the effect of acetate ion introduced to aqueous solutions was investigated for the extraction/separation of ni and co from a dilute sulfate media. the separation of co and ni was improved by introducing acetate to aqueous media. by the use of the slope analysis method,the stoichiometric coefficient of the extractant was found to be 4 for cobalt and 3.5 or 4 for nickel depending on the acetate c...

The relationship between the depletions of Li and Li is studied for two models of lithium burning, below the convective zone. The parameters of the depletion models are submitted to the constraint that the slope of the Li theoretical depletion curve agrees with the slope of the observed depletion curve, for cool subdwarfs. Other less restrictive models are also considered. In all cases, a Li de...

Two species of free-living nematodes, Panagrellus redivivus and Turbatrix aceti, were cultured axenically at control (20 C) and cold (10 C) temperatures. Oxygen consumption of worms from each population was measured manometrically on days 2 through 8 after exposure to these temperatures. In both species, the slope of the oxygen consumption curve for the controls was greater than that of the wor...

Pelite is a polyethylene closed cell foam commonly used as an interface material in prosthetics. Both normal and vacuum-formed Pelite were tested under compression and under shear loading. For shear testing, the results were not significantly different for normal and vacuum-formed Pelite. For normal Pelite, the slope of the stress-strain curve was 1.17MPa (+/- 0.14) while for vacuum-formed Peli...

1. The ventilatory response to carbon dioxide was measured in a group of patients with chronic obstructive airways disease using a rebreathing method. 2. The slope of the carbon dioxide response curve was obtained by plotting the ventilation at successive half minutes against the corresponding mean end tidal Pco,. 3. The slope of the carbon dioxide response curve was positively correlated with ...

We report a study ·on the relationship between EEG amplitude values and unit spike output in the prepyriform cortex of awake and motivated rats. This relationship takes the form of a sigmoid curve, that describes normalized pulse-output for normalized wave input. The curve is fitted using nonlinear regression and is described by its slope and maximum value. Measurements were made for both excit...

This work presents semi-blind acoustic model adaptation based on a piece-wise energy decay curve. The dual slope representation of the piece-wise curve accurately captures the early and late reflection decay that helps in precisely modeling the smearing effect caused due to reverberation. The slopes are estimated in a semi-blind fashion, late reflection slope is estimated blindly by finding the...