Underground coal mining is a challenging and hazardous occupation that requires constant monitoring of environmental parameters to ensure the safety miners. A handful research has been carried out in developing wireless devices monitor underground mine workings using Wi-Fi ZigBee, which limitations such as limited range, interference, reliability, power consumption, security. The main objective...

Artificial intelligence (AI) is progressively changing techniques of teaching and learning. In the past, objective was to provide an intelligent tutoring system without intervention from a human teacher enhance skills, control, knowledge construction, intellectual engagement. This paper proposes definition AI focusing on enhancing humanoid agent Nao’s learning capabilities interactions. The aim...

early warning systems are key components of strategies to reduce risk. this research, by adopting a systematic approach in the management of the risk of desertification and by including previously developed models and systems, offers an integrated efficient structure in terms of early warning for the risk of desertification as a pilot system for semi-arid areas of west golestan province in iran...