Results 161 to 170 of about 3,117 (297)

Turbulence-Resistant Femtosecond Filaments via Nonlinear Self-Guiding and OAM Modulation. [PDF]

Sensors (Basel)
Liu J, Yang X, Jin W, Ren Z, Yang C, Shi T.   +5 more
europepmc   +1 more source

Absorption and translocation of 14C‐propiconazole associated with two adjuvants in young coffee plants

Pest Management Science, EarlyView.
Experimental workflow evaluating 14C‐propiconazole absorption and translocation in Coffea arabica with two biodegradable adjuvants, quantified at six post‐application time points using radioscanner and liquid scintillation spectrometry. Abstract BACKGROUND This study evaluated the absorption, translocation and distribution of 14C‐propiconazole applied ...
Valéria de Souza Ivo, Emerson Leite, José Mak, Valdemar Luiz Tornisielo, Kassio Ferreira Mendes   +4 more
wiley   +1 more source

A Tracking‐By‐Detection Framework to Automatically Count Rare and Elusive Megafauna in Aerial Video Surveys

Remote Sensing in Ecology and Conservation, EarlyView.
Monitoring programs of vulnerable megafauna increasingly rely on aerial surveys from drones or planes fitted with cameras. However, automated methods are still lacking to accurately count individuals across entire surveys. Here, we leverage a tracking‐by‐detection framework to not only detect individuals but also link the resulting detections across ...
Laura Mannocci, Auguste Verdier, Louis Bézard, Valentine Fleuré, Gerard Subsol, Marc Chaumont, David Mouillot   +6 more
wiley   +1 more source

Characteristics of VHF scintillations in the equatorial anomaly crest region in India

Annales Geophysicae
The characteristics of ionospheric scintillations at Rajkot in the equatorial anomaly crest region in India are described for the years 1987–1991 by monitoring the 244-MHz transmission from the satellite FLEETSAT.
K. N. Pathak, R. D. Jivrajani, H. P. Joshi, K. N. Iyer   +3 more
doaj  

Vertebral Artery Web as a Rare Cause of Ischemic Stroke in a Young Male. [PDF]

Ann Indian Acad Neurol
Kaur H, Singh R, Diehl D, Cerejo R.
europepmc   +1 more source

Digital Twin‐Based Optimization of Service Availability in LEO Mega Constellations Considering Handover Delays in Open RAN

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT As non‐terrestrial networks (NTNs) become integral to future 6G systems, ensuring seamless connectivity and service continuity over low Earth orbit (LEO) satellite constellations is essential. This work investigates the impact of open radio access network (RAN) functional splits on handover performance in NTNs, focusing on minimizing service ...
Siva Satya Sri Ganesh Seeram, Luca Feltrin, Mustafa Ozger, Cicek Cavdar   +3 more
wiley   +1 more source

Cognitive Radio-Based Ionospheric Scintillation Detection: A Low-Cost Framework for GNSS Detection and Monitoring in Equatorial Regions. [PDF]

Sensors (Basel)
Rodríguez JO, Dos Santos WA, Candido CN, Traslaviña DS, Tafur CL, Daza PM, Rodríguez Barón IF.   +6 more
europepmc   +1 more source

Updating datasets of ionospheric parameters provided by SCINDA GNSS receiver from Lisbon airport area with full data sets for 2014-2019. [PDF]

Data Brief, 2023
Morozova A, Barlyaeva T, Barata T.
europepmc   +1 more source

Three‐Year Propagation Experiment at Ku‐, Ka‐, and Q‐Band in French West Indies

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT From January 2021 to December 2023, the Office National d'Etudes et de Recherches Aérospatiales (ONERA) and the Centre National d'Etudes Spatiales (CNES) conducted a three‐year Earth‐space propagation measurement campaign in Guadeloupe. The experiment used beacon receivers deployed in Pointe‐à‐Pitre airport to record signals at 11.2, 19.7, and
Jean‐Pascal Monvoisin, Laurent Castanet, Laurent Féral, Xavier Boulanger   +3 more
wiley   +1 more source

Highly efficient photonic radar by incorporating MDM-WDM and machine learning classifiers under adverse weather conditions. [PDF]

PLoS One
Chaudhary S, Sharma A, Singh K, Khichar S, Malhotra J.   +4 more
europepmc   +1 more source