Results 241 to 250 of about 733,404 (291)

Impact of subgroup classificuation accuracy on detecting heterogeneous treatment effects in Staphylococcus aureus bacteraemia: A simulation study

Hamilton F, Ong S, Swets MC, Russell CD, Underwood J.   +4 more
europepmc   +1 more source

Warranty Servicing With Imperfect Repair

International Journal of Production Economics, 2008
A manufacturer of a product sold with warranty incurs additional costs from the servicing of warranty claims made by customers. These costs depend on several factors such as the reliability of the product, the warranty terms, the maintenance actions of the customers, and the servicing strategy used by the manufacturer.
D N P Murthy, Won Young Yun, N Jack
exaly   +6 more sources

Maintenance Policies for Protection Systems With Imperfect Inspection and Imperfect Repair

Reliability Engineering and System Safety
In this study, we investigate the optimal maintenance policies for stochastically deteriorating protection systems with imperfect inspections and imperfect repairs. We model the system's degradation as a continuous-time Markov chain with three states: good, poor, and failed.
Salih Tekin
exaly   +6 more sources

A General Imperfect Repair Model Considering Time-Dependent Repair Effectiveness

IEEE Transactions on Reliability, 2012
Kijima I and Kijima II models are two important imperfect repair models in literature. These two models use one constant parameter to represent the degree of repair, which is called Repair Effectiveness (RE) in this paper. We developed a more general imperfect repair model by extending the constant RE to a time-dependent function based on the virtual ...
Uday Kumar
exaly   +4 more sources

On Degradation-Based Imperfect Repair and Induced Generalized Renewal Processes [PDF]

Test, 2021
In this paper, we suggest and justify a new, basic approach to modelling the imperfect repair and the corresponding imperfect repair processes for items with observable degradation.
Maxim Finkelstein, Ji Hwan Cha
exaly   +4 more sources

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On the Optimal Degree of Imperfect Repair

Reliability Engineering and System Safety, 2015
Abstract A simple cost-wise comparison between the minimal and perfect repair of a system is discussed first using a relevant example. The main focus of this note, however, is on imperfect (general) repair. The best repair for our system in this case is defined as the one that corresponds to the optimal level (extent) of repair actions that minimize ...
Maxim Finkelstein
exaly   +2 more sources

Selective Maintenance for Binary Systems Under Imperfect Repair

Reliability Engineering and System Safety, 2013
In many industrial environments like manufacturing systems, military equipments, power generation systems, etc., system maintenance is performed between successive missions.
Ming J. Zuo, Ramin Moghaddass, M K Tiwari   +2 more
exaly   +2 more sources

Multivariate Imperfect Repair

Operations Research, 1986
In this paper, we consider models of systems whose components have dependent lifelengths and are imperfectly repaired upon failure until they are scrapped. First, assuming that no more than one component can fail at a time, we study two models that describe imperfect repairs, and derive the resulting density and other probabilistic quantities of ...
Moshe Shaked, J. George Shanthikumar
openaire   +2 more sources