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Search Results: 1 - 10 of 2335 matches for " Guillaume; "
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Theoretical and Numerical Comparison of Limit Point Bifurcation and Maximum Force Criteria. Application to the Prediction of Diffuse Necking  [PDF]
Guillaume Altmeyer
Modeling and Numerical Simulation of Material Science (MNSMS) , 2013, DOI: 10.4236/mnsms.2013.31006
Abstract: A large number of criteria has been developed to predict material instabilities, but their choice is limited by the lack of existing comparison of their theoretical basis and application domains. To overcome this limitation, a theoretical and numerical comparison of two major models used to predict diffuse necking is present in this paper. Limit Point Bifurcation criterion is first introduced. An original formulation of the Maximum Force Criterion (MFC), taking into account the effects of damage and isotropic and kinematic hardenings, is then proposed. Strong connections are shown between them by comparing their theoretical basis. Numerical Forming Limit Diagrams at diffuse necking obtained with these criteria for different metallic materials are given. They illustrate the theoretical link and similar predictions are shown for both models.
Non-simplifying Graph Rewriting Termination
Guillaume Bonfante,Bruno Guillaume
Electronic Proceedings in Theoretical Computer Science , 2013, DOI: 10.4204/eptcs.110.3
Abstract: So far, a very large amount of work in Natural Language Processing (NLP) rely on trees as the core mathematical structure to represent linguistic informations (e.g. in Chomsky's work). However, some linguistic phenomena do not cope properly with trees. In a former paper, we showed the benefit of encoding linguistic structures by graphs and of using graph rewriting rules to compute on those structures. Justified by some linguistic considerations, graph rewriting is characterized by two features: first, there is no node creation along computations and second, there are non-local edge modifications. Under these hypotheses, we show that uniform termination is undecidable and that non-uniform termination is decidable. We describe two termination techniques based on weights and we give complexity bound on the derivation length for these rewriting system.
Données complémentaires sur les besoins nutritionnels de la reproductrice naine ? Vedette I.N.R.A. JV 15 ?
J Guillaume
Genetics Selection Evolution , 1971, DOI: 10.1186/1297-9686-3-3-390
Abstract:
Quelques particularités nutritionnelles et physiologiques du poussin dw
J Guillaume
Genetics Selection Evolution , 1971, DOI: 10.1186/1297-9686-3-3-384
Abstract:
The multiple faces of self-assembled lipidic systems
Guillaume Tresset
BMC Biophysics , 2009, DOI: 10.1186/1757-5036-2-3
Abstract: PACS Codes: 87.14.Cc, 82.70.UvLipids are the building blocks of cellular compartments. By self-assembling into bilayers, they form fluid membranes that act as relatively impermeable barriers to the passage of most water-soluble molecules. Lipid membranes enclose the cell machinery and protect it from the extracellular environment [1]. They likewise maintain the characteristic differences between the contents of each compartments and the cytosol. They accommodate a number of specialized molecules performing crucial functions to the life of the cell: ion channels pumping protons across the plasma membrane [2], nuclear pore complexes controlling access to and from the nucleus [3,4], or rotary motors synthesizing ATP [5,6]. Several of membrane proteins and glycosphingolipids are used as receptors by viruses and pathogens, including the Alzheimer's associated amyloid peptide [7-9].Lipids share with other amphiphilic molecules the ability to self-assemble in solution into more or less complex aggregates, provided their density exceeds a certain critical micellization concentration (cmc) which depends upon their chemical structure and the ions present [10,11]. A typical cmc value for bilayer-forming lipids ranges from 10-10 to 10-6 M while micelle-forming lipids require 10-5 up to 10-2 M in the bulk solution [12]. The traditional view of the aggregation of amphiphilic molecules is based on the poor solubility of hydrocarbons in water, leading to what is known as the hydrophobic effect [13]. The presence of hydrocarbon residues induces the formation of a cavity in the water structure which causes an increased degree of order and consequently a significant decrease in the entropy of water [14,15]. When hydrocarbon residues meet upon an effective long-range attractive force [16,17], the cavities fuse with one another and expel water from the interface releasing entropy to the solution. This leads to the spontaneous formation of stable aggregates [18].The hydrophilic headgroup
Le minimalisme saturé d'Imagination morte imaginez de Samuel Beckett
Gesvret, Guillaume;
Alea : Estudos Neolatinos , 2010, DOI: 10.1590/S1517-106X2010000100009
Abstract: the short text imagination dead imagine (1966) by samuel beckett offers a both poetic and plastic experiment. the clear definition of bodies and identities, or even of the status of the work, is questioned and constantly reinvented. between affect and plasticity, an excess appears which leads us to understand beckett's minimalism otherwise, and to achieve, through its reading, a paradoxical saturation.
Le Retour au désert de Catherine Marnas
Pin?on, Guillaume;
Alea : Estudos Neolatinos , 2010, DOI: 10.1590/S1517-106X2010000100010
Abstract: catherine marnas's production of return to the desert - which was written by bernard- marie koltès - aims at looking for possible exchanges between the author's work and the contemporary world, by stressing elements that emphasize political issues of relationship concerning the other, the stranger, and territory.
Génesis y estructura de los complejos fronterizos euro-indígenas: Repensando los márgenes americanos a partir (y más allá) de la obra de Nathan Wachtel
Boccara,Guillaume;
Memoria americana , 2005,
Abstract: the current essay focuses in the main transformations known in historical anthropology research of frontier areas during the last decades. at the beginning we will present los vencidos, the pioneer work of nathan wachtel, french historian and anthropologist, in order to explain how this book turned out to be a milestone in the ethnohistoric literature of latin america. then we will argue that the analysis proposed by the author, in terms of resistance/acculturation, tended to be progressively displaced by phenomena such as: ethnicity, mestizaje, ethnogenesis. we will show, thus how ethnohistorical research regarding the new world and its frontiers has change, above all in the ways to approach the cultural dynamic and the sociohistorical processes developed due to the arrival of european people to america. finally this will lead us to pose a tentative definition of a notion called frontier complex.
Del Buen Gobierno en Territorio Mapuche: Notas acerca de una experiencia en salud complementaria
Boccara,Guillaume;
Cuadernos de antropolog?-a social , 2004,
Abstract: in 2003, the newen pu lafkenche, a mapuche organization of south-center chile, signed an agreement with several representatives of the chilean public sector. this accord aimed at improving the conditions of life of eight indigenous communities. one of the civil services, the southern araucania health service, offered to design a new complementary health model along with the indigenous traditional healers and leaders. in this paper i present the principal results of this experience in intercultural health in which i participated. i then develop a reflection regarding the political mechanisms that allow the indigenous communities to cope with the heteronomy. eventually i show how the indigenous political institutions have been reactivated through the process of re-territorialization and how both phenomena are critical to explain the strength of the mapuche mobilization in present-day chile.
Poder colonial e etnicidade no Chile: territorializa??o e reestrutura??o entre os Mapuche da época colonial
Boccara, Guillaume;
Tempo , 2007, DOI: 10.1590/S1413-77042007000200005
Abstract: this paper deals with the reche/mapuche people's resistance to the spanish conquest and colonization of south-central chile. after having successfully opposed the military conquest of their territory (1550-1650), these native groups adapted to the new context of the frontier (1650-1810) and became skilled traders and negotiators.
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