Results 161 to 170 of about 315,046 (231)
(Invited) Complex Relative Permittivity of UV-C Transparent AlN
ECS Transactions, 2021 Rafael Dalmau +3 more
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Electronics and Communications in Japan (Part III: Fundamental Electronic Science), 1990 AbstractFrom the measurement of a reflected voltage waveform from a biological body for a step‐like voltage waveform, the frequency characteristics of the complex relative permittivity are studied and the following results are obtained: (1) if the blood flow and sweating are normal, the value of tanδ in the mouth is 4 ‐ 6 at about 10 MHz because ...
Khoshi Ishihara, Tsunehito Higashi
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Complex relative permittivity analysis for monitoring watermelon [PDF]
2017 International Symposium on Antennas and Propagation (ISAP), 2017 This paper proposes a study of complex relative permittivity (∊ r =∊ r ′-j∊ r ″) for monitoring watermelon. The complex relative permittivity of peel and pulp are analyzed as variation of maturity stages and used for determining mature fruit of watermelon from the measured reflection coefficient.
P. Yoiyod
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2009 European Microwave Conference (EuMC), 2009 In this paper, uneven temperature distribution of a heated material is computed by a coupled method considering the change of the complex relative permittivity by the temperature rise.
Shinya Watanabe +2 more
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Relaxation model of complex relative permittivity of sandstones for the frequency range from 10 kHz to 1 GHz [PDF]
2017 Progress In Electromagnetics Research Symposium - Spring (PIERS), 2017 The dielectric relaxation model that takes into account the contribution of three relaxation processes into dielectric constant is used. The first relaxation process is caused by orientation polarization of the water molecules. The second and third processes are caused by polarization of water-air and water-mineral interfaces.
A. V. Repin +3 more
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Complex Relative Permittivity Measurement of Selected 3D-Printed Materials up to 10 GHz
2019 Conference on Microwave Techniques (COMITE), 2019In this contribution, the complex relative permittivity of selected materials for additive manufacturing 3D print technology is measured. The included materials are acrylonitrile butadiene styrene (ABS), polyethylene terephthalate (PET), polylactic acid (PLA), XT co-polyester and special material with admixture of cork.
Jaroslav Lacik, Jaroslav Zechmeister
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Uniaxial Complex Relative Permittivity Tensor Measurement of Rocks From 40 Hz to 4.5 GHz
IEEE Transactions on Geoscience and Remote Sensing, 2017We develop a set of combined measurement techniques and calculation workflows to determine the complex uniaxial dielectric tensor of a rock sample from 40 Hz to 4.5 GHz. This unique method provides the ability to develop interpretation models bridging electrical logging tools with their corresponding operational frequencies and measurement direction ...
Fouad Shehab +5 more
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Physiological Measurement, 2019
Electrical conductivity and relative permittivity are properties that indicate muscle health and they have different values parallel and perpendicular to the direction of the myofiber, a concept known as anisotropy. When the intrinsic electrical properties of muscle have ratios of anisotropy that are different then there is no analytical solution that ...
Janice A. Nagy +4 more
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Electrical conductivity and relative permittivity are properties that indicate muscle health and they have different values parallel and perpendicular to the direction of the myofiber, a concept known as anisotropy. When the intrinsic electrical properties of muscle have ratios of anisotropy that are different then there is no analytical solution that ...
Janice A. Nagy +4 more
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Ferroelectrics, 1992 Abstract The dielectric behaviour and structure of the BaxSr1–x(Zn1/3Nb2/3)O3 (BSZN) solid solution have been investigated with the intention of understanding an anomaly which exists in the temperature coefficient of the dielectric constant (τϵ) at x ≈ 0.5. A correlation between τe and the occurrence of O-octahedra tilts has been established.
Ian M. Reaney, Nava Setter, Enrico Colla
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Electromagnetics, 2019
In this paper, a super high-resolution algorithm is proposed to estimate the complex relative permittivity of a planar material placed in free-space based on the transmission coefficients measureme...
Manh Cuong Ho +2 more
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In this paper, a super high-resolution algorithm is proposed to estimate the complex relative permittivity of a planar material placed in free-space based on the transmission coefficients measureme...
Manh Cuong Ho +2 more
openaire +3 more sources