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 13 of 13 for “"micro-mechanisms"”.
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On-Chip Actuation of Compliant Bistable Micro-Mechanisms
Two compliant bistable micro-mechanisms have been developed which can be switched in either direction using on-chip thermal actuation. The energy storage and bistable behavior of the mechanisms are achieved through the elastic deflection of compliant segments. The pseudo-rigid-body model was used …
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Auctions with Variable Supply and Competing Auctioneers
… bidding in variable supply auctions – trade mechanisms in which a monopoly seller determines supply in view of the received bids. These trade mechanisms are used in a variety of economic contexts, e.g. financial markets for Treasury bills and Initial Public Offerings. The final part of the …
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Statistical modelling of the transition toughness properties of low alloy pressure vessel steels
… factors and failure modes; therefore, the micro-mechanisms of the ductile and brittle failure are explored and an assessment of the current best thinking on the modelling of crack arrest toughness is also considered. It has been established in this work that a highly accurate representation …
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Microscale Investigation of the Influence of Interparticle Cohesion on the Macro-Behaviour of Soil
Despite the growing focus on understanding the micro-mechanisms governing soil behaviour in recent years, particularly through advanced computational methods such as discrete element method (DEM), cohesive interactions between soil particles are often neglected and simplified. This thesis aims to …
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Live Longer, Work Longer? Evidence from Sweden’s Ageing Population
… labor supply, and investigating the underlying mechanisms driving these trends. The results of this work illustrate a recent trend of prolonging working life in Sweden, whereby average labor income has increased at older ages, and younger cohorts have increasingly postponed their retirement. …
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Overcoming the limits of strain-induced martensitic transformation in metastable face-centered cubic alloys
… such an intrinsic dilemma and explores potential microstructural design guidance with the aids of in-situ experiments and theoretical calculations. Two categories of approaches, respectively focusing on phase transformations and plastic deformation micro-mechanisms are explored. Specifically, …
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‘A river under the earth’: the silencing of conflict-related sexual violence survivors in Bosnia-Herzegovina, Croatia and Kosovo
This research investigates the social mechanisms which contribute to the silencing of conflict-related sexual violence (CRSV) survivors in the post-conflict, post-Yugoslav region with a focus on the case studies of Bosnia-Herzegovina (BiH), Croatia and Kosovo. This involves an assessment of what …
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Framing the future : cognitive frames, strategic choice and firm response to the fiber-optic revolution
… question: to what extent and through which mechanisms do managerial frames about the technology and environment affect firm strategic response to technical change? My dissertation is a multi-method examination of this question in the specific context of communications technology firms' …
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Identification of Macro- and Micro-Compliant Mechanism Configurations Resulting in Bistable Behavior
… which result in bistable behavior. Bistable mechanisms have use in many applications, such as switches, clasps, closures, hinges, and so on. A powerful method for the design of such mechanisms would allow the realization of working designs much more easily than has been possible in the past. …
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Processes of Progressive Deformation with Applications to Jointing, Faulting and Fluid Flow
… deformation band damage zones, fracturing micro-mechanisms, and fracture-governed fluid flow. Fracture geometries, development, and mechanisms were analyzed by field- and spacecraft imagery mapping, conceptual- and numerical modeling using finite element and discrete fracture network …
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Failure of Martensitic Sharp Edges: A Micro-Mechanical Exploration for Design Guidelines
… an everyday observation, the underlying physical micro-mechanisms are poorly understood due to the structural complexity of the interacting materials, and the complex boundary conditions of their co-deformation. As a result, simplistic guidelines, such as increasing material hardness, are the only …
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In-Situ Investigations of Calcium-Magnesium-Aluminosilicates (CMAS) Infiltration Effects on Thermal Barrier Coatings Under Extreme Environments Replicating Jet Engines
… known detailed capture of complex, transient micro-mechanisms governing active CMAS infiltration processes of infiltration, interaction, and degradation in a thermal gradient simulated engine environment. The results were analyzed to reveal new knowledge, experimentally showing rapid …
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Experimental and numerical analysis of abrasive waterjet drilling of brittle materials
… brittle materials, as well as lated machining mechanisms, was studied using a hybrid experimental - numerical analysis approach. First, the machineability of ceramic materials, such as alumina, silicon nitride, silicon carbide, and titanium diboride, was studied by varying the AWJ input …