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image of prof Boris Murmann
May 2021

Congratulations to Professor Boris Murmann for receiving the 2021 Semiconductor Industry Association (SIA)-SRC University Researcher Award. Award winners are selected by SRC members who truly recognize great contributions to the semiconductor industry.

Source: src.org/award/university-researcher/

The SIA University Research Award was established in 1995 by the Semiconductor Industry Association (SIA) to recognize lifetime research contributions to the U.S. semiconductor industry by university faculty.

Please join us in recognizing Boris for his significant contributions in the semiconductor industry.

 

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image of prof Subhasish Mitra
May 2021

Congratulations to Professor Subhasish Mitra for receiving the 2021 Semiconductor Industry Association (SIA)-SRC University Researcher Award. Award winners are selected by SRC members who truly recognize great contributions to the semiconductor industry.

Please join us in recognizing Subhasish for his significant contributions in the semiconductor industry.

 

The SIA University Research Award was established in 1995 by the Semiconductor Industry Association (SIA) to recognize lifetime research contributions to the U.S. semiconductor industry by university faculty.

Source: SRC.org/award/university-researcher

 

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image of prof Eric Pop
May 2021

A team of Stanford researchers including EE Professor Eric Pop report the design and fabrication of single-wall carbon nanotube thermoelectric devices on flexible polyimide substrates as a basis for wearable energy converters.

source: ScienceDaily.com [...]
Inspiration came from a desire to ultimately fabricate energy converting devices from the same materials as the active devices themselves, so they can blend in as an integral part of the total system. Today, many biomedical nanodevices' power supplies come from several types of batteries that must be separated from the active portion of the systems, which is not ideal.

In Applied Physics Letters, the researchers report the design and fabrication of single-wall carbon nanotube thermoelectric devices on flexible polyimide substrates as a basis for wearable energy converters.

"Carbon nanotubes are one-dimensional materials, known for good thermoelectric properties, which mean developing a voltage across them in a temperature gradient," said Professor Eric Pop. "The challenge is that carbon nanotubes also have high thermal conductivity, meaning it's difficult to maintain a thermal gradient across them, and they have been hard to assemble them into thermoelectric generators at low cost."

The group uses printed carbon nanotube networks to tackle both challenges.

Professor Pop continued, "For example, carbon nanotube spaghetti networks have much lower thermal conductivity than carbon nanotubes taken alone, due to the presence of junctions in the networks, which block heat flow. Also, direct printing such carbon nanotube networks can significantly reduce their cost when they are scaled up."

Thermoelectric devices generate electric power locally "by reusing waste heat from personal devices, appliances, vehicles, commercial and industrial processes, computer servers, time-varying solar illumination, and even the human body," said Hye Ryoung Lee, lead author and a research scientist.

"To eliminate hindrances to large-scale application of thermoelectric materials – toxicity, materials scarcity, mechanical brittleness – carbon nanotubes offer an excellent alternative to other commonly used materials," Lee said.

The group's approach demonstrates a path to using carbon nanotubes with printable electrodes on flexible polymer substrates in a process anticipated to be economical for large-volume manufacturing. It is also "greener" than other processes, because water is used as the solvent and additional dopants are avoided.

Excerpted from "Nontoxic, flexible energy converters could power wearable devices" April 27, 2021

 

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image of LaToya Powell, graduate admission officer
May 2021

LaToya Powell, Graduate Admissions Officer for Electrical Engineering is featured in a Stanford School of Engineering Spotlight article.

LaToya is a tireless advocate for our students and is very passionate about diversity and inclusion. She founded EE's dEEbug program for EE students to receive support academically and socially. 

LaToya received the 2020 Staff Award for Innovation and has been recognized for going above and beyond in her daily role. In addition to managing EE's graduate admissions and playing an active role in the programs and student groups, she has also served on EE's Culture, Equity, and Inclusion (CEI) Committee.

 

Please join us in acknowledging LaToya for her exceptional work in the department; we are fortunate she is part of EE.

 

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image of PhD candidate Riley Culberg
April 2021

Research by EE PhD candidate Riley Culberg and Prof. Dustin Schroeder is revealing the long-term impact of vast ice melt in the Arctic.

Using a new approach to ice-penetrating radar data, researchers show that this melting left behind a contiguous layer of refrozen ice inside the snowpack, including near the middle of the ice sheet where surface melting is usually minimal. Most importantly, the formation of the melt layer changed the ice sheet's behavior by reducing its ability to store future meltwater. The research appears in Nature Communications.

"When you have these extreme, one-off melt years, it's not just adding more to Greenland's contribution to sea-level rise in that year – it's also creating these persistent structural changes in the ice sheet itself," said lead author Riley Culberg, EE PhD candidate. "This continental-scale picture helps us understand what kind of melt and snow conditions allowed this layer to form."

Airborne radar data, a major expansion to single-site field observations on the icy poles, is typically used to study the bottom of the ice sheet. But by pushing past technical and computational limitations through advanced modeling, the team was able to reanalyze radar data collected by flights from NASA's Operation IceBridge from 2012 to 2017 to interpret melt near the surface of the ice sheet, at a depth up to about 50 feet.

"Once those challenges were overcome, all of a sudden, we started seeing meltwater ice layers near the surface of the ice sheet," EE courtesy professor, Dustin Schroeder said. "It turns out we've been building records that, as a community, we didn't fully realize we were making."

Melting ice sheets and glaciers are the biggest contributors to sea-level rise – and the most complex elements to incorporate into climate model projections. Ice sheet regions that haven't experienced extreme melt can store meltwater in the upper 150 feet, thereby preventing it from flowing into the ocean. A melt layer like the one from 2012 can reduce the storage capacity to about 15 feet in some parts of the Greenland Ice Sheet, according to the research.

 

 

Excerpted from "Stanford researchers reveal the long-term impacts of extreme melt on Greenland Ice Sheet", Stanford News, April 20, 2021

April's outstanding EE staff!
April 2021

Congratulations to these outstanding staff: Thomas Carlson, Marisa Cheng, Julie Kline, Kara Marquez, Edwin Mendoza, and Denise Murphy!

They received nominations from faculty, staff and students, who appreciate their commitment and willingness to go above and beyond the ordinary. Excerpts from their nominations are below.

Our staff gift card recipients make profound and positive impact in the electrical engineering department's everyday work and academic environment. Please take a moment to congratulate them personally.

 

Thomas Carlson, System and Network Development Management/System Administrator/Developer

  • Thomas is very helpful, knowledgeable, and easy going.
  • He always provides first class IT support.

Marisa Cheng, Academic Affairs & Programs Administrator

  • Marisa always works extremely hard; during COVID, she adapted all our course changes superbly.
  • She shines like a star!

Julie Kline, Faculty Administrator

  • Julie is highly responsive and consistent in dealing with a myriad of tasks.
  • She communicates extremely well and is a joy to work with.

Kara Marquez, Faculty Administrator

  • Kara's vast knowledge and resourcefulness helps us stay organized and deal with any issues.
  • Our lab group knows that we are very fortunate to work with her.

Edwin Mendoza, Faculty & Staff Affairs Administrator

  • Edwin is incredibly detail-oriented and thorough; he always provides all supporting documents, which saves tons of time.
  • He also has taken the initiative to transition to new updates and guidelines, ensuring smooth running for the department.

Denise Murphy, Faculty & Staff Affairs Manager

  • Even during COVID, Denise has been her usual, unflappable self. More than once she has made herself available to spontaneously join meetings to talk about various topics.
  • She always does a great job getting people together and learning about one another. I miss interacting with her in person, but I always look forward to seeing her via Zoom.

 

The Staff Gift Card Bonus Program is sponsored by the School of Engineering. Each year, the EE department receives several gift cards to distribute to staff members who have been recognized for going above and beyond their role. Staff are chosen from nominations received from faculty, students, and staff. Past nominations are eligible for future months.

Nominate a deserving staff person today. Each recipient receives a $50 Amazon gift card. Nominations can be made at any time. There are no restrictions on the quantity or persons that you can nominate!

Submitters are asked to include a citation of how the person went above and beyond. The submitter can choose to remain anonymous. Nominate now

 

image of April's EE staff awardees

*Some photos were taken from our photo library and are pre-Covid.

image of prof Shanhui Fan
April 2021

Professor Shanhui Fan presented his latest advances in radiative cooling at annual energy sector conference. Shanhui's radiative cooling harvests electricity from the coldness of the universe, which in turn, can be harvested on Earth for several renewable energy applications. For millennia, humans in regions where the ambient temperature never falls below freezing have used the concept to make ice by burying water at night.

Radiative cooling could have a significant impact on lowering electricity use and boosting output of renewables, but it will require advances in blackbody emitters, materials that absorb heat and radiate the heat at frequencies that send it into space.

"This requires a good blackbody emitter," said Shanhui, "but we can cool objects to a temperature 13 degrees Celsius (55 degrees Fahrenheit) below the ambient temperature with no electricity; it's purely passive cooling."

Radiative cooling systems could, for example, reduce the electricity required for air conditioning by 10 percent to 15 percent, he said. Such systems at night could also generate enough electricity for LED lighting in homes, which would be a significant development for the billion humans without electricity.

 

Other Stanford faculty research presented includes,

  • Professor Yi Cui, discussed new horizons for energy and climate research as part of a panel. To Cui, the big issue is energy storage to enable greater use of intermittent solar and wind power.
  • Professor Reihold Dauskardt's Spray-on Solar cells
  • Professor Arun Majumdar discussed gigaton-scale solutions for getting to zero greenhouse gas emissions globally from human activity.

 

Excerpted from Precourt Institute "Stanford at CERAWeek: energy storage, net-zero GHG, radiative cooling and perovskite solar cells"

 

Related News

prof Kunle Olukotun
April 2021

Professor Kunle Olukotun has built a career out of building computer chips for the world.

These days his attention is focused on new-age chips that will broaden the reach of artificial intelligence to new uses and new audiences — making AI more democratic.

The future will be dominated by AI, he says, and one key to that change rests in the hardware that makes it all possible — faster, smaller, more powerful computer chips. He imagines a world filled with highly efficient, specialized chips built for specific purposes, versus the relatively inefficient but broadly applicable chips of today.

Making that vision a reality will require hardware that focuses less on computation and more on streamlining the movement of data back and forth, a function that now claims 90% of computing power, as Kunle tells host Russ Altman on this episode of Stanford Engineering's The Future of Everything podcast. 

 

 

Source: The Future of Everything Series, "Kunle Olukotun: How to make AI more democratic"

image of prof Nick McKeown
March 2021

Later this year, in a lab in the Durand Building, a team of researchers will demonstrate how a tight formation of computer-controlled drones can be managed with precision even when the 5G network controlling it is under continual cyberattack. The demo's ultimate success or failure will depend on the ability of an experimental network control technology to detect the hacks and defeat them within a second to safeguard the navigation systems.

On hand to observe this demonstration will be officials from DARPA, the Defense Advanced Research Projects Agency, the government agency that's underwriting Project Pronto. The $30 million effort, led by Professor Nick McKeown, is largely funded and technically supported through the nonprofit Open Networking Foundation (ONF), with help from Princeton and Cornell universities. Their goal: to make sure that the wireless world – namely, 5G networks that will support the autonomous planes, trains and automobiles of the future – remains secure and reliable as the wired networks we rely on today.

This is no small task and the consequences could not be greater. The transition to 5G will affect every device connected to the internet and, by extension, the lives of every person who relies on such networks for safe transportation. But, as recent intrusions into wired networks have shown, serious vulnerabilities exist.

The pending Pronto demo is designed to solve that problem by way of a fix that McKeown and colleagues have devised that wraps a virtually instantaneous shield around wirelessly accessible computers using a technology known as software-defined networking (SDN).

 

Excerpted from "A new Stanford initiative aims to ensure 5G networks are reliable and secure", Stanford News, March 24, 2021.

 

RELATED

 

image of PRONTO members

 

 

image of LaToya Powell, graduate admission officer
March 2021
Congratulations to LaToya Powell, Graduate Admissions Officer. She has been awarded the 2020 School of Engineering Staff Award for Innovation
 
LaToya is recognized for her achievements in the creation of the dEEbug peer tutoring program that started Autumn 2020. The program offers peer tutoring to current and prospective undergraduates in electrical engineering. The program's goal is to provide a welcoming and supportive environment for all students, especially those from underrepresented groups. In addition to the dEEbug program, she also helped our students create a new student group called SURG(E)2, which stands for Students for Underrepresented Groups in Electrical Engineering.

LaToya is a tireless advocate for our students and is very passionate about diversity and inclusion.  In addition to managing EE’s graduate admissions and playing an active role in the programs and student groups, she has also served on EE's Culture, Equity, and Inclusion (CEI) Committee. We thank LaToya for her dedication to students and for all of her contributions to our department.

 
Please join us in congratulating LaToya on this very well deserved award!

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February 2014

Three staff members each received a $50 Visa card in recognition of their extraordinary efforts as part of the department’s 2014 Staff Gift Card Bonus Program. The EE department received several nominations in January, and nominations from 2013 were also considered.

Following are January’s gift card recipients and some of the comments from their nominators:

Ann Guerra, Faculty Administrator

  • “She is very kind to students and always enthusiastic to help students… every time we need emergent help, she is willing to give us a hand.”
  • “Ann helps anyone who goes to her for help with anything, sometimes when it’s beyond her duty.” 

Teresa Nguyen, Student Accounting Associate

  • “She stays on top of our many, many student financial issues, is an extremely reliable source of information and is super friendly.”
  • “Teresa’s cheerful disposition, her determination, and her professionalism seem to go above and beyond what is simply required.”

Helen Niu, Faculty Administrator

  • “Helen is always a pleasure to work with.”
  • “She goes the extra mile in her dealings with me, which is very much appreciated.”

The School of Engineering once again gave the EE department several gift cards to distribute to staff members who are recognized for going above and beyond. More people will be recognized next month, and past nominations will still be eligible for future months. EE faculty, staff and students are welcome to nominate a deserving staff person by visitinghttps://gradapps.stanford.edu/NotableStaff/nomination/create.

Ann Guerra  Teresa Nguyen  Helen Niu

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