Results 41 to 50 of about 199,086 (341)
Complex effective permittivity of a lossy composite material [PDF]
, 1996 In recent work, boundary integral equations and finite elements were used to study the (real) effective permittivity for two-component dense composite materials in the quasistatic limit.
Beroual, Abderrahmane +3 more
core +3 more sources
Search of mode wavelengths in planar waveguides by using Fourier transform of wave equation
Semiconductor Physics, Quantum Electronics & Optoelectronics, 2016 The article describes a numerical method based on Fourier transform for studying propagating optical waves in dielectric planar waveguides. The inverse problem to the known direct one in waveguide investigation is proposed, namely a search of light ...
V.M. Fitio
doaj +1 more source
Dielectric and polarization experiments in high loss dielectrics: a word of caution
, 2008 The recent quest for improved functional materials like high permittivity dielectrics and/or multiferroics has triggered an intense wave of research. Many materials have been checked for their dielectric permittivity or their polarization state.
Lines M. E. +5 more
core +4 more sources
The Effect on Wireless Sensor Communication When Deployed in Biomass
Sensors, 2011 Wireless sensor networks (WSN) have been studied in a variety of scenarios over recent years, but work has almost exclusively been done using air as the transmission media.
Thomas Skjødeberg Toftegaard +3 more
doaj +1 more source
THE ANOMALOUS RISE OF CAPACITANCE OF C60 FULLERITE FILMS AT LOW FREQUENCIES: A CAUSE ANALYSIS
St. Petersburg Polytechnical University Journal: Physics and Mathematics, 2021 A known physical fact of the anomalous rise of dielectric permittivity ε of C60 fullerite films at ac low frequencies (below 1 kHz) has not had a convincing explanation up to now. Our study was aimed at elucidating the causes of that anomaly.
Dolzhenko Dmitry +2 more
doaj +1 more source
Coexistence of the Critical Slowing Down and Glassy Freezing in Relaxor Ferroelectrics
, 1999 We have developed a dynamical model for the dielectric response in relaxor ferroelectrics which explicitly takes into account the coexistence of the critical slowing down and glassy freezing.
A. Levstik +23 more
core +1 more source
Nanodielectrics with giant permittivity [PDF]
Bulletin of Materials Science, 2008 Nanodielectrics is an emerging area of research because of its potential application in energy storage and transducers. One-dimensional metallic nanostructures with localized electronic wave functions show giant dielectric constant. Following the prediction, during the last couple of years we have investigated the effect of giant permittivity in one ...
openaire +2 more sources
Advanced Engineering Materials, EarlyView.Highly textured CeO2 nanowires and nanoporous thin films are successfully synthesized by water dissolution of Sr3Al2O6 (SAO) from the SAO:CeO2 vertically aligned nanocomposites (VANs). The morphology of CeO2 can be varied by VAN composition. It demonstrates a new method for synthesizing nanostructured CeO2 without chemical etching or complex micro ...
Benson Kunhung Tsai +8 more
wiley +1 more source
EM-Wave Biosensors: A Review of RF, Microwave, mm-Wave and Optical Sensing
Sensors, 2019 This article presents a broad review on optical, radio-frequency (RF), microwave (MW), millimeter wave (mmW) and terahertz (THz) biosensors. Biomatter-wave interaction modalities are considered over a wide range of frequencies and applications such as ...
Parikha Mehrotra +2 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.This study presents a multimodal characterization method for a prototype metamaterial model structure that features four distinct states of mechanical stiffness and electrical resistivity. Through simulations and experiments, it uncovers insights into the structural behavior, the correlation between changes in electrical resistivity and mechanical ...
Rebecca Kose +3 more
wiley +1 more source