Dual-fuel diesel-natural gas engines have the potential to be an economical and low-emission alternative for heavy-duty transport applications. These engines combust pre-mixed natural-gas/air mixtures by ignition with a pilot injection of diesel fuel. The fraction of energy provided by each fuel can be varied for engine operating conditions. Natural gas is less expensive than diesel so higher amounts of natural gas is generally preferred. However, if natural gas substitution rates become too high (e.g.
A veneer wythe protects the indoor environment and other building components against adverse outdoor effects, such as rain and physical impacts. Veneer walls are connected to a structural substrate (e.g. wood frame or masonry units) by ties. These are usually made of steel and therefore high in thermal conductance. The ties penetrate the thermal insulation layer between the veneer and structural substrate and hence act as uniformly distributed point thermal bridges. In conventional thermal analysis, their presence is usually neglected.
Opioids have received much attention in the media, public and government because of the risks associated with them, including fatalities. Concurrent use of BZRAs (benzodiazepines used for treating anxiety and insomnia) and opioids is of particular concern because this is a recognized risk factor for fatal opioid overdoses. Despite this warning, concurrent use is still occurring. An outcome study using Alberta data on concurrent use has not been published in the literature.
This project explores how one congregate living environment in Edmonton Alberta supports their residents through the use of the material environment including designed spaces and objects created by architectural and interior designers. The web of person-environment relationships and interactions that is complicated, dynamic, messy, and riddled with shifting agency is unpacked revealing how humans depend on things, things depend on things, and things depend on humans.
Occupying the large tailings ponds is the most significant environmental issue for oil sand conventional extraction process. Making Green Ceramic/building materials is the most promising method to reduce the size of tailings ponds. This not only leads to consumption of tailings but also results in valuable products for the construction industries.
Canada Pump & Power (CPP) is an Alberta specialized industrial marine company. CPP has a novel proprietary dredge propulsion method based on a set of winch-driven cables: the patented Autonomous Mighty Dredge. Control strategies to date have delivered adequate performance in some operating conditions; the goal is to have the dredge capable of performing to a slurry rate specification under automatic control in a wide range of operating conditions (variable deposits, density, obstacles).
Lending to various companies and individuals is a core business of banks. This lending activity comes with credit risk, namely the risk that some borrowers default and fail to make required payments. Estimating credit risk accurately is important for banksâ risk management. In this project, we analyze and model the dependence between loss frequency and loss rate of defaulting customers. The reason for the dependence comes from the underlying economic cycle: in an economic downturn, losses occur both more frequently and more severely than in an economic boom.
The project looks to explore the trends and directions of the labor market in the recreation, sport, and leisure industry for the Province of Alberta. Within this 6-month project, a review of the current literature in the human resource area of the field will be undertaken along with look at the current and past trends of the labor market within the province.
Child sexual abuse (CSA) is an all too prevalent form of childhood trauma worldwide. Nearly 1 in 5 women and 1 in 10 men experience some form of abuse in their childhood. CSA has been linked to numerous long-term effects: PTSD, depression, anxiety, substance abuse, eating disorders, sexual dysfunction, suicidal ideation, and cognitive impairment. Growing awareness of the problem has led more individuals to seek professional treatment. At present, there is no gold-standard for CSA treatment, particularly in youth.
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.