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 23 for “"Material technology"”.
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'The emotional wardrobe': a fashion perspective on the integration of technology and clothing
Since the Industrial Revolution, fashion and technology have been linked through the textile and manufacturing industries, a relationship that has propelled technical innovation and aesthetic and social change. Today a new alliance is emerging through the integration of electronic technology and …
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Vibration and Aeroelasticity of Advanced Aircraft Wings Modeled as Thin-Walled Beams--Dynamics, Stability and Control
… is also developed. Based on the piezoelectric material technology, a worst case control strategy based on the minimax theory towards the control of aeroelastic systems is further developed. Shunt damping within the aeroelastic tailoring environment is also investigated. The major part of this …
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Towards inert cores for investment casting
Improvements in material technology allow gas turbines to be run at ever increasing temperatures and speeds. As a consequence, blades in the high pressure part of the turbine are subject to an extremely high level of oxidative attack. These blades are cast from specialized alloys in ceramic moulds …
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The mechanics of plastic-aluminum composite I-beams
… developed with plastic-aluminum composite technology. Plastic-aluminum composites in structural beam/frame/truss elements are a relatively new concept that has seen little, if any, application in modern construction. This technology has considerable potential to add innovative choices to …
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Design of a composite combat helmet liner for prevention of blast-induced traumatic brain injury
… is the inclusion of moveable or deformable materials sandwiched within foam to dissipate the blast energy, reduce the peak transmitted pressure, and stretch the blast waveform before it reaches the brain. Filler materials explored in this work include glass beads, aerogel, glycerin, and …
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Go-to-market process for new aerospace transparencies
… successful industrialization of a new product or technology. Texstars is a Texas-based aerospace manufacturer that is currently transitioning a new transparency (optically clear structural material) product based on a polyurethane material technology branded TexeronTM, from R&D to production. …
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Investigation of organic composition of potential plants as alternative fiber in paper making industry
… a country that rich with a source of agro waste material. Three different crops had been studied which include the pineapple (Ananas Comosus) leaf, corn (Zea mays) stalk and Napier grass (Pennisetum purpureum). Those crops were characterized as agro waste material in Malaysia and have a high …
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Making a Bioempire: The Indian Encounter with Bt Technology
… corporations. This study shows that Bt technology and the neoliberal order were internally connected in a system of power relations that I call 'bioempire'. Examining the dynamic of the making of a bioempire—how it emerged, how it was contested, and how it was stabilized—I focus on four …
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Mid-Wave and Long-Wave Single Uni-polar Barrier Infrared Detectors Based on Antimonide Material Systems
… with regard to low operating temperature, material yield and processing difficulties. A newer material technology known as type-II indium arsenide/gallium antimonide strain-layered superlattice has received much attention for its potential superior performance from lower dark current, …
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Transonic flutter prediction and aeroelastic tailoring for next-generation transport aircraft
… can limit the eciency gains seen by better material technology. As a potential approach for mitigating utter, additively manufactured lattice structures are aeroelastically tailored to increase the flutter margin of wings. Adaptive meshing techniques are used to design the topology of the …
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RELATIVISTIC BACKWARD WAVE OSCILLATOR WITH A GAUSSIAN RADIATION PATTERN AND RELATED TECHNOLOGIES
… handling ability of a single RBWO is limited by material technology. Since it is always desired to generate higher microwave power than a single microwave device can produce, an N-way power combiner is proposed as an attractive alternative. A novel structure, which is an oversized circular …
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Comparison of Retention between Milled and Conventional Denture Bases: A Clinical Study
<p>The advancement in dental material technology led to the improvement in the fabrication method of PMMA denture bases. Denture base adaptation can be influenced by the amount of polymerization shrinkage that occurs during the processing method of fabrication. CAD/CAM dentures milled from …
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Solid Oxide Fuel Cell Modeling at the Cell Scale - Focusing on Species, Heat, Charge and Momentum Transport as well as the Reaction Kinetics and Effects
… are made during the recent years, however the technology is still in the early phases of commercialisation. Fully coupled computational fluid dynamics (CFD) approaches based on the finite element method (with the software COMSOL Multiphysics) in two-dimensions are developed, in several steps, …
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Chinese Scholar Garden Detail with Grace of Rainwater
… architectural design including aspects of space, material, technology, tectonic detail, aesthetic idea and the cultural meaning of rain. The ideology of rain as one aspect of Neo-Confucianism "Views of Nature of China" developed by Zhu Xi (Chu Hsi) (1130-1200) has continued to influence Chinese …
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Continuum Mechanics Modelling of Corrugated Board
… content, strain fields, stress fields and material strength play important roles for the time to failure. Supplementary, the stochastic nature of material and moisture load is obstructing the prediction of a reliable measure of lifetime. This work is composed of a number of portion …
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The influence of ageing on the salt-frost resistance of concrete
… proposed that, although different for different materials, it is this substantial change in pore structural properties that is the primary cause of the observed influence of carbonation on the salt-frost resistance. A limited XRD investigation of carbonated materials with and without slag as part …
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Studies of moisture and alkalinity in self-levelling flooring compounds
… in buildings and health. <p> Cementitious materials, when cast, contain excess water since this is necessary for workability and for flow properties. The pore solutions in cementitious materials, besides being high in water content, often have a high pH. High-moisture conditions can cause …
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Investigation of the Dynamic Performance of a Cable-Stayed Footbridge
The developments in conceptual design, material technology and efficient construction techniques enabled the creation of longer, lighter, slender and stylish Cable-Stayed Foot Bridges (CSFB). Hence, modern CSFB can be characterized by interacting phenomena like cable nonlinearities, deck dynamic …
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Enhancing hot tooling to forge high-γ ′ superalloys
… cracking and the application of proper die materials to meet the elevated temperature requirements. This research aims at appraising the existing hot die material technology to facilitate the effective hot forging of high-γ ′ alloys like Udimet 720 with increased efficiency of the forgings …
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Internal frost damage in concrete - experimental studies of destruction mechanisms
The aim of the study was to identify mechanisms acting at internal frost destruction of concrete. By 'internal frost destruction' is meant damage caused inside concrete that is moisture insulated from the surroundings, i.e. when no moisture exchange with the surroundings is possible during …
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