Σκοπός της παρούσας Διπλωματικής Εργασίας είναι η ανάπτυξη και εφαρμογή τεχνικών ψηφιακής επεξεργασίας εικόνων με σκοπό την εξαγωγή ασφαλών λογικών συμπερασμάτων σχετικά με τον ουράνιο θόλο και την ατμόσφαιρα, έχοντας σαν αντικείμενο μελέτης φωτογραφίες, συγκεκριμένου μεγέθους και ανάλυσης, που αναπαριστούν τον ουράνιο θόλο σε μια περιοχή και οι οποίες αναπαράγονται ανά τακτικά χρονικά διαστήματα και χρησιμοποιούνται σε βιομηχανικές εφαρμογές. / The scope of this thesis was the development of various methodologies which would include digital image processing algorithms and techniques in order to provide various information about sky and atmosphere measurements, using as input specific images produced by an automated mechanism in pre-provisioned size and analysis. Those images were taken from a specific area periodically.

abstract: As the demand for power increases in populated areas, so will the demand for water. Current power plant technology relies heavily on the Rankine cycle in coal, nuclear and solar thermal power systems which ultimately use condensers to cool the steam in the system. In dry climates, the amount of water to cool off the condenser can be extremely large. Current wet cooling technologies such as cooling towers lose water from evaporation. One alternative to prevent this would be to implement a radiative cooling system. More specifically, a system that utilizes the volumetric radiation emission from water to the night sky could be implemented. This thesis analyzes the validity of a radiative cooling system that uses direct radiant emission to cool water. A brief study on potential infrared transparent cover materials such as polyethylene (PE) and polyvinyl carbonate (PVC) was performed. Also, two different experiments to determine the cooling power from radiation were developed and run. The results showed a minimum cooling power of 33.7 W/m2 for a vacuum insulated glass system and 37.57 W/m2 for a tray system with a maximum of 98.61 Wm-2 at a point when conduction and convection heat fluxes were considered to be zero. The results also showed that PE proved to be the best cover material. The minimum numerical results compared well with other studies performed in the field using similar techniques and materials. The results show that a radiative cooling system for a power plant could be feasible given that the cover material selection is narrowed down, an ample amount of land is available and an economic analysis is performed proving it to be cost competitive with conventional systems. / Dissertation/Thesis / Excel Data with generated plots and some calcs / Raw Data / FTIR csv files for materials / FTIR generated images / IR camera images / Experimental setup images / M.S. Mechanical Engineering 2011

Submitted by Alberto Silva Betzler (a_betzler@yahoo.com) on 2017-06-26T17:30:43Z No. of bitstreams: 1 tese_betzler.pdf: 7923258 bytes, checksum: 4fe67694cac7f7b562eafc89f55cce3b (MD5) / Approved for entry into archive by Flávia Sousa (flaviabs@ufba.br) on 2017-06-28T14:32:11Z (GMT) No. of bitstreams: 1 tese_betzler.pdf: 7923258 bytes, checksum: 4fe67694cac7f7b562eafc89f55cce3b (MD5) / Made available in DSpace on 2017-06-28T14:32:11Z (GMT). No. of bitstreams: 1 tese_betzler.pdf: 7923258 bytes, checksum: 4fe67694cac7f7b562eafc89f55cce3b (MD5) / Pequenos corpos do sistema solar são asteroides, cometas e poeira interplanetária. Os meteoros são produzidos pela interação de velozes grãos de poeira com a atmosfera terrestre. Esses fragmentos de rocha são presumivelmente oriundos dos asteroides e cometas, em passagens próximas da Terra, ou são transportados de outras regiões do sistema solar por processos dinâmicos. Como estes processos não são plenamente conhecidos, é importante a obtenção da maior quantidade possível de parâmetros físicos e orbitais dos meteoros. Dentro desse contexto, será apresentado o esquema de construção e operação de uma estação para detecção de meteoros, equipada com uma câmera ``all sky'' de TV. Este instrumento ajudou a suprir a carência de iniciativas de observação de meteoros no hemisfério sul. As magnitudes dos meteoros detectados pela estação foram bem modeladas por uma q-exponencial, que é uma função oriunda da mecânica estatística não extensiva de Tsallis. Além de sua validade no estudo dos meteoros, as q-distribuições são adequadas para modelar dados populacionais de asteroides, meteoritos e dos lampejos de luz (flashes) gerados pela colisão de meteoroides com massa da ordem de alguns quilogramas com a Lua. Os resultados obtidos das q-distribuições no estudo dos pequenos corpos do sistema solar são discutidos neste trabalho.

abstract: A collection of stories as viewed through the lens of Oulipo methodology. / Dissertation/Thesis / Masters Thesis Creative Writing 2015

Hatchling disorientation after emergence is a major factor impacting sea turtle populations. This study utilized data from over 1,200 Florida Fish and Wildlife Conservation Commission (FWC) Marine Turtle Disorientation Report forms from years 2006 to 2011 to assess changes in the severity and locations of disorientation events and the impact of municipal beach lighting ordinances. While the FWC forms were completed for all sea turtle species observed, this study focused only on loggerhead sea turtles (Caretta caretta). A Disorientation Severity Index (DSI) was derived from the number of hatchlings and the direction of their tracks leaving the nests to evaluate the changes in disorientation over six years in Broward County. The FWC forms provide a much larger database for the analysis of hatchling disorientation patterns and trends than can be derived from the more precise, but labor intensive, Hatchling Orientation Index (HOI) survey method of Witherington et al. (1996). This research differs from prior work by focusing on the information provided in the FWC Marine Turtle Disorientation Report forms; using each individual disorientation to assess changes in the severity of hatchling disorientations over time. Prior work has not used the FWC forms for analysis. Significant differences were found for average DSI between years and locations. Overall, DSI decreased significantly from 2006 to 2011 in Hillsboro Beach, Pompano Beach, Lauderdale-by-the-Sea, Fort Lauderdale, and Hollywood. This might be due to increased compliance with lighting ordinances. In addition, disorientation hotspots were identified and the DSI in these hotspots decreased significantly in central and south Fort Lauderdale, Pompano Beach, and Lauderdale-by-the-Sea. Hotspots were visually identified as R-Zone ranges with higher numbers of disorientations than in other ranges (Fig. 6). Artificial beach illumination is very prevalent in Broward County. However, there was no significant relationship between the number of types of lights that were recorded on the FWC forms and DSI. Disorientations seemed to be clustered within hotspots with known lighting issues. Management strategies should use these analyses to reassess loggerhead recovery plans to reduce disorientation hotspots and increase hatchling recruitment.

143 Abstract The present diploma thesis is dedicated to European civil aviation and in particular to the regulation of provision of air navigation services and air traffic management. The purpose of the thesis is to analyse the evolution of the legislative reform of air navigation services and air traffic management in Europe with a focus on the influence of European Union law through the initiative "Single European Sky". Next, the thesis aims to study the main elements of the modernisation efforts and to point at the transformation of the situation and relationships between the relevant stakeholders as results from the new form of the regulatory and institutional framework. First chapter presents the principle of state sovereignty over the airspace which constitutes the fundamental principle of aviation law. Second chapter treats air navigation services and the legal regulation of their provision according to the Convention on International Civil Aviation. The following chapter introduces the summary of main organisations involved in civil aviation focussing on ICAO, EUROCONTROL, European Union, its status, the systematics of EU law and on the European Aviation Safety Agency. The fourth chapter discusses the EU common transport policy in the field of air transport, the progressive air transport...

This mini-thesis is situated in the discourse on patriarchy, nationhood and its artistic forms. It is argued that an uncritical pursuit of commonality as a political aesthetic strategy for dance in South Africa repeats the metaphysical foundationalism of this discourse. It is further suggested that a postmodern ethos subverts this heritage, while at the same time offering a viable alternative for accommodating and representing the cultural diversity and plurality characteristic of current theatre dance in South Africa. Chapter One examines the way dance has historically structured its patriarchal form the postmodern discourses Chapter Two as a site and practice through explores the potential of deconstruction and destabilisation of this dance heritage. This chapter also assesses the relevance of a postmodern alternative in a South African dance context. Chapter Three analyses the postmodern choreographic strategies of two South African choreographers, Gary Gordon and Robyn Orlin, in order to reveal how their dance vision to patriarchal aesthetic form and offers an uncritical alternative notions of commonality. In conclusion, it is argued postmodern ethos embodied in the work that the of these choreographers provides viable directions for formulating and articulating new dance directions for theatre dance in South Africa while, at the same time, bearing witness to the diversity that will always structure expressions of commonality in South African dance.

Thesis analyses present status of air traffic management in European area from historical and legislative point of view. Subjects of thesis are present projects in ATM and future variants of organization of air traffic in EU. Practical part focuses on impact of ATM on air transportation.

Thesis is amimed at transport, its development within European union and finally EU transport policy. It focuses on specific issues and strategies that affect all european countries such as development of Trans-European Transport Network.

Nowadays, electricity production from photovoltaics power plants is becoming important increasingly. In order to set production to other power plants, it is necessary to predict the generation of electricity from these sources. The thesis is mainly devoted to models for short-term prediction, which is based on weather forecast. The models were designated by beta regression and linear regression with transformed explanatory variable. One part of thesis is devoted to Clear sky model, which is used to estimated the maximum possible production at given hour. 1