A calibration method was developed for the quantification of isocyanates in cork stoppers agglomerates. Bracketing and multipoint calibration curve was applied to a in-house optimized UPLC/DAD analytical method. The calibration curves were obtained by regression analysis using experimental points that covers the range of concentrations expected in real samples. A contaminated real sample was in...

We have proposed a novel three-dimensional (3D) photonic crystal laser. The electromagnetic field, radiation power density, and lifetime of spontaneous emission of the laser were calculated by a plane-wave method. When a defect layer is introduced into the crystal, spontaneous emission radiates only in the lasing direction. The radiation angle is as sharp as that of a conventional surface-emitt...

Field experiments were conducted to determine the effectiveness of the floral compound phenylacetaldehyde in increasing capture of fall armyworm, Spodoptera frugiperda , males in pheromone-baited traps. Plastic Unitraps were placed in cotton and corn fields in north-central Florida and were baited with commercial sex pheromone and synthetic phenylacetaldehyde released from hollow polyethylene s...

Background: Nowadays, as a result of globalization, markets are more competitive, and customers demanding. To respond to these challenges, organizations must develop mechanisms for continuous improvement in order eliminate waste increase the efficiency effectiveness processes. Thus, present study carried out at an industrial unit responsible customization cork stoppers wines had its main object...

A fast manometric method has been designed for determining the oxygen transfer rate through cork stoppers. Thanks to this technique, it is possible measure effective diffusion coefficient of a thin wafer in few days, whereas months are required case full-length stopper. calculation also developed and validated extrapolate measured on wafers stopper, based statistical analysis experimental data ...