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Spatial inference for non-lattice data using Markov Random fields

This thesis deals with how computationally effective lattice models could be used for inference of data with a continuous spatial index. The fundamental idea is to approximate a Gaussian field with a Gaussian Markov random field (GMRF) on a lattice. Using a bilinear interpolation at non-lattice locations we get a reasonable model also at non-lattice locations. We can thus exploit the computational

The Strategic Relevance of Organizational Capabilities: An Assessment and Proposal for Integration

In strategic management, the concept of organizational capabilities appears in two sets of related literatures: the resource-based view and the dynamic capabilities approach. The resource-based view treats organizational capabilities as unitary factors that explain cross-sectional industry performance differentials. The dynamic capabilities approach, on the other hand, treats organizational capabi

Analysis of Lateral Transshipments in Inventory Systems

This thesis is based on two scientific papers. In these papers we study how one can approximate the inventory level of probabilities and the transshipment rates for inventory systems that apply lateral transshipment policies. Both papers consider a single-echelon inventory system consisting of a number of parallel installations, which all face Poisson demand. Normally, the installations replenish

Source reconstruction by far-field data for imaging of defects in frequency selective radomes

In this paper, an inverse source reconstruction method with great potential in radome diagnostics is presented. Defects, e.g. seams in large radomes, and lattice dislocations in frequency selective surface (FSS) radomes, are inevitable, and their electrical effects demand analysis. Here, defects in a frequency selective radome are analyzed with a method based on an integral formulation. Several fa