Integrated Optic
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Efeitos da musicoterapia na qualidade de vida visual de portadores de neurite óptica desmielinizante
Background: Optic neuritis is an acute inflammatory disease of the optic nerve. Demyelinating optic neuritis (DON) is considered an isolated clinical syndrome because it can occur in the absence of any demyelination of the central nervous system or in association with multiple sclerosis (ON-MS). Visual quality of life (VQL) refers to the subjective perceptio
Publicado em: 2009
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2. Study of the fabrication steps of an electro-thermo-optical device using Mach-Zehnder interferometer. / Estudo das etapas de fabricação de dispositivos eletro-termo-ópticos utilizando o interferômetro Mach-Zehnder.
In this work, a study of the steps to fabricate an electro-thermo-optical device is realized. This device is based in a Mach-Zehnder interferometer (IMZ) where a micro-resistor is placed in one of the IMZ arms. The Mach-Zehnder interferometer was fabricated using Anti-Resonant Reflecting Optical Waveguide (ARROW) where oxinytride and amorphous hydrogenated s
Publicado em: 2008
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3. Modelagem endoscÃpica virtual do monitoramento de equipamentos elÃtricos de alta tensÃo
With the promulgation of the 10.847/2004 and 10.848/2004 Laws, the Brazilian Power Sector started adopting competitiveness as the main element for obtaining concessions in the electric power system transmission and generation sectors. In this sense, the power sector companies will have to strongly intensify the monitoring processes of the power system equipm
Publicado em: 2007
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4. Evaluation of public politics: the itinerary of the exits of the project correction of flow in Toledo (PR) / Avaliação de politica publica : o itinerario dos egressos do projeto correção de fluxo de Toledo (PR)
The present paper aims to establish the itinerary (relating to its educational development and to its insertion in the labor market and in its social project) of egressing students in the Flow Correction Project (FCP), during 1997 and 1998. For this purpose, six central questions have been established: 1) the FCP provides the necessary conditions so that the
Publicado em: 2007
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5. Construção e caracterização de fotodetetores metal-semicondutor-metal (MSM). / Construction and characterization of metal-semiconductor-metal (MSM) photodetectors.
The goal of this work was the fabrication of Metal-Semiconductor-Metal (MSM) photodetectors with the following characteristics: dark current of about 1 nA, responsivity of about 0.1 A/W and dark/photocurrent ratio of at least 10. These values ensure that the photodetectors have enough sensitivity to be used in integrated optic sensors. All materials used in
Publicado em: 2006
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6. Development of integrated optic receiver in HBT technology / Desenvolvimento de receptor optico integrado em tecnologia HBT
Esta dissertação de mestrado descreve o estudo, projeto e implementação de um receptor optoeletrônico integrado (OEIC) utilizando a tecnologia de transistores bipolares de heterojunção (HBT), fabricados a partir do material semicondutor arseneto de gálio. A grande vantagem deste transistor é o seu alto ganho e baixa resistência de base, o qual poss
Publicado em: 2005
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7. Neural activity in the regenerating optic nerve of the goldfish.
1. Retinal ganglion cells of one eye were axotomized in goldfish either by sectioning the contralateral optic tract or by ablating the contralateral lobe of the optic tectum. Between 2 and 40 days later, multiunit activity in response to diffuse light flashes was recorded from the axotomized and normal optic nerves, and from the optic tectum. 2. Two days aft
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8. Localisation of glycoproteins and glycosaminoglycans during early eye development in the macaque.
The composition of the extracellular matrix (ECM) was examined in the developing lens and optic cup (stages 11-16) of the long-tailed monkey (Macaca fascicularis) using peroxidase immunocytochemistry. The glycoproteins, fibronectin, laminin, and collagen types I and IV, were consistently associated with basement membranes (BM) of ocular epithelia at all stag
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9. A search for brain stem cell groups integrating the defence reaction in the rat.
The defence areas of the rat brain stem have been extensively explored using electrical and chemical stimulation in an attempt to locate the regions containing the perikarya of neurones which may initiate or integrate the visceral and behavioural components of the defence reaction. In rats anaesthetized with alphaxalone-alphadolone, a cannula electrode was u
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10. Cell patterning in pigment-chimeric eyes of Xenopus: local cues control the decision to become germinal cells.
Between 2.5 and 4 days of development, cell proliferation in the Xenopus eye becomes confined to a narrow ring of germinal cells at the front rim of the eye cup. Continued growth of the eye (which lasts until well beyond metamorphosis) is by the continued proliferation of cells in this germinal zone. To determine what factor(s) promotes cell division in this