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Diffusion of gas molecules into cavities closed by anodic bonding has been quantified by annealing of specially designed test structures. Annealing has been performed at temperatures in the range 150-430oC for several days. An increased concentration of molecules within the closed cavities after...

With the global warming being of concern, recycling of aluminum by new solid-state recycling techniques instead of conventional remelting and subsequent refining processing has been taken into account. Solid-state recycling processes such as extrusion and compaction at room or moderate temperature...

In this paper, we provide an overview of the natural gas value chain, modeling aspects and special properties that provide challenges when doing economic analysis. We present a simple value chain optimization model and discuss important properties of this model....

The rheological and material parameters determining the pumpability of fresh self-compacting mortar have been studied. A full-scale set up was used with 50 mm rubber hoses fed by a screw pump delivering a constant concrete flow rate and pressure for a given pumping frequency, hose diameter and...

This paper investigates the controllability properties of planar snake robots influenced by viscous ground friction forces. The paper provides three contributions: 1) A partially feedback linearized model of a planar snake robot is developed. 2) A stabilizability analysis is presented proving that...

In this paper we give an inroduction to modelling the natural gas value chain including production, transportation, processing, contracts, and markets. The presentation gives insight in the complexity of planning in the natural gas supply chain and how optimization can help decision makers in a...

This paper presents the SnakeFighter concept and describes the generic element within this concept in the form of a water hydraulic snake robot. Applications of a SnakeFighter system are presented with focus on fire intervention tasks. The development of a water hydraulic snake robot that...