Results 71 to 80 of about 258,357 (262)

gandalf– Graphical Astrophysics code forN-body Dynamics And Lagrangian Fluids [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2017
AbstractGANDALF is a new hydrodynamics and N-body dynamics code designed for investigating planet formation, star formation and star cluster problems. GANDALF is written in c++, parallelized with both openmp and mpi and contains a python library for analysis and visualization.
D. A. Hubber, G. P. Rosotti, R. A. Booth
openaire   +3 more sources

Quantum Iterative Methods for Solving Differential Equations with Application to Computational Fluid Dynamics

open access: yesAdvanced Quantum Technologies, EarlyView.
Quantum algorithms for differential equations are developed with applications in computational fluid dynamics. The methods follow an iterative simulation framework, implementing Jacobi and Gauss–Seidel schemes on quantum registers through linear combinations of unitaries.
Chelsea A. Williams   +4 more
wiley   +1 more source

Physics-informed neural networks for modeling astrophysical shocks

open access: yesMachine Learning: Science and Technology, 2023
Physics-informed neural networks (PINNs) are machine learning models that integrate data-based learning with partial differential equations (PDEs).
S P Moschou   +5 more
doaj   +1 more source

Survey on AI‐Enabled Computer Vision Technologies and Applications for Space Robotic Missions

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT This survey provides a comprehensive overview of recent advancements and challenges in Artificial Intelligence (AI)‐enabled computer vision (CV) techniques for space robotic missions, spanning critical phases such as Entry, Descent, and Landing (EDL), orbital operations, and planetary surface exploration.
Maciej Quoos   +6 more
wiley   +1 more source

The kink-type instability of toroidal stellar magnetic fields with thermal diffusion

open access: yes, 2009
The stability of toroidal magnetic fields in rotating radiative stellar zones is studied for realistic values of both the Prandtl numbers. The two considered models for the magnetic geometry represent fields with odd and even symmetry with respect to the
G. Rüdiger   +6 more
core   +1 more source

Identity Play: Middle School Youths' Provisional Self‐Making in Horizon‐Expanding STEM Spaces

open access: yesScience Education, EarlyView.
ABSTRACT This study introduces identity play as an analytic construct for science education to explore improvisational dimensions of middle school students' STEM identity development in multiple out‐of‐school learning experiences focused on environmental problem‐solving.
Heidi B. Carlone, Alison K. Mercier
wiley   +1 more source

An Anisotropic Plasma Model of the Heliospheric Interface

open access: yesThe Astrophysical Journal
We present a pioneering model of the interaction between the solar wind and the surrounding interstellar medium that includes the possibility of different pressures in directions parallel and perpendicular to the magnetic field.
Vladimir Florinski   +6 more
doaj   +1 more source

On the effects of turbulence on a screw dynamo

open access: yes, 2006
In an experiment in the Institute of Continuous Media Mechanics in Perm (Russia) an non--stationary screw dynamo is intended to be realized with a helical flow of liquid sodium in a torus.
Denisov SA   +13 more
core   +1 more source

A fluid-dynamical subgrid scale model for highly compressible astrophysical turbulence [PDF]

open access: yesAstronomy & Astrophysics, 2011
We formulate and implement the Euler equations with SGS dynamics and provide numerical tests of an SGS turbulence energy model that predicts the turbulent pressure of unresolved velocity fluctuations and the rate of dissipation for highly compressible turbulence.
Schmidt, W., Federrath, C. et al.
openaire   +4 more sources

Determining impact angle from the spatial distribution of shock metamorphism: A case study of the Gosses Bluff (Tnorala) impact structure, Australia

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract The majority of planetary impacts occur at oblique angles. Impact structures on Earth are commonly eroded or buried, rendering the identification of the direction and angle of impact—using methods such as asymmetries in ejecta distribution, surface topographic expression, central uplift structure, and geophysical anomalies—challenging. In this
Eloise E. Matthews   +5 more
wiley   +1 more source

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