Optic Properties
Mostrando 1-12 de 84 artigos, teses e dissertações.
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1. Relationships between corneal biomechanics and the structural and functional parameters of glaucoma damage
RESUMO Objetivo: Investigar as relações entre (i) espessura da camada de fibras nervosas da retina, topografia do nervo óptico e parâmetros do campo visual e (ii) propriedades biomecânicas da córnea, em controles normais e pacientes com hiperten são ocular e glaucoma primário de ângulo aberto. Métodos: Este estudo observacional, transversal, incl
Arq. Bras. Oftalmol.. Publicado em: 25/11/2019
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2. Use of Idebenone for the Treatment of Leber’s Hereditary Optic Neuropathy
Abstract Leber’s hereditary optic neuropathy (LHON) is one of the most frequent mitochondrial disorders. It is caused by mutations in genes of the mitochondrial DNA coding for subunits of the respiratory chain and leads to severe bilateral vision loss, from which spontaneous recovery is infrequent. Retinal ganglion cells show a selective vulnerability to m
J. inborn errors metab. screen.. Publicado em: 16/05/2019
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3. Extremely high Faraday and Kerr rotations and extraordinary optical transmission in four-layer dielectric-metal strips-dielectric-Bi:YIG planar structure
Abstract Faraday and Kerr effects as well as the extraordinary optical transmission in a structure that combines magneto-optical and plasmonic properties are studied. The planar structure consists of four layers, namely, dielectric layer, metal strips, once again dieletric layer and magneto-optic one. The magneto-optical layer is magnetized by a DC magnetic
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2018-03
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4. Effect of pH on Optic and Structural Characterization of Chemical Deposited AgI Thin Films
AgI thin films were grown on amorphous commercial glass substrates with chemical bath deposition (CBD) at different pH values (2, 3, 4, 5, 6), 6 hours deposition time and 60 °C. The structure of the nanocrystals was characterized by X-ray diffraction (XRD). The ratio of Ag+ and I- ions changed the crystalline structures. The presence of the Ag+ ions produce
Mat. Res.. Publicado em: 31/08/2017
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5. Structure and Physical Properties of the LaBiFe2O6 Perovskite Produced by the Modified Pechini Method
In this paper the synthesis of the LaBiFe2O6 material by the modified Pechini method is reported. Structural, morphologic, magnetic and optic experimental studies were performed. Rietveld refinement of x-ray diffraction patterns revealed that LaBiFe2O6 crystallizes in an orthorhombic perovskite structure (space group Pnma, # 62). Scanning electron microscopy
Mat. Res.. Publicado em: 24/07/2017
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6. The Effect of TiO2-SiO2 Nanocomposite on the Performance Characteristics of Leather
In this study the effect of TiO2-SiO2 nanocomposite on various performance characteristics of finished leather was investigated. For this purpose, TiO2-SiO2 nanocomposite was prepared via the sol-gel method from tetraethoxysilane (TEOS) and titanium n-butoxide (TBO) catalyzed with acid at ambient temperature. The prepared composite was applied by spraying on
Mat. Res.. Publicado em: 22/06/2017
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7. Microstructure and Mechanical Properties of Borided Inconel 625 Superalloy
ABSTRACT The Ni- based superalloy Inconel 625 is extensively used owing to its high strength, excellent fabricability, good weldability and outstanding resistance to high temperature corrosion against aggressive environments. However, despite its unique properties and extensive use, its wear resistance is in some cases unsatisfactory. In this study, Inconel
Matéria (Rio J.). Publicado em: 22/06/2017
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8. Bifunctional Porous SiO2 Complex Nanoparticles with Properties of Enzymatic Catalysis and Optical Oxygen Sensing
The porous fluorescent SiO2 nanoparticles encapsulating photosensitizer Ru(bpy)3Cl2were prepared by Stöber method and used as a carrier to immobilize glucose oxidase (GOD) to form the bifunctional porous SiO2 complex nanoparticles (BPSCNp) with the properties of enzymatic catalysis and optical oxygen sensing. The optimal immobilization conditions are as fol
J. Braz. Chem. Soc.. Publicado em: 2015-09
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9. Hacia una reducción del contenido decobre en pinturas antiincrustantes
ABSTRACTBiofouling leads to deterioration of any submerged material. The most widespread method for control is the application of cuprous oxide antifouling paints which are toxic. For this reason non-toxic natural products could be combined with small amounts of copper to diminish its contribution to the environment.Thymol is isolated from essential oils of
Matéria (Rio J.). Publicado em: 2015-09
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10. Effects of nitric oxide on magnocellular neurons of the supraoptic nucleus involve multiple mechanisms
Physiological evidence indicates that the supraoptic nucleus (SON) is an important region for integrating information related to homeostasis of body fluids. Located bilaterally to the optic chiasm, this nucleus is composed of magnocellular neurosecretory cells (MNCs) responsible for the synthesis and release of vasopressin and oxytocin to the neurohypophysis
Braz J Med Biol Res. Publicado em: 2014-02
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11. Estudo das propriedades eletro ópticas de filmes finos de nitreto de índio nanoestruturado e de sua aplicação em dispositivos fotônicos e opto eletrônicos. / Study of electro optic properties of nanostructured indium nitride thin films and aplication in opto electronics and photonics devices.
O nitreto de índio (InN) e seus derivados (como o oxi-nitreto de índio) são materiais com alta potencialidade de aplicações em dispositivos optoeletrônicos devido às suas propriedades ópticas e eletrônicas. Para o InN foi obtido originalmente um band gap em torno de 1,9 eV e, apesar deste valor aparecer com freqüência na literatura, têm se obtido
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/08/2011
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12. Uma avaliação sobre características espaço-temporais baseadas em invariantes de cor para reconhecimento de ações
Local spatiotemporal feature has been proved to be a powerful tool to represent latent patterns of moving objects in video scenes. In particular, recognition of human actions has been the principal focus for various growing applications, including video indexing, content-based video retrieval, video summarization, filtering of unwanted content, rating of mov
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/06/2011