In this paper, a real maintenance workforce-constrained scheduling problem is formulated as a bi-objective mixed-integer programming model with the aim of simultaneously minimizing the workforce requirements and maximizing the equipment availability. The skilled workforce is provided by internal and external resources using regular time, overtime and contracting. The equipment availability is m...

Failure propagation analysis is the cornerstone to assure safe operation, predicative maintenance for equipment integrated system. Study the failure propagation mechanism of complex system on the basis system directed network constructed. The grade diffusing process widely used is described with the fault propagation probability and constrains. According to the fault information of nodes and ed...

In this paper, it is proposed to develop the fault diagnosis system using the principal component analysis (PCA) for the intelligent operation support system that calculates the effect of fault propagation in abnormalities situation and gives appropriate information to plant operators. This proposed system using PCA discriminates a failure of equipment based on process variables. The proposed m...

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...

Accidents involving rotating equipment in chemical, petrochemical, petroleum, and gas plants can result in damage to other process equipment and catalysts along with lost production. Conversely, process upsets, process instrumentation failure, or failures of other process equipment can result in damage to rotating equipment. An effective rotating equipment loss prevention program will be an int...

This paper presents an analytical method for evaluating the throughput of a production line composed of two reconfigurable machines separated by a finite capacity buffer. This means that each machine is composed of essential and non essential equipment. The failure of any essential equipment induces the shutdown of the entire machine. The failure of the non essential equipment implies the conti...