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 20 of 32 for “"EPD"”.
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Investigation of electrophoretic deposition as a fabrication technique for high performance composites
Electrophoretic deposition (EPD) is a colloidal processing method for the deposition of materials from charged nanoparticles suspended in solution with the application of an external electric field. It is an increasingly popular manufacturing method for engineered materials because of its low cost, …
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Comparison of expected and actual progeny growth differences in crossbred calves
… compared to the expected progeny differences (EPD) estimated by the American Polled Hereford Association to evaluate the usefulness of EPD estimates for improving commercial beef production. Polled Hereford sires were selected from the high accuracy sires listed in the American Polled Hereford …
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Evaluation of Osseointegration Between Two Different Modalities of Hydroxyapatite Implant Surface Coatings: Plasma Sprayed HA Coated Implants and Electrophoresis Deposited Nano HA Coated Implants
… coated implants and electrophoresis deposited (EPD) nano hydroxyapatite coated implants in an animal model. The quantity of osseointegration was inferred by interfacial strength and percent tissue-contact length.Materials and Methods: Thirty-six cylindrical implants (18 PS and 18 EPD) were …
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Optimisation of Collagen Films Produced via Pulsed Current Electrophoretic Deposition
Electrophoretic deposition (EPD) has been used for the deposition of insoluble collagen type I in aqueous suspensions. In this process, two electrodes are immersed in an aqueous collagen suspension and a voltage is applied. The charged particles in the suspension move towards the oppositely-charged …
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Electric field based fabrication methods for multi-scale structured surfaces
… this dissertation, electrophoretic deposition (EPD) and breakdown anodization (BDA) are examined for their potential to produce multi-scale structured surfaces. EPD uses electrophoresis to deposit thin films of nanoparticles, dispersed in suspension, onto charged or porous substrates. Depending …
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A Study on the Use of Inverse Opals Composed of Zinc Oxide Aggregate Popcorn Particles to Improve the Efficiency of Dye- Sensitized Solar Cells
… Subsequently, electrophoretic deposition (EPD) is used to assemble the popcorn particles into an inverse opal structure. This is a unique application of EPD, which has previously been used to infiltrate nanoparticles (d ≤20nm range) Into opal templates, demonstrating the applicability of …
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Solid oxide fuel cell electrolytes produced via very low pressure suspension plasma spray and electrophoretic deposition
… Laboratory and electrophoretic deposition (EPD) at Purdue University.^ Plasma spray was carried out in a chamber held at 320 - 1300 Pa, with the plasma composed of argon, hydrogen, and helium. EPD was characterized utilizing constant current deposition at 10 mm electrode separation, with …
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Fabrication and optimization of light emitting devices with core-shell quantum dots
… part studies the electrophoretic deposition (EPD) of CdSe/ZnS QDs. QD-LEDs conventionally utilize a QD lm that is deposited via spin-casting, a reliable but highly unscalable technique for the deposition of thin, smooth films of QDs for QD-LED applications. Potential advantages of EPD include …
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Characterizing high-energy electrons in space using science imagers
… coming from the Energetic Particle Detector (EPD) on the Galileo spacecraft. In this thesis, we develop ways to use existing hardware on spacecraft to measure the energetic particle environment. Solid-state detectors are commonly used as scientific imagers on spacecraft. In addition to being …
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Functional Nanocomposites Formed by Two-step Back-filling Methods
… properties of electrophoreticially deposited (EPD) cadmium selendide (CdSe) nanocrystal (NC) films through post-deposition addition of organic ligand molecules and polymeric precursor molecules (monomers). Specifically we show that when these organic compounds are added (i.e. back-filled) into …
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Ge photodetectors for Si microphotonics
… electron microscopy and etch-pit-density (EPD) counting, were reduced by cyclic thermal annealing. Additionally, Ge mesas with no threading dislocations as measured by EPD were also demonstrated. The removal of threading-dislocations can be attributed to the thermal stress induced …
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Compatibilisation of heterogeneous polymer blends by reactive processing
… terpolymer, EPDM, with acrylic acid, AA, in a melt reactive processing procedure, in the presence of peroxide, trigonox 101, and coagents, Divinyl benzene, DVB (for PS), and trimethylolpropane triacrylate, TRIS (for EPDM), were successfully carried out. The …
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The Roles of Resilience and Perceived Discrimination in Sexual Minority Identity Integration
… and frequency of perceived discrimination (EPD and FPD), and LGB identity status. Hierarchical regression results indicated that while resilience does not moderate EPD and FPD in predicting degree of outness, along with FPD it does independently predict outness. Additionally, post hoc …
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Production of Dermal Inspired Collagen Architectures by Lyophilisation and Electrophoretic Deposition
… direct current electrophoretic deposition (DC-EPD) was investigated as a method to produce collagen membranes. DC-EPD was applied to suspended collagen scaffolds to produce well-adhered, continuous, and defect-free scaffold-film bilayers. Carbodiimide crosslinking of scaffolds to 10% of the …
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Production of Multi-layer and Cell-Containing Collagen Membranes Using Direct Electrophoretic Deposition
… be produced using electrophoretic deposition (EPD). A voltage is applied to an aqueous suspension between two electrodes, causing movement of charged particles to form a dense membrane in a variety of shapes and sizes. The films need to be removed easily from their electrode and their strength …
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Controlled Surface Layer Deposition for Steel Surface Hardening
Electrophoretic deposition (EPD) of Ti on low carbon steel followed by heat treatment, which was done at 600-1400 degree celsius for 1 h or 9 h under Ar (sintering) and 5% H2-N2 (nitridation), were used for surface hardening. The coarse Ti particles (≤50 μm) were suspended in ethanol using the …
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Production of Compositional Analogues of Bone Based on Electrophoretically Deposited Mineralised Collagen Films
… suspensions. Electrophoretic deposition (EPD) was successfully used to produce defect-free, free-standing mineralised collagen films of at least 20 µm in thickness from mineralised collagen suspensions under an applied voltage of 10 V. The rate of deposition was increased by decreasing the …
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Multifunctionality in epoxy/glass fibers composites with graphene interphase
… nanosheets by an electrophoretic deposition (EPD) technique. Graphite oxide was prepared using modified Hummers method in which raw graphite powder was oxidized using potassium permanganate (KMnO4) in acidic solution. Using ultrasonic technique, the graphite oxide was dispersed homogenously in …
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Il risparmio energetico in edilizia nei climi temperati: normativa, metodi di valutazione e scelta delle prestazioni degli elementi di fabbrica e costruttivi
… abbia il marchio Ecolabel o una certificazione EPD. La scelta di utilizzare un prodotto poco inquinante è legata unicamente alla sensibilità degli operatori edilizi. Per capire quindi in che modo l’efficienza energetica e la scelta dei prodotti interagiscono, è stato necessario calcolare lo …
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