Results 31 to 40 of about 3,811,787 (369)

Electro-purification studies and first measurement of relative permittivity of TMBi [PDF]

open access: hybridJournal of Instrumentation, 2022
Abstract A new type of detector for positron-emission tomography (PET) has been proposed recently, using a heavy organo-metallic liquid — TriMethyl Bismuth (TMBi) — as target material. TMBi is a transparent liquid with the high Z element Bismuth contributing 82% of its mass.
S. Peters   +8 more
openalex   +4 more sources

relative permittivity, ɛr [PDF]

open access: hybrid, 2008
Citation: 'relative permittivity' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.R05273 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.

openalex   +2 more sources

Deep-Learning-Based Method for Estimating Permittivity of Ground-Penetrating Radar Targets

open access: yesRemote Sensing, 2022
Correctly estimating the relative permittivity of buried targets is crucial for accurately determining the target type, geometric size, and reconstruction of shallow surface geological structures.
Hui Wang   +4 more
doaj   +1 more source

The Impact of Atmospheric Parameters on the Dielectric Permittivity Values of SikaBlock®-M150 and Other Rigid Polyurethane Foams Measured with a Capacitive One-Side Access Sensor

open access: yesSensors, 2022
A shortage of research on the impact of atmospheric parameters on the measured dielectric permittivity values of rigid polyurethane (PU) foams was identified.
Ilze Beverte   +3 more
doaj   +1 more source

The induced permittivity increment of electrorheological fluids in an applied electric field in association with chain formation: A Brownian Dynamics simulation study [PDF]

open access: yesPhys. Rev. E 103, 062608 (2021), 2021
We report Brownian Dynamics simulation results for the relative permittivity of electrorheological (ER) fluids in an applied electric field. The relative permittivity of an ER fluid can be calculated from the Clausius-Mosotti (CM) equation in the small applied field limit.
arxiv   +1 more source

Physics Assisted Deep Learning for Indoor Imaging using Phaseless Wi-Fi Measurements [PDF]

open access: yes, 2021
A physics assisted deep learning framework to perform accurate indoor imaging using phaseless Wi-Fi measurements is proposed. It is able to image objects that are large (compared to wavelength) and have high permittivity values, that existing radio frequency (RF) inverse scattering techniques find very challenging, making it suitable for indoor RF ...
arxiv   +1 more source

Measurement of the effective relative permittivities of microstrip

open access: yesElectronics Letters, 1975
A new method for determining the effective relative permittivity of microstrip, even at high frequencies, is presented. Four microstrips having the same physical and geometric characteristics, but different lengths, are needed; the mismatch due to the launchers is completely overcome.
BIANCO, BRUNO, PARODI, MAURO
openaire   +3 more sources

Design and Fabrication of Modified SMA-Connector Sensor for Detecting Water Adulteration in Honey and Natural Latex

open access: yesApplied System Innovation, 2021
A detection system for water adulteration in honey is proposed. It consists of a modified SMA-connector sensor and a vector network analyzer. A modified SMA-connector sensor is applied to measure complex relative permittivity, electrical conductivity ...
Adisorn Nuan-On   +3 more
doaj   +1 more source

Reflectionless Sharp Bends and Corners in Waveguides Using Epsilon-Near-Zero Effects [PDF]

open access: yes, 2008
Following our recent theoretical and experimental results that show how zero-permittivity metamaterials may provide anomalous tunneling and energy squeezing through ultranarrow waveguide channels, here we report an experimental investigation of the ...
Alu, Andrea   +3 more
core   +4 more sources

STUDY OF NEGATIVE REFRACTIVE INDEX IN Rb FOUR-LEVEL N-TYPE ATOMIC GAS MEDIUM

open access: yesTạp chí Khoa học Đại học Đà Lạt, 2022
In this work, we study the generation of a negative refractive index based on electromagnetically induced transparency (EIT) in a Rb four-level N-type atomic gas medium.
Huy Bang Nguyen   +4 more
doaj   +1 more source

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