The probability distribution function of the avalanche size in the sandpile model does not verify strict self-similarity under changes of the sandpile size. Here we show the existence of avalanches with different space-time structure, and each type of avalanche has a different scaling with the sandpile size. This is the main cause of the lack of self-similarity of the probability distribution f...

Certain systems with slow driving and avalanche–like dissipation events are naturally close to a critical point when the ratio of two energy scales is large. The first energy scale is the threshold above which an avalanche is triggered, the second scale is the threshold above which a site is affected by an avalanche. I present results of computer simulations, and a mean–field theory. PACS numbe...

Power estimation and optimization has become a key issue in embedded system design, especially in the rapidly growing market of mobile handheld computing, communication, internet devices that are driven by battery power. It is of paramount importance to estimate and optimize power of those systems during an early design stage at a high level of abstraction in order to efficiently explore the de...

Snow avalanches pose a threat to settlements and infrastructure in alpine environments. Due to the catastrophic events in recent years, the public is more aware of this phenomenon. Alpine settlements have always been confronted with natural hazards, but changes in land use and in dealing with avalanche hazards lead to an altering perception of this threat. In this study, a multi-temporal risk a...