ABSTRACT Non-invasive bioengineering technologies continuously discovered and developed in recent decades provide a significant input to research development and remarkably contribute to the improvement of medical education and care to our patients. AIM Assessing skin hydration by using the capacitance method for a group of patients with allergic contact dermatitis versus healthy subjects, be...

Hydration of a commercial hydrophilic polyacrylamide gel in 20 meq Ca(NO 3)2/ liter was reduced to <10% of the maximum hydration in deionized water. Repeated soaking with deionized water to remove soluble salts restored hydration to ≈ 30% of maximum. Incorporating KNO3 at concentrations ranging from 5 to 40 meq·liter -1 with the Ca(NO3)2 in the hydration solution partially reversed the Ca 2+ in...

The mineralogical composition, microstructure, and reactivity of traditional gypsum, a multiphase product, is closely connected to its calcination temperature, but systematic studies which relate those features mechanical properties weathering resistance plasters are scarce. Here we examined the hydration behavior gypsum calcined between 100 1000 °C, contained varying amounts uncalcined bassani...

The purpose of this research work was to study the effect polyethylene glycol (PEG) and polypropylene (PPG) as polyether polyols on properties mortar specimens. Electrochemical measurement used investigate change in charge transfer resistance during hydration cement. mechanical specimens were studied by flexural compressive strength tests. results show that PPG helps improve compared with PEG, ...

Despite reported synergies between alumina rich supplementary cementitious materials (SCMs) and limestone, previous studies have focused on up to 5% limestone content. Slag hydration in the presence of 10% limestone is reported in this paper. Hydration was followed through chemical shrinkage, calorimetry, thermal analysis, electron microscopy and X-ray powder diffraction. The results show that ...