Results 91 to 100 of about 3,397,378 (372)

Effect of Dielectric Layer on Miniaturized Patch Antenna Sensor

open access: yesSensors
Miniature patch antenna sensors have great potential in the field of structural health monitoring for crack propagation detection due to their small size and high sensitivity.
Caifeng Chen   +3 more
doaj   +1 more source

TRANSMISSION LINE THEORY BASED TWO LAYER MODEL FOR DETERMINING SOIL MOISTURE [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013
Present paper deals with the task of estimating soil moisture under vegetation cover by using transmission line theory based two layer model. The two layer model measures the impedance of both the layers namely, soil and vegetation.
P. Mishra, D. Singh
doaj   +1 more source

Estimation of dielectric constant for various standard materials using microstrip ring resonator [PDF]

open access: yes, 2017
Microstrip ring resonator (MRR) is known for dielectric constant determination and many studies used Teflon as a standard sample. However, there are many other materials available which able to perform better or equivalence as the Teflon in calibrating ...
Abbas, Zulkifly   +3 more
core   +1 more source

Mechanically Adaptable High‐Performance p(SBMA‐MMA) Copolymer Hydrogel with Iron (II/III) Perchlorate for Wearable Thermocell Applications

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
A high‐performance n‐type element for quasi‐solid‐state thermocells has been introduced, outperforming conventional p‐type elements and showcasing the potential to harness body heat as an energy source or power embedded sensors. This advance significantly contributes to waste thermal energy harvesting and wearable technology, paving the way for self ...
Gilyong Shin   +10 more
wiley   +1 more source

Effect of microwave vacuum puffing conditions on the dielectric properties of berries

open access: yesScientific Reports
The objective of this study was to study the effect of microwave vacuum puffing (MVP) conditions on dielectric properties of berries. A central composite response surface experiment, with four factors and five levels, was carried out to assess the effect
Haijun Liu   +6 more
doaj   +1 more source

A numerical study for dielectric constant profile of aqueous solvent in ionic solution radiated by high-intensity electric pulses

open access: yesAIP Advances, 2018
In this paper, a mathematical physics model is set up to study dielectric constant profile of aqueous solvent in ionic solution, to revise Brownian dynamics simulation in ionic solution by considering time-variant dielectric constant profile with change ...
Wenfei Bo   +9 more
doaj   +1 more source

Comment on "On the negative value of dielectric permittivity of the water surface layer" [Appl. Phys. Lett. 83, 4506 (2003)]

open access: yes, 2004
The recent interpretation of the positive resonance frequency shift in dielectric resonators loaded by water is reviewed. Instead of the invoked negative dielectric constant of water surface layer, it is demonstrated that the experimental results are ...
G. Annino, M. Cassettari, Wooten F.
core   +1 more source

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

open access: yesAdvanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund   +6 more
wiley   +1 more source

Studing Some Dielectric Properties and Effective Parameters of Composite Materials Containing of Novolak Resin [PDF]

open access: yesEngineering and Technology Journal, 2007
Dielectric constant (εr ) and dielectric strength (Ebr) of composite materials thatconsist of Novolak reinforced with glass fiber, Novolak reinforced with asbestosfiber and Novolak reinforced with (60%) ratio of glass fiber and asbestos havebeen Studied.
doaj   +1 more source

Dielectric Constant of Diamond [PDF]

open access: yesNature, 1948
THE dielectric constant of diamond has been the subject of investigation by a number of workers, among whom particular mention may be made of Robertson, Fox and Martin1, Whitehead and Hackett2and Groves and Martin3. The exact value of this constant and whether there is any difference between the values exhibited by the two types, namely, ultra-violet ...
S. Bhagavantam, D. A. A. S. Narayana Rao
openaire   +2 more sources

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