Results 51 to 60 of about 121,407 (297)

A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection

Advanced Engineering Materials, EarlyView.
A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan, Shuvra Saha, Sumit Hassan Eshan, Rinku Basak, Md. Nahian Al Subri Ivan, Ahmed Murtuza Saleque, Raja Tariqul Hasan Tusher, Sadia Zabin, Md. Abdur Rahman, Yuen Hong Tsang   +9 more
wiley   +1 more source

Effects of Molecular Adsorption on Optical Losses of the Ag (111) Surface

, 2009
The first principles density functional theory (DFT) is applied to study effects of molecular adsorption on optical losses of silver (111) surface. The ground states of the systems including water, methanol, and ethanol molecules adsorbed on Ag (111 ...
Gavrilenko, Alexander V., Gavrilenko, Vladimir I., McKinney, Carla S.   +2 more
core   +1 more source

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

Advanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin, Lienhard Wegewitz, René Gustus, Henning Wiche, Wolfgang Maus‐Friedrichs   +4 more
wiley   +1 more source

High‐frequency measurement of dielectric permittivity and antimicrobial properties of polyaniline and graphite oxide nanocomposites

IET Nanodielectrics, 2021
The polyaniline/graphite oxide (PANI/GO) nanocomposite was prepared by the in situ chemical polymerisation method. The synthesis involved the formation of dark green coloured polyaniline/graphite oxide composite.
Shubha L.N., ChandraBabu Putta
doaj   +1 more source

Barium Titanate/Gadolinium Ferrite: A New Material Composite to Store Energy

Nanomaterials, 2023
This work investigates the dielectric properties of barium titanate/gadolinium ferrite ceramic composites, with different concentrations of each material.
Clara Baivier, Imen Hammami, Ratiba Benzerga, Manuel P. F. Graça, Luís C. Costa   +4 more
doaj   +1 more source

Diffractionless propagation through Kapitza stratified media

, 2012
We show that in the presence of a rapidly modulated dielectric permittivity with a large modulation depth (Kapitza medium) a novel and robust regime of diffractionless electromagnetic propagation occurs. This happens when the mean value to depth ratio of
Ciattoni, Alessandro, Rizza, Carlo
core   +1 more source

Powder Optimization Strategies for Binder Jetting Printing of BaTiO3 and Ba0,6Sr0,4TiO3 Ceramics

Advanced Engineering Materials, EarlyView.
Powder optimization is investigated to enable binder jetting of BaTiO3 and Ba0.6Sr0.4TiO3 ferroelectric ceramics. The antagonistic relationship between flowability and binder compatibility is addressed through binder impregnation of granulated powders and fumed silica addition to fine powders.
Fanny Pruvost, Lionel Presmanes, Soléna Colin, Marie Vidal, Sophie Guillemet‐Fritsch   +4 more
wiley   +1 more source

Analysing Attenuation Losses of a Power Line Cable [PDF]

Journal of Electrical and Electronics Engineering
This research focuses on the determination of the channel frequency response losses for a length of power cable, which is crucial in determining the channel bandwidth performance. The parameters of the power line cable model are determined by measurement.
SHERI Ashraf, DE BEER Arnold S
doaj  

Electrophysical properties of the Rochelle salt dispersed in a porous dielectric matrix of type A zeolite

Physics of Complex Systems
Electrical conductivity, real part of dielectric permittivity and dielectric losses of a novel nanocomposite material obtained by the infiltration of a NaA zeolite matrix with Rochelle salt were studied in the frequency range from 100 Hz to 100 kHz.
Тамара Геннадьевна Матвеева, Марина Семеновна Иванова, Владимир Гаевич Соловьев, Александр Иванович Ванин   +3 more
doaj   +1 more source

Enhanced surface plasmon polariton propagation induced by active dielectrics [PDF]

, 2014
We present numerical simulations for the propagation of surface plasmon polaritons in a dielectric-metal-dielectric waveguide using COMSOL multiphysics software.
Athanasopoulos, C., Mattheakis, M., Tsironis, G. P.   +2 more
core   +2 more sources