Results 271 to 280 of about 314,270 (307)
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On boundary conditions for polar materials
Zeitschrift für angewandte Mathematik und Physik ZAMP, 1977We discuss some restrictions on boundary conditions in continuum mechanics arising from the requirement that the basic balance laws, invariance conditions and entropy inequality must hold for the material outside of the bounding surface. We illustrate our assertions for polar materials, but the ideas we use are applicable to all continuum theories.
Atkin, R. J., Cowin, S. C., Fox, N.
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Yttrium Vanadate: Polarizer Materials
1972Abstract : ium Vanadate: Polarizer Materials.Interim technical rept. 1 Oct 71- 30 Apr 72,Keig,G. A. ;McKnight,H. G. ;DAAB07-72-C-0022ECOM0022-1(*yttrium compounds, *crystal growth), (*lasers, polarizing filters), vanadates, single crystals*yttrium vanadates, *polarizersDuring the first quarter the crucible and furnace for carrying out crystal growth ...
H. G. McKnight, G. A. Keig
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Polarization current in fluoropolymer materials
Proceedings of 1995 Conference on Electrical Insulation and Dielectric Phenomena, 2002Studies on Thermally Stimulated Polarization Currents (TSPC) in fluoropolymer films are presented in this paper. The influences of poling field, heating rate and electrode material on TSPC are investigated. Results show that higher poling fields yield higher currents.
Z.L. Wu, G.R. Govinda Raju
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Polarization Characteristics of Bianisotropic Materials
AMPC Asia-Pacific Microwave Conference,, 2005A genaal analytical - numerical method is described to obtain information on the elecuomagnetic behavior (including polarization) of complex objects containing bianisotropic materials. Some specific results are mentioned.
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Polarization imaging for material classification
Optical Engineering, 2008A simple and stable method is proposed for distinguishing dielectric and metal material surfaces from the polarization images captured by a vision system consisting of a linear polarizer and a digital camera. The polarization state is determined by the transmitted light intensity through the polarizer as a function of polarizing orientation. The degree
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Conduction polarization in solid materials
Journal of Materials Science Letters, 1984The thermally stimulated polarization/depolarization current technique (abbreviated as TSPC/ TSDC) [1] is a useful tool for studying charge carrier motion in vitreous and crystalline solids. Recent works on alkali-containing oxide glasses [2-4] revealed the existence of three different polarizations named P1, P2, and P3 in the order of increasing peak ...
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Dielectric response of polar materials
IEEE Transactions on Electrical Insulation, 1990The proposed approach is based on the unique property that the ratio of the real to the imaginary parts of the susceptibility or of the polarization decrement are independent of frequency in the respective frequency ranges. The resulting energy criterion is discussed, and a screened polarization model and mechanical relaxation model are developed and ...
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Piezoelectricity in Polar Supramolecular Materials
Angewandte Chemie International Edition, 2000Pralle, Martin U. +5 more
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On Polarization Dynamics in Ferroelectric Materials
2016We consider a mathematical model describing polarization dynamics in ferroelectric material. The model consists of a Maxwell system for electromagnetic field coupled with a second-order time-dependent equation for the evolution of polarization. We study the long-time behaviour of weak solutions and prove that all points of the ω-limit set of any ...
M. Driss Aouragh, M. Hadda, M. Tilioua
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