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 11 of 11 for “"parameter relationships"”.
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Statistical Investigation of Friction Stir Processing Parameter Relationships
… is still inadequate. Knowledge of FSW parameter relationships is needed to better understand the process and implement proper machine control. This study utilized a 3-factor, 3-level factorial design of experiments to investigate relationships between key process inputs and measured …
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Modeling the Arterial System to Improve Ultrasound Measurements of Hemodynamic Parameters
One of the most crucial parameters for monitoring Cardiovascular disease (CVD) risk is one’s Arterial Blood Pressure (ABP). Clinicians use a radial arterial catheter to measure ABP in an intensive care unit (ICU). Although this method is considered the gold standard, its invasive nature makes it …
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Modeling Synapse Formation and Growth as a Non-Biological Analog to the Brain
… allow for the extraction of meaningful parameter relationships as well as governing equations relating both filament length and time, and current and time. By investigating electric potential-driven cation diffusion, the model provides insights for designing more advanced computing …
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Low Carbon n-GaN Drift Layers for Vertical Power Electronic Devices
… in GaN growth could be predicted using a single parameter based on the ratio of ammonia flow to the growth rate. This model accurately predicts carbon concentrations ranging from 1x1017 to 5x1014 cm-3 while allowing for maximized growth rates. Other extrinsic dopants have either been reduced …
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Examination of model uncertainty and parameter sensitivity in correlated systems using covariance structure analysis
Correlated parameters are often expected when modeling a natural system. However, correlation among the variables often blurs the model uncertainty and makes it difficult to determine parameter sensitivity. In simple systems, model structure and uncertainty can be explained directly; however, …
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Optimization of spodumene flotation with fatty acid collectors
… (CCD) of experiment investigated conditioning parameters and pH behaviour, which later guided collector adsorption studies using Time of Flight-Secondary Ion Mass Spectroscopy (ToF-SIMS) and X-ray Photoelectron Spectroscopy (XPS). Significant conditioning parameter relationships were identified …
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Characterization of Wood Features Using Color, Shape, and Density Parameters
… there exists a lack of understanding of what parameters are best used to differentiate wood features. The goal of this research is to demonstrate that by having an in depth knowledge of how wood features are represented by color, shape, and density parameters, more accurate classification …
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Data-driven Dynamic Control Scheme for Antibody Producing CHO Cell Cultures in Fed-batch
… the importance of identifying critical process parameters (CPP) of a bioprocess that influence critical quality attributes (CQA), to achieve seamless integration of analytical data with real-time monitoring and control for enhanced process understanding and to overcome manufacturing challenges. …
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Development and testing of climate-sensitive site index models for long rotation Eucalyptus grandis in Limpopo province of South Africa
… against compartment-level enumeration data. Parameter–climate relationships were quantified using correlation analysis and stepwise AIC model selection, providing the basis for developing climate-modified dynamic height equations. The PSP dataset captured wide variability in dominant height …
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Enhanced bioethanol fermentation from mixed xylose and glucose using free and immobilized cultures: mathematical model and experimental observation
… sequential fermentation. Firstly, where kinetic parameters were not available in literature, the kinetic parameter relationships of glucose and xylose utilization between different constructs of the same species were examined, for example, a wild type and engineered strain. This approach was used …
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Discovery, surveillance, and management of herbicide-resistant amaranthus spp
… ten-step dose response to both herbicides. Four-parameter log-logistic models were constructed for resistant and sensitive accessions to each herbicide. A significant difference between the accession in the dose required for 50% inhibition (ED50 value) and lower limit were observed for response …