Dissertations / Theses on the topic 'Composant à double usage'
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Saidi, Rajaa. "Conception et usage des composants métier processus pour les systèmes d'information." Phd thesis, Grenoble INPG, 2009. http://tel.archives-ouvertes.fr/tel-00430497.
Full textDebezy, Anne-Laure. "Le contrôle des exportations des biens et technologies à double usage dans le secteur aéronautique et spatial." Toulouse 1, 2009. http://www.theses.fr/2010TOU10002.
Full textFor peace and international security reasons, high technology supplier states are developing through the Wassenaar Arrangement a system of export controls for dual use (military and civil) goods and technologies, the principles of which are to be followed at a national level. The analysis of the regulations of the European Union and the United States shows the impact of these controls on security and trade. Since their creation, these systems have been balancing between the preservation of state interests and the protection of trade interests. Export controls are regarded as a constraint by world companies because they are an obstacle to free trade. Faced with increasing international competition, exporters want their exchanges to be simplified by the means of a reduction of the measures of control, and through the implementation of a certification of recipient companies of dual use products. However, this attempt to give responsabilities to companies may go against the security target of export controls, because it is likely to involve a loss of responsability in these states' areas. Thus, this study will examine the direction that export controls will take : althrough free trade seems to have been favoured until now, the new international financial and economic context may involve a new deal. As free-market principles seem to give way to more protectionist considerations, States are bound to invest more in the export controls of dual use goods, and use this formidable tool in order to boost their economy
Romestant, Damien. "Le commerce international des matériels et produits sensibles." Montpellier 1, 2002. http://www.theses.fr/2002MON10070.
Full textIbraheem, Dimah. "La double émulsion - évaporation solvant à usage thérapeutique : étude systématique et encapsulation de biomolécules, protéines et acides nucléiques." Thesis, Lyon 1, 2014. http://www.theses.fr/2014LYO10069/document.
Full textBiomolecules such as proteins and nucleic acids are of great interest in immunotherapy and gene therapy such as cancers, AIDS, autoimmune disorders, X-linked severe combined immune deficiency and many other diseases. In order to target such objectives, the encapsulation and the targeting are incontestably necessary principally to protect biomolecules against rapid degradation and also to avoid side effects. Then, in this thesis, the encapsulation of proteins and DNA using double emulsion solvent evaporation technique was performed. But before the encapsulation, the state of the art of the encapsulation processes was performed and special attention has been dedicated to DNA and proteins encapsulation. Firstly, systematic study of double emulsion solvent evaporation process was investigated in order to point out the key parameters controlling the particles size and the colloidal stability. Secondly, the optimized formulation conditions leading to submicron colloidal was used for DNA and Proteins encapsulation. The DNA encapsulation was investigated as a function of DNA concentration and it was found total encapsulation of DNA without any modification of the colloidal properties. The protein encapsulation was examined using HAS and fluorescent proteins as model. The encapsulation efficiency was found to be high and reaches 100%. The use of fluorescent protein shows the total encapsulation and good distribution of proteins in polymer matrix. As a general conclusion, the high encapsulation efficiency of DNA and protein, reveled the compatibility of the used process to encapsulated hydrophilic biomolecules even in submicron size biodegradable colloidal submicron particles
Gutjahr, Sylvain. "Analyse des caractères d’intérêt morphogénétiques et biochimiques pour le développement des sorghos sucrés à double usage « grain-bioalcool »." Thesis, Montpellier 2, 2012. http://www.theses.fr/2012MON20061/document.
Full textSweet sorghum offers many advantages as an alternative to widely cultivated crops such as corn and sugarcane to produce biofuels: it is resistant to water stress, it requires few inputs; it has a shorter growth cycle compared to sugarcane in particular. Sorghum also exhibits a great genetic diversity and is genetically less complex than sugarcane. Finally, sorghum can be cultivated for dual‐purpose uses, using grains for food or feed and sweet juice for biofuel production. Hence, sorghum is a promising option to reduce the competition for land and (water) resource use between food and fuel, in particular in cropping environments with high drought and heat stress frequency, as in West Africa. However, stem sweetness is a complex trait prone to genotype x environment interactions (GxE). The metabolic, morphological and phenological mechanisms involved in the kinetic of stem sugar accumulation and its possible competition with grain filling are largely unknown or controversial in the literature. The present work is part of the European project Sweetfuel and aims at better understanding these mechanisms and contributing to define dual‐purpose sorghum ideotypes for soudano‐sahelian conditions.Based on field and greenhouse experiments respectively in Mali and France, it was found that sugars start accumulating in stem internodes at the onset of their elongation, i.e. potentially soon before the plant flowers. The successive accumulation of hexose and then sucrose in internodes could be dynamically explained by changes in the activity of key enzymes related to sucrose metabolism. In Mali, a field experiment performed on 14 genotypes, contrasted for photoperiod sensitivity and sown at three planting dates, highlighted the interest of increasing vegetative phase duration to increase sugar yield. This was explained first of all by the higher number of internodes that could expand during a longer vegetative phase, and thus, by the higher production of stem biomass, and, to a minor extent, by the longer time for internodes to mature and accumulate sugar (sugar concentration in the stem was however fairly stable across sowing dates). Also, vegetative phase duration and photoperiod sensitivity can be considered as two key parameters promoting stem sugar content before grain filling. In the same time, it was shown that stem sugar content kept remarkably constant between anthesis and maturity in most of studied genotypes and that the reduction observed for some genotypes was overcome with an early sowing. Moreover, sugar accumulation in the stem between flowering and maturity did not benefit from panicle pruning. These results together suggest that the competition for carbohydrates between stem sugar reserves and grain filling is weak; it is even weaker for big/large stem genotypes with huge sugar reserves in the stem that would buffer a post‐flowering allocation of sugar from the stem to the grains if required. This low competition was confirmed at a finer scale, as no differences were observed in the activity of key enzymes of sucrose metabolism between the sterile and the fertile line of a same genotype.This work demonstrates the potential of sorghum for dual‐purpose in particular for soudano‐sahelian cropping conditions and the interest of using its genetic diversity for this breeding purpose. It provides further knowledge for revisiting the phenotyping strategies to be adopted to investigate the genetic basis of sugar and grain production and their combination. The results are also currently used to improve the way the source‐sink relationships underlying this dual production are formalized in crop and plant models at CIRAD. Such models will be then useful to assist sorghum ideotype exploration for dual purpose
Abou, Latif Firas. "Identification du profil des utilisateurs d’un hypermédia encyclopédique à l’aide de classifieurs basés sur des dissimilarités : création d’un composant d’un système expert pour Hypergéo." Thesis, Rouen, INSA, 2011. http://www.theses.fr/2011ISAM0004/document.
Full textThis thesis is devoted to identify the profile of hypermedia user, then to adapt it according to user’s profile. This profile is found by using supervised learning algorithm like SVM. The user model is one of the essential components of adaptive hypermedia. One way to characterize this model is to associate a user to a profile. Web Usage Mining (WUM) identifies this profile from traces. However, these techniques usually operate on large mass of data. In the case when not enough data are available, we propose to use the structure and the content of the hypermedia. Hence, we used supervised kernel learning algorithms for which we have defined the measure of similarity between traces based on a “distance” between documents of the site. Our approach was validated using synthetic data and then using real data from the traces of Hypergéo users, Hypergéo is an encyclopedic website specialized in geography. Our results were compared with those obtained using a techniques of WUM(the algorithm of characteristic patterns). Finally, our proposals to identify the profiles a posteriori led usto highlight five profiles. Hypergéo users are classified according to their interests when the “semantic distance” between documents is applied
Carpentier, Émilie. "Le e variable dans le double doublage francophone : à la recherche des normes et usages des doubleurs québécois." Master's thesis, Université Laval, 2020. http://hdl.handle.net/20.500.11794/40226.
Full textThe French language "double dubbing" phenomen on gives rise to two different dubbing tracks for the same American movie: a French dubbed version from France and one from Québec. As a result of legislation in the two geographical regions, this practice provides an unparalleled opportunity to study the two dubbings from a sociolinguistic point of view. In Québec, the language of dubbing is often called "international French", but in reality, there exists no source officially describing the prescriptive or objective norms of this particular French, which is more of an ideology (Sanders, 1996: 113) originating from the dubber's representations of the French language. It has already been shown that the language of the Quebec dubbing is peculiar, due to the dubbers' desire to use a language both rooted in Québec and delocalized, which are two objectives that are difficult to reconcile (Reinke et Ostiguy, 2012, Reinke et al., 2017 et 2019). Indeed, Québec's dubbing seems to offer few features typical of Québec's French, even if several of these traits are now accepted in formal speech. In order to elucidate what type of norm is followed by the dubbers, endogenous orexogenous, the study of variable e is relevant, mainly because of its diatopic (Côté, 2012,p.260) and diaphasic variation (Lucci, 1978, p. 46). In order to shed light on the objective norms followed by dubbers, we will study how they use the variable e in a corpus composed of the transcriptions of 11 films and television series. The usage of the variable e will be analyzed according to geographical origin of the dubbing, register and film genre.
Lazarini, Patrick. "Traitement fibrinolytique et grossesse : à propos d'un cas de thrombose récidivante sur une double prothèse valvulaire aortique et mitrale chez une femme enceinte." Bordeaux 2, 1992. http://www.theses.fr/1992BOR2M083.
Full textRamoino, Luisella. "Les interactions normatives en matière de régimes de contrôle des exportations d'armement." Thesis, Université Côte d'Azur (ComUE), 2019. http://www.theses.fr/2019AZUR0025.
Full textArms, dual-use goods and technologies export control, is assuming growing importance in the current geopolitical context. In fact, the export of these goods, which has been increasing steadily over the past few decades, touches on highly sensitive ethical, economic, and strategic issues, attracting considerable media attention. The law governing the export of these goods must therefore be coherent and so far as possible intelligible in order to guarantee the legal security expected by states, citizens and exporting companies. Rules in this domain are constantly expanding at the international and regional levels increasing the risk of normative conflicts. Divergences appear between the internal norms of the states because of their belonging to distinct international and regional regimes and a divergent implementation in domestic law. Hence, the proliferation of texts and the instability of rules threaten the legal security becoming a factor of uncertainty for all the actors involved in control. This thesis aims to analyse the level of coherence of the legal framework relating to arms, dual-use goods, and technologies export control via a two-phase positivist approach, first examining the normative fragmentation determined by the plurality of control norms and standards, and then studying the legal harmonisation generated by the action of international and regional bodies in this field. This approach, which falls within the theories of the legal systems and legal pluralism, reveals a complex chain of normative interactions capable to highlight the “porosity” of the legal systems. Legal orders, from enclosed “arenas” become a space of encounter with number of normative exchanges, emphasizing the phenomena of “normative circulation”. Furthermore, the approach adopted shows the increasing trend of this legal framework towards progressive harmonization rather than disaggregation
Skvorchevsky, Alexander Evgenievich. "Modern requirements for electrohydraulic drives of combat and civilian vehicles." Thesis, Національний технічний університет України "Київський політехнічний інститут"; Механіко-машинобудівний інститут, 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/28264.
Full textGiacometti, Mathea. "L'évolution des dispositifs de contrôles des exportations de produits de défense de l'Europe : conséquences sur les relations entre Etats et entreprises." Paris 2, 2006. http://www.theses.fr/2006PA020073.
Full textIdrissi, Imane. "Contribution au Diagnotic des Défauts de la Machine Asynchrone Doublement Alimentée de l'Eolienne à Vitesse Variable." Thesis, Normandie, 2019. http://www.theses.fr/2019NORMR033/document.
Full textActually, the Doubly Fed Induction Generators (DFIG) are omnipresent in the wind power market, owing to their construction simplicity, their low purchase cost and their mechanical robustness. However, as any other electrical machine, these generators are subject to defects of different order (electrical, mechanical, electromagnetic ...) or of different type (sensor, actuator or system). That’s why, it is important to design an effective diagnostic approach, able to early detect, locate and identify any defect or abnormal behavior, which could undermine the healthy operation of this machine On the one hand, motivated by the observer-based fault diagnosis methods strengths, we proposed, in this thesis, a diagnostic approach for the faults detection, localization and identification of the DFIG used in variable speed wind turbine. This approach is based on the use of the efficient and widely used Kalman observers. The state estimation errors of the linear Kalman filter and the non-linear Kalman filters, named: The Extended Kalman Filter (EKF) and the Unscented Kalman Filter (UKF) are used as faults sensitive residuals. In order to avoid false alarms and to decouple faults from disturbances and noises, the faults detection is carried out by the analysis of the residuals generated, by the mean of statistical tests such as: Hinkley Page Test (PH) and DCS Test (Dynamic) Cumulative Sum). For the localization step in case of multiple and simultaneous faults, the Dedicated Observer scheme (DOS) and the Generalized Observer scheme (GOS) are applied. In addition, the fault level is determined in the fault identification step. Sensor faults, actuator and system faults of DFIG, are treated in this research work. On the other hand, a comparative study between the three Kalman observers proposed is performed. The comparison was done in terms of (1) the computation time, (2) the estimation accuracy, and (3) the convergence speed
Chevalier, Florian. "Conception, fabrication et caractérisation de transistors à effet de champ haute tension en carbure de silicium et de leur diode associée." Phd thesis, INSA de Lyon, 2012. http://tel.archives-ouvertes.fr/tel-01016687.
Full textMakhetha, Disebo Precious. "A comparative analysis of the usage of the concept of “beneficial owner” in South African double tax agreements." Thesis, 2014. http://hdl.handle.net/10210/9685.
Full textThe term “beneficial owner” is found in 64 of the 71 double tax agreements signed by South Africa. However, there is no definition of the term in the Income Tax Act or within the orbit of international taxation. There are international court cases in relation to the interpretation of the term. The fact that there are inconsistencies in the treaties signed by South Africa may result in treaty shopping opportunities. The study aims to define the term “beneficial owner”; to view other necessary acts and other forms of supporting legislature when interpreting a treaty; and subsequently, to explore the term as used in South African double tax agreements.
Chatchuchaikul, Suphruchaya, and Suphruchaya Chatchuchaikul. "The Double-edged Sword: The Roles of Cognitive Load and Social Capital on Facebook Usage Intention." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/7sjn2q.
Full text國立東華大學
企業管理學系
106
Facebook is the most popular social network site in the world. This study focuses on the roles of cognitive load and social capital that affect Facebook usage intention based on cost-benefit theory. This study examines the relationship among perceived website complexity, perceived interactivity, cognitive load, social capital, and Facebook usage intention. The targets of this research are Facebook users in Thailand. This research collected 280 surveys from Thai participants and the results indicated that perceived website complexity has significant and positive effects on intrinsic and extraneous cognitive load but has a significant and negative effect on germane cognitive load. Intrinsic and extraneous cognitive load has a significant and positive effect on Facebook discontinuous usage intention but intrinsic cognitive load has a significant and negative effect on Facebook continuous usage intention. On the other hand, germane cognitive load has a significant and positive effect on Facebook continuous usage intention but a significant and negative effect on Facebook discontinuous usage intention. Perceived interactivity has a significant and positive effect on social capital. Bridging social capital has a significant and positive effect on Facebook continuous usage intention but a significant and negative effect on Facebook discontinuous usage intention. Conversely, bonding social capital has a significant and positive effect on Facebook discontinuous usage intention.
Voarino, Nathalie. "Le concept de double-usage de la recherche : un outil diagnostique de l’analyse éthique des risques associés aux usages neuroamélioratifs de la recherche en neurosciences." Thèse, 2015. http://hdl.handle.net/1866/13803.
Full textTranscranial stimulation technologies – such as tDCS and TMS – currently provide promising therapeutic outcomes, as well as various cognitive improvements in healthy individuals, leading to different and relatively prospective neuroenhancement applications outside clinical or research contexts. In this thesis, a concept that has typically been associated with research regarding national security implications and prospects associated with a high level of risk – i.e., the concept of “dual-use” – will be deployed to analyze the risks of neuroscience applications being diverted from their primary research objectives, along with the related ethical concerns (e.g., autonomy, justice, physical integrity). By revising the dichotomous definition of dual-use research as involving either ‘good’ or ‘bad’ uses, I propose to extend the concept in order to consider neuroenhancement as a misuse of neuroscience research, with reference to the conflict between, on the one hand, protecting academic freedom and progress, and on the other, promoting security and public health. This concept is a pertinent diagnostic tool for the evaluation of risks associated with a neuroenhancement use of those technologies – and more especially tDCS – when considering how best to regulate these devices prior to the appearance of their utilisation, due to the precautionary principle inherent in dual-use research. This concept can also help to set out proactive and contextualized governance mechanisms based on the shared responsibility of a broad range of stakeholders, something that is necessary given the rapid advances in neuroscience research and the imminence of such devices coming onto the market.