Results 81 to 90 of about 284,309 (382)

Additively Manufactured 3D Auxetic Metamaterials for Structurally Guided Capacitive and Resistive Tactile Sensing

Advanced Functional Materials, EarlyView.
A 3D‐architected auxetic metamaterial is used to construct capacitive and resistive tactile sensors via digital light processing‐based additive manufacturing. The inward deformation of the proposed structure under compression amplifies local strain, enhancing sensing performance.
Mingyu Kang, Hong‐Gap Choi, Keun Park, Soonjae Pyo   +3 more
wiley   +1 more source

Conductivity and permittivity imaging at 3.0 t [PDF]

Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering, 2012
AbstractTissue conductivity and permittivity are critical to understanding radio frequency (RF) power deposition during magnetic resonance imaging (MRI). These electrical properties are also important in treatment planning of RF thermotherapy methods (e.g., RF hyperthermia).
Selaka Bandara Bulumulla, S.K. Lee, D.T.B. Yeo   +2 more
openaire   +3 more sources

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

Glucose Concentration Measurement in Human Blood Plasma Solutions with Microwave Sensors

Sensors, 2019
Three microwave sensors are used to track the glucose level of different human blood plasma solutions. In this paper, the sensors are evaluated as glucose trackers in a context close to real human blood. Different plasma solutions sets were prepared from
Carlos G. Juan, Enrique Bronchalo, Benjamin Potelon, Cédric Quendo, José M. Sabater-Navarro   +4 more
doaj   +1 more source

Effect of sulfur doping on the dielectric properties of Sb2Se3 system [PDF]

Journal of Advanced Dielectrics, 2019
In this paper, we report the effect of sulfur doping on the electrical and dielectric properties of semiconducting Sb2Se2S over wide ranges of temperatures (298–473K) and frequencies (42–106Hz).
Ragab Mahani, E. A. El-Sayad
doaj   +1 more source

Imaging of Microwave Permittivity, Tunability, and Damage Recovery in (Ba,Sr)TiO3 Thin Films

, 1999
We describe the use of a near-field scanning microwave microscope to quantitatively image the dielectric permittivity and tunability of thin-film dielectric samples on a length scale of 1 micron. We demonstrate this technique with permittivity images and
Anlage, Steven M., Canedy, C., Melngailis, J., Ramesh, R., Stanishevsky, A., Steinhauer, D. E., Vlahacos, C. P., Wellstood, F. C.   +7 more
core   +1 more source

Broadband Measurements of Soil Complex Permittivity

Sensors, 2023
Agriculture is a major consumer of freshwater and is often associated with low water productivity. To prevent drought, farmers tend to over-irrigate, putting a strain on the ever-depleting groundwater resources. To improve modern agricultural techniques and conserve water, quick and accurate estimates of soil water content (SWC) should be made, and ...
Justin Stellini, Lourdes Farrugia, Iman Farhat, Julian Bonello, Raffaele Persico, Anthony Sacco, Kyle Spiteri, Charles V. Sammut   +7 more
openaire   +4 more sources

Domain Nucleation and Growth in an Epitaxially Grown Wurtzite Ferroelectric

Advanced Functional Materials, EarlyView.
Ferroelectric domain nucleation and growth in epitaxial wurtzite (Al, B, Sc)N films are visualized through in situ transmission electron microscopy. Domains initiate near the bottom electrode and propagate laterally with zigzag walls, while unswitched regions remain near the electrode interfaces.
Sebastian Calderon, Chloe Skidmore, Jon‐Paul Maria, Elizabeth C. Dickey   +3 more
wiley   +1 more source

Design, synthesis and processing of PVDF-based dielectric polymers

IET Nanodielectrics, 2018
Due to the appealing piezoelectric, pyroelectric, and ferroelectric (FE) properties, poly(vinylidene fluoride) (PVDF)-based dielectric polymers have been attracting great attention from both the academic and industrial communities.
Shan Wang, Qi Li
doaj   +1 more source

Generalized plasma-like permittivity and thermal Casimir force between real metals

, 2007
The physical reasons why the Drude dielectric function is not compatible with the Lifshitz formula, as opposed to the generalized plasma-like permittivity, are presented. Essentially, the problem is connected with the finite size of metal plates.
Ashcroft N W, B Geyer, Bezerra V B, Bimonte G, Casimir H B G, Chen F, Elizalde E, Erdélyi A, G L Klimchitskaya, Geyer B, Gradshtein I A, Høye J S, Jackson J D, Klimchitskaya G L, Klimchitskaya G L, Lamoreaux S K, Landau L D, Lifshitz E M, Milonni P W, Milton K A, Milton K A, Mostepanenko V M, Mostepanenko V M, Parsegian V A, V M Mostepanenko   +24 more
core   +1 more source