ETUDE PAR ABSORPTION X DE SUPER-RESEAUX SUPRACONDUCTEURS ET COUCHES MINCES METALLIQUES PDF Download
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Author: Stefano Colonna
Publisher:
ISBN:
Category :
Languages : en
Pages : 179
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Book Description
DANS CE TRAVAIL NOUS AVONS ANALYSE DES SUPER-RESEAUX D'OXYDES COMPLEXES. CES NOUVEAUX MATERIAUX PRESENTENT UN CONSIDERABLE INTERET TANT TECHNOLOGIQUE, LIE A LA POSSIBILITE DE CONTROLER LES CARACTERISTIQUES STRUCTURELLES DU MATERIAU, QUE DU POINT DE VUE DE LA PHYSIQUE DES SUPRACONDUCTEURS A HAUTE TEMPERATURE DE TRANSITION. NOTAMMENT L'ETUDE IMPLIQUE DES STRUCTURES TYPE INFINITE LAYER, (CACUO 2, SRCUO 2) ET DES SUPER-RESEAUX (BACUO 2) 2/(CACUO 2) N (N=2,3,4) ET (BACUO 2) 2/(SRCUO 2) 2. LES STRUCTURES CONTENANT DU CA SONT TRES INTERESSANTES ETANT DES SUPRACONDUCTEURS AVEC DES TEMPERATURES DE TRANSITION QUI PEUVENT ATTEINDRE 80K A 90K. L'ETUDE CONDUITE AU MOYEN DE LA SPECTROSCOPIE D'ABSORPTION X A PERMIS D'ANALYSER LA STRUCTURE LOCALE AUTOUR DES ATOMES DE CUIVRE, EN FOURNISSANT DES RENSEIGNEMENTS TRES UTILES SUR LE BLOC CHARGE RESERVOIR QUI DOPE LE PLANS D'OXYDE DE CUIVRE (CUO 2) CENSES ETRE RESPONSABLES DE LA SUPRACONDUCTION. PARALLELEMENT A L'ACTIVITE EXPERIMENTALE SUR LES SUPER-RESEAUX, UNE CHAMBRE A VIDE DEDIEE AUX MESURES D'EXAFS DE SURFACE A ETE INSTALLEE ET MISE AU POINT. DES ETUDES D'INTERFACES ENTRE METAUX DE TRANSITION ET MGO SONT EN COURS DE DEROULEMENT. CE TYPE D'INTERFACE PRESENTE UN NOMBRE CONSIDERABLE D'APPLICATIONS TECHNOLOGIQUES. EN PARTICULIER TROIS DIFFERENTES INTERFACES SONT LE SUJET DE CES ETUDES PD/MGO(100), CU/MGO(100) ET AG/MGO(100). DES MESURES PRELIMINAIRES DE TEST, FAITES PENDANT LA MISE AU POINT DE CE SYSTEME A VIDE, ONT ETE PRESENTEES.
Author: Stefano Colonna
Publisher:
ISBN:
Category :
Languages : en
Pages : 179
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Book Description
DANS CE TRAVAIL NOUS AVONS ANALYSE DES SUPER-RESEAUX D'OXYDES COMPLEXES. CES NOUVEAUX MATERIAUX PRESENTENT UN CONSIDERABLE INTERET TANT TECHNOLOGIQUE, LIE A LA POSSIBILITE DE CONTROLER LES CARACTERISTIQUES STRUCTURELLES DU MATERIAU, QUE DU POINT DE VUE DE LA PHYSIQUE DES SUPRACONDUCTEURS A HAUTE TEMPERATURE DE TRANSITION. NOTAMMENT L'ETUDE IMPLIQUE DES STRUCTURES TYPE INFINITE LAYER, (CACUO 2, SRCUO 2) ET DES SUPER-RESEAUX (BACUO 2) 2/(CACUO 2) N (N=2,3,4) ET (BACUO 2) 2/(SRCUO 2) 2. LES STRUCTURES CONTENANT DU CA SONT TRES INTERESSANTES ETANT DES SUPRACONDUCTEURS AVEC DES TEMPERATURES DE TRANSITION QUI PEUVENT ATTEINDRE 80K A 90K. L'ETUDE CONDUITE AU MOYEN DE LA SPECTROSCOPIE D'ABSORPTION X A PERMIS D'ANALYSER LA STRUCTURE LOCALE AUTOUR DES ATOMES DE CUIVRE, EN FOURNISSANT DES RENSEIGNEMENTS TRES UTILES SUR LE BLOC CHARGE RESERVOIR QUI DOPE LE PLANS D'OXYDE DE CUIVRE (CUO 2) CENSES ETRE RESPONSABLES DE LA SUPRACONDUCTION. PARALLELEMENT A L'ACTIVITE EXPERIMENTALE SUR LES SUPER-RESEAUX, UNE CHAMBRE A VIDE DEDIEE AUX MESURES D'EXAFS DE SURFACE A ETE INSTALLEE ET MISE AU POINT. DES ETUDES D'INTERFACES ENTRE METAUX DE TRANSITION ET MGO SONT EN COURS DE DEROULEMENT. CE TYPE D'INTERFACE PRESENTE UN NOMBRE CONSIDERABLE D'APPLICATIONS TECHNOLOGIQUES. EN PARTICULIER TROIS DIFFERENTES INTERFACES SONT LE SUJET DE CES ETUDES PD/MGO(100), CU/MGO(100) ET AG/MGO(100). DES MESURES PRELIMINAIRES DE TEST, FAITES PENDANT LA MISE AU POINT DE CE SYSTEME A VIDE, ONT ETE PRESENTEES.
Author: Georges Safeno
Publisher:
ISBN:
Category :
Languages : fr
Pages : 0
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Author: Ahmed Belasri
Publisher: Springer Nature
ISBN: 9811554447
Category : Technology & Engineering
Languages : en
Pages : 659
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Book Description
This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.
Author: Silvia Diez-Gonzalez
Publisher: Royal Society of Chemistry
ISBN: 1782626816
Category : Science
Languages : en
Pages : 637
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Book Description
In less than 20 years N-heterocyclic carbenes (NHCs) have become well-established ancillary ligands for the preparation of transition metal-based catalysts. This is mainly due to the fact that NHCs tend to bind strongly to metal centres, avoiding the need of excess ligand in catalytic reactions. Also, NHC‒metal complexes are often insensitive to air and moisture, and have proven remarkably resistant to oxidation. This book showcases the wide variety of applications of NHCs in different chemistry fields beyond being simple phosphine mimics. This second edition has been updated throughout, and now includes a new chapter on NHC‒main group element complexes. It covers the synthesis of NHC ligands and their corresponding metal complexes, as well as their bonding and stereoelectronic properties and applications in catalysis. This is complemented by related topics such as organocatalysis and biologically active complexes. Written for organic and inorganic chemists, this book is ideal for postgraduates, researchers and industrialists.
Author: Maurizio Peruzzini
Publisher: Springer Science & Business Media
ISBN: 9048138175
Category : Science
Languages : en
Pages : 477
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Book Description
Each chapter of Phosphorus Compounds: Advanced Tools in Catalysis and Material Sciences have been carefully selected by the editors in order to represent a state-of-the-art overview of how phosphorus chemistry can provide solutions in various fields of applications. The editors have assembled an international array of world-renowned scientists and each chapter is written by experts in the fields of synthetic chemistry, homogeneous catalysis, dendrimers, theoretical calculations, materials science, and medicinal chemistry with a special focus on the chemistry of phosphorus compounds. Phosphorus Compounds: Advanced Tools in Catalysis and Material Sciences is of interest to a general readership ranging from advanced university course students to experts in academia and industry.
Author: Alain Hébert
Publisher: Presses inter Polytechnique
ISBN: 2553014368
Category : Nuclear physics
Languages : en
Pages : 426
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Book Description
Author: Alexandru Grumezescu
Publisher: Academic Press
ISBN: 0128043784
Category : Science
Languages : en
Pages : 926
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Book Description
Encapsulations, a volume in the Nanotechnology in the Agri-Food Industry series,presents key elements in establishing food quality through the improvement of food flavor and aroma. The major benefits of nanoencapsulation for food ingredients include improvement in bioavailability of flavor and aroma ingredients, improvement in solubility of poor water-soluble ingredients, higher ingredient retention during production process, higher activity levels of encapsulated ingredients, improved shelf life, and controlled release of flavor and aroma. This volume discusses main nanoencapsulation processes such as spray drying, melt injection, extrusion, coacervation, and emulsification. The materials used in nanoencapsulation include lipids, proteins, carbohydrates, cellulose, gums, and food grade polymers. Applications and benefits of nanoencapsulation such as controlled release, protections, and taste masking will be explained in detail. Includes the most up-to-date information on nanoencapsulation and nanocontainer-based delivery of antimicrobials Presents nanomaterials for innovation based on scientific advancements in the field Provides control release strategies to enhance bioactivity, including methods and techniques for research and innovation Provides useful tools to improve the delivery of bioactive molecules and living cells into foods
Author: James J. Duderstadt
Publisher: John Wiley & Sons
ISBN:
Category : Science
Languages : en
Pages : 630
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Book Description
Problems after each chapter
Author: Xian Jun Loh
Publisher: Springer
ISBN: 9812871527
Category : Technology & Engineering
Languages : en
Pages : 229
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Book Description
This book presents the research involving in situ gelling polymers and can be used as a guidebook for academics, industrialists and postgraduates interested in this area. This work summaries the academic contributions from the top authorities in the field and explore the fundamental principles of in situ gelling polymeric networks, along with examples of their major applications. This book aims to provide an up-to-date resource of in situ gelling polymer research.
Author: David Adler
Publisher: Springer Science & Business Media
ISBN: 1489922601
Category : Science
Languages : en
Pages : 448
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Book Description
The Institute for Amorphous Studies was founded in 1982 as the international center for the investigation of amorphous mate rials. It has since played an important role in promoting the und er standing of disordered matter in general. An Institute lecture series on "Fundamentals of Amorphous Materials and Devices" was held during 1982-83 with distinguished speakers from universities and industry. These events were free and open to the public ,and were attended by many representatives of the scientific community. The lectures themselves were highly successful inasmuch as they provided not only formal instruction but also an opportunity for vigorous and stimulating debate. That last element could not be captured within the pages of a book I but the lectures concentrated on the latest advances in the field I which is why their essential contents are he re reproduced in collective form. Together they constitute an interdisciplinary status report of the field. The speakers brought many different viewpoints and a variety of back ground experiences io bear on the problems involved I but though language and conventions vary I the essential unity of the concerns is very clear I as indeed are the ultimate benefits of the many-sided approach.
