Results 81 to 90 of about 41,145 (313)

CHARACTERISTICS OF SEA SURFACE SCATTERING ELEMENTS UPON RADIO WAVES PROPAGATION AT SMALL GRAZING ANGLES [PDF]

open access: yesРадиофизика и электроника, 2019
Subject and purpose. The article is devoted to the simulation of the backscattering of the electromagnetic field on the sea surface in respect to the millimeter and centimeter ranges of radio wavelengths.
V. G. Gutnik   +2 more
doaj   +1 more source

Magnetic Control of Chiral Hybridized Phonon Magnetic Moments in Ferrimagnets Fe2‐xZnxMo3O8

open access: yesAdvanced Functional Materials, EarlyView.
Helicity‐resolved magneto‐Raman spectroscopy reveals magnetic control of chiral phonon magnetic moments in polar ferrimagnet (ZnxFe2−xMo3O₈). Large spontaneous zero‐field phonon splittings, selective phonon–magnon coupling, and asymmetric Zeeman responses demonstrate that phonon chirality is governed by magnon‐phonon coupling and magnetization.
Youngsu Choi   +8 more
wiley   +1 more source

A new method of studying the relation between ionization rates and radio-wave absorption in polar-cap absorption events [PDF]

open access: yes, 2005
International audienceDuring polar-cap absorption events, which are caused by the incidence of energetic solar protons, the high-latitude ionospheric D region is extended down to relatively low altitudes. While the incoming proton fluxes may be monitored
Hargreaves, J. K., J. K. Hargreaves
core   +1 more source

Exploring Curvature Effects in Direct‐Written 3D Curved Hollow Magnetic Nanoshells

open access: yesAdvanced Functional Materials, EarlyView.
Fabricated by a hybrid FEBID/CVD method, 3D PtC/Co3Fe core–shell heterostructures with engineered curvature and shell thickness exhibit complex reversal modes with axially symmetric N'eel‐type domain walls. XMCD‐PEEM combined with full‐scale micromagnetic simulations reveal how curvature and thickness govern the domain wall energy landscape and shape ...
Oleksii M. Volkov   +10 more
wiley   +1 more source

Radio After Radio: Redefining radio art in the light of new media technology through expanded practice [PDF]

open access: yes, 2015
I have been working in the field of radio art, and through creative practice have been considering how the convergence of new media technologies has redefined radio art, addressing the ways in which this has extended the boundaries of the art form.
Hall, Margaret A.
core  

Enhanced Terahertz Thermoelectricity Via Engineered Van Hove Singularities and Nernst Effect in Moiré Superlattices

open access: yesAdvanced Functional Materials, EarlyView.
Moiré band engineering in graphene/hexagonal boron nitride–based superlattices unlocks van Hove singularities (VHSs) for terahertz (THz) optoelectronics. Tuning the Fermi level near these singularities, associated with secondary neutrality points (SNPs), enhances the photothermoelectric response.
Leonid Elesin   +16 more
wiley   +1 more source

Effects of mobile phone radiation

open access: yesVojnotehnički Glasnik, 2000
This paper points out the effects of mobile phone radiation on a human organism. The existing standards are based on electromagnetic field thermal effects on a human organism.
Branislav Todorović   +2 more
doaj   +1 more source

Numerical simulation of the propagation of electromagnetic waves in ionospheric irregularities

open access: yesEarth and Planetary Physics, 2020
The characteristics of high-frequency (HF) electromagnetic (EM) wave propagation can be affected when EM waves propagate in the ionosphere. When ionospheric irregularities appear in the ionosphere, they can have a serious impact on the propagation of HF ...
ChunHua Jiang   +4 more
doaj   +1 more source

THE PRODUCTION OF DAMPED RADIO‐WAVES [PDF]

open access: yesSchool Science and Mathematics, 1920
n ...
openaire   +2 more sources

Emergent Topological Magnons and Thermal Hall Effect in 2D Filling‐Enforced Fully Compensated Ferrimagnets

open access: yesAdvanced Functional Materials, EarlyView.
Schematic illustration of ferroelectric‐intercalation‐driven transitions in magnetic configurations and magnonic topological phases, together with the symmetry relations of magnonic Berry curvature. ABSTRACT Magnons in collinear magnets with vanishing net magnetization offer unique advantages for spin transport, including ultrafast dynamics and ...
Yingxi Bai   +8 more
wiley   +1 more source

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