Etude du frottement intérieur à haute température de métaux C.F.C. de pureté élevée

Etude du frottement intérieur à haute température de métaux C.F.C. de pureté élevée PDF Author: André Rivière
Publisher:
ISBN:
Category :
Languages : fr
Pages : 204

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Book Description
ETUDE EFFECTUEE SUR DES ECHANTILLONS D'AG, NI, AL ET CU. LES SPECTRES DE FROTTEMENT INTERNE SONT EN FAIT COMPOSES DE PICS DE RELAXATION ET DE MAXIMA LIES A L'AMPLITUDE MAXIMALE DE LA RELATION. LES CONDITIONS D'APPARITION DES PICS ET LEUR COMPORTEMENT AU COURS DE RECUITS SUCCESSIFS, DIFFERENTS SELON L'ENERGIE DE FAUTE MONTRENT QUE LES EFFETS OBSERVES SONT LIES A DES MOUVEMENTS DE DISLOCATIONS SITUEES DANS DES AMAS OU DES PAROIS DE POLYGONISATION PLUTOT QUE DANS LE RESEAU TRIDIMENSIONNEL

Etude du frottement intérieur à haute température de métaux C.F.C. de pureté élevée

Etude du frottement intérieur à haute température de métaux C.F.C. de pureté élevée PDF Author: André Rivière
Publisher:
ISBN:
Category :
Languages : fr
Pages : 204

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Book Description
ETUDE EFFECTUEE SUR DES ECHANTILLONS D'AG, NI, AL ET CU. LES SPECTRES DE FROTTEMENT INTERNE SONT EN FAIT COMPOSES DE PICS DE RELAXATION ET DE MAXIMA LIES A L'AMPLITUDE MAXIMALE DE LA RELATION. LES CONDITIONS D'APPARITION DES PICS ET LEUR COMPORTEMENT AU COURS DE RECUITS SUCCESSIFS, DIFFERENTS SELON L'ENERGIE DE FAUTE MONTRENT QUE LES EFFETS OBSERVES SONT LIES A DES MOUVEMENTS DE DISLOCATIONS SITUEES DANS DES AMAS OU DES PAROIS DE POLYGONISATION PLUTOT QUE DANS LE RESEAU TRIDIMENSIONNEL

Étude des pics de frottement intérieur attribués à la relaxation des joints de grains dans les métaux C.F.C. [cubiques à faces centrées] de haute pureté

Étude des pics de frottement intérieur attribués à la relaxation des joints de grains dans les métaux C.F.C. [cubiques à faces centrées] de haute pureté PDF Author: Jacques Woirgard
Publisher:
ISBN:
Category :
Languages : fr
Pages : 133

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Book Description
UN MODELE PLUS GENERAL DE LA RELAXATION EST PROPOSE, APPLICABLE TANT AUX MONOCRISTAUX QU'AUX POLYCRISTAUX, BASE SUR LA MONTEE DES DISLOCATIONS. LES VALEURS EXPERIMENTALES DES PARAMETRES DE RELAXATION DES METAUX DE STRUCTURE CUBIQUE A FACES CENTREES POLYCRISTALLINS ONT ETE PRECISEES. L'ORIGINE DE LA RELAXATION A ETE PRECISEE PAR UNE METHODE NOUVELLE SUR DES ECHANTILLONS BICRISTALLINS DE DESORIENTATION DEFINIE. L'EXISTENCE DE PICS DE RELAXATION A BASSE TEMPERATURE A ETE MISE EN EVIDENCE SUR DES METAUX DE FAIBLE ENERGIE DE FAUTE D'EMPILEMENTS, SAUF LE PB, ET DANS TOUS LES CAS DE PICS DE HAUTE TEMPERATURE. DES PICS SEMBLABLES AUX PICS TROUVES SUR DES POLYCRISTAUX ONT ETE TROUVES SUR DES MONOCRISTAUX ET DES BICRISTAUX, AVEC UNE INTENSITE MOINDRE

Etude des pics de frottement intérieur attributes à la relaxation des joints de grains dans les métaux C.F.C. de haute pureté

Etude des pics de frottement intérieur attributes à la relaxation des joints de grains dans les métaux C.F.C. de haute pureté PDF Author: Jacques Woirgard
Publisher:
ISBN:
Category :
Languages : fr
Pages :

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Dictionary of Building and Civil Engineering

Dictionary of Building and Civil Engineering PDF Author: Don Montague
Publisher: Taylor & Francis
ISBN: 9780419199106
Category : Architecture
Languages : en
Pages : 472

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Book Description
This dual-language dictionary lists over 20,000 specialist terms in both French and English, covering architecture, building, engineering and property terms. It meets the needs of all building professionals working on projects overseas. It has been comprehensively researched and compiled to provide an invaluable reference source in an increasingly European marketplace.

Dictionary of French and English, English and French

Dictionary of French and English, English and French PDF Author: John Bellows
Publisher:
ISBN:
Category : English language
Languages : en
Pages : 708

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Book Description


Satellite Situation Report

Satellite Situation Report PDF Author: Goddard Space Flight Center. Office of Public Affairs
Publisher:
ISBN:
Category : Artificial satellites
Languages : en
Pages : 366

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Book Description


Flexoelectricity in Liquid Crystals

Flexoelectricity in Liquid Crystals PDF Author: Agnes Buka
Publisher: World Scientific
ISBN: 1848167997
Category : Science
Languages : en
Pages : 299

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Book Description
The book intends to give a state-of-the-art overview of flexoelectricity, a linear physical coupling between mechanical (orientational) deformations and electric polarization, which is specific to systems with orientational order, such as liquid crystals. Chapters written by experts in the field shed light on theoretical as well as experimental aspects of research carried out since the discovery of flexoelectricity. Besides a common macroscopic (continuum) description the microscopic theory of flexoelectricity is also addressed. Electro-optic effects due to or modified by flexoelectricity as well as various (direct and indirect) measurement methods are discussed. Special emphasis is given to the role of flexoelectricity in pattern-forming instabilities. While the main focus of the book lies in flexoelectricity in nematic liquid crystals, peculiarities of other mesophases (bent-core systems, cholesterics, and smectics) are also reviewed. Flexoelectricity has relevance to biological (living) systems and can also offer possibilities for technical applications. The basics of these two interdisciplinary fields are also summarized.

Space Debris

Space Debris PDF Author: Heiner Klinkrad
Publisher: Springer Science & Business Media
ISBN: 3540376747
Category : Technology & Engineering
Languages : en
Pages : 438

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Book Description
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.

Nonlinear Optical Materials

Nonlinear Optical Materials PDF Author: Jerome V. Moloney
Publisher: Springer Science & Business Media
ISBN: 9780387985817
Category : Business & Economics
Languages : en
Pages : 270

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Book Description
Mathematical methods play a significant role in the rapidly growing field of nonlinear optical materials. This volume discusses a number of successful or promising contributions. The overall theme of this volume is twofold: (1) the challenges faced in computing and optimizing nonlinear optical material properties; and (2) the exploitation of these properties in important areas of application. These include the design of optical amplifiers and lasers, as well as novel optical switches. Research topics in this volume include how to exploit the magnetooptic effect, how to work with the nonlinear optical response of materials, how to predict laser-induced breakdown in efficient optical devices, and how to handle electron cloud distortion in femtosecond processes.

Construction Dictionary

Construction Dictionary PDF Author: Nawic Education Foundation
Publisher:
ISBN: 9781491730812
Category : Reference
Languages : en
Pages : 0

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Book Description
An extensive listing of the terms and phrases used in construction. Included are many that are encountered daily on the jobsite or in the construction office.