Due to expensive, highly complex and timeconsuming processes, semiconductormanufacturing systems have been given a special attention. In our previous work [5], a heuristic algorithm to design the reconfigurably automated production system was proposed. However, machine breakdowns and planned and unplanned maintenance were not considered. This paper extends that work and addresses the related de...

We consider a make-to-stock production-inventory model with one machine that produces stock in a buffer. The machine is subject to breakdowns. During up periods, the machine fills the buffer at a level-dependent rate α(x) > 0. During down periods, the production rate is zero, and the demand rate is either β(x) > 0 or γ(x) > 0 when the inventory level is x; which of the two demand rates applies ...

The quality of maintenance is an important parameter in the performance of industrial production plants. Good monitoring of the deterioration in rotating machinery can result in reduced maintenance costs by minimizing the number of bad judgments and decreasing in the number of spare parts. An effective system of maintenance should be able to monitor parameters such as vibration, temperature, oi...

We consider the single machine scheduling problem with dynamic job arrival and total weighted tardiness and makespan as objective functions. The machine is subject to disruptions related to late raw material arrival and machine breakdowns. We propose a proactive-reactive approach to deal with possible perturbations. In the proactive phase, instead of providing only one schedule to the decision ...

This paper addresses the stable scheduling of multi-objective problem in flexible job shop scheduling with random machine breakdown. Recently, numerous studies are conducted about robust scheduling; however, implementing a scheme which prevents a tremendous change between scheduling and after machine breakdown (preschedule and realized schedule, respectively) can be critical for utilizing avail...

BACKGROUND: Communication breakdowns are a common threat to surgical safety, but there are little data to guide initiatives to improve communication. STUDY DESIGN: In surgeon-review of 444 surgical malpractice claims from 4 liability insurers, we identified 60 cases involving communication breakdowns resulting in harm to patients. Two surgeonreviewers analyzed these cases to identify common cha...

The occurrence of vacuum arcs or radio frequency (rf) breakdowns is one the most prevalent factors limiting high-gradient performance normal conducting rf cavities in particle accelerators. In this paper, we search for existence previously unrecognized features related to incidence by applying a machine learning strategy cavity data from CERN's test stand Compact Linear Collider (CLIC). By inte...