Abstract In this paper, a repairable system of a monotone process model for a one-component multistate degenerative system with (k + 1) states(k-failure states and one working state) is studied. Also an alternative model, called the Negligible Or Non-Negligible (NONN) repair times introduced by Thangaraj and Rizwan (2001) is incorporated in this model to develop some new repair models. A replac...

the encounter between the west and the east is historically regarded a s crucial i n the european chronicles. i n the 16th century, the politics of queen elizabeth i towards muslims was dualistic: on the one hand, her state united with muslims to stand against imperial spain, and on the other hand, after the defeat of the spanish armada in 1588 by the english, her state’s policy changed into a ...

This paper examines the main directions of P. N. Wrangel’s national and confessional policy in Crimea 1920. The study aims to determine specifics implementation during political regime regarding various population groups. research methodology relies on principles critical analysis periodicals private sources, many which have never been studied previously. More particularly, authors talk about d...

This paper consideres an optimal ordering and replacement problem of a continuous time Markovian degradation system. An optimal policy minimizes the expected cost per unit time in an infinite time horizon. The problem is formulated by semi-Markov decision process and the optimality of an (n,N)-policy is shown. Further, the expected cost rate of the system operated under an (n,N)-policy is obtai...

At some stage, most of the models and techniques implemented in IR use frequency counts of the terms appearing in documents and in queries. However, many words, since they are derived from the same stem, have very close semantic contents. This makes a grouping of such variants under a single term advisable. Otherwise, dispersal occurs in the calculation of frequency of these terms, and it also ...