Download or read book Magneto ionic Coupling in an Inhomogeneous Medium written by Yūji Inoue and published by . This book was released on 1965 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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).

Download or read book Magneto ionic Coupling in an Inhomogeneous Medium written by Yuji Inoue and published by . This book was released on 1965 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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).

Download or read book Multi mode Wave Coupling in Inhomogeneous Anisotropic Media written by Olof E. H. Rydbeck and published by . This book was released on 1967 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report deals with coupled waves, or coupled modes in arbitrary inhomogeneous n-wave systems. The partial waves, which make up the total wave field (of some physical kind) are expressed either in terms of so called inhomogeneous wave numbers, or of regular homogeneous ones (with corresponding phase integrals). The partial wave amplitudes are related to each other by first order coupled amplitude equations, with coupling coefficients depending upon the physical nature of the modes appearing in the system. These wave couplings are formally simple only when the partial waves have symmetrical properties of some kind (which is the case in many practical applications). A great number of coupled mode systems are analysed, compared, and discussed in considerable detail, with applications for example to magnetoionic, and to active (amplifying), inhomogeneous media. This report represents a major effort to relate all coupled wave phenomena to each other, irrespective of their particular physical background; in short to present a unified theory of multi-mode couplings in inhomogeneous media. (Author).

Download or read book Coupled Wave Equations for Multi mode Inhomogeneous Media Ii Section A on the Transformation of the Wave Equations of an Inhomogeneous Multi wave System to Coupled Mode Form Section B on Inhomogeneous Wave Numbers for Longitudinal Propagation in a Magneto ionic Medium written by Ake G. Hjalmarson and published by . This book was released on 1967 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: By means of matrix formalism any linearized form of wave equations in total fields, which govern the propagation in an inhomogeneous multi-mode system can be transformed to coupled mode form. Various types of mode definition and coupled mode equations are obtained. The nature and properties of a mode definition depend upon the choice of original wave equations in total fields. Furthermore the modes can be defined by means of 'homogeneous' and 'inhomogeneous' models. The physical interpretation of the mode representation is a very important part of a coupling theory. To illuminate this situation the case of longitudinal propagation in an inhomogeneous magneto-ionic is treated by means of homogeneous and inhomogeneous mode representations. (Author).

Download or read book Coupled Waves in Magneto ionic Media written by O. E. H. Rydbeck and published by . This book was released on 1966 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Substituted Perinaphthenyl Anion Radicals written by Tapan K. Mukherjee and published by . This book was released on 1965 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book On Measuring the Radar Cross Sections of Ducks and Chickens written by P. Blacksmith (Jr.) and published by . This book was released on 1965 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cavity Resonances in Accelerated Systems written by E. J. Post and published by . This book was released on 1965 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Preparation and Structure of Thin Films of Boron on Silicon written by E. T. Peters and published by . This book was released on 1965 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Control of Electromagnetic Scattering by Impedance Loading written by J. K. Schindler and published by . This book was released on 1965 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Plurality count Diversity Combining for Fading M ary Transmissions written by John N. Pierce and published by . This book was released on 1965 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: The performance of a plurality-count diversity combiner for fading M-ary transmissions is analyzed, and calculated error probabilities are presented graphically for alphabet sizes of 2, 8, and 32. The performance is shown to be within 3 dB of that of an optimum square-law combiner for moderate alphabet sizes when there is no restriction on the allowable number of diversity branches. It is shown that a worthwhile saving in transmitted power can be effected by using nonbinary alphabets with plurality-count combining for the transmission of binary data. The availability of extra information from the combiner for use with error-correction is discussed.

Download or read book The Paraboloid Mirror written by Carlyle J. Sletten and published by . This book was released on 1965 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Some Extremal Properties of the Dolph Array written by Charles J. Drane (Jr.) and published by . This book was released on 1965 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Adsorption of Inorganic Anions on a Mercury Electrode from Solutions of Formamide written by Richard Payne and published by . This book was released on 1965 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: A theory of hydromagnetic ionizing waves has been developed which is valid in the region in which gas pressure is negligible, compared with magnetic pressure. The theory takes into account the energy expended in partial ionization of the gas behind the wave. The usual high conductivity boundary condition behind the wave is not employed. The electric field in front of the wave is taken as a parameter. Results of this theory are compared with available experimental measurements, and show good agreement. (Author).

Download or read book Numerical Solution of Full wave Equation with Mode coupling written by Yuji Inoue and published by . This book was released on 1966 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new method for the numerical solution of the wave equation governing the propagation of electromagnetic waves in a horizontally stratified, inhomogeneous, anisotropic layer is described. The wave equation is a homogeneous set of four linear differential equations of the first order. In the computer calculation, all singularities of the wave equation are removed in practical cases and a proper step-size based on the gradients of the medium properties is programmed automatically. The multiplicative nature of the solutions facilitates the procedure. Modification of solutions from one height to another is expressed in explicit form on the assumption that the propagation tensor varies linearly with height in each step of integration. In the mathematical development, matrix operations are extensively used in order to achieve a general representation. Four independent solutions of the wave equation are derived. During an ordinary integration for an inhomogeneous medium, a degradation occurs inevitably in the degree of linear independence among special solutions. This cause is analyzed. To obtain a complete set of special solutions with good linear independence, a particular device is developed for general applications. This method has been programmed for computer calculation by an IBM 7090. The resultant wave fields and wave polarizations for the independent modes are shown for a model ionosphere. The resultant wave is described as a 'scrambling' of four characteristic waves. The 'scrambling' state is visualized at each height. (Author).

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1968 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Download or read book OAR Cumulative Index of Research Results written by and published by . This book was released on with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: