Moisture Sorption Isotherms of Whey Powder Spray in the 10–40°C Temperature Range

The results of water sorption tests on whey powder spray carried out under laboratory conditions were presented together with mathematical analyses of the sorption isotherms. Moisture equilibrium data were investigated at air temperatures over the temperature range 10–40°C and water activity ranging from 0.3 to 0.99. The experimental procedure used was a gravimetric dynamic method with continuous registration of sample weight changes. A special laboratory drying device was developed for the purpose. The sorption capacity decreased as the temperature increased. Re-hydration of the dried material resulted in hysteresis but this phenomenon was limited. Four models of equilibrium moisture content/water activity (Chung-Pfost, Halsey, Henderson and Oswin) were evaluated for their ability to fit the data for the samples tested. The Henderson equation provided a good model for moisture adsorption and desorption by whey powder spray

Using Semantic Search as a Means of Support for Research Projects

Part 4: Semantics and EnvironmentInternational audienceThe present contribution deals with analyzing the issue of semantic searching and the possibilities of its integration as a part of the portal for scientific projects support. The difficulties of integration of the semantic principles into the solution itself, the software support of the portal creation, i.e., solutions that are accessible, and possibilities of further development are discussed here. A part of the solution is the integration and support of XBRL documents being a fundamental part of inter-company communication and information exchange. Last but not least, the contribution discusses the possibilities of employing the principles of semantic searching in portal discussions which are treated on the levels of social networks, and the integration of these discussions as supporting the management of team projects