Le laitier EAF inox et le laitier AOD sont les deux principaux laitiers issus de l'élaboration des aciers inoxydables. Aujourd'hui ces laitiers ne sont valorisés qu'en construction routière. Cette utilisation ne permet pas d'assurer une valorisation complète et pérenne de ces laitiers dont une large part reste stockée. Compte tenu des propriétés physiques des laitiers EAF inox et AOD solidifié par stabilisation, leur utilisation comme granulats dans le béton peut être intéressante. L'objectif de cette thèse est d'étudier la faisabilité de cette voie de valorisation. Ces travaux sont réalisés en deux parties.Premièrement les propriétés physico-chimiques et mécaniques des granulats de laitiers EAF inox et AOD stabilisé sont déterminées. La composition minéralogique complète de ces granulats de laitiers issus de l'élaboration d'aciers inoxydables est aussi analysée afin de rechercher la présence éventuelle de minéraux instables et incompatibles à leur utilisation dans le béton. Compte tenue de la fluorescence sous rayons ultra-violet (UV) des laitiers, une nouvelle approche qui associe les UV et les analyses minéralogiques courantes (DRX, MEB, EDS) est développée dans cette étude. Cette étape de caractérisation des granulats des laitiers étudiés fait de ce mémoire de thèse le premier rapport sur la caractérisation physique, chimique et minéralogique des granulats de laitier AOD stabilisé. La deuxième étape de cette étude consiste à réaliser des bétons en substituant, dans des proportions variées, des granulats naturels silico-calcaires d'un béton de référence par des granulats de laitiers EAF inox et AOD stabilisé. Les propriétés physiques et mécaniques de ces bétons à matrice ordinaires et à hautes performances sont évaluées. Une étude de durabilité de ces bétons est aussi effectuée à travers le suivi des propriétés mécaniques des bétons sur 365 jours, l'analyse d'indicateurs de durabilité et la réalisation d'essais de gonflement. Enfin des observations MEB sont faites sont faites les échantillons de béton âgés de 365 jours pour observer et analyser le réseau de fissures à l'interface granulat – matrice cimentaire. Les résultats montrent des propriétés adaptées à une utilisation structurelle, avec une légère amélioration des caractéristiques mécaniques et des propriétés de durabilité acceptables pour les bétons de granulats de laitiers EAF inox et AOD stabilisé. / Electric Arc Furnace (EAF) slag and Argon Oxygen Decarburization (AOD) slag are the two principal slags resulted from stainless steel manufacture. Unlike blast furnace slag, a significant part of these steel slags is not valued and has to be treated as waste. Stainless steel slags are nowadays only used as aggregates in road construction and their future valorisation in concrete for building could be interesting. To our knowledge, that possibility has not yet been studied in the literature. The objective of this work is to study the possibility of using slags from stainless steel process as aggregates in concrete. Moreover, this is the first report on mineral composition and physical properties of stabilized AOD slags from stainless steel process.In this study, physicochemical and mechanical properties of EAF slag and stabilised AOD slag aggregates are firstly determined. Mineralogical composition of these stainless steel slag aggregates is also analysed to verify if they contain mineral phases likely to show expansion reactions. An original method using short and long UV lights was developed for studying the mineralogical composition of slag. Secondly, the natural aggregates of reference concretes are substituted, in different proportions, by stainless steel slag aggregates and several physical and mechanical properties are measured on concrete samples. The evolution of concrete mechanical properties has been followed over the time up to 365 days. Similarly, durability tests and swelling tests are made on concrete samples to assess the impact of EAF and AOD slag aggregates. SEM observations of crack network at the paste-aggregate interface and in concrete samples were carried out. The results show adequate structural properties, with a slight improvement of the mechanical properties for concretes made of stainless steel slag aggregates. The durability and expansion characteristics of these concretes are sufficient for construction use.

A obra de Adam Smith é expressão de uma nova concepção de progresso elaborada principalmente durante a segunda metade do século XVIII. O desenvolvimento da sociedade passa a ser compreendido enquanto resultado da interação entre os indivíduos e expressão das faculdades e disposições humanas. Examinamos como essa nova perspectiva aparece nos estudos de Smith sobre as mais diversas áreas, como produção de riquezas, linguagem e ciência, mostrando como a relação entre essas esferas da sociedade é de interdependência dentro de um sistema. Ao analisar como Smith aborda diferentes temas, destacamos um aspecto comum importante entre os diferentes textos do autor: a noção de ordem. A procura desta aparece enquanto estímulo para as transformações da sociedade. Ela também conforma o método de investigação utilizado por Smith: a criação de sistemas explicativos com base nas regularidades entre as mais diferentes sociedades. Esse modelo possibilita, por exemplo, a formulação da teoria de desenvolvimento baseada em quatro estágios. Também acaba por conformar uma nova forma de se produzir história: em vez de narrar os acontecimentos de certos grupos particulares, procuram-se as regularidades entre estes para construir a história da espécie. Em suma, esta dissertação interpreta como as ideias de progresso e ordem na obra de Adam Smith estão fortemente interconectadas. / The work of Adam Smith is an expression of a new conception of progress elaborated mainly during the second half of the eighteenth century. Society\'s development comes to be understood as an effect of the interaction between individuals and of the expression of human faculties and dispositions. We examine how this new perspective appears in Smith\'s studies on different topics, such as the production of wealth, language and science, showing how the relationship between those spheres of society is characterized by an interdependence within a system. In analyzing how Smith addresses distinctive themes, we highlight an important common aspect among the author\'s different texts: the notion of order. The demand for it appears as a stimulus for the transformations of society. It also corresponds to the method of investigation used by Smith: the creation of explanatory systems based on the regularities among the most different societies. This model enables, for example, the formulation of the four-stage theory of development. It also ends up in a new way of producing history: instead of narrating the events of particular groups, one searches for the regularities between them to construct the history of the species. In short, this dissertation interprets how the ideas of progress and order in Adam Smith\'s work are strongly interconnected.

Student Number : 9707408V - MSc(Eng) research report - School of Mechanical, Industrial and Aeronautical Engineering - Faculty of Engineering and the Built Environment / This research is an investigation into the performance and combustion characteristics of a two-cylinder, four-stroke compression ignition engine fuelled on diesel and then on dimethyl ether (DME). Baseline tests were performed using diesel. The tests were then repeated for dimethyl ether fuelling. All DME tests were performed at an injection opening pressure of 210 bar, as recommended for diesel fuelling. The tests were all carried out at constant torque with incremental increases in speed and an improved method of measuring the DME flow rate was devised. It was found that the engine’s performance characteristics were very similar, regardless of whether the engine was fuelled on diesel or DME. Brake power, indicated power and cylinder pressure, during the highest loading condition of 55 Nm, were virtually identical for diesel and DME fuelling, with the most significant finding being that the engine was more efficient when fuelled on DME than when fuelled with diesel. Another interesting finding was that the energy release of diesel decreases with increasing load, whilst the energy release of DME increases with increasing load. At the highest loading condition of 55 Nm, the energy release of DME was approximately 210 joules higher than that of diesel. This investigation concluded that DME may definitely be a suitable substitute fuel for diesel.

As more and more investors look to diversify their portfolios further, their attentions have moved past emerging markets in recent years, towards the so-called frontier markets. Frontier markets are less developed and liquid than emerging markets but offer tremendous opportunities for investors willing to allocate capital into them. This thesis will look into the applicability of global, as well as Frontier Fama-French-Carhart four-factor models within these markets and what the consequences are in terms of the efficient market hypothesis. The factor models will try to explain returns based on Size, Value and Momentum, as the literature has shown that asset pricing models tend to have difficulties explaining these strategies. Our findings indicate that Global Fama-French factors do partially explain long-only returns, yet Frontier Fama-French-Carhart factors appear more suitable. However, the results indicate that there is a factor missing in Frontier Fama-French-Carhart factors, which could explain the excess returns. Moreover, as we did not find statistically significant and positive intercepts for all applied Momentum strategies against the Frontier and Global Fama-French-Carhart factors (not even in the robustness test), we cannot reject the weak efficient market hypothesis. However, dollar-neutral Size and Value strategies (also the combined portfolio with dollar-neutral Momentum) seem to consistently outperform Frontier and Global factors.

Dans un certain cinéma contemporain, souvent considéré comme « contemplatif »,les éléments du décor occupent une place de plus en plus importante, que celle-ci soit plastique ou narrative. Partant de ce postulat, nous avons choisi de nous intéresser aux décors naturels (en extérieur) et plus spécifiquement aux quatre éléments : l’eau, l’air, la terre et le feu. La poétique inhérente à ces éléments primordiaux au cinéma dévoile une exacerbation d’un rapport sensible, voire cénesthésique, à la nature qui semble se transmettre des personnages au spectateur. Plus qu’un arrière-plan ou un motif, l’espace diégétique devient alors un matériau permettant de questionner l’« être-au-monde » heideggérien. En privilégiant des approches esthétiques, phénoménologiques et psychanalytiques, cette étude met en lumière comment les quatre éléments – tour à tour ,dispositifs visuels et sonores, instruments heuristiques et outils épistémiques – participent d’une esthétique du retour qui serait, selon nous, caractéristique de ce type de cinéma, initié par Tarkovski dès les années 1960. Nous tentons ainsi de démontrer que cette notion de retour – qu’il soit spatial, temporel ou réflexif – constitue le principal moteur d’une réflexion sur le rapport qu’entretient l’homme avec son environnement mais également sur le medium cinématographique, ses caractéristiques, son dispositif et sa réception. / In some contemporary films, often considered as “contemplative”, the scene elements occupy a more and more important place, be it aesthetic or narrative. Working from this initial assumption, I have chosen to focus my researches on the natural settings (on location), and more precisely on the four elements: water, air, earth and fire. The poetics of these elements in films reveals an exacerbation of a sensitive, or even cenesthesic relation with nature, which seems to be conveyed from the characters to the audience. More than a background or a pattern, the diegetic space then becomes a precious material to question the Heideggerian notion of “Being-in-the-world”. With an emphasis on aesthetic, phenomenological and psychoanalytical approaches, this study highlights how the four elements – in turns, visual and sound devices, heuristic instruments, and epistemic tools –partake in an aesthetics of returning which, we believe, is characteristic of this kind of cinema, initiated from the 1960s by Tarkovsky. Thus, we try to demonstrate that this notion of return – be it spatial, temporal or reflexive – is the major driving force of a thought about the relationship between human beings and their environment, but also about the cinematographic medium, its features, its devices and its reception.

Thesis advisor: James F. Keenan / This dissertation aims to give a theoretical account of the cardinal virtue of temperance that portrays it as an attractive (albeit demanding) virtue, and provides the justification and method for applying it to multiple spheres of life today. To this end, it offers a critical interpretation and retrieval of Saint Thomas Aquinas' account of the four causes of <italic>temperantia<italic> in the <italic>Summa Theologiae<italic>. I claim that, for Thomas, the four causes of a moral virtue are its mode (formal cause), matter and subject (material cause), proper end (final cause) and agent (efficient cause). Less technically, they can be expressed in terms of five guiding questions to be used in understanding any given virtue: What is the practical wisdom actualized by that virtue? What is the sphere of life with which the virtue is concerned? What aspect of the human heart and mind does the virtue modify? What is the virtue for? What causes the virtue to exist and increase? To answer to these five questions is to give an account of a moral virtue. This dissertation develops and applies this causal method for analyzing a moral virtue, both as a means of interpreting Thomas' account of temperance, and as a tool for constructing a theory of temperance for today. Temperance, I claim, can be defined as the modulation of attraction for the sake of right relationship. It is developed through both discipline and grace. Temperance does not repress desire, but forms and channels its positively, placing it at the service of right relationship to oneself, others, the earth and God. It does limit and restrain desire, but always for the sake of deeper and more meaningful goods. Temperance therefore modulates harmoniously between the restraint and the redirection of desire, the fast and the feast. Temperance is often misunderstood as proposing a purely negative ideal of repression and constraint. The dissertation claims that, on the contrary, temperance is a positive and attractive virtue, and one that is urgently needed in consumer society. / Thesis (PhD) — Boston College, 2010. / Submitted to: Boston College. Graduate School of Arts and Sciences. / Discipline: Theology.

Esta tese tem como objetivo central investigar as formas que o discurso sobre a Educação Inclusiva assume na contemporaneidade e os efeitos desse discurso para a subjetividade das crianças, pais e profissionais da escola. Para isso, realizamos inicialmente um levantamento bibliográfico acerca da inclusão escolar, apresentando as origens desse movimento, os principais marcos legais que organizam o campo e as perspectivas teórico-críticas atuais. Em seguida, analisamos a emergência da temática da diferença na educação e apresentamos a abordagem psicanalítica da diferença e sua função na constituição do sujeito a partir das obras de Freud e Lacan. A partir da psicanálise, propomos uma articulação entre ética e inclusão, destacando o alinhamento do discurso sobre a educação inclusiva com os fundamentos éticos e morais previamente apresentados. Nosso referencial teórico-metodológico é a psicanálise de orientação lacaniana, em especial o instrumento dos quatro discursos formalizado por Lacan no Seminário 17: O avesso da psicanálise. O corpus de nossa pesquisa é composto por fragmentos discursivos oriundos de duas fontes: do atendimento de um grupo de profissionais que trabalham com educação inclusiva, cuja escuta é realizada pela pesquisadora no Serviço de Psicologia Escolar do Instituto de Psicologia da Universidade de São Paulo e do material veiculado pelo Fórum Permanente de Educação Inclusiva. Os resultados foram reunidos em torno dos seguintes temas: a deficiência como metonímia do sujeito, a dimensão da técnica e a lógica da especialização, o discurso do capitalista e seus efeitos para a inclusão escolar, a construção do ideal e a escola. Ao final, apresentamos as contribuições que a noção de ética em psicanálise pode trazer para a educação inclusiva. / This research aims to investigate the central ways in which the discourse on Inclusive Education assumes in contemporary times and the effects of this discourse on the subjectivity of children, parents and school professionals. In order to accomplish this goal, we first review the literature concerning Inclusive Education, showing the origins of this movement, the main legal frameworks that organize this subject and the current theoretical perspectives. We then analyze the emergence of the theme of the difference in education, and present the psychoanalytic approach of difference and its role in the constitution of the subject based on the works of Freud and Lacan. Using psychoanalysis, we propose a link between ethics and inclusion, highlighting the alignment of the discourse on Inclusive Education with the ethical and moral foundations previously presented. Our theoretical and methodological framework is the Lacanian psychoanalysis, particularly the instrument of four discourses formalized by Lacan in Seminar, Book 17: the other side of psychoanalysis. The corpus of our research consists of discursive fragments from two sources: the care of a group of professionals working in Inclusive Education, whose listening were conducted by the researcher in the Department of Educational Psychology at the Institute of Psychology of the University of São Paulo, and material disseminated by the Permanent Forum on Inclusive Education. The results were gathered around the following themes: disability as metonymy of the subject, the extent of technical expertise and the logic of the specialization, the capitalist discourse and its effects on school enrollment, and the foundation of the ideal and the school. At the end, we present the contributions that the notion of ethics in psychoanalysis can bring to Inclusive Education.

The preparation of single photons in a pure quantum state is a subject of great interest in physics, enabling the control of light at an unprecedented level. The ease with which certain degrees of freedom of photon states, such as polarisation, can be manipulated, along with the inherent resilience of photons to decoherence, makes them well suited for use as qubits. Recent rapid developments in the transmission and processing of quantum information, as well as the likely technological impact of potential real-world applications such as quantum cryptography and quantum computation, mean that the demand for high performance single photon sources is likely to increase in the near future. One approach to producing single photon states, which are known to be in a well-defined spatio-temporal mode without destructively measuring them, is to take advantage of nonlinear optics. Nonlinear processes can be used to realise frequency conversion by generating a single, correlated pair of photons from an intense pump laser source. The detection of one of the photons from a pair can then be used to indicate the presence of the other photon in the pair, a procedure known as heralding. This thesis describes the development of a source of heralded single photons at 1550 nm, generated directly in the core of a photonic crystal fibre (PCF). By taking advantage of low loss fibre components for the required spectral filtering of the generated photon state, a heralding fidelity of 52% was achieved. The source was designed to be used with a picosecond pulsed fibre laser, making it relatively low cost and maintenance free. With 148 mW of average pump power a heralded output photon rate of 6.4 × 104 s-1 was observed, demonstrating the brightness of the source. The purity of the generated single photons was established by measuring non-classical interference, with a visibility of 70%, between the photons output from this source and a source based on a PPLN waveguide. The fabrication of a series of birefringent PCFs for the generation of spectrally pure state photons at 1550 nm is also discussed. These PCFs will be useful for incorporation in the next generation of high performance, fibre-based photon sources.

Women have a few managerial positions compared to men in audit and accounting firms. It said that large companies have intentions to increase the number of women accountants in managerial positions. The study is investigating the implementation of gender policies and diversity in auditing firm with a specific focus on how company size may impact how organizations come to work with issues of gender and diversity. A qualitative method has been implemented in this study, by conducting 17 semi-structured interviews with women auditors and accountants, working in 4 large firms and 5 small firms in Sweden. The study shows that the policies of the large companies are not fully implemented. While setting policies for small firms will just help women auditors/accountants to improve their career education.

The enzymatic method for ethanol measurement can detect very low concentration of ethanol at samples, consequently it can’t be applied for samples with high concentration and implies as very sensitive method at limited range of detection.The alcohol dehydrogenase method is based on oxidation of alcohol in the presence of ADH as enzyme and NAD+ as coenzyme and formation of acetaldehyde and NADH that can be monitored by spectrophotometric measurement at 334,340 or 365 nm wavelengths.Ethanol +NAD+ ADH↔ Acetaldehyde +NADH+H+For optimum conditions of measurements all the parameters that affect the enzymatic reaction including temperature, pH, trapping agent for product and proper mixing need to be optimized.In order to calculate the unknown concentration of ethanol in a sample based on this method,it is crucial to find right mathematical model to calculate the unknown concentrations of ethanol in the sample using a mathematical equation that generalizes relationships among the reactants in the reaction including the reaction products. In most enzymatic reactions many parameters are involved meaning that the reaction seldom follows simple linear relation between concentration and signal. Four-parameter logistic model is well suited for modeling sigmoid relationships frequently found in biology.The aim of this project is determination of ethanol at microdialysis samples and the fundamental reason for developing the present measurement method was to study changes in blood flow in living tissues using wash out of the very dissolvable ethanol as a flow marker using the Microdialysis technique.Result from this measurement technique for microdialysis samples shows that ethanol can be detected at range of 0,5-16mmol/L and whole detected concentration for different samples during one microdialysis test follows the inverse relation of blood flow changes in tissue.Also the reported result from Urea test as general method for studying blood flow changes and ethanol test for microdialysis sample has been compared and leads to this conclusion that ethanol techniques is as reliable tool for studying blood flow changes. / Uppsatsnivå: D