Results 81 to 90 of about 4,063,393 (390)

WATCAT: a tale of wide-angle tailed radio galaxies

open access: yes, 2019
We present a catalog of 47 wide-angle tailed radio galaxies (WATs), the WATCAT; these galaxies were selected by combining observations from the National Radio Astronomy Observatory/Very Large Array Sky Survey (NVSS), the Faint Images of the Radio Sky at ...
Baldi, R. D.   +6 more
core   +1 more source

Nonlinearity and Domain Switching in a 3D‐Printed Architected Ferroelectric

open access: yesAdvanced Engineering Materials, EarlyView.
By combining functional properties measurement with in situ 2D X‐ray microdiffraction experiments, it is shown that nonlinear polarization and strain responses of a 3D‐printed architected ferroelectric are driven by localized progression of domain switching, which depends on nonuniform electric‐field distribution as well as evolving stress fields.
Abhijit Pramanick   +7 more
wiley   +1 more source

Analisis Migrasi Radio Trunking Analog ke Radio Trunking Digital di Indonesia [PDF]

open access: yes, 2013
Dalam Tabel Alokasi Spektrum Frekuensi di Indonesia pada catatan kaki INS9 dan INS13 disebutkan bahwa alokasi pada pita-pita frekuensi yang digunakan untuk teknologi trunking direncanakan dimigrasi ke sistem komunikasi trunking digital pada waktu yang ...
Azmi, R. (Riza)
core  

Advances in Hybrid Icing and Frosting Protection Strategies for Optics, Lens, and Photonics in Cold Environments Using Thin‐Film Acoustic Waves

open access: yesAdvanced Engineering Materials, EarlyView.
This article provides a comprehensive overview of fundamentals and recent advances of transparent thin‐film surface acoustic wave technologies on glass substrates for monitoring and prevention/elimination of fog, ice, and frost. Fogging, icing, or frosting on optical lenses, optics/photonics, windshields, vehicle/airplane windows, and solar panel ...
Hui Ling Ong   +11 more
wiley   +1 more source

Anti-multipath digital signal detector [PDF]

open access: yes, 1974
Detector operates in conjunction with radio frequency portion of receiver to detect digital signals transmitted in known modulation formats. Signal is constructed by assigning known and distinct modulation waveforms to sequence of message symbols.
Painter, J. H.
core   +1 more source

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

open access: yes, 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   +73 more
core   +1 more source

Beyond Order: Perspectives on Leveraging Machine Learning for Disordered Materials

open access: yesAdvanced Engineering Materials, EarlyView.
This article explores how machine learning (ML) revolutionizes the study and design of disordered materials by uncovering hidden patterns, predicting properties, and optimizing multiscale structures. It highlights key advancements, including generative models, graph neural networks, and hybrid ML‐physics methods, addressing challenges like data ...
Hamidreza Yazdani Sarvestani   +4 more
wiley   +1 more source

The Use of the Digital Off-Air Radio Events Archive System EventsBNR in the Bulgarian National Radio

open access: yesDigital Presentation and Preservation of Cultural and Scientific Heritage, 2013
The paper describes the use of the system created for Digital off-air radio events archive EventsBNR in the Bulgarian National Radio. The system provides efficient application of modern information technologies in radio archiving.
Anelia Krandeva
doaj   +1 more source

Herschel-ATLAS: Far-infrared properties of radio-loud and radio-quiet quasars [PDF]

open access: yes, 2014
This is pre-copyedited, author-produced pdf of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The version of record, E.
Akritas   +126 more
core   +2 more sources

An Examination of Aerosol Jet‐Printed Surface Roughness and its Impact on the Performance of High‐Frequency Electronics

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores aerosol jet‐printed (AJP) surface roughness, its effects on the performance of microwave electronics, and its process contributors. First, an electromagnetic model is vetted for AJP's unique roughness signature. Simulations are built which show process‐induced roughness is as significant as conductor resistivity in driving microwave
Christopher Areias, Alkim Akyurtlu
wiley   +1 more source

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