Dissertations / Theses on the topic 'Sécurité alimentaire – Qualité – Contrôle'
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León-Guzmán, Marlen. "L'obligation d'auto-contrôle des entreprises en droit européen de la sécurité alimentaire." Nantes, 2010. http://www.theses.fr/2010NANT4014.
Full textThe sanitary crises affecting the European Union in the nineties drove the authorities to rethink the framework of the control of food sanitation. The food legislation was reformed as a result of this process and an obligation of “self-control” has been established. The definition of this obligation implies a major change in the implementation of sanitary food controls. Food operators have been placed on the base of the control framework. They must manage the risks during the food produced, transformed or distributed by them. Beyond of the comprehensive control of the food production chain, the obligation of self-control establishes economic and legal responsibilities to food operators in relation to risks from food stuffs under their control. This main responsibility of food operators proves their leading role in the sanitary food control framework and this role is the foundation of the self-control obligation. From this point of view, the analysis of the existence of this obligation and their modalities of implementation is the theme of this piece of work
Las crisis sanitarias que afectaron la Unión Europea en los años noventas motivaron la reflexión sobre la organización del sistema de control sanitario de los alimentos. Esta reflexión concluyó con la reforma de la legislación alimentaria. La obligación de autocontrol fue definida como parte de esta reforma. La definición de la obligación de autocontrol implica un cambio fundamental en la aplicación del control sanitario de los alimentos. Esta obligación sitúa al explotador en la base del sistema de control. Él debe gestionar los riesgos de los alimentos que produce, transforma o distribuye. Más allá del control integral de la cadena de producción agroalimentaria, la obligación de autocontrol establece la responsabilidad jurídica y económica del explotador en relación a los riesgos que pueden presentar los alimentos que se encuentran bajo su control. Esta responsabilidad primaria del explotador agroalimentario fija su rol principal en el sistema de control sanitario de los alimentos. Este rol es el fundamento de la obligación de autocontrol. El análisis de la existencia de esta obligación y de las modalidades de su aplicación constituye el objeto del presente estudio
Kassouf, Amine. "Sécurité sanitaire des denrées au contact de matériau d'emballage : proposition d'une démarche méthodologique." Electronic Thesis or Diss., Paris, AgroParisTech, 2015. http://www.theses.fr/2015AGPT0006.
Full textCompliance of plastic food contact materials (FCMs) with current legal specifications requires a better knowledge of their composition as well as their interaction phenomena with food in contact. Inspired by non-hypothesis driven metabolomics approaches, mining useful information in spectral and chromatographic fingerprints such as those generated by mid-infrared spectroscopy (MIR), gas and liquid chromatography coupled to mass spectrometry (GCMS and LC-MS) and 3D front face fluorescence spectroscopy, is becoming a key step in recent advancements in analytical chemistry, which we applied for the safety evaluation of FCMs. Innovative chemometric tools were used especially independent components analysis (ICA). In fact, the developed analytical approaches, that combine analytical fingerprints with chemometrics, helped to extract relevant information about the composition of these materials, such as intentionally added substances, listed in the EU regulations Nº10/2011, and also unknown molecules resulting from chemical reactivity and contamination. This approach was validated in particular for monitoring polyethylene terephthalate bottles manufacturing process as well as for the quantification of plasticizers in polylactide. Moreover, the proposed non-targeted methodologies proved their efficiency in highlighting the reactivity of migrating compounds from FCMs into complex foodstuffs such as olive oils. The scope of the developed approaches is not limited to the study of FCMs safety. The combination of MIR fingerprints with ICA allowed us to ensure an effective separation of the main plastic packaging materials. This approach could easily find applications in the sorting of plastic wastes prior to recycling
Debure, Antoine. "Crédibiliser pour expertiser : le Codex Alimentarius et les comités d'experts FAO-OMS dans la production réglementaire internationale de sécurité sanitaire des aliments." Paris, EHESS, 2012. http://www.theses.fr/2012EHES0054.
Full textThe scientific expertise, produced for the Codex Alimentarius by international committees of the FAO and the WHO, has a growing central role in the regulation of food production and international trade. It is this role and the questions arising from the relation between science and policy that this research work explores by analyzing the “credibilization processes” of expertise. The theoretical framework articulates Sociology of organizations, Sociology of science as well as central concepts of political sociology. The relationship between science and policy is known to be unstable. The FAO-WHO’s expertise is even more unstable with regard to its participation in the international normalization/standardization which has an enforceable power over national regulation systems. This dissertation demonstrates that the “credibilization processes” in which different actors are involved (experts, institutions, regulators, industries, consumers…) enables to reduce this instability. By engaging in these processes, actors obtain the resources to negotiate their position in the relationship to their advantage, and are able to avoid criticism at the same time. We consider the “credibilization processes” as a set of strategies aiming at strengthening “the subject’s ability to state and to take action”, a notion that exceeds the limits of “authority” and “legitimacy”, other central notions. Processes are grasped by analyzing strategies and behavior of institutions as well as experts in their transnational networks and in the course of FAO-WHO collective expertise. The “credibilization processes” rest upon three interdependent dimensions: a procedural credibilization, a collaborative credibilization and a deliberative credibilization. This research illustrates an expertise that is inseparable from the “credibilization processes”. The credibilization is both the result of interdependencies along the expertise, and a prerequisite for interdependencies to exist in order to produce an expertise. The “credibilization processes” analysis unveils a plural expertise, more specifically in between a “traditional” model and a “precautionary” model. Finally, this dissertation questions the relevance of maintaining science and policy separated; a separation always reasserted by national and international authorities, but remaining however implicitly adjusted in practice
Jung, Kwan-Seon. "Etude comparative du droit de la gestion des risques alimentaires en France et en Corée." Thesis, Aix-Marseille, 2014. http://www.theses.fr/2014AIXM1003.
Full textThe food safety concerns are now an important place, both nationally and internationally. This phenomenon is further strengthening under the leadership of successive food crises and the expansion of uncertain risks. The state accordingly shall undertake responsibility for risk management such as risk assessment, risk prevention, and prompt response to crisis at all stages of production, distribution and sales of food. In this context, the precautionary principle provides a mechanism for determining risk management measures or other actions to ensure the higher standard of health protection. This article, through reviewing the cases and studies in France on the precautionary principle and the control over it, aims to help better understand the principle and actively introduce it to Korea. In addition, this article presents suggestive points through a comparative study of the system and food law between France and Korea, possible improvements to implement an effective food risk management
Nyama, Annie Laurence. "Le droit alimentaire européen dans les échanges commerciaux entre l'Union européenne et les pays subsahariens." Thesis, Montpellier 1, 2012. http://www.theses.fr/2012MON10028/document.
Full textFood trade between EU and Sub-Saharans, are permanently increasing. This trade is surrounded by some food Law major principles, part of consumer Law. These main principles, deal with: safety, information, conformity, traceability, of food stuffs which have to be respected by all stakeholders in the agro-food business. This huge amount of legal instruments (international, European,) has to be mixed with the local regulations. These rules are used in the frame of the international contracts of importing food. Health and safety questions are a strong demand from consumers. But producers are paying much attention to the evolution of this corpus of rules of consumer protection, as far as they influence production, transformation, transport, storage, and distribution .Of course sub,-Saharan countries occupy a small part of international food trade, but it remains an important partner of EU, and this is an important encouragement mean to develop African production of foodstuffs. African countries cannot anymore apply their local and obsolete regulations, unefficient and lacking with global trade. In fact, European importers stress, by the terms of their contracts, imposed to the African partners, to respecting European sanitary rules. Otherwise they could not put the imported goods into circulation on the EU market. The thesis shows the necessity to up to date legal instruments in Africa . In particular the standards (official and private standards) will be very efficient for helping producers and exporters from developing countries to understand the constraints of mandatory rules, and their technical consequences in terms of modern production and management processes
Danieau, Loïc. "La Démarche qualité dans l'agro-alimentaire." Toulouse, INPT, 1991. http://www.theses.fr/1991INPT012A.
Full textLoisel, Julie. "Détection des ruptures de la chaîne du froid par une approche d'apprentissage automatique." Electronic Thesis or Diss., université Paris-Saclay, 2023. http://www.theses.fr/2023UPASB014.
Full textThe cold chain is essential to ensure food safety and avoid food waste. Wireless sensors are increasingly used to monitor the air temperature through the cold chain, however, the exploitation of these measurements is still limited. This thesis explores how machine learning can be used to predict the temperature of different food products types from the measured air temperature in a pallet and detect cold chain breaks. We introduced, firstly, a definition of a cold chain break based on two main product categories: products obligatorily preserved at a regulated temperature such as meat and fish, and products for which a temperature is recommended such as fruits and vegetables. The cold chain break leads to food poisoning for the first product category and organoleptic quality degradation for the second one.For temperature-regulated products, it is crucial to predict the product temperature to ensure that it does not exceed the regulatory temperature. Although several studies demonstrated the effectiveness of neural networks for the prediction, none has compared the synthetic and experimental data to train them. In this thesis, we proposed to compare these two types of data in order to provide guidelines for the development of neural networks. In practice, the products and packaging are diverse; experiments for each application are impossible due to the complexity of implementation. By comparing synthetic and experimental data, we were able to determine best practices for developing neural networks to predict product temperature and maintain cold chain. For temperature-regulated products, once the cold chain break is detected, they are no more consumable and must be eliminated. For temperature-recommended products, we compared three different approaches to detect cold chain breaks and implement corrective actions: a) method based on a temperature threshold, b) method based on a classifier which determines whether the products will be delivered with the expected qualities, and c) method also based on a classifier but which integrates the cost of the corrective measure in the decision-making process. The performances of the three methods are discussed and prospects for improvement are proposed
Jarry, Mathias. "Les régulations des démarches de qualité en agro-alimentaire." Nantes, 2003. http://www.theses.fr/2003NANT4017.
Full textPublic regulation of the quality in France shows an agricultural specificity. State and private operators work together to elaborate an agricultural policy and the public's rules of a good sell. Operators should follow this rules in order to sell products with a special quality. This national regulation is under the influence of the European Union and World Trade Organisation, which protect the rules of a free market. Both organisation have a different understanding of the agricultural policy's impact. There is no agricultural specificity on the contractual organisation. Technical and economical purposes are dealed with a complex contract, useful in many commercial's sectors. The only specificity is the protection of some farmers, dominated by powerful companies. It appears that this protection is nowadays less protective than the one which concerns the non farmers
Longuet, Patrick. "Le consommateur et le risque alimentaire : vers un modèle intégrateur d'équilibre." Nice, 2008. http://www.theses.fr/2008NICE0011.
Full textOur work is focused on food risk and particularly the analysis of the consumer behavior in a real risky situation. Our theoretical framework is translated from the models based upon stability, used in many other sciences. Our central question is based on : how to get a better understanding of the consumer behaviour in a risky situation?We have followed two major steps in our work. Firstly, a review of literature gives us the conceptual framework and secondly, an empirical study explore the dimensions involved in the crisis evaluation by the consumer himself. Our methodological plan used the scenario method, and we have both conducted a qualitative and quantitative study. We finally give the results of our work and try to establish the limits and the future possibilities for further research works
Pauzé, Elise. "La qualité de l’alimentation et l’accès alimentaire des ménages vulnérables habitant dans une zone d’intervention d’agriculture de santé publique en Haïti." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/32432.
Full textChaumette, Philippe. "Diagnostic de "Listeria monocytogenes" dans l'industrie agro-alimentaire." Paris 5, 1994. http://www.theses.fr/1994PA05P029.
Full textFaddoul, Élias. "Contribution à l'étude de l'influence de la fiabilité humaine sur la fiabilité d'un système de production agro-alimentaire." Bordeaux 1, 1985. http://www.theses.fr/1985BOR10521.
Full textTeixeira, Silva Fernando. "Emballage intelligent : faisabilité de l’utilisation d’un biocapteur couplé à un tag RFID UHF pour le suivi de la température." Thesis, Montpellier, 2017. http://www.theses.fr/2017MONTT124/document.
Full textIntelligent packaging (IP) is an emerging technology based on the communication function of packages. Radio frequency Identification (RFID) is considered the most promising concept of IP. RFID refers to technologies and systems that use radio waves (wireless) to transmit and uniquely identify and/or track objects with accurate information in a real time.The present thesis is based on an innovative study of the electrical (capacitance) and dielectric properties (real permittivity and loss factor) of soybean isolated protein, gelatin and sodium caseinate aiming at their use as a sensor of temperature coupled with RFID tags. The environmental variables were temperature (range from 20°C up to 80°C) and humidity (90% RH) that are normally used for meat cooking. Gelatin was the most sensitive sensor. After this first part, several steps have been set up:• Analysing the impact of gelatin film thickness on electrical capacitance and the determination of several parameters such as sensitivity, hysteresis and repeatability;• The coating of gelatin on a RFID tag tested at 90% RH and variation of temperature (20°C up to 80°C) in a pilot condition. The impact on the reading range was analysed.The potential of gelatin as a sensor was demonstrated at thickness of 38 µm and 125 µm. For the first case, the capacitance was stable at 20°C up to 80°C and at Ultra High Frequency band (300-900 MHz). Sample with 125 µm has suffered the electro-thermal breakdown between 60-80°C. To overcome this phenomenon, 600 MHz was applied. A balance between thickness and frequency should be consider to increase the sensitivity that was 0.14 pF/°C (125 m at 600 MHz); this value was higher than 0.045 pF/°C (38 m at 868 MHz) influencing the results in the simulation of meat cooking. Reuse of the same sensor has led to mass loss reducing the sensitivity. The feasibility of gelatin sensor-enable RFID tag was demonstrated. The tag covered by gelatin film in the whole antenna was suitable because it was able to deliver different Theoretical Reading Range (TRR) (p<0.05) for 868 MHz, 915 MHz and 960 MHz. At this layout also, the TRR was the same (without hysteresis) for the rising and descending temperature at the critical zone (60°C- 80°C and 60°C-20°C) at 915 MHz. These promisor results open a window for new conception of temperature sensor based on biomaterial that confers advantages, such as low cost and eco-friendly property sought to be interfaced to passive RFID tags for intelligent packaging
Ngo, Mai-Anh. "Approche juridique de la qualité et de la sécurité dans le domaine agro-alimentaire : entre concurrence et consommation." Nice, 2003. http://docelec.u-bordeaux.fr/login?url=http://www.harmatheque.com/ebook/la-qualite-et-la-securite-des-produits-agroalimentaires.
Full textQuality in the field of agricultural products and foodstuffs relates to two aspects: product safety and quality specifications. Safety relates to those factors that render a product safe for human consumption and quality specifications relate to the desired parameters specified by consumers and / or regulators for a particular product. It is shown that agricultural and food product quality is used as a means to either protect or divide markets. In the past, the safety component of product quality was perceived as a means to protect markets and more recently a legal framework has been developed to provide for this protectionism. Product development and promotion can only be effective within a regulated environment that adequately and rigorously ensures agreement between the actual quality of a product and the specified legal quality requirements
Jorat, Magali. "La traçabilité dans le domaine alimentaire et sanitaire : étude du devenir juridique d'une norme technique." Grenoble 2, 2006. http://www.theses.fr/2006GRE21041.
Full textAs a technical standard, traceability in food and health field has been appropriate by private and institutional actors imparting it, thus, a legal meaning. This progressive way from a normative system to another has been connected to the food and health crisis context in which standardization has shown its limits. On the same way, the legal aspect of traceability has connection with the precautionary principle and presents some issues in a field linked to the risk factor and to the transformation of safety expectations in and by the law. The latter has become a privileged way of risks management, which cannot be limited to a domestic scope ; European and international areas are also concerned due to the fact that traceability - and the question of food and health safety – are interlinked with the free movement of goods. Despite the interest of the new legal norm in the risks management scope, its appropriation by the judge shows that the law has difficulties to take up a technical standard. This institutional actor is referring to this new concept with moderation though the litigation complexity of risks and the increasing technicality of law encouraged a whole appropriation. Therefore, traceability benefits from an imperfect increasing legal meaning in food and health field
Gama, Alves Isabel Teresa. "Le rôle de l'action publique pour la qualité dans l'agro-alimentaire en France : étude de cas de la filière lait." Toulouse 1, 1996. http://www.theses.fr/1996TOU10027.
Full textQuality has drawn more and more attention from governments in the 80's and public policies devoted to this point have been established in the 90's through specific laws and institutions. As quality of a product is related not only to its production but also to its marketing, we can define quality policies as a framework of "rules" related to this environment. From the points of views of public policies and quality, the foodstuff industry is in a special position as it is related both to agriculture and industry as well as to human health. Public policies cannot be defined independently of this framework including different kinds of production models. Therefore our central hypothesis was that quality is a social construction and results from compromises. The apparition of new actors as well as new values in the 80's and 90's has for consequences that public intervention used new channels and new mediations. Moreover, in order to analyze the evolution of public policies, one must take into account negotiations related to quality that concern different rules (and especially trademarks and other labels). Links between rules and mediators have also changed so that heterogeneity that has to be taken into account to get workable compromises has its counterpart in the public institutions specialized or not local and national level as well as the EU level. In conclusion, this dynamics and the new conception of the administration that delegate and negotiate more often than previously leads to place the analysis of quality policies as a multi-stage action
Duclos, Antoine. "Sécurité du patient en chirurgie thyroïdienne : intérêt du suivi des complications par cartes de contrôle." Phd thesis, Université Claude Bernard - Lyon I, 2010. http://tel.archives-ouvertes.fr/tel-00733407.
Full textTallec, Fabien. "Rôle de l'action collective dans la construction de la qualité dans une filière agro-alimentaire : analyse des différentes formes de coordination des commerçants de la filière des céréales sèches au Mali." Versailles-St Quentin en Yvelines, 2004. http://www.theses.fr/2004VERS025S.
Full textImproving the quality has become one of the stakes in agro-commodity chains. In developing countries, this process has sped up in the last twenty-two years because of the liberalization of the agricultural sector and the market segmentation. In these countries, improvement of the quality is subdued to specific constraints. First of all, states have neither the ability nor the credibility to support official norms of quality. Secondly, variability of the agro-climatic conditions leads to a large heterogeneity of the quality of the agricultural production. This thesis focuses on the coordination of economic agents of these commodity chains for the improvement and validation of their quality, including these different constraints. The framework is along the line of a neo-institutional economic way of thinking and uses the theory of transaction cost and the theory of collective action. In this case, the quality is as an endogenous variable and depends on the governance of agricultural chains. The analysis of the non-irrigated cereal chains in Mali shows a symbiotic relationship between the vertical coordination (linked with the traditional networks) and the horizontal coordination (using the collective action between the bosses of the networks) in improving the quality. The study case of three traders’ groups displays their efficiency when they are located in the pivotal role of commodity chains. The approach by the collective action in the three different devices underlines the determining factors to improve the quality
Nourelfath, Mustapha. "Extension de la théorie de la supervision a la surveillance et a la commande des systèmes a évènements discrets : application à la sécurité opérationnelle des systèmes de production." Lyon, INSA, 1997. http://www.theses.fr/1997ISAL0066.
Full textWe propose a monitoring and control approach based on the Supervisory Control Theory (SCT) initiated by Ramadge and Wonham (RW) works. The work is split in two complementary parts. The first concerns the control and the supervision in nominal mode. The second part is related to monitoring to ensure the continuity of system operation in the presence of critical failures. In the RW approach, a process is assumed to generate events spontaneously and the supervisor has the ability to forbid some controllable events. Nevertheless real systems usually require the addition of an external control system that forces some events to occur. To bridge the semantic gap between control and the RW model, we propose an extension of SCT based on a relaxation of the controllability concept. Furthermore we introduce a monitoring module (MM) based on the Operational Safety concept and on the RW theory synthesis issues. MM contains the functions of detection/observation and compensation/recovery. The reactivity is based on the following procedure: at the detection of a failure, the observer activates a compensator which freezes the conflictual nominal supervisors, liberated only after recovery. The modelling of such mode alternations is based on the macro action concept. In the SCT context, macro actions are represented by Boolean variables to deal with the controllability of the global system. This proposition allows the formal validation of admissible degraded functioning specifications and the synthesis of the compensation of critical failures. The concepts developed have been applied to the fairly complex manufacturing system of the "Atelier Inter-établissements de Productique" (AIP) Dauphiné-Savoie (France)
Raingeard, Isabelle. "Comportement alimentaire chez la jeune femme diabétique de type 1 : relations avec le niveau de contrôle glycémique, la qualité de vie et les complications du diabète." Montpellier 1, 1999. http://www.theses.fr/1999MON11052.
Full textMigeot, Virginie. "Evaluation des stratégies de sécurité sanitaire : application à la securité immuno-hématologique des transfusions de concentrés globulaires rouges." Bordeaux 2, 2002. http://www.theses.fr/2002BOR28962.
Full textTo prevent the occurence of the ABO incidental incompatibility, the bedside pretransfusion ABO control has been mandatory in France since 1965. If the quality of the reagents is regularly controlled, no technical specification exists concerning the type of support. To describe the types of devices used by the french hospitals, we conducted a national survey. The results showed a large disparity and heterogeneity of the quality of the supports. Moreover previous studies have shown high rates of erroneous transfusion interpretation, due to defective techniques and poor user performance. We conducted an experimental study to evaluate the error rate obtained with a new ready-to-use device containing liquid reagents, in comparison with the most widely used bedside device in France. The error rates were high, not different between the devices, but significantly lower when the nurse had experience in transfusion. After we had discussed the utility of the bedside pretransfusion control, we described others strategies to prevent the occurence of ABO incompatible incidents. Firstly, we analyzed the impact of quality improvement in transfusion safety from a regional program to guide hospitals in improving the quality process in the Poitou-Charentes area. Secondly, we analyzed the reasons why efforts to reduce transfusion risks remains insufficient. Finally, we proposed inspiring with relevant methods widely used in others high-level risk organizations, to implement effective strategies to prevent transfusion incidents
Chabin, Yann. "La cohérence entre représentations de la performance et contôle : le cas des entreprises intégrées de grande distribution alimentaire." Montpellier 2, 2001. http://www.theses.fr/2001MON20066.
Full textSwiderek, Karolina. "Communication et processus organisants : le cas du traitement des évènements de sécurité dans le domaine du contrôle aérien." Toulouse 3, 2014. http://thesesups.ups-tlse.fr/2474/.
Full textOur object of study is situated in the field of air traffic control, and more specifically concerns what is identified as " security events processing system " in the wider context of " system security management ". The aviation security must be controlled and constantly rework due to the increase of the air traffic. The regulatory and technical evolutions are associated with new stakes related to quality and safety approaches. These approaches are based on a principle of continuous enhancement implemented through what is called in terms of " security events notification and processing " as well as " experience feedback ". However, the norms are never simply applied, they are tested in concrete situations, negotiated and interpreted. In this research, we question textualization forms (Taylor, 1993) of organizations through the norms inscribe in prescriptive texts and other " professional writings " omnipresent in organizations (Delcambre, 1990, 1993). We question organizing processes from the point of view of the way in which they constitute, negotiate and recompose between different scriptural forms. We propose to contribute to a renewed communicative approach of organizations, mobilizing and reworking some of the contributions of two very contemporary approaches: the approaches of communication as constitutive of organization (CCO) characteristics of all current North American researches and the communicative approaches of organizations (ACO), as worked by French researchers and more broadly European
Bakiri, Mohamed. "Contribution à la conduite et à l'évaluation des systèmes de production intégrant les domaines Qualité, Sécurité et Environnement." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2006. http://tel.archives-ouvertes.fr/tel-00399405.
Full textOuille, Aude. "Evaluation des risques torsadogènes en pharmacologie de sécurité : du test hERG à la télémétrie sur animal éveillé, vers une évolution des recommandations ?" Thesis, Tours, 2009. http://www.theses.fr/2009TOUR4016.
Full textAccording to the ICH S7B guidelines, the torsadogenic risk of new drug candidates must be evaluated before clinical trials. The aim of this work was to establish the electrophysiological profile of known torsadogenic drugs to better understand the mechanism triggering the Torsades de Pointe and defined key points for prediction of proarrhythmic risk. TdPScreen®, a predictive tool, based on clinical data and the model of isolated canine Purkinje fibres allows determination of a proarrhythmic score. Thirteen drugs were chosen in this data base, and tested in patch-clamp on HEK293 cells expressing different channels: hERG (IKR), KvLQT1+MinK (IKS), Kir2.1 (IK1), NaV1.5 (INa), or CaV1.2+? (ICaL). In vivo investigations were also performed, to bring to light the impact of the autonomic nervous system on QT interval prolongation in safety pharmacology
Plogin, Jérôme. "Démarche qualité en hygiène dans un service de médecine nucléaire." Bordeaux 2, 1998. http://www.theses.fr/1998BOR2P080.
Full textNguyen, Huong Hue. "Investissements industriels, concurrence et diversification de l'offre alimentaire." Thesis, Paris 2, 2011. http://www.theses.fr/2011PA020052.
Full textOur research aims at analyzing the economic feasibility of approaches for product diversification and quality characteristics improvement by firms, in a context where these modifications are subject to technical constraints that induce high costs not necessarily valued by the market. In this context, we try to understand how it is possible for public authorities to intervene in order to encourage firms to make sufficient efforts (in terms of upstream investment) and facilitate the marketing of products in response to the needs of society. We apply these research perspectives to two important issues, namely the GM/non-GM coexistence and the health and nutrition issue through the development of product lines which are more acceptable from a nutritional point of view (for example, less sugar, fat, salt…). These two research issues are developed by mobilizing the tools of the Theory of Industrial Organization. The results show that the spontaneous choice of product lines by firms is not always socially satisfactory, which implies that in certain conditions, public intervention is desirable. In the case of GM/non-GM coexistence, non-GM products may not have the desired characteristics in the absence of regulation. In terms of health issues, companies in the market do not offer high nutritional value foods in the absence of public intervention. Overall, this thesis concludes that it is often necessary to combine several public instruments. In the first study, we show that the public authorities can effectively manage the GM/non-GM coexistence by acting simultaneously through the labelling threshold definition, the quality tests and controls, and the level of the penalty cost in case of non compliance. In the second study, we show that an intervention through Research and Development (R&D) subsidies has some weaknesses such as the risk of manipulation of the grant by firms, or the possibility of triggering distortions to the detriment of public health. This suggests combining the R&D subsidies with another instrument such as taxation
Simon, Jean-Michel. "Evaluation du médicament et économie de la santé." Dijon, 1995. http://www.theses.fr/1995DIJOE008.
Full textThe economic evaluation of drugs is referred to increasingly in the context of scientific and economic approaches to achieving more effective health expenditure. The first part of this thesis sets out the basis for, and methodology employed in the economic evaluation of drugs. It describes briefly its limitations and the main criticisms levelled against it, giving details of the analytical options available as well as the differences between methods. In the second part, the author examines the possible role of pharmaco-economic criteria within the regulatory mechanisms of the French pharmaceutical market. It shows that they conflict with other decision-making criteria which at the present time carry, relatively speaking, more weight. The third part examines the relevance of pharmaco-economic evaluation in a practical setting, on the basis of studies of the new active substances which appeared within the five year period 1989-1993. It points out the problems inherent in these studies examines the general characteristics of the method adopted. It draws attention to the most frequently occuring faults, examines the validity, and assesses their overall contribution
Bister, Sarah. "L'encadrement par le droit de l'Union européenne de la qualité et de la sécurité des médicaments et dispositifs médicaux : implications en droit français." Thesis, Toulouse 1, 2017. http://www.theses.fr/2017TOU10010/document.
Full textLe résumé en anglais n'a pas été communiqué par l'auteur
Fernandez-Maloigne, Christine. "Segmentation et caractérisation d'images de texture à l'aide d'informations statistiques : application à l'industrie agro-alimentaire." Compiègne, 1989. http://www.theses.fr/1989COMPD218.
Full textAmin, Alexandre. "La spectroscopie Raman appliquée au contrôle de qualité analytique libératoire et non-intrusif des préparations injectables cytotoxiques préparées à l'hôpital : évaluation et qualification opérationnelle." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS497.
Full textThe development of effective tools for the analytical quality control (AQC) of therapeutic objects (TO) appear to be a strong contributor to security of the cytotoxic drugs circuit in health care settings. Our goal is to ensure a high and stable quality in our pharmaceutical preparations for the benefit of patients and caregivers. Presently available analytical techniques have in common to be intrusive, destroying a fraction therapeutic solutions, exposing personal and generate specific toxic waste disposal. Compared to these, the non-intrusive analysis by Raman spectroscopy (RS) appears to us particularly innovative and has the capacity to significantly improve the specification of AQC technical specifications. The purpose of this work was to conduct an operational qualification of RS in the context of AQC. Special attention has been given to the feasibility of the new technical solution for SR, its impact on safety of persons and their working environment
Abelmann, Caroline. "Qualité des soins et droit de la santé." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS163.
Full textQuality of care has gradually been incorporated into French law. It is now recognized indirectly as a patient's right and a goal for professionals and health institutions to achieve.However, the quality of care domain does not have its own legal framework. Soft law concerning care quality has emerged in parallel as a principle response to the hard law’s inadequacy in this domain, and to a wider extent, with special regard to the fast evolution in medical practice. These « soft law » instruments are different from their hard law counterparts which are traditionally defined as mandatory and are accompanied by a regime of sanctions issued by public authority.In this way the care quality domain conforms to a graduated regulatory system which extends from hard law to soft law. This now entails defining the articulation between the different instruments and their legal effects.In fact, improvements to care quality are being slowed by the overproduction of measures and professionals’ fears of being held liable as a result of their participation in these processes.It seems indispensable that regulatory, organizational, and operational changes should both target the development of a legal regime dedicated to data from these approaches, as well as the clarification of the roles and skills of each player especially as concerns the entirety of the measures. In contrast, specific legislation targeting the protection of professionals is not desirable
El, Alami el Hassani Nadia. "Conception et Réalisation de Capteurs et de Biocapteurs Électrochimiques à Base de Nanomatériaux pour le Contrôle de la Qualité en Agroalimentaire et pour l'Analyse Biomédicale." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSE1311/document.
Full textIn recent decades, the use of electrochemical sensors and biosensors have grown considerably due to their simplicity, reliability, rapidity, and selectivity. They were the most attractive alternative tools for conventional analytical methods in various fields such as food control, medicine, and clinical biology or environmental control. In this research works, we focused, in the first part, on the development of immunosensors and electrochemical sensors based on molecularly imprinted polymers (MIPs) for the quality control of honey. In the second part, we managed to apply a voltammetric electronic tongue (VE-tongue) for food monitoring and biomedical analyzes. The first part of our research work concerns the development of immunosensors based on gold microelectrodes of the Bio-MEMS devices. The development of these immunosensors was dedicated to the detection of antibiotic residues namely sulfapyridine (SPy) and tetracycline (TC). A new structure of magnetic nanoparticles (MNPs) coated with the poly (pyrrole-co-pyrrole-2-carboxylic acid) copolymer has been exploited in this work for their three-dimensional immobilization network as well as for their stability for long periods. The detection of SPy and TC was performed by different competitive approaches using polyclonal antibodies. In this part, we have also synthesized the MIP sensors dedicated to the detection of sulfaguanidine, doxycycline, and chloramphenicol in honey. These devices have been developed on the surface of the screen-printed gold electrodes by employing a polyacrylamide matrix in the presence of the target molecules. The performances of these sensors and biosensors (limit of detection, selectivity, reproducibility, applications in real samples) were then evaluated. Regarding the second part of our research works, it involved the discrimination between honeys from fourteen regions from France and Morocco. We have succeeded in demonstrating the reliability of this device in predicting the results of the different physico-chemical parameters of honey samples according to the responses of the used analytical methods. In other steps, we proceeded to the application of the VE-tongue in biomedical analyzes to discriminate urine specimens of patients suffering from urinary tract infections and those of healthy subjects
Baudry, Pagnac Héloïse. "L’intégration de la prévention de la malveillance aux démarches de qualité environnementale de l’espace public." Thesis, Bordeaux 1, 2013. http://www.theses.fr/2013BOR14868.
Full textCrime prevention through urban design and planning includes specifically the feeling of safety and contributes to the users’ comfort in public spaces. Beyond, the quality of life in public spaces and sustainability are taken into account in crime prevention. Today, in a perspective of sustainability and green approach, this research shows that it is necessary to considerer crime prevention combined with a sustainable approach for public spaces. Crime prevention and sustainable design have different origins : one is based on criminology applied to urban design and the other is based on sustainability. However, they both work on the same case study : the city. We have developed a specific methodology which gathers crime prevention and a sustainable approach for urban design. This methodology therefore mixes different green approaches with the French law on crime prevention to analyse and improve the interventions in the urban areas
Hamza, Oualid. "Sécurité sanitaire des aliments, commerce et développement : approche par l'Economie Industrielle." Thesis, Paris 2, 2012. http://www.theses.fr/2012PA020073/document.
Full textThis thesis is part of the current context of the international regulation of food safety. It stands at the crossroads of international trade theory, industrial economics and development economics and it comes to evaluate the conditions for an effective and fair multilateral co-regulation of food safety. Such a co-regulation should ensure consumers’ health in developed countries faced to imports from developing countries, the access of developing countries to Northern markets and consumers’ health in developing countries through the improvement of production and commercialization practices in domestic supply chains. In the first part of the thesis, we analyze the conditions for a North-South co-governance of health risk, which would be beneficial to both the health of consumers in the North and producers’ incomes in the South. Considering the context of domestic markets in developing countries, the second part of the thesis determines the conditions for which food security, in a quantitative sense, is not incompatible with food safety. In the last part of the thesis, we analyze public interventions that allow South domestic markets to benefit from progresses achieved in the export sectors. From a methodological point of view, the thesis is based on the conceptual framework of the Theory of Industrial Organization. The theoretical models that we propose serve as a support for empirical works and stylized facts that we review in detail
Halawany-Darson, Rafia. "Le Traitement de l'information dans le processus de prise de décision du consommateur : le cas de la traçabilité des produits alimentaires." Phd thesis, Université d'Auvergne - Clermont-Ferrand I, 2010. http://tel.archives-ouvertes.fr/tel-00719609.
Full textDesrousseaux, Maylis. "La protection juridique de la qualité des sols." Thesis, Lyon 3, 2014. http://www.theses.fr/2014LYO30080.
Full textThe soil is the upper layer of the earth’s crust, the plan surface that stretches from one horizon to the other. It is the crop lands, the scattering sand, the ground we trample on, the link between men and their territory: garden, region, state. The soils, those fragile and multifunctional ecosystems, provide many ecological services and guarantee the environmental quality. The law contains several conceptions of the notion of soils quality. But, far from constituting a protection status, this integration ignores, a priori, their environmental qualities. However, the soils are a finite resource and their non-sustainable use leads to their degradation, often irreversible, and to their growing scarcity. Progressively, the law added elements of soils multifonctionality, integrating sustainable practices. This utilitarian approach of soil quality proves to be selective and remains focused on the preservation of a small part of all the ecological services: the ones that men directly need, like food production and ignores the indirect ones like carbon storage. Nevertheless, this approach is complemented by the raising of an objectivist conception of quality, which reveals the propensity of the law to take into account the intrinsic value of soils
Occelli, Pauline. "Mesurer et améliorer le climat de sécurité des soins dans les établissements de santé français." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSE1228/document.
Full textIt is recommended to develop the safety climate (SC) to improve patient safety. In this thesis, we will try to clarify the use of the CS concept for the evaluation of interventions aiming to improve patient safety.The objectives of the articles presented were to develop a French version of a SC questionnaire and to assess the impact of a vignette-based analysis of adverse events (AEs) on the SC of care units.The studies demonstrated the feasibility of measuring the SC with a French version of the American questionnaire, the Hospital Survey On Patient Safety Culture (HSOPSC). They made it possible to propose a French version with sufficient psychometric performance. They showed the importance of the role of supervision, the organisational learning and teamwork between units. The French version of the HSOPSC was used to evaluate the effect of the vignette-based analysis of AEs. Tested in a randomized controlled cluster trial, this intervention improved professionals' perceptions of the organisational learning and continuous improvement, without modifying other dimensions.Given the difficulty of modifying all dimensions in a short period of time, SC should be used to characterize the context in which interventions are implemented in order to adapt them and better understand their impact, rather than being used as an outcome criterion.The research areas are to study the sustainability of an intervention beyond its initial evaluation through the maintenance or development of a safety culture; and to study patients' perceptions of care safety
Belaizi, Yassin. "Etude et conception d'un capteur-RFID passif en bande UHF : application à l'agroalimentaire." Thesis, Montpellier, 2018. http://www.theses.fr/2018MONTS061/document.
Full textRadio frequency identification (RFID) technology is available today in thousands of applications. Among them we can mention the logistics management applications pallets / cardboard in industrial warehouses (RFID UHF) and the identification of subscribers in urban transport networks (RFID HF). In recent years, scientific contributions around the radio frequency identification (RFID) technologies with a sensor coupling are increasingly visible. The growing interest in this type of development rely heavily on a mass use of inexpensive sensors that can be integrated on each object.It is calledconnected objects or Internet of Things (IoT). In this thesis, we focus on the study and development of a passive RFID sensor operating in UHF band. This technological orientation is dictated by the targeted application, the food industry, which requires the lowest possible manufacturing costs and a reading distance greater than one meter. For the sensitive element, we use a biopolymer, specifically wheat gluten whose dielectric properties as a function of relative humidity have been studied previously. We are committed to dealing with all the issues related to the communication between a reader and a passive RFID sensor, the ultimate objective of this thesis being to get a sensor information using a conventional RFID reader complying with the standards and the radio directives imposed in different regions of the world. To validate this study, we are implementing RFID sensors to create a smart packaging demonstrator for monitoring the quality of food
Bondoux-Wisniewski, Caroline. "Automatisation de prototypes industriels et d'unités pilotes dédiées à l'extrapolation des procédés : méthodologie et rôle du cahier des charges de la phase d'étude à la conception pour des procédés chimiques et biochimiques." Paris 6, 2002. http://www.theses.fr/2002PA066044.
Full textVossier, Ludivine. "Risque bactérien et transfusion sanguine : vers de nouvelles approches préventives." Thesis, Montpellier 1, 2013. http://www.theses.fr/2013MON13518.
Full textThe prevention of the infectious risk is a major issue for the Etablissement Français du Sang. Currently, bacterial contamination is the most infectious risk in developed countries. The bacterial risk is not limited to blood transfusion safety. The antimicrobial resistance is a major public health problem. Antimicrobial peptides are important arm of the innate immune system which represents an interesting alternative to antibiotics. Human neutrophil peptides 1, 2 and 3 (HNPs 1-3) are found in the azurophilic granules of neutrophils. We have developed an original approach of HNPs 1-3 purification from leucodepletion filters used in blood processing. This process allows the production of a pure cocktail of HNPs 1-3 displaying high antibacterial activity as demonstrated by this work. HNPs 1-3 have also been used as bioreceptor in an innovative approach for bacterial detection. Initially, an electrochemical immunosensor was designed, exploiting magnetic microparticles coated with commercially available antibodies. In a second step, magnetic microparticles have been coated efficently with the HNPs 1-3 purified according our protocol. We have obtained a first proof of concept showing the bacterial capture by this innovative approach. The peptides stability combined with the electrochemical biosensors performances would allow the development of a generic bacteria detection assay in labile blood products
Bonne, Richard. "Présentation de deux méthodes originales visant à faciliter dans les IAA, la mise en oeuvre des bonnes pratiques d'hygiène et de fabrication ainsi que de la méthode HACCP, telles que définies par le Codex Alimentarius." Toulouse 3, 2013. http://thesesups.ups-tlse.fr/2161/.
Full textThe implementation of a food safety management system (FSMS), based on good hygiene and good manufacturing practices (GHP/GMP) and HACCP, is a mandatory requirement imposed on the food businesses (FB) and established by the European Regulation as well as by the WTO rules which are transpositions of the Codex Alimentarius prescriptions. This FSMS implementation turns out to be a difficult process for many FB managers because of the complexity of the available documents and methods. This thesis describes two original facilitating methods for the implementation of specific Codex requirements. The method known as "comprehensive hygiene management in food industries" is a rational system of organization for the implementation of GHP / GMP, while the "decision tree alternative method" makes it possible to avoid frequent failures in the use of the "Codex decision tree" for CCPs determination. These two innovative methods were developed by applying a deductive reasoning procedure on a validated scheme of occurrence of health and/or economical food accidents
Hartard, Cédric. "Les bactériophages ARN F-spécifiques comme indicateurs du danger viral lié à la pollution fécale des matrices hydriques et alimentaires." Thesis, Université de Lorraine, 2017. http://www.theses.fr/2017LORR0152/document.
Full textEnteric viruses are a leading cause of fecal-oral route transmitted diseases and currently, conventional fecal indicator bacteria (i.e. Escherichia coli, enterococcus) fail to assess this kind of hazard. In this context, the use of more efficient indicators to assess the hazard linked to viruses in water or foodstuff is required. F-specific RNA bacteriophages (FRNAPH) present numerous benefits for this purpose. Of enteric origin, these viruses are found in high concentrations in wastewater. Sharing many structural similarities with pathogenic enteric viruses, FRNAPH are easily cultivable and their potential to track the origin of the pollution is also often investigated. However, some limits are still associated with these indicators, regarding to their ability to track the origin of the pollution or concerning the lack of correlation with pathogens. In this context, the aim of this work was to make clear the potential of FRNAPH as fecal and as viral indicators in environmental waters and shellfish. As a first step, their ability to track human pollution was optimized. In addition, our results underlined the gains bringing by FRNAPH detection, especially when focusing on shellfish microbiological quality management. Indeed, unlike fecal indicator bacteria, the accumulation of FRNAPH and their persistence in shellfish have been found to be close to that of enteric viruses (i.e. norovirus). Furthermore, when using comparable methods for their detection, high correlation was observed between human FRNAPH and norovirus in shellfish. Taking into account these observations, a sensitive method allowing the detection of infectious FRNAPH of human origin was developed to improve viral hazard management in water and food commodities (e.g. environmental waters, shellfish, soft fruits, leaf)
Florea, Anca Stefana. "Electrochemical affinity sensors for biomedical, food and environmental applications." Thesis, Lyon 1, 2015. http://www.theses.fr/2015LYO10126/document.
Full textElectrochemical sensors provide reliable and inexpensive tools for the determination of biological and chemical compounds with high sensitivity and selectivity, in the fields of clinical diagnosis, environment protection and food industry. Immunosensors hold particular promise, combining the high specificity of immuno- reactions with the sensitivity of electrochemical methods. Artificial receptors based on molecularly imprinted technique attracted considerable attention in bioanalytical sciences due to inherent advantages over natural receptors, such as high stability in harsh conditions and freedom of molecular design towards a wide range of molecules. The aim of the thesis presented here was to develop electrochemical affinity sensors based on various recognition receptors for environment monitoring, food safety and biomedical field. The first part of the thesis reviews the current state of knowledge in these fields. General aspects of electrochemical immuno- and apta-sensors are presented herein, together with several examples reported in the literature for the detection of cancer biomarkers. The advantages of integrating nanomaterials in sensing devices are then presented. At last, several aspects of the molecularly imprinted polymers are introduced. The personal contribution part is structured in three chapters, that include the methodology and results obtained for the development of biosensors for the detection of Mucinl tumor marker, the first chapter being focused on bioassays based on magnetic beads and second chapter on a label-free aptasensor based on gold nanoparticles, and finally, a third chapter dedicated to the molecularly imprinted-based sensors for the detection of explosives, drugs, hormones and pesticides
Vial, Céline. "Contribution à la mise au point de tranches de kiwi de 4ème gamme : études biochimiques et microbiologiques." Montpellier 2, 1992. http://www.theses.fr/1992MON20012.
Full textSevrin-Jaloustre, Séverine. "Appréciation quantitative des risques pour l'évaluation de mesures de maîtrise sanitaire dans une filière agro-alimentaire. Application à Clostridium perfringens en restauration hospitalière." Phd thesis, AgroParisTech, 2011. http://pastel.archives-ouvertes.fr/pastel-00781728.
Full textViale, Béatrice. "LE STATUT JURIDIQUE DE L'ALIMENTATION EN DROIT COMMUNAUTAIRE - DROIT DE L'ALIMENTATION." Phd thesis, Rennes 1, 2001. http://tel.archives-ouvertes.fr/tel-00106335.
Full textUne remise en cause de cette approche est manifeste depuis le déclenchement de la crise de la " Vache folle " en mars 1996. Crise de prime abord conjoncturelle, elle a eu de nombreuses implications notamment quant au mode d'appréhension de tout le secteur alimentaire, dont elle invite à revisiter le statut juridique.
Largement réorganisé, celui-ci tend à devenir le cadre d'une action cohérente grâce à la consécration de la notion de chaîne alimentaire et au développement d'instruments adaptés à la gestion des risques. De plus, la poursuite de l'objectif de sécurité alimentaire oriente désormais toute l'action communautaire fondée sur les principes de précaution et de prévention. Ces nouvelles orientations devront être pleinement articulées avec les exigences des accords multilatéraux conclus dans le cadre de l'OMC et, par ailleurs, elles confortent, peu à peu, les droits à la protection de la santé et à l'information reconnus aux consommateurs. Faudrait-il au-delà leur reconnaître un droit fondamental à la sécurité ?
Tapsoba, Tebkieta Alexandra. "Essays on remittances and climate variability in Burkina Faso." Thesis, Université Clermont Auvergne (2017-2020), 2017. http://www.theses.fr/2017CLFAD026/document.
Full textEnvironmental and climate issues constitute a predominant and much up to date topic in international discussions. It is broadly recognized that developing countries are the most vulnerable when it comes to climate issues, albeit, they are the least responsible. Finding ways for households’ of these countries to cope with the harmful effects of climate goes through the necessity to identify mechanisms that can help, such as migration and remittances. The latter have been found in the scientific literature to be a hedge against several shocks such as natural disasters, conflicts, and economic shocks.This research thesis explores the theme of remittances, and climate variability in developing countries, by focusing on a sub-Saharan African country, Burkina Faso. Compared to its neighbouring countries, Burkina Faso has not been subject to much research in the migration and remittances. The country however has a vast migration history that is worth studying. Climate issues are also rampant, and very important, as the country is practising subsistence agriculture. The findings of this dissertation show that remittances have a positive impact on households’ ability to cope with the negative effects of climate issues. Yet these important sources of inflows for developing countries might have some limitations. The first chapter assesses the impact of remittances and climate variability on the food security of households in Burkina Faso. We build a food security index using principal component analysis that encompasses the accessibility and utilization dimensions of the concept. We also compute an inter-annual rainfall index and the latter is found to have a negative impact on food security. After controlling for potential endogeneity issues using distance variables and migrant characteristics as instruments, remittances are found to enhance food security. Results are robust to alternative measures of food security and alternative calculations of rainfall variability. In Chapter two, we assess the impact of remittances and natural disasters on poverty in Burkina Faso. To do so, we construct a poverty index using household’s housing characteristics and Multiple Correspondence Analysis method. Propensity score matching method is used as an empirical strategy, and results show that remittances have a negative impact on poverty. Another important result is that remittances have a higher impact on the resilience of households, when they have experienced disasters in the past. Therefore, when it comes to natural disasters, these inflows act as an important tool for populations to be more resilient. Lastly in chapter 3, we assess the role of remittances and drought on diversification strategies of farm-households. This chapter uses the same database as chapter two, and also takes advantage of the climate database of the Climatic Research Unit (CRU) of University of Anglia . Results show that remittances by themselves are not sufficient to push households towards costly diversification strategies, and they need to be conditional to households’ wealth status to be effective. Climate conditions as well as soil properties have not surprisingly been found to significantly push households towards diversifying their income.This research sheds light on the undeniable importance of remittances in helping households to cope with harmful effects of climate, but also on its limitations. International and national policies that will contribute in a more efficient and less costly conveying of these inflows are to encourage. However in order for remittances to be efficient, reducing inequalities and poverty within populations is a necessity. Otherwise, they can contribute to dig further poverty gaps and extensively the vulnerably levels inside populations. Therefore, remittances should be seen as complementary to other sources of income, rather than substitute
Touffet, Maxime. "Transferts et réactivité de l’huile au cours du procédé de friture." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLA019/document.
Full textBatch deep-frying has been investigated within the collaborative project FUI Fry’In (ref. AAP17, 2014-2018) with the aim of proposing breakthrough innovations for small and medium size appliances. The PhD thesis was part of the project and focused on two specific adverse effects of deep-frying on food products: oil thermo-oxidation responsible for break-down products and off-flavors, and oil pickup process usually favored relatively to oil dripping. The work was carried out by combing direct measurements (FTIR-ATR spectroscopy and imaging, photoionization, DSC measurements, fast imaging…) and multiscale modeling (oil flow and oil dripping during product re-moval, Lagrangian description of reactions in aniso-thermal flows, coupling with oxygen dissolution kinetics). The complex problem of thermo-oxidation was split into simpler mechanisms by noticing that hydroperoxides are a kind of long-lived form of or-ganic oxygen, which trigger propagation in deep re-gions under anoxia. Their decomposition lead to various scission products, which were shown to be in-fluenced by both local temperature and oxygen con-centration. Oil uptake was described as the net balance between the amount of dragged oil during product removal and oil dripping at the tips of the product. The dripping process studied on both metal-lic sticks and real products occurs in less than few seconds and leads to a formation of four to eight drop-lets. The detailed drainage kinetics in anisothermal conditions were captured and predicted with the pro-posed mechanistic models. The specific mechanism of oil uptake during the immersion stage was eluci-dated and was shown to occur only in parfried frozen products
Soua, Ahmed. "Vehicular ad hoc networks : dissemination, data collection and routing : models and algorithms." Phd thesis, Institut National des Télécommunications, 2013. http://tel.archives-ouvertes.fr/tel-00919774.
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