Tag Archives: Signal

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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“Acoustic Waves: From Microdevices to Helioseismology” ed. by Marco G. Beghi

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"Acoustic Waves: From Microdevices to Helioseismology" ed. by Marco G. Beghi
InTeOpP | 2011 | ISBN: 9533075724 9789533075723 | 665 pages | PDF | 51 MB
This book presents several aspects of the active research ongoing in the field of Acoustic Waves. Theoretical efforts are leading to a deeper understanding of phenomena, also in complicated environments like the solar surface boundary. A whole class of widespread microdevices, including filters and sensors, is based on the behaviour of acoustic waves propagating in thin layers. The search for better performances is driving to new materials for these devices, and to more refined tools for their analysis.

“Acoustic Waves: From Microdevices to Helioseismology” ed. by Marco G. Beghi
Contents
Part 1 Theoretical and Numerical Investigations of Acoustic Waves
1 Analysis of Acoustic Wave in Homogeneous and Inhomogeneous Media Using Finite Element Method
2 Topological Singularities in Acoustic Fields due to Absorption of a Crystal
3 An Operational Approach to the Acoustic Analogy Equations
4 Exact Solutions Expressible in Hyperbolic and Jacobi Elliptic Functions of Some Important Equations of Ion-Acoustic Waves
5 A coustic Wave
Part 2 Acoustic Waves as Investigative Tools
6 Acoustic Waves: A Probe for the Elastic Properties of Films
7 Evaluation Method for Anisotropic Drilling Characteristics of the Formation by Using Acoustic Wave Information
8 Machinery Faults Detection Using Acoustic Emission Signal
9 Compensation of Ultrasound Attenuation in Photoacoustic Imaging
10 Low Frequency Acoustic Devices for Viscoelastic Complex Media Characterization
11 Modeling of Biological Interfacial Processes Using Thickness-Shear Mode Sensors
12 Analysis of Biological Acoustic Waves by Means of the Phase-Sensitivity Technique
13 Photoacoustic Technique Applied to Skin Research: Characterization of Tissue, Topically Applied Products and Transdermal Drug Delivery
14 Acoustic-Gravity Waves in the Ionosphere During Solar Eclipse Events
Part 3 Acoustic Waves as Manipulative Tools
15 Use of Acoustic Waves for Pulsating Water Jet Generation
16 Molecular Desorption by Laser-Driven Acoustic Waves: Analytical Applications and Physical Mechanisms
17 Excitation of Periodical Shock Waves in Solid-State Optical Media (Yb:YAG, Glass) at SBS of Focused Low-Coherent Pump Radiation: Structure Changes, Features of Lasing
18 An Optimal Distribution of Actuatorsin Active Beam Vibration: Some Aspects, Theoretical Considerations
Part 4 Acoustic Wave Based Microdevices
19 Multilayered Structure as a Novel Material for Surface Acoustic Wave Devices: Physical Insight
20 SAW Parameters Analysis and Equivalent Circuit of SAW Device
21 Sources of Third-Order Intermodulation Distortion in Bulk Acoustic Wave Devices: A Phenomenological Approach
22 Shear Mode Piezoelectric Thin Film Resonators
23 Polymer Coated Rayleigh SAW and STW Resonators for Gas Sensor Applications
24 Ultrananocrystalline Diamond as Material for Surface Acoustic Wave Devices
25 Aluminum Nitride (AIN) Film Based Acoustic Devices: Material Synthesis and Device Fabrication
26 Surface Acoustic Wave Devices for Harsh Environment
27 Applications of In-Fiber Acousto-Optic Devices
28 Surface Acoustic Waves and Nano-Electromechanical Systems
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Particle and Nuclear Physics at J-PARC

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Particle and Nuclear Physics at J-PARC
English | Physics | 27. August 2009 | ISBN-10: 3642009603 | 266 pages | pdf | 8 mb
An accelerator complex which gives extremely high-intensity proton beams is being constructed in Tokai, Japan.

Particle and Nuclear Physics at J-PARC
The project is operated by JAEA (Japan Atomic Energy Agency) and KEK (High Energy Accelerator Research Or- nization) and called J-PARC (Japan Proton Accelerator Research Complex). J-PARC accelerator complex consists of 200MeV linac, 3GeV rapid cycling synchrotron, and 30GeV main synchrotron. The energy of linac will be – tendedto400MeVandtheenergyofthemainringwillbeincreasedto50GeV in the near future. J-PARC aims to perform various researches of life and material sciences by using neutron beams from the 3GeV rapid cycling synchrotron. J-PARC also aims to perform various particle and nuclear physics experiments by using the 50GeV main synchrotron. In this book we collected several proposals of particle and nuclear physics experiments to be performed by using 50GeV main synchrotron. Prof. Nagamiya gives a brief introduction of J-PARC. He describes the purpose of the project, the aims of the various facilities, and the researches to be done by using these facilities. Prof. Ichikawa discusses about the long baseline nutrino oscillation expe- ment. This proposal is called T2K (Tokai to Kamioka) and it aims to measure mixinganglesintheleptonsector.Theytrytoperformaprecisemeasurement of ? by measuring the ? disappearance. Then they go to determine ? by 23 ? 13 measuring ? -? appearance signal. They also search for sterile components ? e by measuring NC events. Prof. Lim discusses about the experiment which searches a very rare decay 0 0 oftheneutralkaon:K ? ? ?? ¯.ThisdecayoccursviaadirectCPviolation. L Hewillsearchthisdecaymodewithhighersensitivitythanthestandardmodel expectation level.
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Flexible AC Transmission Systems: Modelling and Control

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Flexible AC Transmission Systems: Modelling and Control (Power Systems) by Xiao-Ping Zhang and Christian Rehtanz
English | ISBN: 3642282407 | 2012 | 580 pages | PDF | 8,4 MB

Flexible AC Transmission Systems: Modelling and Control
The extended and revised second edition of this successful monograph presents advanced modeling, analysis and control techniques of Flexible AC Transmission Systems (FACTS). The book covers comprehensively a range of power-system control problems: from steady-state voltage and power flow control, to voltage and reactive power control, to voltage stability control, to small signal stability control using FACTS controllers. In the six years since the first edition of the book has been published research on the FACTS has continued to flourish while renewable energy has developed into a mature and booming global green business. The second edition reflects the new developments in converter configuration, smart grid technologies, super power grid developments worldwide, new approaches for FACTS control design, new controllers for distribution system control, and power electronic controllers in wind generation operation and control. The latest trends of VSC-HVDC with multilevel architecture have been included and four completely new chapters have been added devoted to Multi-Agent Systems for Coordinated Control of FACTS-devices, Power System Stability Control using FACTS with Multiple Operating Points, Control of a Looping Device in a Distribution System, and Power Electronic Control for Wind Generation.
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Flexible AC Transmission Systems: Modelling and Control

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Flexible AC Transmission Systems: Modelling and Control (Power Systems) by Xiao-Ping Zhang and Christian Rehtanz
English | ISBN: 3642282407 | 2012 | 580 pages | PDF | 8,4 MB

Flexible AC Transmission Systems: Modelling and Control
The extended and revised second edition of this successful monograph presents advanced modeling, analysis and control techniques of Flexible AC Transmission Systems (FACTS). The book covers comprehensively a range of power-system control problems: from steady-state voltage and power flow control, to voltage and reactive power control, to voltage stability control, to small signal stability control using FACTS controllers. In the six years since the first edition of the book has been published research on the FACTS has continued to flourish while renewable energy has developed into a mature and booming global green business. The second edition reflects the new developments in converter configuration, smart grid technologies, super power grid developments worldwide, new approaches for FACTS control design, new controllers for distribution system control, and power electronic controllers in wind generation operation and control. The latest trends of VSC-HVDC with multilevel architecture have been included and four completely new chapters have been added devoted to Multi-Agent Systems for Coordinated Control of FACTS-devices, Power System Stability Control using FACTS with Multiple Operating Points, Control of a Looping Device in a Distribution System, and Power Electronic Control for Wind Generation.
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“Advances in Electrocardiograms: Methods and Analysis” ed. by Richard M. Millis

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"Advances in Electrocardiograms: Methods and Analysis" ed. by Richard M. Millis
InTeOpP | 2012 | ISBN: 9533079231 9789533079233 | 401 pages | PDF | 20 MB
This volume lays the groundwork for understanding the technical aspects of these advancements. This volume is complemented with anatomical diagrams, electrocardiogram recordings, flow diagrams and algorithms which demonstrate the most modern principles of electrocardiography. The five sections of this volume, Cardiac Anatomy, ECG Technique, ECG Features, Heart Rate Variability and ECG Data Management, provide comprehensive reviews of advancements in the technical and analytical methods for interpreting and evaluating electrocardiograms.

“Advances in Electrocardiograms: Methods and Analysis” ed. by Richard M. Millis
The chapters which form this volume describe how the technical impediments inherent to instrument-patient interfacing, recording and interpreting variations in electrocardiogram time intervals and morphologies, as well as electrocardiogram data sharing have been effectively overcome. The advent of novel detection, filtering and testing devices are described. Foremost, among these devices are innovative algorithms for automating the evaluation of electrocardiograms.

Contents
Part 1 Cardiac Structure and Function
1 Cardiac Anatomy
Part 2 ECG Technique
2 Low-Frequency Response and the Skin-Electrode Interface in Dry-Electrode Electrocardiography
3 Implantation Techniques of Leads for Left Ventricular Pacing in Cardiac Resynchronization Therapy and Electrocardiographic Consequences of the Stimulation Site
4 Non Contact Heart Monitoring
5 Automated Selection of Optimal ECG Lead Using Heart Instantaneous Frequency During Sleep
Part 3 ECG Feature Analysis
6 A Novel Technique for ECG Morphology Interpretation and Arrhythmia Detection Based on Time Series Signal Extracted from Scanned ECG Record
7 QT Interval and QT Variability
8 The Electrocardiogram – Waves and Intervals
9 Quantification of Ventricular Repolarization Dispersion Using Digital Processing of the Surface ECG
10 Medicines and QT Prolongation
11 Concealed Conduction
12 Recognition of Cardiac Arrhythmia by Means of Beat Clustering on ECG-Holter Recordings
Part 4 Heart Rate Variability
13 Electrocardiographic Analysis of Heart Rate Variability in Aging Heart
14 Changes of Sympathovagal Balance Measured by Heart Rate Variability in Gastroparetic Patients Treated with Gastric Electrical Stimulation
15 Associations of Metabolic Variables with Electrocardiographic Measures of Sympathovagal Balance in Healthy Young Adults
Part 5 ECG Signal Processing
16 An Analogue Front-End System with a Low-Power On-Chip Filter and ADC for Portable ECG Detection Devices
17 Electrocardiogram in an MRI Environment: Clinical Needs. Practical Considerations. Safety Implications. Technical Solutions and Future Directions
18 Customized Heart Check System by Using Integrated Information of Electrocardiogram and Plethysmogram Outside the Driver's Awareness from an Automobile Steering Wheel
19 Independent Component Analysis in ECG Signal Processing
Part 6 ECG Data Management
20 Broadening the Exchange of Electrocardiogram Data from Intra-Hospital to Inter-Hospital
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Body & Soul: Notebooks of an Apprentice Boxer by Loc Wacquant

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Body & Soul: Notebooks of an Apprentice Boxer by Loïc Wacquant
English | Dec 11, 2003 | ISBN: 0195168356 | 288 Pages | PDF | 15,7 MB

Body & Soul: Notebooks of an Apprentice Boxer by Loc Wacquant
When French sociologist Loïc Wacquant signed up at a boxing gym in a black neighborhood of Chicago's South Side, he had never contemplated getting close to a ring, let alone climbing into it. Yet for three years he immersed himself among local fighters, amateur and professional. He learned the Sweet science of bruising, participating in all phases of the pugilist's strenuous preparation, from shadow-boxing drills to sparring to fighting in the Golden Gloves tournament. In this experimental ethnography of incandescent intensity, the scholar-turned-boxer fleshes out Pierre Bourdieu's signal concept of habitus, deepening our theoretical grasp of human practice. And he supplies a model for a "carnal sociology" capable of capturing "the taste and ache of action."

Body & Soul marries the analytic rigor of the sociologist with the stylistic grace of the novelist to offer a compelling portrait of a bodily craft and of life and labor in the black American ghetto at century's end.
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The Building Environment: Active and Passive Control Systems

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The Building Environment: Active and Passive Control Systems by Vaughn Bradshaw
English | 2006 | ISBN: 0471689653 | 589 Pages | PDF | 145 MB
Get the updated guide to active and passive control systems for buildings.

The Building Environment: Active and Passive Control Systems
To capitalize on today's rapidly evolving, specialized technologies, architects, designers, builders, and contractors work together to plan the mechanical and electrical equipment that controls the indoor environment of a building. , Third Edition helps you take advantage of design innovations and construction strategies that maximize the comfort, safety, and energy efficiency of buildings. From active HVAC systems to passive methods, lighting to on-site power generation, this updated edition explains how to strategically plan for and incorporate effective, efficient systems in today's buildings. It covers the underlying thermal theories and thermodynamic principles and focuses on design that enhances the building environment and minimizes the impact on the world's environment. The Building Environment goes beyond the ABCs of HVAC and covers: On-site power generation, including wind turbines, solar photovoltaic cells, fuel cells, and more. Plumbing systems, fire protection, signal systems, conveying systems, and architectural acoustics. Procedures and/or formulas for performing heat loss, heat gain, and energy use calculations, determining the rate of heat flow, calculating solar energy utilization, doing load calculations, and more. Details on the latest building codes and standards references. New information on the sustainable design of building systems and energy efficiency, including new technologies. The latest thinking and data on a building's impact on the environment, indoor air quality, and "sick building syndrome." Design economics, including the payback period, life-cycle cost, comparative value analysis, and building commissioning. A practical on-the-job tool for architects, designers, builders, engineers, contractors, and other specialists, this Third Edition is also a great reference for architecture students who will lead tomorrow's design teams. Visit the companion Web site at www.wiley.com/go/bradshaw.
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Molecular Targets of CNS Tumors by Miklos Garami

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Molecular Targets of CNS Tumors by Miklos Garami
English | August, 2011 | ISBN 13: 9789533077369 | 686 Pages | PDF | 49 MB
Molecular Targets of CNS Tumors is a selected review of Central Nervous System (CNS) tumors with particular emphasis on signaling pathway of the most common CNS tumor types. To develop drugs which specifically attack the cancer cells requires an understanding of the distinct characteristics of those cells. Additional detailed information is provided on selected signal pathways in CNS tumors.

Molecular Targets of CNS Tumors by Miklos Garami
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Sparse Representations and Compressive Sensing for Imaging and Vision

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Sparse Representations and Compressive Sensing for Imaging and Vision by Vishal M. Patel and Rama Chellappa
English | 2013-02-08 | ISBN: 1461463807 | PDF | 112 pages | 4 MB

Sparse Representations and Compressive Sensing for Imaging and Vision
Compressed sensing or compressive sensing is a new concept in signal processing where one measures a small number of non-adaptive linear combinations of the signal. These measurements are usually much smaller than the number of samples that define the signal. From these small numbers of measurements, the signal is then reconstructed by non-linear procedure. Compressed sensing has recently emerged as a powerful tool for efficiently processing data in non-traditional ways. In this book, we highlight some of the key mathematical insights underlying sparse representation and compressed sensing and illustrate the role of these theories in classical vision, imaging and biometrics problems.
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