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Biogas production from crop residues on a farm-scale level: Scale, choice of substrate and utilisation rate most important parameters for financial feasibility

Anaerobic digestion would enable the energy potential of agricultural crop residues such as ley crops, sugar beet tops and straw to be harnessed in Sweden. These residues are so spread out that full utilisation of the potential by centralised slurry-based technology is difficult, its appearing that simple but effective high-solids reactor systems have a better chance of being economically viable o

Is the Hierarchical Structure of Articles 31 and 32 of the Vienna Convention Real or Not? Interpreting the Rules of Interpretation

In the practice of modern international law, if a certain understanding is advanced as the correct interpretation of a treaty provision, the proposition is assessed using the rules of interpretation laid down in the 1969 Vienna Convention on the Law of Treaties, Articles 31–33. This article is concerned with the relationship held in such an interpretation process between the preparatory work of a

Electron Transport in Quantum Dots Defined in Low-Dimensional Semiconductor Structures

Popular Abstract in Swedish I denna avhandling studeras ledningsförmågan hos nanometer-stora kvantprickar tillverkade i halvledarmaterial. Halvledare är material vars ledningsförmåga ligger någonstans mellan ledare (metaller) och isolatorer. I halvledare kan ledningsförmågan ändras med elektriska fält, vilket har möjliggjort utvecklandet av halvledartransistorn. Utvecklandet av halvledartransistorThis thesis focuses on electron transport in single and double quantum dots defined in low-dimensional, narrow-band-gap III-V semiconductor materials. Fabrication schemes are presented for defining single and double quantum dots in lateral InGaAs/InP heterostructures, either by a combination of etching and local gating or solely by local top gating. The quantum dots are here electrostatically conf

Construction and Control of an Educational Lab Process - The Gantry Crane

In this paper, we describe the construction and control of a gantry crane that is used in courses at the Department of Automatic Control, Lund university. Two different models of the crane are developed. A thorough example of path following, including on-line time-varying input/state-transformations and LQG control, used in a laboratory exercise is shown together with experimental results. Time-op

Why refugees still matter: a response to James Hathaway

In a 2007 article, Hathaway relaunched his proposal of a multilateral refugee protection system based on the idea of ‘common but differentiated responsibility’. The 2007 article and an earlier, similar article of 1997 both observe that the proposed system will not provide a back door to ‘permanent immigration’ for refugees.In the proposals, all remaining migration movements are subjected to the co