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Books > Professional & Technical > Other technologies
This thesis presents fundamental work that explains two mysteries concerning the trajectory of interplanetary spacecraft. For the first problem, the so-called Pioneer anomaly, a wholly new and innovative method was developed for computing all contributions to the acceleration due to onboard thermal sources. Through a careful analysis of all parts of the spacecraft Pioneer 10 and 11, the application of this methodology has yielded the observed anomalous acceleration. This marks a major achievement, given that this problem remained unsolved for more than a decade. For the second anomaly, the flyby anomaly, a tiny glitch in the velocity of spacecraft that perform gravity assisting maneuvers on Earth, no definitive answer is put forward; however a quite promising strategy for examining the problem is provided and a new mission is proposed. The proposal largely consists in using the Galileo Navigational Satellite System to track approaching spacecraft, and in considering a small test body that approaches Earth from a highly elliptic trajectory.
This thesis develops new and powerful methods for identifying planetary signals in the presence of "noise" generated by stellar activity, and explores the physical origin of stellar intrinsic variability, using unique observations of the Sun seen as a star. In particular, it establishes that the intrinsic stellar radial-velocity variations mainly arise from suppression of photospheric convection by magnetic fields. With the advent of powerful telescopes and instruments we are now on the verge of discovering real Earth twins in orbit around other stars. The intrinsic variability of the host stars themselves, however, currently remains the main obstacle to determining the masses of such small planets. The methods developed here combine Gaussian-process regression for modeling the correlated signals arising from evolving active regions on a rotating star, and Bayesian model selection methods for distinguishing genuine planetary signals from false positives produced by stellar magnetic activity. The findings of this thesis represent a significant step towards determining the masses of potentially habitable planets orbiting Sun-like stars.
Addressing its technical evolution as well as its military and social impact, this comprehensive reference shows how historic leaders such as Dionysus of Syracuse, the Ottoman sultan Mohammad II, Oliver Cromwell, and Napoleon Bonaparte were successful in battle because of their innovative use of artillery. Artillery: An Illustrated History of Its Impact charts the development of large, crew-operated battlefield weapons from the dart firers and catapults of the ancient world to the invention of gunpowder in China and its applications in medieval Europe, and from the emergence of naval and land gunnery four centuries ago to the latest rapid-fire, rocket propulsion, laser guidance, and antiaircraft technologies. Written by an expert on military history, Artillery explores the technological and strategic innovations that have made these weapons increasingly effective at breaking through fortifications, inflicting casualties from a safe distance, providing cover for advancing forces, demoralizing opponents, and defending positions from attack. Beyond the battlefield, the book also looks at the impact of artillery on history and on the lives of civilians as well as soldiers. Includes case studies of the wars of Louis XIV, the Napoleonic Wars, the American Civil War, and the Franco-Prussian War illustrating the impact of specific technical and strategic innovations in artillery Dozens of photographs and illustrations show various types of artillery, artillery mechanisms, and projectiles
This book presents a comprehensive geopolitical analysis of European space activities. By studying outer space as a physical and socio-economic space as well as a military-diplomatic area, the author helps readers understand outer space as a geopolitical environment. The book also offers insights into the behavior and strategies of different actors, with a special focus on the European space strategy and the nature of the European space program and diplomacy.
Alaska and the Klondike Gold Fields is one of the most accurate accounts of the Klondike Gold Rush having been written during the Gold Rush at its height in 1897. It provides a full account of the discovery of gold. It outlines the enormous deposits of the precious metal, covers routes traveled by the miners, camp life and much more. Nearly 600 Pages tell the story of one of most famous gold rushes ever. Now back in print from Miningbooks.com
Concise and readable, "Water Injection For Low Permeability Reservoirs" provides operators with the proper workflow systems and engineering techniques for designing, planning and implementing water injection systems that will improve recovery factors. When used in low permeability or ultra-low permeability reservoirs, water injection is one of the most economical methods for ensuring maximum production rates. This book provides both theoretical analysis and practical cases for designing and evaluating water injection systems and understanding key production variables involved in making detailed predictions for oil and water producing rates, water injection rates, and recovery efficiency. This book clearly explains the characteristics of ultra-low
permeability reservoirs and linear flow theories. These topics are
then applied to design and implementation. Application cases of
four oilfields are included to help develop concepts while
illustrating the proper workflow for ensuring waterflooding
performance analysis and optimization. The book can be used as a
reference for field technical personnel, or as technical support
for the management personnel.
This book covers virtually all of the engineering science and technological aspects of separating water from particulate solids in the mining industry. It starts with an introduction to the field of mineral processing and the importance of water in mineral concentrators. The consumption of water in the various stages of concentration is discussed, as is the necessity of recovering the majority of that water for recycling. The book presents the fundamentals under which processes of solid-liquid separation are studied, approaching mixtures of discrete finely divided solid particles in water as a basis for dealing with sedimentation in particulate systems. Suspensions, treated as continuous media, provide the basis of sedimentation, flows through porous media and filtration. The book also considers particle aggregations, and thickening is analyzed in depth. Lastly, two chapters cover the fundamentals and application of rheology and the transport of suspensions. This work is suitable for researchers and professionals in
laboratories and plants, and can also serve as additional
readingfor graduate seminars on solid liquid separation as well as
for advanced undergraduate and graduate level studentsfor courses
of fluid mechanics, solid-liquid separation, thickening, filtration
and transport of suspensions in tubes and channels.
This two-part book is devoted to classic fundamentals and current practices and perspectives of modern plasma astrophysics. This second part discusses the physics of magnetic reconnection and flares of electromagnetic origin in space plasmas in the solar system, single and double stars, relativistic objects, accretion disks and their coronae. More than 25% of the text is updated from the first edition, included the additions of new figures, equations and entire sections on topics such as topological triggers for solar flares and the magnetospheric physics problem. This book is aimed at professional researchers in astrophysics, but it will also be useful to graduate students in space sciences, geophysics, applied physics and mathematics, especially those seeking a unified view of plasma physics and fluid mechanics.
"Acoustics: Sound Fields and Transducers "is a thoroughly updated version of Leo Beranek's classic 1954 book that retains and expands on the original's detailed acoustical fundamentals while adding practical formulas and simulation methods. Serving both as a text for students in engineering departments and as a reference for practicing engineers, this book focuses on electroacoustics, analyzing the behavior of transducers with the aid of electro-mechano-acoustical circuits. Assuming knowledge of electrical circuit theory, it starts by guiding readers through the basics of sound fields, the laws governing sound generation, radiation, and propagation, and general terminology. It then moves on to examine: Microphones (electrostatic and electromagnetic), electrodynamic loudspeakers, earphones, and hornsLoudspeaker enclosures, baffles, and waveguidesMiniature applications (e.g., MEMS in I-Pods and cellphones)Sound in enclosures of all sizes, such as school rooms, offices, auditoriums, and living rooms Numerical examples and summary charts are given throughout the
text to make the material easily applicable to practical design. It
is a valuable resource for experimenters, acoustical consultants,
and to those who anticipate being engineering designers of audio
equipment.
Manned Spacecraft Design Principles presents readers with a brief, to-the-point primer that includes a detailed introduction to the information required at the preliminary design stage of a manned space transportation system. In the process of developing the preliminary design, the book covers content not often discussed in a standard aerospace curriculum, including atmospheric entry dynamics, space launch dynamics, hypersonic flow fields, hypersonic heat transfer, and skin friction, along with the economic aspects of space flight. Key concepts relating to human factors and crew support systems are also included, providing users with a comprehensive guide on how to make informed choices from an array of competing options. The text can be used in conjunction with Pasquale Sforza's, Commercial Aircraft Design Principles to form a complete course in Aircraft/Spacecraft Design.
"Porous Models for Wave-seabed Interactions" discusses the Phenomenon of wave-seabed interactions, which is a vital issue for coastal and geotechnical engineers involved in the design of foundations for marine structures such as pipelines, breakwaters, platforms, etc. The most important sections of this book will be the fully detailed theoretical models of wave-seabed interaction problem, which are particularly useful for postgraduate students and junior researchers entering the discipline of marine geotechnics and offshore engineering. This book also converts the research outcomes of theoretical studies to engineering applications that will provide front-line engineers with practical and effective tools in the assessment of seabed instability in engineering design. Prof. Dong-Sheng Jeng works at Shanghai Jiao Tong University, China.
This textbook offers a readily comprehensible introduction to classical Newtonian gravitation, which is fundamental for an understanding of classical mechanics and is particularly relevant to Astrophysics. The opening chapter recalls essential elements of vectorial calculus, especially to provide the formalism used in subsequent chapters. In chapter two Classical Newtonian gravity theory for one point mass and for a generic number N of point masses is then presented and discussed. The theory for point masses is naturally extended to the continuous case. The third chapter addresses the paradigmatic case of spherical symmetry in the mass density distribution (central force), with introduction of the useful tool of qualitative treatment of motion. Subsequent chapters discuss the general case of non-symmetric mass density distribution and develop classical potential theory, with elements of harmonic theory, which is essential to understand the potential development in series of the gravitational potential, the subject of the fourth chapter. Finally, in the last chapter the specific case of motion of a satellite around the earth is considered. Examples and exercises are presented throughout the book to clarify aspects of the theory. The book is aimed at those who wish to progress further beyond an initial bachelor degree, onward to a master degree, and a PhD. It is also a valuable resource for postgraduates and active researchers in the field.
The PRoject for OnBoard Autonomy (PROBA) missions are a series of microsatellites launched by the European Space Agency (ESA) and intended to provide an in-orbit test platform for new technologies. The second satellite in the series, PROBA2, was launched on November 2, 2009. The primary mission goal of PROBA2 is to perform an in-flight demonstration of a series of new spacecraft technologies. The secondary mission goal is the exploitation of the payload of scientific instruments consisting of two Sun-sensing instruments, the Sun Watcher with Active Pixel Sensor and Image Processing, and the Large Yield Radiometer. Both instruments are unique in a technological sense but also provide unique scientific data for the solar physics community. In this volume, a number of papers are collected that give an overview of the mission, the spacecraft, its instrument and its operations. In addition, the scientific outcome of the mission during the first two years is presented in a series of research papers. This volume is aimed at graduate students and researchers active in solar physics and space science. Previously published in Solar Physics journal, Vol. 286, No. 1, 2013.
How does it happen that billions of stars can cooperate to produce the beautiful spirals that characterize so many galaxies, including ours? This book reviews the history behind the discovery of spiral galaxies and the problems faced when trying to explain the existence of spiral structure within them. In the book, subjects such as galaxy morphology and structure are addressed as well as several models for spiral structure. The evidence in favor or against these models is discussed. The book ends by discussing how spiral structure can be used as a proxy for other properties of spiral galaxies, such as their dark matter content and their central supermassive black hole masses, and why this is important.
Written by experts in their area of research, this book has outlined the current status of the fundamentals and analytical concepts, modelling and design issues, technical details and practical applications of different types of sensors and discussed about the trends of next generation of sensors and systems happening in the area of Sensing technology. This book will be useful as a reference book for engineers and scientist especially the post-graduate students find will this book as reference book for their research on wearable sensors, devices and technologies.
Heavily illustrated with 900 pictures of actual well control sites,
"Common Well Control Hazards: Identification and Countermeasures
"provides a visual representation of 177 common well control
hazards and how to prevent or counteract them. The perfect
companion for any engineer who needs to develop and apply their
skill more efficiently, this plain language guide covers common
well control equipment such as: BOP control system, BOP manifold,
kill manifold, drilling fluid recovery pipes, IBOP tools, liquid
gas separator, and fire, explosion & H2S prevention. With this
manual in hand, new hires not only learn about the inherent hazards
which await them out in the field but also gain expert advice for
deploying the necessary countermeasures which will lead to
effective, incident free field operations. Explains 177 kinds of potential hazards and countermeasure Identifies common hazards and their countermeasures "
In Probiotics, Prebiotics and Synbiotics: Technological Advancements Towards Safety and Industrial Applications, a team of distinguished researchers delivers an insightful exploration of various aspects of functional foods. The book includes information about critical facets of the production of these beneficial compounds, recent technological developments in the field, and their present and future commercial potential. The authors describe their mechanisms of action and their applications in several sectors. Probiotics, Prebiotics and Synbiotics is divided into five parts. A general introduction about these substances begins the book and is followed by discussions of common probiotics, prebiotics, and synbiotics. Finally, a treatment of safety issues and regulatory claims, as well as their market potential, rounds out the resource. Perfect for researchers, industry practitioners, and students working in or studying food processing and food microbiology, Probiotics, Prebiotics and Synbiotics is also an invaluable resource for professionals working in the field of food biotechnology. |
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