PRECON S.A. is a manufacturing company devoted to produce prefabricated concrete parts for several industries as railway transportation and agricultural industries. Recently, PRECON S.A. signed a contract with RENFE, the Spanish National Railway Company, to manufacture pre-stressed concrete sleepers for the sidings of the new railways of the high speed train (AVE). The scheduling problem associ...

This article presents a quality improvement study applied at a yarn manufacturing company based on six sigma methodologies. More specifically, the DMAIC (Define, Measure, Analyze, Improve, and Control) project management-methodology & various tools are utilized to streamline processes & enhance productivity. Defects rate of textile product in the yarn manufacturing process is so important in in...

The global economic constantly changing and the advent of new technologies imply the demand of changing in the business pattern of manufacturing industry. Nowadays, most manufacturing companies have realized the importance of collaboration between dispersed factories, different suppliers and distributed stakeholders, in a quick, real-time and effective manner. Cloud computing is an evolution of...

Virtualization is critical for resource sharing and dynamic allocation in cloud manufacturing, a new service-oriented networked collaborative manufacturing model. In this paper, an effective method is proposed for manufacturing resources & capabilities virtualization, which contains manufacturing resources modeling and manufacturing cloud services encapsulation. A manufacturing resource virtual...

Laboratory scale studies have repeatedly reported high P-retention in slag, a by-product of the steel manufacturing industry. Thus, it has emerged as a potential material to increase P-removal from constructed wetlands (CWs). However, several limitations were highlighted by field experiments, including the high pH of treated water and clogging. We hypothesized that the addition of sedimentary r...

The Lubrizol Corporation is a specialty chemical company with headquarters near Cleveland, Ohio. Lubrizol was founded over 60 years ago and has enjoyed a reputation for being a leader in the innovative development of specialty chemicals for use in industry and agriculture. A small manufacturing facility is located on the corporate headquarters site. Two large manufacturing facilities complete t...

The Plywood company in this study was able to produce 6,000m3/ year of plywood, but during 2018 and 2019 only provide 2,905.14 m3/year 1,120.73 m3/year. Production is far below the production capacity. This research will apply lean manufacturing concept process a plywood company. uses value stream mapping (VSM), analysis tools (VALSAT), activity (PAM), Pareto diagrams, root cause analysis. It f...