Introduction The main goal of this study was to perform quality control test on all radiography units operating in Golestan province of IRAN. Materials and Methods Forty-four X-ray units were examined based on general accepted programs for quality control. Eight parameters including kVp accuracy, kVp reproducibility, mA-time reciprocity, exposure linearity, exposure reproducibility, timer accur...

Maintenance is one of the important activities in any industry. In a large industry, in order to prioritize the maintenance action, we need to identify the critical equipments. The present paper has explored to identify the critical equipments of a coal based power plant and rank them accordingly. Multiple criteria like: environmental impact (EI), customer inconvenience (CI) and maintenance cos...

This paper describes a micro-grid system and its monitoring system. This micro-grid system consists of generation systems, consumer electrical equipments, auxiliary equipments and the monitoring system. All the equipments have 485 communication interfaces. In order to monitor and manage this micro-grid system, we built a monitoring system, which contains modular instrument system and industrial...