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Four new faculty join School of Engineering & Applied Science

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By Beth Miller
 

Four new faculty joined the School of Engineering & Applied Science July 1. Computer Science & Engineering welcomed two new faculty members and a department chair, and Mechanical Engineering & Materials Science welcomed one new faculty member.

Roch Guérin, PhD, joined Engineering as professor and chair of Computer Science & Engineering. Guérin was most recently the Alfred Fitler Moore Professor of Telecommunications Networks and professor of electrical and systems engineering and computer and information science at the University of Pennsylvania.

Sanmay Das, PhD, and Yasutaka Furukawa, PhD, joined Computer Science & Engineering.

Das joins the School of Engineering & Applied Science from Virginia Polytechnic Institute and State University (Virginia Tech), where he was associate professor of computer science. His research interests are in artificial intelligence, specifically in computational social science and machine learning. He received a National Science Foundation CAREER award in 2010 and also has received research funding from the U.S.-Israel Binational Science Foundation and the Intelligence Advanced Research Projects Activity (IARPA). He has served in various roles with computer science organizations and at conferences in artificial intelligence and machine learning.

Das earned a master’s and a doctorate from in computer science from the Massachusetts Institute of Technology and a bachelor’s degree from Harvard College. He conducted postdoctoral research at the University of California, San Diego before joining the faculty at Rensselaer Polytechnic Institute as an assistant professor in computer science with a courtesy appointment in the Lally School of Management.

Furukawa joins the faculty from Google Inc., where he was a software engineer and researched automated 3D reconstruction and visualization techniques from images. His multi-view stereo (MVS) algorithm has been recognized as the best 3D reconstruction algorithm from calibrated photographs based on an evaluation conducted by Computer Vision researchers. The software has been used in numerous academic and industrial settings, including several visual effect companies for real film-production purposes, as well as at Google. Most recently, he developed and deployed state-of-the-art computer vision and graphics techniques into real products at Google. He is also a pioneer in the automated 3D reconstruction and visualization techniques for indoor scenes.

Before joining Google, Furukawa was a research associate at the University of Washington. He earned a doctorate from the University of Illinois at Urbana-Champaign and a bachelor's degree from the University of Tokyo.

Alumna Jessica Wagenseil, DSc, joins Mechanical Engineering & Materials Science as an associate professor. Wagenseil studies cardiovascular mechanics, specifically cardiovascular development, extracellular matrix proteins and microstructurally based constitutive modeling. Her work is important for testing clinical interventions for elastin-related diseases and for designing better protocols for building tissue-engineered blood vessels.

She completed a postdoctoral fellowship in cell biology and physiology with Robert Mecham, PhD, at Washington University School of Medicine. She earned a doctorate in biomedical engineering at Washington University and a bachelor’s degree in bioengineering from the University of California, San Diego. Wagenseil joins Engineering from a faculty appointment in biomedical engineering at Saint Louis University.

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The School of Engineering & Applied Science at Washington University in St. Louis focuses intellectual efforts through a new convergence paradigm and builds on strengths, particularly as applied to medicine and health, energy and environment, entrepreneurship and security. With 82 tenured/tenure-track and 40 additional full-time faculty, 1,300 undergraduate students, 700 graduate students and more than 23,000 alumni, we are working to leverage our partnerships with academic and industry partners — across disciplines and across the world — to contribute to solving the greatest global challenges of the 21st century.

Abstract:
Three new faculty and a new department chair joined the School of Engineering & Applied Science July 1.
ImageUrl: http://admin.seas.wustl.edu/ContentImages/newsphotos/New_faculty_news_article_72.jpg
DateAdded: 7/17/2013

Team LumaCure takes top prize in EWH competition

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By Beth Miller

For the second year in a row, a team of students from the Washington University School of Engineering & Applied Science has taken first place in the Engineering World Health Design Competition.

Team LumaCure, which includes biomedical engineering majors Charles Wu, junior; Huy Lam, sophomore; John Prewitt, senior; Yoga Shentu, sophomore; and Matt Speizman, sophomore; won the $3,000 first-place prize in the 2013 competition. They will receive their award at the Biomedical Engineering Society meeting in Seattle in September.

The team received the award for its Electroluminescence Biliblanket, a low-cost alternative to treating jaundice in newborns. The device is a small, glowing mat placed next to the infant’s skin, with much less power intensive requirements and less costly than those currently used. The team built a prototype that uses electroluminescent materials to transmit light, eliminating the need for expensive fiber optics, and to supply a low-cost, reliable and safe treatment for jaundice in newborns, particularly in the developing world.

Earlier this year, the team received a $5,000 prize in in the School of Engineering & Applied Science’s inaugural Discovery Competition.

In 2012, a team of Engineering students also took first place in the Engineering World Health Design Competition for their design of a spirometer, a medical device used to measure lung function and to diagnose and monitor lung disorders. Most spirometers cost between $1,000-$2,000, making them unaffordable for hospitals and clinics in the developing world. However, the device the Washington University team designed costs about $8. The low cost could allow health-care providers in developing countries to purchase the spirometers, which the team specially designed for accuracy and durability despite their price. This project developed into a startup company, Sparo Labs, for two of the team's members, Andrew Brimer, who earned a bachelor's degree in mechanical engineering in May, and Abigail Cohen, who earned a bachelor's degree in biomedical engineering in May.
 

Abstract:
For the second year in a row, a team of students from the Washington University School of Engineering & Applied Science has taken first place in the Engineering World Health Design Competition.
ImageUrl: http://admin.seas.wustl.edu/ContentImages/newsphotos/LumaCare_news_article_72.jpg
DateAdded: 8/12/2013

Sophomore busts Rubik’s Cube record

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By Diane Toroian Keaggy, news.wustl.edu

Washington University in St. Louis incoming sophomore Kevin Hays busted his own Rubik’s Cube world record Aug. 3 at the Vancouver Open in Surrey, British Columbia.

Hays solved the “6x6” Rubik’s Cube in 1 minute, 40 seconds — 9 seconds faster than his previous record. The 6x6 cube has 36 squares per side; that’s a total of 216 squares Hays twisted and turned into perfect alignment. Most of us grew up trying (and failing) to solve the standard 3x3 cube, which has nine squares per side.

Recognized as one of the globe’s best solvers, Hays said he has memorized some 80 algorithms to master the 6x6 cube. He started playing as a high school freshman and, at one point, trained three hours a day. These days, he only practices before big competitions.

“It’s not as much math as you might think,” Hays said. “It’s more pattern recognition and muscle memory execution. You need the kind of mind that can see something and then immediately associate it with what you have to do.”

Hays said he never expected to break the world record.

“In competition, I’m pretty nervous,” Hays said. “To get 1:40 was nuts. It will be a long time before I get a time that good again.”

<iframe width='400' height='315' src='//www.youtube.com/embed/B5Zi054Fa5k?rel=0' frameborder='0' allowfullscreen></iframe>

Hays came close to breaking the world record two years ago, but then the cube literally fell apart in his hands.

Hays also won first place in  the 5x5, 6x6 and 7x7 events at the World Rubik’s Cube Championship 2013, which took place in July in Las Vegas.

Hays, 19, of Renton, Wash., is studying math, in Arts & Sciences, and computer science.

And he’s not the only Rubik’s Cube master on campus. As a teenager, Provost Holden Thorp, PhD, competed against fellow champions on the television show That’s Incredible. He won the first round, solving the standard 3x3 cube in 48 seconds. Impressive … for the 1980s. Today, the best competitors can solve the cube in less than 10 seconds.

Read more in the WUSTL Newsroom.

Abstract:
Computer Science & Engineering student Kevin Hays solved the "6x6" Rubik's Cube in 1 minute, 40 seconds.
ImageUrl: http://admin.seas.wustl.edu/ContentImages/newsphotos/Hays_news_article_72.jpg
DateAdded: 8/16/2013

Simulations enable wireless control for resilient civil infrastructure

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By Beth Miller
 

Structural control systems have the potential to help our civil infrastructure, such as bridges, roads and buildings, survive natural disasters such as earthquakes or storms. However, traditional control systems based on sensors connected by wired networks are costly, labor intensive and tend to break during disasters when they are most needed.

Recently, engineers have begun to use wireless networks that are easier, cheaper and more resilient to structural damages, such as earthquakes or hurricanes, as they are able to reroute data to still provide it at critical times.
 
Chenyang Lu, PhD, professor of computer science & engineering in the School of Engineering & Applied Science at Washington University in St. Louis, teamed with colleagues at Purdue University and the University of Illinois at Urbana-Champaign to develop a unique system they call a Wireless Cyber-Physical Simulator (WCPS), a state-of-the-art, integrated environment that combines realistic simulations of both wireless sensor networks and structures. They say it is a promising technology to control the structures based on real-time measurements from wireless sensors attached to the structure so that they survive natural disasters.
 
“The wireless sensor network community has sophisticated mathematical models to simulate these complicated dynamic behaviors of wireless, which have been tested in many environments,” Lu says. “The civil engineering community has developed structural models for studying structural dynamics. In our novel approach, we put these two together and integrated the simulation environment into one. We can simulate the physical aspects, or structure dynamics, and cyber aspects, or the dynamics of the wireless communication, in an integrated, holistic fashion.”
 
To demonstrate the simulator, the team set up realistic case studies of the integrated wireless control system on a bridge and a building. The case studies are the first high-fidelity, cyber-physical simulations of wireless structural control for large civil structures.
 
For the bridge case study, they looked at the Bill Emerson Memorial Bridge in Cape Girardeau, Mo. The cable-stayed bridge has a main span of 1,150 feet and carries up to 14,000 cars a day over the Mississippi River. Cape Girardeau is in the heart of the New Madrid Seismic Zone, the most active seismic area in the United States east of the Rocky Mountains, encompassing southeastern Missouri, northeastern Arkansas, western Tennessee, western Kentucky and southern Illinois.
 
Because the Cape Girardeau bridge does not have wireless sensors, the researchers used wireless traces collected from a solar-powered, wireless sensor network, deployed by Gul Agha, PhD, professor of computer science, and Bill Spencer, PhD, professor of civil engineering, both at the University of Illinois, on the Jindo Bridge in South Korea, which has similar design and dimensions as the Cape Girardeau bridge.
 
“We took the wireless properties from Jindo and added them to the physical properties of the Cape Girardeau bridge with integrated simulation,” Lu says. “The benefit of the cyber-physical simulator is that we can do it virtually.”
 
For the building case study, they used a benchmark three-story building model built by Shirley Dyke, PhD, professor of mechanical engineering and civil engineering at Purdue, as well as data from wireless traces from Charles W. Bryan Hall at Washington University, to create the virtual integration.

Lu says the case studies shed light on the challenges of wireless structural control and the limitations of a traditional structural control approach, as well as the promise of a holistic cyber-physical co-design approach to design the wireless control system.
 
“We have built this integrated simulator that captures both the physical and network dynamics that really enable this research for large-scale wireless control systems that could not have been done in high-fidelity in the past,” Lu says. “In building this simulator, we hope that it has a long-lasting impact to encourage other researchers to do research in wireless cyber-physical systems.”
 
The team expects the research to result in a reduction in the lifecycle costs and risks related to the U.S. civil infrastructure. The team also plans to disseminate results throughout the international research community through open-source software (http://wcps.cse.wustl.edu).
 
 
 
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Li B, Sun Z, Mechitov K, Hackmann G, Lu C, Dyke S, Agha G, Spencer B. Realistic Case Studies of Wireless Structural Control. Presented April 11, 2013, at the ACM/IEEE 4th International Conference on Cyber-Physical Systems.
 
Funding for this research was provided by the National Science Foundation through the Cyber-Physical Systems Program.
 
More information about the project is available at http://bridge.cse.wustl.edu.
Abstract:
School of Engineering & Applied Science researchers have developed a promising technology to control structures in the event of natural disasters.
ImageUrl: http://admin.seas.wustl.edu/ContentImages/newsphotos/News%20photos%20post%202.15.12/Lu_research_news_article_72.jpg
DateAdded: 4/25/2013

Lu featured in IEEE Spectrum podcast

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By Steven Cherry, spectrum.ieee.org

Back in May, a truck on Interstate 5’s Skagit River bridge hit some overhead beams. The bridge collapsed, and 50 meters of it fell into the river, along with two other vehicles containing three people. Fortunately, no one died.

For a month, more than 70 000 vehicles a day faced a half-hour detour. Many didn’t bother, and nearby businesses lost up to 80 percent of their sales. Could technology have helped?

It might seem that bridge sensors, for example, would be powerless to help us when a truck clips an overhead beam at high speed. But it turns out that last year, as a local newspaper reported, bridge inspectors had “identified eight different points on the bridge that had high-load damage, including some portions in which components were deformed by the impact.” Also, last fall a truck had ripped an 8-centimeter gash in the bridge and tore off the surrounding paint.

Bridges seem to be collapsing around us nearly every day. At least some of those failures could be predicted in advance and averted with sensors that could be monitoring their structural worthiness. My guest today is just the person to tell us how sensors can help.

Chenyang Lu bridges two worlds, pun intended. He teaches computer science and engineering at Washington University in St. Louis; he’s an active member of both the ACM and the IEEE; and his research areas include real-time systems, wireless sensor networks, and what he calls “cyberphysical systems.” He joins us by phone.

Chenyang, welcome to the podcast.

Chenyang Lu: Hi, Steven. Thanks for having me.

Steven Cherry: First, could sensors have helped understand the ongoing pounding that bridge in Washington state was taking? And second, is this a common scenario for bridges?

Chenyang Lu: Well, certainly there’s this area of structural-health monitoring that has exactly focused on this area, this problem, of trying to use sensors to detect damages on structures such as bridges. There’s been a long history of studying this problem, and actually ranging all the way from airplanes to bridges. So, certainly, I think, of course we would have to take a close look at the specific problems, and certainly there’s potential for structural-health-monitoring technology to solve these problems, at least in certain cases.

Read more at spectrum.ieee.org or listen to the podcast.

Abstract:
In "Smart Bridges," Professor Chenyang Lu discusses how adding wireless sensor networks to bridges could help monitor their structural integrity.
ImageUrl: http://cse.wustl.edu/ContentImages/News%20Images/Lu_300.jpg
DateAdded: 8/21/2013

Creating plants that make their own fertilizer

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By Diana Lutz, news.wustl.edu

Since the dawn of agriculture, people have exercised great ingenuity to pump more nitrogen into crop fields. Farmers have planted legumes and plowed the entire crop under, strewn night soil or manure on the fields, shipped in bat dung from islands in the Pacific or saltpeter from Chilean mines and plowed in glistening granules of synthetic fertilizer made in chemical plants.

No wonder Himadri Pakrasi’s team is excited by the project they are undertaking. If they succeed, the chemical apparatus for nitrogen fixation will be miniaturized, automated and relocated within the plant so nitrogen is available when and where it is needed — and only then and there.

“That would really revolutionize agriculture,” said Pakrasi, PhD, the Myron and Sonya Glassberg/Albert and Blanche Greensfelder Distinguished University Professor, in Arts & Sciences, and director of the International Center for Advanced Renewable Energy and Sustainability (I-CARES) at Washington University in St. Louis.

Engineering with biological parts
Although there is  plenty of nitrogen in the atmosphere, atmospheric nitrogen is not in a form plants can use. Atmospheric nitrogen must be “fixed,” or converted into compounds that make the nitrogen available to plants.

Much of modern agriculture relies on biologically available nitrogenous compounds made by an industrial process, developed by German chemist Fritz Haber in 1909. The importance of the Haber-Bosch process, as it eventually was called, can hardly be overstated; today, the fertilizer it produces allows us to feed a population roughly a third larger than the planet could sustain without synthetic fertilizer.

On the other hand, the Haber-Bosch process is energy-intensive, and the reactive nitrogen released into the atmosphere and water as runoff from agricultural fields causes a host of problems, including respiratory illness, cancer and cardiac disease.

Pakrasi thinks it should be possible to design a better nitrogen-fixing system. His idea is to put the apparatus for fixing nitrogen into plant cells, the same cells that hold the apparatus for capturing the energy in sunlight.

The National Science Foundation just awarded Pakrasi and his team more than $3.87 million to explore this idea further. The grant will be administered out of I-CARES, a university-wide center that supports collaborative research regionally, nationally, and internationally in the areas of energy, the environment and sustainability.

This award is one of four funded by the National Science Foundation jointly with awards funded by the Biotechnology and Biological Sciences Research Council in the United Kingdom. The teams will collaborate with one another and meet regularly to share progress and successes. The NSF release is available here.

A proof of principle
As a proof of principle, Pakrasi and his colleagues plan to develop the synthetic biology tools needed to excise the nitrogen fixation system in one species of cyanobacterium (a phylum of green bacteria formerly considered to be algae) and paste it into a second cyanobacterium that does not fix nitrogen.

The team includes: Tae Seok Moon, PhD, and Fuzhong Zhang, PhD, both assistant professors of energy, environmental and chemical engineering in the School of Engineering & Applied Science at Washington University; and Costas D. Maranas, the Donald B. Broughton Professor of Chemical Engineering at Pennsylvania State University.

“Ultimately what we want to do is take this entire nitrogen-fixation apparatus — which evolved once and only once — and put it in plants,” Pakrasi said. “Because of the energy requirements of nitrogen fixation, we want to put it in chloroplasts, because that’s where the energy-storing ATP molecules are produced.” In effect, the goal is to convert all crop plants, not just the legumes, into nitrogen fixers.

Read more in the WUSTL Newsroom.

Abstract:
Tae Seok Moon, PhD, and Fuzhong Zhang, PhD, will work with Himadri Pakrasi, PhD, the director of I-CARES, on research that has the potential to revolutionize agriculture.
DateAdded: 8/23/2013

Blue-green algae a five-tool player in converting waste to fuel

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By Tony Fitzpatrick
 

In the baseball world, a superstar can do five things exceptionally well: hit, hit for power, run, throw and field.

In the parallel universe of the microbiological world, there is a current superstar species of blue-green algae that, through its powers of photosynthesis and carbon dioxide fixation, or uptake, can produce (count 'em) ethanol, hydrogen, butanol, isobutanol and potentially biodiesel. Now that’s some five-tool player.
 
In baseball, you call that player Willie Mays or Mike Trout. In microbiology, it goes by Synechocystis 6803, a versatile, specialized bacterium known as a cyanobacterium. It makes pikers out of plants when it comes to capturing and storing energy from photosynthesis, and it’s a natural in converting the greenhouse gas carbon dioxide (CO2) to useful chemicals that could help both tame global warming and sustain energy supply. In addition, genetically engineered Synechocystis 6803 also has the potential to make commodity chemicals and pharmaceuticals.
 
Granted, that’s mostly in laboratories, on the liter scale.  Because of its versatility and potential, this microscopic organism is one of the most studied of its kind since it was discovered in 1968. But just as in baseball, where “can’t miss” five-tool prospects are signed yearly with great expectations and never achieve their promise, Synechocystis 6803 has yet to deliver.
 
Fuzhong Zhang, PhD, assistant professor of energy, environmental & chemical engineering at Washington University in St. Louis, works with Synechocystis 6803 — as well as other microbes and systems — in the areas of synthetic biology, protein engineering and metabolic engineering, with special focus on synthetic control systems to make the organism reach its untapped prowess.  Zhang says the biotech world has to overcome several challenges to put the engineered microbes in the applications stage. Zhang will be in the thick of them.
 
“My goal is to engineer microbes and turn them into microfactories that produce useful chemicals,” Zhang says.  “Synechocystis is particularly interesting because it can use CO2 as the only carbon source. Engineering this bacterium would turn the fixed CO2 into metabolites that can be further converted to fuels and other chemicals through designed biosynthetic pathways.”
Traditional chemical production requires high pressure and temperatures and literally tons of chemical solvents, but the microbial approach is very eco-friendly: Once the engineered cyanobacteria start to grow, all they need are water, basic salts and the CO2.
 
In an academic “scouting report” of Synechocystis, published in the August 2013 Marine Drugs, Zhang and colleagues summarize recent research and conclude that production speed has to be increased and new genetic tools must be developed to control the biochemistry inside Synechocystis so that chemical productivities will be improved to make this technology economically viable. Current industry specifications for potentially scalable chemical production are roughly 100 grams per liter of fuel or chemicals.  Presently, the laboratory production is generally less than 1 gram per liter, and the efficiency is very low.
 
Zhang says the research community needs better tools to control gene expression. For example, promoters — little stretches of DNA before genes of interest that help control gene expression — with predictable strength are needed. They also need better cellular biosensors that can sense key metabolites and control the production of vital proteins that create the desired chemicals. And they need to engineer the organisms’ circadian rhythms (day/night) to someday produce organisms that work around the clock making a fuel or chemical. Natural Synechocystis 6803, for instance, performs a yeoman’s task of producing and storing energy molecules during the day through photosynthesis, but at night, it uses a different set of metabolisms to consume the stored energy. The natural circadian rhythm has to be rewired to make a biofuel 24 hours a day.
 
Zhang’s research includes developing gene expression tools, new chemical biosynthetic pathways and circadian control tools for cyanobacteria.
 
“I’m confident that in two or three years we will have more potent tools to engineer gene expression levels and timing, which will speed up the process more accurately and efficiently,” he says.
 
Also, his group has been working to develop dynamical control systems in microbes that function like meters and valves in a traditional chemical production plant – the meters calculate pressure and flow, and the valves control them.
 
“It’s a biological version of the valve-and-meter model to control the flow of metabolites that make the production of fuel and chemicals more efficiently,” he says. 
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Yu Y, You L, Liu D, Hollinshead W, Tang Y, Zhang F. Development of Synechocystis sp. PCC 6803 as a Phototrophic Cell Factory. Marine Drugs 2013, 11, 2894-2916; doi: 10.3390/nd11082894. 
 
Funding for this research was provided by the National Science Foundation.
 
The School of Engineering & Applied Science at Washington University in St. Louis focuses intellectual efforts through a new convergence paradigm and builds on strengths, particularly as applied to medicine and health, energy and environment, entrepreneurship and security. With 82 tenured/tenure-track and 40 additional full-time faculty, 1,300 undergraduate students, 700 graduate students and more than 23,000 alumni, we are working to leverage our partnerships with academic and industry partners — across disciplines and across the world — to contribute to solving the greatest global challenges of the 21st century.
Abstract:
Fuzhong Zhang, PhD, and Yinjie Tang, PhD, are working with a blue-green algae to convert waste to fuel.
ImageUrl: http://admin.seas.wustl.edu/ContentImages/newsphotos/Tang_Zhang_news_article_72.jpg
DateAdded: 8/26/2013

Iron uptake by plants focus of I-CARES grant

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By Beth Miller
 

Both humans and plants need iron in their diets, or else they get sick and don’t grow. Humans can eat iron-rich foods or a supplement, but for plants, the process is more complicated, as iron in the soil has to be dissolved before the plant can absorb it.

With a one-year grant from Washington University’s International Center for Advanced Renewable Energy & Sustainability (I-CARES), researchers at Washington University in St. Louis plan to use some high-tech methods to better understand the processes, mechanics and interfaces that plants use to move iron from the soil, through water and into the plant.
 
“Iron is hard to move from the soil into the plant because it has to dissolve in something, but it is notorious for its low solubility,” says Daniel E. Giammar, PhD, the Harold D. Jolley Associate Professor of environmental & chemical engineering at Washington University in St. Louis. “We are trying to determine how the iron gets from the soil mineral into the water by interacting with a range of compounds that we know plants release.”
 
Giammar and Jeffrey G. Catalano, associate professor of earth & planetary sciences, both have expertise in aquatic systems — Giammar in aquatic chemistry, and Catalano in environmental geochemistry and mineralogy. The two Washington University investigators are combining forces with Stephan M. Kraemer, PhD, chair of geochemistry and head of the Department of Environmental Geosciences at the University of Vienna, and with Ivan Baxter, PhD, USDA research scientist at the Donald Danforth Plant Science Center. Kraemer will be at Washington University on sabbatical in early 2014.
 
The team will use a technique called scanning transmission X-ray microscopy (STXM) to measure the molecular changes in iron oxides by their reactions with natural compounds. STXM uses a high-powered X-ray beam focused to about 30 nanometers, providing the researchers with nanoscale maps of the elements and their oxidation states.
 
“STXM is a tool that uses the very bright focused X-rays and is only available at a few places in the United States,” Giammar says. “With STXM, we can scan across the material and understand whether the iron is in an oxidized or reduced form, or whether it is more soluble. There may be some catalytic effects that make the whole iron pool more available.”
 
Overall, the researchers seek to determine the mechanisms of how iron mobilizes when particular molecules and elements are in place, with the theory that they are working together to speed up key processes in which the plant dissolves and absorbs the iron.
 
As part of the grant funding, the team plans to hold a one-day Soil-Water-Plant Summit next spring to foster additional interactions between the university’s research strengths in environmental chemistry and in plant science.
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The School of Engineering & Applied Science at Washington University in St. Louis focuses intellectual efforts through a new convergence paradigm and builds on strengths, particularly as applied to medicine and health, energy and environment, entrepreneurship and security. With 82 tenured/tenure-track and 40 additional full-time faculty, 1,300 undergraduate students, 700 graduate students and more than 23,000 alumni, we are working to leverage our partnerships with academic and industry partners — across disciplines and across the world — to contribute to solving the greatest global challenges of the 21st century.
 
Abstract:
Associate Professor Dan Giammar and a group of researchers will study the processes, mechanics and interfaces that plants use to move iron from the soil, through water and into the plant.
ImageUrl: http://admin.seas.wustl.edu/contentimages/facultyphotos/Giammar_Dan.jpg
DateAdded: 8/28/2013

Shining a little light changes metal into semiconductor

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By Beth Miller

By blending their expertise, two materials science engineers at Washington University in St. Louis changed the electronic properties of new class of materials — just by exposing it to light.

With funding from the Washington University International Center for Advanced Renewable Energy and Sustainability (I-CARES), Parag Banerjee, PhD, and Srikanth Singamaneni, PhD, and both assistant professors of materials science, brought together their respective areas of research. Singamaneni’s area of expertise is in making tiny, pebble-like nanoparticles, particularly gold nanorods. Banerjee’s area of expertise is making thin films. They wanted to see how the properties of both materials would change when combined.

The research was published online in August in ACS Applied Materials & Interfaces.

The research team took the gold nanorods and put a very thin blanket of zinc oxide, a common ingredient in sunscreen, on top to create a composite. When they turned on light, they noticed that the composite had changed from one with metallic properties into a semiconductor, a material that partly conducts current. Semiconductors are commonly made of silicon and are used in computers and nearly all electronic devices.

“We call it metal-to-semiconductor switching,” Banerjee says. “This is a very exciting result because it can lead to opportunities in different kinds of sensors and devices.”

Banjeree says when the metallic gold nanorods are exposed to light, the electrons inside the gold get excited and enter the zinc oxide film, which is a semiconductor. When the zinc oxide gets these new electrons, it starts to conduct electricity.

“We found out that the thinner the film, the better the response,” he says. “The thicker the film, the response goes away. How thin? About 10 nanometers, or a 10 billionth of a meter.”

Other researchers working with solar cells or photovoltaic devices have noticed an improvement in performance when these two materials are combined, however, until now, none have broken it down to discover how it happens, Banerjee says.

“If we start understanding the mechanism for charge conduction, we can start thinking about applications,” he says. “We think there are opportunities to make very sensitive sensors, such as an electronic eye. We are now looking to see if there is a different response when we shine a red, blue or green light on this material.”

Banerjee also says this same technology can be used in solar cells.

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Wu F, Tian L, Kanjolia R, Singamaneni S, Banerjee P. Plasmonic Metal-to-Semiconductor Switching in Au Nanorod-ZnO nanocomposite films. ACS Applied Materials & Interfaces. Dx.doi.org/10.1021/am402309x.

Funding for this research was provided by Washington University International Center for Advanced Renewable Energy and Sustainability at Washington University (I-CARES) and SAFC Hitech.

The School of Engineering & Applied Science at Washington University in St. Louis focuses intellectual efforts through a new convergence paradigm and builds on strengths, particularly as applied to medicine and health, energy and environment, entrepreneurship and security. With 82 tenured/tenure-track and 40 additional full-time faculty, 1,300 undergraduate students, 700 graduate students and more than 23,000 alumni, we are working to leverage our partnerships with academic and industry partners — across disciplines and across the world — to contribute to solving the greatest global challenges of the 21st century.

Abstract:
Two Washington University in St. Louis materials science engineers changed the electronic properties of new class of materials — just by exposing it to light.
ImageUrl: http://admin.seas.wustl.edu/ContentImages/Banerjee_research_news_article_72.jpg
DateAdded: 8/29/2013

Zhang receives prestigious DARPA Young Faculty Award

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By Beth Miller

Because petroleum is a limited resource worldwide, Fuzhong Zhang, PhD, has been working to find alternative solutions to replace it. Now, he has received an $860,000 award to use common bacteria to make gasoline and other chemicals now derived from petroleum.

Zhang, assistant professor of energy, environmental & chemical engineering, has received a Young Faculty Award from the Defense Advanced Research Project Agency of the U.S. Department of Defense. He is the first faculty member at Washington University in St. Louis to receive the award, which recognizes an elite group of scientists early in their careers at research universities. This year, the agency awarded more than $12 million to 25 researchers out of 226 applicants. 

Zhang’s award funds up to three years of research on his plan to engineer bacteria to produce non-natural fatty acids, which can be easily converted to advanced biofuels and chemicals that could reduce the demand on the world’s petroleum supply.

Zhang will use his chemistry expertise to engineer the fatty acid pathway to make a molecule with a chemical structure similar to isoctane, which is the major component in gasoline.

“Currently, most engineers are able to engineer bacteria to synthesize ethanol, butanol or biodiesel, but nobody has been able to synthesize gasoline,” Zhang says. “Our goal is not only to make gasoline, but also to go broader so that the next step would allow us to produce many useful chemicals that are currently derived from petroleum, such as detergents, solvents and lubricants.”

Zhang says the bacterium Escherichia coli was a natural choice for this project.

E. coli grows very rapidly and has an efficient fatty acid biosynthetic system,” he says. “Once we engineer it, it will produce chemicals very efficiently.”

“Secondly, E. coli is a well-engineered and well-understood bacteria, so many tools have already been developed that we can use to control the pathway much better than with other hosts,” he says.

Zhang says DARPA is interested in this technology because a petroleum alternative would reduce the reliance on petroleum for fuels and chemicals and because the technology would allow the production of a set of non-natural molecules from cheap, sustainable resources.

The long-term goal of the DARPA Young Faculty Award Program is to develop the next generation of scientists and engineers who will focus their careers and research on the Department of Defense and national security issues.

______________________________________________________________

The School of Engineering & Applied Science at Washington University in St. Louis focuses intellectual efforts through a new convergence paradigm and builds on strengths, particularly as applied to medicine and health, energy and environment, entrepreneurship and security. With 82 tenured/tenure-track and 40 additional full-time faculty, 1,300 undergraduate students, 700 graduate students and more than 23,000 alumni, we are working to leverage our partnerships with academic and industry partners — across disciplines and across the world — to contribute to solving the greatest global challenges of the 21st century.

Abstract:
With a Young Faculty Award from the Defense Advanced Research Project Agency, Fuzhong Zhang, PhD, plans to use bacteria to derive a gasoline alternative.
ImageUrl: http://admin.seas.wustl.edu/ContentImages/newsphotos/ZhangF_news_article_72.jpg
DateAdded: 9/3/2013

Carter named a "Person on the Move"

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The St. Louis American

Dedric A. Carter has been named associate dean for international education and research and professor of the practice in the School of Engineering & Applied Science at Washington University.

He will serve as ambassador-at-large for the McDonnell International Scholars Academy and develop international research partnerships; develop graduate, professional certificate and summer programs for international students; and work with corporate partners.

Abstract:
Dedric Carter, PhD, associate dean for international education and research and professor of the practice, was named a "Person on the Move" by The St. Louis American.
ImageUrl: http://admin.seas.wustl.edu/ContentImages/facultyphotos/Carter_291x300.jpg
DateAdded: 9/3/2013

‘Seeing it in practice’: Engineering students learned around the world in summer experiences

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By Beth Miller 

At Washington University in St. Louis, students in the School of Engineering & Applied Science learn more than how to be an engineer. With opportunities to go abroad to get hands-on experience beyond what they learn in the classroom, they also learn to be leaders in a global society.

Sixteen WUSTL students went to Brisbane, Australia, for the International Experience program, sponsored by the Department of Energy, Environmental & Chemical Engineering and the McDonnell Global Energy and Environment Partnership (MAGEEP). The International Experience visits a different country each summer, in collaboration with MAGEEP partner universities, providing students with opportunities to learn how other countries handle energy and environmental challenges. The international trip is part of course EECE 401, International Experience in Energy, Environmental & Chemical Engineering, which includes pre-program seminars in the spring, the summer trip, and a fall course to complete follow-up projects and presentations.

The trip included lectures at the University of Queensland (UQ) in aquatic engineering, solar and geothermal energy, wastewater treatment, carbon dioxide sequestration, biofuel development, electricity market and the economic and social impact of energy and environmental development. In addition, the group visited the UQ’s solar array; a biofuel generation lab, including algae ponds; several labs; the Rio Tinto Boyne Smelter; and a coalmine, in addition to some recreational trips. The students also prepared a presentation on what they had learned.

Pratim Biswas, PhD, department chair and the Lucy & Stanley Lopata Professor, who accompanied the students on the second half of the trip, said it was a great opportunity to see things in full scale.

“Here, the students are in a classroom learning all the theory, but they got to see it in practice,” he says. “They could see the entire supply chain in the energy domain, from the mines where the coal comes from, how it is transported, how it’s shipped internationally then in use at the power plant. They also got to see some new technology-based power generation that we don’t have here in the United States.”

Hanna Newstadt, a junior majoring in chemical engineering, says she was interested in learning about chemical engineering from a different perspective.

“One of the big things I came away with was the different resources available in Australia,” Newstadt says. “They are very dependent on coal, and they have a lot of uranium that they don’t use. It was very interesting to see the energy profile compared to that in the United States.”

Jessica Rudnick, a junior majoring in environmental earth science, says she was impressed by some of the technologies she saw in use.

“I really liked the algae ponds at the UQ research facility,” she says. “They plan to couple the open algae reactor with an agriculture system, and that’s something I never thought of.”

Rudnick says the visit to the open strip coalmine left a lasting impression.

“I’d never seen anything like that before – it ripped open my heart,” Rudnick says. “It was an amazing sight – it gave you a sense of the scale and the size of energy production. It was terrible, but really amazing as to how powerful humans can be to create these canyons and mountains.”

international experience photo

Students on the International Experience trip to Brisbane, Australia, stand among 1,808 solar panels on top of the University of Queensland Center, part of UQ's Solar Array, a 1.22-megawatt photovoltaic solar array that supplies 5 percent peak time energy use at the university.

Newstadt, who this summer worked in the lab of Jay Turner, PhD, associate professor and director of undergraduate programs, through the National Science Foundation’s Research Experience for Undergraduates program, said the trip was a great experience.

“It’s very different from learning in the classroom,” she says. “I feel like I have more direction in what I want to do after college.”

The course and the trip are led by Ruth Chen, PhD, professor of practice, director of the International Experience Program and of the master of engineering program in Energy, Environmental & Chemical Engineering. Chen, who has led five prior International Experience trips, says this year’s trip had high-quality classroom instruction coupled with site visits related to the lectures.

“We try to learn from the strength of each school and each country and take home how they solve their energy and environmental challenges,” Chen says. “The students bring home different perspectives that will be useful pointers for working in energy and environmental challenges in the United States. They are going to be very good engineers and world citizens.”

She credited Chris Greig, director of the University of Queensland Energy Initiative, for the successful outcome of the 16-day trip.

“He has tremendous experience and connections, he understands our curriculum, and he was able to stretch the students in a direction that’s comfortable for them,” Chen says.

Grieg works closely with Richard Axelbaum, PhD, the Stifel & Quinette Jens Professor of Environmental Engineering Science, on an international network of universities collaborating to develop innovative ways to cleanly burn coal for energy. Axelbaum also accompanied the students on the first part of the trip.

Grieg says he was so impressed by the group that he is considering developing a similar program for the University of Queensland.

“I think the students gained a new perspective on global energy markets and environmental challenges through both their lectures at UQ and the industry site visits,” Grieg says. “They would have been particularly struck by the level of investment in energy commodity export capacity, which is very different scenario to the USA.

“I found the Wash U students to be very enthusiastic, engaging and eager to learn both in relation to the energy and environment content but also in relation to the cultural and geographic characteristics of Australia,” Grieg says. “I was particularly struck by their politeness and genuine appreciation of everything UQ arranged for them.”

On some of the longer bus rides between locations, Biswas and Chen gave interactive lectures to the students on topics such as career options and choices. Also, after each visit to a facility and on the ferry to classes, the students and professors discussed what they saw.

Seven students stayed in Brisbane until mid-August in internships, working on supplying solar energy to the outback, water treatment, biofuel, seam gas extraction, environmental remediation and nanotechnology.

The next International Experience trip will be to Singapore in 2014. Students will work with National University of Singapore (NUS) and Yale NUS. For more information, visit http://eece.wustl.edu/undergraduateprograms/Pages/international-experiences.aspx.

In late May, Frank Yin, MD, PhD, professor of biomedical engineering, took a group of five rising seniors majoring in biomedical engineering on a two-week trip to Hong Kong and China. They worked with students from Hong Kong Polytechnic University (HKPU) learning to fit and make custom orthotics for young children with cerebral palsy in rural China.

The students had one week of training at HKPU, traveled to the Mei Zhou Rehabilitation Center in China to take castings for the orthotics, then traveled back to Hong Kong to make them. Once complete, they went back to the clinic to present the finished orthotics to the children and to make sure they fit correctly.

While the WUSTL students knew the trip had a service component, working with the children and their parents had a big impact on them.

Nathan Brajer, a senior majoring in biomedical engineering who is planning to go into medicine, says the trip was a good opportunity to participate in hands-on work that had the potential to help others.

“I learned how important it is to develop a trusting relationship with the people you’re providing health care to,” Brajer says. “When we were trying to form molds of the children's limbs, many became scared and kicked and screamed and cried. All of this kept us from making accurate molds, which was a very important part of making the orthotics. Once we learned how to build trust with the kids, help them understand what we were doing and calm them, all of the technical parts of the process became much easier.”

Sumeet Shah, a senior majoring in biomedical engineering, says the WUSTL group also learned to work as a team during the three days they had to build 40 pairs of orthotics.

“We had an assembly line process, and those were rough days,” he says. “But we got a lot done. We had time to absorb and understand what we were supposed to do, and it was great to work together as a team with the HKPU students.”

Seul Ah Kim, who had spent the prior semester studying in Hong Kong, said she learned several things.

“I was a bit surprised by these patients’ energy since most of them had quite severe cerebral palsy,” she says. “Many of them had no control over their bodies, yet they had a great positive energy. The trip also changed my perspective of people with disabilities.”

Brajer recalls a defining moment on the trip.

“My best experience on the trip was bringing back a finished orthotic to one child in particular, whom I had worked with during our first trip to the clinic, and seeing the look of joy on his face and his mother’s face,” Brajer says. “Seeing how much it meant to them really gave me an unparalleled feeling of accomplishment.”

Abstract:
Students in the School of Engineering & Applied Science travelled around the world this summer to get hands-on experience and to learn to be leaders in a global society.
ImageUrl: http://admin.seas.wustl.edu/ContentImages/newsphotos/international_experience_news_article_72.jpg
DateAdded: 8/29/2013

Engineering students get summer lessons outside of the classroom

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By Beth Miller

School of Engineering undergraduate students spent their summers continuing to learn about engineering, though outside of the traditional classroom.

Four students went across Forest Park to the School of Medicine to work on sustainability issues in the school’s labs. Other students stayed on campus to conduct research in labs through the National Science Foundation’s Research Experiences for Undergraduates program. Still others did internships at governmental agencies, such as NASA, or companies of all sizes. Wherever they were, students were looking to make a difference.

Victor Irony, Jake Lyonfields, Emily Storey and Anshu Tirumali worked as interns in Facilities Engineering at the School of Medicine to further the university’s goal of becoming more sustainable and reducing energy use in the school’s many research labs. They worked with Kevin Harding, energy engineer.

Over the past 15 years, the School of Medicine has made significant strides in sustainability through building state-of-the-art, highly-effective buildings and supporting an aggressive capital renewal plan that keeps systems running as efficiently as possible. In addition, the school has reached out to faculty, students and staff to minimize the school’s energy consumption. 

To continue with the medical school’s work, for about eight weeks, the four interns went to research labs at the medical school to collect information about lab equipment, recording model and serial numbers, amperage, wattage and other information. They created a database for all of the information they gathered to see how many pieces of each type of equipment exist and to calculate the energy used. In total, they counted and took data from 2,300 pieces of lab equipment in four buildings at the medical school:  the McDonnell Pediatric Research Building, Clinical Sciences Research Building (CSRB) and the CSRB North Tower Addition and the McDonnell Sciences Building.

“We organized the database by equipment type, looked at the leading manufacturer and contacted them to get more information about the current equipment we have,” says Irony, a junior majoring in systems engineering and finance. “We also asked them about their newer models that might be more energy efficient.”

Storey, a senior majoring in mechanical engineering with a minor in architecture, said the team looked at electricity costs, operations and maintenance, initial costs and how all of those things worked together to see which ones were the best.

Through these experiences, the students interacted with manufacturer’s representatives, set up conference calls and web-based meetings. 

“We collected all of this information to understand what would be our best choice for replacement if the school were to replace this equipment,” says Lyonfields, a senior majoring in systems engineering and minoring in Spanish. “Also, this information will help us to be able to design spaces better.”
Tirumali says he got more than he expected from the internship.

“I thought it would be very specific – going into the labs, finding data then doing the cost-benefit analysis,” he says. “But when we all started working together, our focus was more about how to make the university a more energy-efficient place. I also learned how hard it is to implement a big change like we’re trying to do, so I gained some perspective on that.”

Harding said the interns did an excellent job.

“I was surprised at how much they got done and impressed by how far they got into the actual survey process,” he says. “We were able to get farther into this project than we expected.”

Other students participated in the computer science Research Experiences for Undergraduates (REU) program, focusing on research.

Noah Rowlett, a junior majoring in computer engineering, worked with Caitlin Kelleher, PhD, the Hugo F. & Ina Champ Urbauer Career Development Associate Professor of computer science, on the Looking Glass computer programming environment targeting students and novice programmers. His project was to develop a badge interface, in which users would earn a badge, popular in video games and online communities, based on achievements.

“We found that when users learn a few basic core concepts, they tend to stagnate and stay limited with this slim arsenal of actions and other things in programming,” Rowlett says. “Badges seemed like the perfect fit. Earning badges encourages them to see what else they could be doing and to interact with other users on the community website.”

Rowlett says before the REU program he never thought about doing research.

“This summer has changed my mind,” he says. “I’m thinking about going for a master’s. I know that human-computer interaction is something I really like, and it’s been really rewarding. This summer definitely gave me an idea of the realm I’d want to shoot for after I graduate.”

Brittany Schied, a junior majoring in biomedical engineering, researched genomics and bioinformatics with Weixiong Zhang, PhD, professor of computer science & engineering, and Sharlee Climer, PhD, research assistant professor. She built networks of genes that were likely to interact, then tested them on different brain regions.

“We’re trying to provide a scaffold for future hypotheses about what these genes do and what biological pathways they are involved in,” she says.

Schied said the biggest thing she took away from the experience was learning how to do her own research project.

“I feel like I’ve gained such a large toolbox of things,” she says. “I know how to write a paper, and we’re going to try to get it published. I’ve gone through a lot of trial and error processes. Perseverance is the biggest thing. I feel fully confident that if I have an idea, I can independently do a research project, and I couldn’t have said that 10 weeks ago.”

Morgan Carlile, a senior majoring in biomedical engineering, was an intern at NASA. See a video of his experience here: http://www.youtube.com/watch?v=MJOSxiaRWl0


Other summer experiences:

Hanna Newstadt, a junior majoring in chemical engineering, worked in the lab of Jay Turner, PhD, associate professor and director of undergraduate programs, in the REU program in Energy, Environmental & Chemical Engineering.

Colin Webb, a senior majoring in mechanical engineering, worked at a nuclear plant for Axelon Nuclear near Chicago. He worked with the plant engineering group, working on monitoring different pieces of equipment to make sure they work properly.

Lucy Cheadle, a junior majoring in chemical engineering, worked for Honeywell in Baton Rouge, La.

Anna Etherington, a senior majoring in systems engineering, worked for Accenture in St. Louis.

Chris Lowery, a junior majoring in mechanical engineering, worked for a heating, ventilating and air conditioning company with CAD drawing and 3D computer drawings, as well as going into the field to put together the systems. 

Abstract:
Washington University Engineering students got a range of experience through summer jobs and internships.
ImageUrl: http://admin.seas.wustl.edu/ContentImages/newsphotos/Students_facilities_med_news_article_72.jpg
DateAdded: 9/6/2013

Wang, Anastasio to adapt imaging technology for lab use with NIH grant

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Sophisticated imaging techniques like CT scans and MRIs help doctors spot a host of medical problems, ranging from cancer to torn ligaments. Researchers need such versatility as well. Although miniaturized systems based on these methods exist for the laboratory bench, they’re not sensitive enough to give both an image of living tissue and reveal what’s going on in living tissue second by second.  Developing a technique that gives high-speed images and functional information simultaneously will be challenging. Washington University in St. Louis engineers Lihong Wang and Mark Anastasio intend to meet those challenges by adapting a unique imaging technology their team is developing.

Wang, PhD, the Gene K. Beare Distinguished Professor of Biomedical Engineering, and Anastasio, PhD, professor and interim chair of Biomedical Engineering, recently received a four-year award totaling nearly $2.5 million to modify a high-speed imaging method called photoacoustic computed tomography or PACT, for use in research studies.

The team will enhance PACT technology by marrying two forms of energy: laser light and sound waves. Light alone can detect structures in living tissue, such as blood vessels in the brain or tumors.  But imaging methods using light alone can lose sensitivity because light scatters across all tissue making it difficult to detect anatomical structures in fine detail. Adding sound waves tells researchers what’s happening in whole animals in real time.

“Many other types of imaging technologies have been adapted for research animals, such as micro-CT scans, but none of these can give rich details in structure, together with function. This integrated approach is powerful because it’s both sensitive and can collect imaging data quickly,” says Wang, who is also affiliated with Siteman Cancer Center at Barnes-Jewish Hospital and Washington University School of Medicine.

Just as in medical diagnostics, researchers need to image living tissue and organs to study animal models of human disease.  Researchers rely on such models to study whether a particular drug is destroying a tumor or whether treatment for osteoarthritis is restoring worn-out fingers, Wang says.
Uniting PACT and ultrasound in a miniaturized device brings challenges on several fronts. One of the biggest challenges the team needs to face will be on the ultrasound side. Current PACT systems assume that sound waves travel in exactly the same way across any type of tissue. Wang and Anastasio say that’s not the case. Thick bones and gas pockets in tissue can distort data from sound waves, producing an image that’s inaccurate.

Existing PACT technology also doesn’t compensate for organ motion, such as caused by breathing and heartbeats. Anastasio is developing computational methods that will minimize distortions caused by these effects and will produce high quality PACT and ultrasound tomography images.

“This will permit for accurate whole body imaging of small animals and will facilitate comprehensive tissue characterization and disease monitoring,” Anastasio says.

Wang’s team has a long history of bringing innovative techniques to the imaging field.  His team is already adapting similar technology for breast cancer imaging. Photoacoustic tomography is being tested for breast cancer staging through lymph nodes, Wang says, without the exposure to radiation or open surgery.

Wang’s efforts have garnered numerous awards. In September 2012, Wang was one of 10 recipients chosen from among 600 applicants for the NIH Director’s Pioneers award, given to highly challenging projects that are potentially transforming in the field. Wang received $3.8 million over five years to support the work. Wang has also recently received funding from the National Science Foundation, using a special type of microscopy developed in his lab to study how cells take up oxygen. To date, Wang’s research on biophotonic imaging has been supported by more than 34 research grants totaling more than $41 million on which he is the principal investigator. Wang has also received the NIH’s FIRST award, the NSF’s CAREER Award, the Optical Society of America’s C. E. K. Mees Medal, IEEE’s Technical Achievement Award and IEEE’s Biomedical Engineering Award for groundbreaking contributions to photoacoustic tomography. A popular speaker, Wang has also given plenary lectures in the past year, at the SPIE Photonics Europe meeting, the Biomedical Optics (BIOMED) meeting in Miami, and the ISBI meeting in in Barcelona, Spain.
 
______________________________________________________________
The School of Engineering & Applied Science at Washington University in St. Louis focuses intellectual efforts through a new convergence paradigm and builds on strengths, particularly as applied to medicine and health, energy and environment, entrepreneurship and security. With 82 tenured/tenure-track and 40 additional full-time faculty, 1,300 undergraduate students, 700 graduate students and more than 23,000 alumni, we are working to leverage our partnerships with academic and industry partners — across disciplines and across the world — to contribute to solving the greatest global challenges of the 21st century.
 
Research reported in this publication was supported by the National Institute of Biomedical Imaging And Bioengineering of the National Institutes of Health under Award Number RO1EBo16963.
Abstract:
Two biomedical engineers are developing a new imaging technique with a $3 million grant from the National Institutes of Health.
ImageUrl: http://admin.seas.wustl.edu/ContentImages/newsphotos/Wang_research_news_article_72.jpg
DateAdded: 9/5/2013

Guérin named Welge Professor in Computer Science

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By Beth Miller
 

Roch Guérin, PhD, chair of the Department of Computer Science & Engineering at Washington University in St. Louis, has been named the Harold B. and Adelaide G. Welge Professor in Computer Science.

Guérin will be installed Oct. 8 in Stephen F. & Camilla T. Brauer Hall.
 
The professorship was established in 1988 by a university alumnus and his wife in the “hope that engineering education and research may be made more effective in present years, as well as years to come.”
 
Guérin is an international leader in the field of computer networking, both for his major research contributions and his dedication to serving the community. He is widely recognized for his contributions to understanding the fundamentals of data network design and how networks can be designed to provide desired quality of service guarantees. His work was among the earliest in this area and is credited with laying the foundation for later work. He also made early contributions in wireless and cellular networks.
 
“I am pleased to have the privilege of installing Roch Guérin as the Welge Professor at the School of Engineering & Applied Science,” says Ralph S. Quatrano, PhD, dean and the Spencer T. Olin Professor. “His strong national and international reputation for his research and experience, as well as his commitment to outstanding education, makes him an excellent representative of this professorship. We are grateful to the Welges for their generosity.”
 
Harold Brinton Welge earned a bachelor’s degree in architectural engineering in 1930 and a master’s degree in structural engineering in 1933, both from the university. He began his career with the City of St. Louis Department of Public Utilities, then left in 1941 to join Procter & Gamble, where he spent more than 26 years as a mechanical engineer and administrator in St. Louis and Cincinnati before returning to work for the St. Louis Water Division. He retired in 1979 and died in 1990.
 
Adelaide Guinn Welge earned a bachelor’s degree in general science and a master’s degree in mathematics, both from the University of Pittsburgh. She worked as a buyer for a major department store in Pittsburgh before marrying Mr. Welge in 1939. Her career took her on business trips to Europe, where she became interested in fashion design and ornithology. She died in 1996.
 
The Welges traveled extensively and generously supported community organizations and scholarships, including the Conway B. Briscoe Scholarship at Washington University, named in honor of Mr. Welge’s friend at the St. Louis Water Division, as well as scholarships for students in Blair County, Pa., and elsewhere. 
 
The Department of Computer Science & Engineering has an exceptional reputation for interdisciplinary education, innovative research and exceptional faculty. One-third of its faculty has earned the National Science Foundation's prestigious Faculty Early Career Development (CAREER) Award. With more than $5 million in annual research expenditures, together with the impact of its technology on industry and research, the placement of graduates and its close connection to the School of Medicine, the department has established an unmatched environment to train the next generation of leaders in computer science and engineering.
 
Guérin joined Washington University July 1 from the University of Pennsylvania, where he was the Alfred Fitler Moore Professor of Telecommunications Networks and professor of electrical and systems engineering and computer and information science. From 2001-04, Guérin was on leave from Penn to start Ipsum Networks, which pioneered the concept of route analytics for managing IP networks.
 
Prior to joining the faculty at Penn, he was in a variety of technical and management positions at the IBM T.J. Watson Research Center in Yorktown Heights, N.Y.
 
A Paris native, Guérin earned master’s and doctoral degrees in electrical engineering from the California Institute of Technology (CalTech) and a bachelor’s degree from ENST Paris.
 
He received the IEEE (Institute of Electrical and Electronics Engineers) INFOCOM Achievement Award and the IEEE INFOCOM Best Paper Award in 2010; the IEEE Technical Committee on Computer Communications (TCCC) Outstanding Service Award in 2009 and was elected an IEEE Fellow in January 2001. He was elected an ACM (Association for Computing Machinery) Fellow in 2006, and received the IBM Outstanding Innovation Award in 1994.
 
He has published research in a variety of journals and served on advisory boards of international telecommunications companies. He is now on the scientific advisory board of Simula Research Laboratory in Norway.
 
The professorship was previously held by former department chair Gruia-Catalin Roman, PhD.
_______________________________________________________
The School of Engineering & Applied Science at Washington University in St. Louis focuses intellectual efforts through a new convergence paradigm and builds on strengths, particularly as applied to medicine and health, energy and environment, entrepreneurship and security. With 82 tenured/tenure-track and 40 additional full-time faculty, 1,300 undergraduate students, 700 graduate students and more than 23,000 alumni, we are working to leverage our partnerships with academic and industry partners — across disciplines and across the world — to contribute to solving the greatest global challenges of the 21st century.
 
Abstract:
Roch Guérin, PhD, will be installed Oct. 8 as the Harold B. and Adelaide G. Welge Professor in Computer Science.
ImageUrl: http://admin.seas.wustl.edu/ContentImages/newsphotos/Guerin_news_article_72.jpg
DateAdded: 9/6/2013

Russell gives back to university through mentoring

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By Beth Miller

When Boeing engineer Nathan Russell spoke to a group of high school students at the School of Engineering & Applied Science’s Explore Engineering event in June, he could relate to them well.

From elementary school on, Russell was very interested in science and thought he would follow in the family’s footsteps and go into the medical field. However, while studying biology and anatomy, he realized medicine was not for him. A suggestion by his mother — and hours spent tinkering with his father’s Corvette — steered him toward a career in engineering.
 
Little Rock, Ark.-native Russell earned master’s degrees in mechanical and electrical engineering at Washington University in St. Louis while working full-time as an electrical engineer at The Boeing Co. He earned a bachelor’s degree in mechanical engineering with a minor in physics from University of Arkansas, through which he took advantage of the cooperative education (co-op) program to complete four terms at Boeing in St. Louis. When he was hired full-time at Boeing in 2005, he knew he wanted to continue his engineering education at Washington University.
 
“Engineering is really about teaching analytical- and critical-thinking skills, but it’s also helpful in developing a sound technological knowledge base,” Russell says. “When I went back to get an electrical engineering degree at Wash U, the classes were directly related to my job. It was great to relate to the theory and insight that form the basis of the computer codes that I use daily.”
 
At Boeing, Russell works in Phantom Works, the company’s advanced design division for its defense, space and security businesses. As an electrical engineer, Russell builds computer models and simulations to understand the way electromagnetic energy interacts with aircraft and their components.
 
“I like working on the cutting edge — developing that next product that might be five, 10, 15 or 20 years away from development,” Russell says. “Part of my job is to explain to customers the implications of their idea on size, weight, cost and complexity. I think the good engineers are the ones who can really work with the customer hand in hand and develop a great working relationship.”
 
But there’s a catch to working on the cutting edge, Russell says.
 
“We can devote months or years of effort to something that for whatever reason doesn’t work out, or has to get tabled, or funding runs out, or priorities change,” he says. “I think what makes it so rewarding is the challenge.”
 
Russell’s experience at Washington University led him to stay involved with the university through a mentoring program pairing students from the School of Engineering & Applied Science and Olin Business School with Boeing employees. The program is designed to help students with personal and academic development. He joined as a mentor in 2010 and now directs the program, which has about 20 students. Russell’s wife, Gayle, also is a mentor and a WUSTL alumna, with a master of science in finance from Olin Business School. With an undergraduate degree in mechanical engineering, she also works at Boeing as a systems engineer.
 
“It’s one way I can stay in touch with the university, and it’s a great way to give back to Wash U,” he says. “My wife and I are not at the point where we can donate a new building, but we can donate our time and effort.”
 
This past spring, Russell added a second arm to the mentoring program, this time focusing on technical mentoring. Fueled by his love of cars and his mentoring relationship with Brian Aggrey, a senior majoring in mechanical engineering and a member of the WUracing team, Russell brought members of the Formula SAE-WUracing team to Boeing to work with structural engineers on the design of the team’s racecar.
 
“The students bring their laptops and pull up their CAD models, then our engineers can troubleshoot and provide feedback,” Russell says. “It’s something that we’ll pick up again this year, and I’d like to bring in an aerodynamicist and other engineers to provide pointers.”
 
Russell knows how valuable those pointers can be to a student, because he got them when he was in the co-op program at Boeing, where he worked on the wing structural design of the F-18.
 
“It was a great experience because I was sitting next to structural analysts, so I could work on a part and tweak it, then they would show me why it worked or didn’t work,” he says. “So many of the employees there are supportive of the co-op and intern programs because they were interns or in the co-op themselves.”
Abstract:
Alumnus Nathan Russell gives his time to Engineering students as his way of giving back to his alma mater.
ImageUrl: http://admin.seas.wustl.edu/ContentImages/newsphotos/Russell_news_article_72.jpg
DateAdded: 8/22/2013

Iron uptake by plants focus of I-CARES grant

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By Beth Miller
 

Both humans and plants need iron in their diets, or else they get sick and don’t grow. Humans can eat iron-rich foods or a supplement, but for plants, the process is more complicated, as iron in the soil has to be dissolved before the plant can absorb it.

With a one-year grant from Washington University’s International Center for Advanced Renewable Energy & Sustainability (I-CARES), researchers at Washington University in St. Louis plan to use some high-tech methods to better understand the processes, mechanics and interfaces that plants use to move iron from the soil, through water and into the plant.
 
“Iron is hard to move from the soil into the plant because it has to dissolve in something, but it is notorious for its low solubility,” says Daniel E. Giammar, PhD, the Harold D. Jolley Associate Professor of environmental & chemical engineering at Washington University in St. Louis. “We are trying to determine how the iron gets from the soil mineral into the water by interacting with a range of compounds that we know plants release.”
 
Giammar and Jeffrey G. Catalano, associate professor of earth & planetary sciences, both have expertise in aquatic systems — Giammar in aquatic chemistry, and Catalano in environmental geochemistry and mineralogy. The two Washington University investigators are combining forces with Stephan M. Kraemer, PhD, chair of geochemistry and head of the Department of Environmental Geosciences at the University of Vienna, and with Ivan Baxter, PhD, USDA research scientist at the Donald Danforth Plant Science Center. Kraemer will be at Washington University on sabbatical in early 2014.
 
The team will use a technique called scanning transmission X-ray microscopy (STXM) to measure the molecular changes in iron oxides by their reactions with natural compounds. STXM uses a high-powered X-ray beam focused to about 30 nanometers, providing the researchers with nanoscale maps of the elements and their oxidation states.
 
“STXM is a tool that uses the very bright focused X-rays and is only available at a few places in the United States,” Giammar says. “With STXM, we can scan across the material and understand whether the iron is in an oxidized or reduced form, or whether it is more soluble. There may be some catalytic effects that make the whole iron pool more available.”
 
Overall, the researchers seek to determine the mechanisms of how iron mobilizes when particular molecules and elements are in place, with the theory that they are working together to speed up key processes in which the plant dissolves and absorbs the iron.
 
As part of the grant funding, the team plans to hold a one-day Soil-Water-Plant Summit next spring to foster additional interactions between the university’s research strengths in environmental chemistry and in plant science.
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The School of Engineering & Applied Science at Washington University in St. Louis focuses intellectual efforts through a new convergence paradigm and builds on strengths, particularly as applied to medicine and health, energy and environment, entrepreneurship and security. With 82 tenured/tenure-track and 40 additional full-time faculty, 1,300 undergraduate students, 700 graduate students and more than 23,000 alumni, we are working to leverage our partnerships with academic and industry partners — across disciplines and across the world — to contribute to solving the greatest global challenges of the 21st century.
 
Abstract:
Associate Professor Dan Giammar and a group of researchers will study the processes, mechanics and interfaces that plants use to move iron from the soil, through water and into the plant.
ImageUrl: http://admin.seas.wustl.edu/contentimages/facultyphotos/Giammar_Dan.jpg
DateAdded: 8/28/2013

Blue-green algae a five-tool player in converting waste to fuel

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By Tony Fitzpatrick
 

In the baseball world, a superstar can do five things exceptionally well: hit, hit for power, run, throw and field.

In the parallel universe of the microbiological world, there is a current superstar species of blue-green algae that, through its powers of photosynthesis and carbon dioxide fixation, or uptake, can produce (count 'em) ethanol, hydrogen, butanol, isobutanol and potentially biodiesel. Now that’s some five-tool player.
 
In baseball, you call that player Willie Mays or Mike Trout. In microbiology, it goes by Synechocystis 6803, a versatile, specialized bacterium known as a cyanobacterium. It makes pikers out of plants when it comes to capturing and storing energy from photosynthesis, and it’s a natural in converting the greenhouse gas carbon dioxide (CO2) to useful chemicals that could help both tame global warming and sustain energy supply. In addition, genetically engineered Synechocystis 6803 also has the potential to make commodity chemicals and pharmaceuticals.
 
Granted, that’s mostly in laboratories, on the liter scale.  Because of its versatility and potential, this microscopic organism is one of the most studied of its kind since it was discovered in 1968. But just as in baseball, where “can’t miss” five-tool prospects are signed yearly with great expectations and never achieve their promise, Synechocystis 6803 has yet to deliver.
 
Fuzhong Zhang, PhD, assistant professor of energy, environmental & chemical engineering at Washington University in St. Louis, works with Synechocystis 6803 — as well as other microbes and systems — in the areas of synthetic biology, protein engineering and metabolic engineering, with special focus on synthetic control systems to make the organism reach its untapped prowess.  Zhang says the biotech world has to overcome several challenges to put the engineered microbes in the applications stage. Zhang will be in the thick of them.
 
“My goal is to engineer microbes and turn them into microfactories that produce useful chemicals,” Zhang says.  “Synechocystis is particularly interesting because it can use CO2 as the only carbon source. Engineering this bacterium would turn the fixed CO2 into metabolites that can be further converted to fuels and other chemicals through designed biosynthetic pathways.”
Traditional chemical production requires high pressure and temperatures and literally tons of chemical solvents, but the microbial approach is very eco-friendly: Once the engineered cyanobacteria start to grow, all they need are water, basic salts and the CO2.
 
In an academic “scouting report” of Synechocystis, published in the August 2013 Marine Drugs, Zhang and colleagues summarize recent research and conclude that production speed has to be increased and new genetic tools must be developed to control the biochemistry inside Synechocystis so that chemical productivities will be improved to make this technology economically viable. Current industry specifications for potentially scalable chemical production are roughly 100 grams per liter of fuel or chemicals.  Presently, the laboratory production is generally less than 1 gram per liter, and the efficiency is very low.
 
Zhang says the research community needs better tools to control gene expression. For example, promoters — little stretches of DNA before genes of interest that help control gene expression — with predictable strength are needed. They also need better cellular biosensors that can sense key metabolites and control the production of vital proteins that create the desired chemicals. And they need to engineer the organisms’ circadian rhythms (day/night) to someday produce organisms that work around the clock making a fuel or chemical. Natural Synechocystis 6803, for instance, performs a yeoman’s task of producing and storing energy molecules during the day through photosynthesis, but at night, it uses a different set of metabolisms to consume the stored energy. The natural circadian rhythm has to be rewired to make a biofuel 24 hours a day.
 
Zhang’s research includes developing gene expression tools, new chemical biosynthetic pathways and circadian control tools for cyanobacteria.
 
“I’m confident that in two or three years we will have more potent tools to engineer gene expression levels and timing, which will speed up the process more accurately and efficiently,” he says.
 
Also, his group has been working to develop dynamical control systems in microbes that function like meters and valves in a traditional chemical production plant – the meters calculate pressure and flow, and the valves control them.
 
“It’s a biological version of the valve-and-meter model to control the flow of metabolites that make the production of fuel and chemicals more efficiently,” he says. 
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Yu Y, You L, Liu D, Hollinshead W, Tang Y, Zhang F. Development of Synechocystis sp. PCC 6803 as a Phototrophic Cell Factory. Marine Drugs 2013, 11, 2894-2916; doi: 10.3390/nd11082894. 
 
Funding for this research was provided by the National Science Foundation.
 
The School of Engineering & Applied Science at Washington University in St. Louis focuses intellectual efforts through a new convergence paradigm and builds on strengths, particularly as applied to medicine and health, energy and environment, entrepreneurship and security. With 82 tenured/tenure-track and 40 additional full-time faculty, 1,300 undergraduate students, 700 graduate students and more than 23,000 alumni, we are working to leverage our partnerships with academic and industry partners — across disciplines and across the world — to contribute to solving the greatest global challenges of the 21st century.
Abstract:
Fuzhong Zhang, PhD, and Yinjie Tang, PhD, are working with a blue-green algae to convert waste to fuel.
ImageUrl: http://admin.seas.wustl.edu/ContentImages/newsphotos/Tang_Zhang_news_article_72.jpg
DateAdded: 8/26/2013

Wang wins IEEE Biomedical Engineering Award

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By Beth Miller

Lihong Wang, PhD, will receive the 2014 IEEE Biomedical Engineering Award, the highest honor conferred by the Institute of Electrical and Electronics Engineers (IEEE) in this field.

Wang, the Gene K. Beare Distinguished Professor of Biomedical Engineering at Washington University in St. Louis, was selected for his pioneering contributions to the field of photoacoustic tomography, a novel imaging technology he developed that uses light and sound to measure change.
Wang will receive a bronze medal, a certificate and an honorarium.

“This award acknowledges Lihong Wang as an innovator of imaging technology that will benefit a wide range of important preclinical and clinical applications, including the detection of cancer,” says Mark Anastasio, PhD, interim department chair and professor of the Department of Biomedical Engineering. “We are pleased that IEEE will recognize Lihong for his groundbreaking work.”

A leading researcher on new methods of biomedical imaging, Wang has received more than 34 research grants as the principal investigator with a cumulative budget of more than $41 million. His research on non-ionizing biophotonic imaging has been supported by the National Institutes of Health, National Science Foundation (NSF), the U.S. Department of Defense, The Whitaker Foundation and the National Institute of Standards and Technology.

Wang and his lab were the founders of a new type of medical imaging that gives physicians a new look at the body’s internal organs. Called functional photoacoustic tomography, the technique relies on light and sound to create detailed pictures of tissue physiology deep inside the body and may eventually help doctors diagnose cancer earlier than is now possible and to more precisely monitor the effects of cancer treatment — all without the radiation involved in X-rays and CT scans or the expense of MRIs.

In September 2012 he received one of 10 NIH Director’s Pioneer Awards from among 600 applicants. The award supports individual scientists of exceptional creativity who propose pioneering — and possibly transforming — approaches to major challenges in biomedical and behavioral research. He also has received the NIH FIRST, the NSF’s CAREER Award, the Joseph W. Goodman Book Writing Award, the Optical Society of America’s C. E. K. Mees Medal and IEEE's Technical Achievement Award for seminal contributions to photoacoustic tomography and Monte Carlo modeling of photon transport in biological tissues and for leadership in the international biophotonics community.

Wang earned a doctorate in electrical engineering from Rice University and bachelor’s and master’s degrees from Huazhong University of Science & Technology.

_____________________________________________________
The School of Engineering & Applied Science at Washington University in St. Louis focuses intellectual efforts through a new convergence paradigm and builds on strengths, particularly as applied to medicine and health, energy and environment, entrepreneurship and security. With 82 tenured/tenure-track and 40 additional full-time faculty, 1,300 undergraduate students, 700 graduate students and more than 23,000 alumni, we are working to leverage our partnerships with academic and industry partners — across disciplines and across the world — to contribute to solving the greatest global challenges of the 21st century.

Abstract:
Lihong Wang, PhD, will receive the 2014 IEEE Biomedical Engineering Award, the highest honor conferred by the Institute of Electrical and Electronics Engineers (IEEE) in this field.
ImageUrl: http://admin.seas.wustl.edu/contentimages/facultyphotos/Wang_100.jpg
DateAdded: 7/29/2013

‘Seeing it in practice’: Engineering students learned around the world in summer experiences

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By Beth Miller 

At Washington University in St. Louis, students in the School of Engineering & Applied Science learn more than how to be an engineer. With opportunities to go abroad to get hands-on experience beyond what they learn in the classroom, they also learn to be leaders in a global society.

Sixteen WUSTL students went to Brisbane, Australia, for the International Experience program, sponsored by the Department of Energy, Environmental & Chemical Engineering and the McDonnell Global Energy and Environment Partnership (MAGEEP). The International Experience visits a different country each summer, in collaboration with MAGEEP partner universities, providing students with opportunities to learn how other countries handle energy and environmental challenges. The international trip is part of course EECE 401, International Experience in Energy, Environmental & Chemical Engineering, which includes pre-program seminars in the spring, the summer trip, and a fall course to complete follow-up projects and presentations.

The trip included lectures at the University of Queensland (UQ) in aquatic engineering, solar and geothermal energy, wastewater treatment, carbon dioxide sequestration, biofuel development, electricity market and the economic and social impact of energy and environmental development. In addition, the group visited the UQ’s solar array; a biofuel generation lab, including algae ponds; several labs; the Rio Tinto Boyne Smelter; and a coalmine, in addition to some recreational trips. The students also prepared a presentation on what they had learned.

Pratim Biswas, PhD, department chair and the Lucy & Stanley Lopata Professor, who accompanied the students on the second half of the trip, said it was a great opportunity to see things in full scale.

“Here, the students are in a classroom learning all the theory, but they got to see it in practice,” he says. “They could see the entire supply chain in the energy domain, from the mines where the coal comes from, how it is transported, how it’s shipped internationally then in use at the power plant. They also got to see some new technology-based power generation that we don’t have here in the United States.”

Hanna Newstadt, a junior majoring in chemical engineering, says she was interested in learning about chemical engineering from a different perspective.

“One of the big things I came away with was the different resources available in Australia,” Newstadt says. “They are very dependent on coal, and they have a lot of uranium that they don’t use. It was very interesting to see the energy profile compared to that in the United States.”

Jessica Rudnick, a junior majoring in environmental earth science, says she was impressed by some of the technologies she saw in use.

“I really liked the algae ponds at the UQ research facility,” she says. “They plan to couple the open algae reactor with an agriculture system, and that’s something I never thought of.”

Rudnick says the visit to the open strip coalmine left a lasting impression.

“I’d never seen anything like that before – it ripped open my heart,” Rudnick says. “It was an amazing sight – it gave you a sense of the scale and the size of energy production. It was terrible, but really amazing as to how powerful humans can be to create these canyons and mountains.”


<P><IMG src='http://admin.seas.wustl.edu/ContentImages/newsphotos/international_experience_400x300.jpg'></p>Students on the International Experience trip to Brisbane, Australia, stand among 1,808 solar panels on top of the University of Queensland Center, part of UQ's Solar Array, a 1.22-megawatt photovoltaic solar array that supplies 5 percent peak time energy use at the university.


Newstadt, who this summer worked in the lab of Jay Turner, PhD, associate professor and director of undergraduate programs, through the National Science Foundation’s Research Experience for Undergraduates program, said the trip was a great experience.

“It’s very different from learning in the classroom,” she says. “I feel like I have more direction in what I want to do after college.”

The course and the trip are led by Ruth Chen, PhD, professor of practice, director of the International Experience Program and of the master of engineering program in Energy, Environmental & Chemical Engineering. Chen, who has led five prior International Experience trips, says this year’s trip had high-quality classroom instruction coupled with site visits related to the lectures.

“We try to learn from the strength of each school and each country and take home how they solve their energy and environmental challenges,” Chen says. “The students bring home different perspectives that will be useful pointers for working in energy and environmental challenges in the United States. They are going to be very good engineers and world citizens.”

She credited Chris Greig, director of the University of Queensland Energy Initiative, for the successful outcome of the 16-day trip.

“He has tremendous experience and connections, he understands our curriculum, and he was able to stretch the students in a direction that’s comfortable for them,” Chen says.

Grieg works closely with Richard Axelbaum, PhD, the Stifel & Quinette Jens Professor of Environmental Engineering Science, on an international network of universities collaborating to develop innovative ways to cleanly burn coal for energy. Axelbaum also accompanied the students on the first part of the trip.

Grieg says he was so impressed by the group that he is considering developing a similar program for the University of Queensland.

“I think the students gained a new perspective on global energy markets and environmental challenges through both their lectures at UQ and the industry site visits,” Grieg says. “They would have been particularly struck by the level of investment in energy commodity export capacity, which is very different scenario to the USA.

“I found the Wash U students to be very enthusiastic, engaging and eager to learn both in relation to the energy and environment content but also in relation to the cultural and geographic characteristics of Australia,” Grieg says. “I was particularly struck by their politeness and genuine appreciation of everything UQ arranged for them.”

On some of the longer bus rides between locations, Biswas and Chen gave interactive lectures to the students on topics such as career options and choices. Also, after each visit to a facility and on the ferry to classes, the students and professors discussed what they saw.

Seven students stayed in Brisbane until mid-August in internships, working on supplying solar energy to the outback, water treatment, biofuel, seam gas extraction, environmental remediation and nanotechnology.

The next International Experience trip will be to Singapore in 2014. Students will work with National University of Singapore (NUS) and Yale NUS. For more information, visit http://eece.wustl.edu/undergraduateprograms/Pages/international-experiences.aspx.

In late May, Frank Yin, MD, PhD, professor of biomedical engineering, took a group of five rising seniors majoring in biomedical engineering on a two-week trip to Hong Kong and China. They worked with students from Hong Kong Polytechnic University (HKPU) learning to fit and make custom orthotics for young children with cerebral palsy in rural China.

The students had one week of training at HKPU, traveled to the Mei Zhou Rehabilitation Center in China to take castings for the orthotics, then traveled back to Hong Kong to make them. Once complete, they went back to the clinic to present the finished orthotics to the children and to make sure they fit correctly.

While the WUSTL students knew the trip had a service component, working with the children and their parents had a big impact on them.

Nathan Brajer, a senior majoring in biomedical engineering who is planning to go into medicine, says the trip was a good opportunity to participate in hands-on work that had the potential to help others.

“I learned how important it is to develop a trusting relationship with the people you’re providing health care to,” Brajer says. “When we were trying to form molds of the children's limbs, many became scared and kicked and screamed and cried. All of this kept us from making accurate molds, which was a very important part of making the orthotics. Once we learned how to build trust with the kids, help them understand what we were doing and calm them, all of the technical parts of the process became much easier.”

Sumeet Shah, a senior majoring in biomedical engineering, says the WUSTL group also learned to work as a team during the three days they had to build 40 pairs of orthotics.

“We had an assembly line process, and those were rough days,” he says. “But we got a lot done. We had time to absorb and understand what we were supposed to do, and it was great to work together as a team with the HKPU students.”

Seul Ah Kim, who had spent the prior semester studying in Hong Kong, said she learned several things.

“I was a bit surprised by these patients’ energy since most of them had quite severe cerebral palsy,” she says. “Many of them had no control over their bodies, yet they had a great positive energy. The trip also changed my perspective of people with disabilities.”

Brajer recalls a defining moment on the trip.

“My best experience on the trip was bringing back a finished orthotic to one child in particular, whom I had worked with during our first trip to the clinic, and seeing the look of joy on his face and his mother’s face,” Brajer says. “Seeing how much it meant to them really gave me an unparalleled feeling of accomplishment.”

Abstract:
Students in the School of Engineering & Applied Science travelled around the world this summer to get hands-on experience and to learn to be leaders in a global society.
ImageUrl: http://admin.seas.wustl.edu/ContentImages/newsphotos/international_experience_news_article_72.jpg
DateAdded: 8/29/2013
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