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The aim of this study was to determine effects on methane potential and overall sludge quality from two different sludge pre-treatment technologies (ozonation high/low dosage and thermal treatment 55/70 degrees C). In general both treatments produced increased methane potential. Thermal treatment resulted in higher chemical oxygen demand (COD)-solubilisation, while the highest volatile fatty acids

The main aim of the thesis is, first, to present a theoretical and methodological perspective for the study of postmodern theory in historiography; second, to discuss and evaluate earlier research on the subject; and third, to show that historians must be more self-reflexive about their explicit as well as implicit theoretical and philosphical premises. My theoretical and methodological inspiratio

A personal transporter is under development at LTH, Industrial Electrical Engineering and Automation, IEA. A wireless link is desired to develop control remotely for the transporter. The development of the control becomes easier without wires and if the transporter can move freely within the range of the link. A link is built, using Bluetooth devices and a microprocessor from Microchip. This link

In a modern society there is a constant increase in electrical use but at the same time the environmental awareness among consumers is rising. This master theses aims at investigating the possibilities in cost and energy efficient lighting control techniques. This master thesis is written for the Measurement Technology and Industrial Electrical Engineering division, IEA, within the Faculty of Engi

Management accounting and control systems following mergers and acquisitions are illustrated and examined in a study comprising two large acquisitions made by Swedish MNEs. A new theoretical framework is developed and applied to analyze the findings, which in turn are also contrasted against the findings from the few previous studies on the subject matter.

One reason why persons today wants to make their energy consumption more effective is that the energy price has increased and will probably increase even more. Another reason is that they worry about the carbon dioxide emission effects on the environment. These two motives together with the “Programme for improving energy efficiency”, PFE, initiated by the Swedish Energy Agency gave a platform for

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Fresh water from Lake Svartsjon, Sweden, was collected and four fractions were prepared: (1) adsorption on DEAE, (2) flocculation with Ca2+, (3) co-precipitation with Fe hydrous oxide and (4) co-precipitation with Mn hydrous oxide. The plutonium level in the lake is 65 fg/l (222 mu Bq/l), measured by ICP-QMS and ICP-SFMS. Pronounced accumulation in fractions (1) (34%) and (2) (66%), combined with

In this chapter I will discuss the effects of agency loss, cultural trauma and healing, by focusing on the impact the boarding schools, the so called residential school, had and still has on contemporary Cana-dian Mi’kmaq Native identity, drawing on interviews from one of my fieldworks conducted on the island Cape Breton, Nova Scotia.

Correct diagnosis and staging are required for optimal treatment choice in lung cancer patients. This retrospective, patient medical records study investigated the clinical practice of lung cancer biopsy procedures and testing in Sweden.