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The design of a mooring system for a floating structure is a significant challenge; the choice of line structure and layout determine highly non-linear hydrodynamic behaviors that, in turn, influence the dynamics of the whole system. The difficulty is particularly acute for Self-Reacting Point Absorber Wave Energy Converters (SRPA WEC) as these machines rely on their movements to extract useful power from wave motions and the mooring must constrain the SRPA WEC motion without detracting from power production. In this thesis this topic has been addressed in an innovative way and new ideas on how these devices should be moored were investigated. As part of the study, an optimization routine was implemented to investigate the optimal mooring design and its characteristics. In this process, different challenges were faced. To evaluate the different mooring configurations, a high fidelity representation of the system hydrodynamics is necessary which captures the non-linearities of the system. Unfortunately, high-fidelity modeling tends to be very computationally expensive, and for this reason previous studies based mooring design largely relies on simplified representations that only reflect part of the mooring design space since some physical and hydrodynamic properties are dropped. In this work, we present how a full hydrodynamic time domain simulation can be utilized within a Metamodel-Based Optimization to better evaluate a wider range of mooring configurations spanning the breadth of the full design space. The method uses a Metamodel, defined in terms of the mooring physical parameters, to cover the majority of the optimization process a high fidelity model is used to establish the Metamodel in a pre-processing stage. The method was applied to a case study of a two-body heaving SRPA WEC. Survivability constrains where introduce into the model using a new statistical approach which reduces the execution time, and allowed the optimization routine. The analysis results lead to the conclusion that for SRPA WEC the mooring loads have a significant impact on how the body reacts with the waves, affecting both the energy that enter the system as well as the energy that is extracted as power. This implies that, in some cases, the mooring lines need to be considered in early stages of the designs as opposed to an afterthought, as is typically done. Results indicate that an optimal mooring design can result in a 26% increase in total annual power production. In addition, the mooring lines impact on mitigating parasitic pitch and roll were analyzed. It was established that in regular waves, the mooring lines can reduce the parametric excitations and improve the power extraction up to 56% for a particular sea state. By applying a computationally efficient iterative design approach to a device's mooring, parasitic motions and suboptimal device operation can be reduced, ultimately making WECs a more competitive source of energy. / Graduate / 0346 / 0537 / 0548 / 0547 / jortiz@uvic.ca

The aim of this thesis was to develop a model of a receiver which could be quickly used to analyze radiated interference levels from data captured at the output of the antenna equipment used to measure radiated energy. Active circuits were mainly used in developing this model for the ease with which the design and simulations could be carried out in OrCAD. The guiding document for the thesis work has been CISPR 16-1-1 (International Special Committee on Radio Interference part 16-1-1) which specifies the characteristics and performance of equipment for the measurement of radiated interference. The testing of this receiver model was carried out as far as possible based on the test setups recommended in CISPR, and all results have been compared with the standards laid down for the model. Using the results, it will be shown that a CISPR EMI receiver can be modeled as a simple EMI receiver consisting of filtering, mixing and detecting circuits built according to specifications.

The theme of this work is the conversion of Word 2007 document to the HTML format. The work contains the analysis of existing convertors and description of their disadvantages and errors. The format of the OOXML document, especially WordprocessingML document, is described in detail. API used for work with OOXML documents is described too. The main contribution of this work is development of a new convertor of WordprocessingML documents to HTML format. This converor enables to divide the output to more parts. User can choose type of dividing: by sections or by style(s) of paragraph. The convertor is described in the last chapter.

The aim of this master thesis is to describe the requirements put on electronics and headlights within car industry, above all on the newly emerging 48V power network. In the thesis the principles of chosen DC/DC buck converter topologies are briefly described. In the next part of this thesis the converters are designed and manufactured. Further, the EMC chamber measurement of these converters and their subsequent evaluation is performed. In the last part the proposed converters are compared and evaluated.

Each elektronics device needs power supply voltage with special parameters. Voltage regulators warrant this special parameters. This thesis deal with principles of switching voltage regulator, especially step-down convertor, its features and ways to microprocessor based control of the convertor.

JetBrains MPS is a language workbench focusing on domain-specific languages. Unlike many other language workbenches and IDEs, it uses a projectional editor for code. The developer directly manipulates the program in its tree form (AST) and not by editing a text source code. This brings many advantages, but on the other hand requires time-consuming and complicated MPS language definition. The thesis elaborates on the possibility of automating the process of creating MPS language definition from its grammar description. It introduces the MPS editor, evaluates approaches of related projects and describes author's efforts to implement an MPS plugin that allows this import. The chosen approach and the selection of tools used for implementation are justified in the thesis. We point out important problems that any similar project might deal with and we introduce some possible solutions. Furthermore, the thesis contains examples of imported languages, showing the potency of the chosen approach. The thesis also aims to lay groundwork for future extensions and suggest possible improvements.

Master’s thesis deals with the design concept of DC/DC convertor usable for a backup source with supercapacitors. The paper describes the theoretical knowledge of supercapacitors technology, principle of basic DC/DC convertors and their use in electrical energy storage systems. The thesis contains a description of the designed backup power system and its properties, which has been measured.

The main target of this thesis is to design and realize a prototype of a high capacity battery charger. The charger has been designed as a switching power supply based on a Flyback convertor with two transistors. As switching transistors the integrated circuit IR2110 has been selected. The convertor is controlled by a microcontroller board based on ATMega328 called Arduino Uno; some parts of the Arduino Uno Starter Kit are also used as LCD display, relay and button. In addition, an auxiliary source has been made; this one powers the integration circuit IR2110 and Arduino Uno board. Furthermore, this work introduces us to the processes of charging lithium batteries, types of lithium batteries and methods of charging the lithium iron phosphate (LiFePO4) battery.

This work deals with theoretical and practical basis for the creation of converter between LaTeX and Microsoft PowerPoint presentations. It discusses the use of LaTeX and the Beamer class for presentations, programmatic creation of PowerPoint documents using PowerPoint Primary Interop Assemblies and PresentationML. It outlines the use of the scanners and parsers generators GPLEX and GPPG respectively. It deals with the characteristics of today's tools for document conversion. And finally deals with the particular pitfalls of the design, implementation and testing of the application for conversion of documents between LaTeX platform and Microsoft PowerPoint.