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Petri net Analysis of Batch Recipes Structured with Grafchart

Grafchart is a graphical language aimed a sequential control applications. The language is implemented in a toolbox and it has been developed at the Department of Automatic Control in Lund, Sweden since 1991. The language is based on Grafcet and Petri nets and it can be used for sequential control applications on both the local and the supervisory level. The main application so far, has been batch

En lysande begåvning i statens tjänst

A critical review of the publication of a selection of Axel Oxentierna's letters ("Brev 1636-1654"), as well as a brief review of Gunnar Wetterberg, "Axel Oxenstierna. Makten och klokskapen".

Social Movements, Identities and Social Classes

This research will explore the field of social movements by explaining why and how a minority social movement persists despite persistent constraints placed upon it by a majority-dominated state. The Chinese education movement has been one of the largest and most sustained social movements in Malaysia. Sociological, economic, and demographic changes of the Chinese community along with domestic pol

Impact of Functional Models in a Decision Context of Critical Infrastructure Vulnerability Reduction

Critical infrastructures provide essential services for the functioning of the society, and vulnerability analysis is an important basis for decisions concerning increasing their robustness against strains. Since critical infrastructures can be regarded as complex systems, such analyses can prove challenging. To analyze the system response to strains, several different functional models have been

Finite element simulation of mechanical and moisture-related stresses in laterally loaded multi-dowel timber connections

Numerical simulations of stress distribution within a moment stiff timber frame corner have been performed. The frame corner is a multi-dowel connection with two slotted-in steel plates. The interaction between the fasteners and the wood material is modelled as a full contact interaction based on penalty formulation. The wood material is assumed to be an orthotropic material in reference to elasti