Catalysis of the hydrolysis organ phosphorus compound, quinalphos (Q) by (hydr) oxides was studied at pH 4.0, 7.0, and 10.0, 25oC. FeOOH Al(OH)3 were used solids for this research. followed determining disappearance Q appearance 2-hydroxyquinoxaline (HQ) product in absence presence using HPLC with UV detector. Under these conditions, both hydroxides (FeOOH Al(OH)3) have catalyzed quinalphos. In...

The reaction mechanism and kinetics investigation of the substitution titanium in wheat flour polysaccharide (referred to here as titaniumation) aqua medium during bead making process was carried out. use Modified Reductor Technique implored study kinetics. out at varying temperatures between 25 – 70oC. showed that titaniumation molecules increased with time temperature. Hence, 25oC, degree (DT...

The success of a FE model for metal cutting process is strongly dependent on the accurate characterization of the workpiece material, under similar conditions as those found in metal cutting. In this paper, dynamic shear tests using a Gleeble machine have been performed on 4 mm thickness disks of AZ31B-O magnesium alloy, using a special designed tool. In order to include the effects of the cryo...

A BiCMOS temperature stable voltage-tofrequency converter is described. The circuit includes an input voltage-to-current conversion stage followed by a voltage-controlled current switch. The switch is controlled by a nonsaturated multivibrator with a limiter of the output voltage swing. The multivibrator thresholds are stabilized using a current produced in a bandgap voltage reference. This all...

In this work an easy, reproducible and inexpensive technique for the production of solid state nanopores and micropores using silicon wafer substrate is proposed. The technique is based on control of pore formation, by neutralization etchant (KOH) with a strong acid (HCl). Thus, a local neutralization is produced around the nanopore, which stops the silicon etching. The etching process was perf...

Taking into account the preliminary antagonistic/biodegradation property showed by Pichia membranifaciens and Sporobolomyces roseus, which decreased the initial patulin concentration of 588.4 to 290.0 μg/mL, ability of P. ohmeri 158 in biocontrol against Penicillium expansum and patulin decrease in vitro was performed. The culture supernatant of P. ohmeri 158 was effective against 66.17% miceli...

In recent decade, the new advanced nanofluids, composed from various particles, have attracted the attention of researchers. This class of nanofluids, which can be prepared by suspending several types (two or more than two) of nanoparticles in base fluid, is termed as hybrid nanofluids. In this work, an experimental investigation on the effects of temperature and concentration of nanoparticles ...

Many shrimp farmers were suffering from White Spot Disease (WSD) onset in last decades. Oscillation of environmental factors could lead mortality in susceptible hosts. The results showed mortality started earliear (36h post inoculation) at 25OC in comparison to the temperature more than 29 OC as well as the salinity of 50 ppt in comparison to the lower degrees of salinities. It is concluded tha...

Isothermal phase diagrams for the semicrystalline poly-L-lactide (PLLA) and the amorphous poly-DL-lactide (PDLLA) in combination with several solvent-nonsolvent combinations (dioxane/water, dioxane/methanol, chloroform/methanol, and NMP/water) have been determined. The locations of the liquid-liquid miscibility gap, the solid-liquid miscibility gap and the vitrification boundary in the isotherm...

This study performed physical, chemical, and microbiological analyses to determine the best formulation shelf life of a new additive-free Mediterranean diet product. The spreadable creamed product was formulated with roasted peanut (32%) hazelnut mixed, sweetened dried grape (15%) sun-dried apricot (15%). Different storage temperatures as 25 oC, 35 45 oC were used for prediction accelerated she...