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Author: Klaus Hentschel Publisher: ISBN: 9780198509530 Category : Research Languages : en Pages : 596
Book Description
Ever since the boom of spectrum analysis in the 1860s, spectroscopy has become one of the most fruitful research technologies in analytic chemistry, physics, astronomy, and other sciences. This book is the first in-depth study of the ways in which various types of spectra, especially the sun's Fraunhofer lines, have been recorded, displayed, and interpreted. The book assesses the virtues and pitfalls of various types of depictions, including hand sketches, woodcuts, engravings, lithographs and, from the late 1870s onwards, photomechanical reproductions. The material of a 19th-century engraver or lithographer, the daily research practice of a spectroscopist in the laboratory, or a student's use of spectrum posters in the classroom, all are looked at and documented here. For pioneers of photography such as John Herschel or Hermann Wilhelm Vogel, the spectrum even served as a prime test object for gauging the color sensitivity of their processes. This is a broad, contextual portrayal of the visual culture of spectroscopy in the 19th and early 20th centuries. The illustrations are not confined to spectra--they show instruments, laboratories, people at work, and plates of printing manuals. The result is a multifacetted description, focusing on the period from Fraunhofer up to the beginning of Bohr's quantum theory. A great deal of new and fascinating material from two dozen archives has been included. A must for anyone interested in the history of modern science or in research practice using visual representations.
Author: Klaus Hentschel Publisher: ISBN: 9780198509530 Category : Research Languages : en Pages : 596
Book Description
Ever since the boom of spectrum analysis in the 1860s, spectroscopy has become one of the most fruitful research technologies in analytic chemistry, physics, astronomy, and other sciences. This book is the first in-depth study of the ways in which various types of spectra, especially the sun's Fraunhofer lines, have been recorded, displayed, and interpreted. The book assesses the virtues and pitfalls of various types of depictions, including hand sketches, woodcuts, engravings, lithographs and, from the late 1870s onwards, photomechanical reproductions. The material of a 19th-century engraver or lithographer, the daily research practice of a spectroscopist in the laboratory, or a student's use of spectrum posters in the classroom, all are looked at and documented here. For pioneers of photography such as John Herschel or Hermann Wilhelm Vogel, the spectrum even served as a prime test object for gauging the color sensitivity of their processes. This is a broad, contextual portrayal of the visual culture of spectroscopy in the 19th and early 20th centuries. The illustrations are not confined to spectra--they show instruments, laboratories, people at work, and plates of printing manuals. The result is a multifacetted description, focusing on the period from Fraunhofer up to the beginning of Bohr's quantum theory. A great deal of new and fascinating material from two dozen archives has been included. A must for anyone interested in the history of modern science or in research practice using visual representations.
Author: Spectrum Publisher: Carson-Dellosa Publishing ISBN: 1483813010 Category : Juvenile Nonfiction Languages : en Pages : 132
Book Description
Winding through purple mountains majesties and amber waves of grain, the standards-based Spectrum Geography: Regions of the U.S.A. for grade 4 guides your childÕs understanding of maps, regions, canals, tributaries, and more using colorful illustrations and informational text. --Spectrum Geography is an engaging geography resource that goes beyond land formations and mapsÑit opens up childrenÕs perspectives through local, national, and global adventures without leaving their seats.
Author: Prabhu Janakaraj Publisher: ISBN: Category : Electronic dissertations Languages : en Pages : 23
Book Description
In recent years, applications using wireless technology has dramatically increased. This has led to the challenge of improving the spatio-temporal spectrum utilization. Dynamic spectrum access is a method of opportunistically accessing the spectrum. Identifying the unused spectrum is one of the key challenge for dynamic spectrum access. Regulatory bodies recommend the usage of centralized database to maintain the unused spectrum at various geographic locations. These databases are constructed with the help of propagation models. Propagation models are not accurate enough for effcient spectrum utilization. To encounter this problem, we propose a cloud-based and crowd- augmented spectrum mapping database by combining the manual spectrum measurements from various mobile devices. Then, we show how optimal sampling can help in achieving high resolution, high accurate spectrum mapping in minimal cost.
Author: Publisher: Carson-Dellosa Publishing ISBN: 1483818446 Category : Juvenile Nonfiction Languages : en Pages : 128
Book Description
Winding through purple mountains majesties and amber waves of grain, the standards-based Spectrum Geography: Communities for grade 3 guides your child’s understanding of landforms, oceans, rivers, communities, the environment, and more using colorful illustrations and informational text. Spectrum Geography is an engaging geography resource that goes beyond land formations and maps—it opens up children’s perspectives through local, national, and global adventures without leaving their seats.
Author: Robin Harte Publisher: Springer ISBN: 3319056484 Category : Mathematics Languages : en Pages : 132
Book Description
Written by an author who was at the forefront of developments in multi-variable spectral theory during the seventies and the eighties, this guide sets out to describe in detail the spectral mapping theorem in one, several and many variables. The basic algebraic systems – semigroups, rings and linear algebras – are summarised, and then topological-algebraic systems, including Banach algebras, to set up the basic language of algebra and analysis. Spectral Mapping Theorems is written in an easy-to-read and engaging manner and will be useful for both the beginner and expert. It will be of great importance to researchers and postgraduates studying spectral theory.
Author: William A. Sethares Publisher: Springer Science & Business Media ISBN: 1447141776 Category : Music Languages : en Pages : 346
Book Description
Tuning, Timbre, Spectrum, Scale focuses on perceptions of consonance and dissonance, and how these are dependent on timbre. This also relates to musical scale: certain timbres sound more consonant in some scales than others. Sensory consonance and the ability to measure it have important implications for the design of audio devices and for musical theory and analysis. Applications include methods of adapting sounds for arbitrary scales, ways to specify scales for nonharmonic sounds, and techniques of sound manipulation based on maximizing (or minimizing) consonance. Special consideration is given here to a new method of adaptive tuning that can automatically adjust the tuning of a piece based its timbral character so as to minimize dissonance. Audio examples illustrating the ideas presented are provided on an accompanying CD. This unique analysis of sound and scale will be of interest to physicists and engineers working in acoustics, as well as to musicians and psychologists.
Author: W Marshall Watts Publisher: Arkose Press ISBN: 9781345691351 Category : Languages : en Pages : 600
Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: Klaus Hentschel
Author: Klaus Hentschel
Author: William Marshall Watts
Author: Spectrum
Author: Prabhu Janakaraj
Author: 
Author: Robin Harte
Author: William A. Sethares
Author: Abbas Termos
Author: Harry Clary Jones
Author: W Marshall Watts