Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 15 of 15 for “"Technologies not elsewhere classified"”.
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Effects of controlled vibration induced gapping on the torque performance of lubricated ball bearings
Ball bearings that are not sufficiently preloaded may be subjected to gapping and transient high contact stresses during launch. Despite the fact that such phenomena may cause bearing damage or degrade torque performance and lubricant life, the dynamic behaviour of bearings subjected to typical …
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The effects of operating conditions on the hydrodynamic lubricant film thickness at the piston-ring / cylinder liner interface of a firing diesel engine
Conventional investigations into the performance of piston-rings in internal combustion engines are performed at relatively low speeds and consider only steady state operation conditions. Loss of power in internal combustion (IC) engines is becoming an increasing issue when they are operated at …
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Automatic image alignment for clinical evaluation of patient setup errors in radiotherapy
… to the beams. An inaccurate setup may result in not only recurrence of the tumour but also medical complications. The aim of the project is to develop a novel image processing system to enable fast and accurate evaluation of patient setup errors in radiotherapy by automatic detection and …
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A study of phase advance networks for A.C. control system stabilisation
… Is designed to produce the characteristic notch response and the resulting modulating frequency characterlston is discussed; The filter is considered from a pole-zero aporoach and the limitations and effects caused by temnerature, component tolerances and carrier frequency drift are …
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Modelling and design of a miniature low power solenoid valve
This thesis describes research in the area of solenoid modelling and design. It is anticipated that the model described will contribute to the design of solenoids for operation in an intrinsically safe environment Firstly, the requirements for intrinsic safety are described including an overview of …
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South Asian females and technology education: A study of engagement and disengagement in Britain
… had focused on addressing primarily, if not exclusively gender issues, whereas the lives and decision-making processes of the South Asian girls and women were informed by the experience of a particularly ethnicised-gendered experience. Consequently the thesis moves beyond focusing …
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Advancing acoustography by multidimensional signal processing techniques
The research presented in this thesis is the investigation into multidimensional signal processing for acoustography. Acoustography is a novel inspection technique similar to x-ray. However, instead of using hazardous ionising radiation, acoustography is based on sound. Inspection data are …
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Selective lossless retention of critical thermal data within highly compressed thermal video sequences
The research described in this thesis involves the development of a video coding scheme which provides lossless Region Of Interest (ROl) coding specifically targeted toward the compression of thermal video sequences. In particular the scheme is designed to provide lossless coding of critical …
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Performance of reduced-scale Vortex amplifiers used to control glovebox dust
… and pneumatic devices lack. Fluidic devices will not easily wear out, they have a relatively fast response and in some cases they may be cheaper than an equivalent conventional device. Most importantly, they have fewer moving parts (usually none) so are inherently reliable, so long as the fluidic …
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A problem solving strategy based on knowledge-based systems
… approach, where KBS is considered as simply another software technology to be used within an integrated solution. The problem considered is the automatic analysis of photoelastic fringe patterns, and KBS methods are employed alongside conventional image processing techniques to produce an …
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Development and analysis of hybrid adaptive neuro-fuzzy inference systems for the recognition of weak signals preceding earthquakes
… network to classify as EEPs, signals that are not exactly the same but do approximate the average EEP model. On the other hand, signals that look like EEPs but do not approximate enough the average model are being suppressed preventing false classification. The effectiveness of the proposed …
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Effervescent proliposomes for aerosol delivery to paranasal sinuses
… delivery to a nasal cast. Choice of carrier did not affect the liposome’s ability to withstand shearing. A novel system of a Sar-Gel® (water indicating paste) coated clear nasal cast fixed to a two-stage impinger system was set up to analyze drug deposition within the nasal cast cavity. Sinus …
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Lossless image compression for aerospace non-destructive testing apllications
… techniques. Such investigation provides not only the theoretical background, but also the comparative benchmarks for the research project. Chapter 2 provides general knowledge of image compression. The basic predictive coding strategy is introduced at the beginning of chapter 3. …
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Economic analysis and environmental impact of energy usage in microbusinesses in UK and Kurdistan, Iraq
… damage to the earth and its environment may not be reversible. There is an urgent need to reduce the use of fossils fuels and substituting it with renewable energy sources such as wind, tidal and hydroelectric. Solar source seems to be the most promising due to its environmental friendly …
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Noodle, Noodle, Cat: Extra-Subjective Agency in Web-based Art practice
This research investigates the complexities of artistic authorship under the production conditions of the web. It is driven by a fascination with the possibilities of expanding the authorial sphere of the artwork to include the productive capacities of other subjectivities, entities and processes. …