Wavefronts And Rays
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Ophthalmology
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Author : Myron Yanoff
language : en
Publisher: Elsevier Health Sciences
Release Date : 2009-01-01
Ophthalmology written by Myron Yanoff and has been published by Elsevier Health Sciences this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-01-01 with Medical categories.
Based on feedback, the authors have streamlined their bestselling reference to zero in on just the clinical answers ophthalmologists need in day-to-day practice. This new edition presents unparalleled guidance on nearly every ophthalmic condition and procedure.
The Optics Of Rays Wavefronts And Caustics
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Author : O Stavroudis
language : en
Publisher: Elsevier
Release Date : 2012-12-02
The Optics Of Rays Wavefronts And Caustics written by O Stavroudis and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-02 with Science categories.
The Optics of Rays, Wavefronts, and Caustics presents the fundamental principles of geometrical optics and its unique role in modern technology. It also discusses the procedures used in optical design, which are based on geometrical optics. Organized into 16 chapters, this volume begins with an overview of the underlying general mathematical facts, which constitute the substance of geometrical optics. It then presents the various techniques used to solve the ray and wavefront problems in general inhomogeneous medium. Other chapters consider the concept of ray tracing as a tool for calculating the principal curvatures of a wavefront as it propagates through a lens. In addition, the book tackles several topics, including the aspects of lens design, as well as a system of equations that are similar to the Maxwell equations. The last chapter deals with orthotomic systems of rays. Optical designers, optical physicists, theoretical physicists, and mathematicians will find the information and methods in this book extremely useful.
The Optics Of Rays Wavefronts And Caustics
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Author : O Stavroudis
language : en
Publisher: Academic Press
Release Date : 1972-10-28
The Optics Of Rays Wavefronts And Caustics written by O Stavroudis and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972-10-28 with Science categories.
The book provides a study of the mathematical foundation of geometrical optics. Included are: (a) Techniques for solving ray and wavefront problems in general inhomogeneous media-relevant particularly to the recently evolved concept of the 'inhomogeneous lens'. (b) Generalized ray tracing, a technique for calculating, in a ray neighborhood, the principal curvatures of a wavefront as it propagates through a lens. This process is immediately applicable to computer lens design programs. (c) A general solution for the eikonal equation for a homogeneous medium providing a general description of wavefronts in analytic terms. The book also treats several topics of considerable theoretical interest, including: (a) A system of equations, similar to the Maxwell equations but derived from the postulates of geometrical optics alone. (b) An algebraic theory of lens design in which lenses are represented as group elements. This treatise will be of particular importance to optical designers and optical physicists. For its formalistic treatment, mathematicians and theoretical physicists will find it considerably valuable. (Author).
Wavefronts And Rays As Characteristics And Asymptotics
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Author : Andrej B¢na
language : en
Publisher: World Scientific
Release Date : 2011
Wavefronts And Rays As Characteristics And Asymptotics written by Andrej B¢na and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Science categories.
This textbook ? incorporated with many illuminating examples and exercises ? is aimed at graduate students of physical sciences and engineering. The purpose is to provide a background of physics and underlying mathematics for the concept of rays, filling the gap between mathematics and physics textbooks for a coherent treatment of all topics. The authors' emphasis and extremely good presentation of the theory of characteristics, which defines the rays, accentuate the beauty and versatility of this theory. To this end, the rigour of the formulation ? by a pure mathematician's standards ? is downplayed to highlight the physical meaning and to make the subject accessible to a wider audience. The authors describe in detail the theory of characteristics for different types of differential equations, the applications to wave propagation in different types of media, and the phenomena such as caustics.
Introduction To Petroleum Seismology Second Edition
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Author : Luc T. Ikelle
language : en
Publisher: SEG Books
Release Date : 2018-03-26
Introduction To Petroleum Seismology Second Edition written by Luc T. Ikelle and has been published by SEG Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-03-26 with Science categories.
Introduction to Petroleum Seismology, second edition (SEG Investigations in Geophysics Series No. 12) provides the theoretical and practical foundation for tackling present and future challenges of petroleum seismology especially those related to seismic survey designs, seismic data acquisition, seismic and EM modeling, seismic imaging, microseismicity, and reservoir characterization and monitoring. All of the chapters from the first edition have been improved and/or expanded. In addition, twelve new chapters have been added. These new chapters expand topics which were only alluded to in the first edition: sparsity representation, sparsity and nonlinear optimization, near-simultaneous multiple-shooting acquisition and processing, nonuniform wavefield sampling, automated modeling, elastic-electromagnetic mathematical equivalences, and microseismicity in the context of hydraulic fracturing. Another major modification in this edition is that each chapter contains analytical problems as well as computational problems. These problems include MatLab codes, which may help readers improve their understanding of and intuition about these materials. The comprehensiveness of this book makes it a suitable text for undergraduate and graduate courses that target geophysicists and engineers as well as a guide and reference work for researchers and professionals in academia and in the petroleum industry.
Introduction To Antenna Placement And Installation
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Author : Thereza Macnamara
language : en
Publisher: John Wiley & Sons
Release Date : 2010-03-04
Introduction To Antenna Placement And Installation written by Thereza Macnamara and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-03-04 with Technology & Engineering categories.
Introduction to Antenna Placement and Installation introduces the characteristics of antennas and their integration on aircraft. The book covers antenna siting and placement, computational antenna modelling on structures, measurement on sub-scale models of the airframe, full-scale ground measurements and in-flight measurements. The author addresses the different stages in the process of developing an entire antenna layout, as well as covering individual retrofits on existing platforms. She explains the physics of antenna placement qualitatively, thus obviating the requirement to understand complex mathematical equations. Provides a reference book & guide written primarily for Antenna and Integration Engineers but which will also be of interest to Systems Engineers and Project Managers Includes chapters on aircraft systems using antennas, restrictions & trade-offs, frequency & spatial coverage considerations, effect of other antennas & obstacles, RF interoperability issues associated with radiated emissions, computer modelling software, scaled model & full-scale measurements, comparison between measurements & modelling, as well as ground tests and in-flight measurements Describes techniques that can be applied equally to antennas on other structures such as land or sea vehicles and spacecraft Illustrated throughout with figures & diagrams as well as a full colour plates
Antenna Handbook
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Author : Y.T. Lo
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-06-29
Antenna Handbook written by Y.T. Lo and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-29 with Technology & Engineering categories.
Techniques based on the method of modal expansions, the Rayleigh-Stevenson expansion in inverse powers of the wavelength, and also the method of moments solution of integral equations are essentially restricted to the analysis of electromagnetic radiating structures which are small in terms of the wavelength. It therefore becomes necessary to employ approximations based on "high-frequency techniques" for performing an efficient analysis of electromagnetic radiating systems that are large in terms of the wavelength. One of the most versatile and useful high-frequency techniques is the geometrical theory of diffraction (GTD), which was developed around 1951 by J. B. Keller [1,2,3]. A class of diffracted rays are introduced systematically in the GTD via a generalization of the concepts of classical geometrical optics (GO). According to the GTD these diffracted rays exist in addition to the usual incident, reflected, and transmitted rays of GO. The diffracted rays in the GTD originate from certain "localized" regions on the surface of a radiating structure, such as at discontinuities in the geometrical and electrical properties of a surface, and at points of grazing incidence on a smooth convex surface as illustrated in Fig. 1. In particular, the diffracted rays can enter into the GO shadow as well as the lit regions. Consequently, the diffracted rays entirely account for the fields in the shadow region where the GO rays cannot exist.
The Geometrical Optics Workbook
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Author : David S. Loshin
language : en
Publisher: Elsevier Health Sciences
Release Date : 2015-01-28
The Geometrical Optics Workbook written by David S. Loshin and has been published by Elsevier Health Sciences this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-01-28 with Medical categories.
This workbook is designed to supplement optics textbooks and covers all the traditional topics of geometrical optics. Terms, equations, definitions, and concepts are discussed briefly and explained through a series of problems that are worked out in a step-by-step manner which simplifies the problem-solving process. Additional practice problems are provided at the end of each chapter.* - An indispensable tool when studying for the state and National Boards * - An ideal supplement to optics textbooks * - Covers the traditional topics of geometrical optics.
Introductory Biomedical Imaging
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Author : Bethe A. Scalettar
language : en
Publisher: CRC Press
Release Date : 2022-09-08
Introductory Biomedical Imaging written by Bethe A. Scalettar and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-09-08 with Science categories.
Imaging is everywhere. We use our eyes to see and cameras to take pictures. Scientists use microscopes and telescopes to peer into cells and out to space. Doctors use ultrasound, X-rays, radioisotopes, and MRI to look inside our bodies. If you are curious about imaging, open this textbook to learn the fundamentals. Imaging is a powerful tool in fundamental and applied scientific research and also plays a crucial role in medical diagnostics, treatment, and research. This undergraduate textbook introduces cutting-edge imaging techniques and the physics underlying them. Elementary concepts from electromagnetism, optics, and modern physics are used to explain prominent forms of light microscopy, as well as endoscopy, ultrasound, projection radiography and computed tomography, radionuclide imaging, and magnetic resonance imaging. This textbook also covers digital image processing and analysis. Theoretical principles are reinforced with illustrative homework problems, applications, activities, and experiments, and by emphasizing recurring themes, including the effects of resolution, contrast, and noise on image quality. Readers will learn imaging fundamentals, diagnostic capabilities, and strengths and weaknesses of techniques. This textbook had its genesis, and has been vetted, in a "Biomedical Imaging" course at Lewis & Clark College in Portland, OR, and is designed to facilitate the teaching of similar courses at other institutions. It is unique in its coverage of both optical microscopy and medical imaging at an intermediate level, and exceptional in its coverage of material at several levels of sophistication.
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Author :
language : en
Publisher: Arihant Publications India limited
Release Date :
written by and has been published by Arihant Publications India limited this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.