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 19 of 19 for “"Optimal properties"”.
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On monitoring the attributes of a process
… p-charts and c-charts are shown to have certain optimal properties. Generalized p-charts, for monitoring multinomial processes, and generalized c-charts are introduced. Their properties are shown to depend upon multivariate chi-squared and generalized Poisson distributions, respectively. Various …
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Multi-objective evolutionary algorithms for product design
Identifying chemical compounds with optimal properties for specific applications presents a fundamental challenge in materials science. Traditional methods, based on trialand-error, are inefficient and costly. This thesis introduces an innovative integration of Computational Chemistry and Machine …
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Preparation and Characterization of Bio-based PCM Microcapsules for Thermal Energy Storage
… under different conditions, resulting in optimal properties. For the second phase, the focus was on the studies of inorganic PCM, which have higher latent heat of melting, higher thermal conductivity and lower price than the organic PCM. However, their supercooling, phase segregation, and …
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Dynamic and Post-Dynamic Microstructure Evolution in Additive Friction Stir Deposition
… many technologies deposit material with sub-optimal properties, limiting their use. This decrease in performance largely stems from porosity laden parts, and asymmetric solidification-based microstructures. Solid-state additive manufacturing techniques bypass these flaws, using deformation …
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Thin films of non-peripherally substituted liquid crystalline phthalocyanines A
… and hexyl (C6H13), in determining the physical properties. For the octyl substituted Pc molecules, the head-to-tail or Jaggregates within the as-deposited spun films produced a redshift of the optical absorption Q bands in relation to their 0.01 mgml-1 solutions. Annealing at 80˚C produced a …
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Quantile Inference and Change Point Test under Time Series Non-stationarity
… representations are established with nearly optimal approximation rates. Two cusum-type test statistics, one based on the regression coefficients and the other based on the gradient vectors are considered. Two of the most frequently used change point testing procedures, pivotalization and …
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Friction material (metal reinforcement) analysis of brake pad for light rail train system
… The purpose of this research is to determine the optimal friction materials composition of brake pad for light rail train system. Currently all the component of the train system including brake pad is imported from overseas such as Germany. Hence, this research is use to find the new formulation …
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CNT-reinforced polymer nanocomposite by molecular dynamics simulations
… mechanical, electrical, thermal and optical properties. The enhancement of ultimate mechanical properties of CNT reinforced polymer composites is governed not just by the properties of the two phases but by dispersion of the CNTs, interactions in the interfacial region and local molecular …
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Cationic lipid formaulation of short interference RNA (siRNA) for delivery to respiratory epithelial cells
… plasmid<br/>(pDNA) delivery. In search for an optimal lipid-based formulation for siRNA<br/>delivery to the lungs, cationic lipid-based carriers were investigated for the delivery of siRNA in comparison with pDNA delivery. The aim was to determine whether the factors that influence …
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An adaptive variational multiscale method with discontinuous subscales for aerodynamic flows
… In this work, the method is derived and its optimal properties demonstrated through analysis and numerical experiment. In particular, the thesis describes the integration of VMSD in a high order adaptive method, namely the Mesh Optimization via Error Sampling and Synthesis (MOESS) algorithm. …
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Microneedle delivery for improved efficacy of antiretroviral and antibiotic drugs
… antibiotic respectively, were chosen for their optimal properties, including bioavailability, half-life, and dosage. Saquinavir was encapsulated in the organic phase of biodegradable poly(lactide-co-glycolide) microparticles (MP) synthesized through a double emulsion. Similarly, Ciprofloxacin …
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Evaluation of sorbents for the cleanup of coal-derived synthesis gas at elevated temperatures
… dioxide capture technologies. We identified the optimal properties of CO2 sorbents for this application. Although warm CO2 capture using solid sorbents could lead to slight efficiency increases over conventional cold cleanup methods, the potential gains are much smaller than previously estimated. …
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The development of a dual extrusion blending process and composites based on thermotropic liquid crystalline polymers and polypropylene
… is developed in the DEP and to determine the optimal properties possible in composite materials generated from the blends. The DEP consists of two single screw extruders within which the TLCP and matrix material are plasticated separately. The two continuous polymer streams are joined and then …
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Structually diverse Cu-64-labeled RGD peptide conjugates for PET imaging of αvβ3 expression
… labeling, the specific receptor-binding properties of the ligand can be exploited to guide the radioactivity to tissues expressing a particular receptor. This dissertation reports on the development of integrin α<sub>v</sub>β<sub>3</sub>-targeting radiopharmaceuticals for …
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MULTILAYER COMPOSITE SOLID ELECTROLYTES FOR LITHIUM ION BATTERIES
… With the aim of fabricating SEs which possess optimal properties, a novel SE was developed by forming a multilayer structure. The multilayer SE was fabricated using polymeric and ceramic electrolytes, which can integrate the merits from different layers and materials and optimize its overall …
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Advancing Artificial Intelligence for Efficient and Synthesizable In-silico Molecular Design
… space in order to identify molecules with more optimal properties, given a limited set of known examples. Due to the inherent trade-off between computational efficiency and predictive accuracy in modeling methods, it is crucial to evaluate as few candidate molecules as possible to identify the …
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Integrating physical unclonable functions from novel nanomaterials, circuit elements, and memory technologies into future hardware architectures
… wafers are developed to construct PUFs with optimal properties, such as high robustness, uniformity, and entropy, even under varying environmental conditions. These conditions include fluctuations in ambient temperature. Based on an analysis of fundamental system components, this work …
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Iron nanoparticles and zirconium metal-organic frameworks for therapeutic application
… discussed. Conclusions are reached as to what properties an ideal material would feature. Chapter 2 describes the experimental and analytical procedures employed in the synthesis and characterisation of the materials prepared in this work. The interdisciplinary nature of this project required a …
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Production and characterisation of hydroxyapatite/multi-walled carbon nanotube composites
… bone growth along its surface, its mechanical properties are not sufficient for major load-bearing medical devices. Carbon nanotubes (CNTs), as one of the strongest and stiffest materials available, have the potential to strengthen and toughen HA, thus expanding the range of clinical uses for …