Intensity-modulated radiation therapy (IMRT) is an advanced cancer treatment technology that uses beams of high energy x-rays to deliver radiation to a tumour.  In IMRT, radiation beams are divided into many small beamlets, whose intensities are individually adjusted in order to deliver a dose of radiation that conforms to the shape of the tumour.  The […]

Our laboratory is interested in developing imaging software and instrumentation that will allow us to measure the spatial dynamics of growing neuronal structures in a small, transparent, model organism called C. elegans. C. elegans is a small nematode (round worm) with a uniquely simple nervous system—it contains only 302 neurons and the connectivity between these […]

The objective of this project is to design and implement digitally controlled high efficiency DC-DC switching converters suitable for VLSI power management applications. The main challenge in this work is to develop a robust power management scheme to dynamically vary the supply voltage as a function of varying clock frequency for the VLSI chip. The […]

This project consists of two parts: the synthesis of a variety of nanoparticles using a technique we have developed recently, and the study of individual nanoparticles to examine their properties and polydispersity. Both parts carry major challenges and present unique opportunities for research. The eventual goal of our program is to be able to design […]

Cognitive radio networks are fundamentally different from traditional cellular networks because multiple competing service providers simultaneously co‐exist in the same wireless spectrum. Service providers can significantly increase the network capacity by deploying dynamic resource allocation algorithms that are robust to time‐varying and uncertain environments as well as the actions of other, possibly selfish entities. The […]

This research project looks to develop computer programs which will enable the study of reactive flows and combustion processes in gas turbine engines. Combustion is inherently a multi-scale process that involves a wide range of complicated physical/chemical phenomena, as well as a wide range of spatial and temporal scales. Due to the limits on available […]

Wind Power Generation is one of the major sources for clean energy around the world in the industrialized countries or regions.  It is well known that the WPG has the following characteristics: the input is uncertain; the volatility is high with jumps and lags; the correlation between its output and demand is most likely zero; […]

For the past decade, I have been researching new types of biofilters for treatment of livestock odours.  Although I anticipate the fabrication of a prototype biofilter by April 2011, I do not expect the design team to have time to evaluate the functioning of the biofilter.  It is my intention to recruit a student during […]

Our overall project objective is to determine factors to optimize removal of nutrients and organic micropollutants (e.g., pesticides, and pharmaceuticals and personal care products aka “drugs”) in rural municipal sewage lagoons, through manipulative experiments with bench-scale and field-scale constructed wetlands.  This work will provide sound science on how best to remove such contaminants from wastewaters […]

It has been a common practice to discharge water, wastewater and industrial effluents into open channels such as rivers and streams.   Such discharges, in the form of jets, often enter shallow bodies of water typically found in rivers and coastal bays.  In contrast to the existing body of knowledge on unconfined turbulent jets in which […]

The exponential growth in high-bandwidth applications and devices used in backbone networks has been accompanied by a corresponding increase in power consumption, and there is a growing recognition of the need to be more energy efficient [1].The proposed research project will investigate a number of techniques for energy-efficient optical network design. These include: Applying traffic […]

Planning of medical procedures, such as radiation therapy or minimally invasive interventions, almost always require delineation of organs and other important structures by closed curves. Most frequently this is performed manually, by drawing contours around the objects on several two-dimensional cross-sectional images. Typically the contours change smoothly between adjacent image slices, therefore it could be […]