Unfortunately, the results obtained by such models are very sensitive to the value used for the dielectric constant. Furthermore, the factors that determine the optimal value of these constants are far from being obvious. This review considers the meaning of the protein dielectric constants and the...
This document is part of Volume 17 'Static Dielectric Constants of Pure Liquids and Binary Liquid Mixtures (Supplement to IV/6)' of Landolt-Brnstein Group IV ' Physical Chemistry '. Chemical substances in this chapter: Element System: C-H-O-S Hill Formula: C 3 H 8 O 2 S Molecular Wei...
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where ε∞ is a constant equal to the value of the permittivity at infinite frequency. Physically, ε∞ corresponds to the permittivity value that is attained instantaneously when an external electric field is applied. In the general field of dielectric material analysis, this quantity is also call...
The latter is expressed by a number called the dielectric constant. A common, yet notable example of a dielectric is the electrically insulating material between the metallic plates of a capacitor. The polarization of the dielectric by the applied electric field increases the capacitor's surface ...
from Springer Link was performed in a similar manner to that of Elsevier, but only open-access papers were allowed to be scraped. In addition, these requests involved query search keywords, “refractive index” and “dielectric constant”. The range of publication years for papers was set to ...
It was also found that the dielectric constant B' ofTrFE-VDF copolymer took on a maximum at 55 mol% VDF content. The numerical value of B' was 15 (at l kHz and at 22°C) and about 1.7 times larger than those of poly(trifluoroethylene) and poly(vinylidene fluoride) homopolymers. KEY...
aIn a more specific explanation of the "sub-atomic" action the occurs in the water fuel cell, it is known that natural water is a liquid which has a dielectric constant of 78.54 at 20 degrees C. and 1 atmosphere pressure. [Handbook of Chemistry & Physics, 68th ed., CRC Press(Boca ...
In subject area: Engineering Dielectric loss tangent parameter (DLTP) quantifies a dielectric material's inherent dissipation of electromagnetic energy into heat, expressed by the ratio of dielectric loss factor (imaginary permittivity) to dielectric constant (relative real permittivity), where dielectric...
Concentration-dependent dielectric constant from measurements. The equations of the fitted curves are ϵ(c) = 78.5 − 15.45c + 3.76c3/2 for NaCl (147) and ϵ(c) = 78.5 − 34c + 10c3/2 for CaCl2 (148,149), where c is the electrolyte concentration (cation concentration in the ...