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We study and solve the previously unstudied problem of finding both sender and receiver positions from time of arrival (TOA) measurements when there is a difference in dimensionality between the affine subspaces spanned by receivers and senders. Anchor-free TOA network calibration has uses both in sound, radio and radio strength applications. Using linear techniques and requiring only a minimal nu
In Western classical music traditions, conventional ways of considering melody have been established. The tones of a melody phrase might be experienced as building up a continuous line moving between dynamical culmination points and relaxation points. In this study, a special visual tool called the Melody phrasing curve (MPhC) has been tested. The MPhC is designed according to some established con
Popular Abstract in Swedish Reumatoid artrit/ledgångsreumatism (RA) är en kronisk inflammatorisk sjukdom som i första hand drabbar lederna. Man uppskattar sjukdomens förekomst i den vuxna befolkningen till cirka en halv procent och den är 2-4 gånger vanligare hos kvinnor. Vi vet inte vad som orsakar RA, men såväl ärftliga som omgivningsfaktorer har betydelse. RA har ett varierande förlopp. Dels kaRheumatoid arthritis (RA) is characterized by persistent inflammation, progressive joint damage and disability. This thesis describes the outcome after 10 years in a cohort of 183 RA patients (116 women, 67 men) recruited 1985-89. The mean age was 51 years and symptom duration 11 months at inclusion. Standardized clinical, biochemical and radiographic assessments were performed annually. Health st
The ability to understand packaging and how it contributes to the establishment of efficient logistics and the creation of individualised values for consumers is becoming increasingly important. This licentiate thesis stresses the importance of applying a holistic view of packaging in order to be able to understand how to adapt the distribution channel to meet consumer demands. The study focuses o
The main objectives with this investigation are firstly to compare important parameters of a capacitive micromachined ultrasonic transducer (cMUT) for air applications with a corresponding piezoelectric ultrasonic transducer. Secondly, to characterise the cMUT's radiation field using light diffraction tomography. The cMUTs consist of a silicon backplate with small pyramid-shaped cavities and a met
Human antibodies generated in vitro may be highly valuable for diagnostic and therapeutic purposes. For a long time most human antibodies produced in vitro have been of the IgM isotype with rather low affinities. In this thesis a method for production of IgG switched antigen-specific human antibodies is presented. This is a two step protocol, in which the first step is a selection procedure of don
Popular Abstract in Swedish Förebyggande av hjärtkärlsjukdom har varit en utmaning för medicinsk forskning under flera decennier. Viktiga frågeställningar om såväl screeningmetodik som risk-faktor intervention söker fortfarande sitt svar och har i sig betydelse för både samhällsmedicin och klinisk verksamhet. Målsättningen för denna studie var att undersöka möjligheten för läkare och sjuksköterskoCardiovascular disease prevention has been a challenge for research for decades. The studies of this thesis were designed to investigate the role of health professionals in everyday clinical work based upon the concept of comprehensive primary care consultation. Routine check-up of blood pressure was the basis for the inclusion in an opportunistic screening for hyperchol-esterolaemia. Additionally
We deal with a natural integer-linear programming formulation of the routing and spectrum allocation (RSA) problem in elastic optical networks. We focus on strengthening the formulation with valid inequalities (cuts). For this purpose we apply clique inequalities that proved to be useful in other applications of this kind. We develop and combine a clique cut generation procedure with a column gene
A method for the inversion of wavefield spectra in non-destructive testing of pavements is outlined. Data acquisition and processing is based on the Multichannel Analysis of Surface Waves (MASW) method. The inversion of a vertical-shear wave velocity profile is conducted on the full wave field spectrum using the Fast Simulated Annealing (FSA) algorithm. This procedure avoids dealing with discrete
Popular Abstract in Swedish Bortglömda, stulna eller på andra sätt borttappade radioaktiva strålkällor som kan anses vara farliga för allmänheten kallas herrelösa strålkällor. Denna avhandling handlar om metoder för att hitta herrelösa strålkällor som emitterar s.k. gammastrålning, bestående av ljuspartiklar med mycket hög energi. Gammastrålning har god förmåga att penetrera materia och kan därförHazardous radioactive sources out of regulatory control are referred to as orphan sources. Focussing on gamma-emitting orphan sources, this thesis describes methods that can be used in mobile gamma-ray spectrometry to perform real-time discrimination between an actual source signal and the signal due to the natural radiation background. Two categories of methods for orphan source detection are pre
