Results 91 to 100 of about 17,923,772 (307)

Astrophysical N-Body Simulations: Algorithms and Challenges [PDF]

, 2001
The subjects and key questions faced by computational astrophysics using N-body simulations are discussed in the fields of globular star cluster dynamics, galactic nuclei and cosmological structure formation. After a comparison of the relevance of different N-body algorithms a new concept for a more flexible customized special purpose computer based on
openaire   +2 more sources

N-Body Simulations on Massively Parallel Architectures

Journal of Computational Physics, 1994
The simulations of the properties of \(N\) particles, mutually interacting through a pair-wise force, yield information that is inaccessible by other means and that leads to insight into predictable behavior for a wide range of problems. In this paper, the authors give several simple procedures that reduce by an order of magnitude the computation time ...
Stiller, L., Daemen, L. L., Gubernatis, J. E.   +2 more
openaire   +1 more source

Fostering Innovation: Streamlining Magnetocaloric Materials Research by Digitalization

Advanced Engineering Materials, EarlyView.
Magnetocaloric cooling (MCE) is an environmentally friendly refrigeration method with great potential. Optimizing MCE materials involves the preparation and screening of large quantities of samples, which in turn generates a large amount of data. A digitalization approach is presented that uses ontologies, knowledge graphs, and digital workflows to ...
Simon Bekemeier, Moritz Blum, Luana Caron, Alisa Chirkova, Philipp Cimiano, Basil Ell, Inga Ennen, Michael Feige, Maik Gaerner, Thomas Hilbig, Andreas Hütten, Günter Reiss, Tapas Samanta, Sonja Schöning, Christian Schröder, Lennart Schwan, Chris Taake, Martin Wortmann   +17 more
wiley   +1 more source

N-body models of open clusters

, 2007
N-body simulations of open cluster evolution with primordial binaries are reviewed. In particular, recent results arising from models with initial N in the range of 20000100000 bodies are compared to earlier idealized models with N ~ 2000.
Jarrod Hurley (18925981)
core   +1 more source

Accretion History Dependence of the Halo Depletion Radius

The Astrophysical Journal
We investigate the role of the accretion history in shaping the depletion radius of dark matter halos using a large cosmological N -body simulation. We show that the inner depletion radius, rescaled by the virial radius, depends strongly on the recent ...
Jiale Zhou, Jiaxin Han
doaj   +1 more source

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

Advanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch, Maximilian Holland, Klaus Drechsler, Johannes Schilp   +3 more
wiley   +1 more source

Computational Structure of the N-body Problem

, 1988
This work considers the organization and performance of computations on parallel computers of tree algorithms for the N-body problem where the number of particles is on the order of a million.
Katzenelson, Jacob
core  

Measuring the Hubble Constant through the Galaxy Pairwise Peculiar Velocity

The Astrophysical Journal Letters
The Hubble constant H _0 , the current expansion rate of the Universe, is one of the most important parameters in cosmology. The cosmic expansion regulates the mutually approaching motion of a pair of celestial objects due to their gravity.
Wangzheng Zhang, Ming-chung Chu, Shihong Liao, Shek Yeung, Hui-Jie Hu   +4 more
doaj   +1 more source

The PRIMA Thesaurus for Materials Science and Engineering

Advanced Engineering Materials, EarlyView.
The PRIMA Thesaurus is a structured vocabulary designed to improve how materials science data is described and shared. Developed with input from multiple experts, it enables clear documentation of research workflows, data exchange, and reuse across platforms.
Rossella Aversa, Alexey Boubnov, Dario De Angelis, Catriona Eschke, Maximilian Kabbe, Felix Kraus, Mirco Panighel, Richard Thelen, Davide Valentinis   +8 more
wiley   +1 more source

The Role of Three-Body Interactions on the Equilibrium and Non-Equilibrium Properties of Fluids from Molecular Simulation [PDF]

The aim of this work is to use molecular simulation to investigate the role of three-body interatomic potentials in noble gas systems for two distinct phenomena: phase equilibria and shear flow.
Marcelli, Gianluca
core