Role of Dissolved Oxygen Concentration on Gold Recovery from Sulphide Ores via Cyanidation and Thiosulphate Leaching Processes

The proposed research project pertains to the analysis and understanding of the role of oxygen in gold extraction and recovery process. Currently most gold mining operations apply air in their gold recovery process, but there are some data showing that the gold recovery with air application is not efficient. It is believed that the use of oxygen gas would result in higher gold recovery and ultimately lower costs. Also we believe the application of oxygen gas instead of air would minimize or eliminate the need for addition of lead nitrate into the gold recovery process solutions.

Game private networks and game server performance emulation and evaluation

This infrastructure will allow new servers to be automatically deployed and configured for use as private game servers, while also monitoring their performance and usage statistics. By using the novel predictive models, which are to be developed in this proposed project, new virtual servers will be automatically created and added when the traffic levels require more resources to maintain optimal performance. The goal of these network tests is to identify the point at which the network software can no longer keep up to the flow of traffic.

Heap leaching of refractory gold ore by integrating enhanced bio-oxidation of pyrite and chloride-based gold leaching

Gold occurs in association with pyrite and arsenopyrite in the Carlin-type gold deposit, with little gold being contained in carbonaceous materials. Extracting this gold requires pretreatment, such as pressure oxidation or roasting, to remove carbonaceous materials and sulphides, followed by the application of alkali cyanide or thiosulphate solution to leach gold. These processes are energy-intensive and may generate potentially harmful substances to the environment.

Investigations in real-time spinal magnetometry using magnetoencephalography (MEG) for therapeutic biofeedback

Oscillatory neuronal activity can be quantified to help diagnose states of health and disease in the brain. These activities change on a fast time scale of milliseconds, which can only be captured by direct measurement of the brain’s electromagnetic activity. This is accomplished utilizing MEG and EEG technology, which can measure non-invasively these fast changes on the scalp surface. Moreover, using MEG, these signals can be observed within the brain volume through a localization process.

Optimizing Natural Fibre Quality for Industrial Applications

Natural fibres are abundant in Canada and have the potential to be used in a wide variety of biocomposites and industrial bioproducts. In order to develop a thriving biomaterials sector, the quality and consistency of this vast resource must be continually assessed and monitored to ensure a quality product can be delivered to end-users on a consistent basis.

Optimization of Hetnets for Urban and Built-up Environments

The provisioning of cellular networks and data services has become increasingly complex due to ever increasing demand for greater and faster services. Our research will contribute to a fundamental knowledge base into the operation of heterogeneous cellular networks using the built-up physical infrastructure (the buildings) of the University of Regina. A number of micro cellular sites have been installed on campus and their operation has been investigated within the larger macro cellular site which services the university and surrounding area.

Visualization of TBI Multimodal Brain Imaging Data

The increased incidence of traumatic brain injury (TBI) and its potentially serious long-term consequences have enormous clinical, societal and economic impacts in Canada. Yet despite its relatively high prevalence, TBI is one of the least understood neurological injuries. Emerging evidence shows that the effects of TBI are not transient and may be associated with significant long-term consequences on brain function. An impact to the head results in an immediate and direct insult to the brain, setting off a complex cascade of metabolic and neurochemical events.

Development of Li-Ion cells/batteries for low temperature applications

Increases in gasoline price and greenhouse gas emissions have spurred the growth of hybrid electric vehicles (HEV) and pure electric vehicles (EVs). Rechargeable Li-ion batteries are the leading candidate for powering these vehicles due to their high energy and power density properties relative to other batteries. However, their energy and power capabilities are substantially reduced at low temperatures, posing a technical barrier for market penetration of HEVs and EVs.

Calibration and characterization of micro-spectrometer

Project will see the calibration and characterization of a next-generation spectrometer for advancing both atmospheric research and the Canadian space community by providing instruments for atmospheric research for UAVs and nanosatellites. Calibrating these spectrometers will give the science community a new way to monitor atmospheric gases such as greenhouse gas or pipeline leaks with the option of a low-mass, low-cost and reliable measurement from an airborne platform.

Sulfur deportment in ferronickel production via Rotary Kiln-Electric Furnace process

Pyrometallurgical processes have long been used for producing ferronickel alloy. Rotary kiln – Electric furnace (RKEF) is one of the most important technologies for producing ferronickel. The process involves partial reduction of the ore in the rotary kiln with the addition of fuels and reductants. During the process, some impurities present in the fuels and reductants are introduced to the rotary kiln product (clacine). The presence of impurities, especially sulfur would significantly affect physical and mechanical properties of product.