Results 121 to 130 of about 150,051 (304)

Prioritized Real‐Time UAV‐Based Vessel Detection for Efficient Maritime Search

Journal of Field Robotics, EarlyView.
ABSTRACT Real‐time vessel detection in maritime environments is crucial for diverse applications requiring speed and accuracy. Static camera views often introduce blind spots, compromising detection efficiency. This paper proposes a novel, real‐time UAV‐based system that uses a dynamic camera control strategy to address this limitation.
Lyes Saad Saoud, Zikai Jia, Siyuan Yang, Muhayy Ud Din, Lakmal Seneviratne, Shaoming He, Irfan Hussain   +6 more
wiley   +1 more source

Efficiency of Turbulent Reacceleration by Solenoidal Turbulence and Its Application to the Origin of Radio Megahalos in Cluster Outskirts

The Astrophysical Journal
Recent radio observations with the Low Frequency Array (LOFAR) discovered diffuse emission extending beyond the scale of classical radio halos. The presence of such megahalos indicates that the amplification of the magnetic field and acceleration of ...
Kosuke Nishiwaki, Gianfranco Brunetti, Franco Vazza, Claudio Gheller   +3 more
doaj   +1 more source

Physical Characteristics of the Cancer Cluster of Galaxies [PDF]

, 1950
F. Zwicky
openalex   +1 more source

Giant radio halos in galaxy clusters as probes of particle acceleration in turbulent regions

, 2011
Giant radio halos in galaxy clusters probe mechanisms of particle acceleration connected with cluster merger events. Shocks and turbulence are driven in the inter-galactic-medium (IGM) during clusters mergers and may have a deep impact on the non-thermal
Brunetti, G.
core   +1 more source

Soil community structure across native and exotic forests is shaped by edaphoclimatic conditions and eukaryotic biomarkers

Journal of Applied Ecology, EarlyView.
Our results point to the importance of taking management decisions for these forests considering regional conditions as well as forest type. The provided list of soil keystone taxa should be taken into account in future research and soil monitoring, which is essential for sustainable management of land.
Concha Cano‐Díaz, Claudia Carvalho‐Santos, Rui P. Carvalho, Sofia R. Costa, A. Carolina Duarte, Paulo Fernandes, Susana Mendes, Bala Singavarapu, Brajesh K. Singh, Juntao Wang, Carlos A. Guerra   +10 more
wiley   +1 more source

Multiobject Spectroscopy of Galaxy Clusters at z ∼ 0.95 in the Ultra Deep Survey Field with Different Star Formation Properties and Large-scale Environments

The Astrophysical Journal Supplement Series
While galaxy clusters are dominated by quiescent galaxies in the local Universe, they show a wide range in quiescent galaxy fraction (QF) at higher redshifts.
Seong-Kook Lee, Myungshin Im, Bomi Park, Minhee Hyun, Insu Paek, Dohyeong Kim   +5 more
doaj   +1 more source

The Numbers of Early-Type Stars in the Galaxy and Their Relation to Galactic Clusters and Associations [PDF]

, 1957
Morton S. Roberts
openalex   +1 more source

The evolution of galaxy clustering [PDF]

Monthly Notices of the Royal Astronomical Society, 1997
This paper investigates whether nonlinear gravitational instability can account for the clustering of galaxies on large and small scales, and for the evolution of clustering with epoch. No CDM-like spectrum is consistent with the shape of the observed nonlinear spectrum. Unbiased low-density models greatly overpredict the small-scale correlations; high-
openaire   +3 more sources

‘FROM GHETTO TO HABITUS FACTORY’ ROMA CAMPS IN ITALY: An Empirical Extension of Loïc Wacquant's Theorization

International Journal of Urban and Regional Research, EarlyView.
Abstract In this article we apply Wacquant's conceptualization of the ghetto to an analysis of interviews conducted with Roma people living in the state‐enforced camps of Turin, Italy. We illustrate how the elements characterizing a ghetto according to Wacquant (i.e.
Vincenzo Romania, Tommaso Bertazzo
wiley   +1 more source

Quantifying the Velocity Anisotropy Profile of Galaxy Clusters Using the Uchuu Cosmological Simulation

The Astrophysical Journal
Galaxy clusters are powerful laboratories for studying both cosmic structure formation and galaxy evolution. We present a comprehensive analysis of the velocity anisotropy profile, β ( r ), in galaxy clusters using the Uchuu-UniverseMachine mock galaxy ...
Mohamed H. Abdullah, Raouf H. Mabrouk, Tomoaki Ishiyama, Gillian Wilson, Magdy Y. Amin, Elamira Hend Khattab, H. I. Abdel Rahman   +6 more
doaj   +1 more source