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Exploiting knowledge of jump-up and jump-down frequencies to determine the parameters of a Duffing oscillator
(2016-08-01)
This work concerns the application of certain non-linear phenomena - jump frequencies in a base-excited Duffing oscillator - to the estimation of the parameters of the system. First, approximate analytical expressions are ...
Stoichiometry of sulfite oxidation by oxygen during the determination of the volumetric mass transfer coefficient
(American Chemical Society, 2008-12)
The aim of this work was to study the effect of the initial sulfite concentration on the stoichiometric coefficient of sulfite oxidation. A combined method based on the oxidation of sulfite by oxygen in the presence of ...
Diffusion coefficients during osmotic dehydration of tomatoes in ternary solutions
(Elsevier B.V., 2004-02-01)
The apparent diffusion coefficients for sucrose, NaCl and water during osmotic dehydration of tomatoes in ternary solutions were determined. Long time experiments (up to 60 h) were carried out in order to determine equilibrium ...
Evapotranspiration and crop coefficient of Basil determined by weighing lysimetersEvapotranspiração e coeficiente de cultivo de manjericão determinados por lisímetros de pesagem
(2019-10-01)
The basil (Ocimum basilicum) crop is of great importance for trading as fresh or dried condiment for human consumption and essential oil for pharmaceutical and cosmetic industries. Water excesses and deficits can affect ...
Experimental study of the complex reflection coefficient of shear waves from the solid-liquid interface
(2010-01-01)
The determination of the reflection coefficient of shear waves reflected from a solid-liquid interface is an important method in order to study the viscoelastic properties of liquids at high frequency. The reflection ...
Experimental study of the complex reflection coefficient of shear waves from the solid-liquid interface
(2010-01-01)
The determination of the reflection coefficient of shear waves reflected from a solid-liquid interface is an important method in order to study the viscoelastic properties of liquids at high frequency. The reflection ...
EVALUATION OF DIFFUSION-COEFFICIENTS IN OSMOTIC CONCENTRATION OF BANANAS (MUSA-CAVENDISH LAMBERT)
(Blackwell Science, 1995-04-01)
The effect of time of exposure, solution concentration and temperature on the osmotic concentration of banana (slices of 11 mm thickness) was studied in aqueous sucrose solutions. The selectivity of the cellular tissues ...