Dissertations / Theses on the topic 'Spatio-temporelle'
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HUYET, GUILLAUME. "Dynamique spatio-temporelle des lasers." Nice, 1995. http://www.theses.fr/1995NICE4845.
Full textMegret, Rémi Jolion Jean-Michel. "Structuration spatio-temporelle de séquences vidéo." Villeurbanne : Doc'INSA, 2005. http://docinsa.insa-lyon.fr/these/pont.php?id=megret.
Full textNguyen, Duong Tuan. "Réduction spatio-temporelle du bruit multiplicatif." Sherbrooke : Université de Sherbrooke, 2003.
Find full textMegret, Rémi. "Structuration spatio-temporelle de séquences vidéo." Lyon, INSA, 2003. http://theses.insa-lyon.fr/publication/2003ISAL0089/these.pdf.
Full textThis thesis tackles the problem of extracting a spatio-temporal structure out of a video sequence. The goal is to provide a structured representation of the visual content, by taking into account the whole spatio-temporal extent of the sequence, spatially as well as temporally. Several points of view are proposed to address this issue: - a representation based on trajectories of blobs, - a segmentation method that works jointly in space and time, - and a more general formalization that builds around the concept of recursive grouping. These approaches share the properties that we consider multi-level representations, by use of hierarchical structures. They are based on pixel groupings that have a compact shape, like blobs in images, and strands in video sequences
Nguyen, Duong Tuan. "Réduction spatio-temporelle du bruit multiplicatif." Mémoire, Université de Sherbrooke, 2003. http://savoirs.usherbrooke.ca/handle/11143/1234.
Full textMosca, Frédéric. "Synthèse d'émission spatio-temporelle pour l'imagerie acoustique." Phd thesis, Télécom ParisTech, 2010. http://pastel.archives-ouvertes.fr/pastel-00574356.
Full textBagard, Vincent Crozet Yves. "Optimisation spatio-temporelle des pratiques de tourisme." Lyon : Université Lumière Lyon 2, 2005. http://demeter.univ-lyon2.fr:8080/sdx/theses/lyon2/2005/bagard_v.
Full textBagard, Vincent. "Optimisation spatio-temporelle des pratiques de tourisme." Lyon 2, 2005. http://theses.univ-lyon2.fr/documents/lyon2/2005/bagard_v.
Full textDespite it represents a growing part of distances travelled and a great potential for the future, the tourism mobility is not clearly understood as for its fundamental nature. How tourism practices are optimized in space and time ? How can we explain the intensification of travels toward both proximity and distant destinations since twenty years ? We propose a spatio-temporal model of touristic choices funded on the Becker model (1965). This model aims at understanding the choice between transit time, length of the stay, distance of the destination and travel frequency. We can draw the main conclusions of this work : -Scarcity or abundance of vacation time is rather a function of destinations affordable and propensity to travel (travel is assumed to be a superior good) than the only quantity of time available. - There is a comfort norm between transit time and total time of the tour (we assume time awake without sleep time). This norm turns around 15% of time with a maximum of 30%. - There is a compensation between the length of the tour and the distance of destination with a decreasing impact of the extension of the stay on the distance. - Spatial and temporal components are clearly influenced by time units blocks as weeks and week-ends. - On the annual scale, the extension of vacation time results rather of a multiplication of short travels than longer ones
Plumejeaud, Christine. "Modèles et méthodes pour l'information spatio-temporelle évolutive." Phd thesis, Université de Grenoble, 2011. http://tel.archives-ouvertes.fr/tel-00630984.
Full textGuillocheau, Nathalie. "Répartition spatio-temporelle du phytoplancton du Bassin d'Arcachon." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37614115v.
Full textRouault, Hervé. "Réseaux génétiques et dynamique spatio-temporelle d'ensembles cellulaires." Paris 7, 2009. http://www.theses.fr/2009PA077265.
Full textThis thesis presents a series of works dealing with some aspects of development and cellular differentiation. The first part exposes a bioinformatics algorithm, that we have developed, allowing to study the sequences from the genome responsible for the specific expression of genes in the various tissues constituting an organism. It aims at extracting the key components and some syntax of the cis-regulatory sequences. We present its application to the specification of sensory organ precursors in Drosophila melanogaster. A second part consists in the theoretical study of the structure of the networks of interactions between genes and proteins leading to cell fate specification. We have used a method of evolution in silico, to build genetic networks, needing or not cell-cell communication, mimicking cell differentiation. The underlying phenomena are responsible for the settlement and maintenance of the specialized functions of cells. Finally, in a third part, we propose a model of mechanical control of growth, likely to explain several surprising observation in the formation of organs. In particular, we have modeled the proliferation of cells constituting the Drosophila melanogaster wings and propose a mechanism which make the tissue growth rate uniform
MONTILLA-LEON, GUILLERMO. "Analyse spatio-temporelle de sequences d'images en echocardiographie." Rennes 1, 1994. http://www.theses.fr/1996REN10100.
Full textGuillocheau, Nathalie. "Répartition spatio-temporelle du phytoplancton du bassin d'Arcachon." Aix-Marseille 2, 1988. http://www.theses.fr/1988AIX22007.
Full textVaucher, Gilles. "A la recherche d'une algebre neuronale spatio-temporelle." Rennes 1, 1996. http://www.theses.fr/1996REN10205.
Full textChaté, Hugues. "Transition vers la turbulence via intermittence spatio-temporelle." Paris 6, 1989. http://www.theses.fr/1989PA066095.
Full textZUGMEYER, OLIVIER. "Methodes d'analyse spatio-temporelle de sources en mouvement." Rennes 1, 1992. http://www.theses.fr/1992REN10092.
Full textOLENDRARU, CORNEL. "Etude spatio-temporelle de jets et sillages tournants." Palaiseau, Ecole polytechnique, 1999. http://www.theses.fr/1999EPXX0028.
Full textTOUZNI, AZZEDINE. "Performance et robustesse en egalisation aveugle spatio-temporelle." Cergy-Pontoise, 1998. http://www.theses.fr/1998CERG0050.
Full textSaheb, Ettabaa Karim. "Vers une modélisation spatio-temporelle en imagerie satellitale." Télécom Bretagne, 2007. http://www.theses.fr/2007TELB0049.
Full textThe remote sensing technique is used in several domains as environment management, tracking and forecasting natural disaster, agriculture, military applications, etc. Many problems issued from the exploitation of these images due to their abundance, to their nature and their diversification, have complicated their treatment and permitted to develop several axes of research in this domain in order to extract the maximum of knowledge and to improve their exploitation. The analysis of satellite images representing natural and dynamic scenes introduced a very important volume of information and requires a substantial elaboration at all levels: preprocessing, segmentation, recognition and interpretation. The difficulty depends on the nature of entities to recognize and the strategy of interpretation relative to each entity going from the recognition of simple and complex objects until the temporal script recognition in a provisional and decisional context. We propose an approach whose particularity is to exploit a meta-model regrouping an interpretation strategies model and a decisional model whose objective is the assessment and the definition of the different states of the system according to the scene perception and the practiced and contextual knowledge. At the conceptualization level, we define the objectives of our system as well as the different tasks to accomplish while respecting of regulation, feedback and control constraints. At the operational level, our system is based on a hierarchical blackboard and multi-agent system which used to model semantic objects. Therefore, we consider the interpretation of images to not only one level, but to different granularities going from the macro level in term of the image sequence until the micro level in term of primitive, going back up toward a meso level which regroups several primitive for defining semantic objects. Indeed, our gait will be oriented objects multi-facet semantics taking account of radiometric, spatial, contextual and temporal dimension. Each Object being located in the scene can be considered as an evolutionary system that changes states. The spatio-temporal modelling has the tendency to replicate the evolution and the dynamics of objects. This can be represented by an automaton where states correlate to stages of the evolution of the object to identify. These stages constitute summits of the automaton and events that join these summits are represented by bows taking account the clock constraints. Therefore, the spatio-temporal modelling of the interpreted scene is a representation of objects models and translating their models of evolution
Dal, Maso Serena. "La métaphore spatio-temporelle : une application à l'italien." Aix-Marseille 1, 2002. http://www.theses.fr/2002AIX10073.
Full textPariente, Gustave. "Caractérisation spatio-temporelle d’impulsions laser de haute puissance." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLS003/document.
Full textHigh power laser make it possible to reach very high intensities (up to 10²²W.cm⁻²). In order to get to this level of intensity, a moderate quantity of energy (on the order of the Joule) is concentrated in a very short time (on the order of tens of femtoseconds) onto a small surface (on the order of 1 μm²). These beams are therefore ultra-short and focused with a high aperture optic. These features mean that their diameter prior to focus is large and their spectral width is big. As a result, these beams are subject to spatio-spectral distorsions (of spatio-temporal couplings). After focus, these distorsions induce a dramatic reduction of the peak intensity. This situation is all the more true when the laser is more intense and its diameter and spectral width are therefore bigger. Despite their detrimental effects, spatio-temporal couplings can be of great interest when controlled. One can indeed introduce weak spatio-temporal couplings for experimental purposes. In the 1990s and 2000s, a big effort was put in order to characterize dans optimize the temporal profile of femtosecond lasers. Meanwhile, adaptative optics solutions were developed to control the spatial profil of ultra intense laser beams and provide the best focal spot achievable. By nature, this approach is blind to spatio-temporal couplings. Measuring these distorsions requires a spatio-temporal characterization. Before the start of this Phd thesis, spatio-temporal characterization methods already existed. Although none of these devices were ever adapted to the measurement of ultra-intense laser beams. During this Phd Thesis, we developped a new spatio-temporal characterization technique which we called TERMITES. This technique is based on a self-referenced Fourier transform spectroscopy scheme. TERMITES made it possible for us to perform the first total spatio-temporal characterization of a 100 TW laser (UHI-100 at CEA Saclay, France). The detection of spatio-temporal distorsions with the help of these measurements confirmed the need for a generalization of spatio-temporal characterization of ultra-high power lasers
Romain, Rudy. "Dynamique spatio-temporelle dans un piège magnéto-optique." Thesis, Lille 1, 2013. http://www.theses.fr/2013LIL10163/document.
Full textThe aim of this thesis is to study the spatio-temporal dynamics of laser cooled atoms in a magneto-optical trap (MOT). Recent works have shown that in the multiple scattering regime, an atomic cloud can have an unstable behavior without external modulation of the system. Nevertheless, these instabilities have not yet been modeled in a satisfactory way. A new configuration of the MOT has been built up as a possible way to study instabilities in only one direction. This trap, called anisotropic MOT, is not made of laser beams with the same laser frequencies along each direction of space. It exhibits the strong couplings between the directions of the trap, with the result that it cannot be used to reduce the number of directions in which instabilities grow up. However, this study can be considered as a new step to a better 3D description of the MOT physics. In particular, it gives us a way to measure the probability that a scattered photon is reabsorbed inside the atomic cloud. This quantity is a characteristic of the MOT but it has never been measured so far. We also develop a 1D spatio-temporal model of the MOT. It consists in a set of coupled nonlinear equations linking the atomic density and the laser intensities. This set contains a Vlasov-Fokker-Planck equation which is used to model a lot of systems in various fields and not only in physics. Numerical simulations have been done in a simple case. In the experiment, the use of a fast video camera allows us to observe the spatial structure of one type of instabilities, the so-called stochastic instabilities
Ali, Naamat. "Dynamique spatio-temporelle et identification des diffusions non linéaires." Phd thesis, Université de La Rochelle, 2013. http://tel.archives-ouvertes.fr/tel-01066085.
Full textBen, Hamadou Radhouane. "Contribution à l'analyse spatio-temporelle de séries écologiques marines." Paris 6, 2003. http://www.theses.fr/2003PA066021.
Full textEUDE, VIRGINIE. "Modelisation spatio-temporelle floue pour la reconnaissance d'activites militaires." Paris 6, 1998. http://www.theses.fr/1998PA066120.
Full textBoulier, Bruno. "Évolution spatio-temporelle de structures tourbillonnaires dans la houle." Le Havre, 1996. http://www.theses.fr/1996LEHA0011.
Full textEl, Zant Manal. "Contribution à une représentation spatio-temporelle des dépêches épidémiologiques." Aix-Marseille 2, 2008. http://www.theses.fr/2008AIX20666.
Full textA spatio-temporal representation of event structures is important for an automatic comprehension of disease outbreak reports. The dispersion of components in this type of reports makes it difficult to have such a representation. This work describes an automatic extraction of event structures representation of these texts. We built an information extraction system by using cascaded finite state transducers which allowed the realization of three tasks : the named entity recognition, the arguments annotation and representation and the event structure representation. We obtained with this method a recall between 74. 24% and 100% for the named entity recognition task and a recall between 97. 18% and 99. 54% for argument representation task. Thereafter, we contributed to a normalization task in anaphoric pronouns resolution and in some inferences resolution concerning disease causation, concerned person, spatial and temporal location. We obtained a precision between 70. 83% and 100% for anaphoric pronouns resolution. The evaluation of inferences rules resolutions consisted in finding some counterexamples in the corpora for evaluation
Dussutour, Audrey. "Organisation spatio-temporelle des déplacements collectifs chez les fourmis." Toulouse 3, 2004. http://www.theses.fr/2004TOU30242.
Full textOberoi, Kamaldeep Singh. "Modélisation spatio-temporelle du trafic routier en milieu urbain." Thesis, Normandie, 2019. http://www.theses.fr/2019NORMR075/document.
Full textFor past several decades, researchers have been interested in understanding traffic evolution, hence, have proposed various traffic models to identify bottleneck locations where traffic congestion occurs, to detect traffic patterns, to predict traffic states etc. Most of the existing models consider traffic as many-particle system, describe it using different scales of representation and explain its evolution quantitatively by deducing relations between traffic variables like flow, density and speed. Such models are mainly focused on computing precise information about traffic using acquired traffic data. However, computation of such precise information requires more processing resources. A way to remedy this problem is to consider traffic evolution in qualitative terms which reduces the required number of processing resources. Since traffic is spatio-temporal in nature, the models which deal with spatio-temporal phenomenon can be applied in case of traffic. Such models represent spatio-temporal phenomenon from qualitative as well as quantitative standpoints. Depending on the intended application, some models are able to differentiate between various entities taking part in the phenomenon, which proves useful in case of traffic since different objects like vehicles, buildings, pedestrians, bicycles etc., directly affecting traffic evolution, can be included in traffic models. Qualitative spatio-temporal models consider the effects of different entities on each other in terms of spatial relations between them and spatio-temporal evolution of the modeled phenomenon is described in terms of variation in such relations over time. Considering different traffic constituents and spatial relations between them leads to the formation of a structure which can be abstracted using graph, whose nodes represent individual constituents and edges represent the corresponding spatial relations. As a result, the evolution of traffic, represented using graph, is described in terms of evolution of the graph itself, i. e. change in graph structure and attributes of nodes and edges, with time. In this thesis, we propose such a graph model to represent traffic. As mentioned above, one of the applications of existing traffic models is in detecting traffic patterns. However, since such models consider traffic quantitatively, in terms of acquired traffic data, the patterns detected using such models are statistical (a term employed by Pattern Recognition researchers) in the sense that they are represented using numerical description. Since graph-based traffic model proposed in this thesis represents the structure of traffic, it can be employed to redefine the meaning of traffic patterns from statistical to structural (also a term from Pattern Recognition community). Structural traffic patterns include different traffic constituents and their inter-links and are represented using time-varying graphs. An algorithm to detect a given structural traffic pattern in the spatio-temporal graph representing traffic is proposed in this thesis. It formalizes this problem as subgraph isomorphism for time-varying graphs. In the end, the performance of the algorithm is tested using various graph parameters
Le, Men Camille. "Segmentation Spatio-temporelle d'une séquence d'images satellitaires à haute résolution." Phd thesis, Ecole nationale supérieure des telecommunications - ENST, 2009. http://pastel.archives-ouvertes.fr/pastel-00658159.
Full textCaron, Pierre-Yves. "Étude du potentiel de OLAP pour supporter l'analyse spatio-temporelle." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq33593.pdf.
Full textPériard, Larrivée Yann. "Irrigation spatio-temporelle de la laitue romaine en sol organique." Thesis, Université Laval, 2012. http://www.theses.ulaval.ca/2012/29075/29075.pdf.
Full textLempereur, Raymond. "Analyse spatio-temporelle des pluies sur le site de Nancy." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb376151947.
Full textMoreno, François. "Organisation et fonctionnement hydrobiologique d'écosystèmes estuariens tropicaux : variabilité spatio-temporelle." Montpellier 2, 2003. http://www.theses.fr/2003MON20197.
Full textBoivin, Arnaud. "Disponibilité spatio-temporelle et transfert des pesticides dans le sol." Vandoeuvre-les-Nancy, INPL, 2003. http://www.theses.fr/2003INPL069N.
Full textAvailable pesticides in soils can be transferred by sail mobile water and contaminate water resources. Our aim was to assess the behaviour of different sail-pesticides combinations ranging from laboratory to field scale, and lasting from minute to season in order to assess the relevance of fixed parameters. Sorption/desorption processes control pesticide immediate availability. Batch sorption and desorption experiments were performed with 13 soils and 5 molecules. Experimental data indicated a gradient in sail sorption for the five molecules : trifluraline >> 2,4-D > isoproturon > atrazine >> Bentazone. Sorption was greatly influenced by naturally occurring sail pH whereas sail organic matter governed the adsorption of the four other compounds. Sorption and desorption are dynamic processes that interact with the compound degradation. Ln the soils, residues can be extractable or not. Bentazone diffusion, linked to its solubility, conduces to its physical entrapment in the sail matrix whereas the larger mineralization of the 2,4-D molecules restricted its availability. At the field scale, sail hydrodynamics controls the behaviour of the applied pesticides. The monitoring of drainage water quality has indicated intra and inter-seasons variations linked bath to sail and molecule physico-chemical properties. Laboratory parameters are inadequate to assess processes complexity at the field scale. Transfer simulations conduced by using the mechanistic, stochastic model AgriFiux© have provided coherent results
Bouchard, Philippe. "Dynamique spatio-temporelle des peuplements ichtyologiques de la Durance aménagée." Aix-Marseille 1, 1996. http://www.theses.fr/1996AIX11080.
Full textFadili, Jalal. "Analyse spatio-temporelle des signaux d'activation cerebrale en irm fonctionnelle." Caen, 1999. http://www.theses.fr/1999CAEN2059.
Full textBRASSELET, ETIENNE. "Manipulation optique spatio-temporelle non resonnante de cristaux liquides nematiques." Paris 11, 2001. http://www.theses.fr/2001PA112010.
Full textMénager, Loïc. "Traitement optique de signaux radio-fréquence par holographie spatio-temporelle." Paris 11, 2000. http://www.theses.fr/2000PA112351.
Full textFoulon, Xavier. "Simulation spatio-temporelle des chantiers de batiment : le prototype sic." Chambéry, 1998. http://www.theses.fr/1998CHAMS030.
Full textNGUYEN, ANH-DUNG. "Caracterisation spatio-temporelle de la matiere dans la fragmentation nucleaire." Caen, 1998. http://www.theses.fr/1998CAEN2024.
Full textForet, Guillaume. "Segmentation spatio-temporelle d'objets vidéo en vue de leur caractérisation." Grenoble INPG, 2003. http://www.theses.fr/2003INPG0082.
Full textAlonso, Lise. "Hétérogénéité spatio-temporelle du microbiote de la grotte de Lascaux." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSE1136/document.
Full textAnthropisation is the main source of disturbance in the caves, and in the cave of Lascaux it has led to the proliferation of microorganisms and alterations of the wall threatening its conservation.The objective of this thesis was to better understand the ecology of microorganisms colonizing the cave of Lascaux, by identifying its microbial community at different spatio-temporal scales, to characterize the factors that structure this community and to study its functional dynamics in using high throughput sequencing of nucleic acids, a new approach to Lascaux.A regional comparison of different Dordogne caves, more or less anthropised was carried out, then at a local scale with the study of Lascaux rooms, the Passage to evaluate the role of mineral substrates, and the Apse which presents two types of alterations (black spots and dark areas).Our results show that anthropogenic caves (including Lascaux) have particular microbial communities. The mineral substrate structures the Passage community more than the presence of spots. In the Apse, although dark areas are visually different from black spots, microbial communities show strong similarities, including the role of interactions between collembolans, black fungi, and bacteria. Finally, the metatranscriptomic profiles differ according to the rooms and the presence of spots.This project has made it possible to characterize the ecology of the Lascaux microbial community and to better understand the microbial functioning of the cave
Gotteland, Cécile. "Dynamique spatio-temporelle de la contamination environnementale par Toxoplasma gondii." Thesis, Reims, 2013. http://www.theses.fr/2013REIMS022.
Full textToxoplasmosis, caused by the parasite T. gondii, is a zoonosis with a complex life cycle as the pathogen requires several different species to achieve it cycle. Felids, in particular domestic cats, are the definitive hosts of the parasite and when infected they can shed millions of oocysts in the environment. All warm blooded animals, including humans, are potential intermediate hosts. Host species can be infected through vertical transmission or by ingesting contaminated tissues or oocysts present on environmental substrates.My goals were: I) to precisely measure the frequency and spatial distribution of the environmental contamination to T. gondii in a rural area, ii) to estimate the prevalence and the spatial distribution of the parasite in the local community of rodents, iii) to identify the main factors driving the spatial structure of the environmental contamination and finally, iv) to assess the importance of the environment as a transmission source for animals and humans.First, we found a high frequency of contaminated soil samples (29%) that were largely distributed across the whole area, and, we found a similar spatial gradient of decreasing contamination with increasing distances from buildings for soils and rodents. Altogether, the results obtained allowed to identify and rank the determinants of the spatio-temporal dynamics of the environmental contamination to T. gondii. The agent-based model showed the primary role of the spatial configuration of human habitat, which, through its impact on the spatial structure of domestic cat populations, determines the frequency and distribution of the hot spots of soil contamination. Thus, in rural areas, the high level of contamination within and around agricultural buildings suggests that infection risks for humans are important, either indirectly through the consumption of contaminated meat or directly due to the ingestion of oocysts contaminating earth, water or vegetables
Rosendale, Morgane. "Visualisation et perturbation de la dynamique spatio-temporelle de l’endocytose." Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0071/document.
Full textClathrin mediated endocytosis (CME) is a fundamental process of all eukaryotic cells. At the level of the plasma membrane, it is characterized by the formation of deep invaginations resulting in the creation of small vesicles after membrane scission by dynamin. In the central nervous system, it is involved in the expression of synaptic long term depression, a proposed cellular correlate of learning and memory. The complex morphology of neurons and the precise timing of neuronal firing suggest that endocytosis may be spatially and temporally regulated in those cells. The aim of the work presented here was to develop new tools to visualize and perturb CME in order to study such regulation. The first tool to be characterized was pHuji, a genetically encoded red pH-sensor. I used it in combination with an existing green pHsensor to demonstrate that in NIH-3T3 cells, the β2-adrenergic receptor was internalized in a subset of vesicles containing the constitutively endocytosed transferrin receptor. The second tool is a new imaging method that allowed me to monitor the endocytic activity of optically stable clathrin coated structures in hippocampal neurons. I was thus able to visualize for the first time the kinetics of internalization of AMPA-type glutamate receptors under plasticity inducing conditions. Finally, I set up an assay combining imaging and cell dialysis in order to develop a specific peptide-based inhibitor of CME. Using dimeric peptides, I found that the interplay between dynamin and its binding partners relies on multimeric interactions. Altogether, this work provides a toolbox to decipher the mechanisms of vesicle formation with high spatial and temporal resolution
Meloni, Sylvie. "Simulation et mesure du rayonnement transmis sous de jeunes merisiers en système agroforestier : analyse quantitative et variabilité spatio-temporelle : analyse quantitative et variabilité spatio-temporelle." Clermont-Ferrand 2, 1996. http://www.theses.fr/1996CLF21868.
Full textLamarche-Perrin, Robin. "Analyse macroscopique des grands systèmes : émergence épistémique et agrégation spatio-temporelle." Phd thesis, Université de Grenoble, 2013. http://tel.archives-ouvertes.fr/tel-00933186.
Full textChiffaudel, Arnaud. "Dynamique spatio-temporelle de la convection à bas nombre de Prandtl." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37612735n.
Full textMarteil, Olivier. "L'organisation spatio-temporelle des politiques technologiques : application aux technologies de l'information." Rennes 1, 1995. http://www.theses.fr/1995REN11013.
Full textThe aim of the phd consists in the elaboration of a theoritical frame work explaining how to organise public authorities initiatives in order to promote the technical progress within the national economy, taking into account the spatial and temporal dimensions of innovation processes. By coupling the notion of techno-economics network (ten) with the taxonomy of technology policies, it emerges that the success of the japanesse experience oriented to a "mission of diffusion" could constitute a referential for countries in search of an effective mutation of the state industrial action. This analysis is based on the building of a model identifying the ifnormation structure related to the dynamics of TENs which articulate interactions between the policy maker, the targeted beneficiaries and the whole national system of innovation. We introduce a spatial dimension within this model reflecting the public role ont he management of systemic frictions between innovative actors and territories. Moreover, the will of public authorites to build political areas bordering on techno-economics areas shaped by innovative actors, allows to wonder about the modalities of the sharing of the decision-making process between different public authorities which acting on differenciated level s of territorial competency, acting on differenciated levels of territorial competency, wish to implement a common strategy of "mission of diffusion"
Chiffaudel, Arnaud. "Dynamique spatio-temporelle de la convection a bas nombre de prandtl." Paris 7, 1988. http://www.theses.fr/1988PA077037.
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