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Analysis of fan-assisted natural ventilation in schools

During the last decade, a new design of schools with fan assisted natural ventilation has been introduced. Experience and knowledge of this type of ventilation system is therefore needed. The objective of the project is to study the technical and physical conditions required to ensure satisfactory ventilation. The whole project includes analyses of the air flows for different combinations of outdo

Software code generation for dynamic dataflow programs

In this paper we address the problem of generating efficient software implementations for a large class of dataflow programs that is characterized by highly data-dependent behavior and which is therefore in general not amenable to compile-time scheduling. Previous work on implementing dataflow programs has emphasized classes of stream processing algorithms that exhibit sufficiently regular behavio

Heterofobi - ett uttryck för homofobi

Artikel som utreder användandet av ordet "heterofobi" och kategoriserar användandet som ett uttryck för a)kvinnofientlighet, b) att det är synd om heterosexuella c) gammal hederlig homofobi.

U.S. Antidumping against Japanese Steel

Dumping is generally considered an unfair practice and through the Antidumping Agreement of the GATT many governments offer protection to domestic producers against dumped goods. In 1992 and 1998 large amounts of steel entered the U.S. at low prices, and large amounts of antidumping investigations were initiated in order to curb the surge of imports flooding the country. The increase in steel imp

Three species of Caloplaca in Australia with different reproductive models.

The distribution of Caloplaca bassiae, C. cinnabarina and C. cupulifera occurring on the Australian continent is discussed. These species have different ways of reproduction with isidia, soredia or with ascospores. The fertile species, Caloplaca cinnabarina, is the most widely spread. Distribution maps for Australia and the world are provided.

Reliability of Wireless Mesh Networks with directional antennas

The paper is devoted to modeling and optimization of reliable wireless mesh networks that employ directional antennas. We introduce two mixed-integer programming formulations that allow to simultaneously characterize routing patterns and transmission schedules. The first model allows for maximizing the minimal flow in a network. The second model involves reliability constraints and aims at minimiz

Phenotypes and genotypes in families with hereditary tapetoretinal degenerations

Popular Abstract in Swedish (Populärvetenskaplig sammanfattning) I Skandinavien drabbas 1 av 3 000 människor av en ärftlig näthinnedegeneration som ofta leder till en grav synnedsättning och inte sällan till blindhet. Orsaken är att näthinnans ljuskänsliga celler långsamt förtvinar. Vi kan ännu inte bota dessa sjukdomar. Det finns många olika varianter av ärftlig näthinnedegeneration, vilket gör The purpose of the study was to characterise the phenotype with emphasis on electroretinography in four different types of hereditary retinal degeneration and to correlate it to a genotype when possible. Two methods were used: full-field electroretinography for objective assessment of retinal function and mutation screening of blood samples for detection of gene alterations. Electroretinograms fro

Nutrient cycling in agroecosystems: nitrogen cycling in southern Sweden in the 1850s and two Tanzanian villages in the 1990s

Popular Abstract in Swedish För analys av agroekosystems näringsämnescirkulation presenteras här en generell modell. I centrum står födoproduktionsintensitet, mänsklig bärförmåga, uthållighet och effektivitet. Modellen kan användas på system med flera markanvändningstyper och är därför lämpad för studier i olika skalor. Jämförelser av alla slags agroekosystem, oavsett tid och rum, är möjliga. OlikThis study presents a general model for analysing nutrient cycling in agroecosystems. The focus is on food production intensity, human carrying capacity, sustainability and efficiency. The model can be used on systems including different kinds of land uses, which makes it applicable for studies on different scales. Comparisons of all kinds of agroecosystems, independent of time and place, are made

A game model of logistics network management

In this paper, the author discusses the most common approaches to the supply chain problem. The author argues that they rest on static ideas while the supply chain network is better viewed as an ongoing activity for which the suggested methods are inappropriate. Hence, none of the popular methods has a suitable model of the problem. Instead he suggests infinite games as a computational model for t

Interaction of some molecules with complex surfaces

This thesis investigates the adsorption, decomposition and reactions of small molecules on flat, oxidised and vicinal surfaces of late transition metals. The main technique for these studies is high resolution core level spectroscopy (HRCLS). All the studies presented in the thesis are performed in Ultra High Vacuum (UHV). The articles can be divided into three groups. The first three articles dea

The Vergegenkunft Archive / A Futuristic Archaeology

The essay discusses the American artist Jane Philbrick's exhibition "Everything Trembles" at The Museum of Sketches – Archive of Public Art, Lund University (2009), from the point of view of the museum, its founder Ragnar Josephson and his idea of "the birth of the work of art", and the creative process.