Results 31 to 40 of about 216,585 (318)
Detection of acoustic-gravity waves in lower ionosphere by VLF radio waves [PDF]
Nina, A., and V. M. \v{C}ade\v{z} (2013), Detection of
acoustic-gravity waves in lower ionosphere by VLF radio waves, Geophys. Res.
Lett., 40, 4803-4807, 2017 We present a new method to study harmonic waves in the low ionosphere (60 - 90 km) by detecting their effects on reflection of very low frequency (VLF) radio waves. Our procedure is based on amplitude analysis of reflected VLF radio waves recorded in real time, which yields an insight into the dynamics of the ionosphere at heights where VLF radio waves
arxiv +1 more source
Engineering, 2022 In current wireless communication and electronic systems, digital signals and electromagnetic (EM) radiation are processed by different modules. Here, we propose a mechanism to fuse the modulation of digital signals and the manipulation of EM radiation ...
Xiang Wan +12 more
doaj
A new list of extra-galactic radio jets [PDF]
Published at A&A, 381, 757 (2002), 2002 A catalogue of extra-galactic jets is very useful both in observational and theoretical studies of active galaxies. With the use of new powerful radio instruments, the detailed structures of very compact or weak radio sources are investigated observationally and many new radio jets are detected.
arxiv +1 more source
An Automation System for Controlling Streetlights and Monitoring Objects Using Arduino
Sensors, 2018 We present an Arduino-based automation system to control the streetlights based on solar rays and object’s detection. We aim to design various systems to achieve the desired operations, which no longer require time-consuming manual switching of the
Zain Mumtaz +7 more
doaj +1 more source
LOFAR observations of radio burst source sizes and scattering in the solar corona [PDF]
A&A 645, A11 (2021), 2020 Low frequency radio wave scattering and refraction can have a dramatic effect on the observed size and position of radio sources in the solar corona. The scattering and refraction is thought to be due to fluctuations in electron density caused by turbulence.
arxiv +1 more source
Interaction of suprathermal solar wind electron fluxes with sheared whistler waves: fan instability [PDF]
Annales Geophysicae, 2003 Several in situ measurements performed in the solar wind evidenced that solar type III radio bursts were some-times associated with locally excited Langmuir waves, high-energy electron fluxes and low-frequency electrostatic and electromagnetic ...
C. Krafft, A. Volokitin
doaj +1 more source
The Effect of the Parametric Decay Instability on the Morphology of Coronal Type III Radio Bursts
The Astrophysical Journal Letters, 2023 The nonlinear evolution of Alfvén waves in the solar corona leads to the generation of Alfvénic turbulence. This description of the Alfvén waves involves parametric instabilities where the parent wave decays into slow mode waves giving rise to density ...
Chaitanya Prasad Sishtla +6 more
doaj +1 more source
On the Escape of Low-frequency Waves from Magnetospheres of Neutron Stars
The Astrophysical Journal, 2023 We study the nonlinear decay of the fast magnetosonic (fms) into the Alfvén waves in relativistic force-free magnetohydrodynamics. The work has been motivated by models of pulsar radio emission and fast radio bursts (FRBs), in which the emission is ...
Ephim Golbraikh, Yuri Lyubarsky
doaj +1 more source
Probing electromagnetic wave energy with an in-series assembly of thermoelectric devices
AIP Advances, 2022 We study the interaction of radio waves, microwaves, and infrared laser light of power P and period τ with a macroscopic thermoelectric (TEC) device-based detector and probe the energy Pτ as being the energy of these electromagnetic (EM) waves.
R. Joseph Rybarczyk +4 more
doaj +1 more source
Functional variation among LPMOs revealed by the inhibitory effects of cyanide and buffer ions
FEBS Letters, EarlyView.This study addresses the inhibition of lytic polysaccharide monooxygenases (LPMOs) by cyanide and explains how and why the magnitude of observed inhibitory effects depends on the way LPMO reactions are setup and on the type of LPMO. Enzymes known as lytic polysaccharide monooxygenases (LPMOs) are mono‐copper polysaccharide‐degrading peroxygenases that ...
Ole Golten +10 more
wiley +1 more source