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2019

Series

Control

Faculty of Engineering and Information Sciences - Papers: Part B

Articles 1 - 3 of 3

Full-Text Articles in Engineering

Selective Atomic-Level Etching On Short S-Glass Fibres To Control Interfacial Properties For Restorative Dental Composites, Kiho Cho, Guannan Wang, Raju Raju, Jian Fang, Ginu Rajan, Martina Stenzel, Paul Farrar, Gangadhara B. Prusty Jan 2019

Selective Atomic-Level Etching On Short S-Glass Fibres To Control Interfacial Properties For Restorative Dental Composites, Kiho Cho, Guannan Wang, Raju Raju, Jian Fang, Ginu Rajan, Martina Stenzel, Paul Farrar, Gangadhara B. Prusty

Faculty of Engineering and Information Sciences - Papers: Part B

Interfacial bonding between fibre and matrix is most critical to obtain enhanced mechanical properties of the resulting composites. Here we present a new surface tailoring method of selective wet etching and organosilicon monomers (3-(Trimethoxysilyl) propyl methacrylate, TMSPMA) deposition process on the short S-Glass fibre as a reinforcing material, resulting in increased mechanical retention and strong chemical bonding between glass fibres and polymer resin (a mixture of triethylene glycol dimethacrylate (TEGDMA) and urethane dimethacrylate (UDMA) monomers). The effect of surface modification on fibre matrix interfacial strength was investigated through microdroplet tests. An S-Glass fibre treated with piranha solution (a mixture of …


Persulfate Oxidation-Assisted Membrane Distillation Process For Micropollutant Degradation And Membrane Fouling Control, Muhammad Bilal Asif, Zulqarnain Fida, Arbab Tufail, Jason Van Der Merwe, Frederic Leusch, Biplob K. Pramanik, William E. Price, Faisal I. Hai Jan 2019

Persulfate Oxidation-Assisted Membrane Distillation Process For Micropollutant Degradation And Membrane Fouling Control, Muhammad Bilal Asif, Zulqarnain Fida, Arbab Tufail, Jason Van Der Merwe, Frederic Leusch, Biplob K. Pramanik, William E. Price, Faisal I. Hai

Faculty of Engineering and Information Sciences - Papers: Part B

In this study, long-term performance of a persulfate (PS)-assisted direct contact membrane distillation (DCMD) process was examined for the treatment of secondary treated effluent spiked with a mixture of micropollutants including three pesticides and nine pharmaceuticals. A stand-alone DCMD ('control') was also operated under identical operating conditions for comparison. Depending on the micropollutant, the stand-alone DCMD achieved 86 to >99% removal. In comparison, removal by the PS-assisted DCMD was >99% for all investigated micropollutants. This was attributed to the fact that sulfate radicals (SO4-) formed following the activation of PS at the DCMD operating temperature (i.e., 40 °C) achieved micropollutant-specific …


Cooperative Secondary Voltage Control Of Static Converters In A Microgrid Using Model-Free Reinforcement Learning, Edward Smith, Duane A. Robinson, Ashish P. Agalgaonkar Jan 2019

Cooperative Secondary Voltage Control Of Static Converters In A Microgrid Using Model-Free Reinforcement Learning, Edward Smith, Duane A. Robinson, Ashish P. Agalgaonkar

Faculty of Engineering and Information Sciences - Papers: Part B

Agent-based secondary voltage regulation in an islanded MicroGrid is complicated by non-linear system dynamics, state couplings and uncertain communication network topology information. This paper proposes an off-policy learning algorithm for cooperative secondary voltage control which can synthesize an optimal feedback controller in real-time without knowledge of the system model. A simulation model has been developed using MATLAB/Simulink, which demonstrates a working controller. Results from the simulations are included, and practical considerations regarding implementation on a real system discussed.