Results 31 to 40 of about 108,328 (257)

Theory of interstellar medium diagnostics [PDF]

open access: yes, 1983
The theoretical interpretation of observed interplanetary resonance luminescence patterns is used as one of the must promising methods to determine the state of the local interstellar medium (LISM).
Fahr, H. J.
core   +1 more source

Astrophysical Fractals: Interstellar Medium and Galaxies

open access: yes, 1999
The interstellar medium is structured as a hierachy of gas clouds, that looks self-similar over 6 orders of magnitude in scales and 9 in masses. This is one of the more extended fractal in the Universe.
Combes, F.
core   +2 more sources

Eyes in the sky: Interactions between AGB winds and the interstellar magnetic field [PDF]

open access: yes, 2014
We aim to examine the role of the interstellar magnetic field in shaping the extended morphologies of slow dusty winds of Asymptotic Giant-branch (AGB) stars in an effort to pin-point the origin of so-called eye shaped CSE of three carbon-rich AGB stars.
Cox, N. L. J.   +2 more
core   +1 more source

Energy Landscapes in Chemical Reactions and Transport

open access: yesChemPhysChem, Volume 26, Issue 6, March 15, 2025.
Kinetics/dynamics of chemical reactivity and transport of chemical species in a solid are both determined by the energy landscape in which they take place. Discussing common grounds but also distinct differences may help in advancing the understanding in both fields.
Karl‐Michael Weitzel
wiley   +1 more source

AIMNet2‐NSE: A Transferable Reactive Neural Network Potential for Open‐Shell Chemistry

open access: yesAngewandte Chemie, Volume 138, Issue 5, 28 January 2026.
AIMNet2‐NSE enables accurate modeling of open‐shell radical chemistry through neural spin‐charge equilibration (NSE). This machine learning interatomic potential predicts radical reaction energies, barriers, and spin‐crossing events with near‐DFT accuracy while offering five orders of magnitude computational speedup, making high‐throughput exploration ...
Bhupalee Kalita   +7 more
wiley   +2 more sources

Quenching and Recovery of Persistent X-Ray Emission during a Superburst in 4U 1820–30

open access: yesThe Astrophysical Journal
We report the superburst from 4U 1820–30 in 2021 observed by the Monitor of All-sky X-ray Image and Neutron star Interior Composition Explorer (NICER).
Zhijiao Peng   +8 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

Panoramic Views of the Cygnus Loop [PDF]

open access: yes, 1998
We present a complete atlas of the Cygnus Loop supernova remnant in the light of [O III] (5007), H alpha, and [S II] (6717, 6731). Despite its shell-like appearance, the Cygnus Loop is not a current example of a Sedov-Taylor blast wave.
Ballet J.   +17 more
core   +2 more sources

Data Sharing and Information Security Under the Software‐Defined Network

open access: yesIET Networks, Accepted Article.
To sum up, the big data sharing platform based on SDN can quickly and effectively respond to the data requests of end users, and the information security protection system can detect the platform in real time to prevent it from being intruded and damaged, which largely protects the information security of the platform." cd_value_code="text Abstract ...
Jianqiao Sheng   +5 more
wiley   +1 more source

Homoleptic Bismuth Alkynes: Isolable Reagents for Selective Alkynyl Radical Transfer

open access: yesAngewandte Chemie, Volume 138, Issue 4, 22 January 2026.
The first series of fully characterized homoleptic alkynyl bismuth compounds Bi(C≡CR)3 is presented. Facile homolytic Bi–C bond cleavage grants access to alkynyl radicals, which have been employed in selective C–X bond formation (X = C, B, Se, Te). This complements existing strategies for alkynyl radical generation as it proceeds under mild and purely ...
Gargi Kundu   +5 more
wiley   +2 more sources

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