WANG, LIYING; CUI, LIRONG - In: Asia-Pacific Journal of Operational Research (APJOR) 30 (2013) 04, pp. 1350003-1
imperfect. If the system fails, the repairs may restore it to any of its operating levels. A multivariate semi-Markov process is … are studied. Semi-Markov process theory, Laplace transform and matrix methods are employed in the study. A numerical …