The D Llenbachs In America 1710 1935
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The D Llenbachs In America
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Author : Andrew Luther Dillenbeck
language : en
Publisher:
Release Date : 1969
The D Llenbachs In America written by Andrew Luther Dillenbeck and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with categories.
Jorg Martin Dällenbach (b.ca.1690) and his family emigrated from Switzerland to Neu Castle (near present West Camp) along the Hudson River, New York, moving in 1722 to Stone Arabia in the Mohawk Valley, New York. Includes records of other Dällenbach immigrants from Switzerland to New York and Pennsylvania. Descendants of all these immigrants (chiefly spelling the surname Dillenbeck) lived in New York, Pennsylvania, Ohio, Illinois, Iowa, Utah, Minnesota, Oregon and elsewhere. Includes some descendants who immigrated to Alberta and elsewhere in Canada. Vol. 2 includes descendants of some immigrants from the Alsace-Lorraine area of Germany or France.
Countryman Genealogy
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Author : Alvin Countryman
language : en
Publisher:
Release Date : 1997-07-01
Countryman Genealogy written by Alvin Countryman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997-07-01 with categories.
Diagnostic Ultrasound
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Author : K. Kirk Shung
language : en
Publisher: CRC Press
Release Date : 2005-09-19
Diagnostic Ultrasound written by K. Kirk Shung and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-09-19 with Medical categories.
Ultrasound imaging is one of the most important and widely used diagnostic tools in modern medicine, second only to the conventional x-ray. Although considered a mature field, research continues for improving the capabilities and finding new uses for ultrasound technology while driving down the cost of newer, more complicated procedures such as int
Micromachined Ultrasonic Transducers
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Author :
language : en
Publisher:
Release Date : 1997
Micromachined Ultrasonic Transducers written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with categories.
Microfabricated ultrasonic transducers have been generated which operate in both liquids and gases. Air coupled through transmission of aluminum was observed for the first time using a pair of 2.3 MHz transducers. The dynamic range of the transducers was 110 dB, and the received signal had an SNR of 30 dB. Air coupled through transmission of steel and glass has also been observed. A theoretical model for the transducers has been refined and agrees well with experimental results. A robust microfabrication process has been developed and was used to generate air transducers which resonate from 2 to 12 MHz, as well as immersion transducers that operate in water from 1 to 20 MHz with a 60 dB dynamic range. Optimized immersion and air transducers have been designed and a dynamic range above 110 dB is anticipated. This development effort finds applications in hydrophones, medical ultrasound, nondestructive evaluation, ranging, flow metering, and scanning tip force sensing and lithography.
Acoustical Imaging
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Author : Helmut Ermert
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Acoustical Imaging written by Helmut Ermert 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 2012-12-06 with Science categories.
This book constitutes the proceedings of the 19th International Symposium on Acoustical Imaging at the Ruhr-University Bochum, Germany during April 3 -5, 1991. It was the first time that the symposium was held in Europe after major political changes happened in that area. The freedom to travel for all people from eastern European countries was an obvious reason for the great numbers of sub mitted abstracts and for numerous conference participants. 193 of 239 submitted contributions from 29 countries were accepted for presentation by authors from USA (13%), Canada (2%), Japan (7%), Peoples Republic of China (7%), United Kingdom (4%), France (7%), Italy (3%), Poland (4%), Soviet Union (7%), Germany (28%) and other countries (18%). 283 scientists from 29 countries attended the conference representing the interdisciplinary field between mathematics, physics, engineering and medicine. 151 papers were available for publication in this proceedings covering the topics 1. Mathematics and Physics of Acoustical Imaging 2. Components and Systems 3. Applications in Medicine and Biology 4. Applications in Nondestructive Testing 5. Remote Sensing Applications 6. Industrial Applications A relative large number of contributions on acoustical microscopy was included in the conference program within topics 3 and 4. Also, papers on "non-traditional" acoustical imaging subjects, e. g. on phonon imaging and on remote sensing in the atmosphere, have broadened the scope of the conference. The success and stimulation of the conference and of the papers presented in this volume is owed, of course to the authors and participants.
Phononic Crystals
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Author : Vincent Laude
language : en
Publisher: Walter de Gruyter GmbH & Co KG
Release Date : 2015-09-14
Phononic Crystals written by Vincent Laude and has been published by Walter de Gruyter GmbH & Co KG this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-09-14 with Science categories.
Phononic crystals are artificial periodic structures that can alter efficiently the flow of sound, acoustic waves, or elastic waves. They were introduced about twenty years ago and have gained increasing interest since then, both because of their amazing physical properties and because of their potential applications. The topic of phononic crystals stands as the cross-road of physics (condensed matter physics, wave propagation in inhomogeneous and periodic media) and engineering (acoustics, ultrasonics, mechanical engineering, electrical engineering). Phononic crystals cover a wide range of scales, from meter-size periodic structures for sound in air to nanometer-size structures for information processing or thermal phonon control in integrated circuits. Phononic crystals have a definite relation with the topic of photonic crystals in optics. The marriage of phononic and photonic crystals also provides a promising structural basis for enhanced sound and light interaction. As the topic is getting popular, it is nowadays presented and discussed at various international conferences. After the first ten years during which the topic has remained mainly theoretical with a few proof-of-concept demonstrations in the literature, the evolution has been towards applications, instrumentation, and novel designs. The physical explanations for various effects are now well understood and efficient numerical methods and analysis tools have been developed. The book contains a comprehensive set of finite element model (FEM) scripts for solving basic phononic crystal problems. The scripts are short, easy to read, and efficient, allowing the reader to generate for him(her)self band structures for 2D and 3D phononic crystals, to compute Bloch waves, waveguide and cavity modes, and more.
Electroacoustic Devices Microphones And Loudspeakers
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Author : Glen Ballou
language : en
Publisher: Taylor & Francis
Release Date : 2012-09-10
Electroacoustic Devices Microphones And Loudspeakers written by Glen Ballou and has been published by Taylor & Francis this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-09-10 with Technology & Engineering categories.
This is the definitive reference for microphones and loudspeakers, your one-stop reference covering in great detail all you could want and need to know about electroacoustics devises (microphones and loudspeakers). Covering both the technology and the practical set up and placement this guide explores and bridges the link between experience and the technology, giving you a better understanding of the tools to use and why, leading to greatly improved results.