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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Luz, tempo, espaço : a percepção e a manifestação do fenômeno poético visual na imanência do objeto / Light, time, space : perception and the manifestation of visual poetic phenomenon in the immanence of the object

Barros, Denise de, 1967- 02 December 2015 (has links)
Orientador: Ivanir Cozeniosque Silva / Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Artes / Made available in DSpace on 2018-08-26T18:49:46Z (GMT). No. of bitstreams: 1 Barros_Denisede_D.pdf: 23397025 bytes, checksum: 74b1625ff7ed33c15a4a801a216cc47d (MD5) Previous issue date: 2015 / Resumo: O presente estudo propõe a análise e a fundamentação da linguagem poética percebida nos registros fotográficos quanto à interação entre os fenômenos da luz, do tempo e do espaço. Essa busca esteve presente e evoluiu em sua riqueza de expressão na trajetória dos trabalhos fotográficos realizados entre 2009 e 2014. Inicialmente, essas experiências se fizeram pela interação entre fios de cabelo, a luz ambiente e seu espaço; Depois, bambuzais com suas variações de luz natural. A procura culminou com a aplicação de valores técnicos, estéticos e poéticos ¿ conquistados nos primeiros trabalhos ¿ na investigação da antena de teletransmissão da TV Cultura, localizada na cidade de São Paulo. A fotografia e o vídeo serviram de suporte no registro do objeto e suas manifestações diretas no tempo e no espaço. A interpretação desse material privilegiou as relações compositivas das fotografias, fundamentadas em aproximações com alguns artistas da vanguarda do construtivismo russo (1917-1930) e o concretismo brasileiro representado por Geraldo de Barros no período entre 1940-1950, quando trabalhou suas "fotoformas". Os acasos provenientes das imagens obtidas no decorrer deste estudo até a Antena da TV Cultura surpreendem pelas afinidades inatas aos ângulos de visão, à técnica e aos temas fotográficos comuns do processo de amadurecimento de artistas na década de 1920 / Abstract: This study proposes the analysis and the deepening of poetic language perceived in photographic records on the interaction between the phenomena of light, time and space. This search was present and evolved into its wealth of expression in the trajectory of photographic works made between 2009 and 2014. Initially, these experiences occurred by the interaction between hairs, ambient light and space. Then, bamboo groves with their variations of natural light image effects. The search followed its path with the application of technical, aesthetic and poetic values - studied in the initial works ¿ to the research of the TV Cultura remote transmission antenna, located in São Paulo. Photography and video provided the technology bases to observe and record the object and its direct manifestations in time and space. The interpretation of this material prioritized the composing relations between the images captured in photographs, based on the conceptual approaches of the Russian constructivism¿s avant-garde artists (1917-1930) and Brazilian concretism represented by Geraldo de Barros (1940-1950), when he worked his "photoforms". The results obtained from the images captured during this study to the TV Culture¿s antenna surprise due to the affinities in viewing angles, technique and thematic photographic, subjects of these artists maturation process in the 1920s / Doutorado / Artes Visuais / Doutora em Artes
2

Development of Novel Technologies for Improved Natural Illumination of High Rise Office Buildings

Greenup, Phillip John January 2004 (has links)
Effective daylighting can substantially reduce the energy use and greenhouse gas emissions of commercial buildings. Daylight is also healthy for building occupants, and contributes to occupant satisfaction. When productivity improvements are considered, effective daylighting is also highly attractive financially. However, successful daylighting of sub-tropical buildings is a very difficult task, due to high direct irradiances and excessive solar shading. A device was created that combined effective solar shading and efficient daylight redirection. The micro-light guiding shade panel achieves all objectives of an optimal daylighting device placed on the façade of a sub-tropical, high rise office building. Its design is based on the principles of non-imaging optics. This provides highly efficient designs offering control over delivered illumination, within the constraints of the second law of thermodynamics. Micro-light guiding shade panels were constructed and installed on a test building. The tested devices delivered daylight deep into the building under all conditions. Some glare was experienced with a poorly chosen translucent material. Glare was eliminated by replacing this material. Construction of the panels could be improved by application of mass-manufacturing techniques including metal pressing. For the micro-light guiding shade panel to be utilised to its full potential, building designers must understand its impact on building performance early in the design process. Thus, the device must be modelled with lighting simulation software currently in use by building design firms. The device was successfully modelled by the RADIANCE lighting simulator. RADIANCE predictions compared well with measurements, providing bias generally less than 10%. Simulations greatly aided further development of the micro-light guiding shade panel. Several new RADIANCE algorithms were developed to improve daylight simulation in general.

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