Coefficients Of The Emission
Mostrando 1-12 de 32 artigos, teses e dissertações.
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1. What is new for 2020
Photophysical processes in multicomponent solutions composed by natural pigments, extracted from Caesalpinia echinata (Brazil-wood) leaves, are investigated. Beacuse of the main fluorescent molecules in these solutions are the chlorophyll a, chlorophyll b and pheophytin a, all features are discussed regarding these three pigments. It is observed that the flu
J. Braz. Chem. Soc.. Publicado em: 2020-01
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2. Selective Inner-Filter on the Fluorescence Response of Chlorophyll and Pheophytin Molecules Extracted from Caesalpinia echinata Leaves
Photophysical processes in multicomponent solutions composed by natural pigments, extracted from Caesalpinia echinata (Brazil-wood) leaves, are investigated. Beacuse of the main fluorescent molecules in these solutions are the chlorophyll a, chlorophyll b and pheophytin a, all features are discussed regarding these three pigments. It is observed that the flu
J. Braz. Chem. Soc.. Publicado em: 2020-01
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3. Basal metabolic rate in Brazilian patients with type 2 diabetes: comparison between measured and estimated values
ABSTRACT Objectives: The aims of this study are to investigate which of the seven selected predictive equation for estimating basal metabolic rate (BMR) is the best alternative to indirect calorimetry (IC) and to evaluate the dietary energy intake in patients with type 2 diabetes. Subjects and methods: Twenty-one patients with type 2 diabetes participated
Arch. Endocrinol. Metab.. Publicado em: 2019-01
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4. In situ Determination of K, Ca, S and Si in Fresh Sugar Cane Leaves by Handheld Energy Dispersive X-Ray Fluorescence Spectrometry
A portable energy dispersive X-ray fluorescence spectrometer was evaluated in the in situ analysis of fresh sugar cane leaves for real time plant nutrition diagnosis. Fresh leaf fragments (n = 10 sugar cane varieties; 20 fragments per leaf; 2 measurement sites per fragment) were irradiated and the averaged data from X-ray characteristic emission lines intens
J. Braz. Chem. Soc.. Publicado em: 2018-05
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5. Fast assessment of mineral constituents in grass by inductively coupled plasma optical emission spectrometry
A method for evaluating inorganic constituents in the grass by ICP OES is proposed. The samples were digested with nitric acid plus hydrogen peroxide in a microwave system. Seventeen samples were collected in the metropolitan area of Curitiba and Castro in the Paraná State, Brazil. The following elements were studied: Al, As, Ba, Ca, Cd, Co, Cr, Cu, Fe, K,
Brazilian Archives of Biology and Technology. Publicado em: 2012-06
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6. Propriedades Ãpticas dos vidros Er3+:PbPO4 / Optical Properties of the Er3+:PbPO4 Glasses
In this work we employ several techniques to investigate the optical properties of moderately high Er3+-doped lead phosphate (EDLP) glasses. The third-order optical susceptibility, χ3, and dispersion of the linear refractive index, n0(λ), of Er3+:PbPO4 were measured in the wavelength range between 400 and 1940 nm by using the spectrally resolved fe
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/07/2010
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7. CARBONATAÇÃO NATURAL DE PROTÓTIPOS DE CONCRETO COM CINZA DE CASCA DE ARROZ SEM MOAGEM / NATURAL CARBONATION IN CONCRETE PROTOTYPES WITH NON-GROUND RICE HUSK ASH
Cement is the construction building material with higher responsibility by carbon dioxide emission of all industrial human activities, besides be a considerably expensive material, more than the rice husk ash in nature. Environmental benefits are generated in its utilization, because rice husk ashes are industrial process residues of the grain processing, th
Publicado em: 2010
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8. ZIMORA - UM MODELO NUMÉRICO 3D DE DISPERSÃO ATMOSFÉRICA / ZIMORA - A 3D NUMERICAL MODEL FOR ATMOSPHERIC DISPERSION
In this thesis, we presents a development and validation of a 3D numerical model for the advection-diffusion equation. Models of this kind has been developed for scientific investigations and to support atmospheric emissions control and environmental policy decisions. To develop this model, we used the computational implementation of an explicit numerical sc
Publicado em: 2009
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9. Projeto e construção de bancada para ensaios de filtração de gases a alta pressão
With the industrial expansion and the increase of vehicles assembled daily, there was an increase in the use of natural gas as combustible. Beyond the cheaper the level of emission of pollutants by burning natural gas as fuel it is lower than all the fuels used until today. The increasing consumption of natural gas and the severity of the legislation in resp
Publicado em: 2009
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10. Mapping greenhouse gases in the state of Bahia with the aim to reduce it wite energy efficiency initiatives and energy inputs substitution / Mapeamento das emissões de gases do efeito estufa no estado da Bahia com perspectiva de redução a partir de ações de eficiência energética e substituição de energéticos
The objective of this thesis is to analyze the consumption of energy among the segments of the economy of the State of Bahia and to create a matrix of greenhouse gases emissions in the state. Policies based on increasing the energy consumption efficiency and replacement of energy sources by less emitting ones could then be identified. The research is based o
Publicado em: 2008
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11. CorrelaÃÃo de elementos traÃo, densidade mineral Ãssea, massa livre de gordura e massa gorda em idosas
The trace elements in the organisms are responsible for innumerable functions, however, alterations in its concentrations can be associated with osteoporosis and sarcopenia, mainly in elderly women. Therefore, the current study had as aim to correlate trace elements with BMD, lean mass and fat mass in elderly women, monitored through hair exams. Twenty-seven
Publicado em: 2006
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12. Características agronômicas e genéticas de Helicônias na Zona da Mata de Pernambuco. / Agronomic and genetics traits from Heliconia genotypes in the Pernambuco Forest Zone.
The genotypes of the Heliconia Germoplasm Collection of University Federal Rural of Pernambuco (UFRPE), implanted in December of 2003 in Camaragibe, were valued agronomic traits. In the first stage, information on number of shoots per clump (NPT) and the clump basal area (AOT) of 26 Heliconia spp. genotypes, cultivated at full sun and partial shade, accordin
Publicado em: 2005