Dissertations / Theses on the topic 'Transfert de technologie – Maroc'
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Merzouki, Mohammed. "Le Maroc dans les rapports Nord-Sud : dépendance et dialogue." Montpellier 1, 1986. http://www.theses.fr/1986MON10046.
Full textAny country of the third world, recently liberated from the colonial domination, finds itself confronted to its underdevelopment and to its dependency on the developed countries. The mean of a possible struggle against these latters is a political action at two levels : at a national level by orientating the politico-economical decision towards the national development and at an international level in order to define again the international relations. Soon after its decolonization, morocco had to choose between two strategies : a strategy of a graduated severance with the established order by the protectorate and with the system of the world economy. Secondly, a strategy of adaptation led by a spirit of conciliation with this order and with this system. Being the first to be in confrontation with the reality, harmed by an unfavorable political balance of power, handicapped by its own contradictions and the political ambiguities of its authors, the strategy of severance has only worked for two years. At work since then, the strategy of adaptation has reproduced, if not aggravated, the dependency and the underdevelopment of morocco. With the emergence of the contesting vague of the north-south relations, its supporters have thought it is a good thing to join the movement which is in favour of the international economical new order without taking however an active part in it, or more precisely without surrounding its different authorities with the same attention, and above all, without taking the trouble of gathering the national conditions (internal reforms) and evaluating the international political chances (the developed countries opposition) to realize its objectives. In concrete terms, the result is that the movement has completely failed. .
Benabdelhadi, Abdelhay. "Comportements stratégiques des petites et moyennes entreprises marocaines dans le processus d'apprentissage technologique." Paris 10, 2000. http://www.theses.fr/2000PA100080.
Full textOuaja, Raouf. "Stratégies et problématique de transfert de technologie et de savoir-faire dans l'industrie agro-alimentaire : cas de la Tunisie et du Maroc." Paris 9, 1987. https://portail.bu.dauphine.fr/fileviewer/index.php?doc=1987PA090050.
Full textOur purpose is to analyse the strategic aspect of technology for firms from developed countries, dealing with agribusiness and their relationship with firms in developing countries. We have based our study on the case of two countries : Morocco and Tunisia, and we have tried to show that the need of these countries for technology in the field of agribusiness is very high. Many firms in developing countries ressort to industrial cooperation for the achievement of projects which are vital for their development. In the course of this study we also tried to evaluate the importance of technology transfer in the strategy of the firms which transfer it, and the impact it has on their expansion. What are the problems encountered in industrial cooperation? To answer this question we have studied some technology and know-how transfer experiences carried out by french or other europeen firms in the maghreb. Then we have asked ourselves how efficiently technology transfer was carried out. Since both parties seem to have different interests, our work is an attempt to propose solutions to these problems and to debate on more elaborate modalities for technology and know-how transfer which might be profitable for both partners
Moumni, Larbi. "Dynamique des filières technologiques et développement industriel : application à l'industrie agrochimique marocaine." Montpellier 1, 1988. http://www.theses.fr/1988MON10044.
Full textOuaja, Raouf. "Stratégies et problématique de transfert de technologie et de savoir-faire dans l'industrie agro-alimentaire cas de la Tunisie et du Maroc /." Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb376085867.
Full textCotte, Michel. "Innovation et transfert de technologies : le cas des entreprises de Marc Seguin, France, 1815-1835." Paris, EHESS, 1995. http://www.theses.fr/1995EHES0102.
Full textStreubel, Henning. "Technologietransfereinrichtungen in Deutschland und in Frankreich /." Wiesbaden : Deutscher Universitäts-Verlag Wirtschaftswissenschaft, 2000. http://catalogue.bnf.fr/ark:/12148/cb38881456g.
Full textNinel, Josiane. "L'objet dans les contrats de transfert de technologie." Montpellier 1, 2000. http://www.theses.fr/2000MON10041.
Full textKoutsiouris, Vassilis. "Les contrats de transfert de technologie en Grèce." Paris 2, 1992. http://www.theses.fr/1992PA020089.
Full textThe technical and economic progress in greece is closely linked to contracts of transfer of foreign technology, owing to a lack of local research and development programmes. The regulation of these contracts and the elaboration of a local development policy should take into account the various aspects of the european community's laws (especially concerning the competition laws), but this creates problems because of the disparity in the levels of development of greece and of other states of the common market
Lahlou, Loubna. "Les Écoles Supérieures de Technologie marocaines : entre le professionnel et l'académique." Paris 10, 2004. http://www.theses.fr/2004PA100063.
Full textDurand, Rodolphe. "Management strategique des ressources et performance des firmes. Une etude des entreprises manufacturieres francaises (1993-1996)." Jouy-en Josas, HEC, 1997. http://www.theses.fr/1997EHEC0050.
Full textThis research is focused on the explanation of the determination of firm performance. It is based upon the theoretical framework called the + resource based stream ;. This stream of research contains two approaches : the resource based theory and the evolutionary economics. This work presents the first empirical study of the resource-based stream, applied at the level of the french manufacturing industries. We used the bank of france database called sesame. The main sample hase 2875 firms. The statistical model used is lisrel. Moreover, an original simulation model was developed, based on the object languages, in order to test the influences of temporal determinism on the firms resources endowment. The empirical results show that both the non-imitability and the non- transferability of the productive resources sustain the firm performance. Moreover, the exchange relationships, with suppliers and customers, when non- transferable enable the firm to appropriate idiosyncrasic rents. The internal coordination, within the firm, reinfoces the resources properties that lead to performance
Fertahi, Saïf ed-Dîn. "Simulation et optimisation des systèmes de production de l’eau chaude sanitaire solaire." Thesis, Pau, 2019. https://tel.archives-ouvertes.fr/tel-02528278.
Full textThe world market for solar water heaters (SWH) is in great expansion. In fact, SWHs have become a challenging alternative system to gas and electric heating devices, because of their low CO2 emissions and their explicit involvement in the reduction of the building’s electric bills. L’institut de recherche en énergie solaire et énergies nouvelles (IRESEN-Morocco) is actually providing the necessary funding support to promote research and development field of SWHs in Morocco. Hence, in February 2016, SOL’R SHEMSY project has been defined in order to design and commercialize the first SWH integrating Evacuated Tube Collectors (ETC) with heat pipes, under the constraints of being accessible to the Moroccan public users. For the time being, several technologies of solar collectors with different brands are commercialized in Morocco such as flat plat collectors (FPC) and Evacuated Tube Collectors (ETC), besides to thermosyphon and forced circulation SWHs to convert solar energy to thermal energy, in order to produce hot water with the temperature required in several applications (individual, collective, industrial and the tertiary applications). However, a serious challenge of adjustment, integration and technology transfer should be considered before importing SWHs with ETC into the Moroccan market from supplier countries such as China, Spain, Germany and Turkey described as the leading manufacturer of SWH in the world. Indeed, the imported SWHs in Morocco presented thermo-mechanical failure modes after a short period of use such as the limestone deposited inside the storage tanks, corrosion and cracking of their inner shell... Taking into account the challenge of adjustment, integration and technology transfer of SWHs in Morocco is necessary, because the conditions of use differ from one country to another in terms of climatic conditions, which can be summarized in solar radiations, ambient temperature, wind velocity and the percentage of humidity in the air. In addition, the consumer's random consumption profile usually affects the thermal efficiency of the collector field and the overall solar fraction of SWHs.The main aim of this thesis is to carry out numerical simulations and optimizations of SWHs taking into account the techno-economic context of Morocco and its intrinsic weather conditions. Two simulation approaches were used to achieve this purpose. The first approach was based on unsteady Computational Fluid Dynamics (CFD) numerical simulation in order to enhance the efficiency of the heat pipes integrated inside ETCs and to increase the thermal stratification indicators of horizontal thermal storage tanks with submerged heat pipes. Finally, improve the storage tank’s structure using thermo-mechanical coupling simulations. The second approach is based on dynamic simulations, which have been performed to assess and optimize the energy performance of a collective hot water process intended to produce domestic hot water (DHW) under the climatic conditions of Fez city located in Morocco. Indeed, several parameters have been considered, in particular the effect of the storage tank volume, the brands of collectors and their technology from different manufacturers, the connection between the solar panel and the overall surface of the ETC and FPC which constitute the collector field etc
Enayati, Saeedé. "Cooperation industrielle et transfert de technologie : cas de l'Iran." Thesis, Nice, 2016. http://www.theses.fr/2016NICE0007/document.
Full textKnowledge and technology are key factors in the development and economic growth of all countries. At present, the creation of new technologies worldwide is the fact of a few rich countries only. Technological change is determined, largely, through the dissemination and the international transfer of technology. This study provides a comprehensive and detailed analysis on the subject of industrial cooperation and technology transfer to developing countries. Our study particularly focuses on Iran, a country geographically, politically and economically strategic. We have demonstrated the positive and negative consequences resulting from these cooperation on Iran’s economic growth, considering the key past events, current status and strategies for future development. We apply the Solow model (1956) as the basis of our econometric model to examine the impact of industrial cooperation of Iran on the country’s economic growth. In this regard, the Panel Data method is applied to a sample of 21 manufacturing industries in Iran, in a period of 23 years, from 1992 to 2013. The results of our model show that inputs of different industries; physical capital and human capital of Iran have significant positive effects on economic growth in the country, but the two main channels of industrial cooperation such as foreign investment and international trade have significant negative effects on economic growth of Iran. The effect of the interaction between foreign direct investment and trade is positive and significant for this country
Chikhaoui, Bardine. "Le transfert de technologie juridique : l'exemple du statut communal." Montpellier 1, 1985. http://www.theses.fr/1985MON10010.
Full textAbbas, Abbas. "Les aspects juridiques, politiques et économiques du transfert de technologie." Montpellier 1, 1993. http://www.theses.fr/1993MON1A001.
Full textDos, Santos Villar Vladilen. "Élaboration d'une méthode d'accompagnement de transferts de technologie : cas d'un transfert de technologie entre un laboratoire de recherche et une entreprise." Vandoeuvre-les-Nancy, INPL, 1992. http://www.theses.fr/1992INPL082N.
Full textRenai, Mohand. "Critique de la notion de transfert technologique : cas algérien." Paris 9, 1987. https://portail.bu.dauphine.fr/fileviewer/index.php?doc=1987PA090015.
Full textBoudhar, Abderrazzak. "Le transfert de responsabilité dans le transport maritime des conteneurs : en droit marocain et comparé." Perpignan, 2005. http://www.theses.fr/2005PERP0954.
Full textThe advantages of containerisation lie in the splitting up, the safety and comfort, brought to the goods, as well as the elimination -if not the reduction- of breakings during their circulation in a supply chain of containerised transport, at the points of transit from one mode to another. However, from these same advantages spout out the problematic of the transfer of responsibility in containerised transport, especially maritime, because of anonymity procured by the container to the goods which are carried inside and thus the difficulty in locating -time and place- of the damaging incidents. The celerity of execution of the transport operations, handling and transit of the containers, as well as the plurality of the operators, are the ingredients of these problems affecting the fluidity of the transfer of responsibility The various solutions undertaken find their sources in the national and international laws to encircle, beforehand, the constraints of containerisation and as well as possible to manage the dispute which results from this. The undertaking of the means of transport separately, jointly or overall, does not -till now- asset the consensus desired on the critical points, regarding some divergences on the adopted laws. The rational management of containerised transport, by the introduction of a legal culture, constantly brought up to date between operators, thus needed in order to reconcile its advantages and its disadvantages and this, by ensuring a follow-up brought closer to the physical transfers of the containers and by controlling the terms of private agreements concluded to this end
Ghazali, Ahmed. "L'Institution coopérative au Maroc des distorsions corrélatives au transfert d'un modèle étranger." Lille 3 : ANRT, 1989. http://catalogue.bnf.fr/ark:/12148/cb37597872t.
Full textGhazali, Ahmed. "L'institution coopérative au Maroc : des distorsions corrélatives au transfert d'un modèle étranger." Grenoble 2, 1987. https://pastel.archives-ouvertes.fr/tel-00529343.
Full textThis paper deals with the tranfer of cooperatives as a movement of ideas and as specific institutions of europeen origin to developing countries. This analysis is based on the cases of france and morocco. In both casses cooperation was translated in practice by residues normative or institutional. Both residues are manifested in the ethics and in the cooperative principles that the dominating doctrine present as having a universal vocation. That is why they translate in a model of cooperative institutions known for their universal vocation and regulated by specific formal rules. The outcome of this originality differs depending on whether thses cooperative institutions are considered in a context of a developed economy or in a context of an underdeveloped one. In the case of france the cooperatives are obliged to increasingly renounce their originality in order to maintain their role in the economy. This tendency is verified also in the speculiarity which reveals correlative alteration of the nature of the cooperatives and of their distinctive legal principles. In the case of morocco, the transfer of the model of the cooperative institution of europeen origin is manifested at the level of positive law in gestation at the present time. But at the socio-economic level, the cooperatives are hardly detached from the objectives and the activities of the state. This dependance as well as the socio-cultural condition proper to the moroccan society lead ti evident discrepencies between the imported model and the existing cooperatives in our country
Raymond, Molière. "Transfert de technologie de construction au Costa Rica, Coopérative d'habitation." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq21821.pdf.
Full textRivero, Espinola Carlos Luis. "Transfert de technologie agraire en Amèrique latine : Une étude comparée." Paris 3, 1993. http://www.theses.fr/1993PA030125.
Full textKouamé, Tano. "Croissance endogène et transfert de technologie dans une approche intégrée." Paris, EHESS, 1994. http://www.theses.fr/1994EHES0042.
Full textResearch and development and human capital accumulation which were so far seen as alternative engines of growth in the theory of endogenous growth are combined in a well behaved endogenous growth model. A north-south products life cycle with endogenous relocation of productive activities by northern firms is the proposed ; the model suggests that cheap labour and a technology base which is conducive to quality production form a joint determinant of foreign direct investment in developing countries. Human capital distribution is used as underlying factor explaining technological change through research and imitation in an occupational choice modelwhich suggests inter alia that legalizing imitation of technology can favour technical change in a developing country. Finally, north-south convergence of incomes is shown to be nonubiquitous, and the role or imitation of technology in north-south convergence is empirically assesed
Scull, William Lloyd. "The United States, the Federal republic of Germany and West-East advanced technology transfer : the limitations of strategic embargoes in the post W. W. II-era /." Genève : W. L. Scull, 1987. http://catalogue.bnf.fr/ark:/12148/cb35048790j.
Full textHendrickx, Céline. "Transferts de technologie inter-firmes : un renouvellement par l'analyse de la diffusion et de la création de technologie." Nice, 1995. http://www.theses.fr/1995NICE0009.
Full textThe expression technology transfer was, in the past, reserved for the north south transfer of technology. It is now used for studing the phenomenon inside the firm related to his industrial environment. So, we need to analyse the technology transfer within the framework of the industrial economics. The research has the aim to suggest a new reading of the notion of inter-firms technology transfer. This reformulation bases oneself on a critical reading of a relatively old technology transfer's literature. We use new theory relative to the firm's strategy and the productive capacity's acquisition. In the first part, the analytical principle of the transfer are discussed. Our analysis gives up the dichotomy between the technology's acquisition and the capacity's development. We try to offer a new vision of technology transfer which considers the technology transfer, not as a simple acquisition assimilation of an extern and specified technology, but as a process of assimilation and mastery defined as technology process of creation. So the technology transfer is no more an ordinary mechanism of assimilation, but this. .
Bidault, Francis. "Le prix des techniques : des principes à la stratégie." Montpellier 1, 1986. http://www.theses.fr/1986MON10051.
Full textTechnical knowledge, as industrial properties, are the matter of sales between firms. This thesis analyzes the principles of price determination and shows that actors behavior and actual transaction conditions lead to pricing policies which strongly depart from those principles. The conduct that is followed by firms in terms of technology pricing is thus to be related to the partners motivations and strategies
Roussel, Normand. "Radiophonie, technologie et transfert culturel : le cas de CKAC (1926-1930)." Thèse, Université du Québec à Trois-Rivières, 1991. http://depot-e.uqtr.ca/5472/1/000590887.pdf.
Full textLortie, Johanne. "Le transfert de la technologie des communications en Amérique du Sud." Thesis, University of Ottawa (Canada), 1989. http://hdl.handle.net/10393/5745.
Full textDray, Vincent Broder Albert. "Dans les mouvements de la modernité." S. l. : S. n, 2008. http://doxa.scd.univ-paris12.fr:8080/theses-npd/th0495260.pdf.
Full textAbdellaoui, Mohamed-Karim. "Croissance, ouverture et capacité d'absorption de la technologie : une analyse au travers des cas du Maroc et de la Tunisie." Pau, 2004. http://www.theses.fr/2004PAUU2009.
Full textInspite of a strong theoretical background, several methodological problems remain at the empirical point of view, which forbid simple and direct relation between openness and economic growth. By highlighting role of agents in the process of technologic diffusion and the consequences of such phenomena, the new growth theories emphasize the interaction between openness trade policy and human capital in the technological capability building. However, it is shown in the theoretical literature related to the underpinnings of the link between openness, economic growth and productivity that this relation is still not well established. We proceed in two stages. In the first one, macro-econometric analyses are carried out on the long term behavior of the openness variables to imports, exports and also the behavior of human capital based on gross rate of schooling. This approach is completed by integrating a decomposition of human capital (i. E. The structure of labor qualification) in the perspective of an aggregate production function, in a way close to the augmented Solow model. The econometric tests allow us to consider the critical role of human capital for economic growth in these countries. The stock of human capital appears to contribute to the long term economic growth. Moreover, it is shown that the interaction between economic growth and openness mobilize more labor qualification in the Tunisian case rather than the Moroccan one
Daaqili, Sidi Mohamed. "Mise en perspective des déterminants de l'adoption des TICE dans les établissements de l'enseignement supérieur privé : cas du Maroc." Thesis, Nantes, 2020. http://www.theses.fr/2020NANT3009.
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Plunket, Anne. "Evolution de la cooperation : contribution a l'etude des determinants des processus d'evolution et de selection de la cooperation technologique." Paris 11, 1999. http://www.theses.fr/1999PA111002.
Full textThis thesis proposes a theoretical framework to study the evolution of technological interfirm agreements. It applies directly evolutionary notions, namely the selection principle (lamarckian and darwinian) to the dynamics of agreements. The evolution of cooperation appears as the result of processes of adaptation and selection acting on three units of selection (the governance structure, the competencies-routines, the projects-strategies). These units depend on two selection environments: an internal environment determined by two interrelated dynamics : the evolution of cooperation as an input (contractuel arrangements and incentives to allocate ressources to the agreement) and as an output (products of cooperation such as the institutionalization process and the creation of ressources), and an external environment (institutional and economic context). These environments act on the three units of selection, i. E. On, respectively, the contractual (coordination potential, i. E. The market, hierarchy, cooperation trade-off), the cognitive (capacity to create new products and know how) and the economic dimension (capacity to generate profits) of the agreement. Thus, the evolution and survival of cooperation do not depend on a single selection criterion but on a set of selection criteria which jointly determine the reinforcement (i. E. Continuity) or the breach of the agreement. The mecanisms of selection explain the evolution of cooperation through adaptation and selection processes. The thesis is based on 25 case stydies of eureka agreements in the field of biotechnologies and new materials
Negrel, Jean-Luc. "Membrane protéique de nanofiltration : élaboration, caractérisation et propriétés de transfert." Montpellier 2, 1995. http://www.theses.fr/1995MON20065.
Full textCitérin, Johann. "Contribution à la technologie d'actionnement pour le rendu tactile." Evry-Val d'Essonne, 2007. http://www.biblio.univ-evry.fr/theses/2007/interne/2007EVRY0037.pdf.
Full textThe work aims at investigating innovative solutions for tactile display technologies, rendering both thermal and tactile sensations. Main achievements consist in devising thermal touch rendering prototype, based on TEM modules controlled by an accurate finite-difference simulation, and improving new actuators based on electroactive polymers, in order to make them suitable for tactile rendering. For thermal rendering, efficiency depends mainly on the accuracy of the thermal flows that must be reproduced. An accurate semi-analytical model of thermal flow between finger and materials was done, mixing both analytical and numerical simulation, to solve the problem of discontinuity of initial contact temperatures. It was validated and implemented in a multimodal rendering device in a virtual reality environment. For tactile rendering, efficiency depends mainly on the actuators, that must be small, soft. Polymer actuators based on new Interpenetrated Networks of Conductive Polymers were used. Several major improvements of former existing systems were needed Fabrication improvements: Ultra-fast polymerization with microwaves enabled a better reproducibility and a reliable fabrication process; it allowed also using of special masks to build various shaped integrated actuators. Design improvements: New actuator shapes, mixing rigid conductive electroactive parts and soft inert parts, were designed, leading to more efficient linear rather than bending deformations. A mechanical simulation tool enabled optimization. Other improvements include chemical interconnecting of the actuators in an all-in-one matrix, and increasing of the actuator speed and miniaturization
Grammig, Thomas. "Les relations entre savoirs et experts dans la cooperation industrielle." Paris, EHESS, 1996. http://www.theses.fr/1996EHES0506.
Full textThe analysis comprises the participant observation of two multilateral devlopment assistance projects. The first case study consists of an informal sector project, introducing new products and manufacturing processes to metal-working arti sans in westafrica. The second one concerns the introduction of power generation equipment in large-scale industry in mexico. The important difference in the sociocultural, political and technological contexts lead us to restrict the analysis to the internal logic of such development projects. First, the symbolic coherence of the communication between foreign experts and their counterparts is reconstructed, there by identifying the transformation of the nature of the technical know-how. The second step of the analysis shows how the communication dynamic determines the implementation of the technology and the degree of the transfer of know-how. The presence of the researcher is used by the participants to act upon the transfer and this utilisation allows in turn to identify their constraints on objectifying their relati onship. In both cases, the developmental content of these projects is effectively dematerialized in this relationship. This research proposes an alternative to the "intercultural situation" approach by demonstrating the hybrid nature of th e transactional relation in contemporary technical assistance
Thibaut, Eric. "Transfert de technologie : cas du CNRS : structure de la pensée créatrice autonome." Strasbourg, 2010. https://publication-theses.unistra.fr/public/theses_doctorat/2010/THIBAUT_Eric_2010.pdf.
Full textThis thesis a been performed at CNRS (Centre National de la Recherche Scientifique) in Directorate of Industrial Policy. If we take in consideration the economic theories on growth and innovation, the "new" politics and innovation of the French national system of innovation and the concept of "Open Science", the Technology Transfer Office (TTO) of the fundamental academic research struggle to find its place. This work offers to adjust the paradigm of the "inefficience" of the academic technology transfer by bringing out the endogenous and exogenous causes of the problematic of the "valorisation" of public research. We describe a real « Paradox ofValorisation and Innovation » by focusing on two fundamental facts of the difficulty of the academic technology transfer: the structure of knowledge and the proccss of creation (genesis) of the inventions. These empirical, quantitative and qualifying results claim for anothcr vision of the public technology transfer. This model constitutes an approach of "Quantic Vectorisation" of the transfer of technology. It is inspired by the theory of construction of the "La Pensée Vivante" ("Living Thought" - Rohrbach -1993) and by the "L'Esprit Scientifique" ("Scientific Spirit" - Bachelard -1961) on the way of construction of the thinking: made by "La Pensée Mémoire" (Memory Thinking), "La Pensée Inventive" (Inventive Thinking), "La Pensée Réflective" (Reflective Thinking) and "La Pensée Créatrice" (Creative Thinking). It is also inspired by the "Knowledge Management" (Nonaka -1994 and Prax -2001) and it allows us to propose elements to understand the process of the genesis of the invention
Scantland, Sylvie. "La télédétection et les ressources en eau : analyse du transfert de technologie." Thesis, University of Ottawa (Canada), 1991. http://hdl.handle.net/10393/7615.
Full textLhuillery, Stéphane. "Recherche et développement et transferts de connaissances technologiques : fondements empiriques et contributions économiques." Paris 13, 1996. http://www.theses.fr/1996PA131010.
Full textThrough econometric analysis, this thesis attempts to clarify and assess the way in wich industry has acquired and developed external technological knowledge. For what type of technological knowledge, does a firm increase its assimilation capacities ? How are these absorptive capacities structured by firms ? The abondance of french data on r&d activity, r&d tax credit, innovation and patents, allows us to ground and answer these issues
Rizoulieres, Bruno. "Couches de transfert et tribologie du laminage à froid des aciers inoxydables." ENSMP, 2000. http://www.theses.fr/2000ENMP0985.
Full textSurface aspect of cold rolled stainless steel strips depends critically on the lubrication regime in the roll bite and on the characteristics of transfer layers (or "roll coating") built up on work rolls. Controlling transfer phenomena is very important to achieve a finished product in accordance with "bright anneal" aspect specifications. Polished rolls and neat oil lubricants were used for transfer layer studies on an experimental rolling mill, on both ferritic and austenitic stainless steels in the "bright anneal" state. The observations and measurements can be analyzed in terms of lubricant film thickness at the inlet of the roll bite and stripe surface temperature at the outlet. Thus, depending on rolling conditions (speed, reduction) : Mixed boundary lubrication regime (stable mild rolling conditions) builds up a brown, thin, smooth layer (no roll roughness change in practice). It corresponds to a mild wear process of the strip, with tiny metal particles being transferred onto the roll surface and then oxidized. Lubricant film failure induces a thick, rough layer of metallic grey colour ("austenitic" layers are about twice as rough as 'effritic" ones). This is severe strop wear, whereby big particles are scraped off the strip, transferred to the roll surface ("austenitic" particles are about twice as thick as "ferritic" ones). Roll surface topographical defects (micro-cavities and micro-asperities) promote this transfer phenomenon. This is why rough work rolls increase severe build-up kinetics significantly. Furthermore : In the "bright anneal" state, the reduction that initiates transfer is lower for ferritic tha for austenitic grades. Simulation of industrial finishing passes on the experimental rolling mill proved that strip-work-hardening increases on both sides the range of reduction where midl transfer is obtained. During the rolling schedule, with usual neat oil lubricants, severe transfer is partly reversible : thick layers may be smoothed by wear and oxidation. Owing to very good friction-reduction properties, very high cooling power and detergency, o/w emulsions are a very attractive way of controlling roll bite heating and transfer under much more severe rolling conditions : trials on the experimental rolling mill proved their ability to generate the same gloss after "severe" schedules (increased reduction per pass) as standard lubricants during milders schedules
Legha, Ahmad. "Transfert de tolérances géométriques en fabrication : validation de modèles." Chambéry, 2005. http://www.theses.fr/2005CHAMS038.
Full textIn a first part, a presentation of the models of transfer of dimensions and tolerances of Design Office (DO) and manufacture are treated. In a second phase, the problems of transfer of tolerances in manufacture in 3D are treated with a new method being based on graphic tools such as the graphs of manufacture and the variations fields. This work is validated numerically by an example presented in a third part. Lastly, a statistical analysis of the measurements obtained on the series of parts carried out made it possible on the one hand to validate assumptions of composition of statistical laws of distribution, and to check on the other hand, the degree of correlation between the measured components of variation. The tools developed during this PHD, thus allow, treating the phase of industrialization of a product in 3D since the design drawing till the validation of the range of machining
Dweik, Jalal. "Modélisation moléculaire du transfert membranaire." Montpellier 2, 2008. http://www.theses.fr/2008MON20188.
Full textThe aim of this thesis is to better understand the physical and physicochemical phenomena involved in nano-confined aqueous solutions, especially the role of "solute-solute" and "solute-interface" interactions within nanopores. By a fundamental approach based on the meso- macroscopic physics of fluids, we study the ionic transport across the membrane pores using the “space charge model”. This model based on the nonlinear Poisson-Boltzmann “mean field theory”, takes into account the electrostatic interactions between the membrane and ions in solution. Understanding of Ionic transport and selectivity across nanofiltration membranes is only partial at this level of description. We therefore go beyond the meso and macroscopic approaches by performing "Molecular Dynamics" simulations, a method particularly well adapted to the nanoscale. We focus on a study of “Water/vapour” interfaces and “Water/nanopore” systems, more particularly effects due to the specific characteristics of molecules and ions: size, charge, polarizability. We study the distribution of the ions and molecules and their correlations/fluctuations. Our simulations reveal the important role played by atomic and ionic polarizability on the distribution of ions in aqueous solutions near interfaces and in nanopores. This effect may be at the origin of the filtration selectivity of nanoporous membranes for ions of the same charge valence and therefore must be better understood before being reliably integrated into mesoscopic theories of membrane transport
Kantari, Mohamed. "Les problèmes d'arabisation dans le primaire marocain (CM2) et la grammaire de transfert." Rouen, 1988. http://www.theses.fr/1988ROUEL055.
Full textThe questionning raised in this work deals with the teaching of classical Arabic to primary schools pupils who already have acquired a linguistic competence in their mother langue. First Arabic language and Morroco's dialects are replaced in their socio-historical and sociolinguistic environment. Then a sociolinguistic survey (whose population includes pupils and their teachers) puts light on the usage of classical arabic within and outside school. The last part deals with a transfert grammar as a global analysis approach. The elaboration of such a type of grammar has brought about deep analysis of verbal forms (primitive forms) both in dialectical and classical Arabic in order to show the differences and the similarities. Such a comparative approach is the application of some of the most important "transfert rules"
Bacchin, Patrice. "Formation et résistance au transfert d'un dépôt de colloi͏̈des sur une membrane d'ultrafiltration." Toulouse 3, 1994. http://www.theses.fr/1994TOU30172.
Full textEl, Mouatassim Zakia. "Capitaux arabes,technologie occidentale et perspectives de coopération trilatérale : illustré par le cas du Maroc." Paris 1, 1989. http://www.theses.fr/1989PA010022.
Full textSince the 1970s, a new concept of international economic relations was born giving ri se to new forms of cooperation. Trilateral cooperation aspires to formulate economic relations on a new basis, promoting development by establishing solidarity among the industrialized world, petroleum producing and exporting countries and the third world. This cooperation must take into account the mutual interests of the different parties. The third world countries could ensue rapid growth and development, the petroleum exporters would have an opportunity to invest their financial surpluses profitably, and the industrialized countries would benefit from significant outlets for their equipement and know-how. As the other development cooperation, not all the impli cations of trilateral cooperation were fully defined. This study endeavours to determi ne whether all the basic elements existed, and then to analyze their implications and their contribution to the level of development, morocco serving as a case in point. It has served to demonstrate the difficulties facing trilateral cooperation even when all its constituent elements were present. The arab capital has not taken up its as signed task of helping to finance the development. It has rather served to finance equipment suppliers and promote the sale of western technology, not always adapted to the developing countries. Trilateral cooperation, defined as a combination of finance, technology and development potential for the implementation of infrastructure project is characterized by weaknesses whi
Benseba, Djamel. "Le Transfert de la technologie pharmaceutique vers les pays en voie de développement." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb375959462.
Full textBissada, Youssef F. "Stratégie du transfert de technologie construction et utilisation d'un modèle prévisionnel et décisionnel." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb37596063d.
Full textBendaoud, Salah-Eddine. "Transfert international de technologie informatique dans le cadre d'un projet de coopération institutionnelle /." Thèse, Chicoutimi : Université du Québec à Chicoutimi, 1990. http://theses.uqac.ca.
Full textBenseba, Djamel. "Le transfert de la technologie pharmaceutique vers les pays en voie de développement." Paris 1, 1986. http://www.theses.fr/1986PA010009.
Full textPétron, Alfred. "Transfert de technologie, formation permanente et développement des personnes dans le monde agricole." Tours, 1991. http://www.theses.fr/1991TOUR2015.
Full textThe continuous production of scientific progress generates a permanent need for adaptation of the human in his environment, jointly with the diminushing number of the socio-actors, has been developed the settling up of intermediary bodies who have the ability to guide. A few breaking away from this hierarchical treelike organization try to give the power back to the people to be responsible for their own actions. Beeing marginalized is often the price you have to pay for these trends in autonomy. A self-other continous training seems to be the necessary interface between professional science and users. The exclusive adaptation compensating assignment of permanent training is then added to an increasing equilibrium for men living off the land
Sekola, Joseph. "Le transfert de technologie militaire non nucléaire, un aspect des relations Nord-Sud." Université Robert Schuman (Strasbourg) (1971-2008), 1986. http://www.theses.fr/1986STR30008.
Full textThe underdeveloped world (or 3rd world), both responsible and victim of so many tensions and conflicts, is attempting ot solve its own security problems by working out ambitious military programs. Through their purchases of modern armament, the underdeveloped countries hope to acquire and efficient and reliable defense, technologically proper and no longer backward. So as to avoid the political and financial expenditures of the said military programs, many underdeveloped countries require from their conventional military equipment providers some sort of cooperative aid in order to be able to build their own arms-industry. Hence the purchase of conventional armament becomes less important than munufacture proceedings and know-how and gives a new sharpness to the debate between north and south about military technology transfer. This concept (embracing both manufacturing licences and the setting up of co-producting systems by means of which northern and southern partners work together to manufacture different arms parts) is supposed to respect the different stages of apprenticeship. Affording underdeveloped countries a proper technological answer, in spite of their backward situation and immense needs, may serve as a stepping-stone to their advancement. Technological self-determination, for underdeveloped countries, depends from positive, realistic actions at a sub-regional, national and international level. Which means teaching a scientific staff and regional co-operation with an exchange of competences, together with a diplomatic action so as to revise 1883 "Convention d'union de Paris", and setting up a "good behaviour code" for technology transfer. Armament industry, by means of its technological and human connections with civilian society, becomes from now on an essential and favourable production parameter for future development