Browsing Chemical Engineering by Title
Now showing items 427-446 of 987
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Hemi-Isoindigo Polymers and Oligomers for Temperature Sensing Applications
(University of Waterloo, 2022-02-09)Organic semiconductors are extensively used for electronic applications such as OFETs and OPVs due to their low-cost and well-defined manufacturing processes. This includes vacuum deposition, solution processing, and ... -
Heuristic Search Strategy for Transforming Microstructural Patterns to Optimal Copolymerization Recipes
(Wiley, 2018-03-12)Manipulation and optimization of copolymer microstructure for tailoring final properties is of great importance in macromolecular science and engineering. Uncovering the complexities of the interrelationships between ... -
Hierarchical Data Analysis for the Characterization of Polymeric Materials: Linking Measurements and Statistical Methodology
(ASEE, 2021-01-01)As future chemical engineers, it is important that students be able to identify and quantify sources of error. A statistical analysis technique that is often overlooked is hierarchical design methodology, which allows for ... -
High Areal-capacity and Durable Aqueous Rechargeable Zinc Li-ion Battery
(University of Waterloo, 2021-07-28)Rapid deployment of renewable energy sources around the world is crucial to lessen energy shortage and environmental pollution. As the contribution of renewable energy rises, energy storage with different battery systems ... -
High Performance n-Type Polymer Semiconductors for Printed Logic Circuits
(University of Waterloo, 2016-02-01)Solution processable polymer semiconductors open up potential applications for radio-frequency identification (RFID) tags, flexible displays, electronic paper and organic memory due to their low cost, large area processability, ... -
High Surface Area Cu/γ-Al2O3 Catalyst Synthesized by Reverse Microemulsion Method for CO2 Conversion via Reverse Water Gas Shift
(University of Waterloo, 2021-08-30)Nowadays, catalytic conversion of CO2 has gained great attention due to environmental issues caused by CO2 emissions around the world. CO2 can be considered as a source of carbon with hydrogenation (using renewable hydrogen) ... -
High Temperature Co-Sintering for Metal Supported-Solid Oxide Fuel Cell Fabrication
(University of Waterloo, 2019-01-23)Metal supported-solid oxide fuel cells (MS-SOFC) are third generation solid oxide fuel cells (SOFC). In these cells the primary support is a porous metal upon which the active cell layers (anode, electrolyte, and cathode) ... -
High-Level Microbial Production of Propionate in Engineered Escherichia coli
(University of Waterloo, 2015-01-07)Biological platforms for propionate production have been limited to anaerobic native microbial producers, such as Propionibacterium and Clostridium. In this work, we demonstrated high-level heterologous production of ... -
High-Performance Polymer Semiconductors for Organic Thin-Film Transistors
(University of Waterloo, 2012-08-31)A novel polymer semiconductor with side chains thermally cleavable at a low temperature of 200 °C was synthesized. The complete cleavage and removal of the insulating 2-octyldodecanoyl side chains were verified with TGA, ... -
Highly Crosslinked Natural Rubber-Cellulose Nanocrystals Composites for Sustainable Material Applications
(University of Waterloo, 2024-04-24)In a bid to develop environmentally friendly rubber materials, the use of renewable and sustainable additives and reinforcing fillers that could provide suitable mechanical property enhancement is of great interest. In ... -
Highly Filled, Durable, and Sustainable Wood-Plastic Composites from Recycled Thermoplastics
(University of Waterloo, 2022-09-26)The increasing concern for environmental sustainability and the accumulation of solid waste (e.g. single-use plastics) has led to an increased interest in the utilization of renewable feedstocks and recycling of plastics ... -
Hospital Air Emission Capture and Recovery
(University of Waterloo, 2014-09-12)Inhaled anesthetics used in hospital surgeries are typically volatile halogenated hydrocarbons. Very few of them are absorbed or metabolized by the patient during use, and, therefore, most of the exhaled gases are collected ... -
Hybrid Biocomposites with Starch Derived Nanoparticles and Cellulose Fibers
(University of Waterloo, 2017-06-01)The use of natural polymers such as starch and cellulose in composites has gained significant popularity due to two main reasons: i) biopolymers increase the ratio of biodegradable and renewable content in most fossil-based ... -
Hybrid Fuel Cell Vehicle Powertrain Development Considering Power Source Degradation
(University of Waterloo, 2009-01-23)Vehicle design and control is an attractive area of research in that it embodies a convergence of societal need, technical limitation, and emerging capability. Environmental, political, and monetary concerns are driving ... -
A Hybrid Neural Network- Mathematical Programming Approach to Design an Air Quality Monitoring Network for an Industrial Complex
(University of Waterloo, 2007-08-10)Air pollution sampling site selection is one of the most important and yet most vexing of the problems faced by those responsible for regional and urban air quality management and for the attainment and maintenance of ... -
A Hybrid of Stochastic Programming Approaches with Economic and Operational Risk Management for Petroleum Refinery Planning under Uncertainty
(University of Waterloo, 2007-06-14)In view of the current situation of fluctuating high crude oil prices, it is now more important than ever for petroleum refineries to operate at an optimal level in the present dynamic global economy. Acknowledging the ... -
Hybrid Polymer and Peptide-Based Nanostructures for Stimuli-Responsive Drug Delivery
(University of Waterloo, 2014-08-21)Targeting of human tissues by nanomedicines can occur both passively, benefiting from the enhanced permeation and retention (EPR) effect, and actively, through design elements which exploit the unique microenvironment (pH, ... -
Hybrid Tin Based Nanostructures Wrapped with Graphene as Efficient Anode Material for Lithium Ion Batteries
(University of Waterloo, 2015-08-12)Recently, many developments in the electric & hybrid electric vehicles, and in the electronic devices, have resulted in an increasing demand for high power and high energy density lithium-ion batteries. The current commercial ... -
Hydrodesulfurization and Hydrodenitrogenation of Model Compounds Using in-situ Hydrogen over Nano-Dispersed Mo Sulfide Based Catalysts
(University of Waterloo, 2010-10-29)Heavy oil derived from oil sands is becoming an important resource of energy and transportation fuels due to the depletion of conventional oil resources. However, bitumen and heavy oils have a low hydrogen/carbon ratio and ... -
Hydrodesulphurization of Light Gas Oil using Hydrogen from the Water Gas Shift Reaction
(University of Waterloo, 2009-08-25)The production of clean fuel faces the challenges of high production cost and complying with stricter environmental regulations. In this research, the ability of using a novel technology of upgrading heavy oil to treat ...