A poly(vinyl chloride) membrane based on a new a-dioxime derivative as membrane carrier was prepared andinvestigated as a Cr(III) selective electrode. The electrode exhibits a good potentiometric response for Cr(III)over a wide concentration range 1.0 x 10-6 to 1.0 x 10-1 M with a slope 19.5+0.5 mV/decade and low detectionlimit of 8.9 x 10-7 M. It has a fast response time < 15 s. The best perfo...

NH+4 ions, at a concentration (0.25 mM) similar to that found in the plasma of patients with hepatic encephalopathy, cause, in vitro, a significant stimulation of the uptake by brain microvessels of large neutral amino acids, without any effect on the uptake of alpha-methylaminoisobutyric acid, glutamic acid, or lysine. Such a stimulation occurs essentially through an increase of the maximal tr...

Plant Growth Promoting Rhizobacteria Pseudomonas and Bacillus are well known biofertilizer due to their ability for solubilizing inorganic phosphate producing phytohormones in soil. However, potential decreased diseases incidence caused by Pratylenchus coffeae has been documented. The objective of this laboratory experiment was formulate solid contained diminuta subtilis. experiments consisted ...

In this article, the equivalent relationship between nearest-three-virtual space vector and carrier-based pulsewidth-modulation scheme is established based on coordinate for a three-level neutral-point-clamped (3L-NPC) converter. Moreover, to solve neutral-point voltage imbalance problem of studied 3L-NPC converter-fed high-speed drives, an active modulation strategy with generalized bias-offse...

The current switching ripple in a three-phase four-wire split-capacitor converter is analyzed this paper for all the four ac output wires relation to both balanced and unbalanced working conditions. Specifically, analytical formulations of peak-to-peak root mean square (RMS) ripples are originally evaluated as function modulation index, separately three phases neutral wire. Initially, single-ca...