Natural Sapphire is Now Being Re-constructed PDF Download
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Author: Kendrick N. Hemmenway
Publisher:
ISBN:
Category : Precious stones, Artificial
Languages : en
Pages : 14
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Author: Kendrick N. Hemmenway
Publisher:
ISBN:
Category : Precious stones, Artificial
Languages : en
Pages : 14
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Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 908
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Author: Marden H. Seavey
Publisher:
ISBN:
Category : Acoustic paramagnetic resonance
Languages : en
Pages : 14
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Author: F. V. Schultz
Publisher:
ISBN:
Category : Boundary value problems
Languages : en
Pages : 14
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In this work, rigorous electromagnetic theory is used to determine the nose-on radar cross section of a perfectly conducting cone of finite height. The end cap of the cone is assumed to be a segment of a s spherical surface with center at the apex of the cone. Numerical results have been obtained for a cone having a total apex angle of 30 degrees and for values of [kappa alpha] ranging from 0.0259 to 5.18, where [kappa]=2 [pi]/[lambda] and [alpha] is the radius of the base of the cone. Siegel's Rayleigh method and by using Keller's modified geometrical optics as well as with experimental results obtained by Keys. The comparisons are instructive below [kappa alpha] = 3.2, the apparent upper limit of validity of the present results -- p.[3].
Author: Takeshi Namioka
Publisher:
ISBN:
Category : Absorption spectra
Languages : en
Pages : 20
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Author: Robert J. Papa
Publisher:
ISBN:
Category : Electron distribution
Languages : en
Pages : 10
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Author: Yūji Inoue
Publisher:
ISBN:
Category : Atmospheric models
Languages : en
Pages : 46
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The propagation of electromagnetic waves in a horizontally stratified layer of gyrotropic medium is discussed. Derivation of a comprehensive representation for magneto-ionic coupling coefficients allows interpretation of the physical significance of the coupling. Introduction of an invariant quantity for an inhomogeneous medium becomes an important guide for numerical solutions of the wave equation. Numerical results of magneto-ionic coupling coefficients are presented. Based on region properties, characteristic wave types are defined: for the isotropic region, linearly polarized waves are used; for the anisotropic region, elliptically polarized waves generally are applied. (Author).
Author: Peter J. Gielisse
Publisher:
ISBN:
Category : Cobalt
Languages : en
Pages : 18
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Author: Sally J. Nauman
Publisher:
ISBN:
Category : Dielectric resonators
Languages : en
Pages : 162
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The resonant frequencies for the fundamental modes in circular cylindrical and rectangular parallelopiped high dielectric resonators have been calculated by computer for a range of values of physical dimensions and relative dielectric constant. The frequency range extends from zero to 50,000 Mc/sec, the relative dielectric constant from 50 to 1800, and physical dimensions from zero to 500 mils. Results are presented in tabular and graphical form with frequency plotted versus resonator length for parametric values of relative dielectric constant and cross sectional dimensions. A brief review of earlier work with high dielectric resonators is included. Expressions for the resonant frequency and fundamental mode field configurations are given. (Author).
Author: Johannes N. Plendl
Publisher:
ISBN:
Category : Dielectrics
Languages : en
Pages : 14
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