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Impact of impedance matching on direction-of-arrival estimation of compact antenna arrays

Conventionally, the spacing between adjacent elements in an antenna array are set at half-a-wavelength in order to obtain maximum spatial resolution while avoiding spurious sidelobes. However, for antenna arrays that are implemented in a compact manner, the spacing between the adjacent elements can be significantly less than half-a-wavelength. The small spacing between the antennas results in stro

Modelling of Laminar Mixing in Static Mixers

The chemical process industry uses the mixing unit operation for several applications in which a defined degree of homogeneity is desired. The mixing process can be performed under laminar, transitional or turbulent flow conditions and there are several types of equipment available for this purpose; the static mixer being one of them. It is important to optimize the system being used regardless of

Societal services and traumatic spinal cord injury: A multifaced interaction

The licentiate thesis is based on three papers. The aim of the research is to elucidate and analyze how societal services in practice are made available (or not available) and are utilized (or not utilized) by a group of individuals with traumatic spinal cord injuries (SCI). The first article is an inventory of Swedish societal support and services that one can apply for after a traumatic SCI. Tw

Pixel Merge Unit

Multi-sample anti-aliasing is a popular technique for reducing geometric aliasing (jagged edges) and is supported in all modern graphics processors. With multi-sampling anti-aliasing, visibility and depth are sampled more than once per pixel, while shading is done only once per pixel per primitive. Although this significantly reduces the appearance of jagged edges around object boundaries, the ima