The fully-pitched winding arrangement is one of the most radical changes in the design of doubly-salient reluctance motors in recent times. By replacing conventional shortpitched windings with fully-pitched windings, the resulting machine has a strong and position dependant mutual coupling between phases. The major torque producing mechanism is due to changes in mutual inductance with rotor position. This enables the windings to be better utilised, and with correct selection of excitation all phases can contribute useful torque all of the time. The increased winding utilisation requires a lower MMF per phase in comparison with a short-pitch wound machine with a single phase excited. Given a suitable winding configuration and machine dimensions, the copper losses for a given torque can be significantly lower than an equivalent conventional switched reluctance machine. Operation of a three phase fully-pitched winding switched reluctance machine has been studied theoretically, in simulation and experimentally. The experimental drive comprises of a D132 frame 12:8 machine, IGBT power converter and DSP controller. Operation with unipolar phase currents has been investigated over a wide speed range and performance compared with a conventional switched reluctance machine. Bipolar operation with several different excitation patterns has been investigated. Unipolar operation gives the largest torque/speed envelope with a simple controller, although bipolar modes can equal this with a more complex controller. Results show that for equal RMS phase current the average torque produced by four different modes of excitation are approximately equal. However, there is a large difference in the torque ripple and acoustic noise performance of each mode. Current control in switched reluctance machines is complicated by the non-linear nature of the load. By controlling flux-linkage rather than current a linear load model can be used. A discrete time 'dead-beat' flux-linkage controller has been implemented which gives superior phase current control performance to other types of controller with the same sample interval. A new method of constant torque operation based on 'flux ramps' has been proposed. This method gives predictable performance and enables constant torque operation over a wide speed range. A Genetic Algorithm has been shown to be very effective when applied to the problem of optimising the 'flux ramps' for minimum torque ripple. A speed controller has been implemented which makes use of the Genetic Algorithm optimised flux ramps to give smooth torque over a wide speed range.

This thesis explores the design and development of digitally extended, electro- acoustic (EA) pitched percussion instruments, and their use in novel, multi-media performance contexts. The proposed techniques address the lack of expressivity in existing EA pitched percussion systems. The research is interdisciplinary in na- ture, combining Computer Science and Music to form a type of musical human- computer interaction (HCI) in which novel playing techniques are integrated in perfor- mances. Supporting areas include Electrical Engineering- design of custom hardware circuits/DSP; and Mechanical Engineering- design/fabrication of new instruments. The contributions can be grouped into three major themes: 1) non-invasive gesture recognition using sensors and machine learning, 2) acoustically-excited physical mod- els, 3) timbre-recognition software used to trigger idiomatic acoustic actuation. In addition to pitched percussion, which is the main focus of the thesis, application of these ideas to other music contexts is also discussed. / Graduate

The main goal of this master’s thesis is to investigate the drawn down of floating particles in mechanically stirred vessels. The first part of the thesis summarizes necessary theory to cope with defined objectives of the thesis. The literature review of mixing reactors with floating particles can be found in this part of the work as well. The second part of the master’s thesis includes the preparation of the stirred tanks CFD model, simulation and comparing of experimental data from literature, as well.

A recombinat Chinese Hamster Ovary (rCHO) cell line designated as CHO SEAP was utilized in this investigation to optimize protein production. Two bench top stirred-tank bioreactors, namely a pitched-blade and a packed-bed basket bioreactor, were utilized for a comparative study to determine which bioreactor would produce the best results in terms of protein production. The objective of this research project was to provide basic data that shows cells cultured in a packed-bed basket bioreactor in perfusion mode will generate more protein product than cells in batch mode suspension culture with a pitched-blade bioreactor. The packed-bed bioreactor creates a homeostatic environment similar to the environment found in vivo, where waste products are constantly removed and fresh nutrients are replenished. Closed batch cultures do not provide a homeostatic environment. In batch culture systems, nutrients are depleted and waste products accumulate. The results from this experiment could help investigators involved in protein and/or vaccine production facilities select the appropriate bioreactor and mode of operation to optimize cell productivity for generation of a specific protein product. CHO cells have been used for the production of vaccines, recombinant therapeutic proteins, and monoclonal antibodies, and these cells are now the cell line of choice in the biopharmaceutical industry. Traditional vaccine production methods in egg embryos are slow and outdated, whereas roller bottle-based cell culture techniques are time consuming and have limited scalability. These limitations justify the need for development of stirred tank bioreactors. Cells cultured in a packed-bed bioreactor are not exposed to hydrodynamic forces, as is the case with pitched-blade bioreactors, allowing for maximum growth and protein expression. This mode of operation involves the constant removal of media depleted of nutrients and the addition of fresh media with more nutrients to keep the cells growing. Long run times decrease the constant need for re-seeding cells and re-establishing seed cultures, thus, reducing setup time and labor dramatically. Secreted products are automatically separated from cells in perfusion, eliminating filtration and membrane fouling. A detailed description of both modes of operation are discussed in this thesis.

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The diploma thesis deals with a project of a new building, a hotel in the municipality of Vystrkov. The object is made up of three ground floors. The first floor includes a restaurant with staff facilities, a lounge with a reception, facilities for the management of the hotel and a technical area. Wellness premises and hotel rooms with premises related to the accommodation can be found on the second floor. The third floor is designed for hotel rooms with premises related to the accommodation. There is one four-bed room, three three-bed rooms and fourteen double rooms in the hotel. The structural system of the building is formed with a combination of reinforced concrete frame and masonry system. The object is roofed mainly with a pitched roof; there is a walkable flat roof above the kitchen facilities and wellness premises.

The new building of Olomouc Central Europian Forum is concieved as an extension to the existing building of Olomouc Art Museum. It fills the space of existing vacant lot clining to the existing object from the west. The new building contains new spaces for modern art expositions and also creates enough storage capacity for the new and the existing building. The architectural solution results from the division of historic building estates and from the character of surrounging build-up area. The volume of the building rising from the site is created by five tracts oriented perpendiculary to the street boundary, that are of a simple shape of block with pitched roof. In the central part the tracts are transected by a traversing volume of a galery with glass pitched roof, that provides additional daylight for the central part and connects the new and the existing building. The facade of the new building is created as a doubled construction with the interior screen made of pure double glass and the exterion screen made of milk glass, that transmits enough difuse light into the inner spaces. There is a LED screen stretched in between these two transparent planes, thanks to which the facade glows in the dark with interesting light effects.

The subject of this thesis is six-storey concret basement multifunctional objekt. The building plot is located in Bratislava. The multifunctional object is designed with the view of the location. The Object will be used for trade and services and for living of a families. The object is in the shape of a rectangle. The main entrance and the driveway to the Object is at 1st ground floor level.The vertical supporting structures are formed by concrete pillars and walls with Ytong blocks that are insulated. The ceiling structure is made of concrete monolithic panels. The multifunctional object covers a pitched roof. The project was prepared by a computer program called Archicad.

This diploma´s thesis deals with the processing of project documenation for a four – storey, none – basement, hotel building with a restaurant in Bojnice. The restaurant and a bar is accessible from the first floor, with seperate entrances. Additionally, there are twenty-six aparments on the second and third floor, where two of the apartments are barrier-free. Technical rooms, and offices rooms are designed into the last floor.

This diploma thesis describes the design of an office building with underground parking banks and two apartments. The building is located in Novy Jicin. The building has three floors and one underground floor. The basement serves as a parking and storage areas. The first and second floor serves the administration of the bank. The third above ground floor includes two  flats. Roofed by mono-pitched roof, flat roof terraces and green flat roof. The thesis is a specialization of concrete and ventilation.