High Density Digital Recording

High Density Digital Recording PDF Author: K.H.J Buschow
Publisher: Springer Science & Business Media
ISBN: 9401116369
Category : Science
Languages : en
Pages : 600

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Book Description
High density digital magnetic and magneto-optical storage devices are widely used in audio, video, and data processing information technology, as well as in CAD/CAM computer systems. These widespread uses generate a continually increasing demand for both increased information storage densities and capacities, and for reduced access times. Hence, the materials engineering of high density storage media, with a high signal to noise ratio, and the associated design of sophisticated read and write heads, form the basis of major technological research. This research is especially complex because, ideally, the recorded information should be both erasable and, at the same time, secure and accessible over periods of many decades. As a result, research on these complex problems requires a multidisciplinary approach which utilizes the expertise in such widely differing fields as organic, inorganic, and solid state chemistry, metallurgy, solid state physics, electrical and mechanical engineering, and systems analysis. Often, further research specialization is necessary in each of these different disciplines. For instance, solid state physics and chemistry address the problems of crystallographic structure and phase diagram determination, magnetism, and optics, but more advanced research methods, such as high resolution electron microscopy and electronic band structure calculations, are necessary to understand the microstructure of particulate recording media or the electronic spectra of magneto-optical recording media.

High Density Digital Recording

High Density Digital Recording PDF Author: K.H.J Buschow
Publisher: Springer Science & Business Media
ISBN: 9401116369
Category : Science
Languages : en
Pages : 600

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Book Description
High density digital magnetic and magneto-optical storage devices are widely used in audio, video, and data processing information technology, as well as in CAD/CAM computer systems. These widespread uses generate a continually increasing demand for both increased information storage densities and capacities, and for reduced access times. Hence, the materials engineering of high density storage media, with a high signal to noise ratio, and the associated design of sophisticated read and write heads, form the basis of major technological research. This research is especially complex because, ideally, the recorded information should be both erasable and, at the same time, secure and accessible over periods of many decades. As a result, research on these complex problems requires a multidisciplinary approach which utilizes the expertise in such widely differing fields as organic, inorganic, and solid state chemistry, metallurgy, solid state physics, electrical and mechanical engineering, and systems analysis. Often, further research specialization is necessary in each of these different disciplines. For instance, solid state physics and chemistry address the problems of crystallographic structure and phase diagram determination, magnetism, and optics, but more advanced research methods, such as high resolution electron microscopy and electronic band structure calculations, are necessary to understand the microstructure of particulate recording media or the electronic spectra of magneto-optical recording media.

High Density Magnetic Recording for Home VTR

High Density Magnetic Recording for Home VTR PDF Author: K. A. Ozawa
Publisher: CRC Press
ISBN: 9782881248870
Category : Science
Languages : en
Pages : 160

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Book Description


High-density Digital Recording

High-density Digital Recording PDF Author:
Publisher:
ISBN:
Category : Error-correcting codes (Information theory)
Languages : en
Pages : 324

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Book Description


Magnetic Recording Handbook

Magnetic Recording Handbook PDF Author: Camras
Publisher: Springer Science & Business Media
ISBN: 9401094683
Category : Music
Languages : en
Pages : 723

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Book Description
When I started in magnetic recording nearly fifty years ago, it was easy to perceive the common sense of it. There was very little mathematics and every new finding was a source of wonder. I have tried to recapture this spirit with simple explanations, while maintaining a high density of infonnation and cov ering the entire field. This book introduces a novice to magnetic recording and its many branches. It includes reference data for designers and users. Each chapter stands by itself; no prerequisites are essential. For a quick survey, the equations and worked out examples can be disregarded. The magnetic recording art is changing so rapidly that new advances are announced almost every month. These are properly covered by journal articles and manufacturers' catalogs. This book will fulfil its purpose if it gives a back ground for easily comprehending the new advances. I have included subjects and devices not found elsewhere, and some unconventional viewpoints. I would welcome comments from readers. To Jay McKnight I am deeply grateful for important suggestions and helpful comments. I appreciate also the help of BASF, John Boyers, Joseph Dundovic, Charles Ginsburg, Peter Hammar, Yasuo Imaoka, Hal Kaitchuk, Otto Kornei, Harold Miller, Jack Mullin, Jim Novak, Lenard Perlman, Carl Powell, Sidney Rubens, John Shennan, Shigeo Shima, Heinz Thiele, Yoshimi Watanabe and many others; and to my daughter Ruth for typing.

Frontiers in Magnetism of Reduced Dimension Systems

Frontiers in Magnetism of Reduced Dimension Systems PDF Author: Victor G. Bar'yakhtar
Publisher: Springer Science & Business Media
ISBN: 9401150044
Category : Science
Languages : en
Pages : 597

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Book Description
Frontiers in Magnetism of Reduced Dimension Systems presents a definitive statement of our current knowledge and the state of the art in a field that has yet to achieve maturity, even though there are a number of potential applications of thin magnetic films and multilayers, such as magnetic sensors, data storage/retrieval media, actuators, etc. The book is organized into 13 chapters, each including a lecture and contributed papers on a similar subject. Five chapters deal with theoretical descriptions of electron transport phenomena, relaxation processes, nonlinear paramagnetic interactions, phase transitions and macroscopic quantum effects in magnetic films and particles. The description of different characterization techniques occupies an important place in the book. Separate chapters are dedicated to magnetic resonances (FMR, SWR, NMR), magneto-optical spectroscopy, controlling chaos, magnetoelastic phenomena and magnetic resonance force microscopy. A further chapter gives a detailed review, spread over a number of papers, of materials in current use in information storage devices.

Handbook of Magnetic Materials

Handbook of Magnetic Materials PDF Author: K.H.J. Buschow
Publisher: Elsevier
ISBN: 0444563776
Category : Science
Languages : en
Pages : 375

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Book Description
Volume 20 of the Handbook of Magnetic Materials, as the preceding volumes, has a dual purpose. As a textbook it is intended to help those who wish to be introduced to a given topic in the field of magnetism without the need to read the vast amount of literature published. As a work of reference it is intended for scientists active in magnetism research. To this dual purpose, Volume 20 is composed of topical review articles written by leading authorities. In each of these articles an extensive description is given in graphical as well as in tabular form, much emphasis being placed on the discussion of the experimental material in the framework of physics, chemistry and material science. It provides readers with novel trends and achievements in magnetism. - Composed of topical review articles written by leading authorities - Intended to be of assistance to those who wish to be introduced to a given topic in the field of magnetism - As a work of reference it is intended for scientists active in magnetism research - Provide the readership with novel trends and achievements in magnetism

Magnetic Recording

Magnetic Recording PDF Author: Eric D. Daniel
Publisher: John Wiley & Sons
ISBN: 9780780347090
Category : Technology & Engineering
Languages : en
Pages : 364

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Book Description
"The first magnetic recording device was demonstrated and patentedby the Danish inventor Valdemar Poulsen in 1898. Poulsen made amagnetic recording of his voice on a length of piano wire. MAGNETICRECORDING traces the development of the watershed products and thetechnical breakthroughs in magnetic recording that took placeduring the century from Paulsen's experiment to today's ubiquitousaudio, video, and data recording technologies including taperecorders, video cassette recorders, and computer harddrives. An international author team brings a unique perspective, drawnfrom professional experience, to the history of magnetic recordingapplications. Their key insights shed light on how magneticrecording triumphed over all competing technologies andrevolutionized the music, radio, television and computerindustries. They also show how these developments offeropportunities for applications in the future. MAGNETIC RECORDING features 116 illustrations, including 92photographs of historic magnetic recording machines and theirinventors." Sponsored by: IEEE Magnetics Society

The Foundations of Magnetic Recording

The Foundations of Magnetic Recording PDF Author: John C. Mallinson
Publisher: Elsevier
ISBN: 0080506828
Category : Technology & Engineering
Languages : en
Pages : 234

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Book Description
This expanded and updated new edition provides a comprehensive overview of the science and technology of magnetic recording. In the six years since the publication of the first edition, the magnetic recording and storage industry has burgeoned with the introduction of a host of new ideas and technologies. His book contains a discussion of almost every technologically important aspect of recording. - Continas complete coverage of the current technology of magnetic recording and storage - Written in a non-mathematical but scientifically accurate style - Permits intelligent evaluations to be made of both the past evolution and the future trends in a wide variety of magnetic storage devices

Handbook of Modern Ferromagnetic Materials

Handbook of Modern Ferromagnetic Materials PDF Author: Alex Goldman
Publisher: Springer Science & Business Media
ISBN: 1461549175
Category : Technology & Engineering
Languages : en
Pages : 656

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Book Description
Below is a copy of Professor Takeshi Takei's original preface that he wrote for my first book, Modem Ferrite Teclmology. I was proud to receive this preface and include it here with pride and affection. We were saddened to learn of his death at 92 on March 12, 1992. Preface It is now some 50 years since ferrites debuted as an important new category of magnetic materials. They were prized for a range of properties that had no equivalents in existing metal magnetic materials, and it was not long before full-fledged research and development efforts were underway. Today, ferrites are employed in a truly wide range of applications, and the efforts of the many men and women working in the field are yielding many highly intriguing results. New, high-performance products are appearing one after another, and it would seem we have only scratched the surface of the hidden possibilities of these fascinating materials. Dr. Alex Goldman is well qualified to talk about the state of the art in ferrites. For many years Dr. Goldman has been heavily involved in the field as director of the research and development division of Spang & Co. and other enterprises. This book, Modem Ferrite Technology, based in part on his own experiences, presents a valuable overview of the field. It is testimony to his commitment and bountiful knowledge about one oftoday's most intriguing areas of technology.

Ferrite

Ferrite PDF Author: Gaurav Sharma
Publisher: Materials Research Forum LLC
ISBN: 1644901595
Category : Technology & Engineering
Languages : en
Pages : 378

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Book Description
Ferrites are highly interesting high-tech materials. The book covers their classification, structure, synthesis, properties and applications. Emphasis is placed on biomedical applications, degradation of organic pollutants, high frequency applications, photocatalytic applications for wastewater remediation, solar cell applications, removal of organic dyes and drugs from aquatic systems, and the synthesis of hexagonal ferrites. Keywords: Ferrite, Spinel Ferrite Nanoparticles, Biomedical Applications, Ferrite Based Heterojunction, Photocatalytic Degradation of Organic Pollutants, Nickel-Zinc Ferrites, Spinel Ferrite Based Nanomaterials, Water Remediation, Magnetic Nano Particles, Wastewater Treatment, Piezo-Phototronic Effect, Ferrite Based Solar Cells, Aurivillius Based Ceramics, Hexagonal Ferrites.