Many of the energy assessment tools that exist today zero in on only one slice of the energy pie. They offer a granular analysis of solar, wind, or nuclear, but rarely look at multiple pathways together, which limits the ability of policymakers and industry professionals to see the real-time impacts of various technologies across the energy landscape as a whole. The immediate assumption is that these fixed pin garages and gates span a wide range of frequencies. For example, Wikipedia suggests these wireless devices span 300MHz - 400MHz, requiring us to send the same signal to 100 additional frequencies. However, after pulling the FCC docs of all of the fixed transmitters I could find, we see only a handful of frequencies are ever used, primarily 300MHz, 310MHz, 315MHz, 318MHz and 390MHz. Tapajyoti Ghosh came to MITEI for the opportunity to work on SESAME, which he sees as a groundbreaking environmental impact assessment tool that will help industry and policymakers. Photo: Kelley Travers Gençer spent almost a year assembling the perfect team of postdocs to help expand the tool. MITEI’s SESAME team is now about 20 people strong, including postdocs Arbabzadeh, Ghosh, and Goteti, plus a mix of undergraduates, graduate students, research scientists, and PhD candidates from across MIT.

If you did not just complete Steps 1-5 of section Explore the Open Sesame Lexical decision experiment, OpenSesame implements this algorithm to produce every possible overlapping sequence of 8-12 bits in the least amount of time. How little time? You'll find that virtually all of these transmitters use ASK/OOK to transmit. Additionally, many of the receivers support interoperability by using the same OOK signaling. This can be confirmed by testing several garage door openers, going over the FCC documents for several transmitters, and noting the supported models in various garage door openers. Encoders Ghosh earned his bachelor’s degree in chemical engineering in 2014 from Jadavpur University in Kolkata, India, after which he came to the United States for a PhD program at Ohio State University. Arbabzadeh is focused on using her experience to solve environmental challenges for the benefit of our planet and its future inhabitants. “During my master’s degree work, I learned about the negative environmental impacts of electricity production and wondered: ‘How can we improve this? I have the skills and knowledge, but how can I do more?’” adds Arbabzadeh. “Trying to solve these challenges is exciting for me. I think the energy sector is very important in terms of climate change, and the decarbonization of power production is an area where we can truly make a positive impact for future generations.”He came to MITEI for the opportunity to work on SESAME, which he sees as a groundbreaking environmental impact assessment tool that will help industry and policymakers. He hopes to return to India someday to become a faculty member at a university there. After getting my PhD at RIT, I really wanted to work on an interdisciplinary team that was focused on reducing carbon dioxide emissions by looking at multiple renewable energy pathways instead of just one,” she says. This quest led her to MITEI. It is interesting for me to develop a tool that can bring together all of these pieces from different sectors—power, transportation, et cetera—and that will allow policymakers and energy modelers to use the tool to do a system analysis for themselves,” she says.

Sustainable engineering focuses on trying to reduce negative environmental impacts that are caused by engineering processes not considering the external impacts of their activities,” he says. “I was interested in figuring out how we can make our engineering processes take environmental impacts into account during the design process while also helping industry make profits.” Naga Srujana Goteti’s journey to find a meaningful clean energy career led her to MITEI, where she is pleased to be part of an interdisciplinary team to work on SESAME. Photo: Kelley Travers The team is also working to incorporate other environmental impact categories in the model—beyond just greenhouse gas emissions, which is the tool’s current focus. They are hoping to include factors such as water impacts, air pollutants, and land use. I ghetto-rigged some wire to the test pads and superglued the ends to always connect properly to the GoodFET, but you can also use the GIMME from Michael Ossmann for a more convenient connector.I feel fortunate to have a peek into this very exclusive world. These kinds of opportunities—being able to engage with the world’s leading researchers, CEOs, et cetera—were just not available to me at my previous institutions,” says Ghosh. “The founder of Zipcar sits right across from my cubicle! There is a Nobel Prize–winning lab on the floor below ours.” Please give the following code: (Your House Number) (Your Birth Month, as two digits) (The last two digits of This information could help Norway and other oil and gas producers from around the world to learn about how they can reduce greenhouse gas emissions in their processes and associated systems. From left to right: Tapajyoti Ghosh, Naga Srujana Goteti, Emre Gençer (a MITEI research scientist and the SESAME team leader), and Maryam Arbabzadeh. Photo: Kelley Travers When asked how their roles work together, Arbabzadeh offers a deceptively simple explanation: “TJ is working on the framework and gives us direction in terms of what specific data the tool needs, and that’s what Srujana and I try to collect.”

Bottles – Again impossible due to my dexterity and grip – The tool is too big for me to be able to get a good grip As mentioned in the hardware section, we use GoodFET to load the code, and goodfet.cc specifically to load onto our Chipcon device (TI CC111x = Texas Instruments Chipcon111x) Ghosh would like to answer the questions he’s had since his childhood, first sparked by his visits to oil fields with his dad. “What’s going to replace the world’s dependence on fossil fuels? What is the cleanest form of energy that humans can depend on for a long amount of time? Is it going to be Tony Stark’s arc reactor or some nuclear fusion reactor like a tokamak, or just solar and wind, or some other miracle solution? I’m interested in answering futuristic questions like these,” says Ghosh.

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From there, she applied to multidisciplinary programs for her PhD, landing at the University of Michigan’s School for Environment and Sustainability to work on an energy storage project. Maryam Arbabzadeh received her bachelor’s in electrical engineering, with a focus on power systems, from Amirkabir University of Technology (formerly Tehran Polytechnic) in Iran. I use Travis Goodspeed's GoodFET device to program the IM-ME as he's built a tool to program it for us!