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Numerical Study of Cellular Instability in Burner Stabilized Adiabatic Laminar Premixed Flames

The thesis deals with experiments and numerical simulations of adiabatic laminar premixed flames anchored to a heat-flux burner using different mixtures under various operating conditions. The aim is to obtain a better understanding of cellular instability in heat-flux burner anchored flames. Numerical and experimental studies were carried out to characterize the onset and the evolution of cellula

Control of the drying section in a paper machine during a web break

A new control strategy for steam pressure control in the drying cylinders during web breaks is presented. The development is performed using a new physical model implemented in Matlab-Simulink. The goal of the control strategy is to obtain the same drying properties after the web break as before the web break as fast as possible.

Socioeconomic Status and Mortality during the Mortality Transition: A Micro-level Study of Age-specific Mortality in Rural Southern Sweden 1815-1894

This paper deals with socioeconomic differences in mortality among infants, children, adults, and elderly during the period of mortality decline in the nineteenth century. It uses multilevel Cox regression controlling for shared unobserved factors at the family level, and also compares the magnitude of the observed differences between socioeconomic groups with the impact of unobserved factors at f

Institutional Continuity and Change: A century of smallholders' water rights in Meru, Tanzania

In the late 19th century Meru smallholders established the first irrigation furrows on Mount Meru, Tanzania with the intent to prolong farming seasons and improve harvests. Soon neighbouring estate holders followed suit. Since then there has been a continuous construction of furrows by both smallholders and estates in the area. Smallholders’ furrows were from the onset managed as de facto communal