Posts Tagged: capstone design course

Meet our alumni: Nathalin Moy (EngSci 1T6+1), energy policy analyst

Nathalin Moy

Nathalin Moy (EngSci 1T6+1) uses her engineering knowledge to help design public policy. (Photo courtesy of Nathalin Moy)


Technology does not exist in a void. To have a meaningful impact on society, its creators must consider social, cultural, and ethical impacts. New technological developments must also work within economic and legal constraints, and can inform government policy decisions.

No one knows that better than Nathalin Moy (EngSci 1T6+1), who graduated from EngSci’s Energy Systems Engineering major.  She combines her engineering education with public policy training in her work as a policy analyst as part of the Canada Energy Regulator (CER) Regulatory Policy team at Natural Resources Canada.

Moy helps guide the implementation of the Canadian Energy Regulator Act, which governs projects as diverse as interprovincial and international pipelines and powerlines, energy exports, oil and gas exploration, and offshore renewable energy.

Her interest in public policy was sparked in a third-year course on energy policy, but really took hold in her final year in EngSci.

Bridging the gap

Policy decisions, especially around energy, must be made with input from diverse stakeholders: technical experts, government policymakers, the general public, and others. One of the challenges for engineers is learning how to communicate complicated technical issues to audiences that may not have a technical background and—just as importantly—how to listen to perspectives they may not have considered.

Moy identified this gap in her fourth-year thesis project—The Engineer’s Role in Climate Change Policy—which applied an engineering approach to a qualitative research question.

Sparked by the 2016 launch of the Canadian climate change action plan, Moy investigated the role engineers can play in climate change policy. Through literature reviews and interviews with engineering, policy, and climate change experts she developed a conceptual model of the relationships between the various stakeholders involved. She identified a historical lack of involvement of engineers in shaping public policy, despite their relevant technical expertise. To encourage more engineers to step into the policy arena, she suggested education reform to help teach engineers the skills needed to engage in public policy processes.

“My thesis was a pivotal experience that prompted me to take the leap into public policy,” says Moy. “It also served as the motivation for my fourth-year capstone project—it’s the ‘why’ where the capstone work was the ‘how’.”

In her capstone design project, Improving Engineering Student Engagement in Energy Policy, Moy created a public policy assignment for third year courses that brought together U of T Engineering students and public policy students from the Faculty of Arts & Science to learn from each other’s expertise. Interdisciplinary student teams wrote briefing notes for hypothetical government representatives based on current energy policy issues. While the engineering students learned how to better communicate technical issues, the public policy students learned about the technical constraints that must inform policy.

Moy’s work helped both groups of students develop a better mutual understanding of the challenges on all sides of public policy.

Helping engineers consult the public

Moy continued delving into these interdisciplinary topics as a Master’s student in the Sustainable Energy Engineering and Policy program at Carleton University. Her thesis, titled An Engineer’s Guide to Public Engagement in Renewable Energy Projects, examined how public engagement relates to technical design in renewable energy projects.

Moy’s thesis includes eight guidelines to help engineers better incorporate public engagement into their work. She hopes that her work will help engineers create more effective public engagement, and may even inform new policies.

“In making the transition from engineering to public policy, the biggest revelation for me was that the approach to problem solving is basically the same,” says Moy. “There is an engineering design cycle, and there is a policy cycle. Both start with identifying a problem and go through a systematic process that ends with implementing a solution.”

A powerful combination

Moy sees the particular strengths of an academic background that combines technical engineering knowledge with policy. Many of the most serious problems we face today, like climate change, are too complex to be addressed by technology alone. “The grand scale behavioural change that needs to occur cannot happen without policy intervention,” says Moy. “To this end, neither an engineering degree without an understanding of the policy context, nor a policy degree without an understanding of the technical nature of the issue, can effectively tackle the problem at hand.”

Professor Aimy Bazylak, who serves as EngSci’s associate chair and the chair of the energy systems major, has seen a shift in expectations around how engineers engage with society to protect the public and ensure ethical conduct. “More than ever, we absolutely must take our impact on society into consideration, which can only be done by listening to a diverse community of voices,” says Bazylak. “I’m particularly inspired by graduates like Nathalin who are driven to create a sustainable society—at home and internationally.”

Moy’s involvement in social science disciplines exemplifies a common trait among EngSci students who often have multidisciplinary interests. She also credits her time in EngSci for helping to prepare her for her current job as part of a small team working on many different projects. “This position appeals to me in the same way that EngSci did,” says Moy. “There’s a good balance of breadth and depth that allows me to be a subject matter expert and yet understand and contribute to other related files going on around me.”

Meet more EngSci alumni.

Student-designed tool to help cancer patients wins John W. Senders Award

EPICSpeech team photo

The members of the EPICSpeech team, from left to right: Betty Liu, Charlie Yang, Sulagshan Raveendrakumar, Jacob Smith and Netra Unni Rajesh (Photo courtesy EPICSpeech team)


A flexible plastic plate dotted with electrodes may not seem like something that belongs in a human mouth, but this student-developed device could help give some cancer patients back the ability to speak or swallow.

The innovative team behind the device are recent graduates Betty Bingruo Liu, Netra Unni Rajesh, Sulagshan Raveendrakumar, Jacob Smith, and Seung Doo (Charlie) Yang (all EngSci 1T9 PEY). Now their work has been recognized with the prestigious John W. Senders Award for Imaginative Design, which is presented to Year 4 University of Toronto engineering students for imaginative and successful application of engineering to the design of a medical device. The award is named after human factors and ergonomics pioneer Professor John W. Senders.

The team took on a challenge presented to them in EngSci’s biomedical systems capstone course by doctors from the Toronto General Hospital (TGH) Department of Head and Neck Cancer Surgery. For 17,000 Canadians diagnosed with tongue cancer every year, treatment often includes surgery to remove part of their tongue. This can leave patients with significant speech and swallowing impairment.

In rehabilitation, speech pathologists use electropalatography (EPG) devices to detect abnormalities in tongue motion and prescribe specific exercises to help restore functionality. Existing EPG devices are custom-made for each patient with 62 hand-wired electrodes, making them expensive and out of reach for many. The many electrodes also create a tangle of wires that impedes natural tongue movement and causes discomfort during exercises.

To address these limitations, the students created the EPICSpeech device (Electropalatography with Programmable Integrated Circuits for Speech Rehabilitation).

EPICSpeech device schematic

Overview of the EPICSpeech device. (Image courtesy of EPICSpeech team)

The team was inspired by the use of flexible printed circuit boards (PCBs) in medical applications such as diagnostic catheters and blood glucose monitors. Instead of a hard custom-fitted mouthpiece, EPICSpeech uses a flexible PCB that can be easily and cheaply mass produced. It allows the device to conform to the shape of a patient’s palate comfortably.

By embedding an internal processor and half as many electrodes as existing devices, the team also reduced the number of wires exiting from the patient’s mouth from 62 to just 8. “The key design feature was optimizing the number electrodes while giving users enough information to understand where their tongue is moving,” says capstone course instructor Professor Chris Bouwmeester. The smaller number of wires allows patients to move their tongue more naturally during exercises.

In collaboration with Dr. Douglas Chepeha, Dr. Majd Al-Mardini, and James Kelley from the TECHNA Institute, and Carly Barbone from Toronto Rehab at the University Health Network, the team also worked to meet the tough performance and safety requirements of medical devices. “The hardest part was integrating complex electrical components with a biocompatible base to fit safely in the mouth,” says Smith. “Many materials used in circuits are not biocompatible. We learned quickly how much work it is to combine electrical and biomedical components so they work within the mouth when covered with saliva.”

The project drew on knowledge the students had gained throughout their studies, Including engineering design, hardware circuits, programming, prototyping, biomaterials and biological assays. “This project is a great example of the power of multidisciplinary collaboration,” says Bouwmeester. “With a mix of students from EngSci’s electrical & computer engineering and biomedical systems engineering majors this team was able to achieve more advanced electrical hardware design and biological testing than a single discipline team would have.”

The resulting design is easier and cheaper to manufacture, can help speed up patient recovery, and can even help guide surgeons to better reconstructions. “This device has the potential to revolutionize rehabilitation of oral cavity patients,” says Dr. Chepeha. “It will help patients speak and eat after cancer treatment so they can go back to work and interact in society.”

Dr. Chepeha and his colleagues plan to continue working with EngSci students to test the device in patients and develop a wireless blue tooth interface to eliminate wires protruding from the mouth. They hope ultimately to license the device for distribution and support a speech and language pathologist to continue research on this innovative technology.

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