Bio Optical
Mostrando 1-12 de 34 artigos, teses e dissertações.
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1. Inverse Design of Tapers by Bio-Inspired Algorithms
Abstract The efficiency of optical power transferred between two bidimensional waveguides, continuous waveguide and periodic subwavelength waveguide has been designed and optimized by using a taper composed by variable length segments (0.03 − 0.27 µm). Waveguides with variable width (270 − 330 nm) have been considered and the number of segments on the t
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2020-03
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2. (Bio)conjugation Strategies Applied to Fluorescent Semiconductor Quantum Dots
Quantum dots (QDs) are semiconductor nanocrystals, which present unique photophysical properties, enabling their application as new fluorescent platforms for biomedical sciences. Colloidal QDs are end-capped with organic or inorganic compounds, not only to prevent their agglomeration but also to provide reaction sites for the attachment of targeting (bio)mol
J. Braz. Chem. Soc.. Publicado em: 24/10/2019
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3. PCL/ZnO Bio-friendly Films as Food Packaging Material.Thermal and morphological analysis
ABSTRACT Films of Poly(?-caprolactone) (PCL) and PCL/Zinc Oxide (ZnO) were obtained by solution processing. Thermal behaviour and morphological structure were analysed by means of Thermogravimetry (TGA), Differential Scanning Calorimetry (DSC), Optical Microscopy (OM) and Scanning Electron Microscopy (SEM). The addition of ZnO to PCL decreased the degradatio
Matéria (Rio J.). Publicado em: 06/12/2018
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4. Remote sensing of the chlorophyll-a based on OLI/Landsat-8 and MSI/Sentinel-2A (Barra Bonita reservoir, Brazil)
ABSTRACT In this present research, we assessed the performance of band algorithms in estimating chlorophyll-a (Chl-a) concentration based on bands of two new sensors: Operational Land Imager onboard Landsat-8 satellite (OLI/Landsat-8), and MultiSpectral Instrument onboard Sentinel-2A (MSI/Sentinel-2A). Band combinations designed for Thematic Mapper onboard L
An. Acad. Bras. Ciênc.. Publicado em: 31/08/2017
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5. The Lubricity Analysis of Cutting Fluid Emulsions
The new generation of cutting fluids should have some characteristics, such as low toxicity and biodegradability. A bio-cutting fluid emulsion are an excellent option because they present those properties, as well as good mechanical performance. The present study aims to investigate the lubricity of O/W emulsions (cutting fluid emulsion), varying the concent
Mat. Res.. Publicado em: 2017
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6. Tomografia de coerência óptica em pacientes submetidos a cirurgia de catarata
RESUMOObjetivos:Avaliar a capacidade da tomografia ocular de coerência de domínio espectral Spectral Domain-Optical Coherence Tomography (SD-OCT) diagnosticar alterações maculares no pré e pós-operatório da cirurgia de catarata e a variação da espessura foveal central (CFT) de acordo com a idade, sexo, presença ou não de oftalmopatias associadas,
Arq. Bras. Oftalmol.. Publicado em: 2015-08
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7. HYDRODYNAMICS AND BIO-OPTICAL ASSESSMENT OF TWO PRISTINE SUBTROPICAL ESTUARIES IN SOUTHERN BRAZIL
A quantificação de processos de transporte de pequena escala e a compreensão de como eles afetam o padrão espacial dos constituintes ópticos da água são peça chave no funcionamento de um ecossistema costeiro. A variação espacial e local de propriedades físicas e bio-ópticas da água foi analisada durante um ciclo de maré de sizígia do verão au
Braz. j. oceanogr.. Publicado em: 2014-12
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8. Bio-Optical Properties of the Inner Continental Shelf off Santos Estuarine System, Southeastern Brazil, and their Implications for Ocean Color Algorithm Performance
A classificação ótica de massas de água costeira auxilia na compreensão de processos físicos e biogeoquímicos e permite otimizar algoritmos de cor do oceano. Neste estudo, identificamos 3 classes óticas de águas na plataforma continental interna adjacente à Baía de Santos (Brasil), com base na reflectância de sensoriamento remoto observada durant
Braz. j. oceanogr.. Publicado em: 2014-07
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9. Biomassa e estrutura da comunidade fitoplanctônica dos ecossistemas do Banco de Abrolhos, adjacências e no Atlântico Sul (Brasil x África) / Biomass and Phytoplankton assemblage structure of Abrolhos Reef and South Atlantic (Brazil x Africa)
Para estimar a distribuição das diferentes classes de tamanho do fitoplâncton através de imagens de sensoriamento remoto e as propriedades bio-ópticas esse trabalho foi realizado em duas regiões. Durante o inverno de 2007 foi feito o cruzeiro com 58 estações hidrográficas sobre Banco de Abrolhos e adjacências e em 2009 o cruzeiro hidrográfico a lo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/10/2011
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10. Avaliação tardia dos stents liberadores de Biolimus A9® pela tomografia de coerência óptica: análise da cobertura tecidual e da aposição das hastes / Long-term follow-up Biolimus A9TM stents with optical coherence tomography: strut apposition and tissue coverage analysis
Introduction: First generation drug-eluting stents (DES) have emerged as a strategy to prevent in-stent restenosis and the need of target-vessel revascularization when compared to bare metal stents (BMS); but at the expense of a higher risk of very late stent thrombosis (ST). Uncovered and malapposed struts may be associated with both late and very late ST.
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/07/2011
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11. Radiopacity evaluation of Portland and MTA-based cements by digital radiographic system
OBJECTIVE: The aim of the present study was to evaluate the radiopacity of Portland and MTA-based cements using the Digora TM digital radiographic system. MATERIAL AND METHODS: The performed tests followed specification number 57 from the American National Standard Institute/American Dental Association (2000) for endodontic sealing materials. The materials w
Journal of Applied Oral Science. Publicado em: 2011-06
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12. Etnobotánica, anatomía y caracterización físico-química del aceite esencial de Baccharis obovata Hook. et Arn. (Asteraceae: Astereae)
Baccharis obovata Hook. et Arn. is an aromatic species known as "wautro", and is an important part of the Mapuche herbolarium of Patagonia Argentina. The objectives were to investigate its ethnobotany and shoot anatomy, as well as to characterize physically and chemically its essential oil. Rural informant-interviews were conducted in two Mapuche communities
Acta Botanica Brasilica. Publicado em: 2009-06