Results 11 to 20 of about 122,808 (242)

Reactive oxygen species generation in aqueous solutions containing GdVO4:Eu3+ nanoparticles and their complexes with methylene blue

Nanoscale Research Letters, 2018
It this letter, we report the study of free radicals and reactive oxygen species (ROS) generation in water solutions containing gadolinium orthovanadate GdVO4:Eu3+ nanoparticles (VNPs) and their complexes with methylene blue (MB) photosensitizer.
Kateryna Hubenko, Svetlana Yefimova, Tatyana Tkacheva, Pavel Maksimchuk, Igor Borovoy, Vladimir Klochkov, Nataliya Kavok, Oleksander Opolonin, Yuri Malyukin   +8 more
doaj   +1 more source

Analysis of Ionospheric Scintillation Characteristics in Sub-Antarctica Region with GNSS Data at Macquarie Island

Sensors, 2017
Ionospheric scintillation has a great impact on radio propagation and electronic system performance, thus is extensively studied currently. The influence of scintillation on Global Navigation Satellite System (GNSS) is particularly evident, making GNSS ...
Kai Guo, Yang Liu, Yan Zhao, Jinling Wang   +3 more
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Towards the possibility to combine LOFAR and GNSS measurements to sense ionospheric irregularities

Journal of Space Weather and Space Climate, 2023
Inhomogeneities within the ionospheric plasma density affect trans-ionospheric radio signals, causing radio wave scintillation in the amplitude and phase of the signals.
Flisek Paweł, Forte Biagio, Fallows Richard, Kotulak Kacper, Krankowski Andrzej, Bisi Mario, Mevius Maaijke, Froń Adam, Tiburzi Caterina, Soida Marian, Śmierciak Bartosz, Grzesiak Marcin, Matyjasiak Barbara, Pożoga Mariusz, Dąbrowski Bartosz, Mann Gottfried, Vocks Christian, Zucca Pietro, Błaszkiewicz Leszek   +18 more
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Composite scintillators based on ZnWO4:Me+ micropowders obtained by solid-state synthesis

Vìsnik Harkìvsʹkogo nacìonalʹnogo unìversitetu ìmenì V.N. Karazìna. Serìâ: fìzika., 2022
The paper considers the possibility of using the method of heterovalent doping to improve the functional characteristics (light output and afterglow level) of composite scintillators based on ZnWO4 micropowder obtained by solid-stase synthesis.
V.S. Tinkova, I.A. Tupitsyna, A.G. Yakubovskaya, L. Yu. Sidelnikova, S.O. Tretiyak, O.D. Opolonin   +5 more
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Time Series Irradiance Synthesizer for Optical GEO Satellite Downlinks in 5G Networks

Future Internet, 2019
Next generation 5G networks generate a need for broadband, low latency and power efficient backhauling and data-relay services. In this paper, optical satellite communications links, as an integrated component of 5G networks, are studied.
Theodore T. Kapsis, Nikolaos K. Lyras, Charilaos I. Kourogiorgas, Athanasios D. Panagopoulos   +3 more
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Ce3+:Lu3Al5O12–Al2O3 optical nanoceramic scintillators elaborated via a low-temperature glass crystallization route

Journal of Advanced Ceramics, 2023
Transparent Ce:lutetium aluminum garnet (Ce:Lu3Al5O12, Ce:LuAG) ceramics have been regarded as potential scintillator materials due to their relatively high density and atomic number (Zeff).
Jie Fu, Shaowei Feng, Yongchang Guo, Ying Zhang, Cécile Genevois, Emmanuel Veron, Mathieu Allix, Jianqiang Li   +7 more
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METHOD OF AN ESTIMATION OF INFLUENCE ANISOTROPIC IRREGULARITIES IN AN IONOSPHERE ON CHARACTERISTICS OF THE CHANNEL OF A SATELLITE COMMUNICATION

Вестник Северо-Кавказского федерального университета, 2022
In the article action of the anisotropic irregularities in an ionosphere on a satellite channel is investi- gated. Relations between the exponent, characterising depth of fadings in a communication channel, with sta- tistical performances of the ...
Vyacheslav Anatolievich Shevchenko
doaj  

Role of the Dilution of the Gd Sublattice in Forming the Scintillation Properties of Quaternary (Gd,Lu)₃Al₂Ga₃O₁₂: Ce Ceramics

Crystals, 2022
Technological factors and processes contributing to the scintillation mechanism have been considered in quaternary garnet ceramics doped with Ce(Gd,Lu)3Al2Ga3O12.
Mikhail Korzhik, Vasilii Retivov, Alexei Bondarau, Georgiy Dosovitskiy, Valery Dubov, Irina Kamenskikh, Petr Karpuk, Daria Kuznetsova, Valentina Smyslova, Vitaly Mechinsky, Vladimir Pustovarov, Dmitry Tavrunov, Evgeniy Tishchenko, Andrei Vasil’ev   +13 more
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The ionosphere prediction service prototype for GNSS users

Journal of Space Weather and Space Climate, 2019
The effect of the Earth’s ionosphere represents the single largest contribution to the Global Navigation Satellite System (GNSS) error budget and abnormal ionospheric conditions can impose serious degradation on GNSS system functionality, including ...
Vadakke Veettil Sreeja, Cesaroni Claudio, Aquino Marcio, De Franceschi Giorgiana, Berrili Francesco, Rodriguez Filippo, Spogli Luca, Del Moro Dario, Cristaldi Alice, Romano Vincenzo, Ronchini Roberto, Di Rollo Stefano, Guyader Eric, Aragon-Angel Angela   +13 more
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Effects of Atmospheric Turbulence on Optical Wireless Communication in NEOM Smart City

Photonics, 2022
The foundation of any smart city requires an innovative and robust communication infrastructure. Many research communities envision free-space optical communication (FSO) as a promising backbone technology for the services and applications provided by ...
Ayshah S. Alatawi, Albashir A. Youssef, Mohamed Abaza, Mohammad Ammad Uddin, Ali Mansour   +4 more
doaj   +1 more source