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Optical diagnostics are remote non-intrusive sensing techniques. The thesis work concerns the use of OH and soot optical diagnostics for combustion research.Internal combustion (IC) engines are widely used for the generation of power and for transportation purposes. Soot emission, involving carbon particles that emanate from the combustion process, is one of major sources of pollutants in engine e

Popular Abstract in Swedish Östersjön är idag ett av världens största innanhav med endast marginellt utbyte av vatten med Kattegatt via Öresund samt Lilla och Stora Bält. Saltrika inflöden från Kattegatt orsakar två salthaltsgradienter, en horisontell med mer saltrikt vatten i sydväst och mer färskt i Bottenhavet, samt en vertikal saltgradient (haloklin) med mer saltrikt bottenvatten och mer färskThe Baltic Sea is one of the world’s largest brackish water environments and is today suffering from, for example, eutrophication, spreading hypoxia, accumulations of contaminants and invasive organisms. These problems exist due to a combination of natural features that makes the Baltic Sea a sensitive ecosystem (such as long water residence time, limited water exchange, large catchment area), and

This thesis presents a number of results and algorithms for the numerical solution of problems in geometric computer vision. In geometric computer vision one tries to extract geometric information about the world and the observer from a sequence of images. Estimation of scene structure and camera motion using only image data has been one of the central themes of research in photogrammetry, geodesy

The L3, or sponge, phase is a thermodynamically stable isotropic liquid consisting of a surfactant membrane in aqueous solution. A solvent induced L3 phase is shown in systems of solvent, monoolein and water. Dimethyl sulfoxide, propylene glycol, polyethylene glycol, ethanol, N-methyl-alfa-pyrrolidone and 2-methyl-2,4-pentanediol are solvents of varying hydrophilicity but are all miscible with bot

This dissertation discusses employer run or supported occupational pension schemes. Special attention is given to the question of employers' pension promises, their portability and security, during the first half of the 20:th century in Sweden. How did occupational pensions in private industry change in quantitative terms? What did the terminology of a pension promise, its portability and security

In January 1990 an expert group was set up by DP2 of TC2, CEC to define the research and development work needed to be undertaken within the community to achieve a robust solution with respect to reaction-to-fire material classification. The expert group delivered in December 1990 its proposal for a 5-year research and development program. But a system of harmonised European fire test methods and

T cells are key cellular components of the adaptive immune system that play a critical role in our defense against pathogens and cancer but also contribute to pathology in the setting of chronic inflammation and autoimmunity. The thymus constitutes the body's major T cell production site, where bone marrow-derived progenitors migrate in a co-ordinated fashion through anatomically distinct cortical

Popular Abstract in Swedish Människan har alltid exponerats för joniserande strålning från radioaktiva ämnen i naturen och i sin egen kropp, samt från kosmisk strålning. Summan av exponeringen från dessa strålkällor blir ungefär 1 mSv per år. Till detta kommer exponering av lungor och luftvägar från radon och radondöttrar, särskilt i inomhusluft. Som jämförelse kan nämnas att en tandröntgen ger enA quarter of a century has elapsed since the catastrophe at the nuclear power plant in Chernobyl. The radioactive fallout affected all the European countries and most severely the three countries of Belarus, Russia and Ukraine. In the aftermath of this devastating event, the scientific knowledge on the various radiological impacts of such a large scale accident and means to remediate these impacts

A systematic review of radiation therapy trials in several tumour types was performed by The Swedish Council of Technology Assessment in Health Care (SBU). The procedures for evaluation of the scientific literature are described separately (Acta Oncol 2003; 42: 357-365). This synthesis of the literature on radiation therapy for soft tissue sarcomas (STS) is based on data from five randomized trial

Popular Abstract in Swedish Denna undersökning inventerar beståndet av beteckningar för EGENDOM I ALLMÄNHET och för MOBIL och IMMOBIL EGENDOM i de regionala medeltida nordiska lagarna (dvs. de danska och svenska landskapslagarna, de norska lagtingslagarna samt den isländska Grágás). Materialet analyseras språkgeografiskt med avsikten att skapa en relativ termkronologi. En grovanalys visar attféThis study investigates the stock of words for PROPERTY IN GENERAL with the subcategories MOVABLE and IMMOVABLE PROPERTY in the regional medieval Scandinavian laws and makes a linguistic-geographical analysis of these words with the aim of establishing a relative term chronology. A crude analysis shows that fé/fæ for PROPERTY IN GENERAL and land for IMMOVABLE PROPERTY were the oldest