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Author : James Ronald Bowers
Publisher : Unknown
Page : 72 pages
File Size : 46,6 Mb
Release : 1994
Category : Electronic
ISBN : WISC:89052199551
Author : Voichita Bucur
Publisher : Springer Science & Business Media
Page : 403 pages
File Size : 45,7 Mb
Release : 2006-03-09
Category : Technology & Engineering
ISBN : 9783540305941
Considerable activity in the acoustics of wood has occurred since the first edition of this book in 1995. An informal survey of a number of the published articles and papers presented at international conferences revealed that the interest of the wood science community is continually increasing. In this context, I felt c- pelled to revise the text in accordance with newer findings and this prompted the addition in the present book of 159 new references added to the existing 850 in the first edition. As a result of the favorable comments upon the first edition, from students and colleagues, I have included a part on mathematical theory related to wave pro- gation in orthotropic solids in the general text, in order to enable the interested reader to follow the essentially physical aspects of the subject. A new chapter related to “acousto-ultrasonics” is introduced; Chapters 4, 5, 6, 8, 9, 10, 11, and 12 have been considerably expanded and a significant redistribution of the subject matter from the earlier edition has been made.
Author : Malur Srinivasan
Publisher : BoD – Books on Demand
Page : 362 pages
File Size : 42,7 Mb
Release : 2012-09-26
Category : Technology & Engineering
ISBN : 9789535107743
This book deals with various science and technology factors that need careful consideration in producing a casting. It consists of 11 chapters contributed by experts in their respective fields. The topics include simulation of continuous casting process, control of solidification of continuous castings, influence of mold flux in continuous casting, segregation in strip casting of steel, developments in shell and solid investment mold processes, innovative pressure control during filling of sand molds, fracture toughness specifically of castings, permanent molding of cast iron, wear resistant castings and improvement of accuracy in estimating graphite nodularity in ductile iron castings.
Author : Anonim
Publisher : Unknown
Page : 810 pages
File Size : 44,6 Mb
Release : 1952
Category : Mechanics, Applied
ISBN : STANFORD:36105013125765
Author : Voichita Bucur
Publisher : CRC Press
Page : 529 pages
File Size : 41,7 Mb
Release : 2017-11-22
Category : Technology & Engineering
ISBN : 9781351357357
Acoustics of Wood offers a detailed treatment of numerous topics that are valuable to those working with wood in architecture, engineering, acoustics, and the crafting of musical instruments. It presents a comprehensive account of the progress and current knowledge concerning wood acoustics, outlining the anatomy and physiology of wood and the specific applications in which its acoustic properties are relevant. Acoustics of Wood reviews state-of-the-art measurement systems and includes material that has not been widely published. Divided into three main parts, the book describes environmental acoustics, presents acoustics methods for the characterization of the elastic behavior of wood, and discusses acoustic methods for the assessment of wood quality.
Author : Voichita Bucur
Publisher : Springer
Page : 975 pages
File Size : 45,7 Mb
Release : 2016-08-29
Category : Technology & Engineering
ISBN : 9783319320809
This book addresses core questions about the role of materials in general and of wood in particular in the construction of string instruments used in the modern symphony orchestra – violins, violas, cellos and basses. Further attention is given to materials for classical guitars, harps, harpsichords and pianos. While some of the approaches discussed are traditional, most of them depend upon new scientific approaches to the study of the structure of materials, such as for example wood cell structure, which is visible only using modern high resolution microscopic techniques. Many examples of modern and classical instruments are examined, together with the relevance of classical techniques for the treatment of wood. Composite materials, especially designed for soundboards could be a good substitute for some traditional wood species. The body and soundboard of the instrument are of major importance for their acoustical properties, but the study also examines traditional and new wood species used for items such as bows, the instrument neck, string pegs, etc. Wood species’ properties for musical instruments and growth origins of woods used by great makers such as Antonio Stradivari are examined and compared with more recently grown woods available to current makers. The role of varnish in the appearance and acoustics of the final instrument is also discussed, since it has often been proposed as a ‘secret ingredient’ used by great makers. Aspects related to strings are commented.As well as discussing these subjects, with many illustrations from classical and contemporary instruments, the book gives attention to conservation and restoration of old instruments and the physical results of these techniques. There is also discussion of the current value of old instruments both for modern performances and as works of art having great monetary value.The book will be of interest and value to researchers, advanced students, music historians, and contemporary string instrument makers. Musicians in general, particularly those playing string instruments, will also find its revelations fascinating. It will also attract the attention of those using wood for a variety of other purposes, for its use in musical instruments uncovers many of its fundamental features. Professor Neville H. FletcherAustralian National University, Canberra
Author : C. T. Sun
Publisher : CRC Press
Page : 1685 pages
File Size : 48,5 Mb
Release : 2002-10-24
Category : Technology & Engineering
ISBN : 9780849315015
Author : A. Alippi,Walter G. Mayer
Publisher : Springer Science & Business Media
Page : 407 pages
File Size : 41,8 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9789400935754
The purpose of the School, the content of which is reflected in this book, is to bring together experiences and knowledge of those acousticians who are particularly sensible to materials and their properties, specifically to those materials that may be called inhomo geneous. The two things together: acoustics and inhomogeneity, define factually a dimension less parameter, AI a, which is the ratio between the sound wavelength and the spatial length of the material where its physical characteristics notably change. An implicit defmition is, therefore, at hand for an inhomogeneous medium, which has the characteristic of a condi tioned definition and sets a looser constraint to the otherwise strict statement of invariance under translations. Composite, biologicai, porous, stratified materials are in the list of inhomogeneous materials, whose technological or structural interest has grown greatly in recent times. Ul trasonic waves offer a means for their investigation, which is valuable for it can be non destructive, continuous in time, spatially localized, dependent on the size of inhomoge neities.
Author : Anonim
Publisher : Elsevier
Page : 374 pages
File Size : 55,9 Mb
Release : 2012-12-02
Category : Science
ISBN : 9780323138321
Ultrasonic Measurement Methods describes methods used in ultrasonic measurements and covers topics ranging from radiated fields of ultrasonic transducers to the measurement of ultrasonic velocity and ultrasonic attenuation, along with the physical principles of measurements with electromagnetic-acoustic transducers (EMATs). Optical detection of ultrasound and measurement of the electrical characteristics of piezoelectric devices are also examined. Comprised of seven chapters, this volume begins with an analysis of the radiated fields of ultrasonic transducers, followed by a discussion on the measurement of ultrasonic velocity and attenuation. The next chapter describes the physical principles of measurement with EMATs and the advantages of such devices based on their couplant-free operation. Optical detection of ultrasound is then considered, together with the problem of measuring the electrical characteristics of piezoelectric resonators and standard methods for obtaining the equivalent electrical parameter values. The final chapter is devoted to ultrasonic pulse scattering in solids and highlights many fascinating examples of wave scattering, some of which are accompanied by theoretical analysis. This book will be of interest to physicists.
Author : C.M. Langton,C.F. Njeh
Publisher : CRC Press
Page : 495 pages
File Size : 52,8 Mb
Release : 2016-04-19
Category : Medical
ISBN : 9781000687446
Bone is a complex biological material that consists of both an inorganic and organic phase, which undergoes continuous dynamic biological processes within the body. This complex structure and the need to acquire accurate data have resulted in a wide variety of methods applied in the physical analysis of bone in vivo and in vitro. Each method has it
Author : Eric S. Orwoll,Michael Bliziotes
Publisher : Springer Science & Business Media
Page : 606 pages
File Size : 50,5 Mb
Release : 2002-08-02
Category : Medical
ISBN : 9781592592784
In Osteoporosis: Pathophysiology and Clinical Management, leading clinicians and researchers join forces to illuminate in coupled chapters all the major scientific and clinical aspects of osteoporosis. On the basic science side, topics range from the genetics of osteoporosis and bone turnover markers, to androgen action in bone, to the basic biology of estrogen and bone. On the clinical side the authors present the latest thinking about the use of bone densitometry in treatment, the use of vitamin D and its metabolites, and the clinical utilization of salmon calcitonin, as well as parathyroid and bisphosphonate therapies, SERMs, and other important treatments.
Author : Moises Levy,Henry Bass,Richard Stern
Publisher : Academic Press
Page : 2513 pages
File Size : 54,7 Mb
Release : 2000-10-23
Category : Technology & Engineering
ISBN : 9780080924250
Sound waves propagate through galactic space, through two-dimensional solids, through biological systems, through normal and dense stars, and through everything that surrounds us; the earth, the sea, and the air. We use sound to locate objects, to identify objects, to understand processes going on in nature, to communicate, and to entertain. The elastic properties of materials determine the velocity of sound in them and tell us about their response to stresses something which is very important when we are trying to construct, manufacture, or create something with any material. The Handbook of Elastic Properties of Materials will provide these characteristics for almost everything whose elastic properties has ever been measured or deduced in a concise and approachable manner. Leading experts will explain the significance of the elastic properties as they relate to intrinsic microscopic behavior, to manufacturing, to construction, or to diagnosis. They will discuss the propagation of sound in newly discovered or created materials, and in common materials which are being investigated with a fresh outlook. The Handbook will provide the reader with the elastic properties of the common and mundane, the novel and unique, the immense and the microscopic, and the exhorbitantly dense and the ephemeral.. You will also find the measurement. And theoretical techniques that have been developed and invented in order to extract these properties from a reluctant nature and recalcitrant systems. Key Features * Solids, liquids and gases covered in one handbook * Articles by experts describing insights developed over long and Illustrious careers * Properties of esoteric substances, such as normal and dense stars, superfluid helium three, fullerness, two dimensional solids, extraterrestial substances, gems and planetary atmospheres * Properties of common materials such as food, wood used for musical instruments, paper, cement, and cork * Modern dynamic elastic properties measurement techniques
Author : Hugh Frederick Bennett
Publisher : Unknown
Page : 68 pages
File Size : 52,5 Mb
Release : 1972
Category : Anisotropy
ISBN : UCR:31210025591841
Detailed ultrasonic velocity measurements were made on snow and ice cores from Greenland and Antarctica in order to study velocity anisotropy and its relationship to the petrofabric analysis of these cores. In addition, ultrasonic velocities were measured in the near-surface snow layers at Byrd Station and South Pole Station, Antarctica, to provide a detailed velocity profile in the region of the ice sheet where the velocity is greatly influenced by the snow structure. The experimental arrangement, including the design of equipment, measurement errors, techniques, and problems encountered in the study, is discussed. The theory of wave propagation in a general anisotropic medium is reviewed and a detailed presentation of this theory, concerning transversely isotropic media, is given. A method is developed for calculating a theoretical velocity model from the petrofabric analysis of the ice cores, thus providing a means of testing the theory with field and laboratory observations. (Author).
Author : Anonim
Publisher : Unknown
Page : 248 pages
File Size : 52,7 Mb
Release : 1968
Category : Weights and measures
ISBN : STANFORD:36105130367555
Author : A. R. Ritsema
Publisher : Elsevier
Page : 657 pages
File Size : 52,8 Mb
Release : 2013-10-22
Category : Science
ISBN : 9781483257266
Developments in Geotectonics, 4: The Upper Mantle focuses on the upper mantle and its influence on the development of the earth's crust, including history of the moon and other planets and volcanology. The selection first offers information on the origin of the earth, including ideas on the formation process of the terrestrial planets, condensation of dust particles, nature of the earth's core, thermal history of the earth, and fractionation of iron in the terrestrial planets. The text then ponders on the beginning of continental evolution, as well as the oldest rocks of the earth's crust, thermal history of the moon, and early history of the other planets. The text elaborates on magmatic activity as the major process in the chemical evolution of the earth's crust and mantle; trends in the evolution of continents; progress and problems in volcanology; and pressure and temperature conditions and tectonic significance of regional and ocean-floor metamorphism. The manuscript also takes a look at the state of mantle minerals, melting temperatures in the earth's mantle, and geomagnetic induction studies and the electrical state of the upper mantle. The publication is a dependable reference for readers interested in the study of the upper mantle.