Results 51 to 60 of about 384,338 (204)

Numerical Study of Radiative and Dissipative MHD Casson Nanofluid Over a Cone With High‐Order Chemical Reaction

open access: yesEngineering Reports, Volume 7, Issue 4, April 2025.
This study investigated the dissipative effects on time‐dependent Casson nanofluid motion over a cone, considering variable heat source/absorption and higher‐order reacting species. Water ethylene glycol was employed as the Casson base fluid. The proposed model has broad applicability across various scientific, engineering, and technological domains ...
L. Joseph Sademaki   +2 more
wiley   +1 more source

The Hidden Internal Flow Dynamics of Shear‐Thinning Magma in Dikes

open access: yesAGU Advances, Volume 6, Issue 2, April 2025.
Abstract The viscosity of magma has a first‐order control on the explosivity and hazards of a volcanic eruption, and the detection of diking within the subsurface may indicate an eruption is imminent. As magma approaches the surface it is highly likely it will have a non‐Newtonian shear‐thinning rheology (apparent viscosity decreases as shear rate ...
Janine L. Kavanagh   +3 more
wiley   +1 more source

Boosted dark matter from Centaurus A and its detection

open access: yesJournal of High Energy Physics
Dark matter can be boosted by high energy particles in astrophysical environments through elastic scattering. We study the production of boosted dark matter via scattering with electrons in the relativistic jet of the closest active galactic nucleus ...
Chen Xia, Chuan-Yang Xing, Yan-Hao Xu
doaj   +1 more source

High-energy Neutrino Emission Associated with GWs from Binary Black Hole Mergers in AGN Accretion Disks

open access: yesThe Astrophysical Journal Letters, 2023
The search for multimessenger signals of binary black hole (BBH) mergers is crucial to understanding the merger process of BBH and the relative astrophysical environment.
Zi-Hang Zhou, Kai Wang
doaj   +1 more source

High‐Speed Electron Flows in the Earth Magnetotail

open access: yesAGU Advances, Volume 6, Issue 2, April 2025.
Abstract High‐speed electron flows (HSEFs) play a crucial role in the energy dissipation and conversion processes within the terrestrial magnetosphere and can drive various types of plasma waves and instabilities, affecting the electron‐scale dynamics.
Huijie Liu   +20 more
wiley   +1 more source

Microphysical Plasma Relations from Special-relativistic Turbulence

open access: yesThe Astrophysical Journal, 2023
The microphysical, kinetic properties of astrophysical plasmas near accreting compact objects are still poorly understood. For instance, in modern general-relativistic magnetohydrodynamic simulations, the relation between the temperature of electrons T ...
Claudio Meringolo   +3 more
doaj   +1 more source

Falling Trend of Winter Lightning Over Western India and Its Possible Relation With Western Disturbances

open access: yesEarth and Space Science, Volume 12, Issue 4, April 2025.
Abstract During the Indian winter, the southerly propagation of cold air at middle and upper altitudes is caused by a trough in westerly jet streams due to the effect of Western Disturbances (WDs). Sometimes, this advection of cold and dry air above near‐surface moist and warm air can make the atmosphere conditionally unstable. Therefore, these WDs are
Abhijeet Gangane   +6 more
wiley   +1 more source

3D NUMERICAL HYDRODYNAMICAL MODELS OF THE PRECESSING THICK ACCRETION DISK AND ON- AND OFF-STATE GENERATIONS IN MICROQUASARS

open access: yesOdessa Astronomical Publications, 2017
The thick accretion disk and donor’s wind on the example of CYG X-1 are computed. The main aim of the present simulations is to calculate the precessing thick accretion disk and ON- and OFF-state generation by the methods of 3D numerical hydrodynamics ...
V. V. Nazarenko, S. V. Nazarenko
doaj   +1 more source

Empirical Quantification of Topobathymetric Lidar System Resolution Using Modulation Transfer Function

open access: yesEarth and Space Science, Volume 12, Issue 4, April 2025.
Abstract Topobathymetric scanning lidar deployed on unmanned aircraft systems is a powerful tool for high‐resolution mapping of the dynamic interface between topography and bathymetry. However, standardized methods for empirical resolution validation have not been widely adopted across lidar applications.
K. W. Sacca, J. P. Thayer
wiley   +1 more source

Helical Magnetic Field in a Massive Protostellar Jet

open access: yesThe Astrophysical Journal Letters
Highly collimated outflows (jets) are observed across a wide range of astrophysical systems involving the accretion of material onto central objects, from supermassive black holes in active galaxies to proto-brown dwarfs and stellar-mass black holes ...
A. Rodríguez-Kamenetzky   +9 more
doaj   +1 more source

Home - About - Disclaimer - Privacy