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.
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Showing 1 to 20 of 375 for “"TA Engineering (General). Civil engineering (General)"”.
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Acoustic and non-acoustic performance of coal bottom ash as sound absorptive material for reducing railway noise level
… or landfills, which has contributed to environmental issues. Usage of CBA in concrete production in reducing railway noise pollution reduce the environmental pollution. This study presents the acoustic and non-acoustic performance for a new concrete product that consists mainly of CBA. Grade 30 …
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The effects of grass and rainfall pattern on the matric suction of acidic soil slopes
… to slope failures are that the matric suction starts to decrease when water infiltrates the soil. Although many studies have been carried out to improve stability of slope, most studies often ignore the influence of matric suction induced by vegetation. Grass can be classified into many …
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Solidification, microstructure and mechanical properties of mg-nd-gd-zn-zr cast magnesium alloy with yttrium, erbium and samarium additions
… because of their light weight. The main limitation to progress in this direction is paucity in the mechanical properties of magnesium alloys. Rare earth elements have been used as alloying elements to improve mechanical properties and introduce a new Mg-RE-Zn-Zr alloy with modified structure …
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Development of a Novel Gradient-Force Tapered Fibre Optical Tweezers System for 3D Optical Trapping at Near Horizontal Fibre Insertion Angles
… Tweezers”. Furthermore, the use of fibre facilitates the decoupling of the optical trapping beam from the microscope optics, which provides further scope for the development of a portable optical trapping system, and the potential for uncomplicated integration with other advanced microscopy …
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DEVELOPMENT OF LASER MICRO-FABRICATED SURFACES TO ACCELERATE & ENHANCE ENDOTHELIAL CELL ADHESION AND PROLIFERATION
… substrates to accelerate and enhance bovine aorta endothelium (BAE-1) cell adhesion and proliferation. The response of BAE-1 and human coronary smooth muscle cells (HCASMCs) were studied, including cell adhesion, proliferation, β-actin expression, migration velocity, and migration …
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Development of A closed Loop Control System for Vibration Assisted Grinding
… However, it is essential and much needed to undertake such processes based on a scientific approach, i.e. the process to be quantitatively controlled and optimized rather than carried out in a trial-and-error manner. Vibration assisted machining been has demonstrated to reduce the amount of …
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Inverse Modelling of Material Parameters for Rubber-like material: Create a New Methodology of Predicting the Material Parameters using Indentation Bending Test
… have been widely used in industries, such as engineering fields and biomedical fields. The mechanics of membranes and material parameters identification is an important research area. In this work, different inverse FE modelling approaches to extract material parameters (Ogden model) has been …
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Digital Holography and Optical Contouring
Digital holography is a technique for the recording of holograms via CCD/CMOS devices and enables their subsequent numerical reconstruction within computers, thus avoiding the photographic processes that are used in optical holography. This thesis investigates the various techniques which have been …
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Cantilever Dynamic Analysis in Tapping Mode Atomic Force Microscopy
Tapping mode atomic force microscopy (AFM) is becoming popular in the area of biology, as well as for polymer and semiconductor materials science. Unlike other AFM techniques, it only makes intermittent contact with the sample, which largely reduces any potential surface damage to soft materials, …
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A method for the probabilistic method assessment of structures containing defects
… carried out, a need for a new analysis of the statistical properties of fracture toughness is identified. Fracture is linked to the cracking of critically sized carbide, and a preliminary analysis showed that the distribution of carbide in steel could be described by an exponential distribution. …
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Comparing the risks of diverse methods of electricity generation using the J-value framework
… is split into two volumes. The first volume contains part one, in which the J-value framework is introduced and developed. The loss of life expectancy is a key parameter in the framework, and general risk models for calculating this parameter are developed in terms of exposures and responses. …
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Characterisation of silicon photonics devices
… be produced in mass market has become very important. This thesis describes and outlines the characteristics of high index contrast waveguides as a building blocks that can be designed, fabricated and employed on devices in silicon photonics. Initially in this work, a fully vectorial H-field …
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Hydrodynamic behaviour of gliding hydrofoil crafts
… improves the seakeeping properties and stability of the craft compared with a conventional planing hull. In addition, the GHC has a more simple structure and higher stability when compared to a hydrofoil craft. Unlike conventional planing hulls and hydrofoil crafts, the study of …
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The probabilistic assessment of small homogeneous UK earthfill dams affected by climate change; Precipitation
The focus of this research is on small, well-established, homogeneous earthfill embankment dams that are currently in use and whose performance was previously outside the Reservoirs Act 1975, but are now governed by the new Flood and Water Management Act 2010. Many uncertainties are associated with …
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Application of cybernetic models in the study of safety and economics of nuclear power systems and other high risk organizations: A study of nuclear power and high risk organizations to understand the central role of management in the safety and economics of these operations
… decisionmaking capability of management is important in ensuring that the operators are adequately prepared to deal effectively with accidents. This means that management has to understand the risk of power production and adequately deal with it, so that the viability of the utility is not …
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Graph-theoretic channel modeling and topology control protocols for wireless sensor networks
… protocols which provide reliability while maintaining the topology in an energy efficient manner. For the above problems, real wireless sensor network traces were collected and extensive simulations were performed for evaluating the proposed protocols. Accurate simulation and analysis of …
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A study of organic Rankine cycle systems with the expansion process performed by twin screw machines
… from low grade heat is one of the most important requirements for reducing their investment cost and optimising system efficiency. The aim of this work was to study, model and analyse an Organic Rankine cycle (ORC) system using a twin screw expander to generate the power output, with …
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