Tesis sobre el tema "Contrôle du temps de travail"
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Girier-Timsit, Marianne. "Le décompte du temps de travail". Electronic Thesis or Diss., Paris 10, 2024. http://www.theses.fr/2024PA100024.
According to some legal professionals, the counting of working hours has had its day. Managers would not “count their time”, the counting would be linked to the “civilization of the factory”, and more structurally, time would no longer be a relevant standard for measuring work. To counter these doubts, it is a question of affirming, on the contrary, the permanent usefulness of counting working time. The question of the importance of counting working time is closely linked to that of the role and place of working time. Firstly, in a negative sense, these questions relating to the counting of working time arise mainly from the questioning of time as a tool for measuring and limiting work. On the contrary, it is by affirming the permanence of time to be able and to fulfill such functions that the interest and importance of counting working time are revealed. Whether measuring or limiting work, time can only fulfill these functions if it is counted. In other words, it is the counting of working time which allows time to fulfill its functions of measuring and limiting work. The interest in counting working time is revealed in the light of the generic function of time as a unit of conversion. Time indeed constitutes an objective and universal unit of conversion, whether it is a question of determining the employee's commitment, of determining and quantifying the salary, of protecting by a minimum hourly wage, or of guaranteeing the protection of the health and time of freedom. However, these functions of measuring and limiting work are intrinsically linked to the nature of the employment contract, defined and characterized by the subordination of the employee to the employer. Questioning the importance of counting working time will consist of questioning the relationship it has with the existence, formation and construction of the employment contract as characterized by subordination. In this study, we seek to identify the challenges of counting working hours, the ways of proceeding, the difficulties encountered and the solutions provided. To determine whether the counting of working hours is a condition of the employment contract, it is first necessary to examine to what extent the counting of working hours proves useful with regard to labor law. It is a question of affirming the need to carry out a count of working time, which arises from a multitude of statements in the service of which the count of working time intervenes. To assess whether positive law meets this need, it is then necessary to evaluate the obligation to count working time, and to see how this obligation is understood, addressed and imposed by labor law. It emerges that the counting of working hours is a consubstantial element of the idea of employment and a structuring element of labor law. And it remains such, even if it is attacked today. Labor law therefore strives to impose the counting of working hours. This is one of its essential dimensions. Moreover, even when it opens breaches in the boundaries of working time, as with the daily rate, it does not succeed in completely abstracting itself from the need for counting, and even hourly counting. Counting resists everywhere, since it must resist, since it is the essence of subordination and therefore the essence of the salaried employment relationship
Flautre, Anne. "Les remaniements temporels : le cas du compte épargne temps". Toulouse 2, 2002. http://www.theses.fr/2002TOU20045.
Social time patterns rhythm our daily activities to the point of creating a framework of constraints which is so strong that it is difficult to break away from them. The major position occupied by working time is such that it constitutes a dominant time which encompasses and defines all other temporalities. An analysis of the development of laws relative to working time and the way time is used shows that the construction of temporal norms combines political regulations and local regulations. The former fix the laws concerning time-saving provisions (law of 24 July 1994, "loi Aubry") with the aim of constityuting time accruals for alternative and personal projects. The latter fix the collective agreements with a view to defining the scope of authorised usage. With the 35-hour week, the tempral accruals are used for a threefold reorganisation: work is restored to its rightful place, domestic tasks ae redistributed within the couple and a third sphere of activities is invented, neither professional nor domestic; a space for real personal projects. In all cases, thes temporal arragements are gender-related. But this gender division is evolving with these temporal reorganisations; each one being the oppotunity to renegotiate male/female relations
Syll, Ousmane. "Rôle des diagnostics optiques en temps réel dans le contrôle d'une colonne d'extraction liquide-liquide type pulsée - comparaison expérience / modèle". Phd thesis, Paris 6, 2008. http://pastel.archives-ouvertes.fr/pastel-00004981.
Blanchet, Danick. "Analyse des facteurs de l'anxiété vécue chez les étudiants québécois au niveau collégial". Thèse, Université de Sherbrooke, 2011. http://savoirs.usherbrooke.ca/handle/11143/2836.
Ramamonjisoa, David. "Architecture de copilotage et de contrôle d'exécution basée sur un système expert temps réel". Compiègne, 1993. http://www.theses.fr/1993COMP574S.
Chérif, Asma. "Modèles de contrôle d'accès pour les applications collaboratives". Electronic Thesis or Diss., Université de Lorraine, 2012. http://www.theses.fr/2012LORR0217.
The importance of collaborative systems in real-world applications has grown significantly over the recent years. The majority of new applications are designed in a distributed fashion to meet collaborative work requirements. Among these applications, we focus on Real-Time Collaborative Editors (RCE) that provide computer support for modifying simultaneously shared documents, such as articles, wiki pages and programming source code by dispersed users. Although such applications are more and more used into many fields, the lack of an adequate access control concept is still limiting their full potential. In fact, controlling access in a decentralized fashion for such systems is a challenging problem, as they need dynamic access changes and low latency access to shared documents. In this thesis, we propose a generic access control model based on replicating the shared document and its authorization policy at the local memory of each user. We consider the propagation of authorizations and their interactions. We propose a optimistic approach to enforce access control in existing collaborative editing solutions in the sense that a user can temporarily violate the access control policy. To enforce the policy, we resort to the selective undo approach in order to eliminate the effect of illegal document updates. Since, the safe undo is an open issue in collaborative applications. We investigate a theoretical study of the undo problem and propose a generic solution for selectively undoing operations. Finally, we apply our framework on a collaboration prototype and measure its performance in the distributed grid GRID?5000 to highlight the scalability of our solution
Gérard, Frédéric. "L' élaboration d'une conviction en contexte d'incertitude cognitive : le choix français de la réduction du temps de travail pour lutter contre le chômage". Paris 4, 2004. http://www.theses.fr/2004PA040192.
How to explain the existence of a public policy in its given contents? How to explain its changes in time? To answer this double interrogation, we cross the border which separates policy analysis from the sociology of public action and we put forward the draft of an actionnist model. In our view, a policy is an attempt, by public decision makers, to make a loop between the system of expectations they assume in a specific network of public action and the evolution of reality that this network deals with. Consequently, if they resort to a public action, it is because there is a sufficiently grave gap between their system of expectations and reality, because they have alternatives and because one of them is perceived as relatively adequate with the reduction of his gap. When this public action introduces a major break in the course of the policy, it is because the public system of expectations is significantly altered, either by political impetus, or by policy oriented learning. We undertake to test this model of the "good reasons" on the ground of working time policies to fight unemployment on the one hand, we proceed to a rigorous, systematic and quantitative comparison of policies of this type followed in the states of Europe of the fifteen and in Norway, over the period 1978-2000, to show their causes. On the other hand, in a french monograph, we follow the successes, the failures and the re-formations of a "planning" project of working-time reduction since its elaboration, in the years 1975-1979, until its realization, in 1998, in the form of the first Aubry law on the "35 hours"
Chérif, Asma. "Modèles de contrôle d'accès pour les applications collaboratives". Thesis, Université de Lorraine, 2012. http://www.theses.fr/2012LORR0217/document.
The importance of collaborative systems in real-world applications has grown significantly over the recent years. The majority of new applications are designed in a distributed fashion to meet collaborative work requirements. Among these applications, we focus on Real-Time Collaborative Editors (RCE) that provide computer support for modifying simultaneously shared documents, such as articles, wiki pages and programming source code by dispersed users. Although such applications are more and more used into many fields, the lack of an adequate access control concept is still limiting their full potential. In fact, controlling access in a decentralized fashion for such systems is a challenging problem, as they need dynamic access changes and low latency access to shared documents. In this thesis, we propose a generic access control model based on replicating the shared document and its authorization policy at the local memory of each user. We consider the propagation of authorizations and their interactions. We propose a optimistic approach to enforce access control in existing collaborative editing solutions in the sense that a user can temporarily violate the access control policy. To enforce the policy, we resort to the selective undo approach in order to eliminate the effect of illegal document updates. Since, the safe undo is an open issue in collaborative applications. We investigate a theoretical study of the undo problem and propose a generic solution for selectively undoing operations. Finally, we apply our framework on a collaboration prototype and measure its performance in the distributed grid GRID?5000 to highlight the scalability of our solution
Cardoso, Ana Claudia Moreira Guimarães Nadya Araujo Hirata Helena Sumiko. "Temps de travail, temps de non travail". Saint-Denis : Université de Paris 8, 2009. http://www.bu.univ-paris8.fr/consult.php?url_these=theses/CardosoThese.pdf.
Thèse soutenue en co-tutelle. Texte seulement en portugais. Titre provenant de l'écran-titre. Bibliogr. p. 328-344.
Guerra, Matteo. "Le déploiement et l'évitement d'obstacles en temps fini pour robots mobiles à roues". Thesis, Ecole centrale de Lille, 2015. http://www.theses.fr/2015ECLI0024/document.
This dissertation work addresses the obstacle avoidance for wheeled mobile robots. The supervisory control framework coupled with the output regulation technique allowed to solve the obstacle avoidance problem and to formally prove the existence of an effective solution: two outputs for two objectives, reaching the goal and avoiding the obstacles. To have fast, reliable and robust results the designed control laws are finite-time, a particular class very appropriate to the purpose. The novelty of the approach lies in the easiness of the geometric approach to avoid the obstacle and on the formal proof provided under some assumptions. The solution have been thus extended to control a leader follower formation which, sustained from the previous result, uses two outputs but three controls to nail the problem. The Leader role is redesigned to be the reference of the group and not just the most advanced agent, moreover it has a active role slowing down the formation in case of collision avoidance manoeuvre for some robots. The proposed method, formally proven, makes the group move together and allow each agent to avoid obstacles or collision in a decentralized way. In addition, a further contribution of this dissertation, it is represented by a modification of the well known potential field method to avoid one of the common drawback of the method: the appearance of local minima. Control theory tools helps again to propose a solution that can be formally proven: the application of the definition of Input-to-State Stability (ISS) for decomposable sets allows to treat separate obstacles adding a perturbation which is able to move the trajectory away from a critic point
Cardoso, Ana Claudia Moreira. "Temps de travail, temps de non travail : les vécus quotidiens des travailleurs". Paris 8, 2007. http://octaviana.fr/document/130555762#?c=0&m=0&s=0&cv=0.
Esta tese é um estudo das vivências cotidianas de trabalhadores em relação ao tempo de trabalho e ao tempo de não trabalho. O locus de análise privilegiado é o espaço do local de trabalho. A pesquisa tomou como caso para estudo a Volkswagen do Brasil, em sua unidade de produção do ABC-São Paulo, exemplo emblemático de iniciativas e negociações dirigidas a flexibilizar a jornada de trabalho. A análise se concentra no período compreendido entre 1995 e 2005, quando foram intensas as mudanças com respeito à organização e gestão do tempo de trabalho. A tese se divide em duas partes. Na primeira, constante de três capítulos, revisa-se a literatura internacional sobre os modos de construção social do tempo e do tempo de trabalho, e apresenta-se o debate recente sobre duas experiências contrastantes, a da França e a do Brasil. Na segunda parte, formada por sete outros capítulos, apresenta-se inicialmente o contexto da Volkswagen do Brasil, com base na analise de material documental e de entrevistas com trabalhadores, dirigentes sindicais e gerentes da empresa; em seguida, analisam-se as vivências temporais cotidianas dos trabalhadores, com base em entrevistas semi-diretivas e diários de usos do tempo
This thesis is a study of daily life of workers regarding their experiences and discourses on the work time and the non- work time. The workplace is the privileged locus of analysis. The empirical research examines the case of Volkswagen-Brazil in its assembly plant in ABC region, São Paulo, emblematic example of initiatives and negociations driven to achieve flexible work conditions and employment relations. The analysis focuses the period 1995-2005 when most intense changes took place. The thesis is divided into two parts. The first part begins with a review of the national and international literature on time and work time as societal constructions; the following two chapters present the recent debate on two opposing experiences, France’s and Brazil’s. In the second part, formed by seven chapters there is an initial presentation of the context of Volkswagen do Brazil, based on the analysis of documental material as well as interviews with workers, union leaders and managers. The last six chapters analyze the daily temporal experience of different groups of workers based on semi-directed interviews and time diaries
Breheret, Jeanne. "Le travail à "temps partagé" /". Villeurbanne : ENSSIB, 2001. http://www.enssib.fr/bibliotheque/documents/dessid/rrbbreheret.pdf.
Notes bibliogr.
Guillaume, Cécile. "Les temps choisis du travail : dynamiques sociales d'un mode d'engagement au travail à temps partiel". Paris, Institut d'études politiques, 2000. http://www.theses.fr/2000IEPP0034.
Genin, Émilie. "La porosité des temps chez les cadres : Proposition d'un modèle d'interactions entre temps personnel et temps professionnel". Jouy-en Josas, HEC, 2007. https://pastel.archives-ouvertes.fr/pastel-00004610.
Managers and professionals in France are a category of workers which has experienced significant destabilizations for the last twenty years. Feminizations, the rise of professionals, unemployment, the crumbling of the “trust contract”, are all elements which have impacted the traditional model of the “total commitment” of managers to their company. Work-life balance and the organisation between work and the other times of life (family time, leisure time, etc) constitute new challenges for the firms aiming at retaining their talents. At the same time, the redesigned role of managers and in the organisation, the acceleration of the rhythm of technological and organisational changes, contribute to the decreased boundaries between work and personal life. Consequently, I have developed the concept of time porosity to enlighten the relationships between professional and personal time. Time porosity corresponds to the phenomenon of overlap and interference between personal temporalities and professional temporalities, and reciprocally. This research aims to identify various types of time porosity and to understand the determinants of these phenomena. Among these determinants, gender appears to be fundamental. Thus, the systematic comparison between time porosity among women and men is a key point of this study. It uses qualitative and quantitative methods. After thirty interviews, a reliable questionnaire was constructed to measure time porosity and its determinants (150 questionnaires). The results confirm that time porosity largely depends on gender. Time porosity of women is mainly correlated to their salary and their position in the company. Time porosity of men not only depends on the characteristics of their job but is also highly correlated to a positive attitude regarding work at home and flexibility
Noguera, Florence Savall Henri. "Management stratégique du temps de travail". Lyon : Université Lumière Lyon 2, 2002. http://demeter.univ-lyon2.fr:8080/sdx/theses/lyon2/2002/noguera_f.
L'annexe 6 étant confidentielle, elle n'est pas diffusée. Thèse : 2002LYO22002. Titre provenant de l'écran-titre. Bibliogr.
Johansson, Anja. "La détermination du temps de travail effectif /". Paris : LGDJ, 2006. http://catalogue.bnf.fr/ark:/12148/cb409387773.
Courbier, Sonia. "Du travail à temps partiel contraint au temps choisi : au-delà de l'expérience hollandaise". Grenoble 2, 2002. http://www.theses.fr/2002GRE21026.
Gadbois, Charles. "Conditions temporelles et régulation de l'activité au travail et hors travail". Paris 5, 1988. http://www.theses.fr/1988PA05HOZ1.
The effects of temporal factors on worker's behavior are analyzed for three classes of temporal conditions : temporal requirements of the task (machine-paced work, time sharing), variability of human functionning (circadian rythmicity), interactions between time of work and off-the-job life (especially concerning shiftwork). Worker's responses to time requirements implies coordination of analyses at three levels : precise identification of situation's parameters for temporal aspects but also for psychological functions ; evaluation of importance of performance as regard time criteria and cost associated to success ; strategies of regulation used by the subject according to the balance between risks of failure and workload. Furthermore analysis of the activity under time pressure must be conducted in the frame work of the global system including work and out-of-work activities. Also social meaning of work needs effective coordination between analysis of worker behaviorin the line of man-machine system-and analysis of worker motivation concerning the activity under temporal constraints. Systematic articulation of the frameworks of ergonomics and social psychology is necessary for the progress of research on workers' response to temporal factors in work situation
OGER, OMBREDANE ISABELLE. "Reduction du temps de travail et metamorphoses du droit de la duree du travail". Nantes, 2001. http://www.theses.fr/2001NANT4010.
Noguera, Florence. "Management stratégique du temps de travail : instrumentation et impacts de l'aménagement-réduction du temps de travail : cas d'expérimentations". Lyon 2, 2002. http://theses.univ-lyon2.fr/documents/lyon2/2002/noguera_f.
Bruere, Jean Christophe. "L'Etat et le contrôle du travail temporaire". Paris 2, 1993. http://www.theses.fr/1993PA020144.
Temporary work constitutes a relationship between a business which undertakes an atypical work contract, while being bound to the third by a standars commercial contract. Employment of this type has drawn the attention of public authorities for over twenty years. Conscious of this impact as a bargaining counter in social policy where it challenges-the contract of an undetermined duration-an in economic policy where is offers business flexibility and a means of fighting unemployment. The states has sought to regulate temporary work through specific texts and machanisms. These apply to the activity of the business enterprise engaged in temporary work, the working relationship created between this business and the temporary employe and the trade relationsheap between the business engaged in temporary work and the client business. The legislation portecting the temporary employee embolies a law of equality between a temporary employee and a permanent employee. The equality forms the essential foundation of the state's control over temporary work. The origins of this equality can be found both in national law as espressed in the various constitutional texts since 1789 to the present day and in extranational law. The international labour organization and above eec legislation, which is still evolving. A a detailed examination of the mecanisms by which the states exercices control over
Byrne-Sutton, Pascale. "Le contrat de travail à temps partiel /". Zürich : Schulthess Juristische Medien, 2001. http://www.gbv.de/dms/spk/sbb/recht/toc/338249656.pdf.
Tuchszirer, Carole. "Temps et partage du travail l'expérience belge /". Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb37610397m.
Thoemmes, Jens. "Vers la fin du temps de travail?" Toulouse 2, 1997. http://www.theses.fr/1997TOU20066.
The starting point of our research study is concerning the evolution of work-time which is embedded in the sociological framework about social times. Two positions have been adopted: the first one considers that work-time is only one of the components of the social temporalities of every day life: the second position considers work-time as a social construction combining references, practice and legal norms. The research object concerns the evolution of the nature and the way time norms are constructed. In this context work-time is still central, even if work-time arrangements are focussing more and more on employment. The results of the investigations show that the idea of time as a unique, homogeneous and stable reference cannot be maintained. As follows 4 reasons let us discuss about the end of the concept of work-time: 1) work-time spreads on a multiplicity of times, that is the main the result of an analysis of 680 agreements reached on the issue of work-time in a french region: there is a loose of centrality of duration of work-time and the end of the monopoly of state-intervention in fixing work-time. 2) nevertheless, the actors are reconstructing temporal forms by arrangements which show the passage from work-time to time of employment: our analysis of 11 businesses in france and 2 businesses in germany. 3) further, such agreements on work-time are found only to be formal; they imply a basic disagreement between employers and employees on the very concept of work-time. The times of production are in opposition to the times of every day life. This is indicated by the analysis of the referentials of the negotiation in 60 interviews conducted basically in france and germany. 4) finally, the last and forth reason concerns the existence of a time of subsistance in the industrialized countries. This time of subsistance is caracterized by fragmentation of professional activites (especially muli-employment) and motivated by the satisfaction of fundamental needs of subsistance. Our inquiries in germany, russia, the united-states and france show that this time of subsistance is directed against work-time defined above as unique social norm. This research, situated in the tradition of sociological thought, will be extended on a theoretical level especially by working on concept concepts used in this study, but also by a more detailed caracterization of the mult
Johansson, Anja. "La détermination du temps de travail effectif". Strasbourg 3, 2004. http://www.theses.fr/2004STR30013.
The effective working time can be determined either according to the pmductivistic logic counting the time which is productive for the employer ; or according to the timework logic counting the time during which the employee is at the employers disposal. Whereas in France the productivist logic prevailed until the 1990s, the jurisprudence, and later the law, then imposed a new definition of the effective working time according to the timework logic. However, the two logics exist at the same time. Within the ancient context of the productivistic logic, certain aspects toned down or even inftinged this logic, and within the context of the timework logic, which prevails today, some productivistic aspects still remain
Angeloff, Tania. "Le travail à temps partiel : question de temps ou redéfinition des représentations et du statut du travail des femmes ?" Paris 8, 1999. http://www.theses.fr/1999PA081668.
Le, Goff Bernard. "Inférence de contrôle hiérarchique : application au temps réel". Rennes 1, 1989. http://www.theses.fr/1989REN10060.
Morant, Jérôme de. "Contrôle en temps minimal des réacteurs chimiques discontinus". Rouen, 1992. http://www.theses.fr/1992ROUES024.
Boulingui, Jean-Baptiste. "Impact des nouvelles formes d'organisation du travail, issues d'un accord de réduction du temps de travail sur la vie au travail et hors travail des salariés picards ayant réduit leur temps de travail". Amiens, 2004. http://www.theses.fr/2004AMIE0004.
Pennetier, Arnaud. "Dynamique sociale du travail". Paris 5, 2001. http://www.theses.fr/2001PA05H060.
Labour is an indissociable notion from the history of Man that impregnates many aspects of his destiny. Although it may sometimes be reduced to principles, representations, meanings, applications and implications of all kinds, labour is essentially found at the heart of all social relations, which are characteristic of the solidarity process. However, labour seems to be subjected to a number of societal modifications deeply rooted in the extreme lability of social life whose various micro and macro-sociological expressions have become valuable tools in the survey of social life. Our task consequently consists of isolating within a field of study what our understanding of it underlies in our post-modern sociability
Mer-Mellerio, Suzanne. "La négociation collective et le temps de travail". Paris 2, 2002. http://www.theses.fr/2002PA020028.
Bentahar, Hachmi. "Commerce international et comptabilité en temps de travail". Paris 1, 1987. http://www.theses.fr/1987PA010015.
Tuchszirer, Carole. "Temps et partage du travail : l'expérience des belges". Paris 1, 1987. http://www.theses.fr/1987PA010030.
Ben, Tahar Hachmi. "Commerce international et comptabilité en temps de travail". Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb37602901p.
Roman, Bernard. "Organisation et gestion du temps de travail dans l'entreprise : le temps de travail, facteur de production, d'organisation, de compétitivité et d'emploi". Aix-Marseille 2, 1988. http://www.theses.fr/1988AIX24007.
The news work-time organizations represent one of the most interesting forms about the transformations which affect enterprises organizations. They could act for compatibilities between competitiveness and employment. It's for that, necessary to give to work-time organization in the enterprise a theoretical content and an economics way. Work-time may be a production factor because it determines and varies enterprises production capacities. It's an organization factor because it takes fluctuates forms for adaptation to market exigencies and to work-time offers by the workers. On condition to be determined in the enterprise, use like a competitiveness and adaptation tool, work-time organization offers interesting ways to advance news production which improve growth, work-sharing and work-market mobility. A new way is open for this subject around two points : the first is theoretical and develops the work-time like organization and economic factor; the second more operational, result in propositions to improve management practices and tools which answer to competitiveness and employment objectives
Roman, Bernard. "Organisation et gestion du temps de travail dans l'entreprise le temps de travail, facteur de production, d'organisation, de compétitivité et d'emploi /". Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb376182529.
Bonnet, Polèse Jacqueline. "Une étude exploratoire du vécu de travail des cadres à temps partiel : rôle de l'environnement immédiat de travail et du "hors travail"". Jouy-en Josas, HEC, 2003. http://www.theses.fr/2003EHEC0005.
Ouédraogo, Lucien. "Contrôle supervisé de systèmes à évènements discrets temps-réel". Thèse, Université de Sherbrooke, 2008. http://savoirs.usherbrooke.ca/handle/11143/1898.
Mekki, Hamid El. "Ultrasons laser, analyse temps-fréquence-énergie appliquée au contrôle". Châtenay-Malabry, Ecole centrale de Paris, 1994. http://www.theses.fr/1994ECAP0340.
Heritier, Bernard. "Contrôle en temps réel d'un imageur par résonance magnétique". Paris 11, 1987. http://www.theses.fr/1987PA112327.
Ben, Gaid Mohamed El Mongi. "Ordonnancement et contrôle optimal des systèmes temps-réel répartis". Evry-Val d'Essonne, 2006. http://www.biblio.univ-evry.fr/theses/2006/Interne/2006EVRY0018.pdf.
Traditionally, control design problems were decoupled from communication and computation problems in the study of distributed control systems. However, the considerable development of networks and embedded electronics generates new applications, where the control loop is subjected to communication and computation constraints. In particular, in many embedded and distributed control applications, communication and computation resources are limited. This situation affects several fields, ranging from the underwater robotics to the control of satellite clusters and the automotive industry. The behavior of these systems does not uniquely depend on the properties of the plant/controller couple, but also on the characteristics of the communication and computation means. In this thesis, a new approach for the optimal control and scheduling of distributed embedded control system was proposed, focusing on two main problems: the scheduling of the messages from the controller to the distributed actuators and the scheduling of the control tasks. In this approach, the control performance, expressed as a quadratic cost function, was used to evaluate the optimality of the resource allocation. The proposed approach aims at improving the performance of the controlled dynamical systems that are challenged to operate with limited communication or computation resources, assuming that the available resources are sufficient to ensure their stability. To this end, novel on-line and off-line scheduling algorithms were introduced; allowing improving the control performance, by allocating the available shared resources according to the needs of the controlled dynamical systems. These algorithms were designed in order to ensure a tradeoff between their computational complexity and their optimality. Their effectiveness was illustrated through various simulation examples
Orieux, Michaël. "Quelques propriétés et applications du contrôle en temps minimal". Thesis, Paris Sciences et Lettres (ComUE), 2018. http://www.theses.fr/2018PSLED079.
This thesis contribute to the optimal time study of control-affine systems. These problems arise naturally from physics, and contains, for instance, mechanical systems. We tackle the study of their singularities, while minimizing the final time, meaning the time on which the aim is reached. We give a precise study of the extremal flow, for mechanical systems, for starter, and then, in general. This leads to the knowledge of the flow regularity: it is smooth on a stratification around the singular set. We then apply those results to mechanical systems, and orbit transfer problems, with two and three bodies, giving an upper bound to the number of singularities occurring during a transfer. We then change our viewpoint to study the optimality of such extremal in general, and give an optimality criteria than can be easily checkednumerically. In the last chapter we study the singularities of the controlled Kepler problem through another path: we prove a non-integrability theorem - in the Liouville sens - for the Hamiltonian system given by the minimum time orbit transfer (or rendez-vous) problem in the Kepler configuration
Ngo, Thoi-Nhan. "Contrôle optimal en temps discret et en horizon infini". Thesis, Paris 1, 2016. http://www.theses.fr/2016PA01E062/document.
This thesis contains original contributions to the optimal control theory in the discrete-time framework and in infinite horizon following the viewpoint of Pontryagin. There are 5 chapters in this thesis. In Chapter 1, we recall preliminary results on sequence spaces and on differential calculus in normed linear space. In Chapter 2, we study a single-objective optimal control problem in discrete-time framework and in infinite horizon with an asymptotic constraint and with autonomous system. We use an approach of functional analytic for this problem after translating it into the form of an optimization problem in Banach (sequence) spaces. Then a weak Pontyagin principle is established for this problem by using a classical multiplier rule in Banach spaces. In Chapter 3, we establish a strong Pontryagin principle for the problems considered in Chapter 2 using a result of Ioffe and Tihomirov. Chapter 4 is devoted to the problems of Optimal Control, in discrete time framework and in infinite horizon, which are more general with several different criteria. The used method is the reduction to finite-horizon initiated by J. Blot and H. Chebbi in 2000. The considered problems are governed by difference equations or difference inequations. A new weak Pontryagin principle is established using a recent result of J. Blot on the Fritz John multipliers. Chapter 5 deals with the multicriteria optimal control problems in discrete time framework and infinite horizon. New weak and strong Pontryagin principles are established, again using recent optimization results, under lighter assumptions than existing ones
Pradel, Virgile. "Le contrôle du licenciement disciplinaire du salarié protégé". Phd thesis, Université René Descartes - Paris V, 2013. http://tel.archives-ouvertes.fr/tel-00880917.
Palmero, Sandra. "Les effets de types de travail à temps partiel sur les attitudes au travail". Aix-Marseille 3, 2000. http://www.theses.fr/2000AIX32067.
Daugareilh, Isabelle. "La durée et l'aménagement du temps de travail : approche en droit comparé du travail". Bordeaux 1, 1989. http://www.theses.fr/1989BOR1D015.
Duration of working hours: factor affectig in which work is performed, characteristic of subordinate labour. Law relating to duration of work based principaly but not exclusively on protection of employees. Workers' demands througthout history for reduction in working hours aimed at increasing leisure time and jos sharing. Legislation allowing derogations permitting working hours to be increased temporarily and excetionally, to meet needs to various occupations. Adjustement of working hours enables rational management of manpower with reference to production needs. Laws regulating adjustements in hours of work accept variations for individual workers and for entire workforces, provided collective bargaining agreements allows this. Legislation now just one method of regulating hours of work. Uncertain and vague implementation of idea of social order. Unprecedented normative power and responsability for partners in social contract who may conclude agreements on hours of work, constituting departure for general role. Industrial sector alone has power duty to ensure coherence of collective bargaining rules. Adjustement of hours of work means end of myth and dogma (autonomy of individual will versus legal rules), enabling experiment with law making process : historical compromise between different conceptions of employment contratc (based on civil law or state intervention)
FRAY, ANNE MARIE. "Processus d'innovation en gestion des ressources humaines. Application au cas de l'amengement et de la reduction du temps de travail". Tours, 1997. http://www.theses.fr/1997TOUR1013.
In a study for a thesis in management, the author was interested in the process of innovation for human ressource management. For this purpose, he used flexible time management and cut in working hours. The problem is based on the following questions : how can the actors take over the innovation in hrm and elaborate that appropriation ? through an emprirical and inductive process based on the purely theorical framework of constructivism and the approach to the changes which use deliberate (o. D. ), negocied (industrial relations) and emergent (constructivism), the author checks empirically using three type of data: a quantitative study with the example of twenty firms, three analyses and a deeper one about flexible time management. These results highlight three elements of the innovation regarding flexible time management: the major role of the leader, the negociation between management and industrial relations, and the process of adaptability of every employee which is both individual and collective. The concept of this process shows that the innovation regarding human ressource management means, for the people concerned, a climb-down of their uncertainties as the process develops, an enlargement of their freedom and personnal construction of reality. The whole study leads to the following conclusions : for the manager, the process of innovation represents one main part for the life of the organisation, a key-factor or failure of his activity, and an important link between the different individuals and time management
Lesnard, Laurent. "La place du travail et de la famille dans les emplois du temps". Versailles-St Quentin en Yvelines, 2004. http://www.theses.fr/2004VERS017S.
This thesis analyses the temporal balance between work and family resulting from recent social changes (worktime flexibilisation and the rise of dual-earners couples) through two French time-use surveys (1985-86 and 1998-99). An innovative description of individual and conjugal work time, derived from Optimal Matching Analysis, and of their social inequalities is proposed as well as a portrayal of family time and of its gender inequalities. It is finally demonstrated that the degree of synchronicity of dual-earner couples is proportional to their social position: the higher the more synchronous but also the more fusional and the less temporally invested in parental care. In the end, social inequalities in worktime counterbalance partially gender inequalities in family time
Puech, Isabelle. "Dérégulation du temps de travail et recompositions du marché du travail : inégalités entre les sexes, disparités entre femmes : trois figures du salariat féminin du secteur tertiaire". Paris 8, 2005. http://www.theses.fr/2005PA082549.
Liu, Baosheng. "Simulation numérique de l'emboutissage. Méthode a grand incrément de temps". Paris 6, 1992. http://www.theses.fr/1992PA066666.