Results 331 to 340 of about 284,309 (382)
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Physical Chemistry, Chemical Physics - PCCP, 2020
Recently, flexible metacomposites with negative permittivity have triggered extensive interest owing largely to their promising applications in areas such as sensors, cloaking, and wearable and flexible electronic devices.
Kai Sun +9 more
semanticscholar +1 more source
Recently, flexible metacomposites with negative permittivity have triggered extensive interest owing largely to their promising applications in areas such as sensors, cloaking, and wearable and flexible electronic devices.
Kai Sun +9 more
semanticscholar +1 more source
Dual-Mode Resonator for Simultaneous Permittivity and Thickness Measurement of Dielectrics
IEEE Sensors Journal, 2020This paper presents a microwave sensor for simultaneous measurement of permittivity and thickness in dielectric materials. The sensor is made of a dual-mode magnetic- $LC$ resonator coupled to a microstrip transmission line. Due to a dual-mode resonance
A. Ebrahimi, James Scott, K. Ghorbani
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Tunable Negative Permittivity in Flexible Graphene/PDMS Metacomposites
Journal of Physical Chemistry C, 2019The flexible metacomposites with tunable negative permittivity have great potential in wearable cloaks, stretchable sensors, and thin-film capacitors, etc.
Kai Sun +9 more
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The theories of complex permittivity [PDF]
It is shown that the spectral density used by Scaife (1971) in his theory of complex permittivity is closely related to the autocorrelation function used by other authors and that both Scaife's equation and the equation in terms of autocorrelation functions follow immediately from the superposition principle.
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On retrieval of permittivity profile
Proceedings of 2001 3rd International Conference on Transparent Optical Networks (IEEE Cat. No.01EX488), 2002A new theoretical approach is proposed for solving the inverse problem of dielectric permittivity retrieval by a reflected field. It is based on the approximate solution of an integral equation, obtained by combining the integral equation for the electromagnetic field inside the object with an integral expression, which determines the diffracted field ...
Irena Yu. Vorgul +2 more
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The permittivity of heterogeneous mixtures
Journal of Physics D: Applied Physics, 1973By using the double-ellipsoid model of Bilboul, two theoretical expressions have been derived for correlation of the permittivity of a heterogeneous mixture with the permittivities of its components for specific particle shapes. One of the equations is identical to that of Morabin et al (1967) derived under different considerations.
Krishan Lal, R Parshad
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Dielectric permittivity of suspensions
Journal of Experimental and Theoretical Physics, 2007A strict macroscopic analysis of the limiting long-wavelength permittivity of a model suspension is presented in which the suspension is considered as a finely dispersed system consisting of isotropic dielectric balls with piecewise-continuous radial permittivity profile. The analysis is performed within the framework of the notion of compact groups of
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Dielectric Permittivity of BiTeI
Inorganic Materials, 2004The dielectric permittivity and volume electron energy loss spectra of the ferroelectric semiconductor BiTeI are calculated for the E ⊥ c polarization in the range 0–12 eV. The spectra are decomposed into elementary components (13), and their principal parameters are evaluated.
V. Val. Sobolev +2 more
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Permittivity of composite composites
1999 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.99CH36319), 2003Composite composites are entities that are important in physics and engineering and are a class of compounds actively investigated for their dielectric properties. Such systems consist of composite inclusions multicomponent materials embedded in a matrix of a distinct material.
Abderrahmane Beroual +2 more
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Permittivity in Molecular Nanofilms
MRS Proceedings, 2007AbstractA microscopic theory of dielectrical properties of thin molecular films, i.e. quasi 2D systems bounded by two surfaces parallel to XY planes was formulated. Harmonic exciton states were calculated using the method of two-time, retarded, temperature dependent Green's functions.
D. I. Ilić +4 more
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