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1	4DOF Quadcopter: development, modeling and control / Quadricóptero 4DOF: desenvolvimento, modelagem e controle. Barbosa, Fernando dos Santos 06 September 2017 (has links) This text presents the development of a four-degree-of-freedom (4DOF) quadcopter prototype that allows the vehicle to rotate around the three axes (yaw, pitch and roll) and linear movement along z-axis (altitude). The goal is to obtain a prototype bench that uses a good amount of components used in commercial quadcopters (sensors and actuators) and use it to apply attitude and altitude controllers, using techniques such as PID, LQR and Sliding-Mode. Starting from the system modeling, its specifications are shown followed by listing the components used, finishing with the development of the controllers and their simulations and applications. / Este texto apresenta o desenvolvimento de um protótipo de quadricóptero com quatro graus de liberdade (4DOF), o qual possibilita a rotação do veículo em torno dos três eixos (yaw, pitch e roll) e o deslocamento ao longo do eixo z (altitude). O objetivo é obter um protótipo de bancada que use a maior quantidade de componentes de um quadricóptero comercial (sensores e atuadores) e usá-lo para a aplicação de controladores de atitude e altitude, utilizando técnicas PID, LQR e Sliding-Mode. Partindo da modelagem do sistema, mostra-se as especificações do mesmo, os componentes utilizados e finaliza-se com o desenvolvimento dos controladores, simulação e aplicação deles. Aeronaves não tripuladas Aeronaves quadrimotoras Control (Systems theory and control) Controle (Teoria de Sistemas e Controle) Quadmotor aircraft Unmanned aerial vehicle
2	4DOF Quadcopter: development, modeling and control / Quadricóptero 4DOF: desenvolvimento, modelagem e controle. Fernando dos Santos Barbosa 06 September 2017 (has links) This text presents the development of a four-degree-of-freedom (4DOF) quadcopter prototype that allows the vehicle to rotate around the three axes (yaw, pitch and roll) and linear movement along z-axis (altitude). The goal is to obtain a prototype bench that uses a good amount of components used in commercial quadcopters (sensors and actuators) and use it to apply attitude and altitude controllers, using techniques such as PID, LQR and Sliding-Mode. Starting from the system modeling, its specifications are shown followed by listing the components used, finishing with the development of the controllers and their simulations and applications. / Este texto apresenta o desenvolvimento de um protótipo de quadricóptero com quatro graus de liberdade (4DOF), o qual possibilita a rotação do veículo em torno dos três eixos (yaw, pitch e roll) e o deslocamento ao longo do eixo z (altitude). O objetivo é obter um protótipo de bancada que use a maior quantidade de componentes de um quadricóptero comercial (sensores e atuadores) e usá-lo para a aplicação de controladores de atitude e altitude, utilizando técnicas PID, LQR e Sliding-Mode. Partindo da modelagem do sistema, mostra-se as especificações do mesmo, os componentes utilizados e finaliza-se com o desenvolvimento dos controladores, simulação e aplicação deles. Aeronaves não tripuladas Aeronaves quadrimotoras Controle (Teoria de Sistemas e Controle) Control (Systems theory and control) Quadmotor aircraft Unmanned aerial vehicle
3	A balancing act: Managing the tension between competitive outcomes and educational development in collegiate athletics Lorenzen, Michael E. 01 January 2010 (has links) (PDF) Student-athletes have the opportunity for significant development that can enhance their undergraduate experience through participation in intercollegiate athletics. The commercial and cultural influence of professional sports has, however, increasingly challenged the efforts of the National Collegiate Athletic Association (NCAA) to maintain a developmental focus. Some college sports, particularly football and men's basketball, are now relied upon to generate revenue, which requires successful outcomes and accountability to commercial interests. The disproportionate influence of those revenue sports on Division I athletic culture challenges the credibility of all collegiate sports as appropriate components of higher education. This case study examines the women's gymnastics team at a large Division I institution, Big State University (BSU), over the course of the 2010 season. BSU Gymnastics has achieved sufficient competitive success that the coaches were subject to similar pressure to that which their football and basketball colleagues experienced. The study is a qualitative investigation of the leadership and mentoring practices of the coaching staff, particularly in regard to their ability to maintain a focus on student-athlete development in the face of external pressure from various stakeholders to prioritize winning. Using control systems theory and a new typology of sport, the researcher interviewed coaches and student-athletes, analyzed BSU's 2010 season, and found that the coaches consistently prioritized the developmental experience of their student-athletes. A significant additional finding of the study is that coaches play a critical buffering role, sheltering student-athletes from influences that might otherwise undermine the beneficial aspects of intercollegiate athletics participation. Higher Education Administration Educational leadership Higher education Recreation Competition College sports Athletes Education Social sciences Athletics Collegiate athletics Competitive outcomes Control systems theory Educational development Leadership Student-athlete development Education
4	Bayes Filters with Improved Measurements for Visual Object Tracking / Bayes Filter mit verbesserter Messung für das Tracken visueller Objekte Liu, Guoliang 20 March 2012 (has links) No description available. 004 Informatik Mathematics and Computer Science Maschinelles Sehen Bayes Filter Objekt Tracking Information Filter Straßen Tracking Sensorfusion farbinvariante Histogramme Quadratwurzel Filter Computer Vision Bayes Filters Object Tracking Information Filter Lane Tracking Sensor Fusion Color Invariant Histogram Square-Root Filter 54.74 50.22 50.23 50.25 AHI 000: Computing Methodologies guided systems} control}

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