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Repairable inventory is an important research field of improving operational readiness and reducing LCC (life cycle cost) for equipments. In spite of the sophisticated models and techniques were developed to manage the spares parts inventory in a multi-echelon system successfully, some restrictions still exist on its application to real case problems. To surpass some of these limitations a simulation...
In this paper we present a novel approach of using mathematical models and stochastic simulations to guide and inform security investment and policy change decisions. In particular, we investigate vulnerability management policies, and explore how effective standard patch management and emergency escalation based policies are, and how they can be combined with earlier, pre-patch mitigation measures...
Generalized stochastic Petri net model is proposed for support system with a classic structure of three-echelon repair and two-echelon inventory. Based on Petri net workflow models of various maintain processes, extendable queue models with generalized queuing time concept are presented to analyze performance equivalent time. A strategy of spare parts inventory minimizes the number of backorder for...
This article presents a set of conventional approaches to the modelling of dysfunctioning of a process in the context of maintenance activities. It recalls advantages and disadvantages in their use. The normative framework of maintenance, the priorities of the long-term maintenance and the content of the maintenance function will also be presented. This paper presents a state of the research of usual...
We demonstrate a ldquotrading time for signalrdquo approach for the measurement of species-specific optical transmission, in ambients rich in particulates, using the example case of a turbulent fluidized bed reactor. The method is introduced on the basis of Monte Carlo simulations, as well as analysis of experimental data, of beam propagation for a range of path lengths, and particle concentrations...
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