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 21 for “"In-situ observation"”.
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In situ observation of the distribution and location of gliadin as a function of mixing time in wheat flour dough using quantum dots
Gliadins are a group of cereal proteins extracted from wheat flour. Gliadins contribute to viscosity and extensibility in dough. In our study, distribution and location of gliadins as a function of mixing time in model wheat flour dough were investigated for the first time using confocal laser …
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The Development of an In-situ Mud Floc Microscope Imaging Device and In-situ Floc Observations from the Lowermost Mississippi River
… up a large fraction of sediment transported within rivers to the coasts. Predicting where mud will settle is complicated by the cohesive nature of silts and clays, which can combine to form larger aggregates known as flocs. The size and density, and consequently, the settling velocity, of flocs …
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EthnoComputation : on Weaving Grammars for architectural design
… structural, and functional aspects of weaving are parallel to the ideal Vitruvian model of an architecture that expresses an inclusive aesthetic, resonating from the logic of the design, structure and construction process. However, despite the strong historical connection between weaving …
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Extending Plant-Plant Facilitation Theory to Pollinators: Do Desert Shrubs Act as Magnets?
The magnet hypothesis proposes that flowering plants that attract pollinators can increase the relative pollination rates of neighbouring plants. The principal objective of this thesis was to 1) systematically review the theoretical and methodological trends in pollinator facilitation and magnet …
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Tissue-engineered liver microreactor as an in vitro surrogate assay for gene delivery
The lack of correlation between in vitro and in vivo gene delivery experiments presents a significant obstacle in the progress of gene therapy studies by preventing the extrapolation of successful cell culture results into animals. This phenomenon has also been documented in the specific case of …
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Observation and simulation of mid-latitude ice clouds
… schemes for atmospheric models and remote sensing retrieval schemes. In-situ observations are commonly used to obtain PSDs and other cloud microphysical properties. In particular, two-dimensional in situ images captured by cloud imaging probes are widely used to derive PSDs in term of their …
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Crystallization of Synthetic Blast Furnace Slags Pertaining to Heat Recovery
… to generate amorphous slag for its use in cement production. As both the rate and extent of heat recovery and slag structure are determined by its cooling rate, a relation between the crystallization kinetics and the cooling conditions is highly desired. In this study, CaO-SiO2-Al2O3-MgO …
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Quantifying Plasticity and Temperature in High Velocity Microparticle Impacts
The Laser Induced Particle Impact Test, or LIPIT, is a benchtop experimental setup that enables in-situ observation of micron-scale particles impacting targets at velocities ~10-1500 m/s. Through a combination of the high velocity and small length-scale of the impact, strain rates exceeding 10⁷ /s …
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Doped Titanium Oxide Photcatalysts: Preparation, Structure and Interaction With Viruses
In this study, both chemical and physical modification approaches were developed to extend the absorption band-edge of TiO2 into the visible light region with improved stability, photocatalytic efficiency and ease of the doping process. Two major approaches were used in the material synthesis and …
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Highly Efficient Thermal Ablation of Silicon and Ablation in Other Materials
Laser micromachining has become increasing prominent in various industries given its speed, lack of tool wear, and ability to create features on the order of micrometres. Inherent stochastic variations from thermal ablation along with detrimental heat effects, however, limit the feasibility of …
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Supranational organisations and cross-national policy convergence: the case of biosafety in southern Africa
This thesis analyses existing and new impetus for cross-national regulatory systems for modern biotechnology sparked in southern Africa by the 2002/03 food aid crisis. The study examined the roles the African Union (AU), the New Partnership for Africa's Development (NEPAD) and the Southern African …
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State estimation of the Labrador Sea with a coupled sea ice-ocean adjoint model
Sea ice (SI) and ocean variability in marginal polar and subpolar seas are closely coupled. SI variability in the Labrador Sea is of climatic interest because of its relationship to deep convection/mode water formation, carbon sequestration, and Northern Hemisphere atmospheric patterns. …
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Modeling process dynamics in membrane-electrolyte-assemblies of chloralkali electrolyzers considering steric and hydration effects
… been considered as one of the solution for balancing the supply-demand fluctuation in the electricity grid. This opportunity becomes a motivation to study the complex transient behaviors of the electrolyzer caused by linked multiscale phenomena. Membrane of the electrolyzer, which is a crucial …
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Development of a Low-Cost System for Monitoring Root Growth Dynamics
Understanding root system dynamics is crucial for improving plant resilience and optimising resource allocation in agriculture and forestry. Despite the importance of monitoring root dynamics, roots remain difficult to study because of their below-ground structure. Minirhizotrons – root imaging tools …
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In-situ spectroelectrochemical surface studies of fundamental fuel cell catalysis
… per molecule. Additionally, the reaction intermediate carbon monoxide was studied in-depth to better understand its spectroscopic behavior, and investigations were made into the characterization of a cobalt octaethylporphyrin complex by SFG spectroscopy. Ethanol electrooxidation as studied …
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The fundamental role of spectral scattering in the ocean colour Phytoplankton Functional Type signal
There is increasing interdisciplinary interest in phytoplankton community dynamics as the growing environmental problems of water quality (particularly eutrophication) and climate change demand attention. This has led to a pressing need for improved biophysical and causal understanding of …
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An Experimental Investigation into the Dimensional Quality of the Material Extrusion Additive Manufacturing Process
Material Extrusion Additive Manufacturing (ME AM) also known as fused deposition modelling is a popular manufacturing process. It is seen as an attractive alternative to many conventional manufacturing techniques due to its cost effectiveness, ease of adoption, and the ability to produce complex …
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Fracture in polycrystalline diamond. Investigating cracking and toughness behaviour using a miniature double torsion technique
This thesis project studied the crack initiation and controllable propagation of cracks in four grades of polycrystalline diamond (PCD) employing a miniature double torsion (DT) technique. The extremely high stiffness and relatively low toughness of the PCD material make controllable crack …
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Atomistic Insights into Alloy Solidification using Machine-Learning Potentials
Alloy solidification is a critical process in materials design and manufacturing, as it governs the formation of microstructures that determines the mechanical, thermal, and chemical properties of materials. However, direct in situ observation remains extremely challenging due the need for high …
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Hydrometeorological Variability over Pakistan
… to various hydrometeorological hazards ranging from tropical cyclones, thunderstorms, tornadoes, drought, rain, hail, snow, lightning, fog, wind, temperature extremes, air pollution, and climatic change. However, three of the most pressing challenges in terms of water resource availability, …
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