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Distribution of Cr, Ni, Cu, Cd and Pb in different molecular size of humic fractions extracted from water and sediment samples collected at Anhumas reservoir - Araraquara/SP
(Editora Unesp, 2002-01-01)
In this work was studied the distribution of Cr, Ni, Cu, Cd and Pb in humic fractions with different molecular size. The HS were extracted from waters (AHS), surface sediments (HESS), interface water sediment (HSIS) and ...
The Q-D algorithm for transforming series expansions into a corresponding continued fraction: an extension to cope with zero coefficients
(Elsevier B.V., 2003-07-15)
An algorithm for deriving a continued fraction that corresponds to two series expansions simultaneously, when there are zero coefficients in one or both series, is given. It is based on using the Q-D algorithm to derive ...
Fractionation of tire pyrolysis oil into a light fuel fraction by steam distillation
(2019)
© 2018 Elsevier LtdPyrolysis has been identified as a possible process for producing alternative fuels from thermal degradation of residue materials. In this work, a steam distillation process was applied to extract a light ...
On the Generalized Mittag-Leffler Function and its Application in a Fractional Telegraph Equation
(Springer, 2012-03-01)
The classical Mittag-Leffler functions, involving one- and two-parameter, play an important role in the study of fractional-order differential (and integral) equations. The so-called generalized Mittag-Leffler function, a ...
Phosphorus fractions in Brazilian Cerrado soils as affected by tillage
(Elsevier B.V., 2009-09-01)
No-tillage systems lead to physical, chemical and biological changes in soil. Soil fertility is responsive to changes in tillage as it depends on nutrient status, soil water content and biological characteristics. This ...
Thermal and chemical characterization of fractions from Syagrus romanzoffiana kernel oilCaracterización térmica y química de fracciones de aceite de semilla de Syagrus romanzoffiana
(Consejo Superior de Investigaciones Científicas (CSIC), 2022)
Mercury fractionation in stream sediments from the Quadrilátero Ferrífero gold mining region, Minas Gerais State, Brazil
(Environmental Monitoring and Assessment, 2018)
Development of equations to estimate microbial contamination in ruminal incubation residues of forage produced under tropical conditions using 15N as a label1
(2013-08-01)
The objective of this study was to use 15N to label microbial cells to allow development of equations for estimating the microbial contamination in ruminal in situ incubation residues of forage produced under tropical ...