Browsing Chemical Engineering by Title
Now showing items 455-474 of 987
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Identification of Dynamic Metabolic Flux Balance Models Based on Parametric Sensitivity Analysis
(University of Waterloo, 2016-06-15)A dynamic mathematical model that involves a set of physicochemical parameters can describe a dynamic system. Parametric sensitivity analysis studies the effect of changes in these parameters on model outputs of interest. ... -
Identification of Factors Limiting Heterologous Lipase Expression in the Cytoplasm and the Periplasm as well as Display on Cell Surface of Escherichia coli
(University of Waterloo, 2008-08-07)Lipase B from Pseudozyma antarctica (PalB), had been expressed in several recombinant protein hosts and showed very good transesterification activity for biodiesel production. However, the functional expression could not ... -
Identifying model error in metabolic flux analysis - a generalized least squares approach
(BioMed Central, 2016-09-13)Background: The estimation of intracellular flux through traditional metabolic flux analysis (MFA) using an overdetermined system of equations is a well established practice in metabolic engineering. Despite the continued ... -
Immobilization of Gold Nanoparticles for Colourimetric Detection of Biofilms on Surfaces
(University of Waterloo, 2015-11-02)Biofilms in contact lens cases amplify the risk of microbial and infiltrative keratitis, which can lead to severe eye damage and vision loss. A method warning users of biofilm contamination on the contact lens case surface ... -
The Impact of Degradation Reactions on Aprotic Metal-O2 Battery Performance
(University of Waterloo, 2016-04-18)The need for new portable energy storage technologies places increasing demand on the development of new batteries beyond Li-ion. Potential candidates to fill this necessity are the class of metal-O2 batteries. In particular, ... -
Impact of dissolved oxygen during UV-irradiation on the chemical composition and function of CHO cell culture media
(Public Library of Science, 2016-03-14)Ultraviolet (UV) irradiation is advantageous as a sterilization technique in the biopharmaceutical industry since it is capable of targeting non-enveloped viruses that are typically challenging to destroy, as well as smaller ... -
The Impact of Graphene Sheet Size on the Performance of Interconnected Graphene Foam-Based Supercapacitors
(University of Waterloo, 2015-08-24)The increasing demand for energy and growing concerns of propagating greenhouse emissions has directed many investments towards the furtherance of benign energy storage commercialization. Unfortunately, batteries continue ... -
Impact of High Fidelity Battery Models for Vehicle Applications
(University of Waterloo, 2015-08-14)Automotive battery models, compared with personal electronics, are more complex as they experience a larger range of current discharge/charge rates. Electronics have a constant power demand, and thus a constant current is ... -
Impact of Liquid Water on Reactant Mass Transfer in PEM Fuel Cell Electrodes
(Electrochemical Society, 2010)The breakthrough conditions (capillary pressure and liquid water saturation) in a fibrous gas diffusion medium (GDM) used in polymer electrolyte membrane (PEM) fuel cell electrodes have been studied experimentally by two ... -
Implementation of Power-to-Gas to Reduce Carbon Intensity and Increase Renewable Content in Liquid Petroleum Fuels
(University of Waterloo, 2017-08-28)Power-to-gas (PtG) is an emerging energy storage concept, which can transfer the surplus and intermittent renewable generated power into a marketable hydrogen, as well as providing other ancillary services for the electrical ... -
Implications of inherent inhomogeneities in thin carbon fiber-based gas diffusion layers: A comparative modeling study
(Elsevier, 2019-02-01)Thin porous media are present in multiple electrochemical energy devices, where they provide key transport and structural functions. The prototypical example is gas diffusion layers (GDLs) in polymer-electrolyte fuel cells ... -
Improved Dynamic Latent Variable Modeling for Process Monitoring, Fault Diagnosis and Anomaly Detection
(University of Waterloo, 2024-01-04)Due to the rapid advancement of modern industrial processes, a considerable number of measured variables enhance the complexity of systems, progressively leading to the development of multivariate statistical analysis (MSA) ... -
Improved Electric Vehicle Powertrain Incorporating a Lithium-Ion Battery and a Range Extender Zinc-Air Battery, plus Associated Health and Economic Benefits
(University of Waterloo, 2019-11-26)As the world confronts the serious challenge posed by anthropogenic climate change, electric vehicles have emerged as a serious candidate to displace gasoline-burning vehicles. In spite of the environmental and operational ... -
Improved Environmental Operation of Alcohol Breathalyzers with Functionalized Graphene Nanocomposite Membranes
(University of Waterloo, 2016-09-06)Driving under the influence of alcohol is prohibited or restricted in almost every country on the planet. In Canada, a Blood Alcohol Content (BAC) of 0.08 g dL-1 results in a Criminal Code offense and vehicle impoundment. ... -
Improved performance of the rechargeable hybrid aqueous battery at near full state-of-charge
(Elsevier, 2018-05-01)For the first time, a green lignin/silica nanocomposite (LSC) is introduced to the rechargeable hybrid aqueous Zn/LiMn2O4 battery (ReHAB) as additive in the cathode formulation. Lignin acts as a key role to regulate and ... -
Improved Slow Feature Analysis for Process Monitoring
(University of Waterloo, 2022-08-22)Unsupervised multivariate statistical analysis models are valuable tools for process monitoring and fault diagnosis. Among them, slow feature analysis (SFA) is widely studied and used due to its explicit statistical ... -
Improving Biocompatibility of Implantable Bioelectronics using Zwitterionic Cysteine
(University of Waterloo, 2017-04-27)Recent advances in bioelectronics have allowed for faster diagnoses of diseases as well as treatments for disorders that were previously considered incurable. The performance of these devices is, however, severely hindered ... -
Improving Productivity in Bioreactors through Control of Cell Heterogeneity
(University of Waterloo, 2022-12-22)Whooping cough, also referred to as pertussis, is a highly contagious bacterial respiratory tract disease. At Sanofi Pasteur, the fermentation step in the manufacturing of the vaccine for pertussis involves a sequence of ... -
In situ compression and X-ray computed tomography of flow battery electrodes
(Elsevier, 2018-09-01)Redox flow batteries offer a potential solution to an increase in renewable energy generation on the grid by offering long-term, large-scale storage and regulation of power. However, they are currently underutilised due ... -
In situ Plasticization of Starch and Coblending with Bio-based Polyesters: An Investigation into The Process Parameters for Continuous Thermoplastic Starch Co-Polyester Manufacturing
(University of Waterloo, 2019-05-01)Today’s industry seeks to engage in change which provides both environmentally and economically sustainable manufacturing solutions. The plastic industry’s current challenge is to produce bio-based polymers which offer ...