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Author: Pham Duc Wuong
Publisher:
ISBN:
Category :
Languages : fr
Pages : 186
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Book Description
ON CONSIDERE UN GAZ STATISTIQUEMENT STATIONNAIRE FORME D'ELECTRONS ET D'ATOMES AYANT 2 NIVEAUX D'ENERGIE LIES. ON ETUDIE LES PROBABILITES D'ECHAPPEMENT DIRECT ET INDIRECT, LA PROBABILITE DE DESTRUCTION DE SOBOLEV ET LE NOMBRE MOYEN DE DIFFUSIONS. UTILISATION DES RESULTATS POUR UNE NOUVELLE APPROCHE DE LA NOTION DE LONGUEUR DE THERMALISATION DES PHOTONS. UTILISATION DES PROBABILITES D'ECHAPPEMENT DIRECT DES PHOTONS POUR CALCULER LES POPULATIONS DES NIVEAUX ATOMIQUES DES PLASMAS D'HYDROGENE NON THERMIQUES OPTIQUEMENT DENSES. DISCUSSION DES RESULTATS.
Author: Pham Duc Wuong
Publisher:
ISBN:
Category :
Languages : fr
Pages : 186
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Book Description
ON CONSIDERE UN GAZ STATISTIQUEMENT STATIONNAIRE FORME D'ELECTRONS ET D'ATOMES AYANT 2 NIVEAUX D'ENERGIE LIES. ON ETUDIE LES PROBABILITES D'ECHAPPEMENT DIRECT ET INDIRECT, LA PROBABILITE DE DESTRUCTION DE SOBOLEV ET LE NOMBRE MOYEN DE DIFFUSIONS. UTILISATION DES RESULTATS POUR UNE NOUVELLE APPROCHE DE LA NOTION DE LONGUEUR DE THERMALISATION DES PHOTONS. UTILISATION DES PROBABILITES D'ECHAPPEMENT DIRECT DES PHOTONS POUR CALCULER LES POPULATIONS DES NIVEAUX ATOMIQUES DES PLASMAS D'HYDROGENE NON THERMIQUES OPTIQUEMENT DENSES. DISCUSSION DES RESULTATS.
Author: Daniel Vanderhaegen
Publisher:
ISBN:
Category :
Languages : fr
Pages : 160
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Book Description
Cette étude est consacrée au problème du transfert radiatif en mélange hétérogène binaire. La répartition spatiale du mélange est modélisée par des processus aléatoires relativement simples (markovien et de renouvellement), ce qui permet l’obtention de résultats analytiques.On propose, en régime de diffusion, une expression pour l'opacité effective du mélange qui dépend des distributions de tailles de grains et non pas seulement des proportions; ces résultats ont été obtenus en l'absence de "Scattering", et en régime stationnaire. Le terme de "Scattering" plus difficile à traiter, a été pris en compte uniquement dans le cas 1D conservatif; on obtient alors la statistique complète du coefficient de transmission et on met en évidence l'existence d'une fenêtre de transmission. Bien qu'avant été établies dans le cadre du transfert radiatif, ces méthodes peuvent être appliquées au transport de quelconques autres particules.
Author: Eric Servat
Publisher:
ISBN: 9781901502121
Category : Arid regions
Languages : fr
Pages : 518
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Book Description
Author: Goddard Space Flight Center. Office of Public Affairs
Publisher:
ISBN:
Category : Artificial satellites
Languages : en
Pages : 366
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Book Description
Author: Mehrez Zribi
Publisher: Elsevier
ISBN: 0128180862
Category : Science
Languages : en
Pages : 352
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Book Description
Water Resources in the Mediterranean Region summarizes and collates scientific developments around water resources in the Mediterranean socio-economic environment through a multidisciplinary framework synthesizing hydrology, hydrogeology, climate, bioclimatology, economics, and geography. As such, it provides essential information for any reader looking to learn more about the Mediterranean which is experiencing the impact of climate change and concurrent complex issues of anthropogenic effects, especially in agriculture and other resource uses. Water Resources in the Mediterranean Region covers different challenges in the issue of the evolution of water resources in the Mediterranean. It is intended for PhD students, research scientists, and managers interested in new solutions and approaches for water management and in the forecast of future water dynamics. Offers multidisciplinary content providing global visions of the challenges faced in the Mediterranean region Presents fundamental and operational studies, providing the reader with information on how to implement these actions and results themselves Written in a pedagogical manner, allowing for ease of reading for both researchers and water managers
Author: Alain Hébert
Publisher: Presses inter Polytechnique
ISBN: 2553014368
Category : Nuclear physics
Languages : en
Pages : 426
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Book Description
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: Yousry Azmy
Publisher: Springer Science & Business Media
ISBN: 9048134110
Category : Technology & Engineering
Languages : en
Pages : 476
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Book Description
Nuclear engineering has undergone extensive progress over the years. In the past century, colossal developments have been made and with specific reference to the mathematical theory and computational science underlying this discipline, advances in areas such as high-order discretization methods, Krylov Methods and Iteration Acceleration have steadily grown. Nuclear Computational Science: A Century in Review addresses these topics and many more; topics which hold special ties to the first half of the century, and topics focused around the unique combination of nuclear engineering, computational science and mathematical theory. Comprising eight chapters, Nuclear Computational Science: A Century in Review incorporates a number of carefully selected issues representing a variety of problems, providing the reader with a wealth of information in both a clear and concise manner. The comprehensive nature of the coverage and the stature of the contributing authors combine to make this a unique landmark publication. Targeting the medium to advanced level academic, this book will appeal to researchers and students with an interest in the progression of mathematical theory and its application to nuclear computational science.
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.
Author: Serge Marguet
Publisher: Springer
ISBN: 3319595601
Category : Science
Languages : en
Pages : 1462
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Book Description
This comprehensive volume offers readers a progressive and highly detailed introduction to the complex behavior of neutrons in general, and in the context of nuclear power generation. A compendium and handbook for nuclear engineers, a source of teaching material for academic lecturers as well as a graduate text for advanced students and other non-experts wishing to enter this field, it is based on the author’s teaching and research experience and his recognized expertise in nuclear safety. After recapping a number of points in nuclear physics, placing the theoretical notions in their historical context, the book successively reveals the latest quantitative theories concerning: • The slowing-down of neutrons in matter • The charged particles and electromagnetic rays • The calculation scheme, especially the simplification hypothesis • The concept of criticality based on chain reactions • The theory of homogeneous and heterogeneous reactors • The problem of self-shielding • The theory of the nuclear reflector, a subject largely ignored in literature • The computational methods in transport and diffusion theories Complemented by more than 400 bibliographical references, some of which are commented and annotated, and augmented by an appendix on the history of reactor physics at EDF (Electricité De France), this book is the most comprehensive and up-to-date introduction to and reference resource in neutronics and reactor theory.
