Filtyp
Estimating the spatial extent of the impacts of renewable energy infrastructure on tourism is crucial for the identification of potential locations of resource use conflict. Such a task, however, is complicated and requires inclusion of social perceptions on the spatial extent of the impacts. This study investigates perceptions of the tourism industry in Iceland regarding the impact area of existi
This thesis investigated the potential of using reactive power compensation to solve overvoltage issues caused by high amounts of distributed generation, such as rooftop photovoltaic (PV) systems, in the low voltage grid. High voltages are caused by increasing distributed generation as the Swedish power grid shifts from centralised to decentralised power production. The aim was to manage overvol
Gröna tak kan minska problem med s.k. urban heat islands och kan användas för dagvattenhantering. Andra miljöfördelar som en förbättring av luftkvalitet, biodiversitet och bullerminskning finns också. Detta projekt fokuserar på lokala (kommunala) medel för att skapa en bättre miljö med extensiva gröna tak, vilka är nästan underhållsfria. Ett delområde i Lund som inkluderar Universitetet och UniverGreen roofs have the potential to mitigate problems with an urban heat island and to act as an element in stormwater management. Other environmental benefits exist as well, such as improvement of air quality, biological diversity and noise reduction. This project focuses on local community efforts to create a better environment through the use of extensive green roofs, which require almost no main
Popular Abstract in Swedish Min forskning handlar om hur nedbrytningen av fett i fettceller regleras genom att fosfat tas av och sätts fast på olika proteiner inuti fettcellerna. För att man skall förstå hur fettnedbrytning hänger ihop med att fosfat reagerar med proteiner är det bra att veta något om hur fettcellernas ämnesomsättning regleras. Energilagring och fettomsättning Människokroppen la
Popular Abstract in Swedish Vi använder allt mer energi och efterfrågan kommer bara öka, fram till 2050 spås en fördubbling av världens efterfrågan av energi. Drygt 85 procent av den energi som produceras i dag kommer från fossila bränslen som bidrar till växthuseffekten. En ny rapport från FN:s klimatpanel, IPCC, visar att koldioxid står för runt 76 procent av det totala utsläppet av växthusgasAccelerating actions to mitigate CO2 emissions was one of the important messages at the UN Climate Summit 2014. About 85 % of the world’s energy is provided through the burning of fossil fuels, which is the main source of CO2 emissions. Increasing the share of renewable energy, and making energy efficiency improvements and savings were actions that were agreed upon to meet CO2 emission reductions.
Most of the experiments related to quantum information applications, involving rare-earth doped inorganic crystals, are performed on yttrium orthosilicate single crystals. The work presented here is motivated by the search of new compounds which can be used in the field of quantum computing and/or quantum storage. Relaxation times and hyperfine structure of the H-3(4)(0)-> D-1(2)(0) transition in
Hemp milk has the potential to be a climate-friendly substitute for cow milk. In contrast to other milk substitutes, the climate impact of hemp milk has not yet been studied. This study aims to examine the climate impact and water consumption of hemp milk throughout the whole process from the agricultural stage to the finished product via a life cycle assessment. The results show that the climate
This thesis investigates how public archives in Sweden engage with ecological sustainability, with the purpose to provide an opportunity for reflection and discussion on the topic. My point in question is the disambiguation of the Swedish word “hållbarhet”. This is used both in reference to sustainability, meaning actions for improving environmental conditions, and to durability, which in the arch
Hög energieffektivitet och god fordonsdynamik är två av de viktigaste fokusområdena för drivsystem i personbilar. En central komponent i BorgWarner:s produkter för momentöverföring är en lamellkoppling som regleras med hjälp av trycksatt olja från en hydraulisk axialkolvpump. Ett alternativ för att reducera energiförbrukningen och samtidigt förbättra pumpens prestanda är att variera pumpens deplacEnergy efficiency and good vehicle dynamics are two of the main focus areas for passenger car drive systems. A central component in BorgWarner’s torque transfer products is a multi-plate clutch which is actuated by pressurized oil from a hydraulic axial-piston pump. One way to reduce the energy consumption and improve the performance of the pump is to let the displacement of the pump vary dependin
Qinghai-Tibet Plateau grasslands are unique geographical regions and store substantial soil organic matter (SOM) in the soil surface, which make them very sensitive to global climate change. Here, we focused on three main grassland types (alpine meadow, steppe, and desert) and conducted a soil incubation experiment at five different temperatures (5, 10, 15, 20, and 25°C) to investigate SOM decompo
New durable and hydroxide ion conducting anion-exchange membranes (AEMs) are currently required in order to develop alkaline fuel cells into efficient and clean energy conversion devices. In the present work we have attached quaternary piperidinium (QPi) groups to poly(2,6-dimethyl-1,4-phenylene oxide)s (PPOs) via flexible alkyl spacer chains with the aim to prepare AEMs. The bromine atoms of brom
Solid oxide fuel cells (SOFCs) produce electricity with high electrical efficiency and fuel flexibility without pollution, for example, CO2, NOx, SOx, and particles. Still, numerous issues hindered the large-scale commercialization of fuel cell at a large scale, such as fuel storage, mechanical failure, catalytic degradation, electrode poisoning from fuel and air, for example, lifetime in relation
HIPPIE is a soft X-ray beamline on the 3 GeV electron storage ring of the MAX IV Laboratory, equipped with a novel ambient-pressure X-ray photoelectron spectroscopy (APXPS) instrument. The endstation is dedicated to performing in situ and operando X-ray photoelectron spectroscopy experiments in the presence of a controlled gaseous atmosphere at pressures up to 30 mbar [1 mbar = 100 Pa] as well as
Dion–Jacobson (DJ)-type 2D halide perovskites present superior environmental stability and a narrower bandgap, yet a contradiction between charge transport and stability remains to be resolved. Herein, it is shown that both symmetry and substitution of the organic spacer in DJ perovskites synergistically direct the narrow interlayer spacing, staggered spacer alignment, and regular phase arrangemen
This paper describes the adaptation of the laser-induced fluorescence measurement technique for the investigation of the primary breakup of modern diesel and gasoline direct injection sprays. To investigate the primary breakup, a microscopic technique is required, and with the help of special tracer dyes, a high fluorescence signal can be achieved in the visible range of the electromagnetic spectr
Understanding the hydromechanical behavior of porous media such as sandstones is critical to various geoengineering applications such as geologic carbon storage, geothermal projects, oil and gas production and environmental remediation in aquifers. In these contexts, accurate quantification of the constitutive hydromechanical behavior of sandstones is necessary to predict reservoir responses. In t
