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 137 for “"Meso-Scale"”.
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Compliant Meso-Scale Grinding of Silicon
To further improve form accuracy obtained on the compliant grinding apparatus, a normal grinding force model and a depth of cut model were developed to account for the large compliance in the grinding system. Numerical simulation was performed to predict actual depths of cut and the results were …
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Flow Boiling in Meso-Scale Pin-Fin Coldplates
… the research on flow boiling in mini- and macro-scale configurations has been limited to channels and tubes, overlooking crucial geometries such as pin-fin-enhanced mini-channels. This literature gap, particularly the study of flow boiling in pin-fin-enhanced channels in the meso-scale, has …
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Meso-scale fluidic devices with chemical sensors for biological applications
… and LED panel as an excitation source. Meso-scale fluidic devices with integrated oxygen and humidity sensors for potential applications to hydrotropic and oxytropic studies of small plant roots have been investigated in this study. Meso-scale sensor platform was fabricated using …
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Thermomechanical Meso-Scale Modeling of Combustion of Heterogeneous Solid Propellants
In the final part of this dissertation, the coupled thermomechanical and propellant surface regression solver is further enhanced through addition of fluid-phase equations for transport of chemical species and temperature. A simple three-step kinetics model is used to describe the complex reactions …
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Low-frequency vibrational energy harvesting at the micro and meso scale
… which has never been achieved by a micro-scale device. Due to the poor fabricated quality of the active piezoelectric material in the device, however, the generated power has been an order of magnitude less than expected. It is important to harvest more than 1 micro Watt at the device size …
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Experimental study of UHPC with high fire resistance and meso-scale modelling
… reinforced concrete (SFRC) (including UHPC), a meso-scale model for heat analysis was developed. Delaunay triangulation was employed to generate the unstructured mesh for SFRC materials. The model was validated using existing experimental data. Then, it was used to study how model thickness …
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The design and fabrication of a meso scale minimally invasive surgical robot
Minimally invasive robotic Single Port Laparoscopic Surgery (SPLS) is of high importance, due to its ability to reduce operation times, recovery times, postoperative infection rates and improve cosmesis while providing surgeons with greater dexterity and precision than traditional SPLS techniques. …
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Design of a high-speed, meso-scale nanopositioners driven by electromagnetic actuators
… is required to engineer high-speed, six-axis, meso-scale nanopositioners that are driven by electromagnetic actuators. When compared to macro-scale nanopositioners, meso-scale nanopositioners enable a combination of greater bandwidth, improved thermal stability, portability, and capacity for …
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Fabrication and redesign of a meso-scale six-axis nano-positioner system
… Systems lab to design a system of 10 six-axis meso-scale nano-positioners. They devised a system that could revolutionize the nano-scale industry, by making massive parallel positioning at the nanometer/micro-radian possible at a low cost. In order to test the design, the alpha prototype was …
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Design of a novel six-axis metrology system for meso-scale nanopositioners
… and are difficult to incorporate into meso-scale machines. The novel approach presented here uses three pairs of laser diodes and quadrant photodiodes to achieve six axis measurements. This paper presents a general parametric model that can predict the output of the photodiodes due to …
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Measurement and modelling of water and sediment fluxes in meso-scale dryland catchments
… water and sediment fluxes at the river basin scale is of vital importance to support management decisions and policy making. This subject was addressed by the DFG-funded SESAM-project (Sediment Export from large Semi-Arid catchments: Measurements and Modelling). As a part of this project, this …
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Development of meso-scale flexible cutting tool for micro-groove cutting in steel
… etc. have shown capability in producing micro-scale grooves in a range of materials. However, they were found to have limitations in producing grooves in hard materials that are less than a few microns wide and a few microns deep, several millimeters long, and that have arbitrary …
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Micro-to-meso scale high temperature response of ablative systems for atmospheric reentry
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-03-28 without embargo terms
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Meso-scale FDM material layout design strategies under manufacturability constraints and fracture conditions
… designing these element layouts for 2-D and 3-D meso-scale mechanical problems, focusing ultimately on design-for-fracture. Three different fracture conditions are explored: (1) cases where a crack must be prevented or stopped, (2) cases where the crack must be encouraged or accelerated, and (3) …
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Modeling and simulation of multi-component condensed phase combustion at the meso-scale
… to condensed phase combustion at the meso-scale. The meso-scale is defined to be on tens nano-meters to hundreds microns where physically distinct features, including crystal grains, defects, interfaces, etc., are found in the scale. The modeling framework includes i) a continuum …
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Exploring Sediment Compaction in Experimental Deltas: Towards a Meso-Scale Understanding of Coastal Subsidence Patterns
… compaction and consolidation in two laboratory scale river delta experiments. Compactional subsidence rates have never been thoroughly quantified in the experimental setting, though this mechanism is found to be a primary creator of total relative sea level rise which will likely cause …
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Characterization of the nano- and meso-scale hierarchic assembly in biomimetic membranes and living systems
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2026-12-01
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Design and fabrication of meso-scale flexural testing apparatus for evaluating aligned CNT composite flexures
The objective of this research is to explore the possibility of using aligned Carbon Nanotube (CNT) based composites in flexures by measuring the kinematics of a composite flexure. The first phase of the research, described in this thesis, is to design, fabricate and assemble a testing apparatus …
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The MEso-SCAle Particle Transport model (MESCAPT) for studying sediment dynamics during storms and tsunamis
… study, we aim to tackle the problem with the MEso-SCAle Particle Transport model (MESCAPT) that combines the advantages of concentration-based Eulerian methods and particle-based method. The advantage of the former is efficiency and the latter is detailed sediment transport and deposit …
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