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 14 of 14 for “"flexible circuit"”.
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A Flexible Circuit-Switched Communication Network for FPGA-Based SOC Design
… developed. This infrastructure is based on a circuit-switched network architecture. The circuit-switching aspect allows two nodes, or modules, to temporarily establish a direct and dedicated connection for high-throughput data transfer. The network-based topology allows this to occur without …
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Activation of conductive pathways via deformation-induced instabilities
… buckling responses of the structure. Finally, a flexible circuit that can be switched on and off by an applied uniaxial load is fabricated based on the finite element analysis and demonstrated the ability to activate conductive pathways in response to an external triggering stimulus.
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Microprocessor energy characterization and optimization through fast, accurate, and flexible simulation
… describes the design of a fast, accurate, and flexible circuit simulation tool which enables transition-sensitive studies of microprocessor energy consumption that would otherwise be impossible or impractical. With a simulation infrastructure in place, various optimizations are implemented that …
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Augmented material interfaces : exploring bidirectional microinteractions enabled by radical elements
… composite uniMorph. It is based on a flexible circuit composite that is able to actuate its own shape by combining the thermo- electric characteristics of copper with the high thermal expansion rate of ultra-high molecular weight polyethylene. Finally, a taxonomy for augmented …
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Multiple Electrode Recording of Cardiac Activation.
… heart during open heart surgery. It consists of flexible circuit materials and represents and improved version of a multiple electrode array already in use for the purpose of recording the activity of multiple epicardial sites simultaneously. Conventional epicardial mapping techniques utilize a …
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Design and Analyses of a Dimple Array Interconnect Technique for Power Electronics Packaging
This research developed a novel, non-wire bond semiconductor interconnect technology, termed the Dimple Array interconnect (DAI), with significantly improved electrical, thermal and mechanical characteristics for power electronics applications. In the DAI structure, electrical connections onto the …
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Development and validation of a gastroenterology probe capable of measuring the position of the squamo-columnar junction
… Using Hall effect sensors on a custom flexible circuit board, and a magnet attached to the squamo-columnar junction, a device was produced which when inserted into the oesophagus, measured the relative position of the squamocolumnar junction to manometry and pH-metry catheters. The …
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Micron-scale flexible electronics for detection of reactive oxygen species for in vivo applications
The design, fabrication and modification of a flexible sensor for the detection OF superoxide for investigations within a Mongolian gerbil’s cochlea were optimized. Electron beam deposition was used to deposit a thin film of titanium followed by a layer of gold on a Kapton™ surface. Prior to …
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Neural Circuit Mechanisms Underlying Behavioral Evolution in Drosophila
… mechanisms and diversification of central circuitry and suggest how evolution can exploit flexible circuit nodes to generate behavioral variation. To investigate if changes in the balance of excitation and inhibition at this node evolved repeatedly, we began characterizing the pheromone …
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Wrinkling of Membrane and Thin Film under Torsion
… in space missions, biological membranes and flexible circuit boards. Wrinkling of membrane or a stiff film on a soft substrate may occur in either desired or unwanted patterns. This work tries to obtain some understanding on the wrinkling phenomenon and provide guidance in avoiding wrinkling …
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Design and optimization of dielectric resonator antenna arrays based on substrate integrated waveguide technology for millimeter-wave applications
… to the research community. Antennas and MMW circuits with compact size, low cost, high efficiency, and low loss are much needed to meet the new requirements of these applications. This research focuses on the design and optimization of dielectric resonator antenna (DRA) arrays based on …
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Power management circuits for ultra-low power systems
Power management circuits perform a wide range of vital tasks for electronic systems including DC-DC conversion, energy harvesting, battery charging and protection as well as dynamic voltage scaling. The impact of the efficiency of the power management circuits is highly profound for ultra-low …
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MEMS Technologies for Energy Harvesting and Sensing
… low viscosity epoxy enabled the joining of the flexible circuit to the magnetoelectric fibers. Lastly, we developed a nondimensional tunable Piezo harvester, called PiezoCap, which decouples the energy harvesting component of the device from the resonant vibration component. We do so by using …
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Modeling, Implementation, and Simulation of Two-Winding Plate Inductor
… low profile and their compatibility with printed-circuit boards (PCB). The coupled inductors with winding layers sandwiched between two core plates are studied in this dissertation in order to model the self-inductance, winding loss, and core loss. The most challenging task for the plate-core …