Convection dryers are the most affordable and commonly used for processing of agricultural products. However, since temperature is high or drying time long, materials such as fruits vegetables may turn brown nutrients deteriorate, therefore this method not suitable production dry powders vegetables, which expected to have bright colors nutritional functions. Low (LTD) has made it possible produ...

common drying systems, including hot air convection, infrared, vacuum and ir-convective were employed to investigate and analyze the drying process of mulberry fruits. to evaluate the effect of pretreatment on the drying phenomenon, samples were pretreated by being subjected to: microwaves, chemical preparation, mechanical as well as blanching approaches. results revealed that the microwave pre...

Male and female rats respond to a fearful experience in different ways, but this was not previously taken into account in research into psychiatric disorders.

freeze concentration is a process of concentrating liquid products by freezing the water content and subsequently removing the so-formed ice crystals from the food system. in dairy processing, this technology offers the advantage of minimizing the heat abuse of sensitive milk components, such as proteins and flavors. it thus provides an opportunity for producing dairy ingredients with enhanced ...

An experimental investigation was conducted to study the performance of a novel indirect type free convection solar dryer. The and conventional passive dryer were built. Solar irradiation temperature different locations recorded. air at drying chamber entrance, lower space, upper space temperatures besides thermal efficiency 68, 39, 49 85%, respectively, higher than one.

freeze-thaw is one of the most powerful weathering agents that may cause a rapid change in the initial engineering properties of stones, and limit their durability. freeze-thaw induces stress over the pores’ surface of stones. consequently, stone durability is closely related to its engineering and physical properties. the purpose of this study is estimating the engineering properties of deteri...

BACKGROUND The aim of this study was to determine whether the use of visual freeze indicators on vaccines would assist health care providers in identifying vaccines that may have been exposed to potentially damaging temperatures. METHODS Twenty-seven sites in Connecticut involved in the Vaccine for Children Program participated. In addition to standard procedures, visual freeze indicators (FR...