In open pit mining, planning production phases, i.e. pushbacks, significantly affects the profitability. Generating practical pushbacks is a complex and time consuming task, mostly due to the difficulty of adhering to the geometric constraints of the mining operation such as the minimum width, the smoothness of the pit shell, and continuity of each pushback. A new method has recently been developed by our team that successfully integrates these constraints. The method modifies the infeasible pushbacks created by conventional methods to have feasible geometries.
The goal of this project is to develop the first ever high definition integrated water circulation and water quality model for the Toronto Waterfront. As one of the most urbanized freshwater ecosystems with complex geometries and physical processes, Toronto Waterfront is in an urgent need for modern scientific tools that can support effective environmental management strategies and inform design of costly new development and restoration projects that have considerable socioeconomic implications.
The objective of this project is to improve the communication between architects and wind engineers so that affects associated with wind such as pedestrian comfort, building strength and ventilation may be considered earlier on within the design phase of a project. By documenting the development of the invisible yet extremely prominent winds that flow through the intersection of Bay and King in Toronto, Ontario, I hope to apply and emphasize how key concepts of aerodynamics apply to a full-scale example that is relatable.
On the coast of British Columbia, both eelgrass meadows and Pacific salmon species are declining, yet eelgrass community dynamics and reliance of juvenile salmon on these communities are poorly understood. We will assemble the first large-scale dataset from monitoring efforts of coastal BC organizations in order to assess eelgrass community diversity and structure across environmental and human disturbance gradients (including boating, fishing, and non-native species).
Environmental modelling has been an indispensable tool of the Lake Simcoe restoration efforts. The proposed research aims to develop an integrated watershed-receiving waterbody modelling network that will provide a realistic platform for the evaluation of a variety of land-use management and climatic scenarios.
The Centre for Affordable Water and Sanitation Technology (CAWST) is a non-profit organization promoting appropriate technologies in water and sanitation for the developing world. An example is the biosand filter, currently manufactured by hundreds of organizations in 55 countries, and used by 650,000+ families. Ensuring filter quality will accelerate its dissemination worldwide. In this project, the quality assurance (QA) procedures are developed for (1) biosand filters (2) their construction processes, and (3) the distribution network, using Nepal as a case study.
The annual return of sockeye salmon to the Fraser River is a vital part of British Columbias environment, economy, and First Nations heritage. However, sockeye salmon can face numerous challenges during their migration including fisheries, warm water temperatures, and dams. Recent population declines in sockeye salmon have prompted concerns over the challenges salmon face during their migration and studies are needed to determine how the these challenges combine to affect salmon.
Full waveform inversion (FWI) is an inversion technique that uses least squares theory to compute a velocity model of the Earth that minimizes the difference between an acquired shot and a synthetic shot. The technique proved to be of hard usage in industry and the goal of the project is to research for solutions that allow the application on real seismic data. The gradient (direction of the model update) will be computed with the PSPI migration and the scale factor (for proper update) will be computed by least squares. The final implement is to apply it on elastic waves (real data).
The trees and plants also called urban forest in our cities help to absorb and evaporate rainwater. Since cities have a lot of surfaces that are impermeable, rainwater cannot infiltrate the soil and has to be moved away through pipe systems, carrying the pollution it collects on the surface. The urban forest is an important because it helps clean the water thought roots systems, and reduces the quantity of water that, during big storms, can fill water pipes and overflow.
Interspecies somatic cell nuclear transfer (iSCNT) is a promising technique whereby a bison donor cell is transplanted into a domestic cattle oocyte. Different fibroblast donor cells have been demonstrated to have different embryonic outcomes. Problems with SCNT embryos have been also reported after in vitro culture. Toronto Zoos efforts have focused on wood bison iSCNT, a threatened Canadian species, in order to conserve its germplasm.