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The main objective in the research described in this thesis was to design and test the use of lean premixed combustion using combustion gas recirculation for gas fuelled Stirling engine combustors. A system using a flame-arrester type of flame-holder to stabilize the flame and an ejector system for the recirculation of combustion gas was designed and tested in the laboratory. The impact of changes
This dissertation in anthropology of religion focuses on images of Tibet, among Westerners as well as among Tibetans. Based on approximately one year of fieldwork in the former British Hill station, it also deals with the politics of the Central Tibetan Administration (CTA) and some of its political and social implications for the exiled Tibetan youth living in Dharamsala, India. The Western perc
The aim of the study is to improve on the understanding of the implications for adolescents of being placed in foster care. The basis for the study is that the adolescents´ previous relationship with their parents has significance for the manner in which the adolescents will handle the separation from the parents and how they will relate to foster parents. 27 adolescents aged 13-16 years were exam
Investigations of astrophysical spectra require accurate atomic data, such as wavelengths and transition probabilities. This thesis provides high-precision atomic data for astrophysical and cosmological applications. The measurements have been carried out using Fourier transform spectrometry on light produced in a hollow cathode light source. The variability of fundamental constants is investigat
This book presents a study on general and specific problems concerning the role, functions and structure of criminal justice systems. After a presentation of some ideological and methodological issues, the justifications for different principles of criminal jurisdiction are discussed, both in the perspective of public international law and municipal law. The constituent elements of criminal offenc
Potts mean field artificial neural network techniques are developed and applied to airline crew scheduling problems and routing problems. A propagator formalism in terms of Potts neurons is developed to handle global topological issues. An integrated method for identifying and classifying ECG complexes is presented. Unsupervised self-organizing artificial neural networks are employed to cluster t
This thesis is about parameter estimation and control of time-varying stochastic systems. It can be divided into two parts. The first part deals with an estimation algorithm commonly used when estimating parameters in time-varying stochastic systems, the Recursive Least Squares (RLS) algorithm with forgetting factor. The exact statistical properties for the RLS-estimator with forgetting factor ar
The need, for health educational reasons, of obtaining a more adequate understanding of how people think and act in connection with questions of dental health and professional dental care has been emphasized. The present study examines the attitudes and conceptions of adult individuals regarding their own dental health, as well as measures they take to further it. The aim is to elucidate factors t
Whether the Ganges river in Varanasi (India) is pristinely pure or heavily polluted depends on by whom it qualities are defined, the Brahmin religious specialists in the city or the science oriented environmentalists. While the controversy continues, some Hindu religious leaders are searching for ways to adjust their respective traditions to the environmental paradigms, an initiative that reflects
The aim of this study was to examine how an organisation’s approach to brands can, in the building up of a brand competence, prevent trademark degeneration and develop and protect brands as strategic resources. A line of argument is put forward for adopting a new corporate approach (mind-set) to brands. The starting-point is the concept of trademark degeneration (genericness), which is both the ke
This thesis treats the problem of transient electromagnetic pulse propagation in temporally dispersive media. The analysis is performed using time-domain techniques. In particular, the dispersive wave splitting which decouples the Maxwell equations both in vacuum and inside the medium is utilized. Complex time-dependent electromagnetic fields are introduced. These fields simplify the Maxwell equat
This dissertation aims to explore and describe ageing and old age from an ethnological perspective and create a deeper understanding of the complex nature of ageing by focusing on how cultural concepts and the ageing body together shape the experiences of old age. The theoretical basis is a phenomenological perspective, highlighting the relation between the body and the materiality of everyday lif
The main part of the thesis is concerned with charge photogeneration in conjugated polymers. MeLPPP and POMeOPT films were investigated by transient absorption spectroscopy using different excitation photon energies and light intensities with and without an external electric field. We conclude that electric field-assisted charge pair photogeneration occurs from vibrationally relaxed singlet excito
The aim of the thesis is to contribute to knowledge about experience and perceptions of reading that students at a school of education have, from early reading experiences in childhood, to the encounter with reading in context of their teacher training. The following overarching questions were asked: What aspects of narratives appear to be significant in the students’ reading trajectories? Which a
It is difficult for states to cooperate on issues related to international peace and security. Yet, ever since 1970, the EU member states have succeeded to gradually intensify their foreign policy cooperation and increasingly act in unison towards the rest of the world. This PhD thesis seeks an explanation to this trend. It does so by initially painting a picture of when, in time, the volume and c
The drying of a porous material occurs in two different periods: the constant rate period and the falling rate period. During the constant rate period, the drying rate is determined by the external conditions regarding heat and mass transfer, and the drying rate is not influenced by the properties of the drying material. During the falling rate period, the material properties, such as the transpor
