Results 141 to 150 of about 1,084,097 (331)

Radiation‐Induced Degradation in Polymeric Materials: Alterations in Physical–Chemical Properties and Their Effects on Electrical Performance of Insulation Systems

open access: yesHigh Voltage, EarlyView.
ABSTRACT This paper investigates the effects of radiation on polymeric materials used as insulation systems in electrical equipment such as cables for nuclear and particle accelerator applications. After a detailed description of the physics of radiation‐induced damage in the polymeric matrix, a comprehensive analysis of the physical–chemical and ...
Simone Vincenzo Suraci, Davide Fabiani
wiley   +1 more source

Acceleration of Ultra-high-energy Cosmic Rays in the Kiloparsec-scale Jets of Nearby Radio Galaxies

open access: yesThe Astrophysical Journal Letters
Radio galaxies have long been considered as potential sources of ultra-high-energy cosmic rays (UHECRs). Recent analyses of the UHECR spectrum, composition, and arrival directions indicate that the nearest radio galaxy, Centaurus A, could be linked to ...
Jie-Shuang Wang   +3 more
doaj   +1 more source

Particle acceleration and dynamics of double–double radio galaxies: theory versus observations [PDF]

open access: yes, 2013
In this paper we show that a small sample of radio galaxies with evidence for multiple epochs of jet activity (so-called `double-double' radio galaxies) have the same electron injection spectral index in the two activity episodes, a result which might be
C. Konar, M. Hardcastle
semanticscholar   +1 more source

The radio properties of a complete, X-ray selected sample of nearby, massive elliptical galaxies

open access: yes, 2010
We investigate the radio properties of a complete sample of nearby, massive, X-ray bright elliptical and S0 galaxies. Our sample contains 18 galaxies with ROSAT All-Sky Survey X-ray fluxes Fx_(0.1-2.4 keV) > 3 x 10^(-12) erg/s/cm^2, within a distance of ...
A. C. Fabian   +134 more
core   +1 more source

From cities to refuges for pollinators: Urban practices for enhancing pollinator habitats in changing landscapes

open access: yesJournal of Applied Ecology, EarlyView.
A framework for the support of pollinators in urban areas is developed here, based on five pillars: nesting, flower resources, artificial support, management and society acceptance, with additional key elements from science and society. Society should incorporate strategies for pollinators as in this framework by means of co‐planning with stakeholders,
Rosa Ranalli   +3 more
wiley   +1 more source

The far-infrared/radio correlation and radio spectral index of galaxies in the SFR–M∗ plane up to z~2 [PDF]

open access: yes, 2014
We study the evolution of the radio spectral index and far-infrared/radio correlation (FRC) across the star-formation rate – stellar masse (i.e. SFR–M∗) plane up to z ~ 2.
B. Magnelli   +26 more
semanticscholar   +1 more source

Spatial Dynamics and Lifespan of Adult Cicadas After Fire and Logging: A Radiotracking Study

open access: yesIntegrative Zoology, EarlyView.
This study investigates the effects of wildfire and post‐fire salvage logging on the survival, spatial behavior, and habitat selection of Lyristes plebejus cicadas in Mediterranean pine forests. A total of 63 cicadas were captured, tagged with radio transmitters, and released in three disturbance contexts: burnt‐logged, burnt‐unlogged, and unburnt ...
Carles Tobella   +4 more
wiley   +1 more source

The Intrinsic Sizes of Odd Radio Circles

open access: yesThe Astrophysical Journal
A new class of sources, the so-called odd radio circles (ORCs), have been discovered by recent sensitive, large-area radio continuum surveys. The distances of these sources have so far relied on photometric redshifts of optical galaxies found at the ...
David S. N. Rupke   +5 more
doaj   +1 more source

GOODS-HERSCHEL: STAR FORMATION, DUST ATTENUATION, AND THE FIR–RADIO CORRELATION ON THE MAIN SEQUENCE OF STAR-FORMING GALAXIES UP TO z ≃ 4 [PDF]

open access: yes, 2014
We use deep panchromatic data sets in the GOODS-N field, from GALEX to the deepest Herschel far-infrared (FIR) and VLA radio continuum imaging, to explore the evolution of star-formation activity and dust attenuation properties of star-forming galaxies ...
M. Pannella   +27 more
semanticscholar   +1 more source

Deep Learning for Detecting Dental Plaque and Gingivitis From Oral Photographs: A Systematic Review

open access: yesCommunity Dentistry and Oral Epidemiology, EarlyView.
ABSTRACT Objectives This systematic review aimed to evaluate the performance of deep learning (DL) models in detecting dental plaque and gingivitis from red, green, and blue (RGB) intraoral photographs. Methods A comprehensive literature search was conducted across Medline, Scopus, Embase, and Web of Science databases up to January 31, 2025.
Mohammad Moharrami   +7 more
wiley   +1 more source

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