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 31 for “"surface-response"”.
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The surface response of metallic superlattices
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-11 without embargo terms
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Surface response of ceramics subject to erosive wear.
Research concerning the surface of technical ceramics is carried out from the viewpoint of their mechanical performance subjected to relevant operating conditions. The selected materials are silicon nitride, zirconia and alumina. They are subjected to cavitation erosion and other wear processes. …
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Land surface response to climate change forcing over Southern Africa
The land surface is important to the climate system for the exchanges of moisture, momentum and heat. Momentum, radiation, and sensible and latent heat fluxes between the atmosphere and the surface will likely affect atmospheric dynamics, temperature, precipitation and humidity fields (Sato et ai., …
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Characterization of Liquid Metal Free Surface Response to an Electromagnetic Impulse and Implications for Future Nuclear Fusion Devices
… The work presented here first characterizes the response of LMs to current pulses which peak between 50 and 200 kA and generate magnetic pressures between 0.5 and 5 MPa. High-speed videography records the liquid metal free surface during and after the current pulse and captures a fast moving, …
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Transient wave propagation on random fields with fractal and Hurst effects
… In this study, we evaluate cellular automata's response to a normal, impulse line load on a half-space. We first evaluate the surface response for homogeneous material properties by comparing cellular automata to the theoretical, analytical solution from classical elasticity and experimental …
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Numerical simulations of site response and seismic settlements at Kashiwazaki-Kariwa Nuclear Power Plant, Japan
… of multi-directional shear and volumetric response of Service Hall free-field site and Arahama Site on which the reactor and turbine buildings, as well as the transformer house are located using a newly developed soil-constitutive model in LS-DYNA. The Service Hall site consists of …
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The study of organic crystals by atomic force microscopy
… of organic crystals, the study of their surfaces is crucial, as several reactions occur at the interface between the crystal surface and its immediate environment. While atomic force microscopy (AFM) is a useful tool for studying surfaces, it is not a common technique for studying organic …
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Simulating organization of convective cloud fields and interactions with the surface
… of the boundary layer is forced by the amount of surface fluxes from below. Conversely, landscape patterns and land-cover heterogeneity may equally give rise to focused regions for deep convection triggering, in particular when patch sizes exceed 10 km. Since the convective boundary layer has a …
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Probabilistic Site Response Analysis and Soil-Structure Interaction: A Data Science and Statistical Investigation Utilizing a Comprehensive Dataset in Japan and the US
Site response analysis (SRA) plays a crucial role in the performance-based design ofstructures subjected to earthquakes. It allows for the prediction of ground motion and the subsequent effects on structures. While the accuracy of current SRA methodologies has been the focus of much research, there …
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Optimization of Lead Spectinamide Compounds as Novel Anti-tuberculosis Agents with a Pharmacometric Approach
… likely distributed into the epidermis and other surface tissue. In multiple-dose accumulation studies, the Cmax of radiolabeled compound after the 1st dose and the 8th dose of twice-daily dosing regimen was similar: 3.39µCi/mL and 3.55µCi/mL, suggesting no relevant accumulation of parent drug and …
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Response to stratospheric forcing and its dependence on the state of the troposphere
… in the stratosphere can have an impact on the surface. While observational results show a surface response of about 0.5 - 1 m/s, modeling studies can show a signal two times and in a particular extreme, four to eight times larger. In this thesis, an investigation of this extreme result revealed …
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Variability of the polar stratospheric vortex and its impact on surface climate patterns
… its subsequent influences on southern hemisphere surface climate patterns is investigated. It is verified that stratospheric final warming events have an impact on tropospheric circulation in a simplified GCM with seasonal variations in the stratosphere only. The model produces qualitatively …
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Abrasive wear resistance of ruthenium aluminide intermetallic and ferritic steels containing a sigma intermetallic phase
… out on a pin on belt abrasion apparatus. The surface response of the specimens to abrasive wear was characterised by optical and scanning electron microscopy. Microhardness of the specimens were measured with a digital microhardness machine. The wear resistance of ruthenium aluminide was found …
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Climate system response to perturbations : role of ocean and sea ice
… consider the role of the ocean in the climate's response to changes in external forcing, such as volcanic eruptions, Snowball Earth initiation and rearrangements of the carbon cycle. The first part of this thesis isolates the impact of the deep ocean in the surface response to volcanic cooling. …
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Development of standardized dry roasting procedures for Virginia type peanuts
… one normal and other a high oleic variety. A surface response model using the Box-Behnken design was developed for Behmor 2000AB and GeneCafe coffee roasters, for normal and high oleic peanuts respectively with sample size, roast time and power/temperature as dependent variables and L* as a …
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Numerical Simulation of Surface Effect Ship Air Cushion and Free Surface Interaction
… the computational fluid dynamics simulations of surface effect ship model tests. The model tests being simulated are of a generic T-Craft model running in calm seas through a range of Froude numbers and in two head seas cases with regular waves. Simulations were created using CD-adapco's …
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Implications of Shallow Water in Numerical Simulations of a Surface Effect Ship
… of a SES model (T-Craft) tested at the Naval Surface Warfare Center Carderock Division. The craft is simulated with two degrees of freedom, allowing movement in heave and pitch in response to displacement of the free surface. Agreement between the single and overset grid techniques was deemed …
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Novel Fluorous Hybrid Surface Modification Characterized by Wetting Dynamics, Morphology and Nanomechanics
<p>The surface response of a polymer substrate to external stimuli such as initial wetting is controlled by the outermost molecular layer. Thus, changes on the nanoscale may be engaged to control macroscale wetting behavior. Our work has predominantly focused on surface modification of conventional …
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FSI Methodology for Analyzing VIV on Subsea Pipeline Free Spans with Practical Boundary Conditions
… pipeline. To adequately simulate the free span’s response to VIV, three-dimensional fluid-structure interaction (FSI) simulations are performed by coupling the computational fluid dynamics (CFD) codes from STAR-CCM+ with the finite element (FE) codes from ABAQUS. These FSI simulations in …
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