Submitted by Larissa Vitoria Cardoso Cusielo (larissavitoria@id.uff.br) on 2017-05-19T20:30:06Z No. of bitstreams: 3 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Lair Claudio Amorim - Dissertação Final.pdf: 7794942 bytes, checksum: 737051cdd5282eef6c476b1c6c88792f (MD5) Lair Claudio Amorim - Produto Educacional.rar: 11967387 bytes, checksum: bdb97859d86814aa92a9fc852b27f40c (MD5) / Rejected by Biblioteca do Aterrado BAVR (bavr@ndc.uff.br), reason: oi on 2017-05-22T16:24:03Z (GMT) / Submitted by Larissa Vitoria Cardoso Cusielo (larissavitoria@id.uff.br) on 2017-05-22T17:12:24Z No. of bitstreams: 3 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Lair Claudio Amorim - Dissertação Final.pdf: 7794942 bytes, checksum: 737051cdd5282eef6c476b1c6c88792f (MD5) Lair Claudio Amorim - Produto Educacional.rar: 11967387 bytes, checksum: bdb97859d86814aa92a9fc852b27f40c (MD5) / Approved for entry into archive by Biblioteca do Aterrado BAVR (bavr@ndc.uff.br) on 2017-08-21T16:17:50Z (GMT) No. of bitstreams: 3 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Lair Claudio Amorim - Dissertação Final.pdf: 7794942 bytes, checksum: 737051cdd5282eef6c476b1c6c88792f (MD5) Lair Claudio Amorim - Produto Educacional.rar: 11967387 bytes, checksum: bdb97859d86814aa92a9fc852b27f40c (MD5) / Made available in DSpace on 2017-08-21T16:17:50Z (GMT). No. of bitstreams: 3 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Lair Claudio Amorim - Dissertação Final.pdf: 7794942 bytes, checksum: 737051cdd5282eef6c476b1c6c88792f (MD5) Lair Claudio Amorim - Produto Educacional.rar: 11967387 bytes, checksum: bdb97859d86814aa92a9fc852b27f40c (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / Universidade Federal Fluminense. Instituto de Ciências Exatas. Programa de Pós-Graduação em Ensino de Física. Volta Redonda,RJ / O projeto “Física Animada é uma proposta que usa a técnica stop motion para ensinar conceitos da cinemática de maneira mais participativa e divertida para alunos do Ensino Médio, levando os alunos a compreenderem conceitos de deslocamento, posição, velocidade e aceleração, além de desenvolverem habilidades de interpretação de gráficos, tabelas e vetores, e também de relacionar os gráficos da cinemática com o movimento efetuado. Essa técnica consiste na criação do movimento quadro a quadro e existem diversas animações bem conhecidas como exemplos de sua aplicação. Neste trabalho, três etapas foram propostas para a condução do projeto e seguidas durante a aplicação: (i) Criação das personagens em massa de modelar; (ii) Gravação de vídeos com movimentos de velocidade constante e variável; (iii) Análise dos movimentos no vídeo para confrontar o modelo mental com os modelos da mecânica Newtoniana. A pesquisa foi conduzida em uma escola estadual voltada para o ensino de jovens e adultos (CEJA Centro de Educação de Jovens e Adultos) e ao longo do ano 2014 o minicurso foi realizado diversas vezes com diferentes alunos. No projeto foram utilizados dois softwares gratuitos: o MUAN, para a criação dos vídeos, e o Tracker, para a análise cinemática. Ambos possuem uma interface intuitiva e amigável, o que favorece o uso como ferramenta de ensino. Ao longo da aplicação do projeto, foram realizados exames diagnósticos com os alunos antes e após o minicurso de quatro aulas. Além disso, foram entregues questionários para todos os participantes e realizadas entrevistas com os que se voluntariaram a gravar suas impressões sobre a atividade. Verificou-se ainda a validade do projeto visando o aumento do interesse e da motivação dos alunos em se tratando do aprendizado de tópicos em cinemática e mecânica. / The Project “Animated Physics” is a proposal that uses the stop motion animation technique to teach concepts of kinematics in an active and fun way for high school students. This technique consists on the creation of motion frame by frame and there are several well-known animated movies as examples of its application. In this work, three steps were proposed for the project implementation: (i) Creation of characters in putty; (ii) Recording videos with constant and variable speed motion; (iii) Analysis of movements in the video to confront the mental model with Newtonian mechanics models. The research was conducted in a public school focused on youth and adult education (CEJA in Portuguese, Education Center for Youth and Adults) and during the year 2014 a short course was applied several times to different students. The project was performed through two free softwares: MUAN, for the creation of videos, and Tracker, for kinematic analysis. Both have an intuitive and friendly interface, which allows the use as a teaching tool. During the implementation of the project, diagnostic tests were performed with students before and after a short course of four lessons. In addition, questionnaires were applied to all participants and interviews were conducted with those who volunteered to record their impressions on the activity. The aim of this project was to make students understand concepts of displacement, position, speed and acceleration, to develop graphics, tables, and vector interpretation skills, and also to relate kinematics graphics with motion. The validity of the project in order to increase the interest and motivation of students learning topics in kinematics and mechanics was also assessed.

Dans une optique de maximisation de la production et de réduction des coûts d’installation, de maintenance et d’entretien des trackers solaires, qui permettent d’orienter les modules photovoltaïques à haute concentration (HCPV), ces travaux de thèse se focalisent sur l’amélioration de la précision et la réduction du coût de la stratégie de génération de la trajectoire du tracker. Dans un premier temps, un simulateur de tracker HCPV est développé offrant une étude de l’influence de la performance du suivi du soleil sur la production des modules HCPV, permettant ainsi une étude et une comparaison des stratégies de génération de trajectoires. Le simulateur est basé sur un modèle comportemental de module HCPV monté sur tracker permettant de prédire la puissance maximale du module HCPV en fonction de l’erreur de position du tracker face au soleil, de l’ensoleillement direct et de la température. Une première stratégie de commande dite de référence a été implémentée sur ce simulateur. C’est une commande hybride qui repose sur un viseur solaire pour corriger l’erreur de poursuite par un calcul astronomique. Ensuite, afin d’améliorer les performances et de réduire les coûts de cette stratégie, une nouvelle approche sans capteur est développée en se basant sur une méthode d’optimisation du gradient de puissance pour la génération de la trajectoire du tracker. Une étude complémentaire est également exposée afin de mettre en évidence des algorithmes de recherche de la puissance maximale (MPPT) pouvant offrir des temps de réponse suffisamment rapides pour ne pas affecter la qualité de l’évaluation du gradient de puissance. Dans ce contexte, une commande MPPT P&O améliorée par un réseau de neurones à complexité réduite est proposée, assurant un compromis entre précision, simplicité et rapidité / This work focuses on improving the accuracy and on reducing the cost of the tracker generating trajectory strategy, in order to maximize the production and to reduce the installation and the maintenance cost of a solar tracker orienting high concentrated photovoltaic modules (HCPV). Initially, we propose a behavioral modeling of the HCPV module mounted on a dual axis tracker in order to study the influence of the tracking performance on the module power production. Then, this simulator can be used to test control strategies and to compare their performance. Firstly, a classical control strategy is implemented in the simulator. It is based on a hybrid control operating an astronomical calculation to follow the sun path, and a sun sensor to correct the tracking error. A sensorless strategy is proposed in this work to reduce the cost of the HCPV tracker control. This strategy is based on a gradient optimization algorithm to generate the tracker trajectory and to catch the sun path. Tested on the simulator, this strategy presents the same accuracy as the classical strategy while being less costly. The last study proposed in this thesis work concerns maximum power point tracking (MPPT) algorithms, in order to respond to a given problem relating to the practical implementation of gradient algorithm. In this context, we propose an original optimization of the P&O MPPT control with a neural network algorithm leading to a significant reduction of the computational cost required to train it. This approach, which is ensuring a good compromise between accuracy and complexity is sufficiently fast to not affect the quality of the evaluation of the gradient.

The thesis deals with a construction of solar tracker designed from the MayTec Profile System using SEW Eurodrive’s electric actuation and accessories. The work describes the design of a laboratory assignment which uses these elements. In the preface information is provided about the construction of solar trackers on which the thesis is based. The next parts of the text are dedicated to each step of the construction design and its variants. A description of how to activate the drive and the design of the connection scheme are also included as well as the technological and construction evaluation. The conclusion contains an economical evaluation of the whole construction.

Diplomová práce se zabývá optimalizací systému pro sledování letadel, využívaného pro řízení letového provozu. Je popsána metodika vyhodnocování přesnosti sledovacího systému a přehled relevantních algoritmů pro sledování objektů. Dále jsou navrženy tři přístupy k řešení problému. První se pokouší identifikovat parametry filtrovacích algoritmů pomocí algoritmu Expectation-Maximisation, implementací metody maximální věrohodnosti. Druhý přístup je založen na prostých odhadech parametrů normálního rozložení z naměřených a referenčních dat. Nakonec je zkoumána možnost řešení pomocí optimalizačního algoritmu Evoluční strategie. Závěrečné vyhodnocení ukazuje, že třetí přístup je pro daný problém nejvhodnější.

Syftet med denna undersökning är att undersöka hur glanceable feedback kan implementeras i aktivitetsenheter för hundar för att skapa en bättre användarupplevelse och minska den teknologiska störningen i kommunikationen mellan människa och hund. Tidigare studier visar att utvecklingen hos aktivitetsenheter för hundar är långt ifrån lika framgångsrik jämfört med den för aktivitetsenheter för människor (Ramokapane, van der Linden & Zamansky, 2019; Väätäjä et al. 2018; Zamansky; et al. 2019). Väätäjä, et al. (2018) har påpekat vikten av att teknologin bakom aktivitetsenheten, så som mobiltelefoner, inte ska komma mellan hundägaren och hunden. Den får inte agera som ett störningsmoment som distanserar kommunikation eller interaktion mellan hund och människa (Väätäjä et al. 2018). Detta är idag oundvikligt i dagens aktivitetsenheter för hundar då användaren är helt beroende av mobiltelefonens tillhörande applikation (Väätäjä et al. 2018). Genom frågeställningen (Hur kan glanceable feedback appliceras i aktivitetsenhet för hundar för att ge hundägaren direkt information om hundens aktivitet?) undersöks hur glanceable feedback kan appliceras i aktivitetsenheter för hundar och undvika att kommunikation mellan hund och ägare störs med tekniken. Resultatet är aktivitetsenheten Good Boy. Enheten är försedd med en display och ett mekaniskt hjul som byter mellan de olika kategorierna distans/steg, puls/kroppstemperatur, info/kontaktuppgifter och led/lampa. / The purpose of this study is to investigate how glanceable feedback can be implemented in activity units for dogs to create a better user experience and reduce the technological disruption in human-dog communication. Previous studies show that the development of activity units for dogs is far from as successful as activity units for humans (Ramokapane, van der Linden & Zamansky, 2019; Väätäjä et al. 2018; Zamansky et al. 2019). Väätäjä, et al. (2018) have pointed out the importance of the technology behind the activity, such as the mobile phone, unit not coming between the dog owner and the dog. It must not act as a disturbance that distances communication or interaction between dog and human (Väätäjä et al. 2018). This is inevitable in today's activity units for dogs as the user is completely dependent on the mobile phone's associated application (Väätäjä et al. 2018).  The question (How can glanceable feedback be applied in an activity unit for dogs to give the dog owner direct information on the dog's activity?) Investigates how glanceable feedback can be applied in activity units for dogs and avoid that communication between dog and owner is disturbed by technology. The result is the Good Boy activity unit. The unit is equipped with a display and a mechanical wheel that switches between the different categories distance / step, pulse / body temperature, info /contact information and LED/lamp.

Published Article / This study evaluated the difficulty, in terms of usability, of upgrading from one version of a word processor user interface (Microsoft Word 2003) to another (2007). Laboratory-based usability testing involving 23 participants, who had never used Microsoft Word 2007 before, was conducted. All participants used the two versions in a repeated-measures experimental design. A Tobii 1750 Eye Tracker was used for screen recordings during testing. Participants were also required to fill in user satisfaction questionnaires. Results from the usability test showed that, in terms of usability, migrating from an original interface to a completely changed user interface is not easy.

I relation till andra former är banner en av de mest uppskattade annonsformerna. Dock har det utvecklats fenomen så som banner blindness och annonsblockering vilket förhindrar att betraktare tar till sig reklamen och agerar. Syftet med denna studie har varit att undersöka om generation Y registrerar banners på Internet samt hur deras attityder är gentemot banners som annonsform. Detta undersöktes via ett eye-tracker experiment med kompletterande enkät där urvalet var 30 kvinnor och 30 män som studerade i Borås, Sverige. Resultatet blev att kvinnor och män i generation Y registrerar banners, tittar liknande på dem och generellt är attityden mindre positiv mot banners. Undersökningen fann även att innehållet i form av text, placerad till höger samt under huvudinnehållet på en webbsida uppmärksammades av flest. Detta indikerar att utformning av innehåll och placering är av betydelse.

International Telemetering Conference Proceedings / October 23-26, 2000 / Town & Country Hotel and Conference Center, San Diego, California / An advanced electro-optic hybrid rotary joint (EOHRJ) has been developed in Phase II of an AF SBIR effort with Physical Optics Corporation (POC) to replace cable wrap structure for multi-channel rotation-to-fixed (RTF) signal transmission. The EOHRJ meets AFFTC and other range special needs with a generic, high performance, rotary joint solution. At the moment, we have successfully installed and tested the EOHRJ on our KTM tracker system with the following capabilities: 1) able to accommodate hundreds of transmission channels, including electrical power, control, feedback, and low-speed signals; 2) able to accommodate multiple channel, high data rate (over gigabits per second), and bi-directional signal transmission; 3) able to be reliable for harsh environmental operation, adaptive to stringent sized requirement, and accommodating existing electrical and mechanical interfaces. The completed EOHRJ contains three uniquely integrated functional rings. The first and the outmost one is power ring, which provides RTF transmission channels for over 50 high voltage and high current channels. The second and the middle one is low speed electrical signal ring, which provides RTF transmission for over hundred control, feedback, and low speed data signals. The third and the inmost one is optical fiber slip ring, which, incorporating with current advanced signal multiplexing technologies (either time division or wavelength division multiplexing ) is able to provide multiple channel, high data rate, and bi-directional signal transmission. At the moment, the prototype module of the tree-layer EOHRJ has been successfully assembled in Air Force’s tracker system, and is providing a satisfactory performance. This paper presents our joint work on this project.

The CMS Tracker is an all silicon detector and it is the biggest of its kind to be built. The system consists of over 15,000 individual detector modules giving rise to readout through almost 107 channels. The data generated by the Tracker system is close to 650 MB at 40 MHz. This has created a challenge for the CMS collaborators in terms of data storage for analysis. To store only the interesting physics data the readout rate has to be reduced to 100 Hz where the data has to be ltered through a monitoring system for quality checks. The Tracker being the closest part of the detector to the interaction point of the CMS creates yet another challenge that needs the data quality monitoring system. As it operates in a very hostile environment the silicon detectors used to detect the particles will be degraded. It is very important to monitor the changes in the sensor behaviour with time so that to calibrate the sensors to compensate for the erroneous readings. This thesis discusses the development of a monitoring system that will enable the checking of data generated by the tracker to address the issues discussed above. The system has two parts, one dealing with the data used to monitor the Tracker and a second one that deals with statistical methods used to check the quality of the data.

The Salish Sea is a ecologically important coastal region located on the southwest part of British Columbia. Optical measurements were taken using a set of hyperspectral radiometers, the SAS Solar Tracker developed by Satlantic. This sensor is installed on the Queen of Oak Bay ferry, that runs between Nanaimo and Vancouver, as part of the Ferry Ocean Colour Observation Systems (FOCOS) project. We developed a computer program to process the raw sensor data and generate remote sensing reflectance (Rrs) values. This performs similar functions to Prosoft, Satlantic’s own software to process the data. However, we added new features such as an additional preprocessing step to filter the data based on longitude, and new meteorological flag testing and wind speed calculations. The system was tested using Pearson correlation to compare our output with the output from Satlantic Prosoft. Testing helped us identify a few issues, such as adding longitude flags to remove data at the start and end of the trip where the sensor could produce inaccurate results if aiming at land instead of water. Another issue was where the SAS Solar Tracker does not update its pointing angle fast enough when the ferry makes sharp turns and could result in inaccurate data. / Graduate