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 18 of 18 for “"rapid fabrication"”.
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Rapid fabrication methods for sheet metal dies
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1996.
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Rapid fabrication of deep-submicron Josephson junctions
… and a via layer, and is intended to be used for rapid-turnaround evaluation of simple circuits requiring only two wiring layers. Anodization was used to produce a 50 nm film of NbOx to isolate the wiring layers, replacing the time-consuming oxide deposition and planarization used in the DPARTS …
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RAPID FABRICATION OF CUSTOMIZABLE MXENE/POLYDOPAMINE (MXPDA) ELECTRODES
… microelectrode arrays (MEAs) that can be rapidly fabricated for use in surgical settings. MXenes are selected for their exceptional conductivity, flexibility, and biocompatibility-qualities essential for effective neural interfaces. The addition of PDA enhances these interfaces’ mechanical …
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Rapid fabrication of polymers and composites via frontal polymerization
… to move beyond this paradigm to achieve direct fabrication of functional, high-performance polymer and composite materials. We first envisioned using the transformation of liquid monomer to solid polymer to reinforce a flexible material. A triacrylate monomer, peroxide initiator, and thixotropic …
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Computational design of foldable robots via composition
Recent advances in rapid fabrication technologies have given designers the ability to manufacture increasingly complex geometries with little increase in cost, making it easier than ever to build a robot. However, the process of designing a functional robot remains challenging. Robots are complex …
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Characterization and optimization of photonic devices fabricated using femtosecond laser micro-matching
… It promises to be a powerful technique for rapid fabrication of photonic devices in three dimensional geometries. Our group has fabricated and investigated an array of two dimensional and novel three dimensional photonic devices that are able to perform their intended functions but whose …
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A Rapid and Power-Efficient Laser-Induced Graphene Micro-Thermocycler for DNA Polymerase Chain Reaction
… as the COVID-19 pandemic pushes for the need for rapid nucleic acid testing, and for early diagnosis compared to antigens testing. This research aims to develop a laser induced graphene (LIG) heater as the heating element for PCR point-of-care testing (POCT), as the PCR detection result is highly …
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A dielectrophoretic, microfluidic device for sorting lipid-producing organisms used as bio-oil sources
… electroplating process, allowing for extremely rapid metal deposition. At 100 [mu]A, electroplating proceeds at 3.38 0.63 [mu]m/min, creating our structures in fewer than 15 minutes. This is an order of magnitude improvement over previous related methods. We are able separate high and low lipid …
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Design and integration of a three degrees-of freedom robotic vehicle with control moment gyro for the Autonomous Multiagent Physically Interacting Spacecraft (AMPHIS) testbed
… in fabricating the prototype vehicle will enable rapid fabrication of two additional vehicles which will provide an essential hardware-in-the-loop capability for experimentation with evolving control algorithms, sensors and mating mechanisms to be used for autonomous spacecraft assembly.
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3D microfabrication of biological machines
… of two- dimensional layers. By enabling rapid fabrication of complex objects, 3D printing is revolutionizing the fields of engineering design and manufacturing. This thesis details the development of a projection-based stereolithographic 3D printing apparatus capable of high- resolution …
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Advances in hybrid water-lubricated journal bearings for use in ocean vessels
… process has been developed that enables the rapid fabrication of high precision bearings with diameter and roundness errors of less than 0.001" (25.4 microns) on a nominal diameter of 3.24" as measured with a Coordinate Measuring Machine - greatly exceeding the published tolerances of …
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Production of metal parts using the three dimensional printing process
Three Dimensional Printing is a process for the rapid fabrication of three dimensional parts directly from computer models. A solid object is created by printing a sequence of two dimensional layers. The creation of each layer involves the spreading of a thin layer of powdered material followed by …
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Holographic Point-of-Care Diagnostic Devices
… in the developing world. There is currently no rapid, low-cost and generic sensor fabrication technique capable of producing narrow-band, uniform, reversible colorimetric readouts with a high-tuneability range. This thesis aims to present a theoretical and experimental basis for the rapid …
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3D Printing of Soft and Biological Materials: Applications to Human Cochlear Modelling and Beyond
… emerged as a promising tool for on-demand and rapid fabrication of materials. The field of soft material printing typically utilises inks that exhibit viscoelastic properties with elastic moduli in the kPa – MPa range, such as hydrogels and elastomers. Although soft material printing has been …
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Streamlining the development of biophotoelectrodes: from rational design to rapid screening
… biophotoelectrodes through streamlined design, fabrication and screening processes. To achieve these objectives, biophotoelectrodes have been developed through both rational design (i.e., relying on detailed knowledge of structure-activity relationship to fabricate targeted designs) and …
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Low shrinkage metal skeletons by three dimensional printing
… Dimensional Printing (3DP) is a process for the rapid fabrication of three dimensional parts directly from computer models. A solid object is created by printing a sequence of two dimensional layers. The creation of each layer involves the spreading of a thin layer of powdered material followed …
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Materials systems for low shrinkage metal skeletons in three dimensional printing
… Dimensional Printing (3DP) is a process for the rapid fabrication of three dimensional parts directly from computer models. A solid object is created by printing a sequence of two dimensional layers. The creation of each layer involves the spreading of a thin layer of powdered material followed …
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Flexible Fabrication of Multi-scale Integrated 3D Periodic Nanostructures with Phase Mask
Top-down fabrication of artificial nanostructures, especially three-dimensional (3D) periodic nanostructures, that forms uniform and defect-free structures over large area with the advantages of high throughput and rapid processing and in a manner that can further monolithically integrate into …