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Filtering by: O'Neill, Phil Remove constraint O'Neill, Phil Committee Member Warnes, William H. Remove constraint Committee Member: Warnes, William H.

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  • New Insights into Mantle Dynamics from Helium Isotopes and Argon Geochronology

    Creator:
    Konrad, Kevin
    Abstract:
    Earth’s mantle extends to nearly 3000 km depth, comprises >80 % of Earth’s total volume, and has the largest influence on the primordial and radiogenic heat budget. Despite its importance, the structure and composition of the mantle is still debated. There are three primary models for Earth’s mantle structure that...
    Resource Type:
    Dissertation
    Full Text:
    Lava ………………………………………………………… 39 2.5.5 Xenoliths from other Harrats ……………………………….. 39 2.6 Discussion

  • Processing of laser interferometric signals for small displacement measurements

    Creator:
    Peng, Gwo-sheng
    Abstract:
    Algorithms for analyzing laser interferometry signals were developed and adopted to the computer based processing of small displacement measurements. These methods, matrix operation approach and fixed parameters approach, are based on signal phase calculation and are able to replace complex fringe counting electronic circuits. The matrix operation provides an approach...
    Resource Type:
    Dissertation
    Full Text:
    tube, fixed parameters. 119 38. CTE, composite tube, matrix operation. 120 39. PZT induced out-of-plane

  • Large-strain softening of aluminum in shear at elevated temperature

    Creator:
    Alhajeri, Saleh N.
    Abstract:
    Pure aluminum deformed in torsion (shear) at elevated temperatures reaches a broad "peak" stress and then undergoes about a 17% decrease in flow stress with deformation to roughly 1-2 equivalent uniaxial strain. Beyond this strain the flow stress is approximately constant. The sources for this softening are unclear. The suggested...
    Resource Type:
    Masters Thesis
    Full Text:
    6 a) 2w 0 AJ (99999%) = 5.8 x I O s' 274CC 340 485 0 1 210 30 50 Equivalent uniaxial strain

  • Printing 3D Magnetic Composite Structures with Arbitrary Anisotropy using UV-curable Magnetic Ink

    Creator:
    Clay, Garrett
    Abstract:
    Inkjet printing offers a cost effective, highly customizable method for rapid manufacturing of functional devices with minimal material waste. Although this method has been used for a variety of composites, little work has been done in the area of 3D printing magnetic composites. Presented here is a process for inkjet...
    Resource Type:
    Masters Thesis
    Full Text:
    : Pallavi Dhagat Inkjet printing o↵ers a cost e↵ective, highly customizable method for rapid manufacturing

  • Graphite intercalation with fluoroanions by chemical and electrochemical methods

    Creator:
    Özmen Monkul, Bahar
    Abstract:
    New acceptor-type graphite intercalation compounds (GICs) containing perfluoroalkyl anions have been synthesized by using both chemical and electrochemical methods and characterized by elemental and thermogravimetric analyses. Investigation into these graphite intercalation compounds can provide novel materials and a detailed understanding of their properties. GICs of composition Cx[FB(C₂F₅)₃]·δF are prepared for...
    Resource Type:
    Dissertation
    Full Text:
    in law, H. Suna Monkul and father in law, O. Rifat Monkul were always there for me providing their

  • Development and characterization of novel hydrogels for nucleus pulposus replacement

    Creator:
    Bader, Rebecca A.
    Abstract:
    Hydrogels have been proposed as candidates for nucleus pulposus replacement due to their similarity in mechanical behavior to the native tissue when subjected to transient or static loading; however, given the viscoelastic nature of soft biological tissues, the lack of dynamic testing is a significant inadequacy in the studies performed...
    Resource Type:
    Dissertation
    Full Text:
    )...................................................................................................... 39 Hydrogel Preparation from 1,2-Epoxy-5-hexene Modified Poly(vinyl alcohol) (1,2-Epoxy-5

  • New Architectures and Circuits for Pushing the Dynamic Range and Multiplexing Boundaries of CMOS-Integrated Sensors

    Creator:
    Ouh, Hyunkyu
    Abstract:
    Over the last decades, CMOS-integrated sensors have made impressive progress in performance, form-factor, and energy-efficiency for various applications such as imaging, physical/chemical sensing, bio/health monitoring. In the era of the artificial intelligence (AI) and the internet-of-things (IoT), such CMOS-integrated sensors are essential for massive and comprehensive data acquisition, where sensing...
    Resource Type:
    Dissertation
    Full Text:
    . . . . . . . . . . . . . . . . . . . . . 38 3.5.3 Sensor Array Characterization . . . . . . . . . . . . . . . . . . 39 3.5.3.1 Measured

  • Effect of Imprinting Process on Fracture Behavior of a Zr-based Bulk Metallic Glass

    Creator:
    Li, Bosong
    Abstract:
    Bulk metallic glasses (BMGs) are relatively new amorphous materials that have received much attention in recent years. Rapid cooling methods from the liquid state provides the possibility to bypass crystallization during solidification. Due to the lack of crystal defects such as grain boundaries and dislocations, BMGs can have some special...
    Resource Type:
    Masters Thesis
    Full Text:
    . ..................................................................................................... 39 Figure 17. (a) Dimple pattern of an imprinted sample in Region IV (KJ = 110 MPa√m). (b) Dimple