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Recently, Burger et al. (2011) developed a new 1-D SST model which allows for more realistic predictions of the sludge settling behaviour than traditional 1-D models used to date. However, the addition of a compression function in this new 1-D model complicates the model calibration. This study aims to report advances in the calibration of this novel 1-D model. Data of the evolution of the sludge

In 2012 Google started a campaign to make parts of its infrastructure visible. Up until that year the company’s data centers had been highly secret facilities hidden from the public eye. The visualization campaign was mainly based on stories and images distributed via the Internet. The images were often suggestive, invoking both enchantment and trust. The text starts by pointing out and discussin

A priori calculations of phonon broadening of core levels in metals are presented. The effects of nonlinear screening and higher-order couplings are taken into account for the first time. The nonlinear screening effects are very important for Li and must be accounted for in order to obtain agreement with experiment.

This paper discusses whether the Western democracy promotion project of exporting civil society to the Balkans is a form of colonialism. In particular, it deals with they system of project life, and project culture which has structured Western development interventions. Examples come from the author's own work as consultant in Bosnia, Albania and Romania in the field of civil society/NGO developme

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Popular Abstract in Swedish Ovan jord & under ytan Sandstäpp är en hotad växtmiljö eftersom arealen av sandstäpp minskat avsevärt sedan Linnés tid (1700-talet). Vi ställde oss frågan varför den har minskat. För att kunna besvara den måste vi förstå vad växtarterna behöver och förstå hur kemin i marken fungerar. Dessutom vill vi lära oss hur markens organismer påverkas av minskningen av sandstSandy, calcareous grasslands are species rich temperate semi-natural grasslands. The species composition in 136 plots was analysed in relation to soil chemistry parameters; extractable P and N, soil pH and lime content. We found that that acidification and decalcification decrease species diversity and the number of red-listed species in these sandy grasslands. The microbial community was investig

This paper discusses aspects of technological change and the path towards institutionalization of new innovations, with a focus on how users matter and are part of the co-construction of such change. An empirical example from the security industry is used to illustrate how two distinct phases in the analog-to-digital shift in video surveillance technology have had very different outcomes with resp

New theoretical developments in impurity lattice dynamics are presented, with the emphasis on phonon broadening of core levels in metals. Detailed calculations have been made for Li and Na. The effects of non-linear screening are evaluated for the first time and are shown to increase the phonon broadening by about 70% for Li compared with the linear-screening value. The present a priori estimate o