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Author: Mike Davies
Publisher: Amberley Publishing Limited
Published: 2013-02-15
Total Pages: 192
ISBN-13: 1445613425
DOWNLOAD EBOOKThis fascinating selection of photographs traces some of the many ways in which Rayleigh has changed and developed over the last century.
Author: Mike Davies
Publisher: Amberley Publishing Limited
Published: 2015-11-15
Total Pages: 192
ISBN-13: 1445645335
DOWNLOAD EBOOKExplore Rayleigh’s history through a fascinating selection of postcards.
Author: Sam Stuart
Publisher: Elsevier
Published: 2013-09-11
Total Pages: 553
ISBN-13: 1483140822
DOWNLOAD EBOOKUltrasonics International 83 contains the proceedings of the Ultrasonics International Conference held in Halifax, Canada, on July 12-14, 1983. The papers focus on the role of ultrasound in various fields such as non-destructive testing, aerospace, high power, and medicine. The papers are organized into 24 sessions, which first discuss the applications of ultrasonics in aerospace. The session on non-destructive testing then describes ultrasonic applications including automatic in-motion inspection of the tread of railway wheels by EMA excited Rayleigh waves; effect of material deformation on the velocity of critically refracted shear waves in railroad rail; and crack depth estimation using wideband laser generated surface acoustic waves. The next session is concerned with medical ultrasonics and includes papers exploring the use of reflectivity tomography in attenuating media, wave propagation in biological tissue, and ultrasonic Doppler measurement of blood flow volume rate in the abdomen. The sessions that follow consider acoustic emission, visualization, material characterization, optoacoustics, and the physics of ultrasonics. High power and underwater ultrasonics, acoustic microscopy, transducers, and instrumentation are also discussed. This monograph will be of value to physicists and other scientists interested in ultrasonics.
Author: Leilei Chen
Publisher: Frontiers Media SA
Published: 2023-07-19
Total Pages: 197
ISBN-13: 2832530001
DOWNLOAD EBOOKAuthor: G. J. Hernandez
Publisher:
Published: 1963
Total Pages: 40
ISBN-13:
DOWNLOAD EBOOKRaylegh's published data on the airglow green line covering an entire sunspot cycle have been little used because of the manner of presentation. These data have been reexamined and the results for the different stations put on a common basis and converted to present-day units. The assumptions and constants used by Rayleigh in his absolute calibration have been carefully checked, with a resulting small change in the absolute intensity that he had reported. Since Rayleigh worked with wide bandpass filters, a discussion of current knowledge of the night-sky continuum and its correlation with the green line has also been included. (Author).
Author:
Publisher:
Published: 1986
Total Pages: 1162
ISBN-13:
DOWNLOAD EBOOKAuthor: Sung-Moon Michael Yang
Publisher: Springer
Published: 2018-06-04
Total Pages: 688
ISBN-13: 3319715682
DOWNLOAD EBOOKThis book serves as an easily accessible reference for wireless digital communication systems. Topics are presented with simple but non-trivial examples and then elaborated with their variations and sophistications. It includes numerous examples and exercises to illustrate key points. The book emphasizes both practical problem solving and a thorough understanding of fundamentals, aiming to realize the complementary relationship between practice and theory. Though the author emphasize wireless radio channels, the fundamentals that are covered are useful to different channels - digital subscriber line, coax, power lines, optical fibers, and even Gigabit serial interconnection. This book is the outgrowth of the author’s hands-on experience in the telecommunication systems industry as a research and development engineer. It is written primarily for practitioners of wireless digital communication systems – engineers and technical leaders and managers – and for digital communication systems in general including new comers like graduate students and upper-division undergraduate students. The material in chapters 5(OFDM), 6(Channel coding), 7(Synchronization) and 8(Transceivers) contains something new, not explicitly available in typical textbooks, and useful in practice. For example, in Chapter 5, all known orthogonal frequency division multiplex signals are formulated based on pulse shape and thus flexible, e.g., unlike currently predominant symbol block transmission, it can be serial transmission. In Chapter 6, we emphasize practical applications of powerful error coding such as LDPC to higher order modulations, fading, and non-linearity problem. In Chapter 7, new digital timing detectors are suggested for small access bandwidth shaping pulse, and a digital quadrature imbalance correction is also included along with digital carrier phase recovery. In Chapter 8, low IF digital image cancelling transceiver is treated in detail so that practical implementation can be readily done with advantages.
Author: Tolga M. Duman
Publisher: John Wiley & Sons
Published: 2008-03-11
Total Pages: 366
ISBN-13: 9780470724330
DOWNLOAD EBOOKCoding for MIMO Communication Systems is a comprehensive introduction and overview to the various emerging coding techniques developed for MIMO communication systems. The basics of wireless communications and fundamental issues of MIMO channel capacity are introduced and the space-time block and trellis coding techniques are covered in detail. Other signaling schemes for MIMO channels are also considered, including spatial multiplexing, concatenated coding and iterative decoding for MIMO systems, and space-time coding for non-coherent MIMO channels. Practical issues including channel correlation, channel estimation and antenna selection are also explored, with problems at the end of each chapter to clarify many important topics. A comprehensive book on coding for MIMO techniques covering main strategies Theories and practical issues on MIMO communications are examined in detail Easy to follow and accessible for both beginners and experienced practitioners in the field References at the end of each chapter for further reading Can be used with ease as a research book, or a textbook on a graduate or advanced undergraduate level course This book is aimed at advanced undergraduate and postgraduate students, researchers and practitioners in industry, as well as individuals working for government, military, science and technology institutions who would like to learn more about coding for MIMO communication systems.
Author: Darrell P. Rowbottom
Publisher: Routledge
Published: 2019-03-25
Total Pages: 216
ISBN-13: 0429663579
DOWNLOAD EBOOKRoughly, instrumentalism is the view that science is primarily, and should primarily be, an instrument for furthering our practical ends. It has fallen out of favour because historically influential variants of the view, such as logical positivism, suffered from serious defects. In this book, however, Darrell P. Rowbottom develops a new form of instrumentalism, which is more sophisticated and resilient than its predecessors. This position—‘cognitive instrumentalism’—involves three core theses. First, science makes theoretical progress primarily when it furnishes us with more predictive power or understanding concerning observable things. Second, scientific discourse concerning unobservable things should only be taken literally in so far as it involves observable properties or analogies with observable things. Third, scientific claims about unobservable things are probably neither approximately true nor liable to change in such a way as to increase in truthlikeness. There are examples from science throughout the book, and Rowbottom demonstrates at length how cognitive instrumentalism fits with the development of late nineteenth- and early twentieth-century chemistry and physics, and especially atomic theory. Drawing upon this history, Rowbottom also argues that there is a kind of understanding, empirical understanding, which we can achieve without having true, or even approximately true, representations of unobservable things. In closing the book, he sets forth his view on how the distinction between the observable and unobservable may be drawn, and compares cognitive instrumentalism with key contemporary alternatives such as structural realism, constructive empiricism, and semirealism. Overall, this book offers a strong defence of instrumentalism that will be of interest to scholars and students working on the debate about realism in philosophy of science.
Author: Sir Norman Lockyer
Publisher:
Published: 1921
Total Pages: 640
ISBN-13:
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