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Author: H. Brodowsky
Publisher: Springer Science & Business Media
ISBN: 9400910274
Category : Technology & Engineering
Languages : en
Pages : 579
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Book Description
The thermochemistry of alloys has interested generations of scientists and the subject was treated in classical textbooks long ago, e.g. by Hume-Rothery, by Wagner, and by Kubaschewski and Alcock. Nevertheless, the appearance of new materials and the desire to improve traditional materials and metallurgical processes has kept up demand for more information on the thermodynamics of these systems. The advent of computing power has created new opportunities to tie various aspects and properties together, such as phase diagrams and thermodynamic functions, that are in principle thermodynamically inter related but were too cumbersome to work out before. The computer has also been a powerful tool in buUding and testing models that help to explain the underlying causes of non-ideal behavior. At the same time, these calculations have pinpointed areas, where additional and more accurate data are needed. In the laboratory, new methods, improved materials, and sophistica ted instrumentation have gradually changed the way in which experiments are done. Within the time span of perhaps thirty years, the development went from jotting down individual readings of data points to strip chart recording to automatic digital data acquisition. Scholars and students active in the field of "Thermochemistry of Alloys" convened for a NATO Advanced Study Institute at Kiel in August 1987 to discuss these developments. This book collects most of the lectures and seminar papers given at the Institute.
Author: H. Brodowsky
Publisher: Springer Science & Business Media
ISBN: 9400910274
Category : Technology & Engineering
Languages : en
Pages : 579
Get Book Here
Book Description
The thermochemistry of alloys has interested generations of scientists and the subject was treated in classical textbooks long ago, e.g. by Hume-Rothery, by Wagner, and by Kubaschewski and Alcock. Nevertheless, the appearance of new materials and the desire to improve traditional materials and metallurgical processes has kept up demand for more information on the thermodynamics of these systems. The advent of computing power has created new opportunities to tie various aspects and properties together, such as phase diagrams and thermodynamic functions, that are in principle thermodynamically inter related but were too cumbersome to work out before. The computer has also been a powerful tool in buUding and testing models that help to explain the underlying causes of non-ideal behavior. At the same time, these calculations have pinpointed areas, where additional and more accurate data are needed. In the laboratory, new methods, improved materials, and sophistica ted instrumentation have gradually changed the way in which experiments are done. Within the time span of perhaps thirty years, the development went from jotting down individual readings of data points to strip chart recording to automatic digital data acquisition. Scholars and students active in the field of "Thermochemistry of Alloys" convened for a NATO Advanced Study Institute at Kiel in August 1987 to discuss these developments. This book collects most of the lectures and seminar papers given at the Institute.
Author: Salim Benzaghou
Publisher:
ISBN:
Category :
Languages : fr
Pages : 192
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Book Description
L'objet de ce travail est la modélisation des propriétés thermodynamiques de mélanges complexes et en particulier la détermination des équilibres de phases. Les mélanges auxquels nous nous intéressons font intervenir des molécules non sphériques (chaines longues et cycles), ramifiées, et associatives. L'approche proposée consiste en une étude systématique de familles de composes à l'aide d'une équation d'état SAFT (statistical associating fluid theory) en nous efforçant de minimiser le nombre de paramètres ajustables nécessaires et en donnant un moyen de prédire les équilibres de phases pour des systèmes similaires sans le recours à des nouvelles procédures d'ajustement des paramètres. Nous traitons d'abord la famille des alcanes linéaires purs jusqu'à N-C 3 8 avec 3 paramètres uniquement. En transposant ces paramètres aux methylalcanes, ethylalcanes, aux alcènes linéaires et branches ainsi qu'aux cycles satures et insaturés et en définissant un nombre d'atomes de carbone équivalent, la prédiction des pressions de vapeur et des volumes molaires de la phase liquide est réalisée. Les équilibres liquide-vapeur des mélanges binaires d'alcanes et d'alcènes symétriques et asymétriques en tailles sont prédits sans utiliser aucuns paramètres d'interaction binaire. Les résultats obtenus sont compares a ceux obtenus avec l'équation d'état sphct et l'équation d'état Peng-robinson. Nous traitons ensuite les équilibres liquide-vapeur de mélanges binaires Co 2/alcanes et Co 2/alcènes avec un seul jeu de paramètres d'interaction binaire pour chaque type de systeme. Le paramètre d'interaction binaire est indépendant de la température et de la taille de la molécule dans les deux cas. La famille des l-alcools est traitée avec 2 paramètres d'association après avoir transpose les paramètres d'alcanes linéaires pour les interactions entre groupements hydrocarbonés. En transposant ces paramètres aux alcools secondaires et branches et en utilisant le nombre d'atomes de carbone équivalent, la prédiction des pressions de vapeur et les volumes molaires de la phase liquide de ces systèmes sont effectuée. De plus, un premier essai de modélisation de la molécule d'eau est fait en transposant les paramètres d'association des alcools et en déterminant uniquement les paramètres non associatifs sur les données expérimentales de pression de vapeur et de volume molaire de la phase liquide. Les équilibres liquide-vapeur de mélanges binaires alcool/alcool et alcool/alcane sont prédits sans utiliser aucun paramètre d'interaction binaire. Les résultats obtenus sont compares à ceux obtenus avec l'équation d'état Peng-Robinson.
Author: International Atomic Energy Agency
Publisher:
ISBN:
Category : Business & Economics
Languages : en
Pages : 68
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Book Description
Author: Stuart Hill
Publisher: Birkhäuser
ISBN: 3034863101
Category : Science
Languages : en
Pages : 364
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Book Description
Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9789251045411
Category : Business & Economics
Languages : en
Pages : 20
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Book Description
The actual Code of conduct is also available (1996) (ISBN 9251038341).
Author: P. L'Hermite
Publisher: Springer
ISBN: 9789027712943
Category : Science
Languages : en
Pages : 0
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Book Description
Proceedings of the Second European Symposium held in Vienna, Austria, 21-23 October, 1980
Author: David J. Wronkiewicz
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 1370
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Book Description
Safe and effective management of nuclear waste provides a broad range of challenges for materials science. Waste processing, waste form and engineered barrier properties, interactions between engineered and geological systems, radiation effects, chemistry and transport of waste species, and long-term predictions of repository performance are just some of the scientific problems facing modern society. This book, the 22nd in a very successful series from MRS, offers an international and inter-disciplinary perspective on the issues, and features developments in both fundamental and applied areas. Topics include: development and characterization of ceramic waste forms; ceramic waste form corrosion; glass waste form processing; glass formulation, properties and structure; glass waste form corrosion; spent nuclear fuel; performance assessment; repository backfill; flow and transport; natural analogues; container corrosion; metal waste form corrosion; radionuclide speciation and solubility; radionuclide sorption; microbial effects; radiation effects; cement waste forms and waste treatment.
Author: Guillaume Deffuant
Publisher: Springer
ISBN: 3642204236
Category : Social Science
Languages : en
Pages : 227
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Book Description
One common characteristics of a complex system is its ability to withstand major disturbances and the capacity to rebuild itself. Understanding how such systems demonstrate resilience by absorbing or recovering from major external perturbations requires both quantitative foundations and a multidisciplinary view on the topic. This book demonstrates how new methods can be used to identify the actions favouring the recovery from perturbations. Examples discussed include bacterial biofilms resisting detachment, grassland savannahs recovering from fire, the dynamics of language competition and Internet social networking sites overcoming vandalism. The reader is taken through an introduction to the idea of resilience and viability and shown the mathematical basis of the techniques used to analyse systems. The idea of individual or agent-based modelling of complex systems is introduced and related to analytically tractable approximations of such models. A set of case studies illustrates the use of the techniques in real applications, and the final section describes how one can use new and elaborate software tools for carrying out the necessary calculations. The book is intended for a general scientific audience of readers from the natural and social sciences, yet requires some mathematics to gain a full understanding of the more theoretical chapters. It is an essential point of reference for those interested in the practical application of the concepts of resilience and viability
Author: C. G. Caro
Publisher: Cambridge University Press
ISBN: 0521151775
Category : Mathematics
Languages : en
Pages : 551
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Book Description
This classic book outlines the anatomy and physiology of the circulation and explains the mechanical principles that govern it.
Author: I. E. Coop
Publisher: Elsevier Science & Technology
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 520
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Book Description
Ecology and distribution; Breeding; Reproduction; Maintenance and growth; Pregnancy; Lactation of suckling ewes and does; Nutritional diseases; Infectious diseases of sheep and goats; Internal parasites of sheep and goats; External parasites of sheep and goats; Growth and characteristics of wool and hair; Wiik grading and marketing; Livestock and meat marketing and grading; Carcase and meat qualities; Milk production in sheep and goats; Systems, biological and economic efficiencies; Very extensive systems; Extensive grazing systems; Intensive grassland systems; Intensive arable systems; Very intensive systems; Government controlled systems; Migratory (Transhumance) systems; Nomadic systems; Village and smallholder systems; List of contributors.
