Gupta, Rakesh; Kishan, Ram; Kumar, Dharmendra Cost benefit analysis of a two non-identical unit standby system with preventive maintenance. (English) Zbl 1282.90056 J. Comb. Inf. Syst. Sci. 37, No. 1, 21-31 (2012). MSC: 90B25 PDFBibTeX XMLCite \textit{R. Gupta} et al., J. Comb. Inf. Syst. Sci. 37, No. 1, 21--31 (2012; Zbl 1282.90056) Full Text: Link
Gupta, Rakesh; Kishan, Ram; Kumar, Dharmendra Complex system with two physical conditions of repairman and inverse Gaussian repair time distribution. (English) Zbl 1181.90088 J. Rajasthan Acad. Phys. Sci. 8, No. 3, 311-318 (2009). MSC: 90B25 PDFBibTeX XMLCite \textit{R. Gupta} et al., J. Rajasthan Acad. Phys. Sci. 8, No. 3, 311--318 (2009; Zbl 1181.90088)
Gupta, Rakesh; Kishan, Ram; Kumar, Dharmendra Profit analysis of a three unit redundant system with correlated failure and repair times. (English) Zbl 1142.90374 J. Rajasthan Acad. Phys. Sci. 7, No. 2, 169-178 (2008). MSC: 90B25 PDFBibTeX XMLCite \textit{R. Gupta} et al., J. Rajasthan Acad. Phys. Sci. 7, No. 2, 169--178 (2008; Zbl 1142.90374)
Gupta, Rakesh; Kishan, Ram On the profit comparison of two stochastic models each pertaining to a two-unit standby system with fixed preparation time and hyper-exponential repair time distributions. (English) Zbl 1033.90505 Int. J. Syst. Sci. 30, No. 12, 1309-1317 (1999). MSC: 90B25 PDFBibTeX XMLCite \textit{R. Gupta} and \textit{R. Kishan}, Int. J. Syst. Sci. 30, No. 12, 1309--1317 (1999; Zbl 1033.90505) Full Text: DOI
Gupta, Rakesh; Kishan, Ram; Kumar, Pawan A two-non-identical-unit parallel system with correlated lifetimes. (English) Zbl 1090.90510 Int. J. Syst. Sci. 30, No. 10, 1123-1129 (1999). MSC: 90B25 PDFBibTeX XMLCite \textit{R. Gupta} et al., Int. J. Syst. Sci. 30, No. 10, 1123--1129 (1999; Zbl 1090.90510) Full Text: DOI
Gupta, Rakesh; Tyagi, P. K.; Kishan, Ram A two-unit system with correlated failures and repairs, and random appearance and disappearance of repairman. (English) Zbl 1075.90517 Int. J. Syst. Sci. 27, No. 6, 561-566 (1996). MSC: 90B25 PDFBibTeX XMLCite \textit{R. Gupta} et al., Int. J. Syst. Sci. 27, No. 6, 561--566 (1996; Zbl 1075.90517) Full Text: DOI