Research projects

  • Liability-driven investment strategy and portfolio immunization: a dynamical approach

    Dr. Alain Bélanger
    Miguel Moisan-Poisson
    Addenda Capital
    Finance
    Finance, insurance and business
    Université de Sherbrooke
    Accelerate

    Since the recent financial meltdown and because of the current economic instability, many fund managers tend to shift their total-return-oriented investment approach toward a liability-driven investment (‘LDI’) strategy. The main objective of such a strategy is to find investment portfolios that will match or outperform a liability stream (pensions, insurance claims, e tc.). In a previous Mitacs project in collaboration with Addenda Capital, we investigated two basic liability matching strategies: cashflow matching and moment matching. These strategies are now in use within funds managed by Addenda Capital. The main objective of the present project is to further enhance the two methods. The two LDI strategies are implemented by optimal selection of a portfolio of bonds (among a large universe of liquid bonds) that will best match the cashflows or the moments of the liability stream. With the passage of time the selected portfolio may no longer be optimal and may therefore require rebalancing. We propose to implement multi-stage algorithms where the optimization will take the expected re-balancing costs over time and over historical scenarios of yield curve movements into account and try to minimize them.  

  • Integrating data processing chains and performance evaluation of power line classification algorithms

    Dr. Gunho Sohn
    Yoonseok Jwa
    GeoDigital International Inc.
    Engineering, computer and electrical
    Energy
    York University
    Accelerate

    This project aims to conduct a comprehensive review of existing power line (PL) data processing procedure used in practice and to design and develop the new automatic workflow by integrating state-of-the-art algorithms with current data processing chain. This leads to the establishment of an innovative framework on automatic PL feature detection and reconstruction from LiDAR data. It will also result in a functional software module that can be demonstrated in a GUI and can be pluggable to other existing software packages. The expected benefit to the partner can be summarized as: (a) Efficiency-time and cost effective maintenance of PLs are possible by introducing automatic methods in a PL scene classification and modeling. (b) Accuracy – the proposed technique ensures that more accurate clearance quantity which threaten PL system sis determined. (c) Productivity – the new technique is expected to enhance the updating process of a geospatial database related to main features in PL corridor area. 

  • Dynamic model for lead cable of inconel self-powered neutron detectors

    Dr. Eleodor Nichita
    TBA
    Ontario Power Generation
    Physics and astronomy
    Energy
    University of Ontario Institute of Technology
    Accelerate

    CANDU reactors use a large number of self-powered, in-core flux detectors (ICFDs) for their reactor regulating system (RRS) and their two shutdown systems (SDS-1 and SDS-2). Dynamic characteristics of ICFDs and lead cables are very important to reactor control and safety. Although, to date, several studies have modeled dynamic characteristics of ICFDs and lead cables, additional effort is deemed necessary to model the dynamic response of lead cables, both at their beginning of life and as they age.

    The objective of the project proposal is to develop a dynamic model for the lead cables based on the physics of the neutron and gamma interactions contributing to the signal and to use the developed model to simulate previous experiments in Chalk River and observations at OPG.

    The ability to predict the characteristics of these lead cables at their beginning of life and as they age will benefit OPG’s ability to ensure safe operation of its reactors.  

  • Toward an understanding of how YB-1 regulates drug resistance in glioblastoma multiforme through epigenetic regulation governed by BMI-1

    Dr. Sandra Dunn
    Daniel Radiloff
    BC Children's Hospital/ Hannah's Heroes Foundation
    Medicine
    Life sciences
    University of British Columbia
    Accelerate

    Glioblastoma (GBM) is the most common and aggressive form of brain cancers and is the second most common cancer in children only behind leukemia. Conventional therapy consists primarily of surgery, radiation, and chemotherapy, and while these approaches have slightly improved the length of patient survival, there remains no cure for this disease. With the emerging understanding of biology in the process of cancer development, identification of therapeutic targets are being elucidated that will allow more targeted and effective treatment of the disease. This approach is especially important in pediatric brain cancer where conventional therapies may result in damage to the brain causing long-term neurocognitive deficits. We have identified one such target, a protein called the Y-box binding protein (YB-1) that is expressed in adult and pediatric GBM. In those cancer cells it promotes tumor cell growth and also drug resistance making it an attractive target for drug therapy. This project delves into a deeper understanding of how YB-1 controls drug resistance through its partnership with another protein, BMI-1, with the aim of increasing therapeutic efficacy. 

  • Adaptive operating room (OR) scheduling and control

    Dr. Barrie R. Nault
    Wei (Mike) Li
    Alberta Health Services
    Business
    Life sciences
    University of Calgary
    Accelerate

    McCaig Tower, as one of the largest sites of Foothills Medical Centre, provides the world’s safest and most accurate surgeries to patients, and a SmarTrack system, an interactive patient tracking system, helps the operating room (OR) management. However, due to the dependence of ORs on pre-operative preparations and post-operative capacities, the disturbances that come from patients and ORs themselves, and the lack of integration of healthcare systems with IE and MSc, the OR management in McCaig Tower is faced with difficulties in handling exceptions. Consequently, only manual adaptive control can be carried out by experienced nurses or directives for peri-operative (peri-op) activities. Such manual adaptive peri-op control is based on priority rules (some informal) and is not efficient in most cases, because of the limitation of information sharing for decision making. This project is to develop and implement OR scheduling and adaptive peri-op control to improve the response time and efficiency in the management/scheduling of ORs in McCaig Tower. 

  • Research on HTML5 security and solution

    Drs. Amir Hossein Banihashemi and Ioannis Lambadaris
    Yaser Eftekhari Roozbehani
    Irdeto Canada
    Engineering, computer and electrical
    Information and communications technologies
    Carleton University
    Accelerate

    The web browser is arguably the most security-critical component in our information infrastructure. Banking, social networking, shopping, navigation, and card payments – almost any activity you can imagine now takes place within a browser window. HTML5 is a potential candidate for changing our experience on the web and its sale on devices is forecasted to top one billion in 2013. Hence, at Irdeto, HTML5 and its implementation on different platforms is seen as a profitable business. On the other hand, HTML5 introduces new set of security vulnerabilities that cannot be easily addressed by existing security technologies. The main objectives of this research project are to identify and understand HTML5 security problems, investigate key security areas and develop possible security solutions. This project is meant to help Irdeto have a better position on HTML5 security and maintain its first rank in the online market business. 

  • Improving automatic calibration of computationally intensive groundwater models

    Dr. Bryan Tolson
    Saman Razavi
    Matrix Solutions Inc.
    Engineering, civil
    Construction and Infrastructure
    University of Waterloo
    Accelerate

    This research aims to develop advanced but practical methodologies for automatic calibration of computationally intensive groundwater simulation models. Such models are largely used in many consulting engineering companies, but they may not be completely calibrated because of the time limits and their very large computational demands. The methodologies developed during this internship increase the computational efficiency of automatic calibration algorithms by using domain specific knowledge in groundwater modelling. The general frameworks for these methodologies have been already developed in the intern’s PhD thesis and tested across different automatic calibration practices on other models such as surface water models. This internship benefits the model development practice in the partner organization as the modellers are provided with advanced tools and techniques to efficiently make use of their available computational budgets when developing and calibrating their models. The computational efficiency gains enable the modellers to develop more accurate groundwater models of the real-world systems of interest. 

  • Corporate behaviour and voluntary energy programs: influences on voluntary participation.

    Dr. Ronald Pushchak
    Catherine Mulé
    Hydro One Networks
    Operations research
    Finance, insurance and business
    Ryerson University
    Accelerate

    The purpose of this research is to reveal the factors that motivate firms to participate in voluntary energy programs, with reference to the Building Owners and Managers Association (BOMA) of Toronto Conservation and Demand Management (CDM) Program. The program directed incentive funds to reduce electricity demand in large Toronto commercial buildings and provided a $60 million subsidy for building owners and tenants to conduct energy conservation projects. The study will examine whether the subsidy was the primary motivator in a company's participation, or whether there were other underlying influences, such as public recognition/publicity, competitive advantages; to strengthen a company’s environmental practices; or to improve stakeholder relations. The results will aid Hydro One in determining the strengths and weaknesses of this particular energy program and may offer solutions in the improvement of current or existing voluntary CDM programs. 

  • Fast approximate simulation of complex structures and contact in immersive virtual environments

    Dr. Paul Kry
    Sheldon Andrews
    CM Labs Simulations Inc.
    Computer science
    Aerospace and defense
    McGill University
    Accelerate

    Development of a technology that will optimize the simulation of complex mechanisms and the contacts between those mechanisms. For instance, the simulation of human or robotic hand grasping of an object involves complex contacts between mechanisms and objects. This proposed project would develop a technology that would improve the stability and performance of simulated interaction of virtual vehicles and robots in immersive virtual environments aimed at mission planning and operator training. 

  • Multiphase and multiphysics CFD modeling of a gasifier and a 3 phase reactor for Enerkem technology

    Dr. Jean-Michel Lavoie
    Micael Boulet
    Enerkem
    Engineering, chemical and biological
    Energy
    Université de Sherbrooke
    Accelerate

    Thanks to its technological platform, Enerkem provides a green and sustainable solution to address the challenges of oil dependence and waste disposal. The solution put forward is biofuels production from municipal solid waste. The heart of this technology is based on processes demanding high control of complex physics including fluid flow and thermochemical reactions. Seeking to improve understanding and performance of two key units, a gasifier and a catalytic reactor, the current research project will perform modeling based on CFD (Computational Fluid Dynamics) method. Navier-Stokes equations will be coupled with granular eulerian and lagrangian model to account for multiphase flow. Additionally, heat transfer and chemical reaction will be considered. These simulations will be conducted on supercomputers and results will be used to optimize the process.  

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