Results 61 to 70 of about 6,016,080 (298)

A Method for the Electromagnetic Characterization of Construction Materials Based on Fabry–Pérot Resonance

open access: yesIEEE Access, 2017
The determination of the complex permittivity of low-loss construction materials at frequency bands above 6 GHz that are being proposed to allocate forthcoming mobile radio services is of critical importance for the design and deployment of future ...
Vittorio Degli-Esposti   +5 more
doaj   +1 more source

Analysis of glucose‐dependent dielectric properties of aqueous‐based solution: A proof of concept

open access: yesIET Science, Measurement & Technology, 2021
In spite of widespread research and exploration, the status of non‐invasive blood glucometer for diabetic people is far from satisfactory. This unlocks the prospect for further significant research in the field of non‐invasive blood glucose sensing.
Satish, Kushal Sen, Sneh Anand
doaj   +1 more source

Simple non-invasive measurement of complex permittivity

open access: yesElectronics Letters, 1993
A simple non-invasive sensor measures complex permittivity at microwave (UHF) frequencies from changes in resonance frequency and reflection coefficient. Response to reference liquids is in good agreement with finite difference time-domain calculation.
Johnson, RB   +4 more
openaire   +2 more sources

Interaction‐Driven Assembly Pathways in Heterogeneous Active Microrobotic Systems

open access: yesAdvanced Functional Materials, EarlyView.
Peanut‐ and cube‐shaped light‐powered microrobots exhibit distinct magnetic and photocatalytic responses that determine their heterogeneous self‐assembly. In the dark, magnetic dipole interactions drive colloidal copolymerization with cubes acting as nucleation centers, whereas under light irradiation, phoretic interactions compete with magnetic ...
Domenico Calabrò   +5 more
wiley   +1 more source

Complex Permittivity to Detect Lead in Soil with Various Salt Forms and Combinations

open access: yesMATEC Web of Conferences, 2017
The response of soil-water systems to an external electric field can be described as polarization and conduction. Polarization represents the electric charges stored in a material, whereas conduction is the ability of a material to conduct free charges ...
Al Martini Samer, Shang Julie Q.
doaj   +1 more source

Complex Permittivity Measurement of Biological Tissue [PDF]

open access: yes, 2010
This thesis deals with the measurement of complex permittivity of biological tissue as the default precondition for the design of thermo-therapeutic microwave applicators for hyperthermia oncology treatment, when for the valid simulations of ...
Vorlíček, Jaroslav
core  

Fiber‐reinforced Liquid Metal Composites With Automated Circuit Fabrication for Structurally‐Integrated Power Transfer

open access: yesAdvanced Functional Materials, EarlyView.
Fiber‐reinforced liquid metal composites (FibRe LMCs) are introduced that combine GPa‐scale structural performance with digitally programmable electrical conductivity. Through automated CNC activation, conductive pathways and wireless power transfer circuits are fabricated directly within load‐bearing composites, enabling structurally integrated ...
John Joyce   +5 more
wiley   +1 more source

Measured Dielectric Permittivity of Contaminated Sandy Soil at Microwave Frequency

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications
Measurement of dielectric permittivity of soil has been studied by many researchers. However, few studies have been conducted on contaminated soil. The motivation of the present study is to investigate the behavior of sandy soil contaminated by lubricant
Ahmad H. Abdelgwad, Tarek M. Said
doaj   +1 more source

Rat Head Phantom for Testing of Electroencephalogram Source Localization Techniques

open access: yesIEEE Access, 2020
In this paper we report a new rat head phantom developed for testing electroencephalogram source localization techniques. The phantom is composed of an agar based mixture mimicking the rat brain, six dipoles and fourteen electrodes for modeling and ...
Jaroslav Lacik   +8 more
doaj   +1 more source

Dielectric spectroscopy of PETG/TiO2 composite intended for 3D printing

open access: yesVirtual and Physical Prototyping, 2023
3D-printed electronics belong to new approaches to how to build a complex object with multiple desired functions. For that purpose, materials with specific electric properties are needed: conductors, insulators, magnetics, or dielectrics with high ...
Petr Veselý   +5 more
doaj   +1 more source

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