The contents of this dissertation relate to a liquid crystal light valve which is addressed by an electron beam. The light valve has been configured with a computer aided designed optical projection system, to produce an electron beam addressed liquid crystal light valve projector. The projector is capable of turning an electrical signal into a corresponding projected picture. A minimum resolution of 33um was demonstrated in a smectic-A liquid crystal light valve and one of 40um in a dyed phase change guest-host liquid crystal light valve. The diameter of the active area of the light valve was 45mm. Crucial to the realization of the projector was the patented invention and design of an electrically highly anisotropic disc of 47mm diameter which was approximately 2mm thick. The disc, which was conducting through its thickness and insulating across its plane, formed the top interface of the liquid crystal light valve and permitted the electron beam to deposit a charge pattern which could be conveyed to the thin liquid crystal layer without loss of resolution. The disc was made using a specially constructed piece of apparatus wherein the holes in a glass capillary array were filled with a low melting point alloy. Discs were made using three different low melting point alloys and their various merits were considered. Consideration was also given to developing the deflection coils used in this projector. Computer aided design resulted in a deflection coil system capable of a resolution of over 8 x 10<SUP>8</SUP> pixels in a 50mm x 50mm frame at a half angular aperture of 1mrad. In order to evaluate the resolution of the light valve, a micro-computer controlled dot pattern generator was built. This was used to drive the deflection coils in such a way as to control both the dwell time and position of the electron beam spot. Lines of different spacings were written on the light valve. Electron and optical micrographs are presented to demonstrate the quality of the anisotropic disc. Photographs and optical micrographs are included to show the pictures which were obtained from the projector and also the lines written on the light valve.

No description available.

Předkládaná práce se zabývá návrhem projektorové soustavy transmisního elektronového mikroskopu (TEM) pro metodu single particle analysis (SPA). Návrh projektorové soustavy byl vytvořen v programu Electron Optical Design (EOD) verze 4.020. Série buzení jednotlivých čoček pro zvětšení projektorové soustavy v rozsahu od 50 do 10000 byla vypočítaná pomocí přístupu využívajícího aproximaci tenké čočky, dále pomocí přístupu využívajícího aproximaci tlusté čočky, metodou linearního zaostření v programu EOD a metodou nelineárního zaostření v programu EOD ve verzi 5.003. Dosažené výsledky byly porovnány a ověřeny pomocí reálného trasování částic v programu EOD.

Submitted by LUIZ SOARES DOS SANTOS BAGLIE (luizssb.biz@gmail.com) on 2018-07-23T22:54:59Z No. of bitstreams: 1 Disserta__o_Luiz.pdf: 8121427 bytes, checksum: 6d6fc6e77c3675f8bfbb0dd27c3f2c74 (MD5) / Rejected by Elza Mitiko Sato null (elzasato@ibilce.unesp.br), reason: Solicitamos que realize correções na submissão seguindo as orientações abaixo: Problema 01) Está faltando o LOGO (Símbolo)da Universidade/Câmpus no cabeçalho da capa do seu trabalho.(este item é obrigatório), e no rodapé solicitamos tirar os escritos(São Paulo – Brasil, Julho) Problema 02) O arquivo contém 13(treze) páginas em branco, solicitamos a retirada das mesmas. Problema 03) ) Nos agradecimentos consta financiadora CAPES, se você recebeu financiamento da CAPES, deve constar o nome dela também na folha de rosto e de aprovação. Problema 04) Na descrição da natureza da pesquisa faltam algumas informações. Na folha de rosto Dissertação apresentada como parte dos requisitos para obtenção do título de Mestre em Ciência da Computação, junto ao Programa de Pós- Graduação em Ciência da Computação, do Instituto de Biociências, Letras e Ciências Exatas da Universidade Estadual Paulista “Júlio de Mesquita Filho”, Câmpus de São José do Rio Preto. e no rodapé : São José do Rio Preto 2018 E na folha de aprovação, como você defendeu em Bauru, deve ser o local efetivo da defesa: “Dissertação apresentada como parte dos requisitos para obtenção do título de Mestre em Ciência da Computação , junto ao Programa de Pós- Graduação em Ciência da Computação , da Faculdade de Ciências da Universidade Estadual Paulista “Júlio de Mesquita Filho”, Câmpus de Bauru.” e no rodapé : Bauru 06 de Julho de 2018 OBS:-Estou encaminhando via e-mail o template/modelo das páginas pré-textuais para que você possa fazer as correções, sugerimos que siga o modelo pois ele comtempla as normas da ABNT Sua submissão será rejeitada para que você possa fazer as correções. Lembramos que o arquivo depositado no repositório deve ser igual ao impresso, o rigor com o padrão da Universidade se deve ao fato de que o seu trabalho passará a ser visível mundialmente. Agradecemos a compreensão. on 2018-07-24T14:45:12Z (GMT) / Submitted by LUIZ SOARES DOS SANTOS BAGLIE (luizssb.biz@gmail.com) on 2018-07-24T20:39:02Z No. of bitstreams: 1 Disserta__o_Luiz-2.pdf: 8540676 bytes, checksum: 8be2dd495278e34017e4670f776757fd (MD5) / Approved for entry into archive by Elza Mitiko Sato null (elzasato@ibilce.unesp.br) on 2018-07-25T13:39:02Z (GMT) No. of bitstreams: 1 baglie_lss_me_sjrp.pdf: 8553740 bytes, checksum: 17eeffc8fdbf59778d5ffda8f5826a60 (MD5) / Made available in DSpace on 2018-07-25T13:39:02Z (GMT). No. of bitstreams: 1 baglie_lss_me_sjrp.pdf: 8553740 bytes, checksum: 17eeffc8fdbf59778d5ffda8f5826a60 (MD5) Previous issue date: 2018-07-06 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / Visualização de Informação (VI) é uma disciplina focada na exploração, monitoramento e descoberta de informações, colaboração profissional e apresentações de dados compreensíveis. VI 3D pode ser usada para dados inerentemente tridimensionais ou em visualizações que requerem entendimento de formas (e.g., design de automóvel, moléculas). Além disso, interação por meio dispositivos de entrada além de mouse e teclado auxilia a investigação de novas consultas. VI 3D interativa (VI3DI) pode ser desenvolvida com técnicas e recursos da Realidade Virtual, que envolve aplicações 3D com ambientes virtuais, proporcionando imersão, interação e envolvimento. Imersão pode se dar por sistemas de multi-projeção, os quais usam clusters gráficos (CGs); interação pode fazer uso de dispositivos de entrada diversificados. Navegadores web são interessantes para VI3DI, devido a facilidade de execução, portabilidade e recursos disponíveis. O objetivo desta dissertação é, com base no entendimento dos domínios e tendências presentes nos trabalhos científicos em que multi-projeção e dispositivos de interação são utilizados na web, propor, implementar, aplicar e avaliar um design para aplicações VI3DI na web. É realizada uma revisão sistemática da literatura, revelando a falta de estudos e recursos sobre uso de ambos multi-projeção e dispositivos de interação diversificados na web. Assim, propõe-se um design de solução para aplicações VI3DI web, apoiando a multi-projeção por meio de CGs mestreescravo e descentralizado e dispositivos de interação diversificados. O design é implementado em um framework/biblioteca JavaScript, Livvclib, para validá-lo e facilitar seu reuso. Livvclib é usada adicionar suporte a multi-projeção e dispositivos de interação a uma aplicação web de visualização molecular. A aplicação é avaliada por meio de um experimento com 11 participantes junto a sistema de multi-projeção e dispositivos de interação. Resultados mostram aceitação do desempenho do design proposto, de sua implementação, da possibilidade de visualização das moléculas com a multi-projeção e dos dispositivos de interação diversificados. / Information Visualization (IV) is a discipline focused on exploring, monitoring, and discovering information, professional collaboration, and understandable data presentations. 3D IV can be used for inherently three-dimensional data or in visualizations that require understanding shapes (e.g., automotive design, molecules). In addition, interaction via input devices besides mouse and keyboard helps the investigation of new queries. Interactive 3D IV (I3DIV) can be developed with techniques and resources from Virtual Reality, which involves 3D applications with virtual environments, providing immersion, interaction, and engagement. Immersion can be provided by multi-projection systems, which use graphical clusters (GCs); interaction can make use of diversified input devices. Web browsers are interesting for VI3DI, due to ease of execution, portability and features available. The purpose of this dissertation is to, based on the understanding of the domains and tendencies present in the scientific works in which multi-projection and interaction devices are used on the web, propose, implement, apply, and evaluate a design for VI3DI applications on the web. A systematic review of the literature is conducted, revealing the lack of studies and resources on the use of both multi-projection and diversified interaction devices on the web. Thus, we propose the design of a solution for VI3DI web applications, supporting the multi-projection through master-slave and decentralized GCs, and diversified interaction devices. The design is implemented in a JavaScript framework, Livvclib, to validate it and facilitate its reuse. Livvclib is used to add support to multi-projection and interaction devices to a web application for molecular visualization. The application is evaluated in an experiment with 11 participants, a multi-projection system, and interaction devices. Results show acceptance of the performance of the proposed design, its implementation, the possibility of visualization of the molecules with the multi-projection and of the diversified interaction devices.

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 increasing population leads to higher passenger travel demand in Stockholm. The public transport becomes more and more crowded in rush hours. However, passengers carry out decisions usually based on limited traffic information and their travel experience. Passengers cannot take the initiative to avoid crowding based on existing SL traffic information. Real time crowding information (RTCI) research aims to help passenger to have more initiative to plan their travel in metro system, and assist operator to have higher space utilization efficiency. RTCI system contains4 subsystems: projection system, communication system, speaker system and recording system. The practical test was applied in Tekniska Högskolan metro station for two weeks in May 2015 with the permission from SL. The triangle analysis was applied to analyze the impacts of RTCI. The analysiscontains three analysis methods: passenger load data analysis, video record analysis and interview result analysis. The interview result shows RTCI increased round nine tenth of passengers ‘satisfaction and 43% of interviewees thought it was very useful for them. The calculation based on video record and interview result shows that 25% of passengers consulted this information and changed their behaviors on platform. According to the video record, the path became wider and passenger flow became smoother while RTCI system was activated. Passenger distribution was more even in metro based on passenger load data. The number of passengers who got into last unit train increased 8%, and the number in first and second unit train decreased 4% during RTCI practical test. The thesis mainly focused to analyze the impacts of RTCI instead of solving technical challenges. But the technical solution for RTCI system was proposed in thesis. The concept - “Smart Travel” was discussed in chapter11 which mainly considers travel time, crowding information and travel cost as most important factors to passenger.