Fault prediction is the precondition of Condition Based Maintenance (CBM), accurate prediction for equipment can not only make warning before failure occurs, but also reduce the cost of maintenance of complicated equipment and system. Therefore, it is of profound importance to make research on fault prediction of electronic equipment. This paper analyses some typical fault prediction method of ...

In this article we develop a model to help a maintenance decision-making situation of a given equipment. We propose a novel model to determine optimal life-cycle duration and intervals between overhauls by minimizing global maintenance costs. We consider a situation where the customer, which owns the equipment, may negotiate a better warranty contract by offering an improved preventive maintena...

background and aim. knowledge of the common radiographic errors and their prevention could prevent imposing redundant radiation, time and money to patient and the dentist. the aim of this study was to assess the common radiographic errors on panoramic radiographs in a radiology department. materials and methods. 250 panoramic radiographs (100 male and 150 female; mean age, 24.3) taken at the de...

In the oil industry, productivity of wells depends on performance sub-surface equipment system. These systems often have problems stemming from sand, corrosion, internal pressure variation, or other factors. order to ensure high and avoid high-cost losses, it is essential identify source possible failures in early stage. However, this requires additional maintenance fees human power. Moreover, ...

Aim: To discover the perceived level of nursing interruptions during care activities. The study evaluates contributing factors alarms, equipment failures, visitors, and telephone calls in predicting according to site nurses’ work. It also examines potential association demographic nurses with interruption levels. Design: A cross-sectional study. Methods: included working at a tertiary hos...

In this study the equipment lease contract, where two players, lessor, to user (lessee), if fails exceed tolerance agreed by both players during period and needs be repaired, it is considered detrimental lessee, because results in a loss of potential revenue will received from leased equipment. Therefore, total income lessor contract may incur penalty costs as consequence for failure maintain m...