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Integration of immigrants has become a crucial policy-question in Sweden and Western Europe due to the large numbers of immigrants having settled during the last three decades. Previous research has focused on integration policy outcome by studying the design of different policies and programs. This study addresses the question of how the Somali refugees, which are being better integrated in other
Machine learning and its application within finance have gained popularity the last decade. The traditional trading roles are changing rapidly and are being increasingly automated with algorithmic trading strategies, by proprietary trading firms, market makers, and other financial institutions. FX trading often involves strategies in the form of technical analysis – suggesting that the efficient m
Introduction: New technology has allowed for alternative nancing methods to arise. In equity crowdfunding anyone is allowed to invest in unlisted growth companies through an online platform, which gives companies access to previously unavailable capital and allows individuals to take part of the company's journey earlier on. Having a crowd of hundreds or thousands as an owner can bring many be
Dataflow descriptions are a natural match to application areas such as signal processing, cryptography, networking, image processing, and media coding. This paper addresses the problem of efficiently executing the basic elements of a dataflow program, its actors, written in a language such as MPEG's RVC-CAL. Using actor machines as an execution model for dataflow actors, we devise a metric for mea
This paper presents the development of a non-dimensional model of a continuous cross-flow atomic layer deposition (ALD) reactor with temporally separated precursor pulsing and a structured model-based methodology for scaling up the substrate dimensions. The model incorporates an ALD gas–surface reaction kinetic mechanism for the deposition of thin ZnO films from Zn(C2H5)2 and H2O precursors that w
Uncultivated field margins are one of the most frequent non-crop habitat types in contemporary, highintensity agricultural landscapes and may therefore be important for the persistence of many farmland species. Managing field margins in a way that preserves, and preferably enhances, their value for biodiversity is therefore important. In the present study, we evaluate how the flora of uncultivated
A fundamental part of many computer algorithms involves traversing a binary tree. One notable example is traversing a space-partitioning acceleration structure when computing ray-traced images. Traditionally, the traversal requires a stack to be temporarily stored for each ray, which results in both additional storage and memory-bandwidth usage. We present a novel algorithm for traversing a binary
Popular Abstract in Undetermined 1971 förklarade president Richard Nixon, som så många amerikanska presidenter före honom, krig. Nixons fiende var dock något oortodox; Nixon förklarade krig mot cancer. I och med att senaten godkände ”National Cancer Act”, av pressen snabbt döpt till ”War on cancer”, hoppades Nixon att kunna utradera cancer med hjälp av kraftigt ökade anslag till cancerforskning koDespite recent advances in cancer treatment, truly innovative approaches are required to move beyond the modest benefits achieved to date. HAMLET is a human protein-lipid complex originally discovered in breast milk able to kill a wide range of tumour cells while leaving healthy, differentiated cells unaffected. The aim of this thesis was to identify mechanisms dictating HAMLET sensitivity and to
In this paper, we present a new color buffer compression algorithm for floating-point buffers. It can operate in either an approximate (lossy) mode or in an exact (lossless) mode. The approximate mode is error-bounded and the amount of introduced accumulated error is controlled via a few parameters. The core of the algorithm lies in an efficient representation and color space transform, followed b
While each new generation of processors gets larger caches and more compute power, external memory bandwidth capabilities increase at a much lower pace. Additionally, processors are equipped with wide vector units that require low instruction level divergence to be efficiently utilized. In order to exploit these trends in ray tracing, we present an alternative to traditional depth-first ray traver
This contribution presents a novel offline dynamic multi-objective optimization framework for high-pressure liquid chromatographic (HPLC) processes in batch elution mode. The framework allows for optimization of general elution trajectories parametrized with piecewise constant control signals. It is based on a simultaneous method where both the control and state variables are fully discretized in
Popular Abstract in Swedish Vad är en familj, vilka kan bilda en familj och vem bestämmer det? Hur ser föreställningarna kring den ideala familjen ut? Och varför anses det viktigt att ha kännedom om sitt ursprung och att tillhöra en familj, en släkt eller en nation? I denna avhandling undersöks den svenska familjepolitiken kring internationella adoptioner och assisterad befruktning. UndersökningenThe purpose of this thesis is to study the norms and values surrounding the family and the nation-state in Swedish family policy as they appear in Official Government Reports (SOU) on international adoption and assisted reproductive technology (ART) between 1953 and 2007. I argue that the committees’ reports can be viewed as normative statements constituting a hegemonic state discourse. The method
Cavitation is common in high-pressure homogenizers, and has severe negative effects such as noise and mechanical wear, but may also have a beneficial effect in promoting fragmentation. Greater knowledge concerning cavitation in the homogenizer valve is thus important in optimizing the design and utilization of emulsification equipment. The aim of this study was to locate the region of cavitation a
We propose a powerful hardware architecture for pixel shading, which enables flexible control of shading rates and automatic shading reuse between triangles in tessellated primitives. The main goal is efficient pixel shading for moderately to finely tessellated geometry, which is not handled well by current GPUs. Our method effectively decouples the cost of pixel shading from the geometric complex
This column examines the texture cache, an essential component of modern GPUs that plays an important role in achieving real-time performance when generating realistic images. GPUs have many components and the texture cache is only one of them. But it has a real impact on the performance of the GPU if rasterization and memory tiling are set up correctly.
Cylinder pressure sensors provide detailed information on the diesel engine combustion process. This paper presents a method to use cylinder-pressure data for prediction of engine emissions by exploiting data-mining techniques. The proposed method uses principal component analysis to reduce the dimension of the cylinder-pressure data, and a neural network to model the nonlinear relationship betwee
We propose a generalized approach to decoupling shading from visibility sampling in graphics pipelines, which we call decoupled sampling. Decoupled sampling enables stochastic supersampling of motion and defocus blur at reduced shading cost, as well as controllable or adaptive shading rates which trade off shading quality for performance. It can be thought of as a generalization of multisample ant
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https://www.lth.se/omlth/lth-i-korthet/ - 2026-07-16
It is common in the process industry to displace one fluid by another. During the displacement process an unwanted mixing between the two phases is unavoidable and being able to estimate this mixing is of great importance when trying to minimize product losses and improving the quality of the final product. A method for simulating the displacement process using commercial CFD codes was developed a
