Results 11 to 20 of about 14,713 (263)
Dynamics of Alfvén waves in the night-side ionospheric Alfvén resonator at mid-latitudes [PDF]
Annales Geophysicae, 2005 A numerical solution of the problem on dynamics of shear-mode Alfvén waves in the ionospheric Alfvén resonator (IAR) region at middle latitudes at nighttime is presented for a case when a source emits a single pulse of duration τ into ...
V. V. Alpatov +4 more
doaj +1 more source
Universe, 2023 In this study, we aim to analyze the electromagnetic interference (EMI) regarding the Five-hundred-meter Aperture Spherical radio Telescope (FAST) caused by base stations in the International Mobile Telecommunications-2000 (IMT-2000) frequency band.
Jian Wang +7 more
doaj +1 more source
Modelling of radio monitoring system of short-wave radio communication adaptive systems
Системный анализ и прикладная информатика, 2019 The structure of model which allows to spend an estimation of system functioning efficiency of radio monitoring system of short-wave radio communication adaptive systems in adverse conditions of influence of external jams is described.
B. A. Liakh +2 more
doaj +1 more source
IEEE Access, 2020 It is difficult to recognize Automatic Link Establishment (ALE) behaviors of a short-wave radio station, if we do not acquire the radio station's communication protocol standard.
Zilong Wu +3 more
doaj +1 more source
Effect of Some Meteorological Variables and Conditions on Mobile Phone and 'TV' Satellite Signal
Al-Mustansiriyah Journal of Science, 2021 The study aimed to seek for the effect of meteorological parameters and conditions on wave transport for both radio wave band that used by mobile phone communication and microwave band that used in 'TV' satellites by showing which atmospheric variable ...
Hussain Abodi Nemah +3 more
doaj +1 more source
Solar-Terrestrial Physics, 2016 We have considered the influence of the January 23–27, 2009 sudden stratospheric warming (SSW) event on HF radio wave propagation in the equatorial ionosphere. This event took place during extremely low solar and geomagnetic activity.
Kotova D.S. +5 more
doaj +1 more source
An Accurate Maritime Radio Propagation Loss Prediction Approach Employing Neural Networks
Remote Sensing, 2022 The radio propagation loss prediction model is essential for maritime communication. The oceanic tropospheric duct is much more complicated than the atmospheric structure on land due to the rough sea surface influence, and it leads to difficulties in ...
Shankun Shen +5 more
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An Inclusive Survey on Array Antenna Design for Millimeter-Wave Communications
IEEE Access, 2019 The enormous growth of wireless data traffic in recent years has made the millimeter-wave (mm-wave) technology as a good fit for high-speed communication systems. Extensive works are continuing from the device to system, to the radio architecture, to the
Saswati Ghosh, Debarati Sen
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Digital radio over fiber transmission technique for millimeter-wave radio access network
物联网学报, 2019 As the air interface standard of 5G confirms the millimeter wave as one important frequency band for the signal carrier,millimeter-wave communication is considered as the key technique to improve the transmission performance of the mobile communication ...
Jia YE, Jianwei LUO, Yi GUO, Wei PAN
doaj +2 more sources
Effect of terahertz irradiation on DNA damage repair in living cells
FEBS Open Bio, EarlyView.We investigated the effect of terahertz (THz) wave irradiation on DNA double‐strand break (DSB) repair in living cells. We found that THz irradiation enhanced DSB repair at specific frequencies, whereas heat treatment inhibited it, indicating that this effect is nonthermal and frequency‐specific.
Yuya Ueno +3 more
wiley +1 more source