An electronic nose, comprising nine metal oxide sensors, has been built aiming to classify olive oils according the fruity intensity commercial grade (ripely or light, medium and intense greenly fruity), following European regulated complementary terminology. The lab-made sensor device was capable differentiate standard aqueous solutions (acetic acid, cis-3-hexenyl, cis-3-hexen-1-ol, hexanal, 1...

beech forests in midland areas of hyrcanian forests of iran are the most important forests having the highest degree of naturalness. these forests are the valuable source of wood production and other forest products. one of the most important characteristics of plant communities is the spatial pattern of trees. ecological process in forest ecosystems are directly influenced by the spatial patte...

Effi e Louise Power (1873–1969) represented the high standard of collaboration among children’s librarians that characterized the entire development of youth services work. This article examines Power’s role in U.S. library history as a practitioner, library and information science educator, national and regional professional leader, and author. Particular emphasis is given to Power’s place in ...