Calibration Transfer
Mostrando 13-24 de 27 artigos, teses e dissertações.
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13. Transferência de calibração em métodos multivariados
Calibration transfer has received considerable attention in the recent literature. Several standardization methods have been proposed for transferring calibration models between equipments. The goal of this paper is to present a general revision of calibration transfer techniques. Basic concepts will be reviewed, as well as the main advantages and drawbacks
Química Nova. Publicado em: 2007-10
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14. Comparison between Least-Square support vector machines and linear methods for calibration transfer / Comparação entre maquinas de vetores de suporte por minimos quadrados (LS-SVM) e metodos lineares para transferencia de calibração
The aim of this work was to compare the linear methods of calibration Partial Least Squares (PLS) and Piece-wise Direct Standardization (PDS) and a nonlinear method Least-Squares Support Vector Machines (LS-SVM) on calibration transfer to multivariate calibration models to the determination of alcoholic grade in cachaça in five different tempera
Publicado em: 2007
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15. âDesenvolvimento e ValidaÃÃo de um Modelo MatemÃtico para CÃlculo da Ãrea Superficial de Frangos de Corteâ. / Development and validation of a model to compute the surface area of broiler chickens
SILVA, Eberson. Development and validation of a model to compute the surface area of broiler chickens. 2007. 44 p. Dissertation (Master degree in Agricultural Engineering â Structures and Environment) Federal University of Lavras, Lavras, MG.* The surface area (As) of poultry is an important parameter in heat and mass transfer calculation, being tha
Publicado em: 2007
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16. PrevisÃo de propriedades das gasolinas do nordeste empregando espectroscopia NIR/MIR e transferÃncia de calibraÃÃo
Este trabalho tem duas partes, ambas envolvendo espectroscopia no infravermelho e quimiometria. Na primeira parte, foram obtidos modelos de calibraÃÃo multivariada baseados em dados espectrais nas regiÃes NIR e MIR para prever as principais propriedades de gasolinas comercializadas na regiÃo Nordeste. Foram coletadas 160 amostras de gasolinas e os modelo
Publicado em: 2006
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17. Modelagem do balanço de energia do dossel da cultura do pimentão em casa de vegetação. / Canopy energy balance modeling of sweet pepper cultivated in greenhouse.
In a greenhouse production system, the canopy of culture is the main element that modifies the internal microclimate. Its comprehension is very important to understand the energy exchange process. Due to the complexity interaction among several elements, the modeling represents an important tool for research in protected environments, but little used in Braz
Publicado em: 2005
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18. The transfer of metals for the foods and it possible relationship with the consumer s health / A transferência de metais para os alimentos e sua possível relação com a saúde do consumidor
With the preocupation gone back to the quality of the foods of human consumption, the present research has the purpose of evaluating the transfer of the metals aluminum (Al), chrome (Cr), iron (Fe) and nickel (Ni) during the cooking of the foods rice and bean in containers of aluminum and stainless steel. Initially they were prepared waters patterns, under d
Publicado em: 2005
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19. Investigação experimental da distribuição de temperaturas no reator nuclear de pesquisa TRIGA IPR-R1
The TRIGA-IPR-R1 Research Nuclear Reactor has completed 44 years in operation in November 2004. Its initial nominal thermal power was 30 kW. In 1979 its power was increased to 100 kW by adding new fuel elements to the reactor. Recently some more fuel elements were added to the core increasing the power to 250 kW. The TRIGA-IPR-R1 is a pool type reactor with
Publicado em: 2005
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20. Desenvolvimento e aplicação de modelos de transferencia de calibração em espectroscopia no infravermelho proximo de ondas curtas (SW-NIR)
The aim of this work was the development of calibration models using short wave near infrared and the application of calibration transfer techniques in analytical chemistry. In this studies were used three kinds of samples: cachaça, syrup s soft drinks and gasoline. In the first application, have been developed a calibration model to quantifying, in the tem
Publicado em: 2003
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21. Estudo fisico-quimico do transporte de especies quimicas atraves de membranas liquidas hidrofobicas em tempo real
Transport processes of variated chemical species - potassium ions, amino acids and vitamins - through hidrophobic liquid membranes was studied using BLM (bulk liquid membrane) method. UV - Vis spectroscopy was used in all cases to quantify the tranported species. It was not possible to use univariate calibration in cases of simultaneous transport because the
Publicado em: 2000
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22. Process analytical technology case study, part III: Calibration monitoring and transfer
This is the third of a series of articles detailing the development of near-infrared spectroscopy methods for solid dosage form analysis. Experiments were conducted at the Duquesne University Center for Pharmaceutical Technology to develop a system for continuous calibration monitoring and formulate an appropriate strategy for calibration transfer. Indcators
Springer-Verlag.
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23. Two terrestrial records of rapid climatic change during the glacial–Holocene transition (14,000– 9,000 calendar years B.P.) from Europe
Two independent multidisciplinary studies of climatic change during the glacial–Holocene transition (ca. 14,000–9,000 calendar yr B.P.) from Norway and Switzerland have assessed organism responses to the rapid climatic changes and made quantitative temperature reconstructions with modern calibration data sets (transfer functions). Chronology at Kråkenes
The National Academy of Sciences.
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24. Determination of chelated iron in the urine
A simplified wet-ashing technique is described for the determination of chelated iron in the urine, with special reference to DTPA-bound iron. The procedure dispenses with the need for quantitative transfer, and gives corresponding economy in time, labour, and glassware without loss of precision. The standard error of the mean estimate of a triplicate determ