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- 1Ali, Mehnab
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A Fully 3D Printed Waveguide and its Application as Microfluidically Controlled Waveguide Switch
DownloadFall 2016
Hollow rectangular waveguides are employed extensively in microwave and millimeter wave devices owing to their relatively high power handling capabilities and low losses, particularly at higher frequencies, compared to transmission lines. However, the fabrication of such metal waveguides suffer...
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Additive Manufacturing of Shape Memory Polymers: Effects of Print Orientation and Infill Percentage on Mechanical and Shape Memory Recovery Properties
DownloadFall 2017
Material Extrusion Additive Manufacturing (MEAM), also known as Fused Deposition Modeling (FDM), is a manufacturing technique in which three-dimensional objects are built. These objects are built by repeatedly extruding thin layers of molten materials through a nozzle in different paths and...
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Fall 2016
Tubular braided composites consist of woven fibers imbedded in a resin matrix. Braided composites are manufactured using a device known as a Maypole braider. Braiding machines can be configured to produce several braiding patterns including: Diamond (1/1), Regular (2/2), Hercules (3/3) and...
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Spring 2018
Shape memory polymers (SMPs) can be used in many critical applications, including biomedical and aerospace fields, due to their ability to recover their original/permanent shape from a deformed/temporary shape upon application of a stimulus. SMPs are subjected to bending in a large number of...
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Design and system identification for a plasma transferred arc additive manufacturing technology
DownloadFall 2021
The increase in the pace of development of additive manufacturing technology opens new markets and expands the scope of research and knowledge. Additive manufacturing, previously known as rapid prototyping, can employ advanced state-of-the-art materials, such as metal composites, in metal 3D...
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Development and characterization of magnetic particle reinforced polymers for additive manufacturing processes
DownloadFall 2020
Additive manufacturing enables the production of complex parts with less tooling and minimum material wastage. Polymer composites with magnetic functionality are promising for many applications like sensors, non-contact actuators and permanent magnets for electromechanical devices. The primary...
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Development, Validation, and Application of a 3D print out of the Nasopharyngeal area from Cone Beam Computed Tomography in Children
DownloadFall 2019
Cone Beam Computed Tomography (CBCT) is increasingly being used in dentistry to explore certain types of craniofacial abnormalities. Sleep-disordered breathing represents a significant burden to individuals and society. Hence, the opportunistic use of CBCT imaging among dentists to screen for...
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Fall 2020
Biosensors are a large market that is quickly gaining traction and is a large industry that is projected to continue its rapid growth. One of the main challenges with biosensors are developing reliable, high sensitivity, repeatable sensors economically and rapidly. In this work, I have used 3D...
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Geometric Tolerance Quantification and Prediction Framework for Additive Manufacturing Processes
DownloadFall 2021
Additive Manufacturing (AM) is an advanced manufacturing technology used to manufacture custom and geometrically complex parts using a layer-by-layer material addition process. Variations in the AM process lead to ‘deviations’ in the manufactured part, resulting in geometric non-conformance. To...
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Improving 3D Printability and Functional Performance of Polyethylene across Visible and IR Spectrums through IR Transparent Pigmentation and Polyolefin Additives
DownloadFall 2023
Polyolefin thermoplastics form a significant fraction of the world scale production of plastics and are of high interest due to their toughness, low cost, good chemical resistance and excellent IR properties. Two grades of PE: Linear Low-Density Polyethylene (LLDPE) and High-Density Polyethylene...