Global ETD Search

61	Zabezpečovací systém s komunikací přes mobilní telefon / Security system with mobile phone communication Ulbrich, Jakub January 2009 (has links) This thesis deals with the question of electronic security systems. In the forepart are described electronic security system components such as keyboards, detectors, alarm devices etc. Various methods of security or de-security of properties, trespassing and other events detection methods, and ways of alarm calling are described there too. The next part of the master’s thesis focuses on the construction of an alarm system which is designed for security of a common-size flat with one entry. The system manages to control up to four movement detectors. The operation of the system is handled by a 16 button keyboard, and easy orientation is provided thanks to a liquid crystal display. The alarm is signaled by an indoor alert siren, however, other alarm announcing devices with an input matched for the log. 0 or log. 1 reception can be connected too. The system contains communication equipment (mobile phone) which signals alarm at a distance to the three telephone numbers. User can use a distance control by text message to unlock system or to determine its status. The system is controlled by the microcontroller AVR ATmega16, the product of Atmel company. A brief description of all components of the electronic alarm system is included in this work.
62	Analyse comparative de génomes complets de souches pathogènes et de portage de Staphylococcus lugdunensis et caractérisation du système de sécrétion Ess/type VII / Comparative analysis of whole genomes of pathogenic and carriage strains of Staphylococcus lugdunensis and characterization of the type VII secretion system Lebeurre, Jérémie 20 December 2018 (has links) La première partie de nos travaux a consisté au séquençage de génomes complets de trois souches pathogènes et de trois souches de portage de Staphylococcus lugdunensis pour les comparer aux 15 génomes complets disponibles sur NCBI. Aucun déterminant génétique associé au contexte de virulence ou de portage de S. lugdunensis n’a été identifié. Cependant, nous avons mis en évidence la présence d’éléments génétiques mobiles et des variations dépendantes des complexes clonaux,définis par MultiLocus Sequence Typing, au sein de loci potentiellement associés à la virulence. Des variations ont été observées dans un locus homologue à celui de Staphylococcus aureus codant le système de sécrétion Ess/type VII (SST7). Nous avons mis en évidence huit organisations génétiques chez cette espèce présentant pourtant une structure de population clonale. La seconde partie de nos travaux a consisté à la caractérisation phénotypique et moléculaire du SST7 chez S. lugdunensis par la formation d’un mutant de délétion du gène essC codant une protéine essentielle à la sécrétion. Nos résultats suggèrent que le SST7 serait impliqué dans la translocation de protéines prédites in silico comme impliquées dans la virulence. Néanmoins, dans des modèles de cytotoxicité cellulaire et d’infection du nématode Caenorhabditis elegans, aucune atténuation de la virulence n’a été observée chez la souche mutante malgré une perte de sa capacité à lyser les erythrocytes, comparativement à la souche sauvage. Nos travaux ont également permis de développer et d’évaluer le pouvoir discriminant de trois nouvelles méthodes de typage constituant des outils très prometteurs pour l’épidémiologie moléculaire des infections à S. lugdunensis. / The first part of this study consisted in whole genome sequencing of three pathogenic and three carriage strains of S. lugdunensis and comparison with the 15 genomes available in the NCBI. No genetic determinant was associated to the pathogenic or carriage context. However, we have highlighted the presence of mobile genetic elements and MultiLocus Sequence Typing clonal complex dependent variations within loci potentially associated with virulence. Variations wereobserved in the ess locus homologous to that of Staphylococcus aureus encoding the type VII secretion system (T7SS). We showed eight genetic organizations in this species with a clonal population structure. The second part of our work consisted in a phenotypic and molecular characterization of T7SS in S. lugdunensis by construction of a deletion essC gene mutant. This gene encodes a protein requiredfor protein secretion. Our results suggest that T7SS could be involved in translocation of proteins predicted as implicated in virulence in silico. Nevertheless, no virulence attenuation was observed in cells cytotoxicity assay and Caenorhabditis elegans virulence assays between wild-type and mutant strains which yet has lost the ability to lyse erythrocytes. We also developed and evaluated discriminating power of three new typing methods, which are very promising tools for the molecular epidemiology of S. lugdunensis infections. Staphylococcus lugdunensis Analyse génomique comparative Système de sécrétion Ess/type VII Virulence Génotypage Variable Number of Tandem Repeat Staphylococcus lugdunensis Genomic comparative analysis Type VII secretion system Virulence Genotyping Variable Number of Tandem Repeat 572.86
63	The study of oral tradition in Yoruba movies Omolola, Bayo Rasheed 11 1900 (has links) The study examines two selected Yorùbá movies, focuses on the oral tradition, feelings, and messages in them. Its purpose is to show that the classification or categorisation by previous scholars is not limited to Yorùbá movies; it is adaptable to other movies. Consequently, the study sets out to find an identity for Yorùbá movies and is able to accomplish its aim. It draws on copious examples of oral tradition genres in the selected movies, extract their examples from the movies, and use the extracts to make an argument that the unique way to identify Yorùbá movies is the Yorùbá oral tradition which frequents in the movies. In its attempt to find its focus, it highlights scholars’ ideas of oral tradition worldwide and narrows the concept to the Yorùbá paradigm. The dissertation contains information on research approach, theories, analysis, and findings. Also, it presents the weaknesses of the study and offers useful recommendations. Finally, the study asserts its claim and proves it with evidence from its data. / African Languages / D. Litt. et Phil. (African Languages) Yorùbá Oral tradition Culture Chants Actor(ess) Genres Modern or modernity Movie(s) Feeling Message 791.4308996333 Oral tradition Folk literature, Yoruba Folklore in motion pictures Storytelling Yoruba (African people) -- Folklore Motion pictures, Yoruba
64	Heritage Matters : A Study of Social Mobility Patterns Among First and Second-Generation Immigrants in Europe Stevander, Linnea January 2023 (has links) This thesis examined how the association between immigrants’ occupational origin and destination varies in 33 European countries, depending on the opportunities for social mobility in the origin country. For absolute occupational mobility, the result from an LPM regression showed that first-generation female immigrants had an increased probability of upward mobility when the origin country offered more opportunities for social mobility. In contrast, first-generation male immigrants showed an increased probability of immobility when the origin country offered more opportunities for social mobility. For relative occupational mobility, a multivariate OLS regression showed that first-generation male immigrants from countries with more opportunities for social mobility were more immobile compared to origin countries with fewer opportunities. Based on the World Economic Forum’s Global Social Mobility Index, a variable representing the opportunities for social mobility in the origin country was created. The study used four waves of the European Social Survey and the International Socio-Economic Index (ISEI) to measure the mobility patterns in absolute and relative rates over the scores of opportunities for social mobility in the origin country. Second-generation immigrants showed no significant results, and no gender differences could be established. The results were discussed in relation to first-generation immigrants’ Status Loss. Social Mobility Immigration Social Mobility Index European Social Survey (ESS)
65	Gehobene und exquisite Küche in der Konsumgesellschaft: Dresden um 1900 Krüger, Benedikt 12 March 2019 (has links) Die Studie analyisiert und beschreibt die wissenschaftlichen, lebensreformerischen und gastronomischen Ernährungsdiksurse zur Zeit des Deutschen Kaisereichs mit dem Ziel ein differenziertes Bild kulinarischer Entwicklungen unter den besonderen Bedingungen der entstehenden Konsumgesellschaft herauszuarbeiten. info:eu-repo/classification/ddc/613 ddc:613
66	Reconceptualizing Masculinized L/logos, Re(Image)ining the Rhetorical Feminine in Composition Lee, Melanie January 2011 (has links) No description available. Rhetoric masculinized L/logos absent rhetorical feminine mythos, logos, icon performative rhetoric and composition trope of the schoolmarm rhetoric of distance God/Ess L/logos image integrated text rhetorical feminine authority hybrid dissertation form
67	An airports’ need of change to go 100% green using an energy storage system and solar power : Integration of energy storage system and photovoltaics to an existing system Törnberg, Carl January 2022 (has links) This thesis explores what Karlstad Airport needs to go 100% green. Photovoltaics are assumed to be installed at the facility and a Hydrogen Energy Storage System and Battery Energy Storage System will be evaluated to reduce peaks during charging of the planes. Different power peak limits are explored as well as different sized Energy Storage Systems and later evaluated economically. A method to find the cheapest possible system is created with some assumptions and is then used to evaluate throughout the whole dataset. In the end any of the different sized Energy Storage Systems reduces the profitability when considering each systems expected lifecycle. Annan elektroteknik och elektronik
68	Electrostatic Precipitators and Electrostatic Spray Scrubbers for Mitigation of Particulate Matter Emissions in Poultry Facilities Knight, Reyna Madison January 2021 (has links) No description available. Agricultural Engineering Agriculture Animal Sciences Animals Applied Mathematics Electrical Engineering Engineering Environmental Engineering Environmental Health Environmental Science Experiments Fluid Dynamics Mechanical Engineering Occupational Health Technology Aerosols Air pollution Air quality Animal housing Bioaerosols COMSOL Concentrations Dust Electrostatic precipitation Electrostatic spraying Emission rates ESP ESS Laying hens PM Pollution control Removal efficiency Spray charging
69	Effects of Electrostatic Precipitation Dust Control Technologies and Ultraviolet Irradiation on the Inactivation of Pathogenic Bacteria in Commercial Poultry Layer Houses Herkins, Matthew Joseph 27 October 2022 (has links) No description available. Agricultural Engineering Electrical Engineering Environmental Engineering Microbiology commercial poultry facilities poultry facilities electrostatics electrostatic precipitator electrostatic spray scrubber ultraviolet light ultraviolet irradiation ESP ESS UV airborne pathogen control airborne bacteria control disease control avian diseases air ionization pathogen inactivation high-voltage
70	New modelling and simulation methods to support clean marine propulsion Grant, Michael 24 August 2021 (has links) The marine industry has increased its adoption of pure-electric, diesel-electric, and other non-traditional propulsion architectures to reduce ship emissions and fuel consumption. While these technologies can improve performance, the design of a propulsion system becomes challenging, given that no single technology is superior across all vessel types. Furthermore, even identical ships with different operating patterns may be better suited to different propulsion technologies. Addressing this problem, previous research has shown that if key elements of a vessel's operational pro file are known, simulation and optimization techniques can be employed to evaluate multiple propulsion architectures and result in a better propulsion system design and energy management strategy for a given vessel. While these studies have demonstrated the performance improvements that can be achieved from optimizing clean marine propulsion systems, they rely on vessel operational profiles obtained through physical measurement from existing ships. From a practical point of view, the optimization of a vessel's propulsion system needs to occur prior to a vessel's construction and thus precludes physical measurement. To this end, this thesis introduces a marine simulation platform for producing vessel operational profiles which enable propulsion system optimization during the ship design process. Core subsystem modules are constructed for simulating ship motions in 3 degrees of freedom and result in operational profile time-series, including propulsion power. Data is acquired from a benchmark vessel to validate the simulation. Results show the proposed approach strikes a balance between speed, accuracy, and complexity compared with other available tools. / Graduate model-based design MBD hybrid marine propulsion optimization simulation ship vessel DOF motion propeller torque thrust diesel-electric all-electric EV FES BES PHES HES ESS energy automation autonomous resistance hull ocean current added mass platform CFD hybrid electric batteries ultra capacitors emissions fuel consumption LNG motor engine energy management strategy control power energy wind waves strain coefficient hydrodynamic derivative MMG Maneuvering Modeling Group manoeuvring ferry design electric diesel azimuth thruster podded fouling roughness autopilot

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