Results 21 to 30 of about 164,436 (341)
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
Composite scintillators based on ZnWO4:Me+ micropowders obtained by solid-state synthesis
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 +5 more
doaj +1 more source
The ionosphere prediction service prototype for GNSS users
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
Drones and global navigation satellite systems: current evidence from polar scientists [PDF]
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
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 +7 more
doaj +1 more source
The Hunga–Tonga volcano eruption at 04:14:45 UT on 15 January 2022 produced various waves propagating globally, disturbing the background atmosphere and ionosphere.
Sun Wenjie +10 more
doaj +1 more source
Time Series Irradiance Synthesizer for Optical GEO Satellite Downlinks in 5G Networks
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 +3 more
doaj +1 more source
Metal Halide Perovskite Nanosheet for X-ray High-Resolution Scintillation Imaging Screens.
Scintillators, which are capable of converting ionizing radiation into visible photons, are an integral part of medical, security, and commercial diagnostic technologies such as X-ray imaging, nuclear cameras, and computed tomography.
Yuhai Zhang +14 more
semanticscholar +1 more source
X-ray Scintillation in Lead Halide Perovskite Crystals [PDF]
Current technologies for X-ray detection rely on scintillation from expensive inorganic crystals grown at high-temperature, which so far has hindered the development of large-area scintillator arrays. Thanks to the presence of heavy atoms, solution-grown
M. Birowosuto +6 more
semanticscholar +1 more source
Leveraging Geodetic GPS Receivers for Ionospheric Scintillation Science
We demonstrate scintillation analysis from a network of geodetic Global Positioning System (GPS) receivers which provide data at 1‐second resolution. We introduce proxy phase (σTEC) and amplitude (SNR4) scintillation indices and validate them against the
S. Mrak +5 more
semanticscholar +1 more source

