Light Distribution In Scattering Medium
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Variation of the milling conditions in the obtaining of nanocellulose from the paper sludge
ABSTRACT This work aimed to evaluate three different milling conditions, seeking the optimization of CNS isolation process. The paper sludge was chemically treated with detergent and H2O2, by two steps, to remove the noncellulosic contents (hemicellulose and lignin). After these treatments, the sample was milled with the variation of a liquid medium. The thr
Matéria (Rio J.). Publicado em: 16/09/2019
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2. Droplet Size Distribution in Water-Crude Oil Emulsions by Low-Field NMR
This paper reports the droplet size distribution (DSD) measurements in 28 W/O (water/oil) crude oil emulsions prepared with two Brazilian oils (medium and heavy) under different shear conditions using both 10 g L-1 NaCl solution and water production by low field nuclear magnetic resonance (NMR, 2.2 MHz). The PFGSTE (pulsed-field gradient-stimulated echo) pul
J. Braz. Chem. Soc.. Publicado em: 12/08/2019
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3. Métodos simplificados para obtenção de distribuição de luz em tecidos biológicos: aplicação para terapia fotodinâmica / Simplified methods for obtaining the light distribution in biological tissues
The determination of light distribution within biological tissues is important for applications such as photodynamic therapy and photodiagnostics. Most applications use light that reaches the tissue surface and propagates along the depth. The combination of absorption and scattering leads to light intensity profiles which determines the therapeutic action. C
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/06/2011
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4. Validação de simulação por Monte Carlo da interação de laser vermelho e infravermelho com emulsão lipídica para estudos de dosimetria de luz em tecidos biológicos / Validation of Monte Carlo simulation of red and infrared laser in lipid emulsion interaction to dosimetry of light in biological fissues studies
O conhecimento da dose de luz dentro do tecido biológico pode aprimorar diversos protocolos aplicados para redução da inflamação e da dor, terapia fotodinâmica e regeneração tecidual. O objetivo deste trabalho é calcular a distribuição de luz em Lipovenos 10% (Lp) por simulação de Monte Carlo, realizar medidas experimentais e comparar os resulta
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/04/2011
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5. Efeitos nÃo lineares em lÃquidos orgÃnicos e meios nanoestruturados
In this thesis, we report studies of nonlinear transverse effects in organic liquids, carbon disulfide (CS2) and dimetil sulfoxide (DMSO), and of fluorescent emission effects in nanostructured media, more specifically, frequency upconversion in erbium doped barium titanate nanocrystals (BaTiO3:Er3+) and laserlike emission from inverted opal nanostructure of
Publicado em: 2004
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6. Cinetica de coagulação de latex de poliestireno
Polystyrene latex coagulation (by NaCl) was followed by density gradient centrifugation and light scattering measurements. Coagulation products obtained at various NaCl and latex concentrations and temperatures were determined; from these data, coagulation rate constants were calculated. Experimental rate constants at [NaCl] = 0.50 mol dm and T = 25 and 45°
Publicado em: 1990
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7. Visualization of crystallin droplets associated with cold cataract formation in young intact rat lens.
The structure, distribution, and nature of scattering elements associated with cold cataract formation in the young rat lens were studied in situ using light and electron microscopy and ImmunoGold electron microscopy. A large accumulation of spherical droplets, ranging from approximately 1.5 microns to 10 microns in diameter, were found in the lens nucleus i