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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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It’s Always Sunny in Philadelphia: The 7 Secrets of Awakening the Highly Effective Four-Hour Giant, Today

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It's Always Sunny in Philadelphia: The 7 Secrets of Awakening the Highly Effective Four-Hour Giant, Today by The Gang
English | 2015 | ISBN: 0062225111, 1783298391 | 256 pages | EPUB | 1,3 MB

It’s Always Sunny in Philadelphia: The 7 Secrets of Awakening the Highly Effective Four-Hour Giant, Today
“The Gang” from It’s Always Sunny in Philadelphia attempts their most ill-conceived, get-rich quick scheme yet: publishing a “self-help book” to hilarious, sometimes dangerous, and often revolting, results.

The Gang may have finally found their golden ticket. Left alone to close down Paddy’s Pub one night, Charlie Kelly inadvertently scored himself, and his friends, the opportunity of a lifetime—a book deal with a real publishing company, real advance money, and a real(ly confused) editor. While his actual ability to read and write remains unclear, Charlie sealed the deal with some off-the-cuff commentary on bird law and the nuances of killing rats (and maybe with the help of some glue fumes in the basement with an unstable editor on a bender). While The Gang is stunned by the news, and the legally binding, irrevocable contract left on the bar, they are also ready to rise to the task and become millionaires—and of course, help Charlie actually write the book.

In their own inimitable voices, Charlie, Mac, Dennis, Sweet Dee, and Frank weigh in on important topics like Relationships, Financial Success and Career, Fashion and Personal Grooming, Health and Diet, and Survival Skills, providing insane advice, tips, tricks, and recipes (Rum Ham anyone?) as only they can.

Fans of It’s Always Sunny in Philadelphia rejoice and welcome the most influential work in the history of the written word (or at least since the script for The Nightman Cometh): The 7 Secrets of Awakening the Highly Effective Four-Hour Giant, Today.

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Blood and Violence in Early Modern France

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Stuart Carroll "Blood and Violence in Early Modern France"
Oxford University Press | 2006-07-03 | ISBN: 0199290458 | 384 pages | PDF | 5 MB

Blood and Violence in Early Modern France
The rise of civilized conduct and behaviour has long been seen as one of the major factors in the transformation from medieval to modern society. Thinkers and historians alike argue that violence progressively declined as men learned to control their emotions. The feud is a phenomenon associated with backward societies, and in the West duelling codified behaviour and channelled aggression into ritualised combats that satisfied honour without the shedding of blood. French manners and codes of civility laid the foundations of civilized Western values. But as this original work of archival research shows we continue to romanticize violence in the era of the swashbuckling swordsman. In France, thousands of men died in duels in which the rules of the game were regularly flouted. Many duels were in fact mini-battles and must be seen not as a replacement of the blood feud, but as a continuation of vengeance-taking in a much bloodier form. This book outlines the nature of feuding in France and its intensification in the wake of the Protestant Reformation, civil war and dynastic weakness, and considers the solutions proposed by thinkers from Montaigne to Hobbes. The creation of the largest standing army in Europe since the Romans was one such solution, but the militarization of society, a model adopted throughout Europe, reveals the darker side of the civilizing process.
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Classical Electromagnetism via Relativity

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W. G. V. Rosser, "Classical Electromagnetism via Relativity"
1968 | pages: 302 | ISBN: 0408433000, 1489962581 | DJVU | 2,3 mb

Classical Electromagnetism via Relativity
One of the arts of teaching is to attack a problem from a different point of view, if the conventional approach has not been fully appreciated. This often helps the class to appreciate the conventional approach more fully. Maxwell's equations are generally introduced during a long course on electromagnetism, in which the correct interpretations and experimental bases of Maxwell's equations are sometimes obscured by the large amount of time of necessity devoted to the important applications of individual laws. The displacement 'current' is often introduced in a way that gives the wrong impression of its role in contemporary electromagnetic theory. There have been refinements of interpretation since Maxwell's time, particularly following the abandonment of the ether theories and the introduction of the theory of relativity. This is particularly true of the displacement 'current'. In this monograph, Maxwell's equations are approached from a different point of view from the conventional approach, namely using Coulomb's law and the transformations of the theory of special relativity. This approach illustrates the essential unity of Maxwell's equations, and the modern interpretation of the various terms in Maxwell's equations. It is the reverse of the historical approach, since the theory of special relativity arose out of optics and electromagnetism.
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How to Open Locks without Keys or Picks

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How to Open Locks without Keys or Picks
English | ISBN: 0873641922 | 1994 | 24 pages | EPUB | 1 MB

How to Open Locks without Keys or Picks
Many leading locksmiths feel that opening locked doors by means other than picking or key fitting is a necessary part of the locksmith's knowledge. Since no two jobs present the same problem to a master locksmith, it is a credit to his ability for him to be familiar with all the ways of doing his work.
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How to Open Locks without Keys or Picks

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How to Open Locks without Keys or Picks
English | ISBN: 0873641922 | 1994 | 24 pages | EPUB | 1 MB

How to Open Locks without Keys or Picks
Many leading locksmiths feel that opening locked doors by means other than picking or key fitting is a necessary part of the locksmith's knowledge. Since no two jobs present the same problem to a master locksmith, it is a credit to his ability for him to be familiar with all the ways of doing his work.
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Sabotage: America’s Enemies Within the CIA

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Sabotage: America's Enemies Within the CIA By Rowan Scarborough
2007 | 229 Pages | ISBN: 1596985100 | PDF | 3 MB

Sabotage: America’s Enemies Within the CIA
How Bush-hating CIA Bureaucrats Are Sabotaging the War on Terror Since the attacks on September 11, 2001, intelligence collection has become the number-one weapon in the effort to defeat al Qaeda and Osama bin Laden. A Description penetrated is an attack stopped. And to the outside observer, the CIA has performed well as a key partner in the Bush administration's War on Terror. But as Rowan Scarborough reveals in this groundbreaking new book, significant elements within the CIA are undermining both the president and national security through leaks, false allegations, and outright sabotage. Using his first-rate sources in all levels of national security–from field officers to high-ranking analysts to former intelligence heads–Scarborough paints a disturbing picture of partisan politics endangering the success of our campaigns abroad and the very lives of our soldiers and agents. In Sabotage, you'll learn: * How CIA analysts repeatedly leak details about classified intelligence programs with the dual intent of ending them and damaging the president * How, on at least eight occasions, intelligence officials have made serious allegations of wrongdoing against the president's men–which turned out to be false * Why, contrary to popular belief, the CIA has become predominantly liberal * How a CIA turf battle prevented special operators from pursuing and capturing a notorious Taliban leader * How current and former CIA officers fueled conspiracy theories that President Bush orchestrated the 9/11 attacks on America * How a CIA leak to the New York Times deprived the U.S. of critical information in the War on Terror * How press leaks by the CIA have damaged relations with our foreign allies in the War on Terror * How a CIA analyst worked with Democrats to sabotage the nomination of John Bolton to the UN * How Clinton's downsizing of the CIA led to the closing of stations in scores of jihadist breeding grounds–including Hamburg, Germany, where the 9/11 Description was hatched The CIA's job is to collect facts and let the White House, the Pentagon, and the State Department make national security policy. But, as Scarborough conclusively demonstrates, an agency that is supposed to be scrupulously nonpartisan has become increasingly political–during a time of war–against America's elected commander in chief.
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Modern Methods of Valuation, 11th edition

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Modern Methods of Valuation, 11th edition by Eric Shapiro, David Mackmin, Gary Sams
English | 2012-12-16 | ISBN: 0415538017, 0080971164 | PDF | 552 pages | 4 MB

Modern Methods of Valuation, 11th edition
The new and improved eleventh edition of this essential valuation textbook reflects the changes in the property market since 2009, whilst presenting the tried and tested study of the principles governing the valuation of land, houses and buildings of the previous editions.

The eleventh edition is fully up-to-date with latest guidelines, statutes and case law, including the implications of the latest RICS Red Book and the Localism Act. Its comprehensive coverage of the legal, economic and technical aspects of valuation make this book a core text for most University and College Real Estate Programmes and to provide trainees (APC Candidates) and practitioners with current and relevant guidance on the preparation of valuations for statutory purposes.

Over the twenty eight chapters, the author team of experienced valuation experts present detailed accounts of the application of these principles to the everyday problems met in practice. This new edition continues to be of excellent value to both students and practitioners alike as it provides the reader with a clear understanding of the methods and techniques of valuation.
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