State estimation (SE) of a power distribution network plays vital role in the management systems (DMSs). SE results can monitor and counteract grid technical challenges like tracking unbalanced operation condition. In this paper, we propose new approach for system which is based on decomposition original problem into three subproblems by applying symmetrical components. The are lower dimensions...

The existence of multi-axial states of stress cannot be avoided in elevated temperature components. It is essential to understand the associated ailure mechanisms and to predict the lifetime in practice. Although metal creep has been studied for about 100 years, many problems are still nsolved, in particular for those involving multi-axial stresses. In this work, a state-of-the-art review of cr...