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Anaerobic digestion of crop and waste biomass: Impact of feedstock characteristics on process performance

Popular Abstract in English In an ever energy hungry world and given the concerns about global warming, depleting reserves of fossil fuels and growing fuel prices, there is an urgent need for alternative renewable energy sources. Biogas production through anaerobic digestion in sync with other bio energy production technologies could replace or partially replace fossil fuels and hence curb greenhoAnaerobic digestion provides an array of positive environmental benefits such as reducing greenhouse gas emissions, replacing mineral fertilizers, producing renewable energy and treating waste. However, pitfalls in anaerobic digestion such as poor methane yields, process instability, process failure and regional shortages of feedstock have limited the full exploitation of the anaerobic digestion p

Göteborgs stifts herdaminne 1620-1999. I. Domprosteriets kontrakt

Biografier över samtliga avlidna präster i Domprosteriets kontrakt, Göteborgs stift 1620-1999, jämte biografiska data och bibliografier även för de levande. Bygger på ett mycket omfattande källkritiskt och historieteologiskt arbete och avspeglar församlingslivets utveckling. Ersätter Skarstedts herdaminne från 1800-talet.

LES of the flow and particle ingestion into an air intake of a jet engine running on the ground

The flow field generated by the flow into a jet engine air-intake, with near ground effects, is considered. The axial inflow in the neighborhood of the ground generates a system of unsteady vortices. Some of these vortices extend from the air-intake towards the ground. Some of these vortices are strong enough to dislocate and even lift small objects from the ground up to the air-intake. The dynami

Med blick på nätnyheter. Ögonrörelsestudier av läsning i nätbaserade tidningar. (Looking at the net news. Eye tracking study of net paper reading)

How do readers interact with net papers? Does the new medium influence our way of searching for news? Does net-paper reading differ from newspaper reading? 12 users were asked to read 2 net-papers at their own pace. The aim of the study was partly to analyse reading behaviour on the Internet, partly to understand some of the underlying rationale and motivation of the behaviour. To achieve this aim

Product life cycle design - a model of integrating environmental aspects into product design and development process at a Swedish industry: adaptive feedback approach

Many people have no doubts about the seriousness of environmental problems in the world. But the most important issue is to find the way in which these problems could be solved. Environmental problems are so complicated that it is not easy to find the right solution. It is important to change current `Western' and also growing `Eastern' consumption and production radically both from technological

Clostridium difficile-associated diarrhoea - aspects of hospital epidemiology and treatment

Popular Abstract in Swedish Clostridium difficile-associerad diarré - aspekter på sjukhusepidemiologi och behandling Sjukhusutbrott av diarré med Clostridium difficile upplev's i Sverige och internationellt som ett betydande problem. C. difficile är en bakterie som normalt kan förekomma i tarmen. Under antibiotikabehandling förstör's den mikrobiologiska balansen i tarmen och C. difficile bakterieClostridium difficile is a spore-forming bacterium that causes antibiotic-associated diarrhoea and is responsible for hospital outbreaks of diarrhoea. In the first study, 173 consecutive isolates of C. difficile collected from 147 patients at Malmö University Hospital during 1995 were typed by AP-PCR to determine whether cross-transmission could explain the increased incidence of Clostridium diffi

Strategier för kommunal hushållning

En av de ständigt aktuella frågorna i den kommunala ekonomiska debatten är den kommunala resultatutvecklingen. Går den att påverka eller är kommuners situation allt för styrd av externa restriktioner? Syftet med denna studie är att inspirera och sprida erfarenheter till kommunala politiker och tjänstemän som har till uppgift att hushålla med kommunens resurser. Två övergripande frågor står i fokus

Iron in Haem Biosynthesis. Structural Studies of Ferrochelatase and Frataxin.

Popular Abstract in Swedish Järn är ett metalliskt grundämne som tillhör övergångselementen i det periodiska systemet. Den kemiska beteckningen är Fe (av det latinska ordet ferrum). Järn har visat sig vara ett väldigt viktigt ämne för i princip allt liv på vår planet. Främst finns det bundet till olika proteiner i form av järnsvavelkluster och hem. Hem är en liten molekyl som finns i de allra fleFerrochelatase catalyses the synthesis of heme by inserting Fe(II) into protoporphyrin IX. The structure of ferrochelatase from yeast has been determined (2.4 Å). The structure is homodimeric with each of the monomer made up of two Rossmann type domains with an active-site cleft between them. Metal binding studies with Co(II) and Cd(II) ions reveal the metal binding residues as being the His-Glu

How the Holy Cross was Found: From Event to Medieval Legend

Studies the origin of the Inventio Crucis legend: the historical events behind it as well as its textual sources and antecedents. A literary interpretation of the text is then attempted, showing that the legend is influenced by Jewish traditions and adversus Iudaeos treatises. Finally, the liturgical texts used to celebrate Inventio Crucis in the Middle Ages are surveyed. Three versions of the Lat

A MEC network method based on the BH curve linearisation: study of a claw-pole machine

The magnetic equivalent circuit network method has been used to analyse the flux distribution and torque response of a novel electrically magnetized synchronous machine without slip-rings. Non-linearities have been included in the model using an iterative approach based on the linearisation of the BH curve, which proves to be very fast. Results at load and no load indicate that the leakage can be