Results 11 to 20 of about 752,257 (272)

High-speed ghost imaging by an unpredictable optical phased array

open access: yesFrontiers in Physics, 2022
Ghost imaging (GI) retrieves an image from the correlation between a sequence of illumination patterns on the object and their corresponding bucket detections.
Xuyang Sun   +10 more
doaj   +1 more source

Applicability of point dipoles approximation to all-dielectric metamaterials [PDF]

open access: yes, 2015
All-dielectric metamaterials consisting of high-dielectric inclusions in a low-dielectric matrix are considered as a low-loss alternative to resonant metal-based metamaterials.
Andryieuski, A.   +2 more
core   +2 more sources

Crossover from normal to diffused and relaxor ferroelectric in BaZrO3-modified (Ba0.85Ca0.15)TiO3 ceramics

open access: yesJournal of Materiomics, 2021
The variation of dielectric, ferroelectric and piezoelectric characteristics of BaZrO3–modified (Ba0.85Ca0.15)TiO3 ceramics, (1-x)(Ba0.85Ca0.15)TiO3-xBaZrO3, have been investigated together with the structure evolution.
Shao Bo Chen   +3 more
doaj   +1 more source

Recent Advances in Co3O4-Based Composites: Synthesis and Application in Combustion of Methane

open access: yesNanomaterials, 2023
In recent years, it has been found that adjusting the organizational structure of Co3O4 through solid solution and other methods can effectively improve its catalytic performance for the oxidation of low concentration methane.
Xinfang Wei   +7 more
doaj   +1 more source

Thickness and dielectric constant determination of thin dielectric layers [PDF]

open access: yes, 1993
We derive a method for the determination of the dielectric constant and thickness of a thin dielectric layer, deposited on top of a thick dielectric layer which is in turn present on a metal film.
de Bruijn, H.E.   +4 more
core   +3 more sources

Dielectric-branes [PDF]

open access: yesJournal of High Energy Physics, 1999
33 pages, Latex, 2 ref.'s added, few typo's ...
openaire   +2 more sources

CaCu3Ti4O12 ceramics from co-precipitation method: Dielectric properties of pellets and thick films [PDF]

open access: yes, 2009
Dielectric properties of CaCu3Ti4O12 (CCTO)-based ceramics and thick films (e ∼50m) prepared from powders synthesized by a soft chemistry method (co-precipitation) are presented and discussed.
Barbier, Bertrand   +7 more
core   +3 more sources

Dielectric properties of interacting storage ring plasmas [PDF]

open access: yes, 1998
A dielectric function including collisional correlations is derived by linearizing the self consistent Vlasov equation with a Fokker-Planck collision integral.
Morawetz, K., Selchow, A.
core   +2 more sources

A novel sol–gel route to synthesize (Sr0.5Ba0.5)Nb2O6 ceramics with enhanced electrocaloric effect [PDF]

open access: yesJournal of Advanced Dielectrics, 2017
(Sr0.5Ba0.5)Nb2O6 ultra-fine powders were synthesized by a novel sol–gel route, and the mechanism of the reaction was discussed. SrCO3, BaCO3, oxalate niobium and citric acid were used to initiate the sol–gel process, and ethylene glycol (EG) was added ...
Ting Chen   +3 more
doaj   +1 more source

Quantum Monte Carlo study of static potential in graphene [PDF]

open access: yes, 2017
In this paper the interaction potential between static charges in suspended graphene is studied within the quantum Monte Carlo approach. We calculated the dielectric permittivity of suspended graphene for the set of temperatures and extrapolated our ...
Astrakhantsev, N. Yu.   +4 more
core   +2 more sources

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