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The wood pulp industry has been around for a long time, but new higher quality pulp require more advanced solutions to old processes. One of these processes is the peroxide (PO) bleaching process, which is the last of a whole chain of bleaching processes at the Mörrum pulp processing plant. The aim of this thesis was to develop and study a model for the peroxide pulp bleaching process, and thereaf
In order to understand exciton migration and fluorescence intensity fluctuation mechanisms in conjugated polymer single molecules, we studied fluorescence decay dynamics at "on" and "off" fluorescence intensity levels with 20 ps time resolution using MEH-PPV [poly(2-methoxy-5-(2'-ethylhexyloxy)-1,4-phenylenevinylene] dispersed in PMMA. Two types of intensity fluctuations were distinguished for sin
I ett allt mer individbaserat samhälle, med ett skifte från normer när det gäller levnadssätt till allas unika livsval, ser vi ett ökat behov av boende för olika typer av konstellationer. Kärnfamiljen är inte lika självklar längre, ensamhushållen är fler och separationer är vanligt. Människor kan välja att bli förälder på egen hand och tvåsamhet som en självklarhet ifrågasätts helt och hållet. Vi In our individualized society, with a shift from strict norms on how we live our lives to everyone’s own unique lifestyle, we see a growing need for diversified housing for different types of constellations. The nuclear family is not a certainty anymore, the number of single residencies have increased and separations are common. People can choose to become a parent on their own and twosome relatio
The aim of the study is to research preschool teacher’s understanding and way of talking about ethnicity and diversity in two different municipalities. The design of the methods performed for the study was qualitative and seven interviews have been done to gather empirics. The interview guide was semi-structured in order to be able to keep a flexible approach through the interviews. The result sho
The incineration furnace at National Veterinary Institute (SVA) in Uppsala, Sweden, runs approximately 2,150 hours a year and generates a large amount of waste heat. Some of this heat is partially recovered, and is used for heating one of the main buildings during the furnace operation. However, around 2,000 MWh is wasted annually due to unavailability of any storage system. This wasted heat is ap
Lately mergers and acquisitions made larger power distribution companies. The economic benefits of those are carefully calculated. But what’s much more complicated is to calculate all consequence of mergers. Very few things in business are certain. The precision of science doesn’t apply to business. Universal “laws of nature” do not govern business; no formula “replicates” good management. Decisio
During the last few decades there have been speculations as to whether heavy drug abuse among youths has increased. The aim of this thesis was to examine the heavy drug addiction amongst clients between the ages of 19 and 27 who have come in contact with the adults unit at Södermalms stadsdelsförvaltning (Stockholm, Sweden) in the time period between 2002-2010. What has the development for these y
The effects of climate change are getting evermore severe, especially on the African continent. Actions towards the UN Agenda 2030 for sustainable development are becoming crucial, and one part of this is the energy transition. Africa has some of the world’s best conditions for solar PV and hence it is a viable option for electricity production in Kenya. The aim of this thesis is to understand th
Excavators have traditionally been diesel driven with hydraulic actuators, but with the ongoing electrification of vehicles, smaller electric excavators are getting more common. Larger electrical excavators are still in a prototyping or early production stage but can be expected to grow. The electrification of construction equipment creates new possibilities to replace previous hydraulic- with ele
Lactic acid fermentation has been a widely used process for many years, offering nutritional and sensory benefits to plant proteins. In this study, the objective was to produce a fermented pea powder with enhanced sensory properties by combining previous research from FrieslandCampina. A screening was performed on a set of cultures obtained from a contract research organization (CRO), starter Cult
Hydrogen is essen/al for sustaining microbial communi/es in a wide range of modern ecosystems and was likely pivotal for the emergence of early life on our planet. Across the prokaryotes and eukaryotes, hydrogen is produced or consumed by ‘hydrogenase’ enzymes. Hydrogenases in prokaryotes vary in their subunit composi/on, ranging from single-subunit soluble proteins to large, mul/-subunit complexe
This thesis focuses on developing energy barrier models that increase photovoltaic hot carrier extraction efficiency. Hot carriers are electrons containing an excess of kinetic energy and the energy required to leave the valence band. In mitigating losses and increasing the efficiency of solar cells, hot carriers offer the opportunity to extract this kinetic energy. The study of extracting the kin
Mitt syfte med uppsatsen är att undersöka hur väl forensikers egen uppfattning om vad de bör uttala sig om och vad de inte bör uttala sig om stämmer överens med en idealbild av expertrollen. Mot bakgrund av syftet ställdes elva påståenden till 50 forensiska experter vid Nationellt forensiskt centrum (NFC) i form av en enkätundersökning. De sätt på vilka forensiker kan avvika från idealet som testaMy purpose with this thesis is to examine how well forensic experts` understanding of what they should and should not express opinions on is in accordance with an idealized view of the expert role. Given my purpose with the thesis, eleven statements were presented in a survey to 50 forensic experts working at the Swedish National Forensic Centre (NFC). Two deviations from the ideal view of an expe
This thesis considers an investigation into the possibilities of creating a reasonably accurate multiscale material model for paperboard, with geometry based on X-ray scans of small paperboard samples. The modeling takes place in the software Multiscale Designer by Altair Engineering Inc. A representative volume element (RVE) is used to capture the X-ray geometry and represent macroscopic mechanic
Climate change is a long-term challenge that requires urgent actions. An increased amount of greenhouse gases in the atmosphere, causing changes in the climate system such as melting glaciers and extreme weather conditions, are correlated to economic growth. To mitigate climate change, there is a need to evolve efficient strategies to reduce greenhouse gas emissions from companies within all branc
Over the last years, the conventional agricultural system has increasingly been pointed out as one of the most problematic sector for the environment and the global public health. At the same time, the organic farming sector has more and more been presented as a sustainable answer to that problem. However, its implementation comes with numerous challenges, such as the procuration of a third-party
Severe protein C deficiency is a rare, early onset, venous thrombotic condition that is inherited as an autosomal recessive trait. The protein C (PROC) genes of nine unrelated individuals with severe protein C deficiency were sequenced yielding a total of 13 different lesions. Eight of these were novel, including a gross gene deletion, three missense mutations, two micro-deletions, a splicing muta
The use of total lipid phosphate as a measure of biomass was evaluated in soils with different organic matter content. Lipids were extracted with a one-phase mixture of chloroform, methanol, and a buffer, and digested with either persulfate or perchloric acid to liberate lipid-bound phosphate. This procedure was evaluated by varying the extraction buffer, the extraction and digestion times, the am
