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Books > Professional & Technical > Other technologies
This is a reproduction of a book published before 1923. This book may have occasional imperfectionssuch as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed worksworldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.++++The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to ensure edition identification: ++++ The Stannaries: A Study Of The English Tin Miner; Volume 3 Of Harvard Economic Studies; The Stannaries: A Study Of The English Tin Miner George Randall Lewis Houghton, Mifflin and company, 1908 Tin miners; Tin miners and mining; Tin mines and mining
Lofortovo prison, built by Catherine the Great, was reputed to have niches in the walls of an underground hallway where executioners with silenced pistols concealed themselves before emerging to shoot in the back of the head an enemy of the state being walked along the corridor. Persistent rumors told of beatings and tortures at Lofortovo, but I kept repeating to myself: This is the new Russia, not the old Soviet state. The men taking me in have been pleasant, even courteous. No threats. No raised voices. "Just a few questions and you'll be on your way again." Another eight-by-fifteen room. Three steel tablets meant as beds. One sink, one toilet, one small mirror embedded into the concrete, no bars, one opaque window. It was cold in the cell—not freezing, but 45 degrees Fahrenheit, kept at that temperature to make me miserable. I paced for a while. Nervous. Upset. Confused. Unable to sleep. Everything in the world went through my mind: I will get out of here, I won't get out of here, best-case scenario, worst-case scenario... I lay down on the mattress, under the blanket, and was so cold that I had to put on my sport coat to keep from shivering. It was dim but not dark, as there was a light on in my cell that never went out. Every few minutes the quality of light coming from outside the opaque glass would change, and I guessed that the guards were checking in on me, making sure I hadn't tried to commit suicide or send a message from the Flash Gordon transmitter concealed in my wedding ring.... He was an innocent man: Edmond Pope—former Naval Intelligence officer, then private businessman, in Russia looking for some answers. Little did he know that he was looking in some very dangerous places. There was the top-secret operation: Western military and intelligence agencies out to steal one of Russia's crown jewels—the plans to a submarine torpedo that traveled an astonishing 300 miles per hour. There was the new man in charge: Vladimir Putin—former head of the KGB, now boss of all Russia and a man who wanted to set an example at almost any cost. It would all come together, and the result would be an incredible story of duplicity, secrets, and lies. Now, for the first time ever, Edmond Pope tells the real story of what led to his becoming the first American since Francis Gary Powers to be convicted of espionage in Russia. Combining a gripping account of his arrest, trial, and 253-day imprisonment with a deeply disturbing look at today's Russia—where you can trust no one, and everything is for sale—his book reads like a John Le Carré novel come to life. And with a large dollop of espionage—insider information and secret submarine warfare technology, Pope's enthralling memoir will also remind readers of the best of Tom Clancy or Blind Man's Bluff. Torpedoed reveals that the new Russia isn't that different from the old, that a fresh Cold War is brewing, and that Americans in Russia are at risk. With vivid portraits of Russians devoted to framing an American and Americans devoted to justice—Pope's wife Cheri first and foremost among them— it moves from dank Moscow prison cells to the White House to the inner rooms of the Kremlin. And like the secret torpedo in question, Edmond Pope's harrowing story races to a conclusion of devastating impact.
This book presents recent research works related to blast resistant buildings, green roofs and sustainability, retrofit interventions with C-FRP fibers, analysis of cracking in pile cap foundation by delayed ettringite formation and acoustic performance in buildings. It demonstrates that building pathology is a holistic approach to studying and understanding buildings, and in particular, building defects or problems and associated rehabilitation actions. Offering a systematic review of the current state of knowledge, the book serves as a valuable resource for scientists, students, practitioners, and lecturers in various scientific and engineering disciplines, including civil and materials engineering, as well as and other interested parties.
"Distinguished African Americans in Aviation and Space Science" offers brief, readable entries that describe the lives and careers of 80 men and 20 women who defied poverty and prejudice to excel in the fields of aviation and space exploration. Each essay begins with birth and death dates, educational institutions attended and degrees earned, positions held, and awards won. A short summary of the individual's contribution to aviation or space science is followed by a biographical narrative divided into three sections: Early Years, Higher Education, and Career Highlights. Often based on the authors' correspondence with the subjects themselves, or with family members, this illustrated volume provides the fullest and most accessible biographical information available for many of these figures.
This book provides a comprehensive introduction to the theory and practice of spherical microphone arrays, and was written for graduate students, researchers and engineers who work with spherical microphone arrays in a wide range of applications. The new edition includes additions and modifications, and references supplementary Matlab code to provide the reader with a straightforward start for own implementations. The book is also accompanied by a Matlab manual, which explains how to implement the examples and simulations presented in the book. The first two chapters provide the reader with the necessary mathematical and physical background, including an introduction to the spherical Fourier transform and the formulation of plane-wave sound fields in the spherical harmonic domain. In turn, the third chapter covers the theory of spatial sampling, employed when selecting the positions of microphones to sample sound pressure functions in space. Subsequent chapters highlight various spherical array configurations, including the popular rigid-sphere-based configuration. Beamforming (spatial filtering) in the spherical harmonics domain, including axis-symmetric beamforming, and the performance measures of directivity index and white noise gain are introduced, and a range of optimal beamformers for spherical arrays, including those that achieve maximum directivity and maximum robustness are developed, along with the Dolph-Chebyshev beamformer. The final chapter discusses more advanced beamformers, such as MVDR (minimum variance distortionless response) and LCMV (linearly constrained minimum variance) types, which are tailored to the measured sound field. Mathworks kindly distributes the Matlab sources for this book on https://www.mathworks.com/matlabcentral/fileexchange/68655-fundamentals-of-spherical-array-processing.
This book analyzes the commercial space activities and commercialization processes of the last fifteen years and maps the future challenges that NewSpace companies will face developing commercial space markets. What is new and what has happened in these markets up till now? Is there a business case for private companies for commercial space? What are the targeted commercial space markets? Who are the future customers for commercial space transportation markets? How can NewSpace companies attract investors? Can we learn lessons from traditional space industries or other companies in other areas? In what way have the last fifteen years made a difference in the evolution of space markets? Is there a future for in-situ resource mining, space debris services, in-orbit satellite servicing and sub-orbital transportation? What are the lessons learned from ISS commercialization? In addition the reader will find a synopsis of several space transportation programs, commercial space markets, future Moon and Mars missions, in-situ resource exploitation concepts, space debris mitigation projects and sub-orbital commercial markets. Major lessons learned are identified, related to the attraction of first time customers and long term R&D funding, managing technological and market risks and developing new markets and applications.
This textbook provides a detailed introduction to the use of software in combination with simple and economical hardware (a sound level meter with calibrated AC output and a digital recording system) to obtain sophisticated measurements usually requiring expensive equipment. It emphasizes the use of free, open source, and multiplatform software. Many commercial acoustical measurement systems use software algorithms as an integral component; however the methods are not disclosed. This book enables the reader to develop useful algorithms and provides insight into the use of digital audio editing tools to document features in the signal. Topics covered include acoustical measurement principles, in-depth critical study of uncertainty applied to acoustical measurements, digital signal processing from the basics, and metrologically-oriented spectral and statistical analysis of signals. The student will gain a deep understanding of the use of software for measurement purposes; the ability to implement software-based measurement systems; familiarity with the hardware necessary to acquire and store signals; an appreciation for the key issue of long-term preservation of signals; and a full grasp of the often neglected issue of uncertainty in acoustical measurements. Pedagogical features include in-text worked-out examples, end-of-chapter problems, a glossary of metrology terms, and extensive appendices covering statistics, proofs, additional examples, file formats, and underlying theory.
This book focuses on advanced methods for the structural and thermal analysis of deepwater pipelines and risers. It discusses the limit strength of sandwich pipes, including finite-element analysis using Python scripts, collapse of sandwich pipes with cementitious/polymer composites, buckle propagation of sandwich pipes, dynamic behavior of subsea pipes, flow-induced vibration of functionally graded pipes, two-phase flow-induced vibration of pipelines, vortex-induced vibration of free-spanning pipelines, and the thermal analysis of composites pipes with passive insulation, active heating, and phase change material layers. It also explores structural analysis using finite element analysis and the integral transform technique for fluid-structure interaction. Lastly, the use of lumped parameter formulations combined with finite differences for the thermal analysis of pipelines is examined.
This authoritative new resource explores the communications aspect of electronic warfare and presents the major technical issues that drive the practice of land EW to help practitioners with their work in the field. The book offers a detailed understanding of the structure of tactical communications electronic warfare systems, the relationship between these systems and their targets, and the likely future development path of land electronic warfare. Written in a clear, easy-to-understand style, with accessible descriptions of tactical communications EW techniques, the book is a useful reference for technical and non-technical professionals alike.
This book presents articles from the World Conference on Acoustic Emission 2019 (WCAE-2019) held at Guangdong, China. The latest research and applications of acoustic emission (AE) are explored, with a particular emphasis on detecting and processing AE signals, the development of AE instrument and testing standards, AE of materials, engineering structures and systems, including the processing of collected data and analytical techniques. Numerous case studies are also included. It brings together leading academicians and professionals in the field to foster collaboration and to enhance research in this important area, with wide ranging applications.
This book highlights the symmetry properties of acoustic fields and describes the gauge invariance approach, which can be used to reveal those properties. Symmetry is the key theoretical framework of metamaterials, as has been demonstrated by the successful fabrication of acoustical metamaterials. The book first provides the necessary theoretical background, which includes the covariant derivative, the vector potential, and invariance in coordinate transformation. This is followed by descriptions of global gauge invariance (isotropy), and of local gauge invariance (anisotropy). Sections on time reversal symmetry, reflection invariance, and invariance of finite amplitude waves round out the coverage.
This book presents recent advances in the physics of magnetic reconnection, investigated via both in situ spacecraft observations and fully kinetic numerical simulations. Magnetic reconnection is a fundamental process in plasma physics during which the topological reconfiguration of the magnetic field leads to energy conversion and particle energization. The book focuses on the physics of the electron diffusion region (EDR), a crucial region where the electrons are decoupled from the magnetic field and efficiently accelerated by the electric field. By using recent, high-resolution measurements provided by NASA's Magnetospheric MultiScale Mission (MMS), the book investigates the structure of the EDR at the Earth's magnetopause. The presented analysis provides evidence for an inhomogeneous and patchy EDR structure. The structure of the EDR appears to be more complex than the in laminar picture suggested by previous observations and simulations. Then, electrons dynamics in the EDR is studied using a novel, fully kinetic Eulerian Vlasov-Darwin model that has been implemented in the Vlasov-DArwin numerical code (ViDA), explained in detail in the book. Lastly, the book covers the testing of this new code, and investigates the contributions of the different terms in the generalized Ohm's law within the EDR, highlighting the role of the electron inertia term.
Electroacoustic transducers (EAT) are devices, which transform electric energy to energy of acoustic fluctuations. Principles of action, design of transducers for work in air and water as well as for non-destructive control are described in the book. New technologies of designing EAT, not only expanding designing possibilities, are described. They also allow to create transducers with improved characteristics. In particular, methods to increase target capacity (sound pressure), decrease working (resonant) frequency of transducers and expand frequencies of projectors and sound receivers are developed. Methods and control units of transducers in batch production of transducers are described, too.
This book highlights the manufacturing and applications of acoustic textiles in various industries. It also includes examples from different industries in which acoustic textiles can be used to absorb noise and help reduce the impact of noise at the workplace. Given the importance of noise reduction in the working environment in several industries, the book offers a valuable guide for companies, educators and researchers involved with acoustic materials.
Presents a comprehensive synopsis of the current state of cosmic rays, their modulation and their effects in the Earth's atmosphere. Leading scientists in the field assess the current state of our understanding of the spatial and temporal variations of galactic and anomalous cosmic rays in the Heliosphere, and their relation to effects of the Sun. The main objective is to understand the spatial and temporal variation of galactic and anomalous cosmic rays in the light of recent observations, theory and modeling by identifying the key mechanism(s) of cosmic ray modulation and how changes on the Sun relate to changes in the observed characteristics of cosmic rays in the Heliosphere; examining the current long-lasting solar minimum and understand its implications for solar-cycle variations and long-term variations; and interpreting the long-term variations of cosmogenic radionuclides in terms of solar variability and climate change on Earth. This volume is aimed at graduate students active in the fields of solar physics, space science, and cosmic ray physics. Originally published in Space Science Reviews journal, Vol. 176/1-4, 2013.
This book considers two key educational tools for future generations of professionals with a space architecture background in the 21st century: (1) introducing the discipline of space architecture into the space system engineering curricula; and (2) developing space architecture as a distinct, complete training curriculum. Professionals educated this way will help shift focus from solely engineering-driven transportation systems and "sortie" missions towards permanent off-world human presence. The architectural training teaches young professionals to operate at all scales from the "overall picture" down to the smallest details, to provide directive intention-not just analysis-to design opportunities, to address the relationship between human behavior and the built environment, and to interact with many diverse fields and disciplines throughout the project lifecycle. This book will benefit individuals and organizations responsible for planning transportation and habitat systems in space, while also providing detailed information on work and design processes for architects and engineers.
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