In this paper, we consider scheduling of project networks under minimization of total weighted resource tardiness penalty costs. In this problem, we assume constrained resources are renewable and limited to very costly machines and tools which are also used in other projects and are not accessible in all periods of time of a project. In other words, there is a dictated ready date as well as a d...

Carreras, Dobson, and colleagues have studied empirical data on the sizes of blackouts in real grids modeled them with computer simulations using direct current approximation. They found that resulting blackout are distributed as a power law suggested this is because driven to self-organized critical state. In contrast, more recent studies distribution cascades bimodal either very small or larg...

The danger of a total blackout in wide area or, even worse, country is always present. restoration methods after mainly focus on the strategy that dispatchers control centers Transmission System Operator will follow than abilities distribution’s microgrids have. This study suggests technique to improve distribution system resilience following blackout, using distributed generation for important...

The complexity of future power networks and the expected high level of uncertainties in these networks might radically affect the required security and reliability of their operation. Wide-Area Monitoring, Protection and Control (WAMPAC) involves the use of system-wide information and the communication of selected local information to a remote location to counteract the propagation of large dis...

The country seems to have quickly embarked on a new energy crisis. "From Manhattan to Montana, worries are mount­ ing that skyrocketing power prices and rolling blackouts will soon spread from their epicenter in California.... Concern about the power picture extends to the top levels of the Bush Administration as it attempts to hammer out a new energy policy."i As politicians search for possibl...