In this paper, we consider a scheduling problem for a set of agile Earth observation satellites for scanning  different parts of the Earth’s surface. We assume that preemption is allowed to prevent repetitive images and develop four different preemption policies. Scheduling is done for the imaging time window and transmission time domain to the Earth stations as well. The value of each picture ...

More than five hundred chemically injured patients were admitted to the Labbafi-Nejad Medical Center in Spring of 1984. These patients were of two groups. The majority of patients had extensive skin burns, eye injuries as well as respiratory problems, and a second group of patients suffered mainly from neuromuscular and psychological problems. In this report, clinical manifestation and obs...