalysis of the Oxygen Evolution Reaction
Small, EarlyView.Electrocatalytic water‐splitting can be controlled using a magnetic field. The commercial prospects are exciting, but the progress is stuck in the fundamental stage of research. Progress is stagnated by publications with conflicting results, incomplete analysis, and inconsistent experimental setups.
Dorottya Szalay +3 more
wiley +1 more source
The driving of turbulence in simulations of molecular cloud formation and evolution [PDF]
, 2017 Molecular clouds are to a great extent influenced by turbulent motions in the gas. Numerical and observational studies indicate that the star formation rate and efficiency crucially depend on the mixture of solenoidal and compressive modes in the turbulent acceleration field, which can be quantified by the turbulent driving parameter b.
arxiv +1 more source
Time-Dependent Dynamics of the Corona [PDF]
arXiv, 2023 We present in this Letter the first global comparison between traditional line-tied steady state magnetohydrodynamic models and a new, fully time-dependent thermodynamic magnetohydrodynamic simulation of the global corona. The maps are scaled to the approximate field distributions and magnitudes around solar minimum using the Lockheed Evolving Surface ...
arxiv
Magnetohydrodynamic turbulence in warped accretion discs [PDF]
, 2001 Warped, precessing accretion discs appear in a range of astrophysical systems, for instance the X-ray binary Her X-1 and in the active nucleus of NGC4258. In a warped accretion disc there are horizontal pressure gradients that drive an epicyclic motion.
arxiv +1 more source
High Voltage, EarlyView.Abstract Arc flashes pose significant hazards to personnel working with energised power lines due to their high thermal risk, quantified by incident energy (IE) in joules or calories per area. Accurate estimation of IE is crucial for ensuring safety. The most widely employed method for estimating IE from an arc flash is outlined in IEEE Std 1584‐2018 ...
Pedro O. Bacin +9 more
wiley +1 more source
High Voltage, EarlyView.Abstract Fast mechanical switches (FMSs) are critical components of DC circuit breakers (DCCBs), which require the switch action time to break to a sufficient distance within 3 ms in the DC line breaking scenario, while ensuring a long service life. The breaking mechanism significantly affects the current interruption capability of DCCBs. The operation
Puyi Cui +6 more
wiley +1 more source
Spectral Properties of Compressible Magnetohydrodynamic Turbulence from Numerical Simulations [PDF]
Astrophys.J. 590 (2003) 858-873, 2003 We analyze the spectral properties of driven, supersonic compressible magnetohydrodynamic (MHD) turbulence obtained via high-resolution numerical experiments, for application to understanding the dynamics of giant molecular clouds. Via angle-averaged power spectra, we characterize the transfer of energy from the intermediate, driving scales down to ...
arxiv +1 more source
Effects of the resonance modification by electron cyclotron current drive on the linear and nonlinear dynamics of energetic particle driven magnetohydrodynamics modes in Heliotron J [PDF]
, 2023 P. Adulsiriswad +12 more
openalex +1 more source
Observational Characteristics of Electron Distributions in the Martian Induced Magnetotail
Geophysical Research Letters, Volume 52, Issue 7, 16 April 2025.Abstract Mars's magnetotail represents a unique case within the solar system, embodying both intrinsic and induced magnetic fields. Yet, the electron dynamics within this region have remained largely unexplored. Utilizing nine years of electron and magnetic field data from the Mars Atmosphere and Volatile EvolutioN mission (MAVEN), we conducted a ...
Chi Zhang +10 more
wiley +1 more source
On the two-dimensional state in driven magnetohydrodynamic turbulence [PDF]
, 2010 The dynamics of the two-dimensional (2D) state in driven tridimensional (3D) incompressible magnetohydrodynamic turbulence is investigated through high-resolution direct numerical simulations and in the presence of an external magnetic field at various intensities.
arxiv +1 more source