3 605 résultats
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Hardcover in-12 (16x11), 276 pp., figures et tableaux in texte, cartonnage décoré de l'éditeur. Bon etat. [BU-11]
2004réf. x-1574981560Amer Ceramic Society 2004. Paperback. New. volume 141 edition. 478 pages. 8.75x6.00x1.00 inches. Amer Ceramic Society paperback
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réf. 72996Bruxelles, Editions Techniques Bieleveld, sans date, in 8° broché, 249 pages ; très nombreuses figures.
1986réf. yam07853 forts tomes in-4 en bon état T1: 1835-1950 T2: 1950-1987 T3: Portes d'accès Peintures Freins
1840réf. GITb494Paris Amédée Bédelet sd v 1840. In-8 304pp. Cartonnage éditeur toile bleu nuit, dos lisse orné d'attributs de métiers et d'une locomotive dorés, beau décor allégorique et mosaïqué sur le 1er plat, ornement doré et mosaïqué sur le 2e dans un encadrement de filets et volutes à froid, tranches dorées (Haarhaus). Orné de 12 beaux dessins hors texte en 2 teintes par Héloïse Lenoir, frontispice allégorique compris. Bel exemplaire complet de toutes ses illustrations.
1924réf. 47166Corning N.Y. and Menasha Wisc. The Physical Review 1924. Royal8vo. Full buckram. Gilt lettering to spine. A stamp to top of titlepage and to front free endpaper. In: "The Physical Review. A Journal of Experimental and theoretical Physics" Vol. 24 Second Series. V704 pp. textillustr. Van Vleck's papers: pp. 330-346 a. pp. 347-365. Internally clean and fine. First appearance of Van Vleck's two importent papers in which he clarifies and extends the Principle of Correspondence."Van Vleck made his greatest contribution to the old quantum theory in 1924 when he conceived his correspondence principle for absorption. He demonstrated that in the limit of high quantum numbers there would be a correspondence between absorption by classical multiply periodic systems and by their quantum analogues. His proof depended on interpreting net absorption in the quantum theory as the difference between gross absorption and stimulated emission of radiation an interpretation prompted by a remark of Breit’s. Van Vleck was particularly pleased that his classical theory reproduced the quantum result without the need for stimulated emission which he referred to as "negative absorption." DSB."Van Vleck’s theory of absorption by multiply periodic systems was consistent with the newly derived Kramers theory of dispersion and it convinced Bohr that his correspondence principle applied not only to emission but also to absorption. Further Van Vleck’s 1924 calculation made use of several of the ideas that Werner Heisenberg used in his matrix mechanics a year later. Van Vleck’s work however did not lead in the direction of matrix mechanics. His intent was to explain quantum phenomena especially "negative absorption" in classical terms rather than to devise an internally consistent quantum theory." DSB.In 1977 he shared the Nobel Prize with Philip Anderson and N. F. Mott.Van der Waerden "Sources of Quantum Mechanics" pp. 203 ff. hardcover
