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Checklists form the basis of procedural standardization in the airline cockpit, with the help of which safety-critical measures become a routine part of flight crew task management. In this paper, we discuss the normal checklist use and its problems as a socio-material practice. We show how routine problems in checklist use are resolved, and point out how procedural and interactive backups function...
Ex electrical equipment intended to be used in explosive atmospheres shall be selected and/or installed so that it is protected against external influences which could adversely affect the explosion protection (e.g. pressure conditions, chemical, mechanical, vibratory, thermal, electrical, humidity, corrosion). External influences shall be identified as part of the installation design and selection...
Quantitative analysis of wood damages, which influence the reliability and safety of wood structure, was studied by artificial neural networks. It was proved by experiment that three different degree damages of wood can be recognized by neural network in acoustic emission (AE) testing when reasonable neural network was chosen, efficient training case was constructed, reasonable parameter and training...
The construction industry has been facing a paradigm shift to (i) increase; productivity, efficiency, infrastructure value, quality and sustainability, (ii) reduce; lifecycle costs, lead times and duplications, via effective collaboration and communication of stakeholders in construction projects. Digital construction is a political initiative to address low productivity in the sector. This seeks...
The hazards associated with performing maintenance on energized electrical equipment have been the subject of massive amounts of literature as well as the driver for numerous product innovations aimed at mitigating the effects of this hazard. The intent of this paper is to highlight potential personal and environmental dangers associated with this same equipment when it is de-energized. This paper...
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