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Author : Karim Achour
Publisher :
ISBN 13 :
Total Pages : 107 pages
Book Rating : 4.:/5 (78 download)
Download or read book Localisation absolue et dynamique d'un robot mobile dans un univers à deux dimensions written by Karim Achour and published by . This book was released on 1987 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mohamed Jallouli
Publisher :
ISBN 13 :
Total Pages : 354 pages
Book Rating : 4.:/5 (49 download)
Download or read book Localisation absolue d'un robot mobile dans un univers 3D par un système multibalisés written by Mohamed Jallouli and published by . This book was released on 1991 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: APRES AVOIR PRESENTE LES DIFFERENTES METHODES ET TECHNIQUES DE LOCALISATION D'UN MOBILE, NOUS AVONS DEVELOPPE LA SOLUTION RETENUE QUI EST UNE LOCALISATION ABSOLUE PAR TELEMETRIE ULTRASONORE. LE CAS GENERAL 3D EST TRAITE APRES AVOIR ETUDIE DEUX CAS PLUS SIMPLES A 2D. POUR CHACUN DES CAS TRAITES, LES EQUATIONS QUI DETERMINENT LES COORDONNEES DU MOBILE EN FONCTION DES DISTANCES MESUREES SONT DONNEES. UN CALCUL D'INCERTITUDE ET UNE SIMULATION SUR ORDINATEUR ONT PERMIS D'EVALUER LA PRECISION OBTENUE SUR LA POSITION DU MOBILE POUR CHAQUE COORDONNEE DANS LE REPERE CHOISI COMME REFERENCE. DES SOLUTIONS SONT PROPOSEES AFIN D'AMELIORER LA PRECISION DANS CERTAINS CAS. LA DISPOSITION DES BALISES EST DISCUTEE AFIN DE COUVRIR TOUTE LA ZONE D'INTERVENTION DU VEHICULE. UN SYSTEME OMNIDIRECTIONNEL COMPLET DE MESURE DE DISTANCE PAR ULTRASON A ETE DEVELOPPE. LA PORTEE OBTENUE EST DE 15 METRES AVEC UNE PRECISION DE MESURE INFERIEURE A 5 CM. APRES AVOIR EFFECTUE DES EXPERIENCES DE TRANSMISSION. LES ERREURS ONT ETE DETECTEES ET LE TAUX RESIDUEL DE NON RECONNAISSANCE EST DE 1 BALISE POUR 100000 INTERROGEES
Author : ARTURO.. PRECIADORUIZ
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (49 download)
Download or read book SUR LA MODELISATION, LA LOCALISATION ET LA COMMANDE D'UN ROBOT MOBILE written by ARTURO.. PRECIADORUIZ and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: CE TRAVAIL ABORDE TROIS SUJETS DIFFERENTS MAIS COMPLEMENTAIRES SUR LA ROBOTIQUE MOBILE. PREMIEREMENT, NOUS ABORDONS LA MODELISATION DE LA DYNAMIQUE D'UN VEHICULE QUI CONSTITUE UN ARCHETYPE DE ROBOT MOBILE. DEUX EQUATIONS NON LINEAIRES COUPLEES DU DEUXIEME ORDRE MODELISENT LE COMPORTEMENT DE LA VITESSE TANGENTIELLE ET DE LA VITESSE ANGULAIRE DU VEHICULE. UNE TROISIEME EQUATION, ELLE AUSSI NON LINEAIRE, EXPRIME UNE CONTRAINTE SUR LE DEPLACEMENT ET LES FORCES QUI EMPECHENT LE DERAPAGE DU VEHICULE. ENSUITE, NOUS ETUDIONS LE PROBLEME DE LA LOCALISATION DU VEHICULE DANS UN ENVIRONNEMENT POLYGONAL CONNU, A PARTIR DE L'INFORMATION FOURNIE PAR DES CAPTEURS A ULTRASONS. A CETTE FIN, NOUS UTILISONS UNE TECHNIQUE D'ESTIMATION OU LA SEULE HYPOTHESE SUR LA PERTURBATION AFFECTANT LES MESURES EST D'ETRE BORNEE AVEC BORNE CONNUE. OUTRE SON INTERPRETATION GEOMETRIQUE, CETTE TECHNIQUE A L'AVANTAGE DE POUVOIR REJETER LES INFORMATIONS REDONDANTES, ACCELERANT AINSI LA PROCEDURE D'ESTIMATION. D'AUTRE PART, ET AFIN DE METTRE EN CORRESPONDANCE LES OBSERVATIONS REALISEES PAR LES CAPTEURS ET LES OBSTACLES COMPOSANT L'ENVIRONNEMENT, NOUS REPRESENTONS CEUX-CI PAR DES CLASSES D'APPARTENANCE PLUTOT QUE DES SEGMENTS DE DROITE. CETTE REPRESENTATION S'AVERE TRES UTILE LORSQU'ON SOUHAITE PROPAGER UNE INCERTITUDE D'UN REPERE A L'AUTRE ET AFFECTER UNE OBSERVATION QUAND ELLE EST SUSCEPTIBLE D'APPARTENIR A PLUSIEURS CLASSES. LA DERNIERE PARTIE DE CE TRAVAIL EXPOSE UN SCHEMA DE COMMANDE POUR L'ASSERVISSEMENT DU VEHICULE AUTOUR D'UNE TRAJECTOIRE DE REFERENCE. NOUS PROPOSONS UNE LOI DE COMMANDE INSPIREE D'UNE LOI DE COMMANDE DE SUIVI DE PAROIS QUI DECOUPLE LE PROBLEME DE L'ASSERVISSEMENT LATERAL DU VEHICULE ET CELUI DE L'ASSERVISSEMENT LONGITUDINAL PAR RAPPORT A LA TRAJECTOIRE DESIREE. CECI PERMET D'AVOIR DEUX BOUCLES DE COMMANDE INDEPENDANTES POUR CORRIGER CHACUNE DE CES ERREURS
Author : Éric Brassart
Publisher :
ISBN 13 :
Total Pages : 137 pages
Book Rating : 4.:/5 (14 download)
Download or read book LOCALISATION ABSOLUE D'UN ROBOT MOBILE AUTONOME PAR DES BALISES ET UN SYSTEME DE VISION MONOCULAIRE written by Éric Brassart and published by . This book was released on 1995 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: CE TRAVAIL PROPOSE UNE METHODE ORIGINALE POUR LOCALISER UN ROBOT MOBILE AUTONOME DANS UN ENVIRONNEMENT D'INTERIEUR. LA TECHNIQUE DEVELOPPEE EST BASEE SUR L'UTILISATION CONJOINTE DE BALISES ACTIVES AVEC UN SYSTEME DE VISION MONOCULAIRE CE QUI NOUS PERMET DE RECUPERER DEUX TYPES DE DONNEES: - LE CODE IDENTIFICATEUR REPRESENTATIF D'UNE BALISE, - LES POINTS SINGULIERS CARACTERISANT UNE BALISE DANS L'IMAGE. A PARTIR DE CES DEUX INFORMATIONS, PAR TRIANGULATION, NOUS LOCALISONS LE ROBOT MOBILE DANS SON ENVIRONNEMENT D'EVOLUTION. PARALLELEMENT A CE TRAVAIL, NOUS AVONS MENE UNE ETUDE SUR L'ERREUR DE LOCALISATION COMMISE EN FONCTIONS DES DIVERS ELEMENTS CARACTERISANT LA CHAINE DE MESURE. L'ARCHITECTURE ET LES METHODES RETENUES POUR L'EXPERIMENTATION ONT ETE CONDITIONNEES PAR DES OBJECTIFS D'APPLICATIONS INDUSTRIELS.
Author : Claire Clivaz
Publisher :
ISBN 13 : 9789004399655
Total Pages : 0 pages
Book Rating : 4.3/5 (996 download)
Download or read book Ecritures digitales written by Claire Clivaz and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecritures digitales aims to demonstrate how digital writing, as new technology, contributes to the emergence of a reconfigured relationship between the human body and the machines, and how this transition influences the Jewish-Christian textual corpus referred to as "the Scriptures". Ecritures digitales souhaite démontrer de quelle manière l'écriture digitale, en tant que nouvelle technologie, contribue à l'émergence d'une relation innovante entre le corps humain et les machines, et influence le corpus textuel judéo-chrétien désigné comme «les Ecritures».
Author : A. J. Trewavas
Publisher :
ISBN 13 : 0199539545
Total Pages : 305 pages
Book Rating : 4.1/5 (995 download)
Download or read book Plant Behaviour and Intelligence written by A. J. Trewavas and published by . This book was released on 2014 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a convincing argument for the view that whole cells and whole plants growing in competitive wild conditions show aspects of plant behaviour that can be accurately described as 'intelligent'. Trewavas argues that behaviour, like intelligence, must be assessed within the constraints of the anatomical and physiological framework of the organism in question. The fact that plants do not have centralized nervous systems for example, does not exclude intelligent behaviour. Outside the human dimension, culture is thought largely absent and fitness is the biological property of value. Thus, solving environmental problems that threaten to reduce fitness is another way of viewing intelligent behaviour and has a similar meaning to adaptively variable behaviour. The capacity to solve these problems might be considered to vary in different organisms, but variation does not mean absence. By extending these ideas into a book that allows a critical and amplified discussion, the author hopes to raise an awareness of the concept of purposive behaviour in plants.
Author : Chevalier François Le
Publisher : Artech House
ISBN 13 : 9781608071357
Total Pages : 422 pages
Book Rating : 4.0/5 (713 download)
Download or read book Principles of Radar and Sonar Signal Processing written by Chevalier François Le and published by Artech House. This book was released on 2002 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Xinyuan Wang
Publisher : UCL Press
ISBN 13 : 191063462X
Total Pages : 238 pages
Book Rating : 4.9/5 (16 download)
Download or read book Social Media in Industrial China written by Xinyuan Wang and published by UCL Press. This book was released on 2016-09-13 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Life outside the mobile phone is unbearable.’ Lily, 19, factory worker. Described as the biggest migration in human history, an estimated 250 million Chinese people have left their villages in recent decades to live and work in urban areas. Xinyuan Wang spent 15 months living among a community of these migrants in a small factory town in southeast China to track their use of social media. It was here she witnessed a second migration taking place: a movement from offline to online. As Wang argues, this is not simply a convenient analogy but represents the convergence of two phenomena as profound and consequential as each other, where the online world now provides a home for the migrant workers who feel otherwise ‘homeless’. Wang’s fascinating study explores the full range of preconceptions commonly held about Chinese people – their relationship with education, with family, with politics, with ‘home’ – and argues why, for this vast population, it is time to reassess what we think we know about contemporary China and the evolving role of social media.
Author : JOSEPH BRENNER
Publisher : Springer Science & Business Media
ISBN 13 : 1402083750
Total Pages : 378 pages
Book Rating : 4.4/5 (2 download)
Download or read book Logic in Reality written by JOSEPH BRENNER and published by Springer Science & Business Media. This book was released on 2008-05-20 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is both dif?cult and rewarding, affording a new perspective on logic and reality, basically seen in terms of change and stability, being and becoming. Most importantly it exemplifies a mode of doing philosophy of science that seems a welcome departure from the traditional focus on purely analytic arguments. The author approaches ontology, metaphysics, and logic as having offered a number of ways of constructing the description of reality, and aims at deepening their relationships in a new way. Going beyond the mere abstract and formal aspects of logical analysis, he offers a new architecture of logic that sees it as applied not only to the “reasoning processes” belonging to the first disciplinary group – ontology – but also directly concerned with en- ties, events, and phenomena studied by the second one – metaphysics. It is the task of the book to elaborate such a constructive logic, both by offering a lo- cal view of the structure of the reality in general and by proffering a wealth of models able to encompass its implications for science. In turning from the merely formal to the constructive account of logic Brenner overcomes the limitation of logic to linguistic concepts so that it can be not only a logic “of” reality but also “in” that reality which is constitutively characterized by a number of fundamental dualities (observer and observed, self and not-self, internal and external, etc.
Author : Alexander V. Sergienko
Publisher : CRC Press
ISBN 13 : 1420026607
Total Pages : 248 pages
Book Rating : 4.4/5 (2 download)
Download or read book Quantum Communications and Cryptography written by Alexander V. Sergienko and published by CRC Press. This book was released on 2018-10-03 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: All current methods of secure communication such as public-key cryptography can eventually be broken by faster computing. At the interface of physics and computer science lies a powerful solution for secure communications: quantum cryptography. Because eavesdropping changes the physical nature of the information, users in a quantum exchange can easily detect eavesdroppers. This allows for totally secure random key distribution, a central requirement for use of the one-time pad. Since the one-time pad is theoretically proven to be undecipherable, quantum cryptography is the key to perfect secrecy. Quantum Communications and Cryptography is the first comprehensive review of the past, present, and potential developments in this dynamic field. Leading expert contributors from around the world discuss the scientific foundations, experimental and theoretical developments, and cutting-edge technical and engineering advances in quantum communications and cryptography. The book describes the engineering principles and practical implementations in a real-world metropolitan network as well as physical principles and experimental results of such technologies as entanglement swapping and quantum teleportation. It also offers the first detailed treatment of quantum information processing with continuous variables. Technologies include both free-space and fiber-based communications systems along with the necessary protocols and information processing approaches. Bridging the gap between physics and engineering, Quantum Communications and Cryptography supplies a springboard for further developments and breakthroughs in this rapidly growing area.
Author : Denis Alexander
Publisher :
ISBN 13 : 9780857215789
Total Pages : 0 pages
Book Rating : 4.2/5 (157 download)
Download or read book Creation Or Evolution written by Denis Alexander and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Few issues engender so much heat between Christians as the topic of creation. Reasonable, calm, and supremely well informed, this is a book written by someone who is passionate about both science and the Bible. 'I hope,' says Denis Alexander, 'that reading it will encourage you to believe, as I do, that the 'Book of God's Word' and the 'Book of God's Works' can be held firmly together in harmony.' This substantial new edition updates the science, and extends the author's discussion of the theological implications.
Author : Ulrich Flogel
Publisher : CRC Press
ISBN 13 : 1315340933
Total Pages : 426 pages
Book Rating : 4.3/5 (153 download)
Download or read book Fluorine Magnetic Resonance Imaging written by Ulrich Flogel and published by CRC Press. This book was released on 2016-10-26 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past decade, fluorine (19F) magnetic resonance imaging (MRI) has garnered significant scientific interest in the biomedical research community owing to the unique properties of fluorinated materials and the 19F nucleus. Fluorine has an intrinsically sensitive nucleus for MRI. There is negligible endogenous 19F in the body and thus there is no background signal. Fluorine-containing compounds are ideal tracer labels for a wide variety of MRI applications. Moreover, the chemical shift and nuclear relaxation rate can be made responsive to physiology via creative molecular design. This book is an interdisciplinary compendium that details cutting-edge science and medical research in the emerging field of 19F MRI. Edited by Ulrich Flögel and Eric Ahrens, two prominent MRI researchers, this book will appeal to investigators involved in MRI, biomedicine, immunology, pharmacology, probe chemistry, and imaging physics.
Author : Eric Topol
Publisher : Basic Books
ISBN 13 : 0465094473
Total Pages : 386 pages
Book Rating : 4.4/5 (65 download)
Download or read book The Patient Will See You Now written by Eric Topol and published by Basic Books. This book was released on 2016-10-25 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: The essential guide by one of America's leading doctors to how digital technology enables all of us to take charge of our health A trip to the doctor is almost a guarantee of misery. You'll make an appointment months in advance. You'll probably wait for several hours until you hear "the doctor will see you now"-but only for fifteen minutes! Then you'll wait even longer for lab tests, the results of which you'll likely never see, unless they indicate further (and more invasive) tests, most of which will probably prove unnecessary (much like physicals themselves). And your bill will be astronomical. In The Patient Will See You Now, Eric Topol, one of the nation's top physicians, shows why medicine does not have to be that way. Instead, you could use your smartphone to get rapid test results from one drop of blood, monitor your vital signs both day and night, and use an artificially intelligent algorithm to receive a diagnosis without having to see a doctor, all at a small fraction of the cost imposed by our modern healthcare system. The change is powered by what Topol calls medicine's "Gutenberg moment." Much as the printing press took learning out of the hands of a priestly class, the mobile internet is doing the same for medicine, giving us unprecedented control over our healthcare. With smartphones in hand, we are no longer beholden to an impersonal and paternalistic system in which "doctor knows best." Medicine has been digitized, Topol argues; now it will be democratized. Computers will replace physicians for many diagnostic tasks, citizen science will give rise to citizen medicine, and enormous data sets will give us new means to attack conditions that have long been incurable. Massive, open, online medicine, where diagnostics are done by Facebook-like comparisons of medical profiles, will enable real-time, real-world research on massive populations. There's no doubt the path forward will be complicated: the medical establishment will resist these changes, and digitized medicine inevitably raises serious issues surrounding privacy. Nevertheless, the result-better, cheaper, and more human health care-will be worth it. Provocative and engrossing, The Patient Will See You Now is essential reading for anyone who thinks they deserve better health care. That is, for all of us.
Author : Ludwig Mies van der Rohe
Publisher : ABRAMS
ISBN 13 :
Total Pages : 840 pages
Book Rating : 4.:/5 (318 download)
Download or read book Mies in America written by Ludwig Mies van der Rohe and published by ABRAMS. This book was released on 2001 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Mies in America offers readers a deeper immersion into Mies's thought than has been attempted before. Venturing a more complex response than the familiar reading of Mies as a grand master of modernism, these essays retrace the genesis of Mies's design in order to uncover his ambitions, investigate the implicit outlines of the Miesian city, follow the process of designing for America, and look at Mies as a touchstone for contemporary practice."--Jacket.
Author : Emanuele Coccia
Publisher : John Wiley & Sons
ISBN 13 : 1509545689
Total Pages : 180 pages
Book Rating : 4.5/5 (95 download)
Download or read book Metamorphoses written by Emanuele Coccia and published by John Wiley & Sons. This book was released on 2021-06-09 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: We are all fascinated by the mystery of metamorphosis – of the caterpillar that transforms itself into a butterfly. Their bodies have almost nothing in common. They don’t share the same world: one crawls on the ground and the other flutters its wings in the air. And yet they are one and the same life. Emanuele Coccia argues that metamorphosis – the phenomenon that allows the same life to subsist in disparate bodies – is the relationship that binds all species together and unites the living with the non-living. Bacteria, viruses, fungi, plants, animals: they are all one and the same life. Each species, including the human species, is the metamorphosis of all those that preceded it – the same life, cobbling together a new body and a new form in order to exist differently. And there is no opposition between the living and the non-living: life is always the reincarnation of the non-living, a carnival of the telluric substance of a planet – the Earth – that continually draws new faces and new ways of being out of even the smallest particle of its disparate body. By highlighting what joins humans together with other forms of life, Coccia’s brilliant reflection on metamorphosis encourages us to abandon our view of the human species as static and independent and to recognize instead that we are part of a much larger and interconnected form of life.
Author : Daniel R. Headrick
Publisher : Oxford University Press
ISBN 13 : 0199881235
Total Pages : 257 pages
Book Rating : 4.1/5 (998 download)
Download or read book When Information Came of Age written by Daniel R. Headrick and published by Oxford University Press. This book was released on 2000-12-28 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although the Information Age is often described as a new era, a cultural leap springing directly from the invention of modern computers, it is simply the latest step in a long cultural process. Its conceptual roots stretch back to the profound changes that occurred during the Age of Reason and Revolution. When Information Came of Age argues that the key to the present era lies in understanding the systems developed in the eighteenth and early nineteenth centuries to gather, store, transform, display, and communicate information. The book provides a concise and readable survey of the many conceptual developments between 1700 and 1850 and draws connections to leading technologies of today. It documents three breakthroughs in information systems that date to the period: the classification and nomenclature of Linnaeus, the chemical system devised by Lavoisier, and the metric system. It shows how eighteenth-century political arithmeticians and demographers pioneered statistics and graphs as a means for presenting data succinctly and visually. It describes the transformation of cartography from art to science as it incorporated new methods for determining longitude at sea and new data on the measure the arc of the meridian on land. Finally, it looks at the early steps in codifying and transmitting information, including the development of dictionaries, the invention of semaphore telegraphs and naval flag signaling, and the conceptual changes in the use and purpose of postal services. When Information Came of Age shows that like the roots of democracy and industrialization, the foundations of the Information Age were built in the eighteenth and early nineteenth century.
Author : Paolo Prandoni
Publisher : Collection Savoir suisse
ISBN 13 : 2940222207
Total Pages : 392 pages
Book Rating : 4.9/5 (42 download)
Download or read book Signal Processing for Communications written by Paolo Prandoni and published by Collection Savoir suisse. This book was released on 2008-06-17 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: With a novel, less classical approach to the subject, the authors have written a book with the conviction that signal processing should be taught to be fun. The treatment is therefore less focused on the mathematics and more on the conceptual aspects, the idea being to allow the readers to think about the subject at a higher conceptual level, thus building the foundations for more advanced topics. The book remains an engineering text, with the goal of helping students solve real-world problems. In this vein, the last chapter pulls together the individual topics as discussed throughout the book into an in-depth look at the development of an end-to-end communication system, namely, a modem for communicating digital information over an analog channel.
