the municipality of tehran is intending to construct a permanent international flower exhibition. the activities for construction began in the year 2006. the exhibition has three distinct areas namely “northern area”,”southern area” and “central area”. in northern and southern area the flowers are supposed to be preserved and in central area, they will be sold out. in the present st...

due to shortage of precipitation and the spatial and periodical disparity of rainfalls, iran iscounted among the arid and semi-arid countries of the world, and therefore the water utilities have put thecontrol of consumption and efficient use of water high on their priorities. water consumption management isconsidered as a field of energy management, and the impacts of effective measure related...

Efficient information dissemination is essential for the operation of sensor networks. However, one of the challenges to efficient information dissemination arises from only a random subset of nodes being active in any given time. This is mainly due to sensor networks employing power-saving techniques to compensate the energy constraints of sensor nodes. Specifically, significant delay is incur...