Navegando por Assunto "Lighting"

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Acesso aberto (Open Access)
Dia da Iluminação: uma relação entre a vida e a morte
(Universidade Federal do Pará, 2016-12) REIS, Maria do Socorro Braga
This video shows therelationshipof a family to the Day ofenlightenment (dayof deads). Beliefsrelatedtodeathandlife. Whichbringsthem, annually, topay a visittotheirdeadandtheir memories. The factsandcustomsthatintertwine, often a family meeting, rareoftenhappens a year. In a dayofNovember 2016, fromthelogicofbeliefaboutdeathandlife. Thisvideo uses as field, thecemetery, in a momentthatthefamilyof Mr. Antônio da Cunha Siqueira and its relatives come topayvisittheirdeads. Located in theold Santa Rosa de Lima Cemetery, in downtown city of Bragança, Pará. A CANON machine, model T3i, wasusedto capture theimages.
Acesso aberto (Open Access)
Elementos de sensores de eletricidade atmosférica
(Universidade Federal do Pará, 2010-05-18) PEREIRA, Carlos Simões; ROCHA, Brigida Ramati Pereira da; http://lattes.cnpq.br/9943372249006341
The electromagnetic environment surrounding the planet Earth has a fundamental role in the preservation and development of the living creature, and perhaps the last frontier of human knowledge to be dominated completely, before we ventured to the space outside in search of new opportunity outside. This environment is only now being tamed and best known, and this endeavor has as lynch pin the use of appropriate sensors that can detect and quantify these electrical effects, to serve as a basis for the generation of theories, to explain the underlying phenomena, including in this, the sensors of atmospheric electricity. This work intends to make a comprehensive analysis of these sensor’s systems of atmospheric electricity in use today, evaluating their models of operation, its limitations and its intelligence, and producing a summarized basic specifications for development of better sensors and setting standards for metric types of the variables to be measured, to cope with the currents and future demands in this field of knowledge. Additionally, the processes involved in the calibration of these sensors will be addressed with a review of computational model based on the method of moments (MoM) and other that my be used for evaluation of electromagnetic fields emitted by remote charges patterns and electrical currents, which serve to support and basis for these calibrations.