Dissertationen zum Thema „Jeu de potentiel“
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Osorio, Agudelo Diana. „Étude du potentiel d'un jeu numérique pour l'apprentissage du vocabulaire chez des apprenants d'anglais langue seconde du secondaire“. Master's thesis, Université Laval, 2018. http://hdl.handle.net/20.500.11794/31154.
Der volle Inhalt der Quelle"Notre recherche se situe dans le domaine de l’apprentissage des langues assisté par ordinateur (ALAO), plus précisément dans celui de l’intégration des jeux numériques pour l’apprentissage du vocabulaire. Bien que les recherches antérieures aient montré que l’apprentissage intentionnel de vocabulaire et la réutilisation systématique de mots s’avèrent bénéfiques pour l’apprentissage, les résultats des études ayant analysé l’utilisation des jeux numériques pour l’apprentissage intentionnel du vocabulaire ne font pas l’unanimité. Lors de l’utilisation de ces outils, les gains lexicaux des apprenants ne sont pas toujours significatifs, et, dans certains cas, les participants ne manifestent pas d’attitude positive envers leur utilisation. Pour mieux comprendre ces enjeux, nous avons effectué une recherche mixte visant à examiner le potentiel pédagogique d’un jeu numérique pour l’apprentissage du vocabulaire chez des élèves d’anglais langue seconde (ALS) du secondaire. Vingt-cinq étudiants ont utilisé le jeu numérique vocabulary.com pour apprendre 20 mots cibles. Au moyen des tests de vocabulaire, des questionnaires de perception, des observations, des traces numériques et des entrevues, nous avons étudié les gains lexicaux de participants, leur perception du jeu numérique ainsi que la façon dont ils l'ont utilisé. Les résultats ont montré que les gains lexicaux obtenus par les participants ont été significatifs. Bien qu’ils considéraient que le jeu numérique était surtout un outil d’apprentissage, ils trouvaient que cet outil avait contribué à l’apprentissage des nouveaux mots de vocabulaire. Finalement, grâce aux analyses effectuées à l’aide du cadre conceptuel de la Théorie de l’Activité, nous avons trouvé que des facteurs comme le niveau de complexité des questions, l’utilité perçue des mots proposés, le recours à des outils d’aide et la priorité donnée à la compétition ont affecté la façon dont chaque participant a utilisé le jeu numérique pour apprendre du vocabulaire."
Allain, Sébastien. „Serious game et perception du réel : lecture documentarisante et potentiel cognitif“. Phd thesis, Université de Grenoble, 2013. http://tel.archives-ouvertes.fr/tel-00917149.
Der volle Inhalt der QuelleNekkar, François. „L'action ludique dans les pratiques d'enseignement ? : le cas de la description d'images en cours de français au collège“. Thesis, Aix-Marseille, 2018. http://www.theses.fr/2018AIXM0446.
Der volle Inhalt der QuellePlay has always been part of the education of the child, and although play and learning activities have far-reaching aims (pleasure for one, knowledge for the other), we show possibilities for a school learning activity to be playful. To do this, our methodology, based on the didactic joint action concept, put in perspective the learning during the game : a pupil of 5th class describes a hidden image to the other pupils who draw it to guess it ; that is the goal of the game and the purpose of teaching-learning. Starting from this double play / learning issue, we model some conditions of possibilities for a teaching-learning knowledge activity to be playful, which abounds in the sense of a potential space of development-learning of the game in school context
Zou, Hang. „Goal oriented communications : the quantization problem“. Electronic Thesis or Diss., université Paris-Saclay, 2022. http://www.theses.fr/2022UPASG021.
Der volle Inhalt der QuelleThe classic paradigm for designing a transmitter (encoder) and a receiver (decoder) is to design these elements by ensuring that the information reconstructed by the receiver is sufficiently close to the information that the transmitter has formatted to send it on the communication medium. This is referred to as a criterion of fidelity or of reconstruction quality (measured for example in terms of distortion, binary error rate, packet error rate or communication cut-off probability).The problem with the classic paradigm is that it can lead to an unjustified investment in terms of communication resources (oversizing of the data storage space, very high speed and expensive communication medium, very fast components, etc.) and even to make exchanges more vulnerable to attacks. The reason for this is that the use of the classic approach (based on the criterion of fidelity of information) in the wireless networks will typically lead to exchanges excessively rich in information, too rich regarding the decision which will have to be taken. the recipient of the information; in the simpler case, this decision may even be binary, indicating that in theory a single bit of information could be sufficient. As it turns out, the engineer does not currently have at his disposal a methodology to design such a transceiver pair that would be suitable for the intended use (or uses) of the recipient.Therefore, a new communication paradigm named the goal-oriented communication is proposed to solve the problem of classic communications. The ultimate objective of goal-oriented communications is to achieve some tasks or goals instead of improving the accuracy of reconstructed signal merely. Tasks are generally characterized by some utility functions or cost functions to be optimized.In the present thesis, we focus on the quantization problem of the goal-oriented communication, i.e., the goal-oriented quantization. We first formulate the goal-oriented quantization problem formally. Secondly, we propose an approach to solve the problem when only realizations of utility function are available. A special scenario with some extra knowledge about regularity properties of the utility functions is treated as well. Thirdly, we extend the high-resolution quantization theory to our goal-oriented quantization problem and propose implementable schemes to design a goal-oriented quantizer. Fourthly, the goal-oriented quantification problem is developed in a framework of games in strategic form. It is shown that goal-oriented quantization could improve the overall performance of the system if the famous Braess paradox exists. Finally, Nash equilibrium of a multi-user multiple-input and multiple output multiple access channel game with energy efficiency being the utility is studied and achieved in different methods
Rodier, Lise. „Existence et calcul distribué d'équilibres dans des jeux de congestion généralisés“. Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLV049/document.
Der volle Inhalt der QuelleThis thesis focuses on potential games and a generalized load balancing game in a graph we called placement game.In this game, the cost of a player is affected by its neighbors.We can illustrate this with an example: the placement of players on a train, where the presence of direct neighbors affects their well-being.The results of this thesis are divided into two parts.First, we study these games considering the existence and structural properties of equilibria.We ask ourselves the fundamental question of whether there are Nash equilibria in the placement game.If this is the case we aim to determine if they are easily calculable, if there is no such equilibria we prove the NP-completeness of the problem.Secondly we focus on the concept of distributed algorithms to compute Nash equilibria in placement games.In particular we consider a game based on the Max-Cut problem, which has been more frequently studied.This allowed us to expand our work to a mobile network application for managing interference in wireless networks.We were able, for those different games, to implement distributed algorithms to compute equilibria and study their convergence.Meanwhile, we have expanded the Max-Cut works with a selection of QoS offers problem from various network providers.We compare the performance of distributed algorithms and regret minimization
Beaude, Olivier. „Modélisation et optimisation de l'interaction entre véhicules électriques et réseaux d'électricité : apport de la théorie des jeux“. Thesis, Université Paris-Saclay (ComUE), 2015. http://www.theses.fr/2015SACLS131/document.
Der volle Inhalt der QuelleThis thesis studies the technical and economical interaction between electric vehicles and electrical networks. The recent development of electric mobility leads to the analysis of potential impacts of electric vehicle charging on the electrical networks, but also to the possible support that these particular electric consumers could provide in the future smart grids. In this direction, most of the results given in this thesis also apply to a washing machine, a water-heater, a TV, as soon as these equipments are capable of being smart! When the decisions of flexible electric consumers interact, the considered framework naturally offers a unique exercise area for the tools of game-theory. The interpretation is straightforward when the considered problem is strategic by definition, but these tools allow also shedding light on other aspects: algorithmic coordination, information exchange, etc. The description of the benefits of using game-theory in this context is the aim of this work. This is done according to three aspects. In these three directions, a particular attention is drawn to the case of rectangular charging profiles, which are very practical, but often ignored by the literature. First, algorithmic issues arise when coordinating the charging of electric vehicles in a same area of the electrical network. A charging algorithm is proposed and analyzed. This is done by studying an underlying auxiliary game. This game is proved to belong to the class of potential games under very general physical and economic assumptions. In turn, it inherits from the strong properties of this class of games, namely convergence and an efficiency result in the case of a large number of electric vehicles. Considering information exchange, a model is proposed to design a good communication scheme between an operator of the electrical system and an electric vehicle. Both agents have an interest in exchanging information to schedule optimally the charging profile of the electric vehicle but they do not share the same objective. This framework is closely related to Cheap-talk in game theory and to quantization in signal processing. Amongst others, this work explains interesting connections between both topics. Furthermore, a method, which is used offline, is given to obtain a good communication mechanism between both agents. Finally, game theory is used in its traditional form, studying the strategic interaction when groups of a large number of electric vehicles – seen as fleets – coexist with individual vehicles. This allows the application of the very recent concept of composite games. In the three parts of the work, simulations are conducted in a French realistic distribution network, which could be the first part of the electrical system severely impacted by a non-coordinated charging. This highlights the robustness of rectangular charging profiles against forecasting errors on the parameters of the models
Boudard, Mélanie. „Prédiction de structure tridimensionnelle de molécules d’ARN par minimisation de regret“. Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLV026/document.
Der volle Inhalt der QuelleThe functions of RNA molecules in cellular processes are related very closely to its three dimensional structure. It is thus essential to predict the structure for understanding RNA functions. This folding can be seen as a two-step process: the formation of a secondary structure and the formation of three-dimensional structure. This first step is the results of strong interactions between nucleotides, and the second one is obtain by the tertiary interactions. Predicting the secondary structure is well-known and results in numerous advances since thirty years. However, predicting the three-dimensional structure is a more difficult problem due to the high number of possibility. To overcome this problem, we decided to see the folding of the RNA structure as a game. The secondary structure of the RNA is represented as a graph: its corresponds to a coarse-grained modeling of this structure. This modeling allows us to fold the RNA molecule in a discrete space. Our hypothesis is to understand the 3D structure like an equilibrium in game theory. To find this equilibrium, we will use regret minimization algorithms. We also study different formalizations of the game, based on biological statistics. The objective of this work is to develop a method of RNA folding which will work on all types of secondary structures and results more accurate than current approaches. Our method, called GARN, reached the expected objectives and allowed us to deepen the interesting factors for coarse-grained structure prediction on molecules
Queste, Hélène. „Etude des processus attentionnels mis en jeu lors de l'exploration de scènes naturelles : enregistrement conjoint des mouvements oculaires et de l'activité EEG“. Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENS006/document.
Der volle Inhalt der QuelleIn everyday life, when we explored the word, we moved continually our eyes. We focus your gaze successively on different location of the visual field, in order to get the visual information. In this way, our eyes became stable on two or three different regions per second, during period called fixation. Between two fixations, we make fast movements of the eyes to move our gaze to another position; it was called saccade. Eye movements are closely linked to attention. What are the attentional processes involved during scene exploration? How factors related to the scene or the task modify the parameters of eye movements? How these changes evolve during the exploration? In the thesis, we proposed to jointly analyze eye movements and electroencephalographic (EEG) data to better understand attentional processes involved during the processing of the visual information acquired during the exploration of scenes. We focused on low and high level factors. Low level factors corresponded to the visual information included in the scene and high level factors corresponded to the instruction give to observers. In a first study, we considered high level factors by manipulating the instructions for observers. We chose four tasks: free-exploration, categorization, visual search and spatial organization. These tasks were chosen because they involved different visual information processing and can be classified by level of difficulty or attentional demands. In a second study, we focused on the visual search task and on the influence of a time constraint. Finally, in a third study, we considered low level factors by analyzing the influence of a distractor disturbing the free-exploration of scenes. For the two first experiments, we jointly recorded eye movements and EEG signals of a large number of observers. The joint analysis of EEG and eye movement data takes advantage of the two methods. Eye tracking allowed to access to eye movements parameters and therefore to the visual attention deployment. It allowed knowing when and where the regions of the scene were gazed at. EEG allowed to access to differences on attentional processes depending on the experimental condition, with a high temporal resolution. We found differences between tasks for evoked potentials elicited by the scene onset and by fixations along the exploration. Furthermore, we demonstrated a strong link between the global EEG activity observed over frontal regions and fixation durations but also markers of the solving of the task on evoked potentials elicited by fixations of interest. Therefore, joint analysis of EEG and eye movement data allowed to report different processes related to attentional demanding
Masoero, Marco. „On the long time behavior of potential MFG“. Thesis, Paris Sciences et Lettres (ComUE), 2019. http://www.theses.fr/2019PSLED057.
Der volle Inhalt der QuelleThe purpose of this thesis is to shed some light on the long time behavior of potential Mean Field Games (MFG), regardless of the convexity of the minimization problem associated. For finite dimensional Hamiltonian systems, problems of the same nature have been addressed through the so-called weak KAM theory. We transpose many results of this theory in the infinite dimensional context of potential MFG. First, we characterize through an ergodic approximation the limit value associated to time dependent MFG systems. We provide explicit examples where this value is strictly greater than the energy level of stationary solutions of the ergodic MFG system. This implies that optimal trajectories of time dependent MFG systems cannot converge to stationary configurations. Then, we prove the convergence of the minimization problem associated to time dependent MFGs to a solution of the critical Hamilton-Jacobi equation in the space of probability measures. In addition, we show a mean field limit for the ergodic constant associated with the corresponding finite dimensional Hamilton-Jacobi equation. In the last part we characterize the limit of the infinite horizon discounted minimization problem that we use for the ergodic approximation in the first part of the manuscript
Stevens, Andrew. „JeX : an implementation of a Java exception analysis framework to exploit potential optimisations“. Thesis, University of Sussex, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.395000.
Der volle Inhalt der QuelleRaymond, François. „Valeurs de l'objet d'art : variations et usages potentiels“. Master's thesis, Université Laval, 2015. http://hdl.handle.net/20.500.11794/26107.
Der volle Inhalt der QuelleSchachermayer, Walter. „How potential investments may change the optimal portfolio for the exponential utility“. SFB Adaptive Information Systems and Modelling in Economics and Management Science, WU Vienna University of Economics and Business, 2002. http://epub.wu.ac.at/444/1/document.pdf.
Der volle Inhalt der QuelleSeries: Working Papers SFB "Adaptive Information Systems and Modelling in Economics and Management Science"
Liu, Xin. „Liquid jet impingement heat transfer and its potential applications at extremely high heat fluxes“. Thesis, Massachusetts Institute of Technology, 1992. http://hdl.handle.net/1721.1/13066.
Der volle Inhalt der QuelleBoussaton, Octave. „Application de la théorie des jeux à l'optimisation du routage réseau - solutions algorithmiques“. Phd thesis, Université Henri Poincaré - Nancy I, 2010. http://tel.archives-ouvertes.fr/tel-00605791.
Der volle Inhalt der QuelleBlanchard, Nicolas. „Convection dans une bande transporteuse d'air chaud : caractérisation et impacts sur la dynamique d'altitude“. Thesis, Toulouse 3, 2020. http://www.theses.fr/2020TOU30229.
Der volle Inhalt der QuelleWarm air conveyor belts (WCB) are ascending air streams in mid-latitude storms. They transport warm and moist air from the tropics to the high latitudes and are the site of most cloud diabatic processes. These processes modify the upper-level dynamics by injecting negative potential vortex (PV) anomalies into the WCB outflow, which reinforce the waveguide governing the general circulation. Their representation is a source of forecast errors downstream, especially over Europe. While WCBs are predominantly considered as slow continuous slantwise ascents, recent studies have revealed the existence of fast convective ascents in WCBs whose impact on upper-level dynamics is still debated. The reduction of forecast uncertainties motivated the NAWDEX field campaign over the North Atlantic in autumn 2016. During the campaign, the ascent region and the outflow of the WCB of the Stalactite cyclone were observed by an airborne Doppler radar and dropsondes. These observations are reproduced by a convection-permitting simulation carried out with the Meso-NH model, thanks to which a novel analysis combining Eulerian and Lagrangian approaches made it possible to characterize the complexity of the ascents in the WCB. The WCB ascent region is first studied. Three types of convective ascents are found and occur in a coherent and organized manner rather than as isolated cells. Two are caused by shallow convection related to the dynamics of the cold front and that of a low level jet. The third is due to mid-level convection, located on the western edge of the WCB between the low-level jet and the upper jet stream. It is the latter that feeds the anticyclonic branch of the WCB. The outflow of the WCB and its mid-level convection feed are then studied. An additional simulation is carried out for which the heat exchanges resulting from the cloud processes are cut off in order to highlight their impact on the upper-level dynamics. The reference simulation shows that the mid-level convection diabatically creates horizontal PV dipoles whose pole oriented towards the jet stream reaches negative values. These PV dipoles are then advected by the large-scale dynamics and persist over time. Thus, elongated bands of negative PV are found in the WCB outflow ten hours later. Comparing the two simulations shows that these negative PV bands reinforce the horizontal PV gradient at the tropopause, locally accelerating the jet stream. The results of the thesis show the complexity of convection that can be found in a WCB. They suggest that mid-level convection impacts the altitude dynamics and that its misrepresentation in large-scale models could explain in part the forecast errors downstream
Cogneras, E. „Production de paires de Top et effet de Nouvelle Physique. Calibration des jets légers avec le processus W en jet-jet. Mesure de la masse du Top“. Phd thesis, Université Blaise Pascal - Clermont-Ferrand II, 2007. http://tel.archives-ouvertes.fr/tel-00178221.
Der volle Inhalt der QuelleNakamura, Mototaka. „Characteristics of potential vorticity mixing by breaking Rossby waves in the vicinity of a jet“. Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/11730.
Der volle Inhalt der QuelleIncludes bibliographical references (p. 248-253).
by Mototaka Nakamura.
Sc.D.
Mahboubi, Kambiz. „ATLAS level-1 jet trigger rates and study of the ATLAS discovery potential of the neutral MSSM Higgs bosons in b-jet decay channels“. [S.l. : s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=961739746.
Der volle Inhalt der QuelleWikberg, Lars. „Estimating win-win potential between supplier and customer : a model applied within civil jet engine maintenance“. Licentiate thesis, Luleå tekniska universitet, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-17651.
Der volle Inhalt der QuelleGodkänd; 2001; 20070313 (ysko)
Vaché, Isabelle. „L'émergence des politiques énergétiques en Pays de la Loire (France). Effets de contexte, potentiels et jeux d'acteurs“. Phd thesis, Université du Maine, 2009. http://tel.archives-ouvertes.fr/tel-00431585.
Der volle Inhalt der QuelleVaché, Isabelle. „L'émergence des politiques énergétiques en Pays de la Loire (France) : effets de contexte, potentiels et jeux d’acteurs“. Le Mans, 2009. http://cyberdoc.univ-lemans.fr/theses/2009/2009LEMA3007_1.pdf.
Der volle Inhalt der QuelleAs it deals with either global or local energy and climate issues, this thesis is a topical work. In the context of international climate talks, European and national and regional policies, it aims to analyse the local initiatives in the Pays de la Loire. This work focuses on three main assumptions. The first states that renewable energy has been developed in the Pays de la Loire in the wake of local nuclear projects. The second argues that human potentialities are more determining than the physical and geographical energy potentialities of a given territory, at least in this phase of regional awareness encouraged by public policies. The third shows that local pressures have led the Région Pays de la Loire to back the development of renewable energy. Our research focuses on a qualitative approach which is based on numerous interviews and linked to a quantitative approach relying on statistical and cartographic databases. The first part of our work is devoted to the context. It shows that despite the rallying of the scientific community since the 1970’s, awareness of climate change due to human activity is rather recent. Europe has played an important role in international climate talks and has set itself ambitious targets (such as energy-climate Package in 2007). However, if certain member States of the E. U. , such as Germany, have volunteered to reduce their greenhouse gases emissions and develop renewable energy, other countries like France have been much less incentive. The second and third parts of our work, focusing on the Région Pays de la Loire, highlight that despite real physical potentialities, renewable energy still represents a small part of the whole production. We have established that there is a link between physical potentialities and the number of green equipments. The regional energy policy is rather recent, and has been more favorable to renewable energy and energy saving since the regional political success of the French Green Party in 2004. The rise of associative movements has also played a role in the consideration of energy and climate issues by the Région Pays de la Loire. To organize our last part dealing with local policies, we have constructed a typology based on many interviews. It shows that human potentialities, more than physical ones, can determine the establishment of a local energy policy. The approach of the SyDEV (Syndicat Départemental d’Energie et d’Equipement de la Vendée) is something of an exception since it is initially linked to the willingness to exploit wind-power in order to keep a hand on local wind resources. We have shown that the grounds of local energy policies may diverge, but also result from negative external elements. We have also shown that links exist between anti-nuclear demonstrations and the strong energy policy led by the Pays de Haute Mayenne ; between the pressures exerted by Nantes as the main regional city and the original approach undertaken by the Pays de Grandlieu Machecoul et Logne ; also between the need for local development and the reflection led by the PNR Loire Anjou Touraine. These local energy initiatives sometimes take root in a long history (as in the Pays des Mauges, for example). In addition, our investigation shows movements of various kinds, be they individual or collective. We have also studied the origins of the sensitivity characterizing the pioneers of renewable energy. Finally, our interest in the biggest regional cities has helped us show the examplary nature of Nantes Métropole and the more opportunist approach proposed by the Pays du Mans. Therefore, we may assume that behind local innovations there are men and women as singular wills linked to a political party, to a legacy of environmental or social movements, and to other types of convictions
Berger, Ulrich. „Two More Classes of Games with the Continuous-Time Fictitious Play Property“. Elsevier, 2007. http://epub.wu.ac.at/5587/1/2007_GEB.pdf.
Der volle Inhalt der QuelleMohan, Karuniya. „Ensemble Modelling of in situ Feature Variables for Printed Electronics Manufacturing with in situ Process Control Potential“. Thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/84947.
Der volle Inhalt der QuelleMaster of Science
Madougou, Saïdou. „Étude du potentiel éolien du jet nocturne dans la zone sahélienne à partir des observations de radars profileurs de vent“. Phd thesis, Université Paul Sabatier - Toulouse III, 2010. http://tel.archives-ouvertes.fr/tel-00530163.
Der volle Inhalt der QuelleMadougou, Saïdou. „Etude du potentiel éolien du jet nocturne dans la zone sahélienne à partir des observations de radars profileurs de vent“. Toulouse 3, 2010. http://thesesups.ups-tlse.fr/959/.
Der volle Inhalt der QuelleThis work presents a large study of the wind characteristics and the diurnal and seasonal wind variations obtained from the data of two wind profiler radars installed at Bamako in 2005 and at Niamey in 2006. The nocturnal low level jet peaked at 14 m s-1 at 500 m. It was still obvious at 150 m. Important wind shears were also shown, together with the impacts on aircraft activity. The wind pattern was marked by a strong diurnal cycle as well as a strong seasonal cycle. A wind assessment was made by two methods. The first involved the wind distributions directly observed. The second was based on the Weibull distributions. Day and night were compared. Results showed that the nocturnal low level jet was an interesting source of energy provided that wind turbines were 150 m high and huge-capacity energy storage was used, so that the energy stored at night could be restored during the daytime, when the demand is highest. Harmattan period is most propitious with an output power exceeding 300 W m-2 due to the nocturnal jet. The economic study results showed that this energy was found to be cheap relative to other renewable energy sources
Ames, Jacob L. (Jacob Lee). „Microalgae-derived HEFA jet fuel : environmental and economic impacts of scaled/integrated growth facilities and global production potential“. Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/97363.
Der volle Inhalt der QuelleCataloged from PDF version of thesis. "February 2015."
Includes bibliographical references (pages 71-74).
Biofuels have the potential to mitigate the environmental impact of aviation and offer increased energy security through the displacement of conventional jet fuel. This study investigates strategies designed to reduce the production cost and lifecycle greenhouse gas (GHG) emissions of microalgae-derived HEFA jet fuel. Additionally, the global production potential of HEFA-J is quantified in order to assess the efficacy of microalgae as an energy crop. Impacts from the integration/scaling of microalgae cultivation were quantified by calculating avoided costs and GHG emissions from inputs displaced as a result of integration/scaling. Avoided costs and emissions associated with each impacted input were calculated in units of $/galHEFA-J and gCO₂e/MJHEFA-J, respectively. Results were summed to produce total impact values and resulting production cost/lifecycle emissions values of HEFA-J for each strategy investigated. Baseline results indicate that integration with wastewater treatment (WWT) facilities may reduce production cost and lifecycle GHG emissions of HEFA-J by 29.2% and >100%, respectively, in open pond systems. Integration with aquaculture processes may reduce production cost by 10.4% in open ponds. Scaling microalgae cultivation from 137 to 2192 barrels per day (BPD) results in a 22.7% reduction in production cost and a 32.0% reduction in lifecycle GHG emissions in open pond systems. Combining scaling and WWT integration methods in open ponds yields a 52.0% reduction in production cost and >100% lifecycle GHG emissions reduction. Global production potential of microalgae-derived HEFA-J is quantified through the summation of annual energy yields of cells at a 5 arc minute resolution. Results are constrained by geographically variable biological growth factors in addition to water/CO₂ transportation constraints, land availability and slope, and industrial CO₂ availability. Maximum jet and maximum distillate product slates were applied to total energy potential results to quantify global production potential of HEFA-J. Baseline results indicate that 27.5 EJHEFA-J/yr may be produced, or approximately 3 times the annual global aviation energy demand.
by Jacob L. Ames.
S.M.
Stewart, Helena K. „Peat's secret archive : interpreting the geochemical and palaeodust record from Scottish peat as a potential index of North Atlantic storminess and Holocene climate change“. Thesis, University of Stirling, 2016. http://hdl.handle.net/1893/24811.
Der volle Inhalt der QuelleGatete, Charly Djerma. „Perceptions et jeu d’acteurs dans la construction de l’action publique et des modes de gouvernance dans la filière agrocarburant et effets structurants potentiels sur le développement au Burkina Faso“. Thesis, Paris 11, 2015. http://www.theses.fr/2015PA111003.
Der volle Inhalt der QuelleBiofuels have renewed a strong development since 2000 in West Africa countries without a clear and shared vision by all stakeholders. However, the strategies and interactions between public and private actors are important in the construction of these biofuels sector and policies. The purpose of this thesis is to analyze public action described as "all relations [stakeholder's interplay] more or less institutionalized, practices and representations that contribute to the production and regulation of social relations" in the development of biofuels in Burkina Faso. It analyzes the influence of stakeholder's interplay in the emergence and structuring of several biofuels sectors and policy development. This thesis has also sought to analyze the influence of actors perceptions and interactions in the construction of institutional arrangements and sector governance. Finally, from a multi-criteria analysis based on the actors perceptions on potential structuring effects of biofuels in Burkina Faso development, it was highlighted the influence of these perceptions in explaining the current institutional landscape
Steiner, Martin. „Současný stav a budoucnost nekonvenční technologie vodního paprsku v podmínkách průmyslu České republiky“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228103.
Der volle Inhalt der QuelleCastella, Martine. „Photophysique de complexes de molécules aromatiques formés en jet supersonique : spectroscopie electronique et calcul des surfaces d'énergie potentielle“. Paris 11, 1987. http://www.theses.fr/1987PA112503.
Der volle Inhalt der QuelleLacaille, Isabelle. „Design of an atmospheric pressure non-thermal miniature plasma jet and exploration of its potential as a treatment for cutaneous leishmaniasis“. Thesis, McGill University, 2014. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=121315.
Der volle Inhalt der QuelleAu cours des dernières années, le domaine des applications biomédicales des plasmas non-thermiques a connu une croissance exponentielle. Plusieurs de ces applications dépendent de la production du monoxyde d'azote (NO) et des espèces réactives à base d'oxygène (ROS) à l'intérieur des plasmas. Ces espèces réactives ont une activité biologique, et elles ont des rôles importants et diversifiés dans de nombreux types de cellules et tissues humains. Une application potentielle des plasmas non-thermiques qui à date n'a pas encore été exploré en profondeur est le traitement de la leishmaniose cutané. La leishmaniose est une maladie négligée bien que très rependue mondialement dans les régions tropicales et subtropicales. Elle est causée par un parasite appartenant au genre Leishmania. A l'intérieur de la peau humaine, les espèces de Leishmania infiltrent les macrophages, des cellules qui normalement tuent les parasites et d'autres agents infectieux en produisant des quantités cytotoxiques de NO et des ROS. Leur survie dans ce milieu est possible grâce à leur capacité d'inhiber le fonctionnement normal des macrophages, y compris d'empêcher la production du NO et des ROS. Par conséquent, l'application d'un plasma non-thermique au site de l'infection pourrait aider à traiter la leishmaniose cutanée. L'objectif de cette thèse est d'étudier cette possibilité.À cette fin, une source à jet de plasma non-thermique miniature opérant à atmosphérique, l'APGD-j, a été fabriquée et utilisée pour effectuer des expériences in vitro et in vivo. La production du NO et des ROS par l'APGD-j a été confirmée avec le spectre d'émission de la décharge électrique. Une caractérisation préliminaire des milieux in vitro a aussi confirmé le transfert du NO à l'intérieur du milieu extracellulaire. Une lignée de macrophages dérivés de la moelle osseuse murine nommé B10R a été utilisée pour effectuer des études sur l'effet des traitements de plasma sur la signalisation et le fonctionnement cellulaire des macrophages. Le traitement direct ainsi que le traitement indirect des cellules avec une solution de milieu cellulaire traité par l'APGD-j induit la phosphorylation du p38, et le traitement direct induit aussi la phosphorylation du JNK. Ces deux molécules sont des protéines kinases activées pas les mitogènes (MAPK), des protéines de signalisation qui sont désactivés suivant une infection à la leishmaniose. De plus, le traitement indirect des B10R induit la translocation de la protéine activatrice 1 (AP-1), un facteur de transcription en aval des MAPKs, vers l'intérieur du noyau. Ceci confirme l'activation de la cascade de signalisation associé au MAPK. L'expression des gènes associés aux fonctions immunitaires du macrophage a été évaluée. Des 89 gènes testés, 23 gènes ont été modulé par l'APGD-j. Le changement le plus important a été l'expression de Interleukine-1B (IL-1B), dont l'expression a augmenté 27 fois. Ce dernier résultat suggère que le traitement APGD-j a un effet pro-inflammatoire sur les macrophages. Le traitement de la lignée de promastigote Lm-LUC provenant de l'espèce L. major a entraîné une rupture de la membrane cellulaire ainsi qu'une perte de l'activité métabolique pour une fraction de la population, ce qui démontre les effets toxiques du traitement. Enfin, des lésions cutanées sur les peaux des souris BALB/c causées par l'administration des parasites de la lignée Lm-LUC ont été traitées avec l'APGD-j. Malgré que le nombre de parasites à l'intérieur du tissue n'a pas été affecté, le niveau d'ulcération des lésions a été réduit de façon significative. Ensemble, ces résultats suggèrent que même s'il y a encore du travail à faire en ce qui concerne l'optimisation de l'APGD-j pour cette application, les générations futures de l'appareil pourraient être utilisées pour minimiser les cicatrices et réduire le temps de récupération des lésions.
Belisario-Lara, Daniel E. „Pyrolysis of Jet Propellants and Oxidation of Polycyclic Aromatic Radicals with Molecular Oxygen: Theoretical Study of Potential Energy Surfaces, Mechanisms, and Kinetics“. FIU Digital Commons, 2018. https://digitalcommons.fiu.edu/etd/3819.
Der volle Inhalt der QuelleGoparaju, Kalyan. „Flow and Acoustic Characteristics of Complex Supersonic Jets“. The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1510933315034965.
Der volle Inhalt der QuelleUnnikrishnan, Divya. „Potentiel de la technologie MID pour les composants passifs et des antennes“. Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GRENT009/document.
Der volle Inhalt der QuelleMID (Molded Interconnect Devices) technology, owing to their electrical performance,flexibility in RF circuits, its potential to reduce the number of components, process steps andminiaturization of the final product, has led to some new constraints to the RF (RadioFrequency) and microwave domain. Molded components are interconnected withthermoplastic substrates and conductive traces are injected on the surface. The objective ofthis thesis is to study the compatibility of MIDs for RF applications. The advantages of MIDtechnology in the RF domain is exploited for transmission lines, passive filters, directionalcouplers and planar and 3D antennas realization. The RF characterization of various MIDsubstrate materials and the study of the performance of the above RF components based onvarious MID fabrication technologies are included in the thesis. Finally, an permittivityimprovement study of some thermoplastics are also studied
Bocklitz, Sebastian. „Conformational spectroscopy of flexible chain molecules near the folding limit“. Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2017. http://hdl.handle.net/11858/00-1735-0000-002E-E35F-A.
Der volle Inhalt der QuelleAl, Ayoub Yuosef. „Development of a Dry Powder Inhaler and Nebulised Nanoparticle-Based Formulations of Curcuminoids for the Potential Treatment of Lung Cancer. Development of Drug Delivery Formulations of Curcuminoids to the Lungs using Air Jet Milling and Sonocrystallisation Techniques for Dry Powder Inhaler Preparations; and Nanoemulsion and Microsuspension for Nebuliser Formulations“. Thesis, University of Bradford, 2017. http://hdl.handle.net/10454/15324.
Der volle Inhalt der QuelleCarrière, Nicolas. „Troubles du contrôle des impulsions au cours de la maladie de Parkinson, étude électro-encéphalographique de l’intégration de la récompense et modifications de la connectivité fonctionnelle cérébrale de repos en imagerie par résonance magnétique“. Thesis, Lille 2, 2015. http://www.theses.fr/2015LIL2S060/document.
Der volle Inhalt der QuelleBackgroundIn Parkinson’s disease, dopamine agonists are associated with an increased risk of impulse control disorders (ICD). Their occurrence is supposed to be related with a deregulation of the dopaminergic meso-limbic pathway, involved in the processing of the consequences of previous action to adapt future behaviors. Dopamine agonists, through a tonic stimulation of the dopamine receptors would lead to an overestimation of the positive consequences of actions, and therefore, continuation of a harmful behavior.Method:We investigated (i) the resting-state striato-cortical functional connectivity using functional MRI, and (ii) electro-encephalographic (EEG) markers of feedback processing during a gambling task : the feedback related negativity (FRN), the feedback related positivity, (FRP), and the theta band oscillations (4-7 Hz) in 20 Parkinson’s disease patients with an active ICD, 19 Parkinson’s disease patients without ICD, and 19 healthy subjects.Functional MRI: The ventral striatum, dorsal caudate, and anterior and posterior putamen were semi-automatically segmented. For each region of interest, a seed-based connectivity analysis was performed on preprocessed fMRI data mapped on the ipsilateral cortical surface.Neurophysiological approach: The subjects underwent an EEG while performing a gambling task. The EEG was averaged for each condition and each subject. The FRP amplitude was measured in Cz, and the FRN amplitude was measured in Fz on the difference wave between the potential evoked by losses and by gains. The power spectra were computed by using a sinusoidal Morlet wavelet transform and averaged by condition. The maximum power in the theta frequency band was computed for each participant and each condition.Results:Cortico-striatal connectivity analysis: The presence of an ICD in patients with PD was associated with functional disconnection between the left anterior putamen and both the left inferior temporal and anterior cingulate gyrus. ICD patients also displayed a trend toward a functional disconnection between (i) the left anterior putamen and the inferior frontal gyrus, (ii) the posterior putamen and the inferior temporal gyrus, superior frontal gyrus, posterior cingulate, and medial frontal gyrus on the left, as well as the medial frontal gyrus, middle frontal gyrus, and cingulate gyrus on the right, (iii) the dorsal caudate and the gyrus rectus and orbitofrontal cortex, and the middle frontal and inferior temporal gyrus on the left.Evoked potentials: In Parkinson’s disease patients without ICD and healthy controls, the FRP was greater after gains that after losses following a non-risky choice. There was no difference in FRP amplitude after losses and gains in Parkinson’s disease patients with ICD.Time-frequency analysis: At Cz, positive outcomes (gains) were associated with greater theta power than negative outcomes (losses) in Parkinson’s disease patients without ICD and in healthy controls, but not in Parkinson’s disease patients with ICD. There was an increase in theta power after unexpectedly high outcomes, at Fz in healthy controls and in FCz in Parkinson’s disease patients with ICD, whereas theta power was not modulated by the magnitude of the outcome in PD patients without ICDs.Conclusions:Parkinson’s disease patients with ICD have an alteration in EEG markers of reward in line with an altered discrimination of gains and losses and a greater sensitivity to unexpectedly high outcomes, supposed to lead to a significant activation in the dopaminergic meso-limbic pathways. These findings are in line with a dysfunction in reward processing in ICD in Parkinson’s disease. This dysfunction is associated, at rest, with an alteration in striato-cortical connectivity that goes beyond a pure dopaminergic meso-limbic dysfunction
Hamamda, Mehdi. „Perspectives nouvelles pour l'optique atomique en jets : Interaction de van der Waals-Zeeman et milieux d'indice négatif pour les ondes de matière“. Phd thesis, Université Paris-Nord - Paris XIII, 2011. http://tel.archives-ouvertes.fr/tel-00632807.
Der volle Inhalt der QuelleJanbakhsh, Setareh. „A Ventilation Strategy Based on Confluent Jets : An Experimental and Numerical Study“. Doctoral thesis, Linköpings universitet, Energisystem, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-117442.
Der volle Inhalt der QuelleNGUYEN-THI, Van-Oanh. „SPECTROSCOPIE ET STABILITE DES HYDROCARBURES AROMATIQUES POLYCYCLIQUES DANS LES CONDITIONS DU MILIEU INTERSTELLAIRE“. Phd thesis, Université Paris Sud - Paris XI, 2003. http://tel.archives-ouvertes.fr/tel-00005244.
Der volle Inhalt der QuelleNordmeyer, Dana L. „Effects of jet aircraft overflights and other potential disturbances on behavioral responses and productivity of nesting peregrine falcons“. Thesis, 1999. http://hdl.handle.net/1957/33637.
Der volle Inhalt der QuelleGraduation date: 1999
Mahboubi, Kambiz [Verfasser]. „ATLAS level-1 jet trigger rates and study of the ATLAS discovery potential of the neutral MSSM Higgs bosons in b-jet decay channels / presented by Kambiz Mahboubi“. 2001. http://d-nb.info/961739746/34.
Der volle Inhalt der QuelleUpadhyaya, Bhaskar. „Potential Of Live Recombinant 'Bakers Yeast' As Antigen Delivery Vectors : Application In Generating Antibodies To GFP And Envelope Protein Of JEV“. Thesis, 2005. https://etd.iisc.ac.in/handle/2005/1372.
Der volle Inhalt der QuelleUpadhyaya, Bhaskar. „Potential Of Live Recombinant 'Bakers Yeast' As Antigen Delivery Vectors : Application In Generating Antibodies To GFP And Envelope Protein Of JEV“. Thesis, 2005. http://etd.iisc.ernet.in/handle/2005/1372.
Der volle Inhalt der QuelleRibeiro, Vinícius Tolentino. „Analyzing the potential of composite challenges in movement interaction to support children with attention-deficit, hyperactivity disorder (ADHD) : a case study in Morelia, Mexico“. Master's thesis, 2014. http://hdl.handle.net/10400.5/14001.
Der volle Inhalt der QuelleEste estudo explorou o potencial de desafios que contem aspectos cognitivos e físicos, através da comparação de versões de um de um protótipo de um jogo sério, com diferentes níveis desses aspectos, para promover estados de fluxo para apoiar programas educacionais para crianças com transtorno do déficit de atenção com hiperatividade (TDAH). O estudo compreendeu a adaptação do protótipo, assim como uma investigação empírica que avaliou o potencial dos desafios cognitivo-físicos. A adaptação do protótipo foi uma atividade de desenvolvimento de software que consistiu na realização de um desenvolvimento incremental sobre um existente sistema baseado no Kinect. A investigação empírica foi realizada como um estudo de caso em duas escolas do ensino fundamental em Morelia, México, e envolveu uma amostra de 25 crianças em idade escolar, de 6 a 11 anos e com sintomas de TDAH. A investigação empírica envolveu duas fases: um Teste Piloto, para refinar o protótipo e validar os instrumentos de investigação, e uma Avaliação da Experiência do Usuário, para comparar os desafios cognitivo-físicos em função do seu grau de equilíbrio. Os resultados do estudo sugerem que o nível de conhecimento e habilidades em videogames influem na forma como as crianças percebem suas próprias habilidades e frustrações. A experiência de fluxo foi determinada por diferenças individuais na preferência por situações; a maioria das crianças teve problemas com lateralidade, assim como de coordenação motora, o que influenciou negativamente sobre os desafios cognitivos do jogo. Além disso, as atividades equilibradas pareceram ser mais propensas a promover fluxo. No entanto, a noção de equilíbrio não é absoluta, mas depende das características e capacidades de cada pessoa: alguém poderia perceber uma atividade como equilibrada enquanto que outra pessoa poderia perceber a mesma atividade como desequilibrada.
Este estudio ha explorado el potencial de retos que contienen aspectos cognitivos y físicos, mediante la comparación de versiones de un prototipo de juego serio con diferentes proporciones de estos aspectos, para promover estados de flujo para apoyar programas educativos para niños con trastorno por déficit de atención por hiperactividad (TDAH). El estudio comprendió la adaptación del prototipo, así como una investigación empírica que evalúo el potencial de los retos cognitivo-físicos. La adaptación del prototipo fue una tarea de desarrollo de software que consistió en la realización de un desarrollo incremental sobre un existente sistema basado en el Kinect. La investigación empírica se realizó como un estudio de caso en dos escuelas primarias en Morelia, México, e involucró a una muestra de 25 niños en edad escolar, de 6 a 11 años y con síntomas de TDAH. La investigación empírica constó de dos fases: una Prueba Piloto, para refinar el prototipo y validar los instrumentos de investigación, y una Evaluación de la Experiencia de Usuario, para comparar los retos cognitivo-físicos en función de su grado de equilibrio. Los resultados del estudio sugieren que el nivel de conocimientos y habilidades en los videos juegos influyen en la forma en que los niños perciben sus propias capacidades y frustraciones. La experiencia de flujo fue determinada por las diferencias individuales en la preferencia por situaciones; la mayoría de los niños tenían problemas de lateralidad, así como de coordinación motora, los cuales tuvieran una influencia negativa sobre los retos cognitivos del juego. Además, las actividades equilibradas parecieran más propensas a promover el flujo. Sin embargo, la noción de equilibrio no es absoluta, sino que depende de las características y capacidades de cada persona: alguien podría percibir una actividad como equilibrada mientras que alguien más podría percibir la misma actividad como desequilibrada.
Cette étude a exploré le potentiel de défis comprenant les aspects cognitifs et physiques, en comparant les versions d'un prototype de jeu sérieux avec différents degrés de ces aspects, afin de favoriser les états de l'attention renforcée pour soutenir les programmes éducatifs destinés aux enfants atteints d'un trouble du déficit de l’attention avec hyperactivité (TDAH). L'étude a compris l'adaptation du prototype ainsi que d'une recherche empirique qui a évalué le potentiel de difficultés cognitives et physiques. L'adaptation du prototype a été une tâche de développement de logiciels pour effectuer un développement incrémental sur un système existante basé sur Kinect. La recherche empirique a été réalisée comme une étude de cas, ayant eu lieu dans deux écoles primaires à Morelia, au Mexique, et a été faite auprès d’un échantillon de 25 enfants d'âge scolaire, de 6 à 11 ans et présentant des symptômes de TDAH. La recherche empirique comprenait deux phases : en premier temps un Essai Pilote, pour affiner le prototype et pour valider les instruments de recherche, en deuxième temps une Évaluation de l’Expérience de l’Utilisateur, pour comparer les défis cognitives et physiques en fonction de leur degré d'équilibre. Les résultats de cette étude suggèrent que le niveau de connaissances et de compétences dans les jeux vidéo influencent la façon dont les enfants percevaient leurs propres capacités et leurs frustrations. L’expérience de flux a été déterminée par les différences individuelles dans la préférence pour les situations. La plupart des enfants ont eu des problèmes avec la latéralité, ainsi qu’une coordination motrice ayant une influence négative sur les défis cognitifs du jeu. De plus, les activités équilibrées semblaient être plus susceptibles de favoriser le flux. Cependant, la notion d'équilibre n'est pas absolue, car elle dépend des caractéristiques et des capacités des individus : certains pourraient percevoir une activité équilibrée, alors que d'autres pourraient percevoir la même activité comme déséquilibrée.
Гладишева, Тамара Володимирівна. „Підвищення потужності міні ГЕС на річці Боржава“. Магістерська робота, 2020. https://dspace.znu.edu.ua/jspui/handle/12345/3328.
Der volle Inhalt der QuelleUA : Робота викладена на 93 сторінках друкованого тексту, містить 12 таблиць, 15 рисунків. Перелік посилань включає 55 джерел, з них на іноземній мові - 3. Об'єктом дослідження- берегові та безгребельні електростанції; їх структура, особливості, переваги та недоліки у порівнянні з іншими ЕС. Предмет дослідження –залежність критеріїв ефективності роботи ЕС від різних режимів вироблення електроенергії на прикладі берегових та безгребельних станцій.У роботі розглядаються методи визначення гідропотенціалу малих річок України, зокрема Українських Карпат. На підставі знайденої інформації було проведено аналіз, який спростив пошук місця для проектування ГЕС. Запропоновано проект створення міні-ГЕС на річці Боржава (Закарпатська обл.) без бар'єру течії річки з мінімальним впливом на навколишнє середовище.Будівництво безгребельної станції позбавляє від необхідності будівництва вхідного каналу, що є основною частиною робіт з будівництва станції. Розрахунки гідроенергетичних потужностей проводилися на основі наявних даних з урахуванням змін у стандартній конструкції гідроелектростанцій на основі реактивної турбіни. Конструкція передбачає обслуговування та контроль станції в автоматичному режимі.
EN : The work is presented on 93 pages of printed text, contains 12 tables, 15 figures. The list of references includes 55 sources, of which in a foreign language - 3. The object of study - coastal and damless power plants; their structure, features, advantages and disadvantages in comparison with other EC. The subject of research - the dependence of the criteria of efficiency of the EC on different modes of electricity generation on the example of shore and dam stations.The paper considers methods for determining the hydro potential of small rivers of Ukraine, in particular the Ukrainian Carpathians. Based on the information found, an analysis was conducted, which simplified the search for a place to design a hydroelectric power plant. A project to create a mini hydroelectric power plant on the Borzhava River (Zakarpattia region) without a barrier to the river flow with minimal impact on the environment has been proposed. The construction of a dam station eliminates the need to build an inlet channel, which is the main part of the construction of the station. Calculations of hydropower capacity were performed on the basis of available data, taking into account changes in the standard design of hydropower plants based on a jet turbine. The design provides maintenance and control of the station in automatic mode. Drawings and materials selected for the construction of hydropower plants on the Borzhava River have been developed.
Müller, Christian. „Zeitaufgelöste Fluoreszenzspektroskopie unimolekularer Reaktionen im Überschalldüsenstrahl: trans-cis-Photoisomerisierung, Phenylringtorsion, intramolekularer Wasserstoffatomtransfer“. Doctoral thesis, 2005. http://hdl.handle.net/11858/00-1735-0000-0006-B0C2-1.
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