this research that was made on 66 cyclones in wet periods of midwest of iran in a given period (1973-2003) shows that in intense wet periods, cyclogensis centers of mediterranean sea, sudan, red sea and mesopotamia were severely active and have been very effective in rainfall of study area. such systems in general, with respect to dominant synoptic patterns, enters into study area from three ma...

conclusions tram tracks on public roads are potentially dangerous and can lead to serious injuries and even mortality amongst cyclist. operative intervention is frequently needed. background in cities with trams as public transportation, tram tracks are often on public roads, creating a shared road situation with other road participants like cyclists. beside the risk of direct collisions, this ...

Search theory is the discipline that studies the problem of how best to search for an object when the amount of searching efforts is limited and only probabilities of the possible position of the object are given. Then, the problem is to find the optimal distribution of this total effort that maximizes the probability of detection. Although the general formalism of search theory will be used su...