Brazing Metallurgies and Processes for Attaching Sintered Carbide Tiles - Year two

A two-year study on brazing technologies used for sintered tungsten carbide tiles is proposed to address the following technical objectives: 1) brazing metallurgy for sintered tungsten carbide and substrate high strength steel, 2) adherence mechanisms between different braze compositions and carbide tiles, 3) brazing parameters for optimized brazed joint performance, and 4) the mechanical stresses developed through the brazing process.

Studying the oxygenation of 3D printed pancreatic tissues

Most people with type 1 diabetes control their blood sugar levels through frequent blood glucose monitoring and insulin injections or infusion. Insulin therapy is life-saving but also life-altering and leads to decreased life expectancy. Instead, insulin-producing cells could be transplanted in devices which would prevent their rejection by the immune system. The design of these devices must take into account oxygen supply to the graft, which becomes more problematic in human-scale devices compared to studies conducted in animals such as mice.

A novel carbon dioxide redox flow battery: Stack design, modeling and performance testing

The world’s stringent need to transition to a low-carbon industrial economy is more pressing than ever and requires an ambitious departure from traditional processes through innovation, development and implementation of different breakthrough technologies within a strict timeline.

Comparative analysis of real-time weld quality monitoring camera systems working in visible, IR and NIR spectra

Real-time weld monitoring system helps prevent the rejection of large portions of defective welds. It is likely that monitoring camera systems that work in infrared light may be able to reveal some weld defects better than the visible light cameras. The project goal is to perform a comparative experimental study on the ability of the infrared and visible light cameras to detect weld imperfections. The partner organization for this project is Xiris Automation Inc., a company that produces real-time welding control and monitoring systems.

Evaluation of Treatment Processes for Greenhouse Wastewater Streams

The greenhouse industry constantly strives for innovative solutions to reduce production costs and environmental footprint. Greenhouses commonly generate process water including nutrient feedwater and other non-production wastewater. They also use fertigation, a soil-less drip irrigation method that requires large quantities of water and nutrients. Due to sharp reduction of available phosphorus (P), P recovery from wastewater streams is an economic opportunity.

Freeze purification of mine-impacted water: laboratory study and mathematical modeling

The project is dedicated to the investigation and testing of environment-friendly, energy-efficient freezing technology for the remediation of mine-impacted water. This technology could be beneficial and economically feasible for the regions with cold weather conditions and vulnerable to anthropogenic impact. The primary research objectives of current project are to continue and advance laboratory experiments started by Core Geoscience Services Inc.

Accelerated and sensitive detection of (bio)chemical analytes through active capture on Surface-enhanced Raman scattering (SERS) chips

Surface enhanced Raman scattering (SERS) is emerging as a promising technique for rapid, ultrasensitive and highly specific (bio)chemical detection. SERS has been successfully used for the detection of minute quantities of illicit drugs, food contaminants, environmental pollutants, even bacteria and viruses. Unfortunately, like most other surface-based detection methods, SERS also suffers from the same bottleneck, namely the slow transport of the target analyte from the bulk of the sample to the detection surface (also known as sampling).

Development of a polishing treatment process (PTP) for anaerobic digester centrate

The production of biogas via the anaerobic digestion of organic waste is a growing industry in Canada. One benefit of this approach is that the resultant organic waste (digestate) can be dewatered and used as fertilizer; however, the removed water fraction remains rich in organic compounds and must be adequately treated before being discharged from the plant, which can be quite costly.

Pilot Plant for Lithium Extraction from Saskatchewan Brine Deposits

With the growth in demand for electric vehicles and mobile devices powered by rechargeable lithium batteries, demand for lithium is expected to increase by over 200% in the next decade. Current lithium production comes primarily from Australia, South America and China. There are significant lithium reserves in the same Saskatchewan aquifers currently being exploited for their concomitant oil reserves.

Development of a UV-LED based surface disinfection system

Respiratory droplets of pathogens, such as SARS-CoV-2 in the current COVID-19 pandemic, spread not only from person to person via direct contact, but also indirectly via contaminated frequently touched surfaces. Ultraviolet (UV) radiation is known as the gold standard of disinfection technology, where the DNA of microorganism are damaged by high energy UV photons. The traditional method to produce UV radiation is using medium-pressure or low-pressure mercury lamps, which are bulky, high energy consuming, and not environmentally friendly.

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