Results 41 to 50 of about 54,240 (242)

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

Journal 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, Steven Kay, Julia Wajoras, Robert Field, Evridiki V. Ntagiou, Fakher Mohammad, Yang Gao   +6 more
wiley   +1 more source

Data Sharing and Information Security Under the Software‐Defined Network

IET 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, Yuan Fang, Ming Li, Liang Zhang, Jingxuan Xu, Xin Ding   +5 more
wiley   +1 more source

DESTRUCTION OF THE INTERSTELLAR CLOUDS BY THESHOCK WAVES

Odessa Astronomical Publications, 2008
We study the influence of the interstellar cloud structure irregularity on the dynamics of its destruction by a supernova shock wave. It is shown that irregular clouds are destroyed twice quickly as the spherical ones.
E. E. Matvienko, Yu. A. Shchekinov
doaj   +1 more source

Two-component model of the interaction of an interstellar cloud with surrounding hot plasma

, 2011
We present a two-component gasdynamic model of an interstellar cloud embedded in a hot plasma. It is assumed that the cloud consists of atomic hydrogen gas, interstellar plasma is quasineutral.
Baranov, Cowie, Cox, Cravens, Dalton, E. A. Provornikova, Graham, Izmodenov, Izmodenov, Koutroumpa, Lallement, Lisse, Maher, McKee, McNutt, Nagashima, Penston, Provornikova, R. Lallement, Slavin, Spitzer, V. V. Izmodenov, Vieser, Zel’dovich   +23 more
core   +2 more sources

Interstellar Scintillation and Clouds of the Interstellar Turbulent Plasma [PDF]

International Astronomical Union Colloquium, 2001
AbstractData on interstellar diffraction and refraction scintillation of pulsars are analyzed. Comparison between theory and the observational data shows that two types of spectra for electron density fluctuations are realized in the interstellar medium: pure power law and piecewise with a break. The distribution of turbulent plasma in the Galaxy has a
openaire   +2 more sources

The density distribution and 58.4 nm radiation intensity of interstellar helium in the heliosphere: a model simulation

Earth and Planetary Physics
Research on the interstellar medium and its interaction with the solar system constitutes a significant topic in planetary physics. As the Sun traverses the local interstellar cloud, interstellar neutrals penetrate the heliosphere, forming the ...
JiaLing Lyu, ChongJing Yuan, Fei He, BeiLi Ying   +3 more
doaj   +1 more source

Microstructure of the Local Interstellar Cloud and the Identification of the Hyades Cloud [PDF]

, 2001
We analyze high-resolution UV spectra of the Mg II h and k lines for 18 members of the Hyades Cluster to study inhomogeneity along these proximate lines of sight.
Diamond C. J., Dupin O., Frisch P. C., Frisch P. C., Gry C., Hebrard G., Jeffrey L. Linsky, Lallement R., Lallement R., Lallement R., Lallement R., Perryman M. A. C., Perryman M. A. C., Seth Redfield, Sfeir D. M.   +14 more
core   +2 more sources

Sampling the volcanic plumes at Io: Impact speeds and shock conditions

Meteoritics &Planetary Science, EarlyView.
Abstract The desire to sample material from the interior of Io, by flying through its volcanic plumes, requires consideration of the flyby speed and the types of sample collection techniques that can be utilized. Low speed collection (1–2.5 km s−1) would require an orbit around Io itself, which is unlikely due to the accumulated radiation dose that ...
M. J. Burchell, R. C. Ogliore, P. J. Wozniakiewicz   +2 more
wiley   +1 more source

The Infrared Complex Refractive Index and Band Strengths of Coronene Thin Films

The Astrophysical Journal
Polycyclic aromatic hydrocarbon (PAH) molecules have long been theorized to be present in a multitude of interstellar environments. The radio-frequency detections of specific cyanosubstituted PAH molecules in the Taurus Molecular Cloud have provided new ...
J. E. Roser, L. Jovanović, A. Ricca
doaj   +1 more source

Structure and evolution of interstellar carbonaceous dust. Insights from the laboratory

Frontiers in Astronomy and Space Sciences, 2022
A large fraction of interstellar carbon is locked up in solid grains. The nature, origin and evolution of these grains have been investigated for decades.
Víctor J. Herrero, Miguel Jiménez-Redondo, Miguel Jiménez-Redondo, Ramón J. Peláez, Belén Maté, Isabel Tanarro   +5 more
doaj   +1 more source