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Digital elevation models (DEMs) can be captured and analysed by various methods. Elevation capturing with RTK-GPS and airborne laser scanning is presented and evaluated in terms of height accuracy of raw data and interpolated DEMs for study sites in Sweden and Germany. Applications for precision agriculture are based on the connection of land surface and the movement of water in the landscape. Thr
Pheromone-based monitoring could be a very efficient method to assess the conservation status of rare and elusive insect species, but there are still few studies for which pheromone traps have been used to obtain information on presence, abundance, phenology and movements of such insects. We performed a mark-recapture study of two threatened saproxylic beetles, Osmoderma eremita (Scarabaeidae) and
Both spring temperature and date of the first Starling Sturnus vulgaris egg were highly correlated between different study sites and weather stations in the southern half of Sweden. In southern Sweden, but not in northern Sweden, onset of breeding correlated strongly with spring temperature, particularly during the last ten days of April, the period that happens to coincide with the start of breed
This study sheds light upon how memes about rioting in present-day Belfast are read by their audiences. As such, it answers to a distinct research gap in the meme studies literature, which has mostly shied away from in-depth engagements with audiences, favouring instead the intertwined concepts ‘imagined audience’ and the ideological ‘directionality’ of memes. Drawing on semi-structured interviews
Collecting detailed hydrogeological data before, during, and after remediation campaigns is essential for effective management and monitoring of contaminated sites. As in-situ remediation injection treatment becomes more popular, recording the hydraulic response during these events offers an opportunity to collect detailed data on hydrogeological parameters. Often, multiple injections are performe
With the sustainable potential of the city as a starting point, this thesis examines brownfield redevelopment in an existing urban context. The Nørrebro neighborhood of Copenhagen serves as a case. The focus is on learning from and reinterpreting existing urban structure, hierarchy, density and scale. Legislation allowing car free development at the chosen site, Vingelodden, also prompts explorati
Non-covalently molecularly imprinted polymers (MIPs) for beta(2)-amino acids were prepared for the first time. N-(2-chlorobenzyloxycarbonyl)-(R)-beta(2)-homophenylalanine (N-2-ClZ-(R)-beta(2)-HPhe)was imprinted with methacrylic acid (MAA) and/or 4-vinylpyridine (4-VPy) as the functional monomers, with ethylene glycol dimethacrylate ( EDMA) as the cross-linker. The MIPs made with different ratios o
Atmospheric new particle formation (NPF) is an important phenomenon in terms of global particle number concentrations. Here we investigated the frequency of NPF, formation rates of 10 nm particles, and growth rates in the size range of 10–25 nm using at least 1 year of aerosol number size-distribution observations at 36 different locations around the world. The majo
Naturliga metanutsläpp sker från våra våtmarker världen över. Metan produceras naturligt genom nedbrytning i de syrefria förhållanden som en våtmark erbjuder. För att bättre kunna modellera och skala upp hur mycker metan som faktiskt släpps ut från dessa våtmarker måste ytterligare förståelse skapas över varför metanutsläppen varierar så kraftigt både i tid och rum. Denna studie försöker öka förstMethane emissions from natural wetlands are an important contributor to methane levels in the atmosphere. These emissions are highly variable in time and space, even within sites. Further understanding of this variation is vital to successfully model the overall methane emissions from wetlands. This study investigates spatial variation through measurements of 22 plots across Fäjemyr bog. Manual me
This paper presents a selection of epigraphic documents dispersed over three quarry faces (C11–C13) in the Main Quarry (Q34) at Gebel el-Silsila’s east bank, dating from the reign of the Emperor Augustus. The aim is to describe and decipher the various marks and depictions, and to translate the Demotic and Greek texts, in order to determine for what structure the stone from the quarry was intendedThis paper presents a selection of epigraphic documents dispersed over three quarry faces (C11–C13) in the Main Quarry (Q34) at Gebel el-Silsila’s east bank, dating from the reign of the Emperor Augustus. The aim is to describe and decipher the various marks and depictions, and to translate the Demotic and Greek texts, in order to determine for what structure the stone from the quarry was intended
Portfolio optimization involves a tradeoff between maximizing expected returnand minimizing risk. In practice, useful formulations also include various costs and constraints that regularize the problem and reduce the risk due to estimation errors, resulting in solutions that depend on a number of hyperparameters. As the number of hyperparameters grows, selecting their value becomes increasingly imPortfolio selection involves a trade-off between maximizing expected return and minimizing risk. In practice, useful formulations also include various costs and constraints that regularize the problem and reduce the risk due to estimation errors, resulting in solutions that depend on a number of hyperparameters. As the number of hyperparameters grows, selecting their value becomes increasingly imp
Previous research has shown that it is possible to decarbonise Sweden's road transport sector. This study develops a scenario based method and analyses the influence of external factors on energy security, focusing on passenger and freight transport. It does so by analysing the vulnerabilities and capabilities of five different climate mitigation strategies, investigating previous security scenariPrevious research has shown that it is possible to decarbonise Sweden's road transport sector. This study develops a scenario based method and analyses the influence of external factors on energy security, focusing on passenger and freight transport. It does so by analysing the vulnerabilities and capabilities of five different climate mitigation strategies, investigating previous security scenari
Den elektroniska handelns expansion, vilken vi ännu endast sett upptakten till, kräver uträtande av åtskilliga frågetecken från skattemässig synpunkt. Skattesystemen av idag utformades i ett samhällsklimat, i vilket handel re-gelmässigt bedrevs utifrån fysiska förankringspunkter, och gällande regler låter sig sällan tillämpas obehindrat i en elektronisk affärsmiljö, präglad av anonymitet och en oj
Over the last decade the music festival sector grew enormously: in 2008 over a million festivalgoers gathered in the UK to share music and companionship. However in doing so musicfestivals generate large volumes of waste streams and consume large quantities of resources. Amusic festival of more than 40 000 people will produce in the order of 2000 tons of CO2e –with audience transportation and on s
Populärvetenskaplig sammanfattning: Städernas hårdgjorda ytor hindrar nederbörd från att infiltrera ner i marken, vilket ger dagvatten som måste tas om hand. I och med ett framtida ändrat klimat kommer vintrarna i Skåne att bli varmare, med mer regn och mindre snö och antalet dagar med kraftig nederbörd att bli fler. Med mer intensiva regn ökar risken att städernas vattenledningsnät översvämmas. ÖIn cities hard surfaces prevent rainwater from infiltrating to the ground, which causes runoff,stormwater, that needs to be taken care of. With future changes in climate patterns winters in Scania, southern Sweden, will be warmer, with more rain and less snow and more days with more than 10 mm of precipitation. More intensive rains increase the chance of flooding of urban drainage systems. Open se
A combined experimental/numerical method for determination of constitutive parameters in high strain-rate material models is presented. Impact loading, using moderate projectile velocities in combination with small specimens (sub mm) facilitate tensional strain rates in the order of 10(4)-10(5) s(-1). Loading force is measured from one-dimensional wave propagation in a rod using strain gauges and A combined experimental/numerical method for determination of constitutive parameters in high strain-rate material models is presented. Impact loading, using moderate projectile velocities in combination with small specimens (sub mm) facilitate tensional strain rates in the order of 104–105 s−1. Loading force is measured from one-dimensional wave propagation in a rod using strain gauges and deform
Starting from the assumption that citizenship is propertythat would be more valuable if it were transferable, the paper explores the idea of commodification of citizenship. The paper provides arguments in favor of commodification and recommendations to how the market for citizenships should be designed. A market for citizenships could result in an improved matching between employer and employee whStarting from the assumption that citizenship is valuable private property that would be even more valuable if it were transferable, the paper explores the idea of commodification of citizenship. The paper provides arguments in favor of commodification of citizenship and recommendations to how the market for citizenship should be designed. A market for citizenships could result in an improved matc
This study determines the technical and economic feasibility of separating dye from a process filtrate in industrial textile recycling using electrocoagulation or sequences of membrane filtration with microfiltration, ultrafiltration, nanofiltration and reverse osmosis. The lower requirements for treating this stream, compared to previously researched dyehouse effluents, left treatments not good eCost efficient membrane filtration can make textile recycling more sustainable by separating the dyes from the solvents. To make the textile industry sustainable it must become circular by recycling textiles. Currently textile recycling use, discard and emit water, chemicals, water-based solvents, and dye when these could instead be used cyclically. For example, the solvents used to remove the dye
To address global food security challenges caused by population growth and climate change, accurate prediction of crop yield is essential for sustainable agriculture. Winter wheat, a key global crop, faces production instability in regions like Sweden and Morocco due to extreme weather conditions. This study employed unmanned aerial vehicle (UAV)-based multispectral imagery and digital surface mod
