Results 111 to 120 of about 1,963,432 (340)

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

Presupernova Structure of Massive Stars

, 2010
Issues concerning the structure and evolution of core collapse progenitor stars are discussed with an emphasis on interior evolution. We describe a program designed to investigate the transport and mixing processes associated with stellar turbulence ...
A. Claret, A. Claret, A. Heger, A. Heger, A. Heger, A. Maeder, A. Mazumdar, A. Nordlund, A. Pietrinferni, A.J.T. Poelarends, A.M. Serenelli, A.S. Endal, C. Aerts, C.A. Meakin, C.A. Meakin, C.A. Meakin, C.A. Meakin, Casey A. Meakin, D. Arnett, D. Arnett, E. Caffau, E.I. Staritsin, F. Herwig, F.J. Robinson, G. Bazán, G. Bertelli, G. Schaller, G. Torres, H.C. Spruit, H.C. Spruit, H.J.S. Fernando, I. Ribas, J. Montalbán, J.A. Guzik, J.C. Suárez, L. Girardi, L. Siess, L.H. Kantha, L.H. Li, M. Briquet, M. Desmet, M. Marconi, M. Mocák, M. Mocák, M. Soriano, M. Steffen, M.-A. Dupret, M.H. Pinsonneault, M.K. Browning, M.M. Hohle, M.P. Mauro Di, N. Langer, P.G. Drazin, P.P. Eggleton, R. Kippenhahn, R. Kuhfuss, R.F. Stein, R.F. Stein, R.G. Deupree, R.L. Gilliland, S. Chandrasekhar, S. Vauclair, S.E. Woosley, S.E. Woosley, S.W. Bruenn, T.M. Rogers, Tuguldur Sukhbold, V.M. Canuto, W. David Arnett, W. Unno, W.D. Arnett, W.J. Merryfield   +71 more
core   +1 more source

Anomalous‐Energy Runaway Electrons Originating in Fast Ionisation Wave During Pulsed Gas Breakdown

High Voltage, EarlyView.
ABSTRACT Anomalous‐energy runaway electrons (RAEs), whose energy exceeds the maximum potential difference across the discharge gap, are widely observed in various plasma phenomena. This study investigates the origination of anomalous‐energy RAEs in fast ionisation waves (FIWs) formed during pulsed gas breakdown.
Bangdou Huang, Chenhua Ren, Cheng Zhang, Edl Schamiloglu, Tao Shao   +4 more
wiley   +1 more source

Research relative to high energy astrophysics [PDF]

Various parameters which affect the design of the proposed large area modular array of reflectors (LAMAR) are considered, including thermal control, high resolution X-ray spectroscopy, pointing control, and mirror performance.
Gorenstein, P.
core   +1 more source

Alternative Approaches for Estimating Highest‐Density Regions

International Statistical Review, EarlyView.
Summary Among the variety of statistical intervals, highest‐density regions (HDRs) stand out for their ability to effectively summarise a distribution or sample, unveiling its distinctive and salient features. An HDR represents the minimum size set that satisfies a certain probability coverage, and current methods for their computation require ...
Nina Deliu, Brunero Liseo
wiley   +1 more source

Exploring the Components of Cosmogenic UHECR, Neutrino, and Diffuse Gamma Ray from High-Energy Astrophysical Objects

Galaxies
The development of multimessenger astrophysics allows us to probe various background particles from the distant early universe. Up to now, much effort has been made researching the emission and radiation of diverse steady or transient astrophysical ...
Fangsheng Min, Hong Lu, Yiqing Guo
doaj   +1 more source

A dark matter model that reconciles tensions between the cosmic-ray e± excess and the gamma-ray and CMB constraints

Physics Letters B, 2017
The cosmic-ray (CR) e± excess observed by AMS-02 can be explained by dark matter (DM) annihilation. However, the DM explanation requires a large annihilation cross section which is strongly disfavored by other observations, such as the Fermi-LAT gamma ...
Qian-Fei Xiang, Xiao-Jun Bi, Su-Jie Lin, Peng-Fei Yin   +3 more
doaj   +1 more source

Astrophysical high-energy neutrinos [PDF]

Physics Today, 2018
News from multiple messengers—neutrinos, cosmic rays, and photons—provides clues to the cosmic sources that create some of the most energetic particles observed on Earth.
openaire   +1 more source

New knowledge about shock events that affected the L‐chondrite parent body from two heavily shocked L6 meteorite finds

Meteoritics &Planetary Science, EarlyView.
Abstract We report new results from a study of shock‐related features in the L6 ordinary chondrites Northwest Africa (NWA) 4672 and NWA 12841. Our observations confirm the occurrence of eight high‐pressure (HP) minerals in each meteorite, namely, ringwoodite, majorite, akimotoite, wadsleyite, albitic jadeite, lingunite, tuite, and xieite.
I. Baziotis, L. Ferrière, C. Ma, J. Hu, D. Palles, P. D. Asimow   +5 more
wiley   +1 more source

Physics in Very Strong Magnetic Fields: Introduction and Overview

, 2014
This paper provides an introduction to a number of astrophysics problems related to strong magnetic fields. The first part deals with issues related to atoms, condensed matter and high-energy processes in very strong magnetic fields, and how these issues
Lai, Dong
core   +1 more source