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The current demands on Swedish steel industry to produce low quantity batches of specialized products requires research on steel casting processes. There are several physical processes that need be taken into account for this problem to be viewed in full light such as thermal-processes, solidification and fluid dynamics. This work focuses on the fluid-dynamics part; more specifically, the dependence of flow quality within the caster on nozzle and mould geometry. The simulations are carried out using a scale-resolving method, in specific LES (Large Eddy Simulation) which is coupled with a DPM (Discrete Phase Model) to model Argon behaviour. The results of these simulations are presented and validated against physical experiment and data from industrial trials. Conclusions are drawn regarding optimal nozzle types in respect to different mould geometries. The mould eigenfrequencies are shown to exhibit a connection with the casting velocity. This results in so called sweet spots in casting velocity where flow irregularities due to sloshing is minimal. It is shown that the mountain type nozzle is preferable for smaller geometries whilst comparatively larger geometries benefit from a cup type. / FLOWFLEX CC

For an eSports commentator, the ability to promote the rivalry between the competitors is just as important as fast and accurate commentary. Thus, it is of interest how an experienced commentator achieves this promotional language per some theoretical framework. Using the relatively new and unexplored linguistic field of promotional metadiscourse the quality of commentary can be evaluated quantifiably. Thus, this paper investigates the promotional language used by accomplished eSports commentators, in contrast to inexperienced novices, in the game StarCraft II. This is achieved with a lexical analysis of two StarCraft II commentaries using categories of promotional language previously identified in press releases. Experienced commentators were found to have a much more extensive and varied vocabulary than their inexperienced counterparts, adopting stronger evaluative adjectives and adverbs, as well as metaphorical language, in their commentaries. After comparing the commentaries with each other, the comments of two experienced commentators were compared. In this analysis, the same results were found in regards to commentator experience, as the less experienced commentator in this team featured less varied and weaker evaluative language than his more experienced co-commentator, yet more varied and evaluative than the novices. This paper shows that metadiscursive analysis methods can be fruitfully applied to non-academic discourses, as well as shining a light on the entertainment genre of eSports as a subject for further study. / Denna uppsats utforskar språket som används av etablerade eSportskommentatorer, i jämförelse med oerfarna nybörjare, i spelet StarCraft II. Detta har gjorts genom att analysera eSportskommentarmaterialet från två matcher med hjälp av en modell med kategorier för befrämjande språk, framställd för pressmeddelanden. Analysen fann att erfarna kommentatorer hade ett betydligt bredare och mer varierat ordförråd än sina mer oerfarna motparter, till exempel, genom användandet av mer starkt värderande adjektiv, förstärkande adverb och metaforer. Efter analysen av de två kommentarmaterialen gjordes en analys för liknande mönster av de två erfarna kommentatorernas språk. Denna jämförande analys fann att skillnaden i ordvalet även var knuten till kommentatorns erfarenhet, då den mindre erfarne kommentatorn hade ett mer begränsat och mindre varierat ordförråd än den mer erfarne kommentatorn, men betydligt mer varierat än noviserna. Denna uppsats visar att metadiskursiva metoder kan användas för att analysera icke-akademiskt språk, samtidigt som den visar på ett behov att undersöka E-sportsspråket som en genre.

The aim of this thesis is to design a proposal of Transfer table electromechanical earmarked for transporting packs of sheets of tin with balance-sheet of electromechanical and electrohydraulic construction and to make important technical calculations. The introduction contains a description of the used constructional solution with the description of the individual parts of the transfer table and survey used components from different producer. The work includes functional calculations, which mainly includes the design and control of power running and lifting gear, calculate speeds and lift loads, the chain drives and other assemblies Transverse. Conclusion of this work deals with the assessment of the frame strength of the Transfer table using the finite element method. Further the work deals with the assessment of the maximum capacity of the machine and with any design modifications. The work also contains a design documentation, especially the plan of the Transfer table and detailed drawings of the frame and eccentric casters.

Immediate occupancy and functionality of critical facilities including hospitals, emergency operations centers, communications centers, and police and fire stations is of utmost importance immediately after a damaging earthquake, as they must continue to provide fundamental health, emergency, and security services in the aftermath of an extreme event. Although recent earthquakes have proven the acceptable performance of the structural system in such buildings, when designed according to recent seismic design codes, in many cases damage to the nonstructural components and systems was the main cause of disruption in their functionality. Seismic isolation is proven to be an effective technique to protect building structures from damaging earthquakes. It has been the method of choice for critical facilities, including hospitals in Japan and the United States in recent years. Seismic isolation appears to be an ideal solution for protecting the nonstructural components as well. While this claim was made three decades ago, the supporting research for freestanding (unanchored) equipment and contents (EC) is fairly new. With the focus on freestanding EC, this study investigates the seismic performance of sliding and wheel/caster-supported EC in fixed-base and base-isolated buildings. The study adopts a comparative approach to provide a better understanding of the advantages and disadvantages of using each structural system. The seismic response of sliding EC is investigated analytically in the first part of the thesis, while the response of EC supported on wheels/casters is examined through shake table experiments on two pieces of hospital equipment. The study finds base isolation to be generally effective in reducing seismic demands on freestanding EC, but it also exposes certain situations where isolation in fact increases demands on EC. Increasing the frictional resistance for sliding EC or locking the wheel/casters in the case of wheel/caster-supported EC is highly recommended for EC in base-isolated buildings to prevent excessive displacement demands. Furthermore, the study suggests several design probability functions that can be used by practicing engineers to estimate the peak seismic demands on sliding and wheel/caster-supported EC in fixed-base and base-isolated buildings. / Dissertation / Doctor of Philosophy (PhD)