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Author: El Mostapha Tammar
Publisher:
ISBN:
Category :
Languages : fr
Pages : 134
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Book Description
Le modèle viscoélastique est introduit pour calculer la structure dynamique des liquides simples. Les systèmes étudiés sont l'argon et les métaux alcalins pour des états allant du point de fusion jusqu'au voisinage du point critique. L'interaction dans les gaz rares est décrite par trois potentiels analytiques de complexité croissante. Pour les alcalins, la théorie des pseudopotentiels est utilisée. L'accent est mis sur l'étude du potentiel de Fiolhais, développé pour les solides et appliqué ici à la description des liquides. La structure statique et les grandeurs thermodynamiques en sont d'abord déduites par la méthode des équations intégrales. Puis, le facteur de structure dynamique est déterminé par le modèle viscoélastique. Les résultats obtenus pour l'argon avec les trois potentiels utilisés sont en bon accord avec les résultats expérimentaux, lorsqu'ils existent. L'étude des métaux alcalins, et plus particulièrement du lithium, du rubidium et du cesium, met en évidence la bonne aptitude du modèle viscoélastique pour prédire le facteur de structure dynamique dans la majorité du domaine de l'espace et des états étudiés. Parallèlement, la transférabilité de l'état solide à l'état liquide du potentiel de Fiolhais est avérée pour ces éléments
Author: El Mostapha Tammar
Publisher:
ISBN:
Category :
Languages : fr
Pages : 134
Get Book Here
Book Description
Le modèle viscoélastique est introduit pour calculer la structure dynamique des liquides simples. Les systèmes étudiés sont l'argon et les métaux alcalins pour des états allant du point de fusion jusqu'au voisinage du point critique. L'interaction dans les gaz rares est décrite par trois potentiels analytiques de complexité croissante. Pour les alcalins, la théorie des pseudopotentiels est utilisée. L'accent est mis sur l'étude du potentiel de Fiolhais, développé pour les solides et appliqué ici à la description des liquides. La structure statique et les grandeurs thermodynamiques en sont d'abord déduites par la méthode des équations intégrales. Puis, le facteur de structure dynamique est déterminé par le modèle viscoélastique. Les résultats obtenus pour l'argon avec les trois potentiels utilisés sont en bon accord avec les résultats expérimentaux, lorsqu'ils existent. L'étude des métaux alcalins, et plus particulièrement du lithium, du rubidium et du cesium, met en évidence la bonne aptitude du modèle viscoélastique pour prédire le facteur de structure dynamique dans la majorité du domaine de l'espace et des états étudiés. Parallèlement, la transférabilité de l'état solide à l'état liquide du potentiel de Fiolhais est avérée pour ces éléments
Author: Guillaume Lecointre
Publisher: Harvard University Press
ISBN: 9780674021839
Category : Science
Languages : en
Pages : 568
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Book Description
Did you know that you are more closely related to a mushroom than to a daisy? That dinosaurs are still among us? That the terms "fish" and "invertebrates" do not indicate scientific groupings? All this is the result of major changes in classification. This book diagrams the tree of life according to the most recent methods of this system.
Author:
Publisher:
ISBN:
Category : Physics
Languages : en
Pages : 830
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Book Description
Author: Charles M. Mansbach
Publisher: Springer Science & Business Media
ISBN: 9780306462412
Category : Medical
Languages : en
Pages : 464
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Book Description
This book was stimulated by the enthusiasm shown by attendees at the meetings in Saxon River, VT, sponsored by the Federation ofAmerican Societies for Experimental Biology (FASEB), on the subject of the intestinal processing of lipids. When these meetings were first started in 1990, the original organizers, two of whom are editors ofthis volume (CMM and PT), had two major goals. The first was to bring together a diverse group ofinvestiga tors who had the common goal of gaining a better understanding of how the intestine ab sorbs lipids. The second was to stimulate the interest of younger individuals whom we wished to recruit into what we believed was an exciting and fruitful area ofresearch. Since that time, the field has opened up considerably with new questions being asked and new an swers obtained, suggesting that our original goals for the meetings were being met. In the same spirit, it occurred to us that there has not been a recentbook that draws to gethermuch ofthe informationavailableconcerninghow the intestineprocesses lipids. This book is intended to reach investigators with an interest in this area and their pre- and post doctoral students. The chapters are written by individuals who have a long-term interest in the areas about which they write, and many have been speakers at the subsequent FASEB conferences that have followed on the first.
Author: Canada. Department of Fisheries and Oceans
Publisher: Peches Et Oceans Direction Generale Des Communications = Fisheries and Oceans Communications Dir
ISBN:
Category : Science
Languages : fr
Pages : 376
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Book Description
Proceedings of a workshop, the scientific reviews and the contributed papers presented at the symposium. The document presents a brief historical summary of marine research in the Gulf; reports the discussions, conclusions and recommendations of the different working groups on oceanography (physics, biology, chemistry and sedimentology) and on the fishery (fish and invertebrates); then presents the discussions of each multidisciplinary working group, centered around how the St. Lawrence system may be used as a natural laboratory which will contribute to the solution of major long-term problems of conservation of natural resources and of the quality of the environment.
Author: S. Roussos
Publisher: Springer Science & Business Media
ISBN: 9401706611
Category : Technology & Engineering
Languages : en
Pages : 641
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Book Description
G.HAINNAUX Departement Milieu et Activites Agricoles, Centre ORSTOM, 911 Avenue d' Agropolis, B.P. 5045, 34032 Montpellier Cedex , France. Solid state fermentation, popularly abbreviated as SSF, is currently investigated by many groups throughout the world. The study of this technique was largely neglected in the past in European and Western countries and there is now a high demand for SSF, meaning in food, environment, agricultural, phannaceutical and many other biotechnological applications. It gives me satisfaction to note that the importance of this technique was realised at my department way back in 1975 since then, our team has put concentrated efforts on developing this technique. xvii Foreword Advances in Solid State Fermentation Foreword M. PUYGRENIER Agropolis Valorisation, Avenue d' Agropolis, 34394 Montpellier Cedex 5, France. On the name of the Scientific Community, I would like to express the wish that this International Symposium on SSF should be successful. Solid State Fermentation is part of biotechnology research. It consists on seeding solid culture medium with bacteria or fungi (filamentous or higher) and on producing, in this medium (solid components and exudates) metabolites and high value products. In fact, this process is very old. In older industries such the food and agricultural, this technique has been extensively used. An example of this is the production of pork sausages and Roquefort cheese. Pharmaceutical industry could make extensive use of SSF in the production of secondary metabolites of many kinds and development in this direction is soon expected.
Author: K. Ozaki
Publisher: Springer Science & Business Media
ISBN: 4431321853
Category : Science
Languages : en
Pages : 299
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Book Description
This book addresses recent developments in the ecology, evolution, systematics, physiology, and biodiversity of gall-inducing arthropods, with individual contributions ranging in scope from detailed descriptions to profoundly synthetic studies. One underlying theme is the various impacts of gall induction that indirectly affect insect communities on the host plant. The other important contribution is the highly intricate and dynamic interactions between galling arthropods and their uniquely specialized host plants.
Author: Michael R. Warburg
Publisher: Springer Science & Business Media
ISBN: 3662218895
Category : Science
Languages : en
Pages : 169
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Book Description
Already as a young boy, I used to walk with my late father, an ardent naturalist at heart, though to his regret not by profession, in the fields and woods on Mt. Carmel where we lived. My father, being largely an amateur ornithologist but also loving other vertebrates, was less inter ested in the little creatures(-the invertebrates) so abundant under stones. These were, more often then not, isopods which are particularly abundant in the Mediterranean region of northern Israel, and therefore not difficult to encounter (Fig. 1). Thus, my interest in the terrestrial isopods started at an early stage. Many years later, after graduating from the Hebrew University, Jerusalem, I worked as an assistant to my late friend and colleague, Professor Michael Costa, at the Teachers Seminary in Oranim. One day I found on my desk a copy of Edney's (1954) paper: Woodlice and the land habitat, which my friend left for me knowing of my interest in this group. Therefore, due to the stimulus of Edney's paper, and the many interesting questions it raised in my mind, I developed a lifelong interest in this amazing crustacean group. My research in the ecophysiology of this group followed to a large extent the directions formulated by Edney and Cloudsley-Thompson whose name will be mentioned throughout this book. I am also indebted to the many stimulating discussions with my friends and colleagues C. S. Crawford, K. E. Linsenmair, and E.
Author: Victor Sadras
Publisher: Academic Press
ISBN: 0128191953
Category : Technology & Engineering
Languages : en
Pages : 780
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Book Description
Crop Physiology: Case Histories of Major Crops updates the physiology of broad-acre crops with a focus on the genetic, environmental and management drivers of development, capture and efficiency in the use of radiation, water and nutrients, the formation of yield and aspects of quality. These physiological process are presented in a double context of challenges and solutions. The challenges to increase plant-based food, fodder, fiber and energy against the backdrop of population increase, climate change, dietary choices and declining public funding for research and development in agriculture are unprecedented and urgent. The proximal technological solutions to these challenges are genetic improvement and agronomy. Hence, the premise of the book is that crop physiology is most valuable when it engages meaningfully with breeding and agronomy. With contributions from 92 leading scientists from around the world, each chapter deals with a crop: maize, rice, wheat, barley, sorghum and oat; quinoa; soybean, field pea, chickpea, peanut, common bean, lentil, lupin and faba bean; sunflower and canola; potato, cassava, sugar beet and sugarcane; and cotton. A crop-based approach to crop physiology in a G x E x M context Captures the perspectives of global experts on 22 crops
Author: R. T. Wilson
Publisher: ILRI (aka ILCA and ILRAD)
ISBN:
Category :
Languages : en
Pages : 598
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Book Description
This volume contains 44 papers and 2 abstracts from a international conference on African small ruminants research and development. eleven papers and 1 abstract deal with the importance of small ruminant production systems and economics. Another 11 describe and analyse feed resources and feeding systems and there are 6 papers on reproductive problems and their solutions. Seven papers and 1 abstract review the prevalent health problems under various management systems and present the solutions to these production constraints. The last 9 papers deal with breeds, breeding systems and breed improvement.
