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Mechanical and Mechatronics Engineering: Recent submissions
Now showing items 501-520 of 1512
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Effect of Martensite-Austenite (MA) on Mechanical Properties of X80 Linepipe Steel
(University of Waterloo, 2019-01-08)The aim of the present work is to dispel some of the controversy involving Martensite-Austenite (MA) in pipeline steel welds. The fraction, size, morphology and distribution of Martensite-Austenite can have considerable ... -
Characterization of Ti-5553 parts printed by Selective Laser Melting (SLM)
(University of Waterloo, 2018-12-20)Nowadays, titanium alloys are widely used in a variety of industries like automotive and aerospace due to their high strength to weight ratio. Ti-5%Al-5%V-5%Mo-3%Cr is a metastable near beta titanium alloy with excellent ... -
Development of a Novel Microwave Sensing System for Lab on a Chip Applications
(University of Waterloo, 2018-12-20)Microwave technology presents tremendous potential as a remote-sensing technology for a wide range of applications spanning from life science research to food industries, pharmaceutical research, and new material ... -
On the Manifold: Representing Geometry in C++ for State Estimation
(University of Waterloo, 2018-12-19)Manipulating geometric objects is central to state estimation problems in robotics. Typical algorithms must optimize over non-Euclidean states, such as rigid transformations on the SE(3) manifold, and handle measurements ... -
Development, Optimization and Testing of an Innovative Wedge Anchorage for CFRP Plates
(University of Waterloo, 2018-12-14)Replacing degraded concrete structures can be quite expensive and time consuming; thus, strengthening these structures with fiber reinforced polymer (FRP) elements, such as carbon FRP (CFRP) plates, is more practical. ... -
Highly pressurized partially miscible liquid-liquid flow in a micro-T-junction. I. Experimental observations
(American Physical Society (APS), 2017-04-24)This is the first part of a two-part study on a partially miscible liquid-liquid flow (liquid carbon dioxide and deionized water) which is highly pressurized and confined in a microfluidic T-junction. Our main focuses are ... -
Highly pressurized partially miscible liquid-liquid flow in a micro-T-junction. II. Theoretical justifications and modeling
(American Physical Society (APS), 2017-04-24)This is the second part of a two-part study on a partially miscible liquid-liquid flow ( carbon dioxide and deionized water) that is highly pressurized and confined in a microfluidic T-junction. In the first part of this ... -
Experimental study on droplet generation in flow focusing devices considering a stratified flow with viscosity contrast
(Elsevier BV, 2017-05-18)High throughput analysis is highly demanded in a variety of chemical reactions. Droplet microfluidics offers unique advantages over traditional multi-well plate systems for high throughput analysis such as providing a ... -
Photocatalytic performances of ZnO nanoparticle film and vertically aligned nanorods in chamber-based microfluidic reactors: Reaction kinetics and flow effects
(Elsevier BV, 2017-07-15)The nanoparticle seed layer (a film) and vertically aligned nanorods of zinc oxide (ZnO) with different lengths were fabricated within a novel chamber-based microfluidic (microchamber) reactor with a varying height of ... -
An integrated microfluidic device for the sorting of yeast cells using image processing
(Springer Nature, 2018-02-23)The process of detection and separation of yeast cells based on their morphological characteristics is critical to the understanding of cell division cycles, which is of vital importance to the understanding of some diseases ... -
Simulation before fabrication: a case study on the utilization of simulators for the design of droplet microfluidic networks
(Royal Society of Chemistry (RSC), 2018-10-10)The functional performance of passively operated droplet microfluidics is sensitive with respect to the dimensions of the channel network, the fabrication precision as well as the applied pressure because the entire network ... -
Hydrodynamic shrinkage of liquid CO2 Taylor drops in a straight microchannel
(IOP Publishing, 2018-02-12)Hydrodynamic shrinkage of liquid CO2 drops in water under a Taylor flow regime is studied using a straight microchannel (length/width similar to 100). A general form of a mathematical model of the solvent-side mass transfer ... -
A droplet-based microfluidic platform for rapid immobilization of quantum dots on individual magnetic microbeads
(Springer Nature, 2018-06-01)Quantum dots (QDs) provide opportunities for the development of bioassays, biosensors, and drug delivery strategies. Decoration of the surface of QDs offers unique functions such as resistance to non-specific adsorption, ... -
Microfluidic droplet trapping, splitting and merging with feedback controls and state space modelling
(Royal Society of Chemistry (RSC), 2016-07-16)We combine image processing and feedback controls to regulate droplet movements. A general modelling approach is provided to describe droplet motion in a pressure-driven microfluidic channel network. A state space model ... -
Polyamide 6.6 separates oil/water due to its dual underwater oleophobicity/underoil hydrophobicity: Role of 2D and 3D porous structures
(Elsevier BV, 2019-02-01)Porous polyamide functionalized by plasma or various coatings has been investigated for oil/water separation. In literature, polyamide has rarely been studied for oil removal, and this work investigated the performance of ... -
Numerical Study on Single Flowing Liquid and Supercritical CO2 Drop in Microchannel: Thin Film, Flow Fields, and Interfacial Profile
(MDPI, 2018-06-01)Taylor segments, as a common feature in two- or multi-phase microflows, are a strong flow pattern candidate for applications when enhanced heat or mass transfer is particularly considered. A thin film that separates these ... -
Droplet Microfluidic System with On-Demand Trapping and Releasing of Droplet for Drug Screening Applications
(American Chemical Society (ACS), 2017-01-03)96-Well plate has been the traditional method used for screening drug compounds libraries for potential bioactivity. Although this method has been proven successful in testing doseÐresponse analysis, the microliter consumption ... -
Microwave temperature measurement in microfluidic devices
(Royal Society of Chemistry (RSC), 2016-05-10)In spite of various existing thermometry methods for microfluidic applications, it remains challenging to measure the temperature of individual droplets in segmented flow since fast moving droplets do not allow sufficient ... -
Effective Thermo-Capillary Mixing in Droplet Microfluidics Integrated with a Microwave Heater
(American Chemical Society (ACS), 2017-02-07)In this study, we present a microwave-based microfluidic mixer that allows rapid mixing within individual droplets efficiently. The designed microwave mixer is a coplanar design with a small footprint, which is fabricated ... -
A microfluidic chip integrated with droplet generation, pairing, trapping, merging, mixing and releasing
(Royal Society of Chemistry (RSC), 2017-03-16)Developing a microfluidic chip with multiple functions is highly demanded for practical applications, such as chemical analysis, diagnostics, particles synthesis and drug screening. This work demonstrates a microfluidic ...