Tag Archives: discussed

Active Metals: Preparation*Characterization*Applications by Alois Frstner

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Active Metals: Preparation*Characterization*Applications by Alois Fürstner
English | Nov 1995 | ISBN: 3527292071 | 480 Pages | PDF | 35 MB
Reactions with metals are ubiquitous in organic synthesis and, particularly in the last few years, a large repertoire of methods for the activation of metals and for their use in organic synthesis has been developed.

Active Metals: Preparation*Characterization*Applications by Alois Frstner
In Active Metals, topics ranging from morphology of metal clusters and nanometallurgy to organometallic chemistry, catalysis and the use of activated metals in natural product synthesis are authoritatively discussed by leading experts in the field.

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Study and Design of Differential Microphone Arrays

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Jacob Benesty, Jingdong Chen, "Study and Design of Differential Microphone Arrays"
English | 2013 | ISBN-10: 364233752X, 3642427561 | 180 pages | PDF | 6 MB

Study and Design of Differential Microphone Arrays
Microphone arrays have attracted a lot of interest over the last few decades since they have the potential to solve many important problems such as noise reduction/speech enhancement, source separation, dereverberation, spatial sound recording, and source localization/tracking, to name a few. However, the design and implementation of microphone arrays with beamforming algorithms is not a trivial task when it comes to processing broadband signals such as speech. Indeed, in most sensor arrangements, the beamformer output tends to have a frequency-dependent response. One exception, perhaps, is the family of differential microphone arrays (DMAs) who have the promise to form frequency-independent responses. Moreover, they have the potential to attain high directional gains with small and compact apertures. As a result, this type of microphone arrays has drawn much research and development attention recently. This book is intended to provide a systematic study of DMAs from a signal processing perspective. The primary objective is to develop a rigorous but yet simple theory

for the design, implementation, and performance analysis of DMAs. The theory includes some signal processing techniques for the design of commonly used first-order, second-order, third-order, and also the general Nth-order DMAs. For each order, particular examples are given on how to form standard directional patterns such as the dipole, cardioid, supercardioid, hypercardioid, subcardioid, and quadrupole. The study demonstrates the performance of the different order DMAs in terms of beampattern, directivity factor, white noise gain, and gain for point sources. The inherent relationship between differential processing and adaptive beamforming is discussed, which provides a better understanding of DMAs and why they can achieve high directional gain. Finally, we show how to design DMAs that can be robust against white noise amplification.
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Practical Hadoop Security

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Practical Hadoop Security by Bhushan Lakhe
2014 | ISBN: 1430265442 | English | 260 pages | PDF | 5 MB

Practical Hadoop Security
is an excellent resource for administrators planning a production Hadoop deployment who want to secure their Hadoop clusters. A detailed guide to the security options and configuration within Hadoop itself, author Bhushan Lakhe takes you through a comprehensive study of how to implement defined security within a Hadoop cluster in a hands-on way.

You will start with a detailed overview of all the security options available for Hadoop, including popular extensions like Kerberos and OpenSSH, and then delve into a hands-on implementation of user security (with illustrated code samples) with both in-the-box features and with security extensions implemented by leading vendors.

No security system is complete without a monitoring and tracing facility, so next steps you through audit logging and monitoring technologies for Hadoop, as well as ready to use implementation and configuration examples–again with illustrated code samples.

The book concludes with the most important aspect of Hadoop security – encryption. Both types of encryptions, for data in transit and data at rest, are discussed at length with leading open source projects that integrate directly with Hadoop at no licensing cost.

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Explains importance of security, auditing and encryption within a Hadoop installation
Describes how the leading players have incorporated these features within their Hadoop distributions and provided extensions
Demonstrates how to set up and use these features to your benefit and make your Hadoop installation secure without impacting performance or ease of use

What you'll learn

Understand your options for implementing Hadoop user security
Learn how to configure and set up security for your Hadoop cluster
Set up Hadoop audit logs, Hadoop metrics, monitoring technologies and related products
Configure and set up logging, metrics and monitoring for your Hadoop cluster
Discover and implement encryption for data in transit and data at rest
and much more.

Who this book is for

is an excellent resource for Hadoop administrators who want to secure their environment. IT management planning a production Hadoop environment will also find this text useful. This book is also for students who wish to learn about Hadoop security.
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Glycopolymers: Synthesis and Applications

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Ravin Narain, "Glycopolymers: Synthesis and Applications"
2014 | ISBN-10: 1909030813 | 180 pages | PDF | 6 MB

Glycopolymers: Synthesis and Applications
Glycopolymers have received considerable interest in recent years due to their increasing potential applications in material science and biomedicine. With better understanding of the role of carbohydrates in biological systems and with recent advances in organic and carbohydrate chemistry, the design and synthesis of glycopolymers have become simpler where significant research efforts have been carried out towards the fabrication of advanced glyco-polymeric architectures for improved performance. This book provides an update on the recent advances on the synthesis of glycopolymers, their characterisations, their biological properties and their applications. The first objective of this book is to provide the readers a detailed overview about the synthesis of glycopolymers via several modern polymerisation techniques. The characterisation of these materials and their solution properties are also discussed. In addition to this, the conjugation of glycopolymers to different types of biomacromolecules are discussed. The second objective of this book is to provide the readers a detailed overview of the applications glycopolymers. In addition, the biological properties of the glycopolymers as a function of the types of carbohydrates attached, the polymer architectures and compositions are elaborated. This update will provide a quick reference to students and researchers working in both academia and industry.
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Rare-Earth Implanted MOS Devices for Silicon Photonics: Microstructural, Electrical and Optoelectronic Properties

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Rare-Earth Implanted MOS Devices for Silicon Photonics: Microstructural, Electrical and Optoelectronic Properties by Lars Rebohle and Wolfgang Skorupa
English | 2010-10-21 | ISBN: 3642144462 | PDF | 220 pages | 3 MB

Rare-Earth Implanted MOS Devices for Silicon Photonics: Microstructural, Electrical and Optoelectronic Properties
The book concentrates on the microstructural, electric and optoelectronic properties of rare-earth implanted MOS structures and their use as light emitters in potential applications. It describes the structural formation processes in the gate oxide during fabrication and under operation, how this microstructure development will affect the electrical device performance and how both microstructure and electrical characteristics determine the optoelectronic features of the light emitters. However, most of the discussed physical processes as well as the described fabrication methods and device characterization techniques are of general interest and are beyond the scope of this type of light emitter. The book will be of value to engineers, physicists, and scientists dealing either with Si based photonics in particular or optoelectronic device fabrication and characterization in general.
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Rare-Earth Implanted MOS Devices for Silicon Photonics: Microstructural, Electrical and Optoelectronic Properties

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Rare-Earth Implanted MOS Devices for Silicon Photonics: Microstructural, Electrical and Optoelectronic Properties by Lars Rebohle and Wolfgang Skorupa
English | 2010-10-21 | ISBN: 3642144462 | PDF | 220 pages | 3 MB

Rare-Earth Implanted MOS Devices for Silicon Photonics: Microstructural, Electrical and Optoelectronic Properties
The book concentrates on the microstructural, electric and optoelectronic properties of rare-earth implanted MOS structures and their use as light emitters in potential applications. It describes the structural formation processes in the gate oxide during fabrication and under operation, how this microstructure development will affect the electrical device performance and how both microstructure and electrical characteristics determine the optoelectronic features of the light emitters. However, most of the discussed physical processes as well as the described fabrication methods and device characterization techniques are of general interest and are beyond the scope of this type of light emitter. The book will be of value to engineers, physicists, and scientists dealing either with Si based photonics in particular or optoelectronic device fabrication and characterization in general.
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Non-Linear Instabilities in Plasmas and Hydrodynamics

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Non-Linear Instabilities in Plasmas and Hydrodynamics
English | Physics, Mathematics | November 1999 | ISBN-10: 0750304839 | 180 pages | Djvu | 1 mb
For the first time in a single book, Non-Linear Instabilities in Plasmas and Hydrodynamics presents the underlying physics of fast secondary instabilities.

Non-Linear Instabilities in Plasmas and Hydrodynamics
This exceptionally well-written, introductory book discusses the basic ideas of the physics of secondary or induced, nonlinear instabilities in wave-sustaining media. The authors, world-renowned experts in the field, have brought together the results of papers scattered throughout the literature to explain subjects as diverse as fluctuation chaos, wave-turbulent instabilities, vortex dynamos, beam-plasma interactions, plasma confinement, and the origins of typhoons in the Earth's atmosphere and magnetic fields in galaxies. Paving the way for new and exciting research in the future, this broad, interdisciplinary book enables a wide range of physicists to apply the concepts discussed to obtain new results in plasma physics, space physics, hydrodynamics, and geophysics.
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Virology: Principles and Applications, 2 edition

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Virology: Principles and Applications, 2 edition by John Carter and Venetia Saunders
English | 2013 | ISBN: 1119991420, 1119991439 | 512 pages | PDF + EPUB | 26,5 + 7,7 MB

Virology: Principles and Applications, 2 edition
The second edition of Virology is an accessible introduction designed to enable students to understand the principles of virus structure, replication and genetics. The aim of this book is to help the reader appreciate the relevance of virology in the modern world, including the fields of vaccines, anti-viral drugs and cancer. There is also a chapter on prions. The second edition has been extensively revised and updated to reflect the many developments in virology and offers deeper insights into the subject. Newly-discovered viruses are discussed and there is an additional chapter on the influenza virus.
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