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The effects of exposure time on the surface microhardness of three dual-cured dental resin cements
(2011-09-01)
This study evaluated the exposure time of light-curing of the polymers used for cementation on microhardness test in different storage times. The polymers (specifically called resin cements) were RelyX ARC, RelyX U100, and ...
Compressive strength of dental composites photo-activated with different light tips
(2013-04-01)
The aim of this study was to evaluate the compressive strength of microhybrid (Filtek™ Z250) and nanofilled (Filtek™ Supreme XT) composite resins photo-activated with two different light guide tips, fiber optic and polymer, ...
Compressive strength of dental composites photo-activated with different light tips
(2013-04-01)
The aim of this study was to evaluate the compressive strength of microhybrid (Filtek™ Z250) and nanofilled (Filtek™ Supreme XT) composite resins photo-activated with two different light guide tips, fiber optic and polymer, ...
Behavior of Layers under Different Light Sources
(Facta-fundacio Arnco Ciencia Tecnologia Avicolas, 2015-10-01)
Light is an important factor in the management of laying poultry. The ideal lamp spectrum that provides the best welfare conditions still needs to be determined. Wavelength and light intensity influence poultry behavior ...
Análise luminotécnica do sistema de iluminação de uma indústria metalúrgica
(Universidade Tecnológica Federal do ParanáMedianeiraBrasilTecnologia em Manutenção IndustrialUTFPR, 2014-01-12)
Artificial lighting developed to simulate natural lighting and has been enhanced to used environments and forms different. The regulatory standards was important enactment lighting for workers´ healthy conditions. This ...
Variation in canopy structure, leaf area, light interception and light use efficiency among Eucalyptus clones
(2020-05-01)
Differences in growth rates between Eucalyptus clones depend on differences in the acquisition of resources, and the efficiency of using resources to produce carbohydrates and grow wood. We examined differences in canopy ...
Photopolymerization devises light intensity relation with physical translucid barriers use
(2020)
Abstract:
Nowadays, the use of halogen or light emission diode (LED) devices in dental attention is constant for almost any oral treatment. The need of providing an adequate light intensity for a correct photopolymerization ...
Manipulador de luz: experimentações em poéticas visuais
(Universidade Federal de Santa MariaBrasilArtesUFSMPrograma de Pós-Graduação em Artes VisuaisCentro de Artes e Letras, 2019-07-08)
This research, in the scope of the visual arts, developed a poetics based on light as
materiality to be manipulated by the artist, to compose spaces of light and visualities
in exhibition environments. The research differs ...
A study of the electroluminescence mechanism in a light-emitting composite produced with PEDOT:PSS, PVA and Zn2SiO4:Mn
(2018-10-01)
Light-emitting composites are materials that combine the light-emitting characteristic of phosphor materials with the solubility of conductive polymers. This paper has the purpose of showing an experimental study on ...
Light pollution: The possible consequences of excessive illumination on retina
(Nature Publishing Group, 2016-02)
Light is the visible part of the electromagnetic radiation within a range of 380-780 nm; (400-700 on primates retina). In vertebrates, the retina is adapted to capturing light photons and transmitting this information to ...