A lot sizing and scheduling problem prevalent in small market-driven foundries is studied. There are two related decision levels: (1) the furnace scheduling of metal alloy production, and (2) moulding machine planning which specifies the type and size of production lots.Amixed integer programming (MIP) formulation of the problem is proposed, but is impractical to solve in reasonable computing t...

In a survey of health and environmental conditions in the Butterley Foundries (Keatinge and Potter, 1945) one of the principal health risks to which the workers were exposed was found to be pneumoconiosis, and it was estimated that the potential dust risk of fettlers was many times greater than that to which other workers in the foundries were exposed. Sixty foundry men, divided into broad occu...

A device composed of two junctions, but operating as a photodiode is designed and implemented in a pre-production 1 μm complementary-metal-oxide-semiconductor silicon technology foundry service. No process modification is performed. Tests are performed at a wavelength of 783 nm. Rise and fall times in the nanosecond range are reported along with sensitivity and bandwidth measurements. The suita...

Microelectronics is the dominant industrial technology of today. Its rate of innovation, spelled out by Moore’s Law, is exceptional by any commercial metric, especially, as it has been on this trajectory for almost 40 years. It is not surprising, that other industrial sectors are taking advantage of the innovation engine of the semiconductors for its own product innovation: Cars are safer and m...

M. Holtzer, B. Grabowska, S. Żymankowska-kumon, D. Kwaśniew skakrólikowska, R. Dańko, W. Solarski, A. Bobrowski, AGH University of Science and Technology, Faculty of Foundry Engineering, Kraków, Poland Procedures have been developed to determine the volume, rate and composition (particularly BTEX: benzene, toluene, ethylbenzene and xylenes and PAHs (polycyclic aromatic hydrocarbons)) of gas evo...

This cross-sectional study was conducted in a foundry factory to assess the prevalence of respiratory symptoms and occupational asthma in foundry workers. Physical examination, spirometric evaluation, chest radiograph, and a questionnaire related to respiratory symptoms were performed. Monitoring of peak expiratory flow rates, spirometric reversibility test, and high-resolution computed tomogra...