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The crossing rate of a stationary random process is a valuble tool when studying crest hight distributions and maxima of sea level elevation. This thesis considers two approximation techinques for cases when the crossing rate cannot be exactly computed. Both techniques use an asymptotic expansion, and the first and second order terms in these expansions are given explicitly. Paper A describes how

Two Quantitative Risk Analysis (QRA) methods are presented which can be used to quantify the risk to occupants in, for example, a building in which a fire has broken out. The extended QRA considers the inherent uncertainty in the variables explicitly. The standard QRA does not consider the uncertainties in the variables and must be complemented by a sensitivity analysis or an uncertainty analysis.

This thesis explores the various influence processes that take place in connection with the dawn of a new theme - the environment - in today's society. Society has declared that schools, a place designed for the intentional influence of children and youths, shall utilise the new environmental theme in its practice. It focuses on the initiation process of the environmental theme in schools from the

Compulsory treatment and care is regulated by the Care of Alcoholics and Drug abusers Act (Lag (1988:870) om vård av missbrukare i vissa fall, LVM). The regulation's main purpose is to motivate persons with addictive problems to voluntarily participate in the treatment of their problems. The compulsory care shall continue for a maximum period of six months in special treatment centres (the so-call

This thesis is about the importance of context to learning processes in computer-supported flexible education. The purpose is to develop knowledge about how students in an upper secondary class experience and act in a computer-supported flexible educational environment and how the experienced context affects the students' learning processes. An ethnographic application involving theories of learni

A low volume and long optical path spectroelectrochemical cell was constructed and tested in a number of applications such as detection of direct electron transfer (DET) between redox enzymes and gold electrodes, determination of the formal potentials of redox centres in proteins and enzymes, as well as mechanistic studies of heterogeneous and intermolecular electron transfer of copper oxidases an

Abstract in Romanian În lucrarea de faţă realizăm o prezentare a unicului lectorat de limba română din Regatul Suediei sub următoarele aspecte: scurtă istorie a prezenţei limbii române în cadrul Universităţii din Lund; organizarea și funcționarea lectoratului, activitatea didactică; realizarea de materiale didactice și auxiliare; dezvoltarea lectoratului pe parcursul anului universitar; activități

A semi-automatic task oriented system structure has been developed and tested on an arc welding application. In normal industrial robot programming, the path is created and the process is based upon the decided path. Here a process-oriented method is proposed instead. It is natural to focus on the process, since the path is in reality a result of process needs. Another benefit of choosing process

This thesis contributes to mathematics, finance and computer simulations. In terms of mathematics this thesis concerns applied probability and Lévy processes and from the financial point of view the thesis concerns derivative pricing. Within these two areas several simulation techniques are investigated. The thesis is organized as follows. The first two chapters are to be considered as reviews on

This thesis concentrates on bioenergy (or biomass utilised for heat, electricity and fuels for transport) as a renewable energy with significant potentials and options. Biomass can be considered as 'stored' solar energy because the process of photosynthesis 'captures' energy from the sun in growing plants. Bioenergy systems under the 'right' conditions can greatly contribute to climate mitigation,

The focus of this work is on the experimental techniques and data analysis in atomic spectroscopy. Improved methods for the analysis of spectra and the determination of level energies are presented. Most of these are based on a rigorous statistical treatment of the spectroscopic data. Strong lines in the spectrum of singly-ionized neon between 2000 and 5000Å are suggested as tertiary wavelength st

The theme of this dissertation is how changing claims as to what is proper and true social work have been formulated and staged in the twentieth century. From the perspective of cultural analysis I seek to discuss how social work has been formed and changed over a century. I wish to demonstrate how descriptions and narratives, actions and gazes, practice and rhetoric have constituted a changing pr

Possible effects from colour interferences in strong interactions are discussed and investigated, and possible experimental signals in e+e- --> hadrons and e+e- --> W+W- --> hadrons are suggested. The observability of the signals depend on the relative probabilities of the occurrence of interferences, and can provide a measurement of the probabilities. This is important since these probabilities c

This work deals with interpretation of experimental surface spectroscopic data with the aid of first-principle calculations. Surface infrared reflection-absorption spectra as well as spectra from the electron spectroscopic methods photoemission and X-ray absorption are considered. In all cases the surface is modeled by a metal cluster with the same (frozen) geometry as part of the surface. The wo

This thesis gives an overview about the current status of nanoimprint lithography, a relatively new nanofabrication tool. The technology is capable for parallel mass production of nm-structured features having a resolution below 10 nm and is usable with high throughput on full wafer scale. The thesis is mainly divided into two parts dealing with nanoimprint lithography and electrochemistry. The w