Results 21 to 30 of about 67,750 (314)

Microwave absorption properties of Co, Cu, Zn: substituted hexaferrite polychloroprene nanocomposites

open access: yesMaterials Research, 2008
The magnetic behavior and its relationship with microwave absorbing properties have been investigated for doped Z-type barium hexaferrites (Ba3Co1.3Zn0.3Cu0.4Fe 24O41)/ polychloroprene (CR) nanocomposites.
Valeska da Rocha Caffarena   +3 more
doaj   +1 more source

Time-domain Reflectometry (TDR) technique for the estimation of soil permittivity [PDF]

open access: yes, 2011
Non
Ferraris, S.   +7 more
core   +1 more source

graphene's permittivity

open access: yes, 2020
graphene's permittivity at 3 ...
shen, L
core   +3 more sources

Effect of modifiers on the barium niobate-calcium ceramics structure

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2022
In this work, the ceramic samples Са0,3Ba0,7Nb2O6 pure and with modifying additives (5%) SrTiO3, KTaO3 or LiTaO3 were obtained by solid-phase synthesis. All studied compositions of ceramics revealed the presence of large and small grains.
O.S. Guseva   +2 more
doaj   +1 more source

Dielectric properties of CaCu3Ti4O12 based multiphased ceramics [PDF]

open access: yes, 2006
A “soft chemistry” method, the coprecipitation, has been used to synthesize the perovskite CaCu3Ti4O12 (CCT). Three main types of materials were obtained for both powders and sintered ceramics: a monophased consisting of the pure CCT phase, a biphased ...
Durand, Bernard   +4 more
core   +1 more source

Low permittivity epoxy nanoporous composites filled with hollow nanosilica

open access: yesIET Nanodielectrics, 2019
An epoxy nanoporous composite (NPC) filled with hollow nanosilica exhibits lower permittivity than unfilled epoxy resin. The hollow nanosilica is a silica nanoparticle containing a nanometric closed pore.
Muneaki Kurimoto   +5 more
doaj   +1 more source

Permittivity Extraction of Glucose Solutions Through Artificial Neural Networks and Non-invasive Microwave Glucose Sensing [PDF]

open access: yes, 2018
An accurate low-cost method is presented for measuring the complex permittivity of glucose/water solutions. Moreover, a compact non-invasive RF/microwave sensor is presented for glucose sensing with the reasoning behind design parameters as well as ...
Kale, I., Turgul, V.
core   +1 more source

Microwave dielectric properties of horticultural peat products [PDF]

open access: yesMires and Peat, 2007
The microwave dielectric properties of horticultural peat and compost peat were measured with a HP85107C network analyser in conjunction with a HP85070B open-ended coaxial dielectric probe for the frequency range 0.5–20 GHz.
G. Ayalew, N.M. Holden, S.M. Ward
doaj  

Microwave Interferometry Based On Open-ended Coaxial Technique for High Sensitivity Liquid Sensing

open access: yesAdvanced Electromagnetics, 2017
This paper describes a modified open-ended coaxial technique for microwave dielectric characterization in liquid media. A calibration model is developed to relate the measured transmission coefficient to the local properties of the sample under test.
H. Bakli, K. Haddadi
doaj   +1 more source

Processing Radargrams to Obtain Resistivity Sections

open access: yesRemote Sensing, 2022
Ground penetrating radar (GPR) is routinely used to locate the isolated elements that produce reflection hyperbolas in radargrams. However, we propose a method in this study for locating the various interfaces appearing in a medium by studying the signal
Lucía Arévalo-Lomas   +3 more
doaj   +1 more source

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