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The aim of the thesis work is the further development of practical engine simulation tools based on Stochastic Reactor Models, SRMs. Novel and efficient implementations were made of a variety of SRMs adapted to different engine types. The models in question are the HCCI-SRM, the TwoZone SI-SRM and the DI-SRM. The specific models developed were incorporated into two different interfaces: DARS-ESSA,
Popular Abstract in Swedish Transplantation av dopaminceller från mänskliga foster kan förbättra funktionen hos patienter med Parkinsons sjukdom (Lindvall 1997, Björklund 2000a). Man har kunnat visa att transplantaten har återställt dopaminproduktionen i striatum till normala nivåer i flera fall, och till 70-80% av normalt i majoriteten av de patienter som transplanterats i Lund. Transplantaten haTransplantation of embryonic human neural tissue can restore function in patients with Parkinson’s disease, but there is a severe shortage of donor tissue which limits the applicability of the technique. Embryonic neural tissue from other species, xenogeneic tissue, would provide a readily accessible donor tissue with the potential to help patients if the immunological reactions in the host could
Popular Abstract in Swedish Infektiös hepatit eller gulsot kan orsakas av flera olika sorters virus. De har alla det gemensamt att de orsakar en inflammation av levern. Namnet gulsot kommer av att när leverns funktion nedsätts så ansamlas ett färgämne i kroppen och ger ögonvitorna och huden en synlig gulgrön färg. Efter hand som de olika gulsotsvirusen har upptäckts har de namngivits efter alfabetHepatitis B virus is a non-cytopathic virus with a small, circular, partially double-stranded DNA of 3.2 kb. It causes acute and chronic inflammatory liver disease and hepatocellular carcinoma (HCC). Retesting of stored sera from an outbreak of acute hepatitis in 1969-72 allowed identification of 126 cases of acute hepatitis B. No chronic carriers expressing hepatitis B surface antigen (HBsAg) cou
The use of enzymes in industrial applications has been recognised for providing clean processes with minimal impact on the environment. This thesis presents studies on engineering of enzymes and enzyme-based processes in the light of green chemistry and environmental sustainability, and focuses on three hydrolases: esterase, lipase and phytase. The use of esterase has been investigated to provide
The current plastic system is unsustainable and needs to change. Plastics are mainly produced from fossil feedstock, contributing to greenhouse gas emissions, and low rate of post-consumer recycling results in pollution on land and in oceans with high ecological impact, and huge loss of valuable material. There is an urgent need to find solutions for shifting the raw material base to renewable res
Quality requirements are critical for successful software engineering, with maintainability being a key internal quality. Despite significant attention in software metrics research, maintainability has attracted surprisingly little focus in the Requirements Engineering (RE) community. This position paper proposes a synergistic approach, combining code-oriented research with RE expertise, to create
Sweden was the first country in the world to introduce rules on transparency in public activities - the principle of public access to official records was introduced as early as 1766 as part of the Freedom of the Press Act of 1766. This legislation, which was unique at the time, has since meant that Sweden has had public access to official records and transparency as the main rule for public activ
Background: Biomarkers can be of help to understand critical illness and to identify and stratify sepsis. Adrenomedullin is a vasoactive hormone, with reported prognostic and potentially therapeutic value in sepsis. The primary aim of this study was to investigate the association of circulating bioactive adrenomedullin (bio-ADM) levels at intensive care unit (ICU) admission with mortality in sepsi
Closed-loop control of cloud resources requires there to be measurements readily available from the process in order to use the feedback mechanism to form a control law. If utilizing state-feedback control, sought states might be unfeasible or impossible to measure in real applications; instead they must be estimated. However, running the estimators in real time for all measurements will require a
Modesty as a Condition for Circular Economy Transition SuccessThe Promise and Challenges of a Circular Economy TransitionThe circular economy offers much promise. Circularity is meant to be a pathway to material efficiency, energy transitions, green jobs, profitable business opportunities, reduced volatility in price of inputs, secured supplies of critical materials, increased customer experiences
This thesis devolops a general formalism for continuous feedback control in quantum systems. The main result is a quantum Fokker-Planck master equation describing the joint dynamics of a quantum system and a detector with finite bandwidth. For a fast detector, this equation can be reduced to a Markovian master equation for the system dynamics. In particular, the formalism is amenable to analytical
To gain legitimacy for climate change adaptation decisions, the distribution of responsibility for these decisions and their implementation needs to be grounded in theories of just distribution and what those affected by decisions see as just. The purpose of this project is to contribute to sustainable spatial planning and the ability of local and regional public authorities to make well-informed
Surrogate measures of safety (SMoS) are meant to function as tools to investigate traffic safety. The term surrogate indicates that these measures do not rely on crash data; instead, they focus on identifying safety critical events (or near-crashes) in traffic, which can be used as an alternative to crash records. The overall aim of this thesis is to explore which SMoS are suitable when analysing
When adopting the eight Millennium Development Goals (MDGs), in 2000, the United Nations General Assembly recognised the importance of good governance in reaching them. This study examines the hypothesis that good governance has an impact on the achievement of the MDGs. It does so by conducting regression analysis on the impact of good governance on the MDG indicators for water and sanitation. The
This master's thesis explores the improvement of loudspeaker characteristics by using digital signal processing. The main aim of the thesis is to improve the overall audio quality with regards to limited processing power and power supply. Improving the audio quality is important since the vast expansion of the usage of loudspeakers has led to demands on cost, size and design choices all leadin
Mer än 10% av Sveriges befolkning lider av någon fobi och detta projekt studerar möjligheten att lindra akrofobi (höjdskräck) med hjälp av virtual reality (VR). Arbetets syfte är därför att undersöka hur man på bästa sätt kan lindra akrofobi med hjälp av VR. Frågeställningarna som skulle besvaras var: ”Kan man med hjälp av enbart visuell och auditiv feedback skapa en trovärdig miljö för att lindraMore than 10% of Sweden's population suffers from some kind of phobia and this project is studying ways to ease acrophobia (fear of heights) with virtual reality (VR). Therefore, the purpose of the work was to investigate how to best ease acrophobia with help of VR. The research questions to be answered were: "Is it possible with just visual and auditory feedback to create a credible envi
Det brinner, lågorna står från taket och än en gång väcks skräcken till liv i den svenska befolkningen. Gryningspyromanen har precis lämnat porten på Bollhusgatan 8 i Ystad och poliserna är honom hack i häl. Denna gång kommer bevisen att räcka för en fällande dom. Är gryningspyromanen egentligen pyroman? Om inte, vad är pyromani och varför faller inte Sveriges kändaste pyroman under begreppet? HurIt is burning, the flames have spread to the roof and once again, terror plagues the people of Sweden. Gryningspyromanen has just left the entrance of Bollhusgatan 8 in Ystad and the police are right behind him. This time, the evidence will be sufficient for a conviction. Is gryningspyromanen really a pyromaniac? If not, what is pyromania and why does Sweden's most famous pyromaniac not qualif
