Through their communications mix, firms make decisions that have implications for the ease with which consumers can search for product information. A common intuition is that firms would like to make information easily available to consumers, but choose not to because facilitating consumer search is costly to them. The main result of this paper counters this intuition – firms may not want to ma...

We consider two non-interacting systems embedded in a heat bath. If they remain dynamically independent, physical inconsistencies are avoided only if the single-system reduced dynamics is completely positive also beyond the weak-coupling limit.

A set of efficient algorithmic solutions suitable to the fully parallel hardware implementation short-length circular convolution cores is proposed. The advantage presented algorithms that they require significantly fewer multiplications as compared naive method implementing this operation. During synthesis algorithms, matrix notation cyclic operation was used, which made it possible represent ...

Rolling element bearing failure is one of the foremost causes of breakdown in rotating machinery. It is not uncommon to replace a defected/used bearing with a new one that has shorter remaining useful life than the defected one. Thus, prognostics of bearing plays critical role for increased availability and reduced cost. Effective prognostics highly depend on the quality of the extracted featur...