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The paper presents a study of the dynamics of non-stationary shock wave and its interaction with the boundary layer in a transonic flow inside a channel with a bump. The turbulent flow is handled using Large Eddy Simulations (LES). The computations are done with the recently developed multidimensional upwind scheme and with two other commercial codes. The aim is to improve the understanding of the

Popular Abstract in Swedish Avhandlingen syftar till att bidra till förståelsen av hur det kan komma sig att kristendomen i början av det andra århundradet utvecklas till en icke-judisk religion. Att de judendom och kristendom idag uppfattas som två olika religioner är inte så märkligt. Dock, om man betänker att kristendomen ursprungligen var en del av det första århundradets judendom så är det egThis book attempts to answer the question of how it is possible that Christianity in the beginning of the second century C.E. had developed into a non-Jewish, Gentile religion. Since Christianity was originally one of many Jewish factions within the diversified Judaism of the period, and one that even primarily seems to have directed its attention to the people of Israel, the problem of its separa

Requirements Engineering and Testing are considered inseparable and together enable successful projects. One could make a statement that serious negligence of any of the two will bring catastrophic consequences for the project, delays, failures and unhappy customers. Thus, alignment and cooperation between the two are not only recommended but highly required for contemporary complex software and s

Abstract in UndeterminedThe report is an evaluation of five years of Linnaeus-Palme exchange programme between the chemistry departments at University of Gothenburg, Sweden and University of the West Indies, Jamaica. The exchange programme gives students and teachers at the two universities the possibility to study and teach at the partner university to better understand the international implicat

There is general consensus among road safety researchers that the crash count is not linear with respect to the traffic volume. However, the now-preferred practice of estimating exponents on traffic volume not only results in parameters that cannot be confidently applied in other contexts, but also offers very little insight into the relationship. This paper describes a preliminary investigation o

The evaluation of the effectiveness of safety installations (such as emergency exits, lighting, etc.) is a key factor to improve the evacuation performance of buildings or transportation systems. In fact, even though an installation is designed to achieve a given design goal, it could happen it does not perform as intended. According to the Theory of Affordances, this could be interpreted in relat

Introduction The hotel check-in is usually treated as a facilitating service as it is often assumed only to facilitate the use of the core service i.e. the lodging. In addition the check-in is a highly standardized process, which is repeatedly performed every day. Being only one part of the front office’s duties executed at the reception desk, it is usually given scant attention from management. L

Inventory control systems used in practice are quite often modeling the lead-time demand by a normal distribution. This may result in considerable errors when the real demand is low and discrete. For such demand, it is usually better to use a discrete demand distribution. However, this will increase the computational effort. A natural question is under what circumstances a normal approximation is

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A pattern reconfigurable stacked microstrip patch antenna is presented for 60GHz central frequency. The antenna reconfigurability is realized using shorting pins in the antenna radiating aperture. Investigation is presented for different shorting pins locations. Influence on the antenna radiation pattern and return loss is studied. Measurement results for the antenna prototype agree with simulatio

Aviation fuel is a petroleum product that fulfills the Standard Specification for Aviation Turbine Fuels. Crude oil has been the raw material for production of aviation fuels for many years. Since the availability of crude oil is predicted to be limited in the future, alternative raw materials for aviation fuels are highly desirable. A Swedish company, Oroboros AB, has developed a novel clean synt