As with the first edition, this textbook provides a clear introduction to the fundamental theory of structural analysis as applied to vehicles, aircraft, spacecraft, automobiles, and ships. The emphasis is on the application of fundamental concepts of structural analysis in everyday engineering practice. No assumptions are made with regard to the method of analysis. All approximations are accompanied by a full explanation of their validity. Repetition is an important learning tool, and so some redundancy appears to dispel misunderstanding. The number of topics covered in detail is limited to those essential for modern structural engineering practice. In this new edition, more topics, figures, examples, and exercises have been added. A primary change has been a greater emphasis on the finite element methods of analysis. Three new chapters are now included, and clarity remains the hallmark of this text.

The series Advances in Industrial Control aims to report and encourage technology transfer in control engineering. The rapid development of control technology impacts all areas of the control discipline. New theory, new controllers, actuators, sensors, new industrial processes, computer methods, new applications, new philosophies . . . , new challenges. Much of this development work resides in industrial reports, feasibility study papers and the reports of advanced collaborative projects. The series offers an opportunity for researchers to present an extended exposition of such new work in all aspects of industrial control for wider and rapid dissemination. Operating plant as close as possible to constraint boundaries so often brings economic benefits in industrial process control. This is the conundrum at the heart of this monograph by Tommy Gravdahl and Olav Egeland on stall control for compressors. Operation of the compressor closer to the surge line can increase operational efficiency and flexibility The approach taken by the authors follows the modern control system paradigm: -physical understanding, detailed modelling and simulation studies and finally control studies. The thoroughness of the presentation, bibliography and appendices indicates that the volume has all the hallmarks of being a classic for its subject. Despite the monograph's narrow technical content, the techniques and insights presented should appeal to the wider industrial control community as well as the gas turbine/compressor specialist. M. J. Grimble and M. A.

The Joint Institute for Aeronautics and Acoustics at Stanford University was established in October 1973 to provide an academic environment for long-term cooperative research between Stanford and NASA Ames Research Center. Since its establishment, the Institute has conducted theoretical and experimental work in the areas of aerodynamics, acoustics, fluid mechanics, flight dynamics, guidance and control, and human factors. This research has involved Stanford faculty, research associates, graduate students, and many distinguished visitors in collaborative efforts with the research staff of NASA Ames Research Center. The occasion of the Institute's tenth anniversary was used to reflect back on where that research has brought us, and to consider where our endeavors should be directed next. Thus, an International Symposium was held to review recent advances in the fields relevant to the activities of the Institute and to discuss the areas of research to be undertaken in the future. This anniversary was also chosen as an opportunity to honor one of the Institute's founders and its director, Professor Krishnamurty Karamcheti. It has been his crea tive inspiration that has provided the ideal research environment at the Joint Institute."

This book is an effort to explore the technical aspects associated with bird flight and migration on wings. After a short introduction on the birds migration, the book reviews the aerodynamics and Energetics of Flight and presents the calculation of the Migration Range. In addition, the authors explains aerodynamics of the formation flight and finally introduces great flight diagrams.

In this popular science book, Graham Swinerd explains, without the use of mathematics and in an informal way, aerodynamic and astrodynamic flight for non-technical readers who are interested in spaceflight and spacecraft.

J.L. Burch.V. Angelopoulos Originally published in the journal Space Science Reviews, Volume 141, Nos 1-4, 1-3. DOI: 10.1007/s11214-008-9474-5 (c) Springer Science+Business Media B.V. 2008 The Earth, like all the other planets, is continuously bombarded by the solar wind, which is variable on many time scales owing to its connection to the activity of the Sun. But the Earth is unique among planets because its atmosphere, magnetic eld, and rotation rates are each signi cant, though not dominant, players in the formation of its magnetosphere and its reaction to solar-wind inputs. An intriguing fact is that no matter what the time scale of solar-wind variations, the Earth's response has a de nite pattern lasting a few hours. Known as a magnetospheric substorm, the response involves a build-up, a crash, and a recovery. The build-up (known as the growth phase) occurs because of an interlinking of the geom- netic eld and the solar-wind magnetic eld known as magnetic reconnection, which leads to storage of increasing amounts of magnetic energy and stress in the tail of the mag- tosphere and lasts about a half hour. The crash (known as the expansion phase) occurs when the increased magnetic energy and stresses are impulsively relieved, the current system that supports the stretched out magnetic tail is diverted into the ionosphere, and bright, dynamic displays of the aurora appear in the upper atmosphere. The expansion and subsequent rec- ery phases result from a second magnetic reconnection event that decouples the solar-wind and geomagnetic elds."

The published material represents the outgrowth of teaching analytical optimization to aerospace engineering graduate students. To make the material available to the widest audience, the prerequisites are limited to calculus and differential equations. It is also a book about the mathematical aspects of optimal control theory. It was developed in an engineering environment from material learned by the author while applying it to the solution of engineering problems. One goal of the book is to help engineering graduate students learn the fundamentals which are needed to apply the methods to engineering problems. The examples are from geometry and elementary dynamical systems so that they can be understood by all engineering students. Another goal of this text is to unify optimization by using the differential of calculus to create the Taylor series expansions needed to derive the optimality conditions of optimal control theory.

In Human Missions to Mars Donald Rapp looks at human missions to Mars from an engineering perspective. He begins by describing the pros and cons of robotic exploration versus human exploration and then examines the ideas for sending humans to Mars from the point of view of both the enthusiast and the skeptic. Chapter 2 describes how space missions are planned and how they may be achieved as a sequence of separate steps. Chapter 3 deals with the complex issues relating to the outward journey to Mars and the return leg. The author deals with propulsion systems and with the analysis of the various trajectories which may be utilized for such a mission. He divides mission into a number of stages: Earth s surface to low-Earth orbit (LEO); departing from LEO; Mars orbit insertion and landing; ascent from Mars; trans-Earth injection from Mars orbit and Earth orbit insertion and landing. Chapter 4 discusses a wide range of elements critical to a human Mars mission, including life support consumables, radiation effects and shielding, microgravity effects, abort options and mission safety, possible habitats on the Martian surface and aero assisted orbit insertion and entry decent and landing.

For any human mission to the Red Planet the possible utilization of any resources indigenous to Mars would be of great value and such possibilities are discussed in Chapter 5. The use of indigenous resources on the Moon is described as a precursor to the availability of similar resources on Mars and issues such as fuelling Mars-bound craft from lunar resources, the use of lunar ferries, staging, assembly and refueling in near-Earth space are all discussed. The important applications arising from the transportation of hydrogen to Mars are also described. Chapter 6 deals with a range of previous Mars mission studies and the technologies they employed. Chapter 7 looks as how NASA is planning for its return to the Moon, and the use of the Moon as a stepping stone to Mars. Chapter 8 presents the author s detailed analysis of why, in his opinion, the current NASA approach will fail to send humans to Mars before 2080. The book concludes with three appendices describing the use of solar energy on the Moon and on Mars and the value of indigenous water on Mars."

Understanding how the Sun changes though its 11-year sunspot cycle and how these changes affect the vast space around the Sun the heliosphere has been one of the principal objectives of space research since the advent of the space age. This book presents the evolution of the heliosphere through an entire solar activity cycle. The last solar cycle (cycle 23) has been the best observed from both the Earth and from a fleet of spacecraft. Of these, the joint ESA-NASA Ulysses probe has provided continuous observations of the state of the heliosphere since 1990 from a unique vantage point, that of a nearly polar orbit around the Sun. Ulysses results affect our understanding of the heliosphere from the interior of the Sun to the interstellar medium - beyond the outer boundary of the heliosphere. Written by scientists closely associated with the Ulysses mission, the book describes and explains the many different aspects of changes in the heliosphere in response to solar activity. In particular, the authors describe the rise in solar activity from the last minimum in solar activity in 1996 to its maximum in 2000 and the subsequent decline in activity."

In-fl ight simulation experiments performed in 1967 with a variable-stabil ity aircraft during the author's stay at Princeton University, motivated the study of handl ing characteristics of future transport aircraft with closed-loop fl ight control systems. In 1972, the first experiment took place at the National Aerospace Laboratory NLR, using one of its research aircraft. In anticipation of expected developments in (digital) fl ight control technology, the research programme following the first experiments was aimed at the establ ishment of quantitative handl ing qual ities criteria. An appreciable part of that programme has been sponsored by the Netherlands Agency for Aerospace Programs (Nederlands Instituut voor VI iegtuigontwikkel ing en Ruimtevaart) and the Department of Civil Aviation of the Netherlands (Rijksluchtvaartdienst). In 1981, a thorough review of the extensive and valuable data gathered was started. The result, presented in this book, was also included in the author's thesis for a Ph.D. degree of the Delft University of Technology. To introduce the reader to the multi-discipl inary field of handl ing qual ities research, introductory chapters are presented on longitudinal aircraft dynamics, closed-loop fl ight control systems using non-mechanical signal transmission, human pilot dynamics, hand I ing qual ities assessment techniques, and the present status of handl ing qual ity criteria.

An understandable perspective on the types of space propulsion systems necessary to enable low-cost space flights to Earth orbit and to the Moon and the future developments necessary for exploration of the solar system and beyond to the stars.

In the early 1990s, NASA Goddard Space Flight Center started researching and developing autonomous and autonomic ground and spacecraft control systems for future NASA missions. This research started by experimenting with and developing expert systems to automate ground station software and reduce the number of people needed to control a spacecraft. This was followed by research into agent-based technology to develop autonomous ground c- trol and spacecraft. Research into this area has now evolved into using the concepts of autonomic systems to make future space missions self-managing and giving them a high degree of survivability in the harsh environments in which they operate. This book describes much of the results of this research. In addition, it aimstodiscusstheneededsoftwaretomakefutureNASAspacemissionsmore completelyautonomousandautonomic.Thecoreofthesoftwareforthesenew missions has been written for other applications or is being applied gradually in current missions, or is in current development. It is intended that this book should document how NASA missions are becoming more autonomous and autonomic and should point to the way of making future missions highly - tonomous and autonomic. What is not covered is the supporting hardware of these missions or the intricate software that implements orbit and at- tude determination, on-board resource allocation, or planning and scheduling (though we refer to these technologies and give references for the interested reader).

In this and a following issue (Vol. VIII, 1962, Fasc. 2-3) of "Astronautica Acta" there will appear the papers presented at the first international symposium sponsored by the International Academy of Astronautics of the International Astronautical Federation. The theme of the meeting was "Space Flight and Re-Entry Trajectories." It was held at Louveciennes outside of Paris on June 19-21, 1961. Sixteen papers by authors from nine countries were presented; attendees numbered from 80 to 100. The organizing committee for the symposium was as follows: Prof. PAUL A. LIBBY, Polytechnic Institute of Brooklyn, U.S.A., Chairman; Prof. LuiGI BROGLIO, University of Rome, Italy; Prof. B. FRAEIJS DE VEUBEKE, University of Liege, Belgium; Dr. D. G. KING-HELE, Royal Aircraft Establishment, Farnborough, Rants, United Kingdom; Prof. J. M. J. KooY, Royal Military School, Breda, Netherlands; Prof. JEAN KovALEVSKY, Bureau des Longitudes, Paris, France; Prof. RuDOLF PESEK, Academy of Sciences, Prague, Czechoslovakia. The detailed arrangements for the meeting were made in a most satisfactory manner by Dr. FRANK J. MALINA, Deputy Director of IAA and Mr. A. R. WEILLER, Acting Secretary of IAA. Prof. THEODORE VON KARMAN, Director of IAA, in his remarks closing the symposium indicated his satisfaction at the interest being shown in "the science of the future." The papers which follow will make a permanent contribution to the literature of this science.

Deep Space Craft opens the door to interplanetary flight. It looks at this world from the vantage point of real operations on a specific mission, and follows a natural trail from the day-to-day working of this particular spacecraft, through the functioning of all spacecraft to the collaboration of the various disciplines to produce the results for which a spacecraft is designed. These results are of course mostly of a scientific nature, although a small number of interplanetary missions are also flown primarily to test and prove new engineering techniques. The author shows how, in order to make sense of all the scientific data coming back to Earth, the need for experiments and instrumentation arises, and follows the design and construction of the instruments through to their placement and testing on a spacecraft prior to launch. Examples are given of the interaction between an instrument's science team and the mission's flight team to plan and specify observations, gather and analyze data in flight, and finally present the results and discoveries to the scientific community.

This highly focused, insider's guide to interplanetary space exploration uses many examples of previous and current endeavors. It will enable the reader to research almost any topic related to spacecraft and to seek the latest scientific findings, the newest emerging technologies, or the current status of a favorite flight. In order to provide easy paths from the general to the specific, the text constantly refers to the Appendices. Within the main text, the intent is general familiarization and categorization of spacecraft and instruments at a high level, to provide a mental framework to place in context and understand any spacecraft and any instrument encountered in the reader's experience.

Appendix A gives illustrated descriptions of many interplanetary spacecraft, some earth-orbiters and ground facilities to reinforce the classification framework. Appendix B contains illustrated detailed descriptions of a dozen scientific instruments, including some ground-breaking engineering appliances that have either already been in operation or are poised for flight. Each instrument's range of sensitivity in wavelengths of light, etc, and its physical principle(s) of operation is described. Appendix C has a few annotated illustrations to clarify the nomenclature of regions and structures in the solar system and the planets' ring systems, and places the solar system in context with the local interstellar environment.

This book illustrates how potential flows enter into the general theory of motions of viscous and viscoelastic fluids. Traditionally, the theory of potential flow is presented as a subject called 'potential flow of an inviscid fluid'; when the fluid is incompressible these fluids are, curiously, said to be 'perfect' or 'ideal'. This type of presentation is widespread; it can be found in every book on fluid mechanics, but it is flawed. It is never necessary and typically not useful to put the viscosity of fluids in potential (irrotational) flow to zero. The dimensionless description of potential flows of fluids with a nonzero viscosity depends on the Reynolds number, and the theory of potential flow of an inviscid fluid can be said to rise as the Reynolds number tends to infinity. The theory given here can be described as the theory of potential flows at finite and even small Reynolds numbers.

Spacepolicyisanissueareaofparticularstrategicrelevance. Itreceivesaconstantly growingattentionbynationalgovernmentsandtheEuropeanUnion. Ittouches numerousimportantareaslikesecurity,science,technology,knowledge,infor- tion,mobility,environmentorresourcemanagement,tonameonlyafew. Through this,spacepolicydrawsfrombutalsodrivesthemostdecisiveaspectsofmodern society. Anillustrationforthisstatementcanbegivenwithabrieflookonrecent developmentsinspacepolicy. InparticulartheadoptionoftheEuropeanSpace PolicyinMay2007,whichhadbeenjointlypreparedbytheEuropeanSpaceAgency andtheEuropeanCommission,doeshaveatremendousimpactonareasbene?ting fromspaceapplications,likeclimateresearch,disastermanagementorresource management. TheEuropeanSpacePolicywillalsopushareaslikenavigationor telecommunications,whichareattheheartoftheknowledgesocietyandtheme- issueofmobility. Atthesametime,securityinallitsfacetsisgrowinglydependingon theuseofspacecapabilitiesandspacepolicymakinghasstartedtore?ectthis. Onthe globallevel,theinitiativesforroboticandhumanspaceexplorationgainmoreand moreprominenceandwithactorslikeChina,arenaissanceofspaceasastrategictool forinternationalprestigeandin?uencecanbeobserved. Thecharacterofspacepolicyandthedynamisminthis?eldanditsrelatedareas makeitappropriateandevennecessarytosurveythis?eldonacontinuousbasiswith ahighstandard. ThisreasoningwasthebasisfortheinitiativebytheEuropeanSpace PolicyInstitute(ESPI)topreparetheYearbookonSpacePolicy. TheYearbookis intended to become the reference publication for the analysis of space policy developments. ThescopeisglobalbuttheperspectiveisEuropean. Thiscoincides withESPI?smissiontobethefocalpointforEuropeanresearchinthe?eldofspace policyasprovidedforbythedecisionoftheCounciloftheEuropeanSpaceAgency tofoundESPI. Asathinktank,ESPIhastoprovideinformationandanalysisandto contributefacilitating the decision-making process. The Yearbook isaimed to becomea?agshipinESPI?sproductlineapproachingthisgoal. Theaspirationis thattheYearbookonSpacePolicymaygainthestatureofcomparableyearbooksin internationalrelationsbyleadingthinktanksaroundtheworld. TheYearbookonSpacePolicyhasanumberofspeci?cfeatures. Thereporting periodwillusuallybefromJulytoJune,leadingtoitspublicationinthebeginningof thefollowingyear. Forthis?rstedition,thereportingperiodwassettostartearlier (from1January2006)butstopatthetypicaldate(30June2007). Thisservesthe purposetocoverthewholeyear2006. TheYearbookwillhavethreeparts. The?rst partispreparedbyESPIandprovidesasystematicanalysisofthemainspace v Preface activitiesintheglobalpoliticalcontext. Itcontainsapresentationofthemajor developmentsinspacepolicies,programmesandtechnologiesaroundtheworld. In thesecondpart,usuallyaroundtenprominentresearcherscontributearticlesto speci?ctopicsofparticularrelevance. Inthiseditiontheyarerelatedtoinitiativesand decisionsinEuropeanspacepolicies -asindicatedinthisyear?smottoofthe Yearbook-Spacepolicyisanissueareaofparticularstrategicrelevance. Itreceivesaconstantly growingattentionbynationalgovernmentsandtheEuropeanUnion. Ittouches numerousimportantareaslikesecurity,science,technology,knowledge,infor- tion,mobility,environmentorresourcemanagement,tonameonlyafew. Through this,spacepolicydrawsfrombutalsodrivesthemostdecisiveaspectsofmodern society. Anillustrationforthisstatementcanbegivenwithabrieflookonrecent developmentsinspacepolicy. InparticulartheadoptionoftheEuropeanSpace PolicyinMay2007,whichhadbeenjointlypreparedbytheEuropeanSpaceAgency andtheEuropeanCommission,doeshaveatremendousimpactonareasbene?ting fromspaceapplications,likeclimateresearch,disastermanagementorresource management. TheEuropeanSpacePolicywillalsopushareaslikenavigationor telecommunications,whichareattheheartoftheknowledgesocietyandtheme- issueofmobility. Atthesametime,securityinallitsfacetsisgrowinglydependingon theuseofspacecapabilitiesandspacepolicymakinghasstartedtore?ectthis. Onthe globallevel,theinitiativesforroboticandhumanspaceexplorationgainmoreand moreprominenceandwithactorslikeChina,arenaissanceofspaceasastrategictool forinternationalprestigeandin?uencecanbeobserved. Thecharacterofspacepolicyandthedynamisminthis?eldanditsrelatedareas makeitappropriateandevennecessarytosurveythis?eldonacontinuousbasiswith ahighstandard. ThisreasoningwasthebasisfortheinitiativebytheEuropeanSpace PolicyInstitute(ESPI)topreparetheYearbookonSpacePolicy. TheYearbookis intended to become the reference publication for the analysis of space policy developments. ThescopeisglobalbuttheperspectiveisEuropean. Thiscoincides withESPI?smissiontobethefocalpointforEuropeanresearchinthe?eldofspace policyasprovidedforbythedecisionoftheCounciloftheEuropeanSpaceAgency tofoundESPI. Asathinktank,ESPIhastoprovideinformationandanalysisandto contributefacilitating the decision-making process. The Yearbook isaimed to becomea?agshipinESPI? sproductlineapproachingthisgoal. Theaspirationis thattheYearbookonSpacePolicymaygainthestatureofcomparableyearbooksin internationalrelationsbyleadingthinktanksaroundtheworld. TheYearbookonSpacePolicyhasanumberofspeci?cfeatures. Thereporting periodwillusuallybefromJulytoJune,leadingtoitspublicationinthebeginningof thefollowingyear. Forthis?rstedition,thereportingperiodwassettostartearlier (from1January2006)butstopatthetypicaldate(30June2007). Thisservesthe purposetocoverthewholeyear2006. TheYearbookwillhavethreeparts. The?rst partispreparedbyESPIandprovidesasystematicanalysisofthemainspace v Preface activitiesintheglobalpoliticalcontext. Itcontainsapresentationofthemajor developmentsinspacepolicies,programmesandtechnologiesaroundtheworld. In thesecondpart,usuallyaroundtenprominentresearcherscontributearticlesto speci?ctopicsofparticularrelevance. Inthiseditiontheyarerelatedtoinitiativesand decisionsinEuropeanspacepolicies -asindicatedinthisyear?smottoofthe Yearbook-butalsoglobalissuesliketherecentChineseantisatellitetestorthenew Japanesespaceregulation. ThethirdpartoftheYearbook,againpreparedbyESPI, contains a unique compilation of important facts and ?gures. It includes achronology,anoverviewonspaceactivitiesinselectedcountriesandabibliography. TheprojectofacomprehensiveYearbookrequiresthecooperationofthewhole community. ThisiswhyESPI?sworkforthispublicationiscomplementedbythe contributionsofexternalauthorsprovidingtheirexceptionalinsightsandexperiences. ThesecontributorsfromalloverEuropearetheleadingacademicexpertsmainlybased inthinktanksanduniversityinstituteswhilesomearealsoassociatedwithspace agenciesorworkinindustryorresearchanddevelopment. Theyarepartofthe EuropeanSpacePolicyResearchandAcademicNetwork(ESPRAN)coordinatedby ESPI. ItisimportanttomentionthatalsoexpertsfromoutsideEuropecanbepartof thisnetwork. ThisishighlightedbythecontributionofJohnLogsdon(George WashingtonUniversity,WashingtonDC),oneofthedoyensinspacepolicyresearch. InvolvedinthisendeavourisalsoanEditorialAdvisoryBoard,composedofthe membersofESPI?sAdvisoryCouncil. Allthisaimsatsecuringtheacademicqualityof theYearbookanditsaimtobecomearelevantsourceofinformationandanalysis. AnimportantelementofthesuccessofsuchaninitiativelikethisYearbookisthe mediumofitspresentation. ESPIisextremelypleasedthatSpringerWienNewYork wasfromtheoutsetverymuchinterestedinthisproject. Throughtheexcellent collaborationwithSpringer?sSilviaSchilgeriusthechallengesofa?rsteditionfor suchaYearbookseriesweremasteredwithgreatease. CooperationbetweenESPI andSpringerWienNewYorkisintendedtointensifyfurtherwithadedicatedbook seriesonspacepolicy. TheseperspectiveswereadditionalmotivationforESPI?s editorialteamforthis?rsteditionoftheYearbook,whereNicolasPeterauthored Part1,CharlotteMathieueditedPart2andCharlotteMathieuandBlandina BaranespreparedPart3. Valuablecontributionsandsupportwereprovidedinthe earlyplanningphasebySergePlattardandintheeditorialphasebyPierre-Henri Pisani,JulieAbouYehiaandTimSkurbaty. Itiswithgreatcon?dencethatwebring this Yearbook to the attention of decision makers, professionals in industry, researchandsciencedealingwithspaceactivitiesandinternationalrelationsand alsotothebroaderpublic,whichintendstounderstandthepoliciesbehindoneof themostimportantandfascinatingprovincesofmodernsociety:space! Kai-UweSchrogl,CharlotteMathieu,NicolasPeter ESPIeditorialteam vi Tableofcontents Tableofcontents Listofacronyms...xiv Listof?guresandtables ...xxii PART1 TheYearinSpace2006/2007 Chapter1. Europeanspaceactivitiesintheglobal context. NicolasPeter 1. Geopoliticaltrends ...2 1. 1. Globaleconomicoutlook ...2 1. 2. Politicaldevelopmentsin2006/2007...3 1. 2. 1. Europe ...3 1. 2. 2. UnitedStates...4 1. 2. 3. Russia...5 1. 2. 4. Japan...5 1. 2. 5. China...6 1. 2. 6. India...7 1. 3. Internationalsecurity...7 1. 4. Majorhighlightsinscienti?cactivitiesandresearch ...8 1. 5. Mainscienceandtechnologyindicators relevanttospace activities...11 1. 5. 1. Scienceandtechnologyinputs ...11 1. 5. 2. Scienceandtechnologyoutputs...13 2. Worldwidespacepoliciesandstrategies ...16 2. 1. TheUnitedNationssystem...16 2. 1. 1. UnitedNationsGeneralAssemblycommittees...18 2. 1. 2. OtherUnitedNationsbodiesandorgans...

The first edition of this book was voted Winner of the 2004 International Academy of Astronautics Life Sciences Award. The second edition deals with psychological, psychiatric, and psychosocial issues that affect people who live and work in space. Unlike other books that focus on anecdotal reports and ground-based simulation studies, this book emphasizes the findings from psychological research conducted during actual space missions. Both authors have been active in such research.

In May 1995 a meeting took place at the Manchester Metropolitan Uni versity, UK, with the title International Workshop on Numerical Methods for Wave Propagation Phenomena. The Workshop, which was attended by 60 scientists from 13 countries, was preceded by a short course enti tled High-Resolution Numerical Methods for Wave Propagation Phenom ena. The course participants could then join the Workshop and listen to discussions of the latest work in the field led by experts responsible for such developments. The present volume contains written versions of their contributions from the majority of the speakers at the Workshop. Professor Amiram Harten, but for his untimely death at the age of 50 years, would have been one of the speakers at the Workshop. His remarkable contributions to Numerical Analysis of Conservation Laws are commemo rated in this volume, which includes the text of the First Harten Memorial Lecture, delivered by Professor P. L. Roe from the University of Michigan in Ann Arbour, USA."

Humans and space When faced with the issue of space exploration, one generally has an idea of the ?elds of study and disciplines that are involved: technology, physics and chemistry, robotics, astronomy and planetary science, space biology and medicine, disciplines which are usually referred to as the ?sciences?. In recent discussions, the human element of space exploration has attracted more and more the interest of the space sciences. As a consequence, adjacent disciplines have gained in relevance in space exploration and space research, in times when human space ?ights are almost part of everyday life. These disciplines include psychology and sociology, but also history, philosophy, anthropology, cultural studies, political sciences and law. The cont- bution of knowledge in these ?elds plays an important role in achieving the next generation of space exploration, where humans will resume exploring the Moon and, eventually, Mars, and wherespacetourism isbeginningtobedeveloped. With regard to technology, one might soon be prepared for this. Much less is this the case with space exploration by humans, rather than by robots. Robotic explorations to other planets across the solar system have developed in the past 50 years, since the beginning of the ?space age? with the presence of humans in nearby space and the landing on the Moon. Space exploration is now not only focused on technological achievements, asitsdevelopmentalsohassocial, culturalandeconomicimpacts. This makes human space exploration a topic to address in a cross-disciplinary mann

This work investigates the permissibility and viability of property rights on the - lestial bodies, particularly the extraterrestrial aspects of land and mineral resources ownership. In lay terms, it aims to ?nd an answer to the question "Who owns the Moon?" The ?rst chapter critically analyses and dismantles with legal arguments the issue of sale of extraterrestrial real estate, after having perused some of the trivial claims of celestial bodies ownership. The only consequence these claims have on the plane of space law is to highlight the need for a better regulation of extraterrestrial landed property rights. Next, thebook addresses theapparent silenceofthelawinthe?eldofextraterr- trial landed property, scrutinizing whether the factual situation on the extraterrestrial realms calls for legal regulations. The sources of law are examined in their dual dimension - that is, the facts that have caused and shaped the law of extraterrestrial real estate, and the norms which express this law. It is found that the norms and rules regarding property rights in the celestial realms are rather limited, failing to de?ne basic concepts such as celestial body.

"Systems of Commercial Turbofan Engines" gives the reader information about the operation of the engine systems, its components and the terminology used throughout the industry. The engine systems are explained by the use of examples from today's engines. So the readers, from aircraft mechanics to commercial pilot, become familiar with the current technology in this field and attains a deeper knowledge of the systems of commercial turbofan engines.

To understand the operation of gas turbine engines used in aircraft, it is not enough to understand the basic operation of a gas turbine. It is also necessary to understand the operation and the design of its auxiliary systems. This book is an introduction into the systems of modern commercial aircraft gas turbine engines. It is made for the reader who is familiar with the basic operation of aircraft gas turbine engine.

TheseriesAdvancesinIndustrialControl aimsto reportandencouragete- nologytransferincontrolengineering.Therapiddevelopmentofcontrolte- nology has an impact on all areas of the control discipline. New theory, new controllers, actuators, sensors, new industrial processes, computer methods, new applications, new philosophies, new challenges. Much of this devel- ment work resides in industrial reports, feasibility study papers and the - ports of advanced collaborative projects. The series o?ers an opportunity for researchersto present an extended exposition of such new work in all aspects of industrial control for wider and rapid dissemination. Autonomy for aerial, land, and marine (surface and underwater) vehicles is an ever-expanding ?eld of industrial control engineering in which there is signi?cant international interest. Currently, there are many prototypes and working autonomous vehicles in all the ?elds of application; however, some areas are better developed than others. Meanwhile in the control conference literature it is possible to see that frontier research has reached the pr- lems of working with groups, convoys or swarms of cooperating autonomous vehicles. The tasks that autonomous mobiles can tackle are very often either h- ardous, or, conversely, routine, wheretheuseofaninsitu humanoperatoristo be avoided, or simply technically (and economically) unnecessary. Typically, such tasks involve inspection, monitoring, and detection. For example, - manned aerial vehicles (UAVs) can be used to perform airborne sea searches, inspect long-distance power lines or oil and gas pipelines (particularly those traversing hostile, or hazardous terrain), monitor environmental or meteo- logical variables and survey crop production and forestry resources. This list is by no means exhaustive and UAVs can perform many other valuable tas

Widely used for power generation, gas turbine engines are susceptible to faults due to the harsh working environment. Most engine problems are preceded by a sharp change in measurement deviations compared to a baseline engine, but the trend data of these deviations over time are contaminated with noise and non-Gaussian outliers. Gas Turbine Diagnostics: Signal Processing and Fault Isolation presents signal processing algorithms to improve fault diagnosis in gas turbine engines, particularly jet engines. The algorithms focus on removing noise and outliers while keeping the key signal features that may indicate a fault. The book brings together recent methods in data filtering, trend shift detection, and fault isolation, including several novel approaches proposed by the author. Each method is demonstrated through numerical simulations that can be easily performed by the reader. Coverage includes: Filters for gas turbines with slow data availability Hybrid filters for engines equipped with faster data monitoring systems Nonlinear myriad filters for cases where monitoring of transient data can lead to better fault detection Innovative nonlinear filters for data cleaning developed using optimization methods An edge detector based on gradient and Laplacian calculations A process of automating fault isolation using a bank of Kalman filters, fuzzy logic systems, neural networks, and genetic fuzzy systems when an engine model is available An example of vibration-based diagnostics for turbine blades to complement the performance-based methods Using simple examples, the book describes new research tools to more effectively isolate faults in gas turbine engines. These algorithms may also be useful for condition and health monitoring in other systems where sharp changes in measurement data indicate the onset of a fault.

Whether an airplane or a space shuttle, a flying machine requires advanced materials to provide a strong, lightweight body and a powerful engine that functions at high temperature. The Aerospace Materials Handbook examines these materials, covering traditional superalloys as well as more recently developed light alloys. Capturing state-of-the-art developments in materials research for aeronautical and aerospace applications, this book provides a timely reference for both newcomers and veteran researchers in the field. The chapters address developments in bulk materials, coatings, traditional materials, and new materials. Beginning with an overview of superalloys, including nickel-, nickel-iron-, and cobalt-based superalloys, the text covers machining, laser cladding and alloying, corrosion performance, high-temperature oxidation, thermal spraying, and nanostructured coatings. It also includes four categories of composites used in aerospace: metal matrix, polymer, carbon nanotube-reinforced polymer, and self-healing composites. The text describes preparation, processing, and fatigue of lightweight magnesium alloys, as well as an exciting new class of materials-aerogels. This book brings readers to the cutting edge of research in materials for aerospace and aeronautics. It provides an entry point into this field and presents details to stimulate future research. This unique, up-to-date resource offers knowledge to enable practitioners to develop faster, more efficient, and more reliable air- and spacecraft.

T. Ito, International Space University, Strasbourg Central Campus, 1 Rue Jean Dominique Cassini, Parc d'Innovation, 67400 lllkirch-Graffenstaden, France e-mail: ito@isu. isunet. edu M. J. Rycroft, CAESAR Consultancy, 35 Millington Road, Cambridge CB3 9HW, UK e-mail: Michael. J. Rycroft (R)ukgateway. net As Symposium Committee Chair for the 2003 International Space University (ISU) Symposium, and Editor of this Proceedings volume, respectively, we write this introduction. The success of previous ISU symposia suggests that the ISU has developed a unique and winning formula for a novel type of symposium. The characteristics of ISU symposia are that they: * Adopt a broad, and interdisciplinary, perspective * Address all aspects of the subject, ranging from policy, business, organisational, and legal issues to technical and scientific topics * Foster a constructive dialogue among very different sectors of the space community, and * Allow ample time for interactive discussions. The present Symposium is no exception. It considers the very timely topic of space-based systems for global positioning and navigation, ranging from the GPS system developed by the US military to the Russian GLONASS system, and on to the future European Galileo system. Other nations are planning regional augmentation systems.