Image Transmission
Mostrando 25-36 de 99 artigos, teses e dissertações.
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25. Quantitative analysis of high resolution transmission electron microscopy : study of roughness and interdiffusion of interfaces of InGaP/GaAs quantum wells / Analise quantitativa de imagens de microscopia eletronica de transmissão de resolução atomica : aplicação ao estudo da rugosidade e interdifusão em interfaces de poços quanticos de InGaP/GaAs
A completa caracterização de novos fenômenos físicos e químicos em sistemas com dimensões nanométricas requer conhecimento detalhado: a) do arranjo atômico; b) de como os diferentes elementos químicos dos materiais se redistribuem nas interfaces/superfícies (rugosidade, interdifusão, etc.); e finalmente c) como os dois primeiros fatores modificam
Publicado em: 2008
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26. Analysis of participation of energy self producers and independent producers in the Brazilian electric sector. / Análise da participação dos autoprodutores e produtores independentes de energia no setor elétrico brasileiro.
Historically, the electric power supply in Brazil has a role that stands out in the domestic economic growth, due to its capacity to add revenue through the promotion to large-sized industries. Its strong association in the composition of the domestic revenue is of general concern of all individuals involved and interested in the power supply in Brazil, whic
Publicado em: 2008
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27. Efeitos da inibição da protoporfirinogênio IX oxidase sobre as trocas gasosas e fluorescência da clorofila a em plantas de soja (Glycine max L. Merrill) / Effects of inhibition of protoporphyrinogen oxidase IX on gas exchange and chlorophyll fluorescence of soybean plants (Glycine max L. Merrill)
The photosynthetic fixation of CO2 depends on the capture of light energy by the harvest complex (chlorophyll b and carotenoids), which transfer the energy to the photosystems reaction centers (chlorophyll a). The electrons transfer chain established between the photosystems generates reducing power necessary for the CO2 fixation in the Calvin cycle. The int
Publicado em: 2008
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28. Color-based image retrieval using discrete distribution features analysis / Recuperação de imagens por cor utilizando analise de distribuição discreta de caracteristicas
Advances in data storage, data transmission, and image acquisition have enabled the creation of large images datasets. This has spurred great interest for systems that are ablc to efficicntly rctricve images from these collections. This task has been addressed by thc so-called Content-Based Image Retrieval (CBIR) systems. ln these systems, image content is r
Publicado em: 2007
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29. O impacto de novas tecnologias de informação no processo de criação publicitária
The present work discusses on how new information technologies privilege and make the use of file/archive images easy within the marketing creative process today. This study aims at digital image data as well as understanding how they have come up, developed and currently impacted on the marketing creative process. Moreover, how the new information technolog
Publicado em: 2007
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30. Double diffraction white light imaging without intermediary elements / Imagem por dupla difração com luz branca sem elementos intermediarios
We present the analysis of the formation of images by diffractive elements using white light by performing ray-tracing through main directions. The first system we describe is composed of two diffraction gratings and a slit, the second by two bi-dimensional spiral elements and a hole aperture, generating ortoscopic (natural relief) images. From this we had f
Publicado em: 2007
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31. Architecture, text and image: the rethoric of representation in architectural competitions / Arquitetura, texto e imagem: a retórica da representação nos concursos de arquitetura
This research pursuits a new understanding on relevant moments of the history of architectural competitions in Brazil, by the premise that these are events that render interest for they provide a kind of information that reflects each specific moment of the architectural production. It discusses the importance of representation in the development of the arch
Publicado em: 2007
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32. Análise de conteúdo de vídeo por meio de aprendizado ativo
Advances in compression techniques, decreasing cost of storage, and high-speed transmission have facilitated the way videos are created, stored and distributed. As a consequence, videos are now being used in many applications areas. The increase in the amount of video data deployed and used in today s applications reveals not only the importance as multimedi
Publicado em: 2007
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33. Synthesis and characterization of nanostructured iron power for environmental remediation / Estudo do comportamento químico do ferro micro e nano particulado na despoluição de solos contaminados com metais pesados
The nanostructured iron has been of very interest because of their excellent chemistry properties and potential applications in areas as biomedical, catalysis and environmental engineering. One of expressive applications is its use as a catalyst for CVD synthesis of multi-walled carbon nanotubes and in remediation of contaminants from wastewater and soil. Th
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/12/2006
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34. Effect of age on upper and lower eyelid saccades
To study the effect of age on the metrics of upper and lower eyelid saccades, eyelid movement of two groups of 30 subjects each were measured using computed image analysis. The patients were divided on the basis of age into a younger group (20-30 years) and an older group (60-91 years). Eyelid saccade functions were fitted by the damped harmonic oscillator m
Brazilian Journal of Medical and Biological Research. Publicado em: 07/11/2006
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35. O uso de casos históricos no ensino de física : um exemplo em torno da temática do horror da natureza ao vácuo
The role of history of science in science education in the elementary level has caused many points of view. Even though there is no consensus on the matter, these points of view have oriented the use of science in education. The purpose of this presentation is to bring up this discussion assuming a position about the role of history of science in science edu
Publicado em: 2006
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36. Retratos de Goiás: memórias de ex-militantes estudantis goianos sobre a década de 1960
In the early 1990s, the student movement in the State of Goiás was retaken with the publishing of former movement leaders memories, focusing on the period of action (the 1960s), and of political agents in the present of remembering (the 1990s). Firstly, interviews made by researchers from the Universidade Federal de Goiás History Department under the guida
Publicado em: 2006