Results 31 to 40 of about 49,853 (298)

Trapped mode resonances in metalo-dielectric structures with electric asymmetry materials [PDF]

open access: yes, 2011
This paper investigates the possibility of exciting high quality trapped resonant modes on frequency selective surfaces consisting of identical sub-wavelength metallic inclusions (symmetrically split rings) with no structural asymmetry but exhibitting ...
A. Ourir   +4 more
core   +1 more source

Numerical Analysis of Three-Dimensional Proton Exchange Membrane Fuel Cell with Spiral Channels [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering
We introduce a 3D methodology based on the Finite Volume Method to solve the governing equations of the Proton Exchange Membrane Fuel Cell with a spiral gas channel design. These equations were evaluated in both the anode and cathode gas channels.
Sepehr Senfi   +3 more
doaj   +1 more source

Rocket-borne investigation of auroral patches in the evening sector during substorm recovery [PDF]

open access: yesAnnales Geophysicae, 2003
On 11 February 1997 at 08:36 UT after a substorm onset the Auroral Turbulence 2 sounding rocket was launched from Poker Flat Research Range, Alaska into a moderately active auroral region.
M. A. Danielides   +2 more
doaj   +1 more source

Enhanced fano resonance of organic material films deposited on arrays of asymmetric split-ring resonators (A-SRRs) [PDF]

open access: yes, 2013
Depositing very thin organic films on the surface of arrays of asymmetric split-ring resonators (A-SRRs) produces a shift in their resonance spectra that can be utilized for sensitive analyte detection.
Aizpurua   +20 more
core   +1 more source

Kramers Weyl Semimetals as Quantum Solenoids and Their Applications in Spin-Orbit Torque Devices

open access: yes, 2021
Kramers Weyl semimetals are Weyl semimetals that have Weyl points pinned at the time reversal invariant momenta. Recently it has been discovered that all chiral crystals host Weyl points at time reversal invariant momenta, so metals with chiral lattice ...
He, Wen-Yu, Law, K. T., Xu, Xiao Yan
core   +1 more source

Anomalous transport properties of Dirac and Weyl semimetals [PDF]

open access: yes, 2018
In this review we discuss a wide range of topological properties of electron quasiparticles in Dirac and Weyl semimetals. Their nontrivial topology is quantified by a monopole-like Berry curvature in the vicinity of Weyl nodes, as well as by the energy ...
Gorbar, E. V.   +3 more
core   +2 more sources

The effect of E-region wave heating on electrodynamical structures [PDF]

open access: yesAnnales Geophysicae, 2005
We show that heating by large amplitude E-region plasma waves at high latitudes can at times substantially enhance the electro-dynamical response of the ionosphere.
J.-M. A. Noël   +2 more
doaj   +1 more source

The Electric Arc [PDF]

open access: yesPhysical Review (Series I), 1904
n ...
openaire   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

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