ENHANCEMENT OF BANDWIDTH AND BEAM FORMING ANTENNA ARRAYS IN 5G CELLULAR COMMUNICATION NETWORKS
ICTACT Journal on Communication Technology, 2022 In general, an antenna is an interface that transmits signal data and receives incoming signal data. The radio waves received through this interface help to do the necessary things for the transmitter and receiver circuit systems used there. Also a radio
Mohammad Shahnawaz Shaikh +3 more
doaj +1 more source
Source Regions of the Type II Radio Burst Observed During a CME-CME Interaction on 2013 May 22
, 2016 We report on our study of radio source regions during the type II radio burst on 2013 May 22 based on direction finding (DF) analysis of the Wind/WAVES and STEREO/WAVES (SWAVES) radio observations at decameter-hectometric (DH) wavelengths.
M. J. Reiner +4 more
core +1 more source
Numerical studies of the parameters of the perturbed region formed in the lower ionosphere under the action of a directed radio waves flux from a terrestrial source [PDF]
Компьютерные исследования и моделирование, 2018 The paper presents a physico-mathematical model of the perturbed region formed in the lower D-layer of the ionosphere under the action of directed radio emission flux from a terrestrial stand of the megahertz frequency range, obtained as a result of ...
Daria Sergeevna Moiseeva +2 more
doaj +1 more source
Physical processes behind the alignment effect
, 2004 The radio/optical alignment effect for small powerful radio galaxies has been shown to be produced by shock waves formed by the interaction of the head of the jet and/or cocoon with clouds embedded in the interstellar/intergalactic medium.
Hidalgo, JC, Mendoza, S
core +1 more source
Radio signature of cosmological structure formation shocks [PDF]
, 2006 In the course of the formation of cosmological structures, large shock waves are generated in the intra-cluster medium. In analogy to processes in supernova remnants, these shock waves may generate a significant population of relativistic electrons which,
Brueggen, Marcus, Hoeft, Matthias
core +3 more sources
Boundary Determination of Concealed Structure Region Based on Electromagnetic Tomography
Meikuang Anquan, 2020 To further explore the root cause of the high roof collapse phenomenon of the 1303 working face, the high-precision tunnel detection of the 1303 working face was carried out by electromagnetic wave fixed point method, and three sets of structural ...
QU Xiaobing, BAO Junrui
doaj +1 more source
The measurement of ionospheric absorption using extraterrestrial radio waves [PDF]
, 1957 Introduction: The discovery by Jansky in 1932 of the presence of radio waves incident upon the earth from outer space has led to several new methods of studying the earth's upper atmosphere.
Little, C. G.
core
Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation
FEBS Letters, EarlyView.Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz +11 more
wiley +1 more source
Wavelet analysis of the LF radio signals collected by the European VLF/LF network from July 2009 to April 2011 [PDF]
, 2012 In 2008, a radio receiver that works in very low frequency (VLF; 20-60 kHz) and LF (150-300 kHz) bands was developed by an Italian factory. The receiver can monitor 10 frequencies distributed in these bands, with the measurement for each of them of the ...
Arabelos, D.N. +13 more
core +2 more sources
AAA+ protein unfoldases—the Moirai of the proteome
FEBS Letters, EarlyView.AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley +1 more source