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 15 of 15 for “"crumpled"”.
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Crumpled Graphene Oxide: Aerosol Synthesis and Environmental Applications
… to engineer the 2D GO nanosheets into 3D crumpled balls (crumpled GO, CGO), which have excellent aggregation- and compression-resistant properties, while allowing for the incorporation (encapsulation) of other (multi)functional particles inside. The five focus areas of this dissertation …
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Strechable crumpled graphene photodetector with plasmonically-enhanced photoresponsivity
… stretchability. Here, we demonstrate a crumpled graphene-gold nanoparticles (AuNPs) hybrid structure photodetector with ~1200% enhanced photoresponsivity compared to conventional graphene photodetector and exceptional mechanical stretchability up to 200% tensile strain. We achieved the …
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Characteristic Mode Analysis of Crumpled Graphene Flakes and A New Green’s Functions Evaluation Method for Layered Media
… perfectly flat, and often exhibit complicated crumpled shapes. Therefore, the goal of this work was to quantify the electromagnetic scattering characteristics of individual crumpled GFs with shapes resembling those found in real composites. The extinction cross sections of tens of GFs, with …
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Mechanical self-assembly of deformed 2D materials for advanced functionalities
… of prestrains to create uniaxially or biaxially crumpled 2D materials with a uniaxial prestrain or biaxial prestrains, respectively. The resulting structure is a mechanically self-assembled, buckle-delaminated structure with delocalized crumples and inhomogeneous strain in the crumpled 2D …
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An aquatic and racquet center for the Federal City
… are made of Light which has been spent, and this crumpled mass called material casts a shadow, and the shadow belongs to Light. Louis I. Kahn¹ I like complexity and contradiction in architecture. I do not like the incoherence or arbitrariness of incompetent architecture nor the precious …
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The Effect of Product Characteristics on Recycling
… of both size and condition of paper (i.e., crumpled or smooth) on recycling. Participants ( N = 60) were told this was a study about memory. They were instructed to complete a set of sorting tasks twice (for a total of two trials) with four different pieces of paper (standard-size smooth, …
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Fabrication and integration of graphene field effect transistors for advanced biosensing platforms
… a novel methodology to detect biomolecules using crumpled graphene-based FET. Crumpling approach is compatible with low cost, low power, and scalable fabrication processes and has enhanced sensitivity conferred by its outstanding features such as large surface area to volume ratio, high carrier …
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A detailed study on controlled synthesis and device integration of monolithic graphene-graphite structures
… This thesis also explores the fabrication of crumpled three-dimensional (3D) graphene structure through thermally-activated shrinkage of the base substrate, which can be exploited as 3D biological sensor mechanism. A detailed analysis on synthesis and characterization of monolithic …
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Deformable Object Manipulation with a Tactile Reactive Gripper
… representation. Supports correspondence across crumpled and symmetric garments in air and on a table. • Chapter 6: Behavior Architecture and Planning Interfaces. Integration of perception modules into a reactive, confidence-based folding system and an exploration of how dense descriptors can …
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The effects of periodic environmental enrichment at different life stages on the welfare and production of growing pigs
… enrichment used in the current study was loosely crumpled newsprint with an added functional neurosensory liquid solution (Phytozen®). Upon moving to grow-finish (GF) for the remainder of the trial (Late life: 10-21 weeks of age), half of the pigs changed environments while half remained in the …
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Flexural Mechanics of Creased Thin Metallic Strips
… This can be observed by manipulating a crumpled piece of paper which has been unfolded; it no longer deforms in the same way as the original sheet. Creases have typically been modelled as singular hinge lines, often accompanied by a torsional spring to provide some opening resistance; …
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Deep Learning Based Salient Object Detection for the Detection of Stains and Holes on Patterned Laundry
… in this field to date because laundry is crumpled during and after washing so that it is impossible to capture images where defects are visible. However, there are research efforts, such as the Flachwaschen Project, that look at washing laundry flat and thus allow its automatic inspection. …
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Mechanics driven architectures for flexible nanomaterial-based sensors
… showcased by the fabrication of a stretchable, crumpled graphene strain sensor and patterned graphene condensation channels for potential applications in sensing and heat transfer, respectively. This post-synthesis manufacturing scheme promotes rapid, facile fabrication of cleaner graphene …
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Strain responsive systems based on deformed low dimensional materials for sensing and actuation
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2022-12-01