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— Chatter is an instability phenomenon in machining processes which limits productivity and results in inferior work-piece quality, noise and rapid tool wear. The increasing demand for productivity in the manufacturing community motivates the development of an active control strategy to shape the chatter stability boundary of manufacturing processes. In(More)
Intensive livestock farms emit large concentrations of NH 3 , most of which is deposited very close to the source. The presence of trees enhances the deposition. Rates to down wind forests can exceed 40 kg N ha −1. The steep gradient in large NH 3 concentration and deposition at the edge of a downwind forest to background concentrations 5 within a few(More)
Objectives and aims of the case study This report presents the policy recommendations that follow from the EPINET projects investigations into assessments of ethical, legal and societal aspects of smart electricity grids in the European Union. Its main objective has been to evaluate the state-of-the-art in assessments in this domain, especially focusing on(More)
Biogeosciences Discussions This discussion paper is/has been under review for the journal Biogeosciences (BG). Please refer to the corresponding final paper in BG if available. Abstract A comprehensive assessment of nitrogen (N) flows at the landscape scale is fundamental to understand spatial interactions in the N cascade and to inform the development of(More)
— In this paper, we experimentally demonstrate an extremum-seeking control strategy for nonlinear systems with periodic steady-state outputs, for the adaptive design of variable-gain controllers. Variable-gain control can balance the tradeoff between low-frequency disturbance suppression and sensitivity to high-frequency noise in a more desirable manner(More)
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