This work presents an improved solution to the problem of determining effective multiprocessor scheduling polldes for real-time repetitive tasks. In order for this approach to be applicable to some task, the probability density function of its execution time, a value function and a criticality i~ctor are required. When these parameters are available, the proposed method constructs effective sch...

Repetitive tasks can undoubtedly cause discomfort and pain, but whether they cause or worsen the pathology causing the pain is most uncertain. Research in this area is difficult as the 'work-related upper limb disorders' do not occur exclusively in workers and because there is no simple, reliable and reproducible test for most 'work-related upper limb disorders'. Furthermore many studies are di...

wireless sensor networks(wsn) have unique properties that distinguished them from other wireless networks and have special challenges. not-chargeable, not-changeable and limited power supplies of sensor nodes is the most important challenge of this networks, and if the power supply of node expired, a part of data maybe lost. because of the importance of covers in wireless sensors, in this work ...