Results 51 to 60 of about 993,230 (345)

Radio and spectroscopic properties of miniature radio galaxies: revealing the bulk of the radio-loud AGN population

, 2009
We explore radio and spectroscopic properties of a sample of 14 miniature radio galaxies, i.e. early-type core galaxies hosting radio-loud AGN of extremely low radio power, 10^(27-29) erg s^(-1) Hz^(-1) at 1.4 GHz.
A. Capetti, Abraham, Alexander, Allen, Anderson, Anderson, Anderson, Auriemma, Baldwin, Balmaverde, Balmaverde, Balmaverde, Baum, Becker, Becker, Best, Best, Buttiglione, Capetti, Capetti, Capetti, Capetti, Chiaberge, Cohen, Condon, Condon, de Ruiter, de Zotti, Falcke, Fanti, Fanti, Feretti, Filho, Giovannini, Giovannini, Hardcastle, Hardcastle, Heckman, Hine, Ho, Ho, Hummel, Jackson, Jansen, Jones, Kellermann, Kewley, Kunert-Bajraszewska, Lynds, Marcha, Marchã, Martin, Miller, Morganti, Morganti, Nagar, Nagar, Nagar, Nagar, Osterbrock, R. D. Baldi, Rawlings, Rawlings, Reynolds, Sadler, Snellen, Spinrad, Stanger, Torniainen, Ulvestad, Urry, White, Wrobel, Wrobel   +73 more
core   +1 more source

Composite Electrospun Fibers Containing Optimized B‐ and Cu‐Doped Bioactive Glass Sol‐Gel Particles for Potential Soft Tissue Engineering Applications

Advanced Engineering Materials, EarlyView.
This article describes the preparation and characterization of poly(ε‐caprolactone) electrospun composite fibers incorporating sol‐gel‐derived bioactive glass particles doped with B and Cu. Scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, Fourier‐transform infrared spectroscopy, contact angle, acellular bioactivity, mechanical and ...
Elisa Piatti, Marta Miola, Liliana Liverani, Paolo Sartori, Enrica Verné, Aldo R. Boccaccini   +5 more
wiley   +1 more source

The angular characteristics of Moon-based Earth observations

International Journal of Digital Earth, 2020
The Moon, Earth’s only natural satellite, is a potential new platform for Earth observation. Moreover, with the wide applicability of the angular information from remote sensing data, it has been attracting increasingly more attention.
Huadong Guo, Yuanzhen Ren, Guang Liu, Hanlin Ye   +3 more
doaj   +1 more source

Digital Radio Strategies in the United States: A Tale of Two Systems [PDF]

, 2010
This essay analyzes how, despite early interest in the Digital Audio Broadcasting standard (DAB) in the United States, an alternative in-band system (HD Radio) was developed as the approved digital radio ...
Huntsberger, Michael, Stavitsky, Alan G.
core   +1 more source

The triggering probability of radio-loud AGN: A comparison of high and low excitation radio galaxies in hosts of different colors [PDF]

, 2012
Low luminosity radio-loud active galactic nuclei (AGN) are generally found in massive red elliptical galaxies, where they are thought to be powered through gas accretion from their surrounding hot halos in a radiatively inefficient manner.
Abazajian, Baldwin, Balogh, Becker, Best, Best, Best, Best, Brinchmann, Condon, Croton, Evans, H. J. A. Röttgering, Hardcastle, Hickox, J. Brinchmann, Kauffmann, Kauffmann, Kauffmann, Martin, Matthews, P. N. Best, R. M. J. Janssen, Schmidt, Stoughton, Strateva, Strauss, Tadhunter, Tasse, Whysong, York   +30 more
core   +3 more sources

Adaptable Tile‐Based Pneumatic Origami through Structurally Coupled Localized Actuation

Advanced Engineering Materials, EarlyView.
This article presents tile‐based pneumatic origami structures with rigid tiles and flexible fabric creases, achieving adaptable properties including morphing shape, selective multistability, and tunable stiffness. Independently pressurized folding bladders at each crease enable structurally coupled localized actuation of origami structures.
Tiantian Li, Jonathan Luntz, Diann Brei
wiley   +1 more source

Trace Nickel Activated Biphasic Core‐CuOii/Shell‐CuOi Secondary Microspheres Enable Room Temperature Parts‐Per‐Trillion‐Level NO2 Detection

Advanced Engineering Materials, EarlyView.
An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu, Peipei Chen, Shafia Mukhtar Ibrahim, Mukhtar Lawan Adam, Attia Falak, Mokhotjwa Simon Dhlamini, Hanfu Wang, Lingxiang Jiang, Weiguo Chu   +8 more
wiley   +1 more source

From the Antenna to the Display Devices: Transformation of the Colombian Radio Industry

Journalism and Media, 2021
Consolidation of the digital environment has become an irreversible global reality and, for the Colombian radio industry, it implies not only assuming a process of transformation in its actions, but, above all, continuous learning.
Andrés Barrios-Rubio
doaj   +1 more source

All photonic analogue to digital and digital to analogue conversion techniques for digital radio over fibre system applications [PDF]

, 2011
Copyright @ 2011 IEEEWideband electronic analogue to digital conversion (ADC) systems have critical problems encountered in high-frequency broadband communication systems that the recent electronic ADCs (EADC) have experienced those such as uncertainty ...
Abdollahi, SR, Al-Raweshidy, H, Mehdi Fakhraie, S, Nilavalan, R   +3 more
core  

Galaxy Cluster Environments of Radio Sources

, 2011
Using the Sloan Digital Sky Survey (SDSS) and the FIRST (Faint Images of the Radio Sky at Twenty Centimeters) catalogs, we examined the optical environments around double-lobed radio sources. Previous studies have shown that multi-component radio sources
Abazajian, Ascasibar, Bahcall, Blanc, Blanton, Blanton, Blanton, Blanton, Blanton, Blanton, Bower, Bradač, Brodwin, Budavári, Burns, Clarke, Condon, Croft, Csabai, Daddi, Dalton, Deltorn, Dickinson, D’Onghia, Elizabeth L. Blanton, Fanaroff, Gal, Garilli, Gladders, Gladders, Gladders, Gómez, Ivezić, Jee, Joshua D. Wing, Koester, Koester, Krick, Lin, Lin, Lin, Lumsden, Martini, McMahon, Menanteau, Miller, Oklopčić, Ostrander, Owen, Oyaizu, Proctor, Reiprich, Roettiger, Sarazin, Schlegel, Smith, Smolčić, Vanderlinde, Vikhlinin, Voges, Wen, York, Zirbel, Zwicky   +63 more
core   +1 more source