Results 251 to 260 of about 136,911 (294)
Some of the next articles are maybe not open access.
Dielectric properties of the skin
Physics in Medicine and Biology, 1997Department of Oncology, Kuopio University Hospital, FIN-70210 Kuopio, Finland Received 1 April ...
Esko Alanen +2 more
openaire +2 more sources
Dielectric Properties Of Nanoferrites
AIP Conference Proceedings, 2007Dielectric properties: permittivity, loss factor, tan delta and ionic conductivity of nanostructured ferrites have been measured. Samples used were nickel, zinc and yttrium doped ferrites mixed in various ratios. The synthesis has been performed using precipitation method and obtained powders were pressed in pellets under varying pressure.
Jankov, S +3 more
openaire +3 more sources
Dielectric Properties of Materials
1991The interaction of electromagnetic radiation with a solid may be described either microscopically or macroscopically according to requirements. In a microscopic picture one would speak, for instance, of the absorption of a photon via the creation of a phonon or an electron-hole pair.
Hans Lüth, Harald Ibach
openaire +2 more sources
Dielectric properties of ceramics
Journal of Physics D: Applied Physics, 1996The ceramic form of is of commercial importance as a ceramic capacitor dielectric and it is of scientific interest since it provides a straightforward example of the effect of solid solution composition of ceramics on dielectric properties. This paper presents the results of a sufficient number of measurements of the most important dielectric ...
A. D. Hilton, B. W. Ricketts
openaire +3 more sources
Measurement of Dielectric Properties
2014The ageing of the insulation of HV apparatus is not only caused by the high electric field strength but also by thermal and mechanical stresses that evolve during normal operation condition. This may lead to chemical processes associated with a gradual deterioration of the integral insulation properties.
Eberhard Lemke, Wolfgang Hauschild
openaire +2 more sources
Measurement of the Dielectric Properties of Paper
NIP & Digital Fabrication Conference, 1998Unlike de resistivities of non-impact printing papers that are routinely measured, their dielectric properties are seldom considered. The do resistivity alone does not predict the behavior of paper very well when paper passes through a transfer nip. If the electric field changes with time, all anisotropic frequency-dependent electrical properties of ...
Simula, S. +5 more
openaire +2 more sources
On the anomalous properties of dielectrics
Journal of the Franklin Institute, 1936Abstract The causes of energy losses in dielectrics subjected to alternating stress are not completely understood. One of the most satisfactory methods of treating these problems, due to von Schweidler, attributes the dielectric loss entirely to dielectric absorption.Some agreement between the methods of von Schweidler and experimental data has been ...
openaire +2 more sources
Dielectric Properties of Foods
2005Electromagnetic heating, such as microwave and radiofrequency (RF) heating, finds applications in many food processes in industry and at home, including reheating, precooking, cooking, tempering, baking, drying, pasteurization, and sterilization. Electromagnetic heating processes are governed by the material properties called dielectric properties.
G.S.V. Raghavan +2 more
openaire +2 more sources
Dielectric Properties of Solids
2009In this chapter, we studied dielectric properties of solids in the presence of an external electromagnetic disturbance. We first reviewed elementary electricity and magnetism, and introduced concept of local field inside a solid. Then dispersion relations of self-sustaining collective modes and reflectivity of a solid are studied for various situations.
John J. Quinn, Kyung-Soo Yi
openaire +2 more sources
Dielectric properties of Pb5Al3F19
Journal of Fluorine Chemistry, 1991Abstract The tetragonal A 5 M 3 F 19 compounds (A = Sr,Ba,Pb; M = Al,Ti,V, Cr,Fe,Ga) and with the Pb 5 Cr 3 F 19 -type structure undergo a first order transition without change of crystalline system at 285 ≲ T c ≲ 1090 K [1,2]. The transition temperature depends strongly on the nature of the A 2+ and M 3+ cations.
Paul Hagenmuller +4 more
openaire +2 more sources