485 résultats
1997x-0792343786Kluwer Academic Pub 1997. Hardcover. New. 394 pages. 9.75x6.75x1.00 inches. Kluwer Academic Pub hardcover
1980AE-44Sydney Australia: Lansdowne Press 1980. Detailed text contains a lavishly illustrated factual account of the Westland Widgeon monoplane "Kookaburra" which was forced to land in the Tanami desert in 1929 and the short lives and fate of the pioneer Australian aviators who flew the single-engine plane. 130 pgs. Dustjacket in mylar. Minimal shelfwear. First Edition. Hard Cover. Fine/Fine. 4to - over 9¾" - 12" tall. Lansdowne Press Hardcover
192647142Paris Gauthier-Villars et Cie 1926. 4to. Without wrappers. In: "Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences" Tome 183 No 1. Pp. 5- 100. Entire issue offered. Brillouin's paper: pp. 24-26. <br/><br/><em>First appearance of Brillouin's importent paper in which he introduced the WKB-method in quantum Mechanics."In 1925 Brillouin was the only French theoretician to react competently to Werner Heisenberg’s new matrix mechanics. In two papers published in 1926 he contributed to the exploration of the mathematical content of Heisenberg’s theory. Brillouin’s first contribution in this field was important the paper offered. Through a new method of semiclassical approximation he discovered the relation between Schrodinger’s mechanics and the quantum theory of Niels Bohr and Sommerfeld. Presumably inspired by de Broglie’s early analogies between mechanics and optics he found this approximation as the quantum mechanical countet of the approximation. In this procedure stationary solutions of the Schrödinger equation are sought in the form eiS/h as in the eikonal approximation of optics. In the first approximation h small S must be a solution of the Hamilton-Jacobi equation of classical mechanics and the Bohr-Sommerfeld conditions S = 2pnh on a closed trajectory must be satisfied for the W function to be defined and singlevalued in all space. Subsequent corrections are proportional to successive powers of h. They intermix the various Bohr trajectories. thereby reintroducing the complex interplay of quantum states found in matrix mechanics This method published by Brillouin in July 1926 - anticipated by Harold Jeffreys in 1923 in a purely mathematical context reinvented by Gregor Wentzel in September 1926. and perfected by Hendrik Kramers in November 1926 - is now called the J BWK method and is widely used in many quantum mechanical problems."DSB.See also Max Jammer "The Conceptual development of Quantum Mechanics" pp. 277 ff. </em> unknown
1992Q-1559180838Lindsay Publications Inc 1992. Paperback. New. In shrink wrap. Looks like an interesting title! Lindsay Publications Inc paperback
A9789058095008Paperback / softback. New. This book presents the complete list of delegates of all the member countries arranged in alphabetical order of the 2001 International Society for Soil Mechanics and Geotechnical Engineering. paperback
A9781138468580Hardback. New. hardcover
2002__9058095002Taylor & Francis 2002. Hardcover. New. 1st edition. 312 pages. 8.27x5.83x0.71 inches. Taylor & Francis hardcover
2002SONG9058095002CRC Press 2002-01-01. 1. paperback. Used: Good. 0.00x0.00x0.00. Buy with confidence. Excellent Customer Service & Return policy. CRC Press paperback
A9781015653221Hardback. New. hardcover
A9781016177078Hardback. New. hardcover
B9781015653221Hardback. New. hardcover
B9781016177078Hardback. New. hardcover
SB05D-01710Popular Mechanics Company. Used - Good. Good condition. Lot of 12 Popular Mechanics Magazines ranging 1953-1962. Slightly dampstained. Writing inside. In polypropylene bag. engineering technology periodicals NOT AVAILABLE FOR SHIPMENT OUTSIDE OF THE UNITED STATES. Popular Mechanics Company unknown
SB05D-01849Popular Mechanics Company. Used - Good. Good condition. Lot of 13 Popular Mechanics Magazines ranging 1954-1961. Slightly dampstained. In polypropylene bag. engineering technology periodicals NOT AVAILABLE FOR SHIPMENT OUTSIDE OF THE UNITED STATES. Popular Mechanics Company unknown
1982AE-23HoustonTx.: NASA 1982. Comprehensive text contains nearly 500 detailed technical papers from leading international scientists presented in the following topics: geochemistry geophysics meteorites petrology photogeology and astronomy. Label remnants on lower spine stamp on title page. Top corner of title pg. clipped by prior owner. Minor shelfwear. Soft Cover. Good. 4to - over 9¾" - 12" tall. Ex-Professional Library. NASA Paperback
1514201879.Gpaperback. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book. paperback
1965AE-94Oxford U.K.: Pergamon Press 1965. Classic comprehensive text presents detailed topics covering manoeuvre loads; design philosophy; atmospheric and ground environment; measured symmetrical manoeuvres; temperature and airspeed in flight; theoretical anaysis of turbulence; aircraft loads in atmospheric turbulence; noise turbulence; ground loads; etc. 350 pgs. Illustrated. Prior owner's name on outer edge; small stamp on front endpaper. Slight scuff mark on spine. Gilt spine and front cover. Minimal shelfwear. First Edition. Hard Cover. Very Good/ . 8vo - over 7¾" - 9¾" tall. Ex-Professional Library. Pergamon Press Hardcover
BN106025Transvalor - Presses des mines. Softcover. Manuel de mécanique des roches - Tome III: Retours d'expériences. Génie minier et pétrolier. <br/><br/>Manuel de mécanique des roches - Tome III: Retours d'expériences. Génie minier et pétrolier. Transvalor - Presses des mines paperback
1986AE-8Berlin-Heidelberg: Springer-Verlag 1986. Comprehensive classic text presents detailed topics covering microgravity material sciences; non-equilibrium phenomena; spaceborn furnace configurations and their characteristics; fluid experiments; containerless processing technology; metals and composites; binary systems with miscibility gap in the liquid state; crystal growth; fluid dynamics; thermodynamic properties; glass formation and crystallization; processing glass in low gravity; electrophoresis; phase partitioning; etc. 496 pgs. Illustrated. Publisher's label on front endpaper. Minimal shelfwear. First Edition. Hard Cover. Very Good. 8vo - over 7¾" - 9¾" tall. Springer-Verlag Hardcover
192847068Berlin Weidmannsche Buchhandlung 1928. 8vo. Full cloth but spine gone. In: "Nachrichten von der Gesellschaft der Wissenschaften zu Göttingen aus dem Jahre 1927". 4469 pp. Von Neumann's papers: pp. 1-57 pp. 245-272 a. pp. 273-291. Internally clean and fine. <br/><br/><em>First printing of von Neumann's importent papers in which he gave a mathematically precise formulation of the foundation of Quantum MeChanics basing the theory on the use of Hilbert spaces."He von Neumann developed between 1927 and 1929 a new mathematical framework of the theory subsequently proved to be the most suitable formalism of nonrelativistic quantum mechanics as we use it today as well as of its extensions the relativistic quantum mechanics of partcles and the quantum theory of fields."Max Jammer "The Conceptual Development og Quantum Mechanics" pp.314-15"Von Neumann’s most famous work in theoretical physics is his axiomatization of quantum mechanics. When he began work in that field in 1927 the methods used by its founders were hard to formulate in precise mathematical terms; "operator" on "functions" were handled without much consideration of their domain or definition to their topological properties: and it was blithely assumed that such "operators" when self-adjoint could always be "diagonalized" as in th finite dimensional case at the expense of introducing "Dirac functions" as "eigenvectors." Von Neumann showed that mathematical rigor could be restored by taking as basic axioms the assumptions that the states of a physical system were poinds of a Hilbert space and that the measurable quantities were Hermitian generally unbounded operators densely efined in that space. This formalism. the practical use of which became available after von Neumann had developed the spectral theory of unbounded Hermitian operators 1929 has survived subsequent developments of quantum mechanics and is still the basisi of non relativistic quantum theory; with the introduction of the theory of distributions it has even become possible to interpret its results in a way similar to Dirac’s original intuition."DSB. </em> hardcover
93544MC GRAW HILL MEX. New. MC GRAW HILL MEX. unknown
1893S13228Paris: 1893. 1893. Spine title: Arts & Metiers :: Mecanique I. Three books in one possible 2nd volume not known but implied by the spine title. 4to. 208; 324; 542 pp. Numerous mathematical diagrams. Facsimile of original handwritten manuscript. Early quarter maroon calf backed red & black marbled boards; extremities rubbed. Occasional minor tears some repaired foxing. Ownership signature of Garde. Very good. THE ENTIRE TEXT IS PRINTED IN MANUSCRIPT FACSIMILE. No person or organization shows their name as being responsible for this deeply scholarly and detailed work on all facets of analytical mechanics. Some possible clues for its origin might possibly be a part of the history of the Ecole Nationale de Cluny Descartes's system of mechanical force or possibly the work of Alfred Flamant engineer & professor at l'Ecole Nationale des Ponts et Chaussees & l'Ecole Centrale who wrote a treatise Mecanique Generale 1888. I could not find a match for the text to identify this item but it is for someone else to discover. See possibly: H. Carteron "L'idee de la force mecanique dans le systeme de Descartes." Revue Philosophique de la France et de l'Etranger T. 94 JUILLET A DECEMBRE 1922 pp. 483-511. 1893[?]. hardcover
1999__9058091074Aa Balkema 1999. Hardcover. New. 1st edition. 760 pages. 9.00x6.25x1.50 inches. Aa Balkema hardcover