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 127 for “"Materials properties"”.
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EXPLOITING NANOSCALE MATERIALS PROPERTIES FOR CONTROLLED DRUG DELIVERY SYSTEMS
… opportunities afforded by synthesis of nanoscale materials to be applied inside the colon. It must be robust enough to cope with the adverse conditions in the gastrointestinal tract (GI) and be able to reach and release “on demand” at the colon area at the right time. In this work, an oral capsule …
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Analogue-Domain Machine Learning Computations Exploiting 2D Materials Properties
… a result of its abundance, as well as material properties, including stable native oxide formation, and ability to be miniaturised. However, new application classes and the physical limitations of traditional digital CMOS have triggered a wave of research into alternative materials and devices …
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Magnetic and Materials Properties Changes in Aged FE-CU Alloys
Made available in DSpace on 2017-07-06T18:48:12Z (GMT). No. of bitstreams: 3 Giacobbe_Michael_J_III_MS.pdf: 41300364 bytes, checksum: 2bf83e02d9d843994481c2dc681013f3 (MD5) Giacobbe_Michael_J_III_MS_ABS.pdf: 563430 bytes, checksum: c48111a9bd774e8ca29028ef03c5439b (MD5) license.txt: 4813 bytes, …
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Materials properties of pharmaceutical formulations for thin-film-tablet continuous manufacturing
… out by Karl Fischer Titration and mechanical properties such as tensile strength were measured for all API/HPMC and placebo films. It was found that the mechanical and physiochemical properties of SPP-100/HPMC films were regarded as the most promising thin film tablet candidate and it is …
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Materials properties of hafnium and zirconium silicates: Metal interdiffusion and dopant penetration studies.
… to improve their thermal stability, electrical properties, and reduce dopant penetration. Because CMOS processing requires high temperature anneals (up to 1050 °C), it is important to understand the diffusion properties of any metal associated with the gate dielectric in silicon at these …
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Analysis of materials properties of thin film structures for thermoelectric and thermophotovoltaic applications
… graded layers and AlAs/GaAs superlattices for materials studies related to thermophotovoltaics and thermoelectrics respectively. High resolution x-ray diffraction (HRXRD) was used to determine the As concentration in each of the InAsP layers. Arsenic concentration was found to vary linearly …
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Proton dynamics in ultrathin GdO𝑥H𝑦 films for magneto-ionics
Dynamic tuning of materials properties with simple voltage control is desirable for a variety of applications, from magnetic memory, to neuromorphic computing, to solid state pixels and optical circuit components. Metal oxides can conduct ionic current, allowing their properties and those of …
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Explorations in Supramolecular Chemistry: Part 1. Development of a Modular System for the Study of Self-Organization Through Microphase Segregation in Discotic Liquid Crystals. Part 2. Investigation of Deazapterins and Naphthyridines as End-Groups for Supramolecular Polymers
… sample quantities for the exploration of the materials' properties. The further development of end-groups based upon these ring systems was discontinued.
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Semiconductor nanowires: towards enhanced terahertz sources
… one-dimensional structure, and also studying materials properties by adopting ultrafast THz time-domain spectroscopy (THz-TDS). In order to achieve stronger THz emission from semiconductor nanowires, we suggest a novel approach for preparing the nanowires such that we fabricate the wires from …
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Ancient engineering : selective ceramic processing in the Middle Balsas Region of Guerrero, Mexico
… that potters can produce vessels with varying materials properties, such as thermal shock resistance and permeability. These properties are differentially useful for certain tasks, such as cooking or water-cooling. In certain cases, such as the use of shell temper in North America, an …
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Extending the predictive power and scope of electronic structure theory and quantum transport
… predicted its eventual impact on computational materials science. Almost 50 years after his original article, the field has seen tremendous improvement both in computer hardware and in software algorithms, and the resulting combination of an elegant theory and truly predictive power has enabled …
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Synthesis and supramolecular assembly of biomimetic polymers
A grand challenge in materials chemistry is the synthesis of macromolecules and polymers with precise shapes and architectures. Polymer microstructure and architecture strongly affect the resulting functionality of advanced materials, yet understanding the static and dynamic properties of these …
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Grain boundary network design
… observed to have a strong influence on many materials properties. This observation suggests that if we could control the types of grain boundaries present in a polycrystal and their spatial arrangement then it would be possible to dramatically improve the properties of polycrystalline …
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Aqueous Polysulfide Electrodes for Low-Cost Grid-Scale Energy Storage
… constraints. Further, studies focusing on the materials properties of aqueous polysulfide electrolytes as well as the kinetic and transport properties under various electrolyte/electrode designs were performed to elucidate the mechanisms of and limitations on aqueous polysulfide reactions. Two …
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Accelerating the development of novel photovoltaic materials
… next 10-15 years -- yet, historically novel PV materials have taken decades to go from discovery to commercial relevance. In this thesis, several strategies are outlined for faster screening of novel PV materials, including absorber layers and their respective carrier selective contacts, with …
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The mineralogy and chemistry of modern shallow-water and deep-sea corals
… and chemistry are what govern the materials properties of minerals, such solubility and strength. Thus, understanding the mineralogical nature of coral aragonite and how it forms are important for predicting bulk skeletal responses under climate change. Different models based on …
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A market analysis for high efficiency multi-junction solar cells grown on SiGe
… to improved performance associated with superior materials properties advantages as well as production cost reductions.
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Synthesis and chemical modification of carbon nanostructures for materials applications
… reactivities, electromagnetic response, and materials properties of various carbon nanostructures, including single-walled carbon nanotubes (SWCNTs), multi-walled carbon nanotubes (MWCNTs), graphite, and graphene nanoribbons (GNRs). Efficient production and modification of these unique …
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Ab initio screening of lithium diffusion rates in transition metal oxide cathodes for lithium ion batteries
… derived using transition state theory and common materials properties. The metric relies on net activation barrier for lithium diffusion. Several cathode materials are screened using this approach: [beta]'-LiFePO4, hexagonal LiMnBO3, monoclinic LiMnBO3, Li 3Mn(CO3)(PO4), and Li9V3 (P2O7)3(PO4) 2. …
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Optimizing hysteretic power loss of magnetic ferrite nanoparticles
… ferromagnets, we have identified ferrite materials optimal for remote heating. Several organometallic thermal decomposition methods were adapted to synthesize nanoparticles with anisotropy energies varying over 3 orders of magnitude and transferred into water using a high-temperature …
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