Thèses sur le sujet « Système de santé intégré »
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Batomen, Kuimi Brice Lionel. « Déterminants de l'accès à un système de traumatologie intégré : une étude de cohorte rétrospective ». Master's thesis, Université Laval, 2014. http://hdl.handle.net/20.500.11794/25278.
Texte intégralFew data are available on access to integrated trauma systems. We therefore conducted a population-based retrospective cohort study to firstly describe access to trauma care, identify its determinants in an integrated trauma system and secondly evaluate among major trauma admissions, the influence of access on hospital mortality and length of stay (LOS). We included all adults admitted to acute care hospitals for trauma in the province of Québec between 2006 and 2011 using an administrative hospital discharge database. Of the 136,653 injury admissions selected, 75% were treated within the trauma system. Among major trauma (n=25,522), 90% had access to specialized trauma care. The region of residence followed by mechanism of injury, number of trauma diagnoses, injury severity and age were the most important determinants of access to trauma care. Mortality and LOS for the small proportion of patients treated in non-designated centers were similar to those of patients treated in trauma centers. These studies provide evidence that the Québec trauma system performs well in its mandate to offer appropriate treatment to victims of injury that require specialized care.
SAINTHUILE, Thomas. « Récupération d'Energie Vibratoire pour Systèmes de Contrôle Santé Intégré de Structures Aéronautiques ». Phd thesis, Université de Valenciennes et du Hainaut-Cambresis, 2012. http://tel.archives-ouvertes.fr/tel-00819117.
Texte intégralSainthuile, Thomas. « Récupération d'Energie Vibratoire pour Systèmes de Contrôle Santé Intégré de Structures Aéronautiques ». Thesis, Valenciennes, 2012. http://www.theses.fr/2012VALE0036/document.
Texte intégralThe aim of this thesis is to develop a self-powered Structural Health Monitoring (SHM) system for aeronautical applications. This system has to be fully autonomous and has to be able to carry out SHM tasks such as damage detection and location. The energetic autonomy of the system is provided by a vibrational energy harvesting technology using bonded SHM piezoelectric transducers. In this document,an analytical model of the energy harvesting process has been proposed. This model, validated by the Finite Element Method (FEM), allows the optimization of the energy harvesting system by determining the ideal type of transducers as well as their optimal dimensions and locations. Then, this model has been applied to a configuration aiming to be more representative of the in-flight vibrations experienced by a structure. Good agreement has been found between the analytical simulation and the experimental measurements. A power of 1.67mW has been harvested and the wideband capability of the transducers has been verified. Afterwards, the possibility of using the vibrational energy harvesting technology to control composite structures on assembly line has been investigated. For this case study, a transducer strategically located nearby an available power supply generates Lamb waves throughout the structure to tackle the absence of natural vibration. The remaining sensors, spread all over the structure, convertthe mechanical vibrations into electrical power. Using this technology, a power of 7.36mW has been harvested. Finally, this SHM system has also been able to detect a tool drop on the composite structure and to light simultaneously and autonomously a light-emitting diode (LED) simulating the consumption required to transmit the information wirelessly
Boukabache, Hamza. « Etude et développement d'un noeud piézoélectrique intégré dans un micro-système reconfigurable : applications à la surveillance "de santé" de structures aéronautiques ». Phd thesis, INSA de Toulouse, 2013. http://tel.archives-ouvertes.fr/tel-00932251.
Texte intégralDuquenne, Laurent. « Développement d'une méthode d'estimation de la génération transitoire d'ondes de Lamb : Application à la modélisation d'un système de contrôle santé intégré ». Valenciennes, 2003. http://ged.univ-valenciennes.fr/nuxeo/site/esupversions/2807daf5-ac69-4a5c-a2ae-2ab8d5e7fb56.
Texte intégralFor several year, research has been undertaken to integrate a nondestructive evaluation system in the structure with the objective to facilitate regular monitoring. This " health monitoring system " would allow the selection of the components requiring repairs. The technique considered is the use of the Lamb waves generated by integrated piezoelectric transducers which are able to emit or to receipt this waves. Nevertheless, the control of the generated waves by these transducers is still a problem. The aim of this work is then to develop a method allowing to estimate the transient generation of Lamb wave. The advantage of the hybrid method finite elements/Normal mode expansion is the direct computation of the contribution of each mode. The assumptions have been checked and the results have been confronted successfully with experimental results
Virone, Gilles. « Architecture et simulation locales du système d'information domotique-santé intégré a domicile (sidø) pour la détection de situations à risque et l'aide à la décision ». Université Joseph Fourier (Grenoble), 2003. http://www.theses.fr/2003GRE19016.
Texte intégralWe will begin with a review of Health Smart Homes (HSH) around the world before moving onto a description of our system, the HISø or "Health Integrated Smart Home Information System", developed at the TIMC laboratory in Grenoble. We hypothesize that there is a connection between biological and social rhythms, behavior, and thus with physical activity which we can measure by observing a subject's displacements within the habitat. We created the term "activity circadian rhythms" (ACR) to refer to the behavioral measurement of patient activity
Barnoncel, David. « Etude d'un système de contrôle santé intègré pour structures sandwich composites utilisant des transducteurs piézo-électriques minces ». Paris, CNAM, 2006. http://www.theses.fr/2006CNAM0501.
Texte intégralThis PhD is a study of a Integrated Health Monitoring System (IHMS) for a sandwich structure : Rafale nose. The goal of the IHMS is to detect, localize and estimate the size of damages appearing during the life. The characterization of the damages is made with Lamb waves that propagate in the structure. In order to have an integrated system we use slim piezo-electric devices. The use of the flexural wave at low frequencies is adapted to the shape of the damages. The method used with the IHMS needs to knowledge of the sandwich Lamb waves with charateristics (dissipation, Phases speed). In order to measure theses characteistics which have build a NDE system. That have also give a visualisation of the interaction of the waves with damages. The use of special signal processing method and a base references made by simulation with the IHMS signal gives a method to detect, localise and estimate the size of a real damage
Gautier, Sylvain. « La structuration territoriale des soins primaires à l'épreuve de l'épidémie de COVID-19 : quelle réponse de la médecine de ville aux situations sanitaires exceptionnelles ? » Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASR031.
Texte intégralThe territorial structuring of primary care can be defined as an evolving and strategic transformation process aimed at reorganising and strengthening the organisation of first-line healthcare services. This process involves moving from a traditional model of isolated practice to a more integrated and cooperative territorial organisation among professionals, leading the primary care sector to address territorial public health challenges. The management of exceptional health situations is one of these challenges. The main objective of this thesis is to study the relationship between the territorial structuring of primary care and the sector's capacity to respond to exceptional health situations, using the COVID-19 epidemic as an example.The first part of the thesis presents a mixed-methods study designed to better understand the concept of territorial structuring of primary care and to propose a typology for mainland France at the level of life-health territories. The qualitative component, conducted in seven territories, helped identify key factors of this structuring. Based on these factors, the quantitative component used a hierarchical clustering on principal components approach to define four types of life-health territories: territories that are poorly or not structured, territories with potential for structuring, territories in the process of structuring, and fully structured territories hosting a health territorial and professional community (HTPC).The second part of the thesis used this typology in a cross-sectional epidemiological study focused on changes in the activity of general practitioners during the first wave of COVID-19 in 2020. This study showed that well-structured territories allowed physicians to better adapt to the pandemic, notably through increased use of teleconsultation. The results highlighted a significant link between the level of territorial structuring of primary care and the adaptability of general practitioners.The third part focused on nursing homes and their adaptation to the crisis based on the territorial structuring of primary care. By evaluating several categories of nursing homes, the study demonstrated that those located in areas with well-structured primary care exhibited a better capacity to respond to the crisis, with fewer hospital admissions and lower mortality. This underscores the importance of cooperation between primary care and the medico-social sector to enhance territorial resilience.The territorial structuring of primary care appears to be an important lever for improving responses to health crises. This work has shown that territories with structured primary care organisations were better able to maintain continuity of care and collaborate with other health sectors. Future perspectives include strengthening this structuring, which serves as a catalyst for population-level responsibility among stakeholders, to better prepare the French healthcare system for future crises
Kulakovskyi, Andrii. « Développement d’un système SHM pour aéronef par ondes élastiques guidées ». Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLX021/document.
Texte intégralA guided wave-based structural health monitoring (SHM) system aims at determining the integrity of a wide variety of plate-like structures, including aircraft fuselages, pipes, tanks etc. It relies on a sparse array of piezoelectric transducers for guided waves (GWs) excitation and sensing. With a number of benefits, these waves are standing out among other methods as a promising method for the inspection of large structures. They can propagate on significant distances with small attenuation while being sensitive to surface and subsurface defects.This thesis presents studies conducted with the purpose of developing such a GWs-based SHM system that is capable of efficient defect detection, localization and sizing aeronautical plate-like structures made of aluminum and composite materials. Simulation and data-driven approaches are presented for determining principal characteristics of propagating GWs, namely modal group and phase velocities, 3D Green's functions etc. in structures of interest. They are then used for GWs signals processing in order to compute images representing the integrity of studied structures. This work also provides a comprehensive overview of DAS, MV and Excitelet defect imaging algorithms, determines their performance using statistical analysis of an extensive dataset of simulated guided waves imaging (GWI) results and proposes a method for sparse defect imaging.While defect detection and localization are straightforward from the image analysis, the defect sizing is a more complex problem due to its high dimensionality and non-linearity. It is demonstrated that this problem can be solved by means of machine learning methods, relying on an extensive database of simulated GWI results. Aforementioned defect imaging methods are baseline demanding. They are efficient under stationary operational conditions but vulnerable to environmental variations, especially to the temperature fluctuation.Finally, this work presents studies on the robustness of GWI methods against thermal effects, and a defect detection model capable of analyzing deteriorated GWI results is proposed. Different techniques for thermal effects compensation are reviewed, and improvements are proposed. Their effectiveness is validated for aluminum plates but further improvements are required to translate these techniques to composite plates
Zhou, Huan. « Etude théorique et expérimentale de systèmes à ondes de surface dans des structures multicouches piézomagnétiques pour des applications en contrôle santé intégré de MEMS par imagerie acoustique non linéaire ». Phd thesis, Ecole Centrale de Lille, 2014. http://tel.archives-ouvertes.fr/tel-00991915.
Texte intégralMétivier, Virginie. « Méthode d'application d'un système de management de l'environnement, de la sécurité et de la santé : cas du site industriel de production pharmaceutique Abbott ». Orléans, 2002. http://www.theses.fr/2002ORLE1045.
Texte intégralThe purpose of this report is to promote the implementation of a general method in respect of the environmental, safety and management systems for the pharmaceutical industry and more specifically for the industrial site for the Abbott laboratory. After giving an outline of the already existing environment, safety and hygiene management systems, we would develop the method and tools chosen to implement the management system for the Abbott site. Based on numerous examples we would also evaluate the results achieved by the new system. Eventually, we would analyse all sociological constraints and limits that held back the implementation of this environment, safety and hygiene management system that was chosen for the industrial site
Pagonis, Daniel. « Construire un système d'information hospitalier intégré ». Université Joseph Fourier (Grenoble), 1994. http://www.theses.fr/1994GRE19006.
Texte intégralRossetto, Olivier. « Un système intégré neuromimétique analogique modulaire ». Grenoble INPG, 1991. http://www.theses.fr/1991INPG0103.
Texte intégralVilleneuve, Lucie. « La circulation de l'information clinique dans un réseau de services intégrés : des facteurs d'adoption et de résistance à l'implantation d'un système informatisé ». Thesis, Université Laval, 2007. http://www.theses.ulaval.ca/2007/24534/24534.pdf.
Texte intégralDalle, Prisca. « Système intégré pour l'encapsulation monocouche de cellules ». Thesis, Grenoble, 2012. http://www.theses.fr/2012GRENS036/document.
Texte intégralEpileptic seizures arise from pathological synchronization of neuronal ensemble.Seizures originating from primary motor cortex are often pharmacoresistant, and many times unsuitable for respective surgery because of location of epileptic focus in eloquent area. Basal ganglia play important role in seizure propagation. Micro electrode recordings performed during previous studies indicated that input structures of basal ganglia such as GPe, Putamen and Subthalamic nucleus (STN) are strongly modified during seizures. For example the mean firing rate of neurons of the STN and Putamen increased and the percentage of oscillatory neurons synchronized with the ictal EEG was higher during seizures as compared to interictal periods. Pilot studies in humans have shown the possible beneficial effect of chronic DBS applied to STN in treatment of pharmacoresistant motor seizures. Our study was aimed at studying the therapeutic effect of electrical stimulation of input structures of basal ganglia . We first developed a stable, predictable primate model of focal motor epilepsy by intracortical injection of penicillin and we documented it's pharmacoresistence. We then stereotactically implanted DBS electrodes in the STN and Putamen. The stimulator was embedded at the back of the animals. Subthreshold electrical stimulations at 130 Hz were applied to STN. Stimulator was turned ON when penicillin was injected. Sham stimulation at 0 volt was used as a control situation, each monkey being its own control. The time course, number and duration of seizures occurring in each epochs of 1 h were compared during ON and sham stimulation periods. Each experimental session lasted uptoo 6 hours,We also studied preventive high frequency stimulation of STN and subthershold low frequency stimulation of Putamen with 5 Hz and 20 Hz in the same model .Finally we studied combined effects of high frequency STN and low frequency Putamen stimulation in one monkey Results: Data was analysed from 1572 seizures in 30 experiments in three monkeys for chronic STN stimulation , 454 seizures in 10 experiments in one moneky during preventive STN stimulation ,289 seizures from 14 experiments in two monkeys during LFS putamen stimulation and 477 seizures from 10 sessions during combined STN and Putamen stimulation in one monkey The best results were observed during chronic STN stimulation The occurrence of first seizure was significantly delayed as compared to sham situation. Total time spent in focal seizures was significantly reduced by ≥69% on an average (p ≤0.05) after STN stimulation, due to a significant decrease in the number of seizures especially so during the first 3 hours after stimulation. The duration of individual seizures reduced moderately. Bipolar and monopolar stimulation modes were equally effective Preventive HFS STN (in one specimen) was not found to be superior to acute stimulation. LFS Putamen alone was effective but mainly in first two hours of stimulation .In a combined HFS STN and LFS Putamen stimulation the effect of stimulation in terms of seizure control was modest and poor compared to HFS STN alone or LFS Putamen alone. This study provides original data in primates showing the potential therapeutic effect of chronic HFS-STN DBS to treat focal motor seizures . A discussion explaining these
Bouredji, Zouhir. « Conception d'un système intégré de commande : pollux ». Grenoble INPG, 1987. http://www.theses.fr/1987INPG0060.
Texte intégralBoule, Ivan. « Fenix : un système multifenêtres intégré à Unix ». Grenoble INPG, 1987. http://tel.archives-ouvertes.fr/tel-00324433.
Texte intégralBautista, Delgado Alfredo Farid. « Conception d'un système intégré ultra basse tension pour l'électroencéphalographie ». Université Joseph Fourier (Grenoble), 2009. http://www.theses.fr/2009GRE10088.
Texte intégralIn this dissertation a full custom Analog Front End (AFE) integrated circuit (IC) for an Electroencephalography system (EEG) is designed and implemented. The AFE consists of an ultra-low voltage amplifier and a Continuous-Time Σ∆ Analog-to-Digital converter (CT Σ∆ ADC). The AFE was implemented in 0. 35 um CMOS process technology, and it works with a supply voltage of 0. 5V. In order to provide a true low voltage operation, all the transistors are working in the subthreshold region. The proposed preamplifier's topology consists of an input stage based on a folded cascoded amplifier and an output stage based on a current source amplifier. The CT Σ∆ Modulator was selected to provide a very low power dissipation. The decimation stage is based in a Finite Impulse Response (FIR) filter. The Modulator works with a supply voltage of 0. 5V while the FIR stage, which was not optimized, works with a 1V power supply voltage. Testing results show that the OTA has an open loop gain of 38:8dB and 18. 6 dB in its 1st and 2nd stages, respectively. Also, the OTA device has bandwidths in its 1st and 2nd stages of 10. 23KHz and 6. 45KHz, respectively. Other obtained OTA character-istics are: output noise of 1:4mV rms@100Hz and power dissipation of 1,89uW. The ADC shows the following characteristics: SNR of 94. 2dB, ENOB of 15:35bits, INL of +0. 34/-2. 3 LSB, DNL +. 783/-. 62 LSB without missing single code. The modulator dissipates only 7uW. The proposed AFE has one of the best performance among all the devices reviewed in today's literature. The AFE's performance make it suitable for biomedical low-power dissipation applications such as portable EEG devices. In addition to the CT-Σ∆ modulator developed in 0. 35um CMOS technology, an alternative Modulator was designed using a 0. 13um CMOS technology, based on the Discrete Time counterpart. The simulation shows a SNR of 92dB and ENOB of 14. 99dB for an oversampling rate (OSR) of 150
Boissier, Olivier. « Problème du contrôle dans un système intégré de vision : utilisation d'un système multi-agents ». Phd thesis, Grenoble INPG, 1993. http://tel.archives-ouvertes.fr/tel-00005123.
Texte intégralMehdi, Kamel. « Système Intégré de Conception des Boîtes de transmission par Engrenages ». Lyon, INSA, 1995. http://www.theses.fr/1995ISAL0029.
Texte intégral[The design process of mechanical product gathers generally different activities. Each activity is generally modeled by a program that executes called from methods defined in different classes of objects. Similarly, different activities manipulate the same objects without any interaction between them. However, a simple modification of attributes of an object can imply modifications on attributes of the other objects manipulated during others activities. In the thesis, we present an integrated design system of gearboxes. In this system, we present an approach that allows to cooperate the different design activities of transmission gearboxes. This approach is based on an object oriented representation of the different mechanical components of the gearbox. This representation allows the definition of a common component library for all design activities. The compatibility of the system is maintained with the different relationship definition between objects, constraints, design rules and methods. This library communicates between a module of data processing, a module of data basis and the user. ]
Martin, Lionel. « Objet portable : du pixel au système intégré de reconnaissance d'iris ». Aix-Marseille 3, 2009. http://www.theses.fr/2009AIX30061.
Texte intégralDue to technological convergence, mobile devices are becoming more and more powerful and integrate more peripherals including CMOS image sensors. Offer a solution to facilitate the use of these mobile devices is one of the objectives of this research work. How can this system authenticate our identity using biometrics and how can it communicate with us as simply as possible? To answer these questions, we focused on the design level of the pixel on the imaging matrix architecture to add new functions. We propose an iris recognition system that improves security and facilitates the use of mobile devices ; we examined a man-machine interface based on gesture recognition. First, we will evaluate Photogate active-pixel sensors (APS) ; from their modeling up to pixel characterization. A test vehicle using HCMOS9i technology enabled us to compare 24 Photogate pixels. We will examine the work concerning the integration of an image stabilizer function on an image sensor, a key feature for mobile devices. Then we describe our work on a low-cost iris recognition video system. This work led to a new strategy for acquiring good-quality images using video capture techniques. To highlight the results of our study, we built a demonstrator to confirm the automatic detection and acquisition of irises that operates in real-time. In the last part, the problems of the man-machine interface where a touchscreen is replaced by a viewing system using two sensors are considered
Gaudel, Quentin. « Approche intégrée de diagnostic et de pronostic pour la gestion de santé des systèmes hybrides sous incertitude ». Thesis, Toulouse, INSA, 2016. http://www.theses.fr/2016ISAT0019/document.
Texte intégralThis study takes place in the field of system health management, which aims at developing maintenance aid tools, but also at improving the systems autonomous decision-making in case of failures. In this context, diagnostic techniques determine whether and why the system is down, while prognostic techniques determine when failures will occur and their consequences. If they seem to be correlated, they are usually studied separately because the time scales manipulated by the two processes are very different. This work aims at developing a tool that integrates both diagnosis and prognosis methods for the monitoring of hybrid systems, whose dynamics are both continuous and discrete. The proposed methodology, based on hybrid particle Petri nets, is applied to a planetary rover to demonstrate its usability in real cases through the management of knowledge-based and data-based uncertainty
Parvaresh, Parviz. « Système intégré de gestion des analyses pour un laboratoire interprofessionnel laitier ». Compiègne, 1986. http://www.theses.fr/1986COMPI226.
Texte intégralNowadays, one of the major problems facing the inter professional dairy laboratories, is that of a rapid transfer of the analysis results to the producers as well as the factories. An integrated system for collection and distribution of data processing results has been developed and installed in Amilly laboratories. Each automatic analyser, coupled with an acquisition and pre-processing system, uses a mini computer equipped with the specific interfaces. All these acquisition system are connected, as a network, to the central computer which assembles the results and manages the data base. A multiple output facility provides the results, for the dairy producers and farmers, in either printed or fast reference forms. Summary statements are drawn up for the veterinary services in charge of the livestock. Certain results, based on computing informations, are prepared to use by the dairy control service. The system takes into account the specific limitations of this type of data as regards the viability, stocking and the availability of the data on line for a long period of usage
Idelmerfaa, Zahra. « Méthodologie de génération de la conduite d'un système intégré de production ». Nancy 1, 1994. http://www.theses.fr/1994NAN10002.
Texte intégralHamel, Simon. « Micro-pile à combustible polymérique avec système de gestion d’eau intégré ». Thèse, Université de Sherbrooke, 2017. http://hdl.handle.net/11143/10473.
Texte intégralItani, Khaled. « Récupération d’énergie pour système intégré moteur roue, application au véhicule électrique ». Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLN025/document.
Texte intégralThe thesis will address the quantification of power flow going through the different energy static and dynamic conversion systems to attain the chemical / electrostatic / mechanical storage elements during a hybrid regenerative brutal braking of a front-wheel driven electric vehicle. The electric vehicle is equipped by two integrated wheel-motors independent sets. The control of the converters and electrical machines is also treated. The problematic concerns the brutal regenerative braking case imposing high electrical and mechanical constraints on energy conversion and storage elements. The simulation tool adopted is Matlab/Simulink®. A detailed model of the used electric vehicle has been developed in order to be able to simulate the vehicle behavior with respect to the braking forces distribution delivered by the repartition and quantification of braking forces system. A study of the kinematics and dynamics of the vehicle according to different road types will be also considered. This study will be used retrospectively in the formulation of the braking forces distribution laws. The motors used are interior permanent magnet synchronous type. The objective is to ensure high electrical braking torque at high driving speeds of the vehicle. To this end, the optimal control of these motors will be based on a new current references generation method assuming then a high regenerative torque and therefore an improvement in the recovered energy. The hybrid storage system includes a Li-Ion battery and supercapacitors cells to reduce stress on the battery and to extend its life. The power structure of the system will be analyzed as well as the 3-level DC/DC converter interfacing the ultracapacitor with the DC bus proposed control system. A braking resistor controlled by a pseudo- cascaded controller will also be integrated to reduce, if necessary, the constraints on the battery. The evaluation and distribution of braking forces on the four wheels depending on road conditions are key elements for the stability of the vehicle during braking. The method of distribution and quantification of braking forces proposed should maintain this stability , meet international standards and take advantage of the presence of wheel motors in the front of the vehicle to maximize the energy recovered. The work has been extended to include a comparative study with a system containing a kinetic energy storage element as a secondary energy source for a braking and traction vehicle operation. The thesis is the starting point of a research collaboration between IFSTTAR / Satie and the Electrical Engineering Department of Cnam- Liban, associated center of the Conservatoire National des Arts et Métiers ( CNAM ), Paris, France
Rhiat, Ahmed. « Système intégré pour la réalisation d'ossatures et charpentes par ordinateur : conception et validation du système d'informations ». Valenciennes, 1986. https://ged.uphf.fr/nuxeo/site/esupversions/b0c5da47-0511-4a10-9ea5-d10a41411a9e.
Texte intégralEl, Rammouz Hala. « Réalisation de matrices de micro-transducteurs acoustiques : application au controle santé intégré ». Thesis, Valenciennes, Université Polytechnique Hauts-de-France, 2021. http://www.theses.fr/2021UPHF0010.
Texte intégralMicro-transducers networks are experiencing strong development in order to meet the require- ments of Structural Health Monitoring (SHM). The latter makes it possible to assess at any time the state of health of the structure while integrating a Non-Destructive Evaluation (NDE) system therein. Indeed, a network of micro-transducers makes it possible to acquire several signals at the same time without carrying out a mechanical scanning making it possible to characterise the structure. At the same time, the use of ultrasonic guided waves provides an e_ective tool for the characterisation of structures. However, they have complex characteristics which make the analysis of their interactions with defects complicated. For this, it is desirable to promote the propagation of a single-mode in the structure. In this context, this thesis aims to present a model of a micro- transducers matrix for the reception of guided waves in a cylindrical structure, in particular, the _exural mode F(1,1). First, the realisation and characterisation of the micro-transducer matrices are presented. The results showed their ability to operate in the frequency range (60 kHz - 70 kHz) despite its high resonant frequency. Second, the optical and electrical measurements carried out on the matrix validated its use for applications in the SHM and the NDE of cylindrical structures while generating the F(1,1) mode
Druet, Tom. « Tomographie passive par ondes guidées pour des applications de contrôle santé intégré ». Thesis, Valenciennes, 2017. http://www.theses.fr/2017VALE0032/document.
Texte intégralThis manuscript presents a baseline-free quantitative method for the imaging of corrosion flaws present in thin plates. This method only requires an embedded guided waves sensors network in a fully passive way. The field ofapplications are Structural Health Monitoring (SHM) of critical structures with heavy constrains on both sensors intrusiveness and diagnostic reliability. A promising solution allowing to increase the number of measurement points without increasing the intrusiveness of the system is provided by the Fiber Bragg Gratings (FBGs). However, unlike piezoelectric transducers generally used in SHM, the FBGs cannot emit elastic waves. The idea consists in using passive methods in order to retrieve the Green function from elastic diffuse fields - naturally present in structures - measured simultaneously between two sensors. In this manuscript, two passive methods are studied: the ambient noise correlation and the passive inverse filter. It is shown that the latter gives better results when coupled with tomography. Several tomography algorithms are assessed with numerical simulations and then applied to active and passive datasets measured by a PZT network. In order to make passive tomography robust, a time of flight identification method is proposed, based on a time-frequency representation. Finally, a novel experimental demonstration of passive measurements with FBGs only is presented, suggesting high potential for FBGs passive tomography
Delcourt, Jonathan. « Un système intégré d'acquisition 3D multispectral : acquisition, codage et compression des données ». Phd thesis, Université de Bourgogne, 2010. http://tel.archives-ouvertes.fr/tel-00578448.
Texte intégralGhroud, Soumeya. « Une approche orientée objet pour la conception d'un système intégré de production ». Lyon, INSA, 1996. http://www.theses.fr/1996ISAL0104.
Texte intégralThis study focuses on the contribution of oriented object software engineering to the production system integration by means of CIM. Developments have been effected in order to define a modelling method adapted to integrated manufacturing systems (IMS) and to design a flexible cell control system in a validation aim. Modelling problems lie principally firstly in the lack of strictness of some usual formalisms, then in the juxtaposition of different paradigms to cover all system dimensions without taking care about integration, and lastly in taking into account system cycle life, including the absence of software support. An object oriented approach for IMS design is proposed. The recommended modelling steps include first definition of an integrating architecture for manufacturing system design. This architecture principally deals with the control system while taking into account information and communication aspects. Then analysis and design of the system are done to lead to an executable model of this system. Our contribution takes place at a methodological level. A method covering all the development cycle is defined. It is founded on a two-step process: structured and then abject oriented. This method is based on the Use-Case method which allows a user oriented approach. It makes use of a combined abject oriented and Petri nets formalism in an original way. This method is then applied to three successive abstraction levels: interface, objects and operations. Advantages are direct superposability between the object model and the dynamic model, assurance of model trackability and thus possible automation of the coherency control and code generation. This method has been valited by the development of a flexible ail supervisor for AIPRAO
Nguyen, Anne-Marie. « Étude et réalisation d'un système micro-intégré de mesure des champs magnétiques ». Paris 11, 1997. http://www.theses.fr/1997PA112073.
Texte intégralHamacher, Silvio. « Etude et développement d'un système intégré de modélisation graphique pour les problèmes d'optimisation ». Châtenay-Malabry, Ecole centrale de Paris, 1995. http://www.theses.fr/1995ECAP0431.
Texte intégralBlersch, Raillard Susanne. « La régulation du système de santé allemand ». Paris 9, 1996. https://portail.bu.dauphine.fr/fileviewer/index.php?doc=1996PA090069.
Texte intégralToday, the purpose of health care systems' regulations is to improve the efficiency of the expense allocation process while containing the expense growth. Ever since the 1970's, the German state crafts the health care policy through reforms, the most interventionist of which being the reform set up by Seehofer. Up until now, the regulation mechanisms to move the German health care system out of the crisis have respected the founding principles of the German social security established by chancellor Bismarck in 1883. In this study, the economic relationships which characterize the German health care system, have been analyzed thoroughly, the decisions of the different groups of economic interest. Up until the reforms of 1989 and 1993, the German health care system has been characterized by a neoliberal-like regulation whose process was determined by the relationships between professional unions. In the crisis context of the existing formal and decentralized regulation, the German state has acted to rescue the social security system. The purpose of this study is to show that it is possible to introduce limited free market elements in a health care system without changing its founding socio-political principles. The example of Germany shows that the instruments set up by Seehofer are aimed at inducing decentralized players (public and private payors and health care professionals) to behave in an efficient manner within strict budget guidelines. These regulation mechanisms are pushing towards a buyer's market environment fostering competition among health care suppliers. Eventually, the German health care system will be managed according to the usually prevailing rules of the "social market economy". The role the German state would, then, be to oversee the overall competitive environment and warrant health care coverage for low income citizens and the poorest among them
Ammar, Walid. « Système de santé et réforme au Liban ». Bordeaux 2, 2001. http://www.theses.fr/2001BOR28837.
Texte intégralThe objective of this thesis is to study the situation of nurses in Lebanon based on a long experience in this field in this country. We decide to seek the causes of this occultation and list the encountered problem. We have started in 1996 study that has shown that nurses in Lebanon belong to a young, single female population with a very short professional carrier averaging 5 years. Nurses live badly due work conditions described, as stressful and hard. The load is both physical and mental. The burn out syndrome affects the majority, of this group. Adding to their lifestyle, the lack of esteem to their not well defined profession. This social group was unable to find structures that will help him to be organized. The study helps us to identify the problems that impeach this group from having its well-defined identity. We were able to formulate four major causes : - The immaturity of the young nurses. - The lack of the elaboration of their specific science. - The lack of structure. Suggestions, that can help this social group to find it self and acquire a real identity, the structures that well help this group to be organized. The reorientation of teaching programs towards specific knowledge, consequently, towards an essential role able to health needs of the human being
Balbal, Larbi. « Santé et développement, un constat critique : l'exemple du système de santé marocain ». Dijon, 1988. http://www.theses.fr/1988DIJOE007.
Texte intégralDurand, Suzanne. « Mesures d'efficience d'un réseau intégré de services pour les personnes âgées ». Thèse, Université de Sherbrooke, 2010. http://savoirs.usherbrooke.ca/handle/11143/368.
Texte intégralMakhloufi, Abdelkrim. « Système de soins, et politique de santé en Algérie ». Paris 9, 1987. https://portail.bu.dauphine.fr/fileviewer/index.php?doc=1987PA090005.
Texte intégralTelandro, Vincent. « Conception d'un système d'alimentation intégré dédié à la sécurisation des cartes à puce ». Phd thesis, Université de Provence - Aix-Marseille I, 2007. http://tel.archives-ouvertes.fr/tel-00268363.
Texte intégralKhalid, Cherti. « Le développement d’un prototype intégré de système d’information pour dirigeants : Le cas MNCI ». Mémoire, Université de Sherbrooke, 1994. http://hdl.handle.net/11143/8230.
Texte intégralEl, Khalkhali Imad. « Système intégré pour la modélisation, l'échange et le partage des données de produits ». Lyon, INSA, 2002. http://theses.insa-lyon.fr/publication/2002ISAL0052/these.pdf.
Texte intégralIn Virtual Enterprise and Concurrent Engineering environments, a wide variety of information is used. A crucial issue is the data communication and exchange between heterogeneous systems and distant sites. To solve this problem, the STEP project was introduced. The STandard for the Exchange of Product model data STEP is an evolving international standard for the representation and exchange of product data. The objective of STEP is to provide the unambiguous computer-interpretable representation of product data in all phases of the product’s lifecycle. In a collaborative product development different types of experts in different disciplines are concerned by the product (Design, Manufacturing, Marketing, Customers,. . . ). Each of these experts has his own viewpoint about the same product. STEP Models are unable to represent the expert’s viewpoints. The objective of our research work is to propose a methodology for representation and integration of different expert’s viewpoints in design and manufacturing phases. An Information Infrastructure for modelling, exchanging and sharing product data models is also proposed
Cremades, Oliver Lázaro. « Réalisation d'un système d'évaluation économique intégré à un logiciel de simulation de procédés ». Toulouse, INPT, 1987. http://www.theses.fr/1987INPT012G.
Texte intégralLenclud, Thierry. « Contribution à la conception d'un système intégré de simulation des systèmes de production ». Valenciennes, 1993. https://ged.uphf.fr/nuxeo/site/esupversions/76ebbd0d-3026-459c-880b-74730600aa6b.
Texte intégralRené, Thierry. « Contrôle et régulation d'un système intégré automatisé de gestion : le cas d'I.B.M. Montpellier ». Montpellier 1, 1989. http://www.theses.fr/1989MON10015.
Texte intégralIn 1985, all ibm plant in europe are integrated in an unic management system: emls (european materials logistics systems). Ibm plant in montpellier is one of them. Its departement of "ordering and production control" is faced with a new system wich must be quickly understood, regulated and controled to garantee customers satisfaction while maintaining to lowest possible level of inventory. This study is intented to provide solutions wich unable the plant to achieve these objectives. It constitues an excellent practical case and covers a significant part of the theory: systemic analysis, production management, quality management, simulation, statistical data analysis, optimization of constrained and combined equations
Berthelot, Vivien. « Biochimie analytique de complexes de réparation de l'ADN : élaboration d'un système analytique intégré ». Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112386/document.
Texte intégralIn eucaryotic cells, DNA double-strand breaks are repaired through two main pathways : the homologous recombination and the non homologous end joining . Altough these pathways are well characterized, two particular aspects of the repair remain poorly understood :- If two separated pathways may occur in the cells, which mechanism(s) govern the choice of the pathway that will ultimately lead to the repair ?- If the double-strand break is induced by ionizing radiations – as those employed in anti-cancerous radiotherapy – how does the repair occur if the DNA ends at the edge of the break are not compatible with a direct ligation ? A proper knowledge of the proteins involved in this repair would allow the development of additives, useful to increase the efficiency of the radiotherapy.To investigate these questions, we designed a new analytical system allowing : 1) the specific recruitment of DNA double-strand break repair complexes on home-made chromatographic phases, 2) the separation of these complexes in a non-denaturing polyacrylamide gel and their subsequent visualization and 3) their biochemical characterization.The methodology developped in this work has been focused on the following points : 1) we designed and implemented a chromatographic system allowing the distinction between proteins recruited onto duplex DNA oligonucleotide with free DNA ends (mimicking DNA double-strand breaks) and proteins fixed onto the internal sequence of the same oligonucleotides ; 2) we adapted to our problematic a methodology of non-denaturing electrophoresis thus allowing the separation of the purified complexes while guaranteeing their integrity during the migration, 3) we also determined their composition by mass spectrometry after their visualization.The biochemical study has shown that the purified complexes were still functionnal, that is they were able to efficiently ligate two oligonucleotides. The study of the data provided by the mass spectrometry analysis of independant experiences proved that the complexes belonged to the DNA physiology and were especially representative of the diversity of the DNA repair pathways.Interestingly, we observed that some of the protein specifically recruited onto the the double-strand breaks were not known to be involved in the DNA repair (nucleotide synthesis, checkpoint, DNA topology, cytoskeleton).The rôle of these proteins should be characterized in cellulo especially with siRNA. On the other hand we will also use the methodological development described above to study the repair mechanisms of radio-induced DNA double-strand breaks occuring in the irradiated tumorous cells. To achieve this study we will elaborate new chromatographic phases with pre-irradiated oligonucleotides
Despringre-Bessière, Karine. « Détection d'obstacles sur route par télémétrie laser : évaluation des caractéristiques d'un système intégré ». Grenoble INPG, 1996. http://www.theses.fr/1996INPG0071.
Texte intégralAbou, Leyla Najib. « Contrôle santé intégré passif par corrélation de champ acoustique ambiant : Application aux structures aéronautiques ». Valenciennes, 2010. http://ged.univ-valenciennes.fr/nuxeo/site/esupversions/fa3a198c-8d6b-49e7-96ef-883d2c5a09e1.
Texte intégralStructural Health Monitoring (SHM) is an autonomous and permanent technique for checking the integrity of a mechanical structure. The interest of is to inspect the integrity of the structure in near real time, which increases reliability, and avoiding immobilization of the aircraft during the inspection phase, and thus reduce maintenance cost. The work presented here is devoted to the study of a passive SHM in aeronautics using an ambient noise cross correlation. Indeed, recent studies have shown a relationship between the correlation function of a diffuse field between two points, and the Green’s function between them. The aim is to exploit the mechanical vibrations in an aircraft during the flight. In a first step, the potential of this method is verified experimentally, and the problems and difficulties due to some imperfections of application are outlined. In a second step, a simulation tool is developed to better understand certain acoustic phenomena, and a solution to solve the problem caused by the imperfections of the application (non-diffuse field) is proposed and validated experimentally. Finally, an optimization of this solution is made with a quantification of the influence of certain parameters. For this purpose a statistical theoretical approach is made and compared with experimental results
Chapuis, Bastien. « Contrôle santé intégré par méthode ultrasonore des réparations composites collées sur des structures métalliques ». Paris 7, 2010. http://www.theses.fr/2010PA077122.
Texte intégralThis document presents the development of a Structural Health Monitoring (SHM) System for composite patches bonded to aluminum plates. These patches are used in aeronautic industries to repair cracked or corroded structures. The SHM System studied consists in three thin piezoelectric ceramic (PZT) discs embedded in the repair and used to generate and detect Lamb waves propagating in the structure. The defect is revealed by the echo emitted by the diffraction of the incident wave on the defect. The modelling of Lamb waves propagation in anisotropic structures enables to select the mode. In particular, the description of the focusing phenomenon shows that the use of A₀ mode has to be preferred when the anisotropy of the propagating medium is important. To set up the monitoring strategy some experiments have been performed. Pulse-echo measurements, for which the same disc is used to excite and to detect Lamb waves, are used. Moreover, it seems necessary to compare the signal measured in a given state to a baseline signal for which other non destructive techniques have checked the lack of defect in the structure. Finally, some fatigue mechanical résistance tests of a smart repair are presented. These tests have been achieved to verify that the introduction of the discs does not degrade the performances of the repair and to test the SHM System in an environment closer to operational conditions
Laloum, Bensadon Anne-Carole. « Qualité et régulation du système de santé hospitalier ». ENSMP, 1998. http://www.theses.fr/1998ENMP0955.
Texte intégralBrioude, Jean-Pierre. « La difficile informatisation du système de santé français ». Bordeaux 2, 1999. http://www.theses.fr/1999BOR2P092.
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