We analyze checkpointing strategy for multiple realtime tasks with deadlines. Real-time tasks usually have deadlines associated with them. For multiple real-time tasks, checkpointing strategy considering deadlines of all tasks is very difficult to derive. We analyze the problem of checkpoint placement for such multiple tasks. In our strategy, the interval between checkpoints are determined for ...

The IEC standards 61508/61511 require that reliability targets for safety instrumented functions are defined and verified. The reliability targets are given as one out of a possible four safety integrity levels. For each safety integrity level there are many design requirements, including requirements for the probability of failure on demand. Verification of the requirements for the probability...

In this paper we study the impact of variability on the transmission gate based latch. The threshold voltage (Vt) fluctuation due to Random Dopant Fluctuation (RDF) and Process, Voltage, and Temperature (PVT) effects to propagation delay, as well as subthreshold leakage and probability of failure are discussed. We propose a modeling methodology which is not tied to a specific topology such as M...

In this paper, an improved model is presented for analysis of failure probability of the interlayer sliding belts under seismic loads. Firstly, using the theory of the Markov chain, the relation between failure probabilities of specified interlayer sliding belts and elements in this interlayer sliding belt is deduced. Then, the failure function is proposed according to the destructive character...