Results 81 to 90 of about 82,391 (273)

A news video retrieval framework for the study of implicit relevance feedback. [PDF]

open access: yes, 2007
In this paper, we propose a framework for recording, analysing, indexing and retrieving news videos such as the BBC one o'clock news. We believe that such a framework will be useful to identify implicit indicators of relevance, a nearly untouched area in
Hopfgartner, F., Jose, J.M.
core   +2 more sources

Time and phase alignment of distributed gateways: Theoretical analysis and experimental demonstration

open access: yesInternational Journal of Satellite Communications and Networking, Volume 44, Issue 1, Page 47-59, January/February 2026.
The performance limitation in multiple‐input multiple‐output (MIMO) feeder links due to time and phase misalignment of the ground stations is investigated. Time and phase distribution over optical fiber is considered as an approach to achieve the synchronization requirements.
Eriserdi Mollaymeri   +2 more
wiley   +1 more source

5G new radio multiuser precoding in geostationary satellite networks

open access: yesInternational Journal of Satellite Communications and Networking, Volume 44, Issue 1, Page 60-72, January/February 2026.
This work evaluates the standardized 5G new radio codebooks for closed‐loop multiuser precoding in GEO multibeam scenarios and derives a list of recommended 3GPP standard modifications for a proper support to GEO mission needs. Summary The multiuser precoding procedures standardized by the 3rd Generation Partnership Project (3GPP) for new radio (NR ...
Xavier Artiga, Miguel Ángel Vázquez
wiley   +1 more source

Measurements of Medium Wave HD Radio Reception in a Dense Urban Region

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications
This paper presents the results of measurements of medium wave received field strength, HD Radio audio quality and maximum coverage distances in a dense urban region.
M.P.C. Almeida   +5 more
doaj   +1 more source

Of walls and floors: how physical structures affect mating song detection in stridulating orthopterans

open access: yesEcological Entomology, Volume 51, Issue 1, Page 141-152, February 2026.
Schematic representation of the experimental settings for one field type. Each setting was assigned one of the three treatments (i.e., walls, floors, or control). Each treatment contained an AudioMoth™ (circle), either positioned close to the ground (5 cm) or elevated (60 cm), acting as a receiver organism. Abstract Sensory ecology theory proposes that
Laurie Provençal, Raphaël Proulx
wiley   +1 more source

Embedding ISRC Identifiers in Broadcast Wave Audio Files [PDF]

open access: yes, 2014
A recent initiative by the UK Music Producers Guild and the European Broadcasting Union is to utilize the Broadcast Wave (BWF) file format for commercial music releases, allowing the International Standard Recording Code (ISRC) to be embedded within the ...
Grint, B.   +5 more
core  

Frogs With a Southern Drawl: Wide Recognition Space Facilitates Heterospecific Aggression in Territorial Cricket Frogs

open access: yesEthology, Volume 132, Issue 2, Page 127-139, February 2026.
Northern cricket frogs (Acris crepitans) are sympatric throughout much of their range with their congener, Acris gryllus, and have overlapping call properties. We used field playback experiments to test to what extent A. crepitans males exhibit species recognition between these graded signals. Male A.
Julia L. Drennan, James P. Tumulty
wiley   +1 more source

Revealing the New Culture of Radio Broadcasting: An Analysis of Changes in the Production, Distribution, and Consumption of Radio Programs

open access: yesSociety
This study explores the emergence of a new culture within the radio broadcasting industry, focusing on transformations in radio programs' production, distribution, and consumption.
Ronny Yudhi Septa Priana   +2 more
doaj   +1 more source

Internet Radio: A New Engine for Content Diversity? [PDF]

open access: yes, 2001
While traditional radio stations are subject to extensive government regulations, Internet radio stations remain largely unregulated. As Internet radio usage has increased certain stakeholders have begun to argue that these Internet radio broadcasters ...
Compaine, Benjamin, Smith, Emma
core   +2 more sources

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