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 20 for “"2d Surface"”.
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Emergent behavior of cells on microfabricated soft polymeric substrates
… and quantification of a novel 1D/2D like polymeric platform for cell culture is presented in the second part. The platform consists of a 2D surface anchoring a long (few millimeters) narrow filament (1D) with a single cell scale (micro scale) cross section. We plate C2C12 cells on …
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Effect of cutting tool microgeometry when milling hardened steels, a finite element simulation and surface integrity analysis
… of cutting inserts on the cutting forces and the surface integrity. Two levels of feed rate, three levels of cutting speeds, and five levels of edge radii were utilized. The impact of edge radii on the workpiece surface integrity was analyzed in terms of 2D surface roughness, generated feed marks, …
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Full-wave analysis of large conductor systems over substrate
… techniques for both their 3D volume and 2D surface integrations, where each integration type can be reduced to a sum of D line integrals. In addition, a set of high-order, frequency-independent basis functions is developed with the ability to parameterize the frequency-dependent nature of …
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Perceiving Shape from Surface Contours via Artificial Neural Networks
… of teaching a machine how to perceive shape from surface contour markings. Such markings are commonly used in clothing, data visualizations, and other man-made constructs, because humans have an apparently natural ability to interpret them. By glancing at a simple collection of curves drawn upon a …
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Optimization of cell adhesion environments for a liver cell bioreactor
… culture prior to seeding in the bioreactor and 2D surface culture methods that could be applied to the bioreactor scaffold. Spheroids were formed either by culturing in spinning suspension or on a static, non-adherent surface. In spheroid culture, the addition of extracellular matrix (ECM) …
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Interactive rendering techniques for focus+context visualization of 3D geovirtual environments
… environments facilitates the rendering of 2D surface lenses. It enables a flexible combination of different raster layers (e.g., aerial images or videos) using projective texturing for decoupling image and geometry data. Thus, various overlapping and nested 2D surface lenses of different …
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Quantum electronic transport in atomically layered topological insulators
… of the system - that is, the ID edge of a 2D topological insulator or the 2D surface of a 3D topological insulator. These helical modes represent the extreme limit of spin-orbit coupling in that the spin-degenercy has been completely lifted while preserving time-reversal symmetry. This …
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Nanoscale Manipulation of Pristine and Functionalized Freestanding Graphene Using Scanning Tunneling Microscopy
<p>Over the past ten years the 2D material graphene has attracted an enourmous amount of attention from researchers from across diciplines and all over the world. Many of its outstanding electronic properties are present only when it is not interacting with a substrate but is instead freestanding. …
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Topological Transport in Sb Quantum Wells
… observations of topological insulators in 2D and 3D systems. Sb as a topological insulator is introduced in relation to the the first 3D topological insulator observed in Bi-Sb alloys. Due to the large conduction in bulk Sb, quantum confined Sb wells are grown by molecular beam epitaxy …
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A computational approach to higher categories
… in up to four dimensions as string diagrams (in 2D), surface diagrams (in 3D), or smooth animations of surface diagrams (in 4D). The main contribution of this thesis is the development of two key components of the proof assistant, as well as the novel categorical concepts that underpin them. …
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A study of bioprocess designs for development of the myogenic secretome as a source of bioactive extracellular vesicles
… yields increased 2-fold on 75cm2 and 175cm2 surface areas compared to 25cm2 surface areas. The myogenic secretome yield on poly (lactic-co-glycolic) acid microcarriers was 3-fold greater than that produced on a 2D surface. The yield of EVs from 175cm2 and 75cm2 surface areas following SEC …
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Exploration of multiple pathways for the development of immersive virtual reality environments
… widely differing areas - visualizing arbitrary 2D surface data, synthesis of particle aggregate models from computed tomography and simulation of NASA rocket engine test stands.</p> <p>The objectives of this thesis were obtained by an examination of the current algorithms and software in use for …
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A study of fast, robust stereo-matching algorithms
… window to locally deform according to the surface orientation of the imaged point. The algorithm then performs correlation in multiple dimensions to simultaneously determine the most probable depth and tilt. The 2D surface orientation search may be made more efficient and robust by …
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Reconstructing 3D ocean temperature fields from real-time satellite and buoy surface measurements
… set of sensor measurements only available at the surface of the ocean. We first apply standard principal component analysis (PCA) at every ocean surface coordinate to a numerical simulation of a 3D temperature field (reanalysis data) over time. For each horizontal location, the vertical structure …
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Fluid atmospheres : adaptive interplay between natural and artificial light projection
… - its animus is time. Take a closer look at the surfaces that enclose our space: there are screens with news, lectures, movie clips; there are windows, shadows and shade created by lights of all different kinds; there are colors and ornamentations that inform us of the history of our …
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Development of Continuous Two-Dimensional Thermal Field-Flow Fractionation for Polymers : Academic Dissertation
… thermal field-flow fractionation (2D-ThFFF) technique for the separation and collection of macromolecules and particles. The separation occur in a thin disk-shaped channel, where a carrier liquid flows radially from the center towards the perimeter of the channel, and a steady …
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Modelling surface evolution coupled with tectonics
This study presents the development of 1D and 2D Surface Evolution Codes (SECs) and their coupling to any lithospheric-scale (thermo-)mechanical code with a quadrilateral structured surface mesh. Both SECs involve diffusion as approach for hillslope processes and the stream power law to reflect …
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Thermohydraulics and suppression of nucleate boiling in upward two-phase annular flow : probing multiscale physics by innovative diagnostics
… of conditions, the local distributions of the 2D surface temperature, 2D heat flux, and quasi-2D liquid film thickness were measured. From the measured data, the SNB heat flux, the SNB wall superheat, and the hydrodynamic properties of the disturbance waves were extracted. The experimental …
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An <i>in vitro</i> human 3D co-culture model to study endothelial-astrocyte interactions
… are cultured on a stiff, two-dimensional (2D) surface. Three-dimensional (3D) culture models closely mimic the in lJZVO cellular architecture and they bridge the gap between 2D culture models and animal models. <br></br><br></br>Hence, an <i>in vitro</i> 3D eo-culture model was developed …
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Investigating the structure and physical properties of nucleic acids in nanoscale confinement
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-12-01