Browsing Chemical Engineering by Title
Now showing items 31-50 of 990
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Antimicrobial activity of polyethyleneimine/polyurethane (PEI/PU) colloidal films
(University of Waterloo, 2021-08-27)With the occurrence of healthcare associated infections (HAIs), the development of novel antimicrobial materials has drawn significant research attention. However, developing an antimicrobial material that can be long-term ... -
Antimicrobial Cellulose Nanocrystals Containing Quaternary Ammonium Polymers Prepared via Atom Transfer Radical Polymerization
(University of Waterloo, 2020-09-09)Nanomaterials have been widely used as antimicrobial agents for their high efficiency. However, the lack of recovery techniques and toxicity has raised concerns for the use of these materials. Cellulose nanocrystals (CNCs), ... -
Application of Cellulose Nanocrystals (CNCs) in Emulsified Asphalt
(University of Waterloo, 2022-03-18)In today's world, transportation infrastructure plays a vital role in global competitiveness and the quality of life in societies. A considerable fraction of taxpayers' money is spent on expanding and maintaining road ... -
Application of Cellulose Nanomaterials in Thermoplastic Composites
(University of Waterloo, 2016-08-31)Nanocrystalline cellulose (CNC) is a renewable and biodegradable nanomaterial obtained by acid hydrolysis of cellulose. It exhibits notable mechanical properties: a high aspect ratio and a high surface area. These properties ... -
Application of Cellulose Nanomaterials in Water Treatment Processes
(University of Waterloo, 2020-01-20)Many advanced water treatment processes have been designed and implemented to purify water, such as adsorption, photocatalysis, and membrane filtration processes. All these processes have the potential to be enhanced through ... -
Application of Deep Learning in Chemical Processes: Explainability, Monitoring and Observability
(University of Waterloo, 2022-01-04)The last decade has seen remarkable advances in speech, image, and language recognition tools that have been made available to the public through computer and mobile devices’ applications. Most of these significant ... -
Application of Environmental Technology Management (ETM) to Automobile Exhaust Emission Reduction
(University of Waterloo, 2010-11-23)Vehicle emissions, arising from incomplete fuel combustion and reactions between N2 and O2 leading to NOX, have detrimental effects on human health and environment quality. Engine exhaust contains a variety of regulated ... -
Application of Flow Cytometry and Fluorescence Spectroscopy to Monitor and Predict the Fermentation Activity in a Vaccine Manufacturing Process
(University of Waterloo, 2019-01-07)Bordetella pertussis is a Gram-negative coccobacillus, pathogenic and aerobic bacterium responsible for causing whooping cough, which is an upper respiratory tract infection in humans. To prevent this disease whole cellular ... -
Application of hydrocarbon and perfluorocarbon oxygen vectors to enhance heterologous production of hyaluronic acid in engineered Bacillus subtilis
(University of Waterloo, 2017-12-19)In microbial cultivations for hyaluronic acid (HA) production, oxygen can be a limiting substrate due to its poor solubility in aqueous medium and the substantial increase in culture viscosity at relatively low HA titers. ... -
The Application of Markov Chain Monte Carlo Techniques in Non-Linear Parameter Estimation for Chemical Engineering Models
(University of Waterloo, 2013-09-25)Modeling of chemical engineering systems often necessitates using non-linear models. These models can range in complexity, from a simple analytical equation to a system of differential equations. Regardless of what type ... -
Application of Multi-wavelength Fluorometry to Monitoring Protein Ultrafiltration
(University of Waterloo, 2009-05-21)Membrane filtration of protein solutions is influenced by a wide range of processing and physicochemical conditions. Monitoring and optimizing membrane filtration may have advantages for achieving, in a cost effective ... -
Application of Niobium Compounds Towards the One-Step Synthesis of Methyl Isobutyl Ketone (MIBK) via Catalytic Distillation
(University of Waterloo, 2008-12-12)Dispersed niobia catalysts were prepared via a non-aqueous synthesis route. The effects of the type of oxide support, the support thermal pre-treatment, the calcination temperature and the niobia loading on the activity ... -
Applications of Graphene in Vanadium Redox Flow Batteries
(University of Waterloo, 2023-12-22)Vanadium redox flow batteries (VRFBs) exhibit great promise as easily scalable, long-lasting, modular systems for grid-scale energy storage. However, vanadium crossover and poor reaction kinetics increase their operating ... -
Applications of Polyvinylamine in Removal of Heavy Metals from Wastewater by Polymer-Enhanced Ultrafiltration and Adsorption
(University of Waterloo, 2016-01-14)In this study, water-soluble polyvinylamine (PVAm) was used as chelating agent for heavy metal removal from wastewater by polymer-enhanced ultrafiltration (PEUF). The effects of parameters involved in the ultrafiltration ... -
Approaches to Tailoring the Structure and Properties of Polyethylene
(University of Waterloo, 2002)Alternative methods to control the molecular weight and short chain branching distribution of polyethylene were investigated. The ability to produce polyolefins with multimodal microstructural distributions using single ... -
Aqueous intercalation-type electrode materials for grid-level energy storage: Beyond the limits of lithium and sodium
(Elsevier, 2018-08-01)Intermittent, fluctuational, and unpredictable features of renewable energy require grid-level energy storage (GES). Among various types of GES, aqueous electrochemical storage is undoubtedly the most promising method due ... -
Arginine-Rich Ionic Complementary Peptides and Their Drug Delivery Potential
(University of Waterloo, 2013-08-30)Ellipticine (EPT), a natural plant polyphenolic compound, has long been known for its significant anticancer and anti-HIV activities. Recent study on its photophysical properties has revealed that ellipticine has three ... -
Assembly of an Ionic-Complementary Peptide on Surfaces and its Potential Applications
(University of Waterloo, 2007-09-25)Self-assembling peptides have emerged as new nanobiomaterials and received considerable attention in the areas of nanoscience and biomedical engineering. In this category are ionic-complementary peptides, which contain a ... -
Assessment of mathematical models for ultrafiltration of multi-solute continuous cross-flow process
(University of Waterloo, 2012-04-27)In recent years, ultrafiltration membrane-based technology has received increasing attention and great importance for water and waste water treatment. Different mathematical models are proposed to analyze and predict the ... -
Assessment of the Potential Functional Diversity of the Bacterial Community in a Biofilter
(University of Waterloo, 2006)A biofilter removes biodegradable contaminants from air by passing it through a biologically-active packed bed. The microorganism community is of fundamental interest but has been the focus of few studies. This work ...