Download or read book International Reference Guide to Space Launch Systems written by Steven J. Isakowitz and published by AIAA (American Institute of Aeronautics & Astronautics). This book was released on 2004 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt: This bestselling reference guide contains the most reliable and comprehensive material on launch programs in Brazil, China, Europe, India, Israel, and the United States. Packed with illustrations and figures, this edition has been updated and expanded, and offers a quick and easy data retrieval source for policy makers, planners, engineers, launch buyers, and students.
Download or read book Space Time Reference Systems written by Michael Soffel and published by Springer Science & Business Media. This book was released on 2012-10-18 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: The high accuracy of modern astronomical spatial-temporal reference systems has made them considerably complex. This book offers a comprehensive overview of such systems. It begins with a discussion of ‘The Problem of Time’, including recent developments in the art of clock making (e.g., optical clocks) and various time scales. The authors address the definitions and realization of spatial coordinates by reference to remote celestial objects such as quasars. After an extensive treatment of classical equinox-based coordinates, new paradigms for setting up a celestial reference system are introduced that no longer refer to the translational and rotational motion of the Earth. The role of relativity in the definition and realization of such systems is clarified. The topics presented in this book are complemented by exercises (with solutions). The authors offer a series of files, written in Maple, a standard computer algebra system, to help readers get a feel for the various models and orders of magnitude. Beyond astrometry, the main fields of application of high-precision astronomical spatial-temporal reference systems and frames are navigation (GPS, interplanetary spacecraft navigation) and global geodynamics, which provide a high-precision Celestial Reference System and its link to any terrestrial spatial-temporal reference system. Mankind’s urgent environmental questions can only be answered in the context of appropriate reference systems in which both aspects, space and time, are realized with a sufficiently high level of accuracy. This book addresses all those interested in high-precision reference systems and the various techniques (GPS, Very Long Baseline Interferometry, Satellite Laser Ranging, Lunar Laser Ranging) necessary for their realization, including the production and dissemination of time signals.
Download or read book Reference Systems written by International Astronomical Union. Colloquium and published by . This book was released on 1991 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Intelligent Systems written by Crina Grosan and published by Springer Science & Business Media. This book was released on 2011-07-29 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computational intelligence is a well-established paradigm, where new theories with a sound biological understanding have been evolving. The current experimental systems have many of the characteristics of biological computers (brains in other words) and are beginning to be built to perform a variety of tasks that are difficult or impossible to do with conventional computers. As evident, the ultimate achievement in this field would be to mimic or exceed human cognitive capabilities including reasoning, recognition, creativity, emotions, understanding, learning and so on. This book comprising of 17 chapters offers a step-by-step introduction (in a chronological order) to the various modern computational intelligence tools used in practical problem solving. Staring with different search techniques including informed and uninformed search, heuristic search, minmax, alpha-beta pruning methods, evolutionary algorithms and swarm intelligent techniques; the authors illustrate the design of knowledge-based systems and advanced expert systems, which incorporate uncertainty and fuzziness. Machine learning algorithms including decision trees and artificial neural networks are presented and finally the fundamentals of hybrid intelligent systems are also depicted. Academics, scientists as well as engineers engaged in research, development and application of computational intelligence techniques, machine learning and data mining would find the comprehensive coverage of this book invaluable.
Download or read book Vertical Reference Systems written by Hermann Drewes and published by Springer Science & Business Media. This book was released on 2002-08-06 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book contains the papers presented at the IAG Symposium on Vertical Reference Systems held in Cartagena, Colombia, in February 2001. It covers the status report of existing height reference systems and the latest steps towards the establishment of a unified vertical reference system. Classical and modern height determination techniques are included as well as the determination of height reference surfaces like sea level and geoid. Emphasis is also given to the variations of the reference systems with time, i.e., sea level changes and geodynamic deformations.
Download or read book A Typology of Reference Systems written by Zygmunt Frajzyngier and published by Oxford University Press. This book was released on 2023-01-20 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume offers a typology of reference systems across a range of typologically and genetically distinct languages, including English, Mandarin, non-literary varieties of Russian, Chadic languages, and a number of understudied Sino-Russian idiolects. The term 'reference system' designates all functions within the grammatical system of a given language that indicate whether and how the addressee(s) should identify the referents of participants in the proposition. In this book, Zygmunt Frajzyngier explores the major functional domains, subdomains, and individual functions that determine the identification of participants in a given language, and outlines which are the most and least frequently found crosslinguistically. The findings reveal that bare nouns, pronouns, demonstratives and determiners, and coding on the verb ('agreement') have different functions in different languages. The concluding chapters offer explanations for these differences and explore their implications for the theory and methodology of syntactic analysis, for linguistic typology, and for syntactic theories.
Download or read book Vertical Reference Systems written by Hermann Drewes and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Symposium on Vertical Reference Systems (VeReS) was initiated on the occasion of the XXII General Assembly of the International Union of Geodesy and Geophysics (IUGG), Birmingham 1999, by Professor Dr. Wolfgang Torge, Past President of the International Association of Geodesy (lAG) and representative of lAG to the Pan-American Institute of Geography and History (PAIGH). The idea was to organise another joint symposium of lAG and PAIGH like the previous one held during the XX IUGG General Assembly at Vienna, Austria, in 1991. Good reasons for such a joint symposium were the great success and the ongoing activities of the Project on the South American Geocentric Reference System (Sistema de Referencia Geocentrico para America del Sur, SIRGAS) being sponsored by lAG and PAIGH since 1993. The SIR GAS Project (Working Group I) had presented a continental South American reference frame of 58 stations during the lAG Scientific Assembly at Rio de Janeiro, in 1997. This reference frame was already adopted by several South American countries as the basis for their new national horizontal geodetic datums (SIRGAS Working Group II). To overcome the problems of the heterogeneous vertical (height) datums between the individual countries, SIRGAS had installed its Working Group III "Vertical Datum" in 1997. As the discussion on the unification of vertical reference systems is also going on in lAG and other bodies of science and practice, it was decided to dedicate the symposium to this topic.
Download or read book Space Time Reference Systems written by Michael Soffel and published by Springer Science & Business Media. This book was released on 2012-10-19 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: The high accuracy of modern astronomical spatial-temporal reference systems has made them considerably complex. This book offers a comprehensive overview of such systems. It begins with a discussion of ‘The Problem of Time’, including recent developments in the art of clock making (e.g., optical clocks) and various time scales. The authors address the definitions and realization of spatial coordinates by reference to remote celestial objects such as quasars. After an extensive treatment of classical equinox-based coordinates, new paradigms for setting up a celestial reference system are introduced that no longer refer to the translational and rotational motion of the Earth. The role of relativity in the definition and realization of such systems is clarified. The topics presented in this book are complemented by exercises (with solutions). The authors offer a series of files, written in Maple, a standard computer algebra system, to help readers get a feel for the various models and orders of magnitude. Beyond astrometry, the main fields of application of high-precision astronomical spatial-temporal reference systems and frames are navigation (GPS, interplanetary spacecraft navigation) and global geodynamics, which provide a high-precision Celestial Reference System and its link to any terrestrial spatial-temporal reference system. Mankind’s urgent environmental questions can only be answered in the context of appropriate reference systems in which both aspects, space and time, are realized with a sufficiently high level of accuracy. This book addresses all those interested in high-precision reference systems and the various techniques (GPS, Very Long Baseline Interferometry, Satellite Laser Ranging, Lunar Laser Ranging) necessary for their realization, including the production and dissemination of time signals.
Download or read book Guide to Biometric Reference Systems and Performance Evaluation written by Dijana Petrovska-Delacrétaz and published by Springer Science & Business Media. This book was released on 2009-04-05 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biometrics has moved from using fingerprints to using many methods of assessing human physical and behavioral traits. This guide introduces a new performance evaluation framework designed to offer full coverage of performance evaluation of biometric systems.
Download or read book Development of Classical and Modern Geodetic Reference Systems of Albania written by Bilbil Nurçe and published by Springer Nature. This book was released on 2023-03-08 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses the problems of mathematical relations between global and classical coordinate references from the practical applications point of view. It presents a large cartographic and numerical information set, which provides great values for practical and academical use based on the classical Albanian coordinative reference (ALB1986/ALB1987). This information is reflected from the positional point of view in the new modern Albanian satellite reference ALBPOS (Albanian Positioning System) or ALBCORS (Albanian Continuous Operation Reference Stations System). The main purpose of this Monograph is to summarize coordinative references applied in Albania in different periods, both classical and modern. Relevant transformation models between traditional/classical reference ALB1986 / ALB1987 and GNSS satellite reference are presented. The book furthermore recommends the mathematical models of the relationship in plan and height, between the Albanian classical reference and the global/European coordinate references (ITRF, EUREF). It serves to professionals involved in fundamental geodetic works as well as all working with GNSS or developing GIS applications.
Download or read book Spheroidal Geodesics Reference Systems Local Geometry written by Paul D. Thomas and published by . This book was released on 1970 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Introduction to Geodetic Reference Systems for Land Surveys written by J. Paul Guyer, P.E., R.A. and published by Guyer Partners. This book was released on 2018-02-26 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introductory technical guidance for civil engineers and land surveyors interested in geodetic reference systems for land surveys. Here is what is discussed: 1. GEODETIC REFERENCE SYSTEMS 2. HORIZONTAL COORDINATE SYSTEMS 3. VERTICAL REFERENCE SYSTEMS.
Download or read book Optimum Binary FSK for Transmitted Reference Systems Over Rayleigh Fading Channels written by Neil J. Bershad and published by . This book was released on 1965 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is well known that in communicating over randomly time-varying channels, a receiver which performs a channel measurement can make a better decision than one that does not. It is shown that a channel-measuring system improves system performance even when the channel characteristics are fixed only during the present message interval. The randomly time-varying channel studied is that of a Rayleigh fading medium with independently fading mark and space channels whose fading is fixed over one baud interval but is independent from baud to baud. The transmission system is a modified frequency shift keying (FSK) system such that during a portion of a baud interval the mark and space frequencies are always transmitted so as to act as reference signals. For the above system, the following characteristics have been established: (a) Optimum receiver configuration, (b) Optimum ratio alpha of information energy to total signal energy as a function of total available signal-to-noise ratio for a single fading channel, (c) Asymptotic optimum alpha for an M-diversity channel, (d) Error probabilities for (b) and asymptotic error probabilities for (c) for alpha opt as a function of total signal-to-noise ratio. The asymptotic results show that by using reference techniques the order of diversity is effectively doubled. (Author).
Download or read book Optimal Reference Shaping for Dynamical Systems written by Tarunraj Singh and published by CRC Press. This book was released on 2009-10-28 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: Integrating feedforward control with feedback control can significantly improve the performance of control systems compared to using feedback control alone. Focusing on feedforward control techniques, Optimal Reference Shaping for Dynamical Systems: Theory and Applications lucidly covers the various algorithms for attenuating residual oscillations
Download or read book Reference Coordinate Systems for Earth Dynamics written by E.M. Gaposchkin and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the 56th Colloquium of the International Astronomical Union held in Warsaw, Poland, September 8-12, 1980
Download or read book Reference Modeling for Business Systems Analysis written by Fettke, Peter and published by IGI Global. This book was released on 2006-10-31 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book provides insights into state-of-the-art modeling languages and methods used for reference modeling. A reference model provides a blueprint for information systems development and analysis. Well-established reference models for industrial, retail and other industries are described"--Provided by publisher.
Download or read book Managing Reference Data in Enterprise Databases written by Malcolm Chisholm and published by Morgan Kaufmann. This book was released on 2001 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This is a great book! I have to admit I wasn't enthusiastic about the idea of a book with such a narrow topic initially, but, frankly, it's the first professional book I've read page to page in one sitting in a long time. It should be of interest to DBAs, data architects and modelers, programmers who have to write database programs, and yes, even managers. This book is a winner." - Karen Watterson, Editor SQL Server Professional "Malcolm Chisholm has produced a very readable book. It is well-written and with excellent examples. It will, I am sure, become the Reference Book on Reference Data." - Clive Finkelstein, "Father" of Information Engineering, Managing Director, Information Engineering Services Pty Ltd Reference data plays a key role in your business databases and must be free from defects of any kind. So why is it so hard to find information on this critical topic? Recognizing the dangers of taking reference data for granted, Managing Reference Data in Enterprise Databases gives you precisely what you've been seeking: A complete guide to the implementation and management of reference data of all kinds. This book begins with a thorough definition of reference data, then proceeds with a detailed examination of all reference data issues, fully describing uses, common difficulties, and practical solutions. Whether you're a database manager, architect, administrator, programmer, or analyst, be sure to keep this easy-to-use reference close at hand. Features Solves special challenges associated with maintaining reference data. Addresses a wide range of reference data issues, including acronyms, redundancy, mapping, life cycles, multiple languages, and querying. Describes how reference data interacts with other system components, what problems can arise, and how to mitigate these problems. Offers examples of standard reference data types and matrices for evaluating management methods. Provides a number of standard reference data tables and more specialized material to help you deal with reference data, via a companion Web site
