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Selection of Simplified Models and Parameter Estimation Using Limited Data
(2009-12-23)
Due to difficulties associated with formulating complex models and obtaining reliable estimates of unknown model parameters, modellers often use simplified models (SMs) that are structurally imperfect and that contain a ...
Rhizosphere/Soil Microorganisms in the Phytoremediation of Biphenyl and Dioxane
(2015-07-29)
Biphenyl and dioxane biodegradation by poplar and willow rhizosphere microorganisms was studied in a phytoremediation test-plot contaminated with biphenyl and dioxane. A dioxane-degrading consortium enriched from the ...
Parameter Estimation Techniques for Nonlinear Dynamic Models with Limited Data, Process Disturbances and Modeling Errors
(2013-12-23)
In this thesis appropriate statistical methods to overcome two types of problems that occur during parameter estimation in chemical engineering systems are studied. The first problem is having too many parameters to estimate ...
Amphiphilic Diblock Copolymers as Stabilizers in Emulsion Polymerization
Emulsion polymerizations, used to produce many commodity materials, require stabilizing agents to prevent phase separation. Incorporation of these stabilizers in the final polymer may have negative effects on product ...
Living Radical Polymerization in Aqueous Dispersed Systems with Water-Soluble Catalysts
(2015-10-03)
Living radical polymerization is an important technique for synthesizing advanced macromolecules including block copolymers. Since its discovery in the early 1990s the capability of the field has expanded with new types ...
The Synthesis of Cellulose Graft Copolymers Using Cu(0)-Mediated Polymerization
(2013-05-29)
Cellulose is the most abundant renewable polymer on the planet and there is great interest in expanding its use beyond its traditional applications. However, its hydrophilicity and insolubility in most common solvent ...
Characterization of Thermo-Fluid Transport Properties of Coated and Uncoated Open-Cell Metal Foam Monoliths
(2011-12-13)
An improved steady-state method combining experiment and mathematical modelling has been developed to characterize the scalable convective heat transfer coefficient, hvol [W*m^(-3)*K^(-1)], of uncoated and catalyst-support ...
Obtaining the Best Model Predictions and Parameter Estimates Using Limited Data
(2011-09-27)
Engineers who develop fundamental models for chemical processes are often unable to estimate all of the model parameters due to problems with parameter identifiability and estimability. The literature concerning these two ...
A Study of Polymer-Small Molecule Interactions for Solid-Liquid Two Phase Partitioning Bioreactors With Emphasis on the Bioproduction of 2-Phenylethanol
(2009-07-02)
Biphasic systems have been studied for in situ product removal (ISPR), and have shown improvements in bioreactor performance. With immiscible solvents, concerns associated with solvent biocompatibility, bioavailability and ...
Laser Transmission Welding of Polybutylene Terephthalate and Polyethylene Terephthalate Blends
(2010-08-31)
Laser Transmission Welding (LTW) involves localized heating at the interface of two pieces of plastic (a laser transparent plastic and laser absorbing plastic) to be joined. It produces strong, hermetically sealed welds ...