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An Impedance Tuning Unit (ITU) has the ability to tune the impedance of for instance the antenna to better match another impedance. To effectively characterize a circuit containing an ITU, several functions in a measurement system need to be remotely controlled. In this paper such a measurement system is described. A line tune screw creates impedances for the ITU to match and a digital acquisition

Sustainable development was defined by the Bruntland Comission as a 'development that meets the needs of the present without compromising the ability of future generations to meet their own needs' (WCED1 , 1987, p. 8). In the report 'Our Common Future' the Bruntland Commission proposed policies for a 'World Programme for Change' (WCED, 1987). At the UNCED2 , conference in Rio 1992, proposals were

This article explores the use of sustainability criteria for biomass as a tool to promote and safeguard sustainability of this product. Much attention is paid to the issues that sustainability criteria for biomass should consider. Among them the priority for food supply and food security, the emission reduction of green house gases (GHG) through the whole production chain, the preservation of area

A discussion about biographical methods and a comparision between my biography of Oscar I, swedish king 1844-1859, and my biographies of women in the 1900-th century.

This study considers detection of polyproline type II secondary structures from protein sequences. This difficult problem was handled with multilayer perceptron neural networks, which were found to be useful for such bioinformatics studies. Polyproline II secondary structures have not previously been tried to be predicted from sequences.

Popular Abstract in Swedish Under den geologiska period som kallas kvartärtiden (de senaste 2,6 miljoner åren) har flera istider (glacialer) och mellanistider (interglacialer) avlöst varandra enligt ett mönster där glacialerna varar i ungefär 100000 år och mellanistiderna i ca 10000 år. Under istiderna täcktes stora landområden på norra halvklotet, bl.a. Skandinavien, av väldiga inlandsisar. Då deThe aim of this thesis was to reconstruct the Holocene vegetational and climatic development in the Sylarna-Storulvån area, western Jämtland, in the central Scandes Mountains. Temporal trends and fluctuations in the elevation and vegetational character of the tree-limit ecotone were studied mainly by means of pollen and plant macrofossil analysis of two lake sediment sequences (Lakes Stentjärn and