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作者:Saminu I. Bala , Ibrahim Yusuf , Yasin Ali Nuhu
来源:[J].International Journal of Applied Mathematical Research, 2017, Vol.6 (3), pp.67-73SPC
摘要:The paper deals with modeling and performance evaluation of a series-parallel with independent failures using Markov Birth-Death process and probabilistic approach. The system consists of three subsystems arranged in series and parallel configurations with three possible states, ...
作者:Saminu I. Bala , Ibrahim Yusuf
来源:[J].International Journal of Applied Mathematical Research, 2017, Vol.6 (3), pp.74-79SPC
摘要:The paper deals with modeling and performance evaluation of a series-parallel system using Markov Birth-Death process and probabilistic approach. The system consists of four subsystems arranged in series-parallel with three possible states, working with full capacity, reduced cap...
作者:Ibrahim Yusuf , U.A. Ali ...
来源:[J].International Journal of Applied Mathematical Research, 2017, Vol.6 (3), pp.80-84SPC
摘要:The paper deals with availability comparison between three dissimilar photovoltaic configurations using Markov Birth-Death process and probabilistic approach. The configurations consist of four subsystems arranged in series-parallel with three possible states; working with full c...
作者:Nura Jibrin Fagge , Ibrahim Yusuf , U.A. Ali
来源:[J].International Journal of Applied Mathematical Research, 2017, Vol.6 (1), pp.14-19SPC
摘要:With advancement of modern science and technology, complex systems connected to an external supporting device for their operations have been manufactured to meet the demand of industries, economic growth and populace in general. Companies and organizations heavily rely on these s...
作者:Ibrahim Yusuf , Nafiu Hussaini , Bashir M. Yakasai
来源:[J].International Journal of Applied Mathematical Research, 2014, Vol.3 (1), pp.23-29SPC
摘要:In this paper, we studied some reliability characteristics of a repairable 3-out-of-4 system with three modes: normal, deterioration and failure modes. The deterioration mode could be slow or fast. Failure and repair time are assumed to be exponential. We develop the explicit exp...
作者:Ibrahim Yusuf
来源:[J].International Journal of Applied Mathematical Research, 2012, Vol.1 (4), pp.510-519SPC
摘要:Studies on two unit repairable standby system dealing with availability and profit analysis involving preventive maintenance are numerous. However little attention is paid on the study of evaluation of reliability characteristics such as availability, busy period and profit funct...
作者:Ibrahim Yusuf , Bashir Yusuf
来源:[J].International Journal of Advanced Statistics and Probability, 2013, Vol.2 (1), pp.1-14SPC
摘要:In this paper, probabilistic models for two dissimilar redundant systems with replacement at each common cause failure have been developed to analyze and compare some reliability characteristics. Two configurations are studied under the assumption that each system is replaced at ...
作者:Ibrahim Yusuf
来源:[J].International Journal of Basic and Applied Sciences, 2012, Vol.1 (3), pp.314-320SPC
摘要:This paper presents the reliability and mean time to failure estimation of a deteriorating system that deteriorates with time. The system is two unit active parallel system where the units operates simultaneously. In this study maintenance is not allowed to the system. Laplace tr...
作者:Ibrahim Yusuf , Saminu I. Bala
来源:[J].International Journal of Basic and Applied Sciences, 2012, Vol.1 (4), pp.523-533SPC
摘要:In this study models for mean time to system failure and availability have been developed to study the effect of failure rate on some measures of system effectiveness. Using Chapman Kolmogorovs forward equations methods, explicit expressions for measures of system effectiveness l...

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