Ce travail présente deux nouveaux systèmes simples d'analyse de la marche humaine grâce à une caméra de profondeur (Microsoft Kinect) placée devant un sujet marchant sur un tapis roulant conventionnel, capables de détecter une marche saine et celle déficiente. Le premier système repose sur le fait qu'une marche normale présente typiquement un signal de profondeur lisse au niveau de chaque pixel avec moins de hautes fréquences, ce qui permet d'estimer une carte indiquant l'emplacement et l'amplitude de l'énergie de haute fréquence (HFSE). Le second système analyse les parties du corps qui ont un motif de mouvement irrégulier, en termes de périodicité, lors de la marche. Nous supposons que la marche d'un sujet sain présente partout dans le corps, pendant les cycles de marche, un signal de profondeur avec un motif périodique sans bruit. Nous estimons, à partir de la séquence vidéo de chaque sujet, une carte montrant les zones d'irrégularités de la marche (également appelées énergie de bruit apériodique). La carte avec HFSE ou celle visualisant l'énergie de bruit apériodique peut être utilisée comme un bon indicateur d'une éventuelle pathologie, dans un outil de diagnostic précoce, rapide et fiable, ou permettre de fournir des informations sur la présence et l'étendue de la maladie ou des problèmes (orthopédiques, musculaires ou neurologiques) du patient. Même si les cartes obtenues sont informatives et très discriminantes pour une classification visuelle directe, même pour un non-spécialiste, les systèmes proposés permettent de détecter automatiquement les individus en bonne santé et ceux avec des problèmes locomoteurs. / This work presents two new and simple human gait analysis systems based on a depth camera (Microsoft Kinect) placed in front of a subject walking on a conventional treadmill, capable of detecting a healthy gait from an impaired one. The first system presented relies on the fact that a normal walk typically exhibits a smooth motion (depth) signal, at each pixel with less high-frequency spectral energy content than an abnormal walk. This permits to estimate a map for that subject, showing the location and the amplitude of the high-frequency spectral energy (HFSE). The second system analyses the patient's body parts that have an irregular movement pattern, in terms of periodicity, during walking. Herein we assume that the gait of a healthy subject exhibits anywhere in the human body, during the walking cycles, a depth signal with a periodic pattern without noise. From each subject’s video sequence, we estimate a saliency color map showing the areas of strong gait irregularities also called aperiodic noise energy. Either the HFSE or aperiodic noise energy shown in the map can be used as a good indicator of possible pathology in an early, fast and reliable diagnostic tool or to provide information about the presence and extent of disease or (orthopedic, muscular or neurological) patient's problems. Even if the maps obtained are informative and highly discriminant for a direct visual classification, even for a non-specialist, the proposed systems allow us to automatically detect maps representing healthy individuals and those representing individuals with locomotor problems.

Les Partenariats Publics Privés (PPPs) peuvent être un outil efficace pour optimiser et moderniser la commande publique dans un contexte où les besoins en investissement public ne cessent d’accroître. Les fréquences importantes de renégociation et les difficultés à estimer correctement les revenus futurs demeurent un défi majeur lors de la structuration financière des PPPs. Ce travail propose d’incorporer des clauses financières flexibles afin de remédier à ce problème. L’approche développée se base sur les théories d’options réelles et d’optimisation multi-objectif. Dans un premier temps, une méthodologie adéquate pour la gestion des risques est développée. La volatilité du projet est déterminée par le biais de la simulation de Monte Carlo et un déflateur stochastique est introduit afin de conduire les différentes valorisations d’options sous la probabilité historique. Ce travail développe dans un second temps, quatre formes de flexibilité qui permettent de réajuster l'équilibre financier du projet, si le revenu est insuffisant. Enfin une approche d’optimisation multi-objectif est développée afin de permettre de visualiser les différents compromis auxquels l’introduction de la flexibilité donne lieu. / Public private partnerships can be a solution to the dilemma of how to do more with less available funds that public entities are constantly financing in the last decades. If implemented properly, Public Private Partnerships can contribute to the modernization of public service provision and can constitute efficient vehicles for the delivery of optimal value for money. The high incidence of renegotiation as well as the difficulty of accurately predicting the future demand on the projects is a matter of concern when it comes to the financial structuring of Public Private Partnerships. This work proposes a real-option- based optimization framework to boost the financial viability of the projects. This is done by introducing flexible financial clauses. First, an adequate framework for risk management, where volatility is derived by Monte Carlo simulation and the valuation is made without switching to the risk neutral measure, is presented. Four families of flexible clauses are, afterwards, investigated. Such clauses are triggerred, if the revenue level of the projet is not sufficient to guarnatee its financiel viability. Finally, this work develops a multi-objective optimization approach in order to assess the different trade-offs that the introduction of flexibility leads to. The proposed optimization problem is solved via multi-objective evolutionary algorithms.

Det outtalade – What is not uttered. The purpose of this study is to observe and analyze interaction between young children and between them and their educators focusing on power relations shown by non verbal communication. The study argues that such expressions can often lead to violations that can be more difficult to address than those outspoken. In our intents as educators to remediate unequal relationships between children and between them and their educators and create a positive social atmosphere in the school context, we need to pay attention to nonverbal interaction. We also need to develop an adequate set of vocabulary in order to be able to discuss what happens and our practice; how we ourselves as educators interact, dealing with it. The study suggests how to – by using a palette of definitions and concepts, collected from different theories. I have performed observations in an Elementary School class, year one and at their After-school programme and furthermore interviewed the educators and pupils participating in the study. The theoretical framework used in the analysis is a combination of positioning and social dramaturgical theory. I present and discuss the negative nonverbal communication that I identified in my observations using four theoretical perspectives, all contributing to shed light on different aspects of power relations and relational creating interaction. These four are: 1. Johnstone’s positioning theory regarding how all human beings engage in High/Low swings in interpersonal relationships (1985).  2. The non vocal aspects of Eile’s theory of The Master Suppression Techniques and their Counter-strategies (2015) based on Ås’ theory (1989). 3. The Sociological theory of Goffman’s The presentation of the Self in Everyday life, an interactionist/dramaturgical perspective (1959). 4. The Low Arousal Approach as presented by Heljskov Elfvén &amp; Wiman (2015). Among the results I found several occurrences of negative non verbal interaction in this First Grade Elementary class between pupils and educators and that the vocabulary of the used perspectives were applicable. The study’s result implies that awareness of non verbal communication can increase both children’s and educator’s available positions and repertoire of actions. / Studien syftar till att undersöka, lyfta fram och belysa tyst maktspel på lågstadiet. Studiens huvudsakliga syfte är att observera negativ icke verbal interaktion mellan barn sinsemellan och mellan pedagoger och barn med fokus på maktförhållanden. Ett andra syfte är att samla begrepp från olika teorier som belyser detta på olika sätt och på så vis presentera en vokabulär för att sätta ord på det outtalade, som kan vara användbar för pedagoger i förebyggande arbete mot kränkningar i skola och på fritidshem. Detta då det implicit uttryckta outtalade kan leda till kränkningar som ofta kan vara svårare att komma åt än sådana som bygger på det explicit uttalade. Jag har gjort observationer av en klass ett och deras tre pedagoger i olika situationer i skolan och på fritidshemmet. Observationer har oftast direkt följts upp med samtal om vad som hände. Empirin har så analyserats med utgångspunkt i positioneringsteori och det social-dramaturgiska perspektivet utifrån begrepp hämtade från fyra teorier av Eile (2015 – utifrån Ås, 1989), Goffman (1959), Johnstone (1985) samt Wiman &amp; Hejlskov Elfvén (2015) som alla på olika vis belyser kroppsspråk ur ett relationellt maktperspektiv. Två längre intervjuer har genomförts: inledningsvis med Eile, doktorand i pedagogik specialiserad på ickeverbal interaktion och avslutningsvis med två av klassens pedagoger som reflekterat kring de observationer som gjorts och hur de tolkas. Uppsatsens resultat visar att bruk av ickeverbala negativa signaler förekommer som maktspel redan på lågstadiet och implikerar att pedagogernas kunskaper om kroppsspråk och maktspel i form av hög- och lågstatusspel och Härskartekniker samt kännedom om strategier för att motverka negativa effekter av detta – som till exempel genom Motstrategier, Bekräftartekniker och Lågaffektivt bemötande – kan ha inverkan på hur dessa signaler påverkar klassen. Jag förordar därför vidare forskning på området och att pedagoger, i sitt arbete för jämbördiga relationer och för att skapa en positiv psykosocial skolmiljö, även bör uppmärksamma det outtalade. Mer kunskaper om de negativa ickeverbala signalerna och de metoder och den vokabulär som här lyfts fram för hur det kan motverkas tycks kunna användas som ett sätt att motverka mobbing i det tysta. Medvetenhet om dylikt ger fler möjliga sätt för barn och vuxna att förhålla sig till sin egen position i mötet med andra och därmed en större handlingsrepertoar. / <p>Examinator blev samma person; Adrian Ratkic, som var den första handledaren för denna uppsats, men då det var redan 2016 och uppsatsen sedan dess skrivits om och givits ny form osv så ansåg kursansvarige, Frans Hagerman, att det var i sin ordning. Efter att uppsatsen ventilerats första gången 2018 med examinatorn Liza Haglund som berömde intentionerna men saknade den stringens som bör känneteckna ett dylikt arbete, fick jag så värdefull handledning av henne som möjiggjorde presentationen av denna reviderade version 2019.</p>

Zentraler Gegenstand dieser Dissertation ist die Entwicklung von mathematischen Methoden zur Charakterisierung und Implementierung von optimalen Investmentstrategien eines Kleininvestors auf einem Finanzmarkt. Zur Behandlung dieser Probleme ziehen wir als Hauptwerkzeug Stochastische Rückwärts-Differenzialgleichungen (BSDEs) mit nicht-linearen Drifts heran. Diese Nicht-Lineariäten ordnen sie außerhalb der Standardklasse der Lipschitz-stetigen BSDEs ein und treten häufig in finanzmathematischen Kontrollproblemen auf. Wir charakterisieren das optimale Vermögen und die optimale Investmentstrategie eines Kleininvestors mit Hilfe einer sog. Stochastischen Vorwärts-Rückwärts-Differenzialgleichung (FBSDE), einem System bestehend aus einer stochastischen Vorwärtsgleichung, die vollständig gekoppelt ist an eine Rückwärtsgleichung. Die Festlegung bestimmter Nutzenfunktionen führt uns schließlich zu einer weiteren Klasse von nicht-standard BSDEs, die in unmittelbarem Zusammenhang zu dem sog. Ansatz der stochastischen partiellen Rückwärts-Differenzialgleichungen (BSPDEs) steht. Anschließend entwickeln wir eine Methode zur numerischen Behandlung von quadratischen BSDEs, die auf einem stochastischen Analogon der Cole-Hopf-Transformation basiert. Wir studieren weiterhin eine Klasse von BSDEs, deren Drifts explizite Pfadabhängigkiten aufweisen und leiten mehrere analytische Eigenschaften her. Schließlich studieren wir Dualdarstellungen für Optimalen Mehrfachstoppprobleme. Wir leiten Martingal-Dualdarstellungen her, die die Grundlage für die Entwicklung von Regressions-basierten Monte Carlo Simulationsalgorithmen bilden, die schnell und effektiv untere und obere Schranken berechnen. / This thesis elaborates on the wealth maximization problem of a small investor who invests in a financial market. Key tools for our studies come across in the form of several classes of BSDEs with particular non-linearities, casting them outside the standard class of Lipschitz continuous BSDEs. We first give a characterization of a small investor''s optimal wealth and its associated optimal strategy by means of a systems of coupled equations, a forward-backward stochastic differential equation (FBSDE) with non-Lipschitz coefficients, where the backward component is of quadratic growth. We then examine how specifying concrete utility functions give rise to another class of non-standard BSDEs. In this context, we also investigate the relationship to a modeling approach based on random fields techniques, known by now as the backward stochastic partial differential equations (BSPDEs) approach. We continue with the presentation of a numerical method for a special type of quadratic BSDEs. This method is based on a stochastic analogue to the Cole-Hopf transformation from PDE theory. We discuss its applicability to numerically solve indifference pricing problems for contingent claims in an incomplete market. We then proceed to BSDEs whose drifts explicitly incorporate path dependence. Several analytical properties for this type of non-standard BSDEs are derived. Finally, we devote our attention to the problem of a small investor who is equipped with several exercise rights that allow her to collect pre-specified cashflows. We solve this problem by casting it into the language of multiple optimal stopping and develop a martingale dual approach for characterizing the optimal possible outcome. Moreover, we develop regression based Monte Carlo algorithms which simulate efficiently lower and upper price bounds.

本研究針對臺灣摩根指數的成分股進行分析，研究樣本期間從2008年至2010年，合計三個年度，正好歷經景氣的一個多空循環週期。本研究利用技術指標作為判讀多空的工具，技術指標包含價與量的技術分析工具，價格的技術指標有趨勢指標MA、擺盪指標KD與MACD，量的技術指標則是OBV。並利用優化的方式挑選出合適的參數值。本研究的風險控管則是控管個股的偏離程度，當允許的偏離程度愈大，模型便愈能區別出強勢股與弱勢股，風險的衡量指標則是採用年化追蹤誤差值來衡量，本研究設定的限制條件為最大累積年化追蹤誤差值不得超越6%。 實證結果發現，當模組的模型年化追蹤誤差值設定愈大，個股的偏離程度就愈大，模組的報酬表現就愈佳，但同樣的風險也愈大，即年化追蹤誤差值愈大。當模型年化追蹤誤差值設定在24%，並搭配MA、MACD與OBV三個技術指標得到的績效最佳，同時亦能夠將風險控制在設定的6%水準之下。 / This study analyzed the component stocks in MSCI Taiwan Index. The analyzed data from 2008 to 2010 was exactly an economic cycle. The study was based on technical analysis, including price and volume to judge that the price was bullish or bearish. The price technical analysis included Moving Average (MA), Stochastic Line (KD) and Moving Average Convergence and Divergence (MACD). The volume technical analysis was On Balance Volume (OBV). The study used the method of optimization to choose the best parameter of each technical analysis. The risk control was to limit the bias of each stock. When the bias of each stock was larger, the model could easily distinguish the stock was bullish or bearish. The risk indicator was annual tracking error limited to 6% in the study. The empirical results showed that the larger the model annual tracking error set, the large bias the stock show, and the outperformance of the return. But with the performance of the return larger, the risk of tracking error was also getting larger. When the model annual tracking error set to 24%, and utilized MA, MACD and OBV would get the best performance and the risk of annual tracking error was under 6%.

Esta tesis investiga la economía política de las transferencias intergubernamentales. Se centra en los factores políticos que determinan la asignación de fondos bajo control de gobiernos centrales a las diversas regiones. El primer capítulo, contribuye a este asunto a través de un nuevo análisis de los datos del panel y una medida comprensiva de necesidades de gastos para el caso de Rusia. El segundo capítulo, desarrolla nuevas herramientas metodológicas para analizar sistemas políticos del multi-partido. Estas herramientas permiten medir a votantes cambiantes en dos dimensiones ideológicas usando datos individuales de los estudios electorales. En el tercer capítulo se utilizan las medidas de votantes cambiantes para probar teorías de las políticas distributivas para el caso de España. Este capítulo demuestra que las variables políticas son significativas en la asignación de las subvenciones del estado, y la magnitud del efecto es comparable a la de variables económicas. / This thesis investigates the political economy view of intergovernmental grants. It centers on the political factors that determine allocation of funds under the control of central governments to different regions. The first chapter contributes to this topic by a novel analysis of panel data and a comprehensive measure of expenditure "needs" for the case of Russia. The second chapter develops new methodological tools for analyzing multi-party political systems. These tools allow to measure swing voters on two "ideological" dimensions using individual survey data. In the third chapter the measures of swing voters are used to test theories of distributive politics for the case of Spain. This chapter shows that political variables are significant in the allocation of state subventions, and the magnitude of the effect is comparable to that of economic variables.

Il ballo sociale di coppia è una forma di svago che è tornata ad essere praticata da giovani e adulti soprattutto dagli anni Novanta. Questa ricerca sociologica ha per oggetto gli eventi di ballo sociale di coppia che hanno luogo attualmente a Milano in spazi pubblici, soprattutto nel centro città, senza autorizzazioni formali e privi di finalità di lucro. L’ipotesi di base è che questi eventi, organizzati da gruppi di ballerini attraverso reti sociali online, siano parte di un fenomeno sociale unico. I tipi di ballo coinvolti sono il tango argentino, la mazurka francese neotrad, lo swing e i balli del sud Italia. Questo lavoro, attraverso l’osservazione partecipante in situazione e interviste in parte semistrutturate e in parte biografiche, mira ad individuare i significati specifici che distinguono tale pratica urbana dal ballo di coppia in luoghi istituzionali e quale sia il ruolo giocato dello spazio pubblico nel differenziare i due oggetti. Nell’analisi delle interviste, l’ambito di significato relativo alla socialità collettiva si è distinto rispetto agli altri per corposità e complessità, è stato perciò scelto come chiave interpretativa del fenomeno. Questa pratica si rivela, infine, una forma di socievolezza e un ambiente sociale in cui esperire un’intimità di gruppo generata da interazioni estemporanee tra conoscenti, e trova negli spazi pubblici della città il suo teatro di espressione privilegiato. / In Western culture, social partner dances have re-emerged as a leisure activity for young and adults since the 90’s. This sociological research concerns social partner dancing events taking place in public spaces in Milan nowadays, especially in the city centre. They are organized through online social networks by groups of dancers who occupy the public space without any formal license and any profit-mindedness; Argentinian tango, French mazurka, swing, and Southern Italian dances are the types of dances involved. The underlying assumption is that these street events are part of a unique social phenomenon. By means of an at home perspective to participant observation, semistructured, and in-depth interviews, this work aims, firstly, to find specific meanings to this practice by comparing it to partner dances performed in institutional places; and secondly, to identify the role of public space in this framework. The collective sociality dimension of meaning has been chosen as a key to interpretation, since it stood out for complexity and relevance. This urban practice turns out to be a kind of simmelian sociability and an environment to experience a group intimacy produced by extemporary interactions of acquaintances; of which urban public spaces, furthermore, prove to be a perfect theatre to its full expression.

This master's thesis describes possibilities of Oracle Database 10g and 11g monitoring. It let the reader know about practical tools for monitoring and describes the database's internal catalogs preserving statistics and the information about running database instances within history. Next, it describes design of an Oracle database monitoring tool, describtion of its implementation and at the end its evaluation and comparison with other similar applications.

This master´s thesis provides an overview of all designs of check valves, their usage and typical features. Main purpose of this work is to clear up the phenomenon of check valve slam and the other problems that occur during transients. The check valve slam was measured at the test rig in the hydraulic laboratory. For unsteady flow evaluation after pump shut down was used Gibson method. The dynamic characteristic was possible to create by results from this method. It was achieved without impact of the speed of sound in the fluid. This work also contains 2D transient CFD calculations, which was used for evaluation of the hydrodynamic torque acting on the hinge pin. This approach provides an option to calculate wide range of cases at the expense of not entirely exact geometry. The main contribution of the theoretical study at the beginning of this thesis is its entireness. It might give an important clue when right valve is selecting. For good choice of valve might be helpful to use dynamic characteristics in this thesis presented. Mentioned characteristics were created by new way and its background is in measurements and simplified CFD calculations.

Cette thèse présente l'étude de la réduction de modèles pour les réseaux électriques et les réseaux de transmission. Un point de vue mathématique a été adopté pour la réduction de modèles. Les réseaux électriques sont des réseaux immenses et complexes, dont l'analyse et la conception nécessite la simulation et la résolution de grands modèles non-linéaires. Dans le cadre du développement de réseaux électriques intelligents (smart grids) avec une génération distribuée de puissance, l'analyse en temps réel de systèmes complexes tels que ceux-ci nécessite des modèles rapides,fiables et précis. Dans la présente étude, nous proposons des méthodes de réduction de de modèles à la fois a priori et a posteriori, adaptées aux modèles dynamiques des réseaux électriques.Un accent particulier a été mis sur la dynamique transitoire des réseaux électriques, décrite par un modèle oscillant non linéaire et complexe. La non-linéarité de ce modèle nécessite une attention particulière pour bénéficier du maximum d'avantages des techniques de réduction de modèles.Initialement, des méthodes comme POD et LATIN ont été adoptées avec des degrés de succès divers. La méthode de TPWL, qui combine la POD avec des approximations linéaires multiples, a été prouvée comme étant la méthode de réduction de modèles la mieux adaptée pour le modèle dynamique oscillant.Pour les lignes de transmission, un modèle de paramètres distribués en domaine fréquentiel est utilisé. Des modèles réduits de type PGD sont proposés pour le modèle DP des lignes de transmission. Un problème multidimensionnel entièrement paramétrique a été formulé, avec les paramètres électriques des lignes de transmission inclus comme coordonnées additionnelles de la représentation séparée. La méthode a été étendue pour étudier la solution du modèle des lignes de transmission pour laquelle les paramètres dépendent de la fréquence. / This thesis presents the study of the model order reduction for power grids and transmission networks. The specific focus has been the transient dynamics. A mathematical viewpoint has been adopted for model reduction. Power networks are huge and complex network, simulation for power grid analysis and design require large non-linearmodels to be solved. In the context of developing “SmartGrids” with the distributed generation of power, real time analysis of complex systems such as these needs fast,reliable and accurate models. In the current study we propose model order reduction methods both a-priori and aposteriori suitable for dynamic models of power grids.The model that describes the transient dynamics of the power grids is complex non-linear swing dynamics model. The non-linearity of the swing dynamics model necessitates special attention to achieve maximum benefit from the model order reduction techniques. In the current research, POD and LATIN methods were applied initially with varying degrees of success. The method of TPWL has been proved as the best-suited model reduction method for swing dynamics model ; this method combines POD with multiple linear approximations.For the transmission lines, a distributed parameters model infrequency-domain is used. PGD based reduced-order models are proposed for the DP model of transmission lines. A fully parametric problem with electrical parameters of transmission lines included as coordinates of the separated representation. The method was extended to present the solution of frequency-dependent parameters model for transmission lines.