Results 11 to 20 of about 309,783 (297)
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 +8 more
doaj +1 more source
Rapid interstellar scintillation of PKS B1257-326: two-station pattern time delays and constraints on scattering and microarcsecond source structure [PDF]
, 2006 We report measurements of time delays of up to 8 minutes in the centimeter wavelength variability patterns of the intra-hour scintillating quasar PKS 1257-326 as observed between the VLA and the ATCA on three separate epochs.
Anastasios K. Tzioumis +7 more
core +2 more sources
Drones and global navigation satellite systems: current evidence from polar scientists [PDF]
Royal Society Open Science, 2020 Aerial unmanned vehicles, so-called drones, present a paradigm shift away from the long-term use by scientists of manned aeroplanes and helicopters. This is evident from the number of research articles that focus on data obtained with drones.
Iain Sheridan
doaj +1 more source
Study of scintillation in natural and synthetic quartz and methacrylate [PDF]
, 2014 Samples from different materials typically used as optical windows or light guides in scintillation detectors were studied in a very low background environment, at the Canfranc Underground Laboratory, searching for scintillation. A positive result can be
Amare, J. +17 more
core +2 more sources
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 +3 more
doaj +1 more source
New Measurement of the Relative Scintillation Efficiency of Xenon Nuclear Recoils Below 10 keV [PDF]
, 2009 Liquid xenon is an important detection medium in direct dark matter experiments, which search for low-energy nuclear recoils produced by the elastic scattering of WIMPs with quarks.
A. Manalaysay +15 more
core +2 more sources
Flexible composite scintillators based on ZnWO4 micro- and nanopowders
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2019 Nano-sized and micro-sized ZnWO4 powders were obtained by different methods: hydrothermal synthesis with microwave heating, molten salt method, solid-state synthesis and сrushing of bulk crystals.
V. Tinkova +5 more
doaj +1 more source
The Effect of Midnight Temperature Maximum Winds on Post‐Midnight Equatorial Spread F
Space Weather, 2021 The SAMI3/equatorial spread F (Sami3 is also a model of the ionosphere/ESF) code is used to simulate the growth of equatorial plasma bubbles in the presence of a background wind field based on measured winds.
J. Krall +3 more
doaj +1 more source
Microarcsecond Radio Imaging using Earth Orbit Synthesis
, 2001 The observed interstellar scintillation pattern of an intra-day variable radio source is influenced by its source structure. If the velocity of the interstellar medium responsible for the scattering is comparable to the earth's, the vector sum of these ...
Cornwell T. J. +6 more
core +6 more sources
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 +13 more
doaj +1 more source