Contribution à l'étude de la propagation des ondes lumineuses dans l'atmosphère PDF Download
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Author: Jacques Fournet-Fayard
Publisher:
ISBN:
Category :
Languages : fr
Pages : 180
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Book Description
Author: Jacques Fournet-Fayard
Publisher:
ISBN:
Category :
Languages : fr
Pages : 180
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Author: Jean Nakache
Publisher:
ISBN:
Category :
Languages : fr
Pages : 154
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Author: Magali Beynet
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ISBN:
Category :
Languages : fr
Pages : 78
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Author: Jean Billard
Publisher:
ISBN:
Category :
Languages : fr
Pages : 460
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Author: Henri Dessens
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Category :
Languages : fr
Pages :
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Author: Michel Tixier
Publisher:
ISBN:
Category :
Languages : fr
Pages : 195
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Book Description
MODIFICATIONS IMPORTANTES DU SPECTRE ET DE L'AMPLITUDE DE L'IMPULSION RADIOELECTRIQUE TBF EMISE PAR L'ECLAIR QUAND ELLE SE PROPAGE DANS LE GUIDE SUBIONOSPHERIQUE. EFFETS QUI EN RESULTENT SUR L'OCCURRENCE ET LE SPECTRE DES DIFFERENTS TYPES DE SIFFLEMENTS RECUS SIMULTANEMENT A BORD DES SATELLITES AU-DESSUS DE L'EUROPE, LORSQUE L'ENERGIE TRAVERSE L'IONOSPHERE. DIFFERENTS MODES DE PROPAGATION DE L'ENERGIE DANS LA MAGNETOSPHERE.
Author: Maher Al Naboulsi
Publisher:
ISBN:
Category :
Languages : fr
Pages : 187
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Book Description
L'objet de ce travail de thèse porte sur l'étude de l'atténuation du rayonnement lumineux en présence de brouillard dans le cas des liaisons optiques atmosphériques (LOA). Un modèle théorique simple a été établi. Il permet de prédire l'atténuation et la disponibilité d'une liaison LOA en fonction de la visibilité et de la longueur d'onde utilisée. Ce modèle a été intégré à un logiciel développé par FT R&D. Pour compléter ces études théoriques des mesures de transmissions en présence de brouillard ont été menées en milieu naturel. Nous avons comparé le comportement de deux systèmes laser opérant à 3 longueurs d'onde différentes (650, 850 et 950 nm) dans un même canal de propagation et les mêmes conditions météorologiques. Nous avons pu valider notre modèle théorique et montrer qu'il apportait une amélioration dans la prévision des mesures de transmission par rapport aux modèles existant dans la littérature et couramment employés.
Author: Illya Kazes
Publisher:
ISBN:
Category :
Languages : fr
Pages : 105
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Author: Claude Cohen-Tannoudji
Publisher: John Wiley & Sons
ISBN: 3527345558
Category : Science
Languages : en
Pages : 790
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Book Description
This new, third volume of Cohen-Tannoudji's groundbreaking textbook covers advanced topics of quantum mechanics such as uncorrelated and correlated identical particles, the quantum theory of the electromagnetic field, absorption, emission and scattering of photons by atoms, and quantum entanglement. Written in a didactically unrivalled manner, the textbook explains the fundamental concepts in seven chapters which are elaborated in accompanying complements that provide more detailed discussions, examples and applications. * Completing the success story: the third and final volume of the quantum mechanics textbook written by 1997 Nobel laureate Claude Cohen-Tannoudji and his colleagues Bernard Diu and Franck Laloë * As easily comprehensible as possible: all steps of the physical background and its mathematical representation are spelled out explicitly * Comprehensive: in addition to the fundamentals themselves, the books comes with a wealth of elaborately explained examples and applications Claude Cohen-Tannoudji was a researcher at the Kastler-Brossel laboratory of the Ecole Normale Supérieure in Paris where he also studied and received his PhD in 1962. In 1973 he became Professor of atomic and molecular physics at the Collège des France. His main research interests were optical pumping, quantum optics and atom-photon interactions. In 1997, Claude Cohen-Tannoudji, together with Steven Chu and William D. Phillips, was awarded the Nobel Prize in Physics for his research on laser cooling and trapping of neutral atoms. Bernard Diu was Professor at the Denis Diderot University (Paris VII). He was engaged in research at the Laboratory of Theoretical Physics and High Energy where his focus was on strong interactions physics and statistical mechanics. Franck Laloë was a researcher at the Kastler-Brossel laboratory of the Ecole Normale Supérieure in Paris. His first assignment was with the University of Paris VI before he was appointed to the CNRS, the French National Research Center. His research was focused on optical pumping, statistical mechanics of quantum gases, musical acoustics and the foundations of quantum mechanics.
Author: Camille Flammarion
Publisher:
ISBN: 9781072589648
Category :
Languages : en
Pages : 188
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Book Description
Nicolas Camille Flammarion FRAS was a French astronomer and author. He was a prolific author of more than fifty titles, including popular science works about astronomy, several notable early science fiction novels, and works on psychical research and related topics.
