Recent air traffic control regulations mandate the installation of computer-based flight management systems in airliners across Europe. Integrating and certifying add-on cockpit systems is a long and costly process, which in its current form cannot meaningfully address ergonomics aspects. Two levels of problems occur: add-on systems carry many "classic" HCI failures, which could easily be addre...

drying is considered as one of the important stages after plant harvesting which plays an important role in maintaining the quantity and quality of their active ingredients. st. john's wort (hypericum perforatum l.) is an important medicinal plant that high percentages of hypericin in its leaves and flowers are considered as the most important feature of the iranian species. in this resear...

Applying corona wind as a novel technique can lead to a great level of heat and mass transfer augmentation by using a very small amount of energy. The enhancement of forced flow evaporation rate by applying electric field (corona wind) has been experimentally evaluated in this study. Corona wind produced by a fine wire electrode charged with positive high DC voltage impinges on water surface an...

bioactive glass air abrasion is a conservative technique to remove initial decalcified tissue and caries. this study examined the shear bond strength of composite resin to sound and decalcified enamel air-abraded by bioactive glass (bag) or alumina using etch-and-rinse and self-etch adhesives.forty-eight permanent molars were root-amputated and sectioned mesiodistally. the obtained 96 specimens...

evaporative cooling system and high air velocity management are important tools in alleviating the effects of heat stress on broilers performance during hot weather. in this study, technical and economical aspects of ventilation in varamin township broiler farms during summer were investigated. data were obtained from completed questionnaires through 20 broiler houses. information of air veloci...