In this paper, a timed place Petri-net (TPPN) mode l for fEezible manufacturing systems with the components of machines, limited buffers, robots and the material handling systems, Automated Guided Vehicles (AGV’s} is constructed. Since a firing sequence of the TPPN from the initial marking t o the final marking can be seen as a schedule of the modeled FMS, b y using an A’ based search algorithm...

We have previously described a “pattern language” consisting of nearly eighty components, which will be referred to here as the “PTTES Collection” (see Pont, 2001; Pont and Ong, in press). This language is intended to support the development of reliable embedded systems: the particular focus of the collection is on systems with a time triggered, co-operatively scheduled (TTCS) system architecture.

Increasing customer demands and product diversity as well emerging technologies market trends, such the establishment of new driveline technologies, like e-mobility or hydrogen, present challenges for manufacturing companies in commercial vehicle industry. Consequently, must strengthen their focus to aspect flexibility within processes. This paper contributes state art flexible research, which ...

Background. The aims were to evaluate the importance of the formal competence of the emergency department physician, the patient's time of arrival at the emergency department, and the use of a structured schedule for investigation of patients with acute abdominal pain. Methods. Patients attending the Mora Hospital with acute abdominal pain from 1997 to 2000 were registered prospectively accordi...