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X-ray microscopy offers the opportunity to image biological and radiosensitive materials without special sample preparations, bridging optical and electron microscopy capabilities. However, the performance of such microscopes, when imaging radiosensitive samples, is not limited by their intrinsic resolution, but by the radiation damage induced on such samples. Here, we demonstrate a novel, to the
The enhanced heat transfer mechanism and parameter optimization of an interrupted microchannel heat sink with rectangular ribs (IMCHS-R) was numerically studied for Reynolds number ranging from 100 to 900, using ANSYS Fluent. Interrupted microchannel heat sinks with different kinds of rectangular ribs having different width, length, and locations were compared with a straight microchannel and micr
We present CasADi, a free, open-source software tool for rapid, yet efficient solution of optimization problems in general and dynamic optimization problems in particular. To the developer of algorithms for numerical optimization and to the advanced user of such algorithms, it offers a level of abstraction which is notably lower, and hence more flexible, than that of algebraic modeling languages s
Avrinningsområdet Mundaú har sitt ursprung i den Brasilianska delstaten Pernambuco och rinner i sydöstlig riktning mot Mundaúlagunen längs Atlantkusten tillhörande delstaten Alagoas. Området faller under nationell jurisdiktion, är relativt oreglerat och erfar både översvämningar och torrperioder. Modellering av avrinningsområdets hydrologi kan ge en fördjupad förståelse av dessa händelser och hur The relatively unregulated, union domain Mundaú river basin, upper reaches originating in the Brazilian state of Pernambuco and flowing southeast to the Mundaú Lagoon along the Alagoas state’s Atlantic coast, suffers from both flooding and drought. Modeling the basin’s hydrology can lead to a deeper understanding of these events, and how changes within the basin can affect its hydrology. This stud
This report tries to introduce a new way to use high expansion foam in case of a fire, namely as a protection for property. The use of high expansion foam as a tool to extinguish a fire in a building is widely known in Sweden. But the tool is not the first action taken by the fire service and the knowledge of how to use high expansion foam is not very high. Information on how Swedish rescue serv
The purpose is to answer the question: what are the consequences of the EU discourse on civilian crisis management for the social structures? Critical discourse analysis has been used, both as theory and as method together with social constructivism and the concepts of power and policing. Furthermore, semi-structured interviews with 16 Swedish police officers with experience from EU missions were
Imagining how contemporary conflicts have divided societies in the recent times put one in a position to think of possibilities that will improve the activities of reconciliation initiatives for a lasting peaceful coexistence in the aftermath of conflicts. In Rwanda series of conflicts have emerged since the end of colonial rule till the genocide in 1994 calling for a necessary transitional justic
The famine in the Democratic People’s Republic of Korea has once again reached a point of emergency wherein the international community has a moral duty to protect the population from their government. Although the member states of the United Nations have affirmed a global Responsibility to Protect, the ways in which that responsibility are carried out are often contradictory and help to sustain t
This case study considers what appears to be a political convergence in Argentina, Brazil and Uruguay. Four political transitions that have occurred in all three countries are studied: the military coups of 1964, 1973 and 1976, the transitions back to democracy, the implementations of liberal economic reforms, and the recent turns leftwards. Three different types of explanations are presented, ea
Marine protected areas (MPA) have been widely used the recent years, as an alternative to the traditional management tools, in order to increase the yield and the health of a stock. The present study shows how cod population in Öresund would respond under different spatial and temporal MPA and how they will affect the gill-net fisheries in the area. For that reason, a simple model, based on logist
Previous research has focused on the correlation between CSR and returns, whilst considerably less efforts have been undertaken to investigate whether CSR affects a company’s valuation. Therefore this paper focus on investigating the correlation between these two variables. This is done by comparing valuation multiples of constructed indices consisting of bad and socially responsible companies to
The purpose of this thesis is to discuss the reasoning behind the prominence of resilience building in Malawi’s development strategies, how resilience building is performed in Malawi, and what the potential and consequences of resilience in Malawi might be. In observations of a resilience building project and interviews with development practitioners, it was found that resilience had become promin
The aim of this essay is to study if the Chicago Board of Options Exchange’s volatility index VIX can be used as an indicator on the stock market, and if an investor can make a profit on portfolios by using a volatility strategy based on VIX. The study is based on nine volatility strategies that are tested on four different portfolios containing stocks from Mega Cap, Large Cap, Mid Cap and Small C
