Results 41 to 50 of about 838,830 (124)

Using acoustic monitoring to reveal nearly year‐round presence of humpback whales (Megaptera novaeangliae) in the waters of southern Iceland

open access: yesMarine Mammal Science, Volume 41, Issue 2, April 2025.
Abstract Icelandic waters are a crucial feeding ground for North Atlantic humpback whales, yet their occurrence in these subarctic waters remains underexplored. This study examined seasonal and diel patterns in humpback whale occurrence off the Vestmannaeyjar archipelago, southern Iceland, from June 2018 to May 2019, using automated acoustic detections
Carola Chicco   +4 more
wiley   +1 more source

Effectiveness of mass marking of juvenile sterlet (Acipenser ruthenus) with alizarin red S stain on field detection

open access: yesFisheries Management and Ecology, Volume 32, Issue 1, February 2025.
Abstract Sterlet (Acipenser ruthenus), one of the last sturgeons in the Danube basin, is regularly stocked in national and international restoration programs, but the efficacy of stocking has not yet been evaluated. Effectiveness of stocking should involve marking and evaluating growth and survival of juveniles.
Martin Šindler   +4 more
wiley   +1 more source

Data collection in IoT networks: Architecture, solutions, protocols and challenges

open access: yesIET Wireless Sensor Systems, Volume 14, Issue 4, Page 85-110, August 2024.
Current IoT data collection techniques are categorised and a comparative evaluation of these methods is performed based on the topics analysed and elaborated by the authors. In addition, a comprehensive analysis of recent advances in IoT data collection is provided, highlighting different data types and sources, transmission protocols from connected ...
Ado Adamou Abba Ari   +6 more
wiley   +1 more source

A wireless, remotely operable and easily customizable robotic flower system

open access: yesMethods in Ecology and Evolution, Volume 15, Issue 8, Page 1312-1324, August 2024.
Abstract Understanding the complex interactions between external and internal factors that influence pollinator foraging behaviour is essential to understand ecosystem functioning, design agricultural practices or develop effective conservation strategies. However, it remains challenging to collect large and reliable data sets with reasonable personnel
Kamiel Debeuckelaere   +5 more
wiley   +1 more source

Reconfigurable Harmonic RF Transponder for Proximity Detection

open access: yes, 2023
Proximity detection systems have witnessed a remarkable growth in interest in the past years. In fact, particularly with the COVID-19 outbreak, social distancing in public areas and workplaces has become a norm, and human proximity monitoring became a ...
Cheaito, Karim
core  

Reducing Harmonic Voltage At Industrial Area Distribution Network Using Network Configuration Management [TK1007. S526 2008 f rb]. [PDF]

open access: yes, 2008
Syarikat pembekal elektrik diperlukan untuk mengekalkan tahap voltan harmonik di dalam sistem di bawah batas piawaian. Electric utility company is required to maintain harmonic voltage level in the system below the standard’s ...
Latif, Mohd Shahed
core   +1 more source

Evaluating harvest incentives for suppressing a socially‐valued, but ecologically‐detrimental, invasive fish predator

open access: yesFisheries Management and Ecology, Volume 31, Issue 4, August 2024.
Abstract The legacy of intentional freshwater fish introductions across the western United States has fostered social tensions over the control of nonnative species in some contexts. Overcoming tensions and implementing effective control programs is important for mitigating impacts to native species.
Adam G. Hansen   +3 more
wiley   +1 more source

Pollinator‐assisted plant phenotyping, selection, and breeding for crop resilience to abiotic stresses

open access: yesThe Plant Journal, Volume 119, Issue 1, Page 56-64, July 2024.
SUMMARY Food security is threatened by climate change, with heat and drought being the main stresses affecting crop physiology and ecosystem services, such as plant–pollinator interactions. We hypothesize that tracking and ranking pollinators' preferences for flowers under environmental pressure could be used as a marker of plant quality for ...
Francisco Pérez‐Alfocea   +6 more
wiley   +1 more source

Community Response to Habitat Restoration in Sickle and Bear Creeks, with Emphasis on Mottled Sculpin in Sickle Creek [PDF]

open access: yes, 2008
Habitat restoration is employed by biologists and managers to improve the natural functionality and value of aquatic resources. Systems suffer impairment from many sources, including excessive fine sediment, which negatively affects substrate composition,
DeBoer, Jason Andrew
core  

Active Power Filter With Automatic Control Circuit For Neutral Current Harmonic Minimization Technique [QC446.3.H37 I98 2007 f rb]. [PDF]

open access: yes, 2007
Disertasi ini bertujuan untuk membangun penuras kuasa aktif yang cekap dan boleh dipercayai bagi meminimumkan lebihan harmonik arus neutral dan juga masalah harmonik di dalam talian neutral untuk sistem tiga fasa empat dawai. The aim of this thesis
A Bakar, Mohd Izhar
core   +1 more source

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