Results 51 to 60 of about 194,102 (294)
Complementary Metamaterial Sensor for Nondestructive Evaluation of Dielectric Substrates
Sensors, 2019 In this paper, complementary metamaterial sensor is designed for nondestructive evaluation of dielectric substrates. The design concept is based on electromagnetic stored energy in the complementary circular spiral resonator (CCSR), which is concentrated
Tanveer ul Haq +3 more
doaj +1 more source
Constant-Phase-Element Behavior Caused by Coupled Resistivity and Permittivity Distributions in Films [PDF]
, 2011 A recent proposed model showed that the impedance of a film with a uniform permittivity and a resistivity that varies along its thickness according to a power-law is in the form of a constant phase element (CPE). This model is further considered in order
Musiani, Marco +4 more
core +2 more sources
Rational Device Design and Doping‐Controlled Performance in Fast‐Response π‐Ion Gel Transistors
Advanced Functional Materials, EarlyView.π‐Ion gel transistors (PIGTs) achieve extraordinary transconductance and stability through device configuration optimization, high‐mobility conjugated polymer selection, and hole scavenger doping. The optimized PIGTs maintain performance on flexible substrates, enabling printed, fast‐response, and wearable electronics.
Masato Kato +10 more
wiley +1 more source
Low-Cost Oil Quality Sensor Based on Changes in Complex Permittivity
Sensors, 2011 Real time oil quality monitoring techniques help to protect important industry assets, minimize downtime and reduce maintenance costs. The measurement of a lubricant’s complex permittivity is an effective indicator of the oil degradation process and it ...
Mark Hadfield, Angel Torres Pérez
doaj +1 more source
, 2000 We describe the use of a near-field scanning microwave microscope to image the permittivity and tunability of bulk and thin film dielectric samples on a length scale of about 1 micron. The microscope is sensitive to the linear permittivity, as well as to
A. Stanishevsky +8 more
core +1 more source
Advanced Functional Materials, EarlyView.Ferroelectricity in thin HfO2‐based films offers great possibilities for next‐generation neuromorphic memory devices. There, the response to subcoercive voltage signals is driven by the movement of mobile interfaces and their interaction with crystal defects – a yet rather unexplored aspect, which we shed light on and gain new insights into the complex
Maximilian T. Becker +11 more
wiley +1 more source
Sensors, 2019 In this paper, a cylindrical cavity sensor based on microwave resonant theory is proposed to distinguish between various driveability index gasolines under temperature variations. The working principle of the proposed sensor is based on the fact that the
Chong Hyun Lee +2 more
doaj +1 more source
Non-resonant Permittivity Measurement Methods [PDF]
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, 2017 La medición de las propiedades dieléctricas de los materiales se ha aplicado en pruebas no destructivas, medición de humedad, análisis de suelos e incluso detección de cáncer. Los métodos se han desarrollado durante más de 70 años en base a la interacción de las ondas electromagnéticas con el material bajo prueba.
S. L. S. Severo +3 more
openaire +5 more sources
Advanced Functional Materials, EarlyView.A chiral photodetector capable of selectively distinguishing left‐ and right‐handed circularly polarized light is experimentally demonstrated. The device, which features a nanopatterned electrode inverse‐designed by a genetic algorithm within a metal–dielectric–metal nanocavity that incorporates a vacuum‐deposited small‐molecule multilayer, exhibits ...
Kyung Ryoul Park +3 more
wiley +1 more source
Sensors, 2023 In this paper, an oblique aperture ridge waveguide operating at 2450 MHz is proposed, and, using the ridge waveguide, a permittivity measurement system is constructed which can measure the permittivity of materials during microwave heating.
Mingyi Gou +4 more
doaj +1 more source