the purpose of this study was to evaluate the species-environment relationships in arid and semi-arid rangelandsof nodushan, yazd. the plant species cover and the environmental variables were measured at 9 sites. soil sampleswere taken for measurement of 12 attributes in 0-10 cm and 10-80 cm layers. vegetation was classified using twowayindicator species analysis (twinspan). data was analyzed u...

In this study, a collaborative team formation system of hybrid teams biped robots and tractor-trailers is designed for some common task. The consists number subsystems. Each subsystem composed tractor-trailer as the leader group followers. For convenience design, novel reference models are proposed to generate desired time-varying leader-follower cooperative in each team. Accordingly, design pr...

Driving vehicles with one or more passive trailers has difficulties in both forward and backward motion due to inter-unit collisions, jackknife, and lack of visibility. Consequently, advanced driver assistance systems (ADAS) for multi-trailer combinations can be beneficial to accident avoidance as well as to driver comfort. The ADAS proposed in this paper aims to prevent unsafe steering command...