Browsing Waterloo Research by Title
Now showing items 2361-2380 of 2463
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Upflow anaerobic-microaerobic fixed biofilm reactor integrating methanogenesis with partial nitrification
(Elsevier, 2018-09-15)An anaerobic-microaerobic fixed biofilm (AMFB) reactor, that integrates methanogenesis with partial nitrification within a single unit was investigated to achieve carbon removal simultaneously with ammonium oxidation in ... -
Uranium and molybdenum isotope evidence for an episode of widespread ocean oxygenation during the late Ediacaran Period
(Elsevier, 2015-05-01)To improve estimates of the extent of ocean oxygenation during the late Ediacaran Period, we measured the U and Mo isotope compositions of euxinic (anoxic and sulfidic) organic-rich mudrocks (ORM) of Member IV, upper ... -
Uranium isotope compositions of mid-Proterozoic black shales: Evidence for an episode of increased ocean oxygenation at 1.36Ga and evaluation of the effect of post-depositional hydrothermal fluid flow
(Elsevier, 2017-09-01)We report U isotope data for marine black shales of the early Mesoproterozoic Velkerri Formation (Roper Group) and late Paleoproterozoic Wollogorang Formation (Tawallah Group) from the McArthur Basin, Northern Australia. ... -
URBAN PHOSPHORUS SPECIATION AND EXPORT LOADS: A PAIRED SEWERSHED FIELD AND MODELING STUDY
(University of Waterloo, 2023-05-14)In this study, annual and seasonal loads of phosphorus (P) exported from two neighbouring urban sewersheds (AJE and AJW) discharging into Lake Ontario were estimated. The following different chemical pools of P were ... -
Usage of Interactive Event Timelines in Collaborative Digital Tabletops with Automation
(Springer, 2016)Tabletop computers are increasingly being used for complex scenarios, such as emergency response. In such scenarios, maintaining situation awareness of dynamic changes automated by the system is crucial for users to make ... -
Usage of Interface Management System in Adaptive Reuse of Buildings
(MDPI, 2019-05)Adaptive reuse of buildings is considered a superior alternative for new construction in terms of sustainability and a disruptive practice in the current capital project delivery model for the renewal of today’s built ... -
The use of machine learning algorithms in recommender systems: A systematic review
(Elsevier, 2018-05-01)Recommender systems use algorithms to provide users with product or service recommendations. Recently, these systems have been using machine learning algorithms from the field of artificial intelligence. However, choosing ... -
Use of non-orthogonal factor analysis for gauging illusory halo: A technical report
(2022-05-27)Non-orthogonal factor analysis is examined as a possible aid in assessing the extent of illusory halo in survey responses. Data from several studies involving students' evaluation of teaching (SETs) are re-analyzed with ... -
Use of prospective and retrospective risk assessment methods that simplify chemical mixtures associated with treated domestic wastewater discharges
(Wiley, 2018-03-01)A framework is presented that is intended to facilitate the evaluation of potential aquatic ecological risks resulting from discharges of down-the-drain chemicals. A scenario is presented using representatives of many of ... -
The use of random forests to classify amyloid brain PET
(Wolters Kluwer Health, 2019-10)Purpose: To evaluate random forests (RFs) as a supervised machine learning algorithm to classify amyloid brain PET as positive or negative for amyloid deposition and identify key regions of interest for stratification. Methods: ... -
The Use of Random Forests to Identify Brain Regions on Amyloid and FDG PET Associated With MoCA Score
(Wolters Kluwer Health, 2020-06)Purpose: The aim of this study was to evaluate random forests (RFs) to identify ROIs on 18F-florbetapir and 18F-FDG PET associated with Montreal Cognitive Assessment (MoCA) score. Materials and Methods: Fifty-seven subjects ... -
Use of the interRAI CHESS Scale to Predict Mortality among Persons with Neurological Conditions in Three Care Settings
(Public LIbrary of Science, 2014-06-10)Background: Persons with certain neurological conditions have higher mortality rates than the population without neurological conditions, but the risk factors for increased mortality within diagnostic groups are less well ... -
User-Defined Gestures with Physical Props in Virtual Reality
(ACM, 2021-11-05)When interacting with virtual reality (VR) applications like CAD and open-world games, people may want to use gestures as a means of leveraging their knowledge from the physical world. However, people may prefer physical ... -
Using a collaborative research approach to develop an interdisciplinary research agenda for the study of mobile health interventions for older adults.
(JMIR Mhealth Uhealth., 2015-02-10)Background: Seniors with chronic diseases are often called on to self-manage their conditions. Mobile health (mHealth) tools may be a useful strategy to help seniors access health information at the point of decision-making, ... -
Using Available Information in the Assessment of Diagnostic Protocols
(OMICS International, 2015-02-20)A new binary screening or diagnostic test may be combined sequentially with an existing test using either a believe the positive or believe the negative protocol. Interest then lies in estimating the properties of the new ... -
Using differential mobility spectrometry to measure ion solvation: An examination of the roles of solvents and ionic structures in separating quinoline-based drugs
(Royal Society of Chemistry, 2015)Understanding the mechanisms and energetics of ion solvation is critical in many scientific areas. Here, we present a methodlogy for studying ion solvation using differential mobility spectrometry (DMS) coupled to mass ... -
Using Divergent Nozzle with Aerodynamic Lens to Focus Nanoparticles
(University of Waterloo, 2019-03-03)ANSYS Fluent will be used to simulate Computational Fluid Dynamics (CFD) for an efficient lens and nozzle design which will be explained in this paper. We have designed and characterized an aerodynamic lens and a divergent ... -
Using Pyrene Excimer Fluorescence To Probe Polymer Diffusion in Latex Films
(American Chemical Society, 2017-02-28)This study introduces a simple technique that can be used to quantitatively probe interparticle polymer diffusion (IPD) between adjacent particles in a latex film using pyrene excimer fluorescence (PEF). To demonstrate the ... -
Using Pyrene Excimer Fluorescence To Probe the Interactions between Viscosity Index Improvers and Waxes Present in Automotive Oil
(American Chemical Society, 2017-03-28)A new methodology based on pyrene excimer fluorescence (PEF) was applied to quantitatively measure the actual level of intermolecular association between ethylene propylene (EP) copolymers in toluene in the presence of ... -
Using the Instructional Design Process to Effectively Apply UDL to OER: Considerations, Limitations, and Best Practices
(Association of College and Research Libraries (ACRL), 2024-03)The Universal Design for Learning (UDL) framework has begun to have a significant impact on the instructional sphere of academic libraries, shifting how programs are designed, developed, and delivered. In related work, ...