Buscar
Mostrando ítems 11-20 de 1593
Terapia Fotodin??mica Antimicrobiana na Odontologia
(Elsevier, 2019)
Encapsulants for light-emitting diodes from visible light-cured epoxy monomers
(Wiley, 2013-01-16)
During the last decade, light-emitting diodes (LEDs) have replaced incandescent, fluorescent, and neon lamps due to their ability to produce high luminosity at low currents and voltages. LEDs are currently encapsulated by ...
Fast and cost effective fabrication of microlens arrays for enhancing light out-coupling of organic light-emitting diodes
(Elsevier Science, 2019-10)
The efficiency of organic light-emitting diodes (OLEDs) deposited on flat substrates is strongly limited by the total internal reflection at the air-substrate interface. An effective strategy to reduce the amount of substrate ...
Effect of curing time on the bond strength of a bracket-bonding system cured with a light-emitting diode or plasma arc light
(European Orthodontic SocietyPorto Alegre, 2011)
The purpose of this study was to assess the influence of two light units, a light-emitting diode (LED) and a plasma arc light (PAC), on the shear bond strength (SBS) of brackets bonded to enamel. Ninety bovine teeth were ...
Effect of curing time on the bond strength of a bracket-bonding system cured with a light-emitting diode or plasma arc light
(European Orthodontic SocietyPorto Alegre, 2011)
The purpose of this study was to assess the influence of two light units, a light-emitting diode (LED) and a plasma arc light (PAC), on the shear bond strength (SBS) of brackets bonded to enamel. Ninety bovine teeth were ...
Extraction of 2′-O-apiosyl-6′-O-crotonic acid-betanin from the ayrampo seed (Opuntia soehrensii) cuticle and its use as an emitting layer in an organic light-emitting diode
(Royal Society of Chemistry, 2020)
The molecule 2′-O-apiosyl-6′-O-crotonic acid-betanin (called Achkiy) was obtained after an ecofriendly and low-cost purification process of the extract from the ayrampo seed cuticle. Results from EDS give us an idea of the ...
Luminária de LED com controle automatizado de luminosidade
(Universidade Tecnológica Federal do ParanáCornelio ProcopioEngenharia Elétrica, 2013)
This paper has as its main target the creation os a luminaire that uses as illumination source light emitting diodes (LED) and has an automatic brightness control in accordance with the brightness already existent in ...
An analysis of frequency response on OLED for lighting applications
(Universidade Federal do PampaUNIPAMPAEstados unidos, 2018)