Made available in DSpace on 2016-08-10T10:47:44Z (GMT). No. of bitstreams: 1 BRUNA CASTANHEIRA DE FREITAS.pdf: 3686133 bytes, checksum: 0e11fb62e9737a140ce2a4ce454e6ec9 (MD5) Previous issue date: 2016-02-23 / This paper aims to map how 3D printing is already affecting and will affect intellectual property. In Chapter 1, we trace the historical development of intellectual property as well as the philosophical justifications for this related to the development of technologies that work with content (music and movies) such as the internet. Therefore, we make analogies with this case in order to capture insights that can guide the analysis regarding the relation intellectual property and 3D printer . Chapter 2 lends itself to analyze the 3D printer and its development in the market; there are also reflections on the Maker Movement, Open Source Hardware licenses and the environmental effects of this technology. Chapter 3 analyzes cases that have already occurred involving 3D printers and intellectual property, analyzing how this technology further enhances the problem of the performance of intellectual property in the XXI century. / O presente trabalho objetiva mapear de que forma a impressão 3D já afeta e afetará a propriedade intelectual. No Capítulo 1, traça-se o desenvolvimento histórico da propriedade intelectual, bem como as justificativas filosóficas para esta em face do desenvolvimento de tecnologias que trabalham com conteúdos (músicas e filmes) como a interent. São feitas assim analogias com este caso de forma a capturar insights que possam nortear análises a respeito da relação propriedade intelectual e impressora 3D . O Capítulo 2 se presta a analisar a impressora 3D e o seu desenvolvimento no mercado; há também reflexões a respeito do Movimento Maker, licenças Open Source Hardware e os efeitos ambientais desta tecnologia. O Capítulo 3 analisa casos que já ocorreram envolvendo a impressora 3D e propriedade intelectual, analisando-se de que forma esta tecnologia problematiza ainda mais o desempenho da propriedade intelectual no século XXI.

The goal of this diploma thesis is to analyze the buyer's decision process in the printer market for household. The most important of the theoretical part is the description of the whole process. The thesis is also focused on the different views on the buyer's decision process, description of factors, which influence the decision flow and on different types of the process. In the analytic part is the main attention sticked at the research of buyer's decision process in the printer (multifunction) market for households. It is based on questionnaire survey. Summing up and marketing recommendations are mentioned at the end of the thesis.

Identificação de Dispositivos por Radiofrequência, do inglês, Radio Frequency Identification Device (RFID), é uma tecnologia para identificação, rastreamento e gerenciamento de produtos, animais e até mesmo pessoas sem a necessidade de um campo visual. Com o objetivo de alcançar custos menores e a utilização de processos de fabricação menos agressivo ao meio ambiente, tornou-se importante o desenvolvimento de novos tipos de etiquetas (tags). Em vista disso, a fabricação de antenas impressas compactas usando tinta condutiva, representa uma boa opção. O objetivo dessa pesquisa é o projeto e fabricação de antenas impressas sobre substratos flexíveis utilizando tinta condutiva composta de nanopartículas de prata. O desenvolvimento deste tipo de etiquetas é justificado principalmente pelos seguintes motivos. Primeiro, o processo reduz o uso de agentes químicos comumente empregados na fabricação convencional, levando a uma significativa redução no impacto ambiental. Segundo, a fabricação utilizando substratos como, por exemplo, papel ou polímero, reduz substancialmente o custo final da etiqueta. Estudos teóricos e práticos, juntamente com simulações eletromagnéticas foram realizados. Dois processos de prototipagem da etiqueta foram executados: um utilizando uma impressora jato de tinta que funciona propelindo gotas de tinta sobre o substrato e o outro utilizando serigrafia ou silkscreen printing que é muito prático para imprimir formas geométricas através de uma tela de fios trançados. Esses métodos de impressão permitiram a produção rápida da antena sem a necessidade de máscaras de fotolitografia, como é amplamente utilizado na indústria eletrônica. Quatro protótipos foram produzidos e medidas foram realizadas para verificar a viabilidade da utilização dessas etiquetas impressas em relação à sua operação, a confiabilidade das informações armazenadas e a troca de dados com o leitor RFID via interface aérea. Os resultados práticos foram comparados com os obtidos de etiquetas comerciais, onde foi possível verificar que a antena fabricada com tinta condutiva é capaz de capturar e radiar ondas eletromagnéticas de forma eficiente, resultando em uma troca de dados confiáveis através da interface aérea. / Radio Frequency Identification Device (RFID), it is a technology using electromagnetic waves for identifying, tracking and management of products, animals and even people without requiring a visual field. Aiming at achieving low costs and using less aggressive manufacturing processes to the environment, it has become important to develop new types of RFID tags. In view of that, manufacturing compact printed antennas using conductive ink represents a good option. The goal of this research is the design of printed antennas on flexible substrates using silver nanoparticles ink. The developing of this type of tags is justified mainly by the following reasons. First, the process reduces the use of chemical agents commonly employed in conventional manufacturing leading to a significant reduction of the environmental impact. Second, the fabrication using substrates such as paper and polymer foils, substantially reduces the final cost of the tags. Theoretical and practical studies along with electromagnetic simulations were conducted. Two process of RFID prototyping were performed: one using an inkjet printer that operates by propelling particles of conductive ink onto the substrate and another using silkscreen printing that is a very practical method to print geometric forms through a twisted wires screen. These technologies allowed fast production of the antenna without requiring photolithographic masks, as it is widely used in the electronics industry. Four prototypes were produced and measurements were taken to verify the feasibility of using RFID tags printed with conductive ink regarding to its operation, reliability of the stored information and the exchange of data with the RFID reader via air interface. Practical results were compared with those obtained of the commercial tags. It was possible to verify that the antenna manufactured with conductive ink was able to capture and radiate efficiently electromagnetic waves, resulting in reliable exchange of data with the reader through the air interface

Made available in DSpace on 2016-12-12T20:32:02Z (GMT). No. of bitstreams: 1 Dissertacao Jose Vicente Martins.pdf: 276381 bytes, checksum: 9e0d2ec1f15d0a7ab920acdfeda7d95e (MD5) Previous issue date: 2007-05-31 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / This work presents results from a study and quantitative research over how the multifunctional printer systems maintenance technicians qualification process may contribute for the increment of the user satisfaction in its respective sector. A questionnaire containing 24 questions was applied to 16 company representatives. Users, who were previously selected, were also interviewed. The results are compared to the theoretical recital concerning the technical team attendance into the sales process and after that, as well as the way as it may influence better equipment functioning; and the potential this attendance has to become a marketing instrument. As it may be noticed, the good quality technical service may assume an essential part, in the present context, considering technologies, which represents a more and more constant challenge. / Este trabalho apresenta resultados de um estudo e pesquisa quantitativa sobre como o processo de capacitação dos técnicos de manutenção de equipamentos multifuncionais de reprografia pode contribuir para o incremento da satisfação do usuário do setor. Um questionário contendo 24 perguntas foi aplicado a 16 representantes de empresas bem como, entrevistas com usuários previamente selecionados. Os resultados são comparados à fundamentação teórica referente ao atendimento do corpo técnico durante e pós-venda, a influência que tem para o bom funcionamento dos equipamentos, a capacidade de se transformar em um potencial de marketing de vendas. Percebe-se que o atendimento técnico de boa qualidade pode ser de importância fundamental para o presente momento, considerando-se o rápido desenvolvimento e o surgimento de novas e avançadas tecnologias, o que se torna um desafio cada vez mais constante.

The aim of this diploma thesis is to identify, propound, create and verify own educational models and aids usable for teaching physics. Models and aids are selected according to the Framework Educational Program for the second grade of elementary school. Models already created are verified and described, alternatively modified.

Stereolithography printing is one of the most popular 3D printing technologies. This printers use a UV light source for photopolymer curing and can be used for a wide range of applications with high precision and excellent print quality. Commercially available printers do not allow the modifications of the optical and mechanical parameters of the instrument. For this reason, a DLP printer has been designed to allow the optical system modifications and thus changing the printing field and resolution. Another advantage is the possibility to modify already designed mechanical parts. The DLP printer has been designed and tested. The recommended printer parameters settings are listed, which are based on the performed experiments.

The content of the thesis is the modeling and implementation of the CNC control algorithm. This master thesis contains the description of issues of computer-controlled machines, the research of interpolation algorithms for control CNC machines and the modeling of the selected control algorithm with motor S-curve shaped speed profiles and simulation of chosen algorithms with S-shaped speed profiles in Matlab & Simulink.

This thesis deals with mechanical design of FDM 3D printer with a built-in material feeder with monitoring of remaining material. The aim of this thesis is designing the FDM 3D printer with minimum print volume of 200x200x200 mm and with usage of measured data for optimising the 3D printing process. This 3D printer is targeted to the non-experienced users, so the emphasis was on ease of use and reliability of the printer. Despite the fact that it is an innovative design solution, the suitability of the design was verified experimentally as part of this thesis. The choice of the material feeder design, which is essential for the presented thesis, was justified by the realization of prototypes of two suitable designs, from which the optimal solution was chosen. The knowledge obtained from testing the prototypes was then used for the final design of 3D printer. The usage of data for optimization of the printing process is realized by a C++ compatible source code that is a part of this thesis.

The aim of the work is to design and manufacture a mechanism for setting up and clamping the replaceable head of a 3D FDM printer. The first part of the thesis deals with 3D printing in general, the second part describes the FDM method. Part three is devoted to the selection and construction of a suitable 3D printer, the fourth part to the actual design of the head attachment. In the fifth part, a technical and economic evaluation is carried out.

This thesis was created as a bachelor project in the Faculty of Mechanical Engineering at VUT in Brno. In the theoretical part, the additive technology Rapid Prototyping is introduced together with the most common methods, followed by the assessment of advantages and disadvantages of the new technology and its possible uses in various fields of human activity. In the experimental part of the diploma thesis was assembled and the printing parameters were set. Consequently the comparison models were printed on the 3D home printer and on professional printer Dimension uPrint. The accuracy of the printers is compared. The thesis concludes with the analysis of technical and economical parameters.