Product data management is an engineering oriented information system. Engineering change request, engineering change notice, and engineering change control workflow in a product data management system are usually utilized starting from the detail product design phase. Lack of guidelines to identify configuration items and design change control workflow is one of the major reasons for not using...

This paper presents the progress of monolithic technology for microwave application, focusing on gallium nitride technology advances in the realization of integrated power amplifiers. Three design examples, developed for microwave backhaul radios, are shown. The first design is a 7 GHz Doherty developed with a research foundry, while the second and the third are a 7 GHz Doherty and a 7–15 GHz d...

Purpose - This study presents an extension to a model in the literature for lot-sizing and scheduling small foundry with multiple alternate furnaces. The purpose of is minimize delays inventory costs. In addition, it determines best use load capacity Theoretical framework – Lot-sizing foundries marketplace subject academic interest due its applicability mathematical computational complexity. Ma...

Low energy efficiency of foundry class electric arc steelmaking furnaces (EAF) mainly is caused by heat loss massive lining during forced downtime. A low-power transformer doesn’t allow, in the conditions classical technology, practice traditional water-cooled elements order to replace partially lining, what determines increased refractory consumption. The aim and savings. On basis numerical mo...