Download or read book Contribution l tude exp rimentale de la conductibilit lectrique des couches minces d or written by Minn Sen Sik and published by FeniXX. This book was released on 1961-01-01T00:00:00+01:00 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cet ouvrage est une réédition numérique d’un livre paru au XXe siècle, désormais indisponible dans son format d’origine.
Download or read book Contribution l tude exp rimentale de la conductibilit lectrique des couches minces d or written by and published by . This book was released on 1960 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contribution l tude exp rimentale de la conductibilit lectrique des couches minces d Or written by Sen-Sik Minn and published by . This book was released on 1961 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contribution l tude de la conductibilit lectrique des couches minces Au MgF2 AU et Au SiO AU written by Michel Desvilles and published by . This book was released on 1970 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contribution l tude de l influence de l adsorption des gaz sur la conductibilit lectrique de couches m talliques tr s minces written by and published by . This book was released on 1961 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contribution l tude de la conductibilit lectrique d oxydes r fractaires haute temp rature written by Guy Robert and published by . This book was released on 1967 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ETUDE EXPERIMENTALE ET MODELISATION ANALYTIQUE DES PROPRIETES DE CONDUCTIVITE ELECTRIQUE DE COUCHES MINCES DEPOSEES PAR LPCVD ET FORTEMENT DOPEES IN SITU written by MUSTAPHA.. MOKHTARI and published by . This book was released on 1993 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'OBJET DE CETTE THESE EST L'ETUDE DE LA CONDUCTIVITE ET DE L'EFFET HAUTE SUR DES COUCHES MINCES DE SILICIUM POLYCRISTALLINS OBTENUES PAR DEPOT CHIMIQUE EN PHASE EN BASSE PRESSION ET DOPEES IN SITU DANS LA GAMME DE DOPAGE 2.10#1#8 A 2.10#2#0 CM##3 ET D'EPAISSEUR COMPRISE ENTRE 50 NM ET 800 NM. ON DECRIT TOUT D'ABORD UN APPAREILLAGE QUE NOUS AVONS REALISE POUR MESURES SOUS POINTES DES CARACTERISTIQUES I(V) DE SEMI-CONDUCTEURS (DANS LA GAMME DE RESISTANCE 1 A 1 T) ET DE COMPOSANTS ELECTRONIQUES A DEUX OU TROIS ELECTRODES, SOUS VIDE SECONDAIRE ET DANS UNE GAMME DE TEMPERATURE ALLANT DE 180C A +300C. APRES UNE REVUE BIBLIOGRAPHIQUE DES MODELES DE CONDUCTIVITE DES COUCHES POLYCRISTALLINES, NOUS DETAILLONS LES CONDITIONS D'ELABORATION ET DE NOS COUCHES AINSI QUE LEURS PROPRIETES PHYSIQUES (CRISTALLINITE, TAILLE DE GRAIN ET TAUX D'INCORPORATION EN ATOMES DE PHOSPHORE). ENSUITE, LA CONDUCTIVITE, LA CONCENTRATION D'ELECTRONS LIBRES ET LEUR MOBILITE SONT CORRELES AU RAPPORT MOLAIRE PHOSPHINE/SILANE (AJUSTE PENDANT LE DEPOT), AINSI QU'AU TAUX D'INCORPORATION DE DOPANT DANS LA COUCHE. ON MONTRE QUE L'EFFICACITE DE DOPAGE DECROIT QUAND ON AUGMENTE LE TAUX DE DOPAGE TOUT EN GARDANT UNE VALEUR ELEVEE POUR CE TYPE DE COUCHE (75% A 25%). LE FAIT QUE LA CONCENTRATION DE PORTEURS LIBRES SOIT CONSTANTE DANS LA GAMME DE TEMPERATURE 180C-100C ET COMPTE TENU DES VARIATIONS EN TEMPERATURE DE LA CONDUCTIVITE, NOUS ONT PERMIS DE MODELISER LE PROCESSUS DE TRANSPORT ELECTRONIQUE DANS CES COUCHES EN COMBINANT L'EFFET THERMOIONIQUE, EFFET PRINCIPAL AU-DESSUS DE LA TEMPERATURE AMBIANTE, ET L'EFFET TUNNEL DE GRAIN A GRAIN, PREPONDERANT EN BASSE TEMPERATURE. ON OBTIENT AINSI DES INFORMATIONS SUR L'EVOLUTION EN FONCTION DU DOPAGE DE LA DENSITE SUPERFICIELLE DE PIEGES AUX JOINTS DE GRAINS AINSI QUE CELLE DE LA HAUTEUR ET DE LA LARGEUR DES BARRIERES DE POTENTIEL INTERGRANULAIRES
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 Plant Ecology written by Unesco and published by . This book was released on 1955 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applications of the Theory of Plasticity in Soil Mechanics written by Jean Salençon and published by John Wiley & Sons. This book was released on 1977 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Continuum Mechanics written by Jean Salencon and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt: Outstanding approach to continuum mechanics. Its high mathematical level of teaching together with abstracts, summaries, boxes of essential formulae and numerous exercises with solutions, makes this handbook one of most complete books in the area. Students, lecturers, and practitioners will find this handbook a rich source for their studies or daily work.
Download or read book The Problems of the Arid Zone written by Unesco and published by paris. This book was released on 1962 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Climatology written by Unesco and published by . This book was released on 1958 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Yield Design written by Jean Salençon and published by Wiley-ISTE. This book was released on 2013-05-20 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the middle of the 20th Century yield design approaches have been identified with the lower and upper bound theorem of limit analysis theory – a theory associated with perfect plasticity. This theory is very restrictive regarding the applicability of yield design approaches, which have been used for centuries for the stability of civil engineering structures. This book presents a theory of yield design within the original “equilibrium/resistance” framework rather than referring to the theories of plasticity or limit analysis; expressing the compatibility between the equilibrium of the considered structure and the resistance of its constituent material through simple mathematical arguments of duality and convex analysis results in a general formulation, which encompasses the many aspects of its implementation to various stability analysis problems. After a historic outline and an introductory example, the general theory is developed for the three-dimensional continuum model in a versatile form based upon simple arguments from the mathematical theory of convexity. It is then straightforwardly transposed to the one-dimensional curvilinear continuum, for the yield design analysis of beams, and the two-dimensional continuum model of plates and thin slabs subjected to bending. Field and laboratory observations of the collapse of mechanical systems are presented along with the defining concept of the multi-parameter loading mode. The compatibility of equilibrium and resistance is first expressed in its primal form, on the basis of the equilibrium equations and the strength domain of the material defined by a convex strength criterion along with the dual approach in the field of potentially safe loads, as is the highlighting of the role implicitly played by the theory of yield design as the fundamental basis of the implementation of the ultimate limit state design (ULSD) philosophy with the explicit introduction of resistance parameters. Contents 1. Origins and Topicality of a Concept. 2. An Introductory Example of the Yield Design Approach. 3. The Continuum Mechanics Framework. 4. Primal Approach of the Theory of Yield Design. 5. Dual Approach of the Theory of Yield Design. 6. Kinematic Exterior Approach. 7. Ultimate Limit State Design from the Theory of Yield Design. 8. Optimality and Probability Approaches of Yield Design. 9. Yield Design of Structures. 10. Yield Design of Plates: the Model. 11. Yield Design of Plates Subjected to Pure Bending. About the Authors Jean Salençon is Emeritus Professor at École polytechnique and École des ponts et chaussées, ParisTech, France. Since 2009 he has been a member of the Administrative Board of CNRS (Paris, France). He has received many awards including the Légion d’Honneur (Commander), Ordre National du Mérite (Officer) and Palmes Académiques (Commander). His research interests include structure analysis, soil mechanics and continuum mechanics.
Download or read book Climatologie Et Microclimatologie written by Unesco and published by . This book was released on 1958 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Physiology and Psychology in Arid Conditions written by Unesco and published by paris. This book was released on 1964 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
