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Partially Premixed Combustion is a concept able to combine low smoke and NOx emissions with high combustion controllability and efficiency. It is of interest to be able to utilize PPC in a large operating region in order to meet the Euro VI emission legislation without relying on NOx aftertreatment. This paper investigates the differences in PPC characteristics for three fuels; Diesel Swedish Mk
The price of fish depends on quality attributes such as size and freshness. In turn, quality attributes are related to fishery management. This article presents a hedonic analysis where attribute prices of size and quality ratings are estimated for the Swedish Baltic cod fishery. Using information from 5,307 landing days, hedonic inverse demand functions are estimated with a random coefficient (RC
The problems of allocation of scarce resources and priority setting in health care have so far not been much studied in the context of stem cell-based therapeutic applications. If and when competitive cost-effective stem cell-based therapies are available, the problem of priority setting - to whom should stem cell-based therapies be offered and on what grounds - is discussed in this article using
Development and application of some laser techniques for the study of engine combustion are presented. The investigations mainly cover two aspects: fuel dynamics and formation of NO. Fuel dynamics is one of the most central problems in engine design since many performance parameters are affected by it; emission formation, efficiency, drivability etc. The studies include cycle-resolved measurement
The Troubles in Northern Ireland have played a prominent part in modern European history. Despite the success of the Peace Process in the 1990s and subsequent stabilisation of the conflict through the introduction of power-sharing and paramilitary decommissioning of weapons, tensions still dominate the province. This thesis uses the Copenhagen School of Security Studies to investigate processes of
We studied bacterial and fungal colonization of submerged plant litter, using a known Si-accumulator (Equisetum arvense), in experimental microcosms during one month. We specifically addressed the microbial decomposer role concerning biogenic silica (bSiO2) dissolution from the degrading litter. To vary the rates and level of microbial colonization, the litter was combined with a range of mineral
We present a Bayesian ideal observer model that estimates observer translation and rotation from optic flow and an extra-retinal eye movement signal. The model assumes a rigid environment and noise in velocity measurements, and that eye movement provides a probabilistic cue for rotation. The model can simulate human heading perception across a range of conditions, including: translation with simul
Öresundskraft AB has a number of plants that produces mainly electricity and district heat to the city of Helsingborg and its surroundings. Västhamnsverket is the main plant of the company, with an installed capacity of 126 MW electricity and 186 MW heat. Västhamnsverket is a hybrid combined heat and power plant. In order to demonstrate an efficient control-monitoring model, several ANN models ha
Jag har valt att skriva min uppsats om intagnas kontakter med omvärlden. Inledningsvis behandlar jag på vilka grunder den lokala kriminalvårdsmyndigheten (KVM) fattar beslut om dessa kontakter och hur kontrollåtgärderna fungerar. Vidare går jag igenom på vilka punkter kontrollerna kan komma att kränka de mänskliga fri- och rättigheterna. En förvaltningsmyndighet som kriminalvården har olika krav p
The aim of this report is to present conclusions about factors of great importance for the evacuation efficiency from underground spaces such as road or train tunnels. Quantified information about the duration of different stages in the evacuation process is presented as well as conclusions about means to fasten the evacuation process. Of special interest from a risk management perspective is the
The growth of building energy simulation tools has provided users with a variety of alternatives to model and simulate buildings. The algorithms used in each building energy simulation software are different and range from simple to highly complex. TEKNOsim is a simple design tool based on analytical and empirical algorithms. It is used for calculating building thermal loads and simulating indoor
This thesis work concerns methods for improved spectroscopy including stray-light suppression, dynamic range improvement and signal enhancement. These methods were applied in Raman and Thomson- scattering spectroscopy in combustion and plasma. First, the stray-light suppression method Periodic Shadowing (PS) is implemented in an experimental setup with a high-power high repetition rate laser syste
Pellets are a form of biomass used in highly efficient heating systems. Thus, development of pellet markets could improve energy efficiency, reduce emissions of greenhouse gases, create employment opportunities, increase energy security, and improve air quality. The present research explores the development of the domestic pellet market in Bulgaria. The research’s objectives are to investigate bar
Recent years have seen dramatic improvements in computer power, allowing ever more challenging problems to be approached. In light of this, it is imperative to have a quantitative model for examining chemical reactivity, both in the condensed phase and in solution, as well as to accurately quantify physical organic chemistry (particularly as experimental approaches can often be inconclusive). Simi
Non-metropolitan regions are considered more exposed to external shocks than their metropolitan counterparts, while having lower capacities to change. However, there is considerable variation among non-metropolitan regions. We argue that this variation can be captured theoretically by modelling the dynamic interplay between perceived and real opportunity spaces and agency. We empirically analyse r
In this conclusion we argue that, while we have demonstrated in this book that definitions of co-housing as well as co-housing practices in different European countries vary, there are some general lessons to be learned for anyone interested in understanding or practising co-housing in the context of advanced capitalist societies. This conclusion has three parts: First, we address the questions as
The polarization observables T,E,P,H, and G in photoproduction of η mesons off protons are measured for photon energies from threshold to W=2400 MeV (T), 2280 MeV (E), 1620 MeV (P,H), or 1820 MeV (G), covering nearly the full solid angle. The data are compared to predictions from the SAID, MAID, JüBo, and BnGa partial-wave analyses. A refit within the BnGa approach including further data yields pr
