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Investigation of the Accelerated Thermal Aging Behavior of Polyetherimide and Lifetime Prediction at Elevated TemperatureDownload
Fire-protective clothing are manufactured using heat and flame resistant fibers that are made of high-performance polymers. These polymers exhibit a gradual reduction in their performance after long-term exposure under various aging conditions. This study investigates the thermal aging behavior...
Fire-protective fabrics made from high-performance fibers are available to provide protection from various hazardous conditions such as extreme heat and flame. However, these fabrics are often exposed to other deteriorating conditions, including moisture. It is a concern for the user's safety as...
A Hierarchical Constrained Reinforcement Learning for Optimization of Bitumen Recovery Rate in a Primary Separation VesselDownload
This work proposes a two-level hierarchical constrained control structure for reinforcement learning (RL) with application in a Primary Separation Vessel (PSV). The lower level is concerned with servo tracking and regulation of the interface level against variances in ore quality by manipulating...
Cubic metallic alloys generally grow along 〈100〉 directions due to the anisotropy of the solid-liquid interfacial energy. Under rapid solidification conditions, dendrites may deviate from 〈100〉 and develop unusual morphologies. Here, Al-alloy droplets (Al-4.5Cu, Al-10Si, Al-1.9Fe, Al-33Cu, all in...
State-of-the-art iridium-based catalysts for acidic water electrolysis: a minireview of wet-chemistry synthesis methodsDownload
With the increasing demand for clean hydrogen production, both as a fuel and an indispensable reagent for chemical industries, acidic water electrolysis has attracted considerable attention in academic and industrial research. Iridium is a well-accepted active and corrosion-resistant component of...
Effects of Solidification Thermal Parameters and Bi Doping on Silicon Size, Morphology and Mechanical Properties of Al 15wt.% Si 3.2wt.% Bi and Al 18wt.% Si 3.2wt.% Bi alloysDownload
The use of bismuth (Bi) in aluminum (Al) industries is recognized as prime importance because of possible recycling as alloying element in special applications such as those enhancing machinability. The effects of Bi interaction on solidification progress as well as on the resulting...
Final Report for Creative Sentencing: Protecting Worker Safety in Alberta by Enhancing Field Level Hazard Assessments and Training for Ground Hazards Associated with Tailings Facilities, Dams, and SystemsDownload
Efforts related to the safety and performance of oil sands tailings storage and transportation facilities have traditionally focused on preventing catastrophic failures and are well defined by government legislation and industrial best practices. However, a recent death related to ground hazards...
Plasma transferred arc additive manufacturing is a growing technology in the additive manufacturing world. The plasma transferred arc additive manufacturing system’s ability to produce large samples, compared with other common additive manufacturing techniques, makes it highly desirable in many...
Preparative chromatography is an indispensable separation process in the food, pharmaceuticals and fine chemical industry. The aim of this work is to summarize developments in preparative chromatographic processes in the period 2009– 2012. Particular attention is paid to new developments in the...