Download or read book Excitation du sillage d un cylindre par un coulement puls amont written by Claude Barbi (auteur d'une thèse de sciences.) and published by . This book was released on 1981 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Etude exp rimentale du d veloppement du sillage d un cylindre circulaire plac en amont d un corps d arr t written by Mohamed Ahd and published by . This book was released on 1994 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: ON ETUDIE EXPERIMENTALEMENT LE DEVELOPPEMENT DU SILLAGE D'UN CYLINDRE CIRCULAIRE EN AVAL DUQUEL SE TROUVE UN CORPS D'ARRET (CYLINDRIQUE OU PLAN). CE SILLAGE EST TOUT D'ABORD ETUDIE DANS LES CONDITIONS OU CELUI-CI EST LE SIEGE D'UNE ALLEE DE VON KARMAN. LA COMPARAISON DES MESURES EFFECTUEES LORSQUE LE SILLAGE SE DEVELOPPE DANS UN ECOULEMENT UNIFORME ET EN PRESENCE D'UN CORPS D'ARRET MONTRE QUE LA PRESENCE DE CE DERNIER EST RESPONSABLE D'UNE DIMINUTION DE LA FREQUENCE ET DE LA DUREE DE VIE DE L'ALLEE TOURBILLONNAIRE DE VON KARMAN. CETTE DIMINUTION EST D'AUTANT PLUS IMPORTANTE QUE LA DISTANCE ENTRE LE CYLINDRE PRODUISANT LE SILLAGE ET LE CORPS D'ARRET EST FAIBLE, C'EST-A-DIRE QUE LE TAUX D'ETIREMENT DE L'ECOULEMENT DANS LEQUEL LE SILLAGE SE DEVELOPPE EST GRAND. L'ANALYSE DU CHAMP D'ECOULEMENT ENTRE LA REGION DE DISPARITION DE L'ALLEE DE VON KARMAN ET LE CORPS D'ARRET MONTRE QUE CETTE REGION DE L'ESPACE EST OCCUPEE PAR DEUX ROULEAUX CONTRA-ROTATIFS INSTATIONNAIRES SE FORMANT ET SE DETRUISANT ALTERNATIVEMENT. ON RECHERCHE ENSUITE DE MANIERE SYSTEMATIQUE LES CONDITIONS CRITIQUES POUR LESQUELLES DE TELLES STRUCTURES TOURBILLONNAIRES A GRANDE ECHELLE PRENNENT NAISSANCE AU VOISINAGE DU CORPS D'ARRET. CES CONDITIONS CRITIQUES SONT PRECISEES COMME FONCTION DE LA VITESSE D'ATTAQUE DE L'ECOULEMENT SUR LE CYLINDRE PRODUISANT LE SILLAGE, DU DIAMETRE DE CELUI-CI, DE LA DISTANCE SEPARANT LE CYLINDRE DU CORPS D'ARRET ET DE LA GEOMETRIE DE CE DERNIER (CYLINDRE OU PLAN). LES CONDITIONS CRITIQUES OBTENUES POUR LA FORMATION DE STRUCTURES A GRANDE ECHELLE AU VOISINAGE DU CORPS D'ARRET, MONTRENT QUE CELLES-CI SONT TOTALEMENT INDEPENDANTES DE L'EXISTENCE PREALABLE D'UNE ALLEE DE VON KARMAN. LORSQUE CES STRUCTURES EXISTENT, TROIS REGIMES POUR L'ECOULEMENT SONT MIS EN EVIDENCE: I) UN ECOULEMENT CONSTITUE DE DEUX STRUCTURES CONTRA-ROTATIVES STATIONNAIRES DONT LA TAILLE EST UNE FONCTION CROISSANTE DU NOMBRE DE REYNOLDS DU CYLINDRE; II) UN ECOULEMENT INSTATIONNAIRE OU LES DEUX STRUCTURES SE FORMENT, ONT UNE PHASE DE CROISSANCE, PUIS SE DETRUISENT ALTERNATIVEMENT DE MANIERE PERIODIQUE; III) UN ECOULEMENT INSTATIONNAIRE OU LE CYCLE PRECEDENT DEVIENT ALEATOIRE. CES RESULTATS SONT ANALYSES DU POINT DE VUE DES THEORIES EXISTANTES SUR L'AMPLIFICATION (OU L'AMORTISSEMENT) D'UNE PERTURBATION DANS UN ECOULEMENT A POINT D'ARRET

Download or read book Satellite Situation Report written by Goddard Space Flight Center. Office of Public Affairs and published by . This book was released on 1977 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Methods of Detecting Exoplanets written by Valerio Bozza and published by Springer. This book was released on 2016-04-12 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, renowned scientists describe the various techniques used to detect and characterize extrasolar planets, or exoplanets, with a view to unveiling the “tricks of the trade” of planet detection to a wider community. The radial velocity method, transit method, microlensing method, and direct imaging method are all clearly explained, drawing attention to their advantages and limitations and highlighting the complementary roles that they can play in improving the characterization of exoplanets’ physical and orbital properties. By probing the planetary frequency at different distances and in different conditions, these techniques are helping astrophysicists to reconstruct the scenarios of planetary formation and to give robust scientific answers to questions regarding the frequency of potentially habitable worlds. Twenty years have passed since the discovery of a Jupiter-mass companion to a main sequence star other than the Sun, heralding the birth of extrasolar planetary research; this book fully conveys the exciting progress that has been achieved during the intervening period.

Download or read book Hypersonic Flow Theory written by Wallace Hayes and published by Elsevier. This book was released on 2012-12-02 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hypersonic Flow Theory presents the fundamentals of fluid mechanics, focusing on the hypersonic flow theory and approaches in theoretical aerodynamics. This book discusses the assumptions underlying hypersonic flow theory, unified supersonic-hypersonic similitude, two-dimensional and axisymmetric bodies, and circular cylinder. The constant-streamtube-area approximation, streamtube-continuity methods, and tangent-wedge and tangent-cone are also deliberated. This text likewise covers the similar laminar boundary layer solutions, bluntness induced interactions on slender bodies, and free molecule transfer theory. The dynamics of hypersonic flight or hypersonic wing theory, magnetohydrodynamic theory, or any developments involving treatment of the Boltzmann equation are not included. This publication is intended for hypersonic aerodynamicists, students, and researchers conducting work on the hypersonic flow phenomena.

Download or read book Historical Dictionary of Iran written by John Henry Lorentz and published by Historical Dictionaries of Asia, Oceania, and the Middle East. This book was released on 2007 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides an overview of specific events, movements, people, political and social groups, places, trends, and chronology. Allows for considerable exploration of a number of historical and contemporary topics and issues. The modern period, defined as 1800-present, is covered extensively.

Download or read book Jules Verne written by William Butcher and published by Da Capo Press. This book was released on 2007-04-24 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Highly readable narrative of a writing phenomenon. The world's most translated best-selling writer.

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.

Download or read book Jules Verne written by Herbert R. Lottman and published by St Martins Press. This book was released on 1996 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: Draws on unpublished correspondence between the renowned science fiction author and various friends and family members, and recreates Verne's life from his youth in Nantes to his self-imposed exile outside of Paris as an adult

Download or read book The Astronomical Revolution written by Alexandre Koyre and published by Routledge. This book was released on 2013-04-15 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Originally published in English in 1973. This volume traces the development of the revolution which so drastically altered man’s view of the universe in the sixteenth and seventeenth centuries. The "astronomical revolution" was accomplished in three stages, each linked with the work of one man. With Copernicus, the sun became the centre of the universe. With Kepler, celestial dynamics replaced the kinematics of circles and spheres used by Copernicus. With Borelli the unification of celestial and terrestrial physics was completed by abandonment of the circle in favour the straight line to infinity.

Download or read book Space Debris written by Heiner Klinkrad and published by Springer Science & Business Media. This book was released on 2006-09-01 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: The future evolution of the debris environment will be forecast on the basis of traffic models and possible hazard mitigation practices. The text shows how large trackable objects will have re-entry pinpointed and predictions made on related risk assessment for possible ground impact. Models will also be described for meteoroids which are also a prevailing risk.

Download or read book Historical Dictionary of Pakistan written by Shahid Javed Burki and published by . This book was released on 1999 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pakistan is unlike most other countries in the emerging world. It is one of the two nations – the other being the state of Israel – founded on the basis of religion. Although it was created to provide a homeland for the Muslim community of British India, in its original form it was able to accommodate only about half of the people of Islamic faith who lived in the subcontinent. Pakistan’s birth in 1947 resulted in one of the largest movements of people in human history when some 14 million people left their homes, with 8 million Muslims leaving India for what is now Pakistan and 6 million Hindus and Sikhs moving in the opposite direction. This was the first large-scale incidence of ethnic cleansing the world was to witness. --

Download or read book T P s Weekly written by Thomas Power O'Connor and published by . This book was released on 1914 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cambridge Yearbook of European Legal Studies Vol 13 2010 2011 written by Catherine Barnard and published by Bloomsbury Publishing. This book was released on 2011-12-15 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Cambridge Yearbook of European Legal Studies provides a forum for the scrutiny of significant issues in EU Law, the law of the European Convention on Human Rights, and Comparative Law with a 'European' dimension, and particularly those issues which have come to the fore during the year preceding publication. The contributions appearing in the collection are commissioned by the Centre for European Legal Studies (CELS) Cambridge, a research centre in the Law Faculty of the University of Cambridge specialising in European legal issues. The papers presented are at the cutting edge of the fields which they address, and reflect the views of recognised experts drawn from the University world, legal practice, and the institutions of both the EU and its Member States. Inclusion of the comparative dimension brings a fresh perspective to the study of European law, and highlights the effects of globalisation of the law more generally, and the resulting cross fertilisation of norms and ideas that has occurred among previously sovereign and separate legal orders. The Cambridge Yearbook of European Legal Studies is an invaluable resource for those wishing to keep pace with legal developments in the fast moving world of European integration. INDIVIDUAL CHAPTERS Please click on the link below to purchase individual chapters from Volume 13 through Ingenta Connect: www.ingentaconnect.com SUBSCRIPTION TO SERIES To place an annual online subscription or a print standing order through Hart Publishing please click on the link below. Please note that any customers who have a standing order for the printed volumes will now be entitled to free online access. www.hartjournals.co.uk/cyels/subs Editorial Advisory Board: Albertina Albors-Llorens, John Bell, Alan Dashwood, Simon Deakin, David Feldman, Richard Fentiman, Angus Johnston, John Spencer Founding Editors: Alan Dashwood and Angela Ward Ius Commune Prize 2012 Alexandre Saydé wrote Chapter 15 in this volume entitled: 'One Law, Two Competitions: An Enquiry into the Contradictions of Free Movement Law' and we are delighted to announce that he has been awarded the Ius Commune Prize 2012.

Download or read book The Open Work written by Umberto Eco and published by Harvard University Press. This book was released on 1989 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is significant for its concept of "openness"--the artist's decision to leave arrangements of some constituents of a work to the public or to chance--and for its anticipation of two themes of literary theory: the element of multiplicity and plurality in art, and the insistence on literary response as an interaction between reader and text.

Download or read book Socialism Perestroika and the Dilemmas of Soviet Economic Reform written by John E Tedstrom and published by Routledge. This book was released on 2021-12-13 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights that Soviet economic planners and politicians must come to recognize the need to make fundamental changes, not simply incremental refinements, in the failing Soviet system. It examines the dynamics of the process of perestroika and the complexity of individual economic issues.

Download or read book The Ladybird Illustrated written by D H Lawrence and published by Independently Published. This book was released on 2021-01-22 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Ladybird is a long tale or novella by D. H. Lawrence.It was first drafted in 1915 as a short story entitled The Thimble. Lawrence rewrote and extended it under a new title in December 1921 and sent the final version to his English agent on 9 January 1922. It was collected with two other tales, The Captain's Doll and The Fox, and the three novellas were then published in London by Martin Secker in March 1923 under the title The Ladybird and in New York by Thomas Seltzer as The Captain's Doll in April 1923."