In this paper we consider closed loop two-echelon repairable item systems with repair facilities both at a number of local service centers (called bases) and at a central location (the depot). The goal of the system is to maintain a number of production facilities (one at each base) in optimal operational condition. Each production facility consists of a number of identical machines which may f...

This paper considers a point process model with a monotonically decreasing or increasing ROCOF and the underlying distributions from the location-scale family. In terms of repairable system reliability analysis, the process is capable of modeling various restoration types including “better–than–new”, i.e., the one not covered by the popular G-Renewal model (Kijima & Sumita, 1986). The character...

A repairable system can brieey be characterized as a system which is repaired rather than replaced after a failure. The most commonly used models for the failure process of a repairable system are nonhomogeneous Poisson processes (NHPP), corresponding to minimal repairs, and renewal processes (RP), corresponding to perfect repairs. The paper reviews models for more general repair actions, often...

Integrity Maintenance is considered one of the major application elds of rule triggering systems (RTSs). In the case of a given integrity constraint being violated by a database transition these systems trigger repairing actions. However, it has be shown that for any set of constraints there exist unrepairable transitions, which depend on the closure of the constraint set. This implies that int...

An impressive array of paper has been devoted to the reliability properties and the hazard rates of the order statistics along with IFR (increasing failure rate) and DFR (decreasing failure rate) property. However, studies relating to the Bayesian estimation on the repairable system along with IFR property of the failure time distribution and on the repair time distributions have received compa...

We show that locally repairable codes (LRCs) can be list decoded efficiently beyond the Johnson radius for a large range of parameters by utilizing the local error correction capabilities. The new decoding radius is derived and the asymptotic behavior is analyzed. We give a general list decoding algorithm for LRCs that achieves this radius along with an explicit realization for a class of LRCs ...