This book discusses all spacecraft attitude control-related topics: spacecraft (including attitude measurements, actuator, and disturbance torques), modeling, spacecraft attitude determination and estimation, and spacecraft attitude controls. Unlike other books addressing these topics, this book focuses on quaternion-based methods because of its many merits. The book lays a brief, but necessary background on rotation sequence representations and frequently used reference frames that form the foundation of spacecraft attitude description. It then discusses the fundamentals of attitude determination using vector measurements, various efficient (including very recently developed) attitude determination algorithms, and the instruments and methods of popular vector measurements. With available attitude measurements, attitude control designs for inertial point and nadir pointing are presented in terms of required torques which are independent of actuators in use. Given the required control torques, some actuators are not able to generate the accurate control torques, therefore, spacecraft attitude control design methods with achievable torques for these actuators (for example, magnetic torque bars and control moment gyros) are provided. Some rigorous controllability results are provided. The book also includes attitude control in some special maneuvers, such as orbital-raising, docking and rendezvous, that are normally not discussed in similar books. Almost all design methods are based on state-spaced modern control approaches, such as linear quadratic optimal control, robust pole assignment control, model predictive control, and gain scheduling control. Applications of these methods to spacecraft attitude control problems are provided. Appendices are provided for readers who are not familiar with these topics.

Musical Sound, Instruments, and Equipment offers a basic understanding of sound, musical instruments and music equipment, geared towards a general audience and non-science majors. The book begins with an introduction of the fundamental properties of sound waves, and the perception of the characteristics of sound. The relation between intensity and loudness, and the relation between frequency and pitch are discussed. The basics of propagation of sound waves, and the interaction of sound waves with objects and structures of various sizes are introduced. Standing waves, harmonics and resonance are explained in simple terms, using graphics that provide a visual understanding.

Roger-Maurice Bonnet*Michel Blanc Originally published in the journal Space Science Reviews, Volume 137, Nos 1-4. DOI: 10. 1007/s11214-008-9418-0 (c) Springer Science+Business Media B. V. 2008 "Planetary Atmospheric Electricity" is the rst publication of its kind in the Space Science Series of ISSI. It is the result of a new and successful joint venture between ISSI and Eu- planet. Europlanet is a network of over 110 European and U. S. laboratories deeply involved in the development of planetary sciences and support to the European planetary space exp- ration programme. In 2004, the Europlanet consortium obtained support from the European Commission to strengthen the planetary science community worldwide, and to amplify the scienti c output, impact and visibility of the European space programme, essentially the - ropean Space Agency's Horizon 2000, Cosmic Vision programmes and their successors. Its presentcontractwiththeCommissionextendsfrom2005to2008,andincludes7networking activities, including discipline-based working groups covering the main areas of planetary sciences. A new contract with the Commission, presently under negotiation, will extend - roplanet's activities into the period 2009-2012. With the broad community connection made through its Discipline Working Groups and other activities, Europlanet offers an ideal base from which to identify new elds of research for planetary sciences and to stimulate coll- orative work among its member laboratories.

Vintage marine outboard motors 30 horsepower and above produced from 1955-1968.

In the course of the years the volumes in the Acoustical Imaging Series have developed to become well-known and appreciated reference works. Offering both a broad perspective on the state of the art in the field as well as an in-depth look at its leading edge research, this Volume 30 in the Series contains again an excellent collection of contributions, presented in five major categories:

Space Politics and Policy: An Evolutionary Perspective provides a comprehensive survey of Space Policy. This book is organized around two themes. Space Policy is evolutionary in that it has responded to dramatic political events, such as the launching of Sputnik and the Cold War, and has undergone dynamic and evolutionary policy changes over the course of the space age. Space Policy is an integral part of and interacts with public policy processes in the United States and abroad.

The book analyzes Space Policy at several levels including historical context, political actors and institutions, political processes and policy outcomes. It examines the symbiotic relationships between policy, technology, and science; provides a review and synthesis of the existing body of knowledge in Space Policy; and identifies Space Policy trends and developments from the beginnings of the space age through the current era of the twenty-first century.

This book on hydrocarbon exploration and production is the first volume in the series Developments in Petroleum Science. The chapters are: The Field Life Cycle, Exploration, Drilling Engineering, Safety and The Environment, Reservoir Description, Volumetric Estimation, Field Appraisal, Reservoir Dynamic Behaviour, Well Dynamic Behaviour, Surface Facilities, Production Operations and Maintenance, Project and Contract Management, Petroleum Economics, Managing the Producing Field, and Decommissioning.

Paperback. This publication contains 36 papers presented at four symposia during the Thirty-first COSPAR Scientific Assembly held in Birmingham, UK during 1996. Papers reflect the following symposia themes: life science support system studies; production, processing and waste recycling in a CELSS (Controlled Ecological Life Support System); biological effects of closure and recycling in a CELSS; nutrition and productivity for bioregenerative life support; integration of bioregenerative and physical/chemical processes for space life support systems. Findings presented in this volume will be a valuable resource for CELSS researchers for many years to come.

The joint NASA-ESA Cassini-Huygens mission promises to return four (and possibly more) years of unparalleled scientific data from the solar system's most exotic planet, the ringed, gas giant, Saturn. Larger than Galileo with a much greater communication bandwidth, Cassini can accomplish in a single flyby what Galileo returned in a series of passes. Cassini explores the Saturn environment in three dimensions, using gravity assists to climb out of the equatorial plane to look down on the rings from above, to image the aurora and to study polar magnetospheric processes such as field-aligned currents. Since the radiation belt particle fluxes are much more benign than those at Jupiter, Cassini can more safely explore the inner regions of the magnetosphere. The spacecraft approaches the planet closer than Galileo could, and explores the inner moons and the rings much more thoroughly than was possible at Jupiter. This book is the second volume, in a three volume set, that describes the Cassini/Huygens mission. This volume describes the in situ investigations on the Cassini orbiter: plasma spectrometer, ion and neutral mass spectrometer, energetic charged and neutral particle spectrometer, magnetometer, radio and plasma wave spectrometer and the cosmic dust analyzer. This book is of interest to all potential users of the Cassini-Huygens data, to those who wish to learn about the planned scientific return from the Cassini-Huygens mission and those curious about the processes occurring on this most fascinating planet. A third volume describes the remote sensing investigations on the orbiter.

The Space Age is nearly 50 years old but exploration of the outer planets and beyond has only just begun. Deep-Space Probes Second Edition draws on the latest research to explain why we should explore beyond the edge of the Solar System and how we can build highly sophisticated robot spacecraft to make the journey. Many technical problems remain to be solved, among them propulsion systems to permit far higher velocities, and technologies to build vehicles a fraction of the size of today's spacecraft.

Beyond the range of effective radio control, robot vehicles for exploring deep space will need to be intelligent, 'thinking' craft - able to make vital decisions entirely on their own. Gregory Matloff also looks at the possibility for human travel into interstellar space, and some of the immense problems that such journeys would entail.

This second edition includes an entirely new chapter on holographic message plaques for future interstellar probes - a NASA-funded project.

H. BALTSCHEFFSKYChairman Department of Biochemistry and Biophysics, Arrhenius Laboratories, Stockholm University, S-106 91 Stockholm, Sweden. Professor Stanley Miller, Professor K. R. Srinivasan, Organizers and Sponsors of this Conference, Ladies and Gentlemen; WearegettingreadyfortheAbdusSalamLecture, honoringtwomostdistinguishedsci- tists. Bothhaveverysigni?cantlycontributedtotherapidgrowthofthesphereoffun- mentalknowledgeinthesecondhalfofthetwentiethcentury. Abdus Salam, theoreticalphysicist, NobelPrizewinner, creatorandlongtimeleader of The Abdus Salam Center of Theoretical Physics. With his active interest in the origin oflifeheplayedaleadingroleininstigatingtheseconferencesonChemicalEvolutionand theOriginofLifehereinTrieste, whichstillareofsuchprimaryimportanceinthis?eld. Heleftthisworldin1996. And Stanley Miller, whomostgenerously, astheAbdusSalamLecturer, isgoingto giveushis"Recollectionsofthebeginningofchemicalevolutionexperiments" DearStanley, itisagreatprivilege, andindeedapleasuretointroduceyou. Thisisina wayaquiteeasytask, becauseweallalreadyknowthat"theMillerexperiment,"whichis mostappropriatelyplacedinthetitleofthisconference, in1953, exactly50yearsago, was amajorbreakthrough, openingupanewresearch?eldwith, andfor, rationalandadvanced chemicalexperimentationonthemolecularoriginoflife. Itwouldtaketoomuchtimetotrytodescribehereyourscienti?ccarrier, yourprices, yourPresidencyofISSOLandyourmanyothersuccesses. SoIratherwillendthisint- ductionwithacoupleofpersonalrecollections. First I would like to combine something of Abdus Salam and Stanley Miller. Abdus Salamgavethevery?rstinvitedlectureoftheUniversityofStockholmInternationalL- turesonHuman, GlobalandUniversalProblems, in1975. And10yearslater, atLidingo ] closetoStockholm, StanleyMillergavetheopeninglectureofaconferenceontheMol- ularEvolutionofLife. OnapictureItook, asaco-arrangeroftheseevents, Stanleyisseen approachinginhisusual, modestway, morefocussedonscienti?cdiscussionthanonthe camera. Last but not least, I shall tell you the true story about when we learned that Stanley isanenthusiasticenvironmentalist, inthebestsenseoftheword. About25yearsago, in Stockholm, Stanley, my wife and I strolled in the King's Garden. Its elmtrees were full 7 J. Seckbach et al. (eds. ), Life in the Universe,7-8. C 2004 Kluwer Academic Publishers. Printed in the Netherlands. 8 of young people who, some even spending nights in the trees, prevented the authorities from removing the elmtrees, by ax and saw. Also Stanley signed a petition to save the elmtrees-andtheyweresaved Stanley, I believe that your greatness as a scientist and as a friend must be linked to the many facets of your wonderful personality. We much look forward to your lecture. THE BEGINNING OF CHEMICAL EVOLUTION EXPERIMENTS Recollections and Perspectives 1 2 3 S. L. MILLER, J. L. BADA, and A."

The majority of this volume is devoted to the subject of high energy radiation from galactic and extragalactic black holes. The volume also covers future space missions to primitive bodies and fine structures in the middle atmosphere and their origin. In total, 27 papers are presented, the final two included in the appendix emanating from the previous COSPAR meeting in Washington.

BERGBUCHLEIN, The Little Book on Ores was published before 1518 and was the first book on mining ever printed. With references to alchemy and astronomy this English translation of the German text includes the full text and original woodcut illustrations. BERGBUCLIEN pre-dates DE RE METALLICA by four decades and sections of BERGBUCHLEIN were used by Georgius Agricola in his landmark text. Republished every century since its origination in the 1500s, with this edition BERGBUCHLEIN is once again available to audiences interested in the historical views of mining and ore formation.

This publication presents the proceedings of ICPMSE-4, the fourth international conference on Protection of Materials and Structures from the Low Earth Orbit Space Environment, held in Toronto April 23-24, 1998. The conference was hosted and organized by Integrity Testing Laboratory Inc. (ITL), and held at the University ofToronto's Institute for Aerospace Studies (UTIAS). Twenty two industrial companies, six universities and fourteen government agencies from Canada, USA, United Kingdom, France, Israel, Russia, Ukraine and the Netherlands were represented by over 75 participants indicating increasing international co-operation in this critical arena of protection of materials in space. Twenty-seven speakers, world experts in their fields, delivered talks on a wide variety of topics on various aspects of material protection in space. Representatives from the Canadian, American, European and Israeli space agencies as well as from leading space research laboratories ofmajor aerospace industries gathered at UTIAS to discuss the latest developments in the field of material and structure protection from the harsh space environment.

FRANCIS W. HOLM 7102 Meadow Lane, Chevy Chase, MD 20815 The North Atlantic Treaty Organization (NATO) sponsored an Advanced Research Workshop (ARW) in Prague, Czech Republic, on 1-2 July 1996, to collect and study information on mobile alternative and supplemental demilitarization technologies and to report these fmdings. The mobile, or transportable, technologies identified for assessment at the workshop are alternatives to incineration technology for destruction of munitions, chemical warfare agent, and associated materials and debris. Although the discussion focused on the treatment of metal parts and explosive or energetic material, requirements for decontamination of other materials were discussed. The mobile alternative technologies are grouped into three categories based on process bulk operating temperature: low (0-200 C), medium (200-600 C), and high (600- 3,500 C). Reaction types considered include hydrolysis, biodegradation, electrochemical oxidation, gas-phase high-temperature reduction, stearn reforming, gasification, sulfur reactions, solvated electron chemistry, sodium reactions, supercritical water oxidation, wet air oxidation, and plasma torch technology. These categories represent a broad spectrum of processes, some of which have been studied only in the laboratory and some of which are in commercial use for destruction of hazardous and toxic wastes. Some technologies have been developed and used for specific commercial applications; however, in all cases, research, development, test, and evaluation (RDT &E) is necessary to assure that each technology application is effective for destroying chemical warfare materiel.

This book gathers the proceedings of the Fifth Symposium on Hybrid RANS-LES Methods, which was held on March 19-21 in College Station, Texas, USA. The different chapters, written by leading experts, reports on the most recent developments in flow physics modelling, and gives a special emphasis to industrially relevant applications of hybrid RANS-LES methods and other turbulence-resolving modelling approaches. The book addresses academic researchers, graduate students, industrial engineers, as well as industrial R&D managers and consultants dealing with turbulence modelling, simulation and measurement, and with multidisciplinary applications of computational fluid dynamics (CFD), such as flow control, aero-acoustics, aero-elasticity and CFD-based multidisciplinary optimization. It discusses in particular advanced hybrid RANS-LES methods. Further topics include wall-modelled Large Eddy Simulation (WMLES) methods, embedded LES, and a comparison of the LES methods with both hybrid RANS-LES and URANS methods. Overall, the book provides readers with a snapshot on the state-of-the-art in CFD and turbulence modelling, with a special focus to hybrid RANS-LES methods and their industrial applications.

This book on recent investigations of the dynamics of celestial bodies in the solar and extra-Solar System is based on the elaborated lecture notes of a thematic school on the topic, held as a result of cooperation between the SYRTE Department of Paris Observatory and the section of astronomy of the Vienna University. Each chapter corresponds to a lecture of several hours given by its author(s). The book therefore represents a necessary and very precious document for teachers, students, and researchers in the ?eld. The ?rst two chapters by A. Lema ?tre and H. Skokos deal with standard topics of celestial mechanics: the ?rst one explains the basic principles of resonances in mechanics and their studies in the case of the Solar System. The differences between the various cases of resonance (mean motion, secular, etc. ) are emphasized together with resonant effects on celestial bodies moving around the Sun. The second one deals with approximative methods of describing chaos. These methods, some of them being classical, as the Lyapounov exponents, other ones being developed in the very recent past, are explained in full detail. The second one explains the basic principles of resonances in mechanics and their studies in the case of the Solar System. The differences between the various cases of resonance (mean motion, s- ular, etc. ) are emphasized together with resonant effects on celestial bodies moving around the Sun. The following three chapters by A. Cellino, by P. Robutel and J.

This book provides the first comprehensive overview of the fascinating topic of audio source separation based on non-negative matrix factorization, deep neural networks, and sparse component analysis. The first section of the book covers single channel source separation based on non-negative matrix factorization (NMF). After an introduction to the technique, two further chapters describe separation of known sources using non-negative spectrogram factorization, and temporal NMF models. In section two, NMF methods are extended to multi-channel source separation. Section three introduces deep neural network (DNN) techniques, with chapters on multichannel and single channel separation, and a further chapter on DNN based mask estimation for monaural speech separation. In section four, sparse component analysis (SCA) is discussed, with chapters on source separation using audio directional statistics modelling, multi-microphone MMSE-based techniques and diffusion map methods. The book brings together leading researchers to provide tutorial-like and in-depth treatments on major audio source separation topics, with the objective of becoming the definitive source for a comprehensive, authoritative, and accessible treatment. This book is written for graduate students and researchers who are interested in audio source separation techniques based on NMF, DNN and SCA.