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 ...

in this study, we have theoretically investigated the effect of electron stopper layer on internal temperature distribution of high performance vertical cavity surface-emitting laser emitting at 1305 nm.  simulation software pics3d, which self-consistently combines the 3d simulation of carrier transport, self-heating, gain computation and wave-guiding, was used. simulation results show that cha...

OBJECTIVE To evaluate the effects of contamination by either blood or a hemostatic agent on the shear bond strength (SBS) of orthodontic buttons. METHODS We used 45 freshly extracted, non-carious, impacted third molars that were divided into 3 groups of 15. Each tooth was etched with 37% phosphoric acid gel for 30 s. Human blood or the blood stopper agent was applied to the tooth surface in g...

A comprehensive study was carried out to investigate the critical role played by interface between stopper and bottleneck on oxygen penetration into bottle, as well effect of surface treatment stopper. First, compression micro-agglomerated cork, at close 40% (similar that a cork in still wine bottleneck), had very limited transfer. Second, once inserted glass without any treatment, up 99% total...

Clinical cases of vitamin E deficiencies have been diagnosed in camelids and may indicate that these species are more sensitive to inadequate vitamin E in hay-based diets compared to other ruminant and equine species. In bovine, cholesterol has been reported to affect vitamin E concentrations. In order to evaluate vitamin E deficiencies in camelids, the effects of collection and storage of the ...

Could the authors provide the rationale of choosing the two different contaminants, blood and the blood stopper agent used in group I and II, respectively? Q2. I believe that the damages done on the resin tags during application of blood with a brush have something to do with the result of the group I associated with the lowest shear bonding stress (SBS) values. Q3. The moisture and temperature...

The diffusion of CO2 through macro- and micro-agglomerated cork stoppers for sparkling wine was studied by a manometric technique. effective coefficients each part the stopper (cork body, disc adhesives) were determined first time. results show that small particle size along with high adhesive content level compression favor gas barrier properties stopper. Although discs placed at one end prese...

usual MET-EL-S rubber stopper (3.97 and 3.99 mg/litre), as compared to bottles capped with Parafilm (2.32 and 2.26 mg/litre). For the nitric acid wash of the MET-EL-S rubber stopper, a zinc value exceeding 30 mg/litre was found. The contents of a bottle of the MET-EL-S quality-control serum was mixed and left inverted on the rubber stopper for five days, when the zinc value was found to be 6.80...