Oak Ridge Today

ORNL researchers Buchanan, Liang, Mayes named AAAS fellows

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ORNL AAAS Fellows 2014

New fellows of the American Association for the Advancement of Science from Oak Ridge National Laboratory are, from left, Michelle Buchanan, Liyuan Liang, and Melanie Mayes. (Photo courtesy ORNL)

 

Three staff members at Oak Ridge National Laboratory have been named fellows of the American Association for the Advancement of Science for scientific contributions that range from administrative leadership to discoveries in the environmental sciences.

Michelle Buchanan, Liyuan Liang, and Melanie Mayes and are among those to receive this year’s recognition to AAAS members by their peers. AAAS is the world’s largest general scientific society and elects fellows based on their distinguished contributions to the advancement of science or its applications, a press release said.

Buchanan is ORNL’s associate laboratory director for physical sciences, where she guides the Chemical Sciences, Materials Science, and Technology and Physics divisions, as well as the Center for Nanophase Materials Science.

She was elected “for exceptional technical leadership and service in the chemical and physical sciences, and for contributions to setting the nation’s research priorities.” [Read more…]

Chinese supercomputer stays No. 1, Titan at ORNL still No. 2

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Jeff Nichols and Titan at ORNL

Jeff Nichols, associate director for computing and computational sciences at Oak Ridge National Laboratory, in front of Titan, which was the world’s top supercomputer in November 2012 but is now ranked No. 2. (Photo courtesy of ORNL)

 

For the fourth consecutive time, Tianhe-2, a supercomputer developed by China’s National University of Defense Technology, has retained its position as the world’s number one system. Meanwhile, Titan at Oak Ridge National Laboratory, which was the top supercomputer in November 2012, remains number two.

Tianhe-2 is capable of performing at 33.86 petaflops, or 33.86 quadrillions of calculations per second, on a benchmark test known as Linpack.

The rankings are from the 44th edition of the twice-yearly TOP500 list of the world’s most powerful supercomputers, which was announced Monday in Mannheim, Germany; Berkeley, California; and Knoxville. Tianhe-2 has been in the top spot four consecutive times, and Titan has been number two each time. [Read more…]

Alexander: World’s fastest supercomputer will again be at ORNL

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Summit Supercomputing Press Conference

U.S. Rep. Chuck Fleischmann, second from left, a Tennessee Republican, at a Friday morning press conference at the U.S. Capitol in Washington, D.C., with Energy Secretary Ernest Moniz, right; Senator Lamar Alexander, a Tennessee Republican, center; and representatives Bill Foster and Dan Lipinski. (Submitted photo)

 

U.S. Senator Lamar Alexander

Lamar Alexander

Note: This story was last updated at 11:25 a.m.

Oak Ridge National Laboratory will have the world’s fastest next-generation supercomputer, U.S. Senator Lamar Alexander announced at a Friday morning press conference with U.S. Energy Secretary Ernest Moniz.

Alexander, a Tennessee Republican, said the new computer will provide five times the performance of Titan, the current system, and support advanced scientific and materials research to improve economic and national security.

The “next-generation hybrid supercomputer” will be called Summit, and it will be delivered in 2017, the senator said.

“Once again the world’s fastest computer will be in the United States, and once again it will be at Oak Ridge,” Alexander said. “Supercomputing has helped Tennessee become a center for advanced manufacturing with the arrival of new companies, including several in the auto industry, creating thousands of good-paying jobs. Tennessee can continue to thrive and create many more good jobs with the use of this new supercomputer.” [Read more…]

ORNL technology transfer continues strong upward trend

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Mike Paulus Technology Transfer

Mike Paulus, director of Technology Transfer, says initiatives like SPARK! have been effective at connecting entrepreneurs, investors, and industry experts with ORNL technologies and capabilities. (Submitted photo)

 

New methods are improving connections between private businesses and technology from the Oak Ridge National Laboratory, with 101 licenses and options executed during the last three years.

Mike Paulus, director of Technology Transfer, attributes the growth in large part to the Technology Innovation Program, Bridging the Gap, and SPARK! These programs helped the lab double the number of licenses for the fiscal years 2012-2014 compared to 2009-2011, and Paulus expects a new initiative, the Invention to Innovation Webinar Series, to help maintain the upward trend.

“We have a talented staff that has worked very hard to identify, develop, and market high-potential technologies that provide the best opportunities to licensees,” Paulus said. “Our two-pronged approach focuses on increasing the overall deal volume while at the same time concentrating on our most promising technologies.” [Read more…]

ORNL staff help students prepare for FIRST LEGO League competition

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ORNL First Lego League 2014

Brian Peters, right, a design engineer for nuclear systems with US ITER at Oak Ridge National Laboratory, works with Jessey Yang, left, and Victoria “Tori” Mullins during a FIRST LEGO League practice session at the National Transportation Research Center. (Photo courtesy ORNL/UT-Battelle)

 

About 30 students ages nine through 14 are gearing up for the 2014-15 FIRST LEGO League competition with weekly training sessions at the National Transportation Research Center in West Knoxville. NTRC is part of the U.S. Department of Energy’s Oak Ridge National Laboratory, and ORNL operating contractor UT-Battelle co-sponsors the LEGO League tournament.

“This year’s theme is ‘World Class Learning Unleashed,’” said Claus Daniel, an ORNL researcher who’s coaching one of three teams meeting at the NTRC. “Part of what the students are doing is defining a question, research, how people learn about the question nowadays and then original ideas to improve the learning process.” [Read more…]

Los Alamos National Lab director to give talk at UT on Oct. 1

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Charles McMillan

Charles McMillan

Charles F. McMillan, nuclear physicist and director of Los Alamos National Laboratory, will give the Howard H. Baker Jr. Center for Public Policy’s annual Distinguished Global Security Lecture on October 1 at the University of Tennessee in Knoxville.

McMillan will speak on “The Timeline of Technology” at 5:30 p.m. in the Toyota Auditorium at the Baker Center, 1640 Cumberland Avenue. The event is free and open to the public.

McMillan’s lecture will look at how innovations from the previous century are being used to solve today’s national and global security, energy, and environmental issues. Then he’ll pose a question to policy makers: “Are we prepared for the policy needed in the 22nd century with the scientific and technical expertise we have today?” [Read more…]

UT engineering students help ORNL, Local Motors print drivable 3D car

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3D Car

John Rogers, co-founder and CEO of Local Motors, left, and Douglas Woods, president of the Association for Manufacturing Technology, drive away from the International Manufacturing Technology Show in Chicago over the weekend in a car printed with the help of UT students. (Photo courtesy UT)

 

KNOXVILLE—The only “car” that most people associate with printers is a “car-tridge” of ink, but that may soon change thanks in part to several students at the University of Tennessee in Knoxville.

UT, Oak Ridge National Laboratory, Local Motors, Cincinnati Incorporated, and Oak Ridge Associated Universities teamed up to print a working, drivable car over the weekend at the International Manufacturing Technology Show in Chicago.

The Strati 3D, officially produced by Local Motors, which has an office on Market Square in Knoxville, highlighted the show and placed what sounds like a product of science fiction firmly in the realm of reality.

“This brand-new process disrupts the manufacturing status quo,” said John B. Rogers Jr., chief executive officer of Local Motors. “It changes the consumer experience and proves that a car can be born in an entirely different way.” [Read more…]

DOE program funds alloy research led by UT; ORNL collaborates

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Haixuan Xu

Haixuan Xu

KNOXVILLE—An international research team led by an assistant professor at the University of Tennessee in Knoxville has received a grant to help with work involving a key component of nuclear reactors.

The U.S. Department of Energy grant is worth $800,000 over three years, and it has been awarded to UT Assistant Professor Haixuan Xu. It’s part of the Nuclear Energy University Programs funding and will be used to work on a pair of particular steel alloys, a press release said.

“Getting support on this will allow us to investigate and understand the defect evolution in these materials,” said Xu, of the UT Department of Materials Science and Engineering. “What we hope to gain is fundamental insight into the effects of radiation on the alloys so that we can better predict and detect how they will break down over time and adjust the materials accordingly.”

The alloys in question would be used in sodium-cooled reactors. Xu’s research is important because little is known about how the materials stand up to high levels of radiation over time. [Read more…]

ORNL welcomes first Liane Russell fellows

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Liane Russell Reception at ORNL

Lab Director Thom Mason and award-winning scientist Liane Russell welcomed Celia Shiau, Huiyuan Zhu, and Huina Mao at a Thursday reception. Shiau, Mao, and Zhu are the first early-career researchers coming to Oak Ridge National Laboratory under a fellowship named for Russell. (Photo courtesy ORNL)

 

Renowned mammalian geneticist Liane Russell returned Thursday to Oak Ridge National Laboratory to congratulate the first recipients of a new fellowship named in her honor.

ORNL created the Liane Russell Distinguished Early Career Fellowship to attract a diverse and promising work force of early career scientists and engineers whose interests align with DOE missions.

“It is gratifying to see these opportunities being made available to a diverse group of talented young people because, sadly, in the scientific fields this has not always been the case,” Russell said. “For this reason I am particularly honored to have my name attached to the fellowships.”

The competitive, three-year fellowship is aimed toward establishing long-term research careers at ORNL. It is available to outstanding scientists and engineers who have received their doctorate degrees within the past seven years, with emphasis given to attracting women and minority candidates.

The first three Russell fellows, recognized at Thursday’s reception, are: [Read more…]

Rubber meets the road with new ORNL carbon, battery technologies

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Recycled Tire Battery Schematics

ORNL researchers’ goal is to scale up the recovery process and demonstrate applications as anodes for lithium-ion batteries in large-format pouch cells. (Image courtesy ORNL)

 

Recycled tires could see new life in lithium-ion batteries that provide power to plug-in electric vehicles and store energy produced by wind and solar, say researchers at Oak Ridge National Laboratory.

By modifying the microstructural characteristics of carbon black, a substance recovered from discarded tires, a team led by Parans Paranthaman and Amit Naskar is developing a better anode for lithium-ion batteries. An anode is a negatively charged electrode used as a host for storing lithium during charging.

The method, outlined in a paper published in the journal RSC Advances, has numerous advantages over conventional approaches to making anodes for lithium-ion batteries.

“Using waste tires for products such as energy storage is very attractive not only from the carbon materials recovery perspective but also for controlling environmental hazards caused by waste tire stock piles,” Paranthaman said.

The ORNL technique uses a proprietary pretreatment to recover pyrolytic carbon black material, which is similar to graphite but man-made. When used in anodes of lithium-ion batteries, researchers produced a small, laboratory-scale battery with a reversible capacity that is higher than what is possible with commercial graphite materials. [Read more…]

ORNL scientists uncover clues to role of magnetism in iron-based superconductors

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Magnetism of Iron-based Superconductors

Oak Ridge National Laboratory scientists used scanning transmission electron microscopy to measure atomic-scale magnetic behavior in several families of iron-based superconductors. (Photo courtesy ORNL)

 

New measurements of atomic-scale magnetic behavior in iron-based superconductors by researchers at Oak Ridge National Laboratory and Vanderbilt University are challenging conventional wisdom about superconductivity and magnetism.

The study published in Advanced Materials provides experimental evidence that local magnetic fluctuations can influence the performance of iron-based superconductors, which transmit electric current without resistance at relatively high temperatures.

“In the past, everyone thought that magnetism and superconductivity could not coexist,” said ORNL’s Claudia Cantoni, the study’s first author. “The whole idea of superconductors is that they expel magnetic fields. But in reality things are more complicated.”

Superconductivity is strongly suppressed by the presence of long-range magnetism—where atoms align their magnetic moments over large volumes—but the ORNL study suggests that rapid fluctuations of local magnetic moments have a different effect. Not only does localized magnetism exist, but it is also correlated with a high critical temperature, the point at which the material becomes superconducting. [Read more…]

Mayor, superintendent, others participating in JMS ice bucket challenge

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Thom Mason Ice Bucket Challenge

Oak Ridge National Laboratory Director Thom Mason took the ALS Ice Bucket Challenge on Wednesday afternoon. He then challenged Energy Secretary Ernest Moniz, Lawrence Berkeley National Laboratory Director Paul Alivisatos, and Los Alamos National Laboratory Director Charlie McMillan to do the same. Afterward, Mason said the experience was “bracing.” (Photos by Carlos Jones)

 

ORNL Director Mason took the challenge Wednesday

Oak Ridge Mayor Tom Beehan and Oak Ridge Schools Superintendent Bruce Borchers are participating in an ice bucket challenge at Jefferson Middle School on Friday.

Members of the JMS cross country team will administer the ice buckets.

“You are no doubt aware of the social media-fed phenomenon sweeping the nation in the past couple of weeks: the ALS Ice Bucket Challenge,” coach and JMS teacher Steve Reddick said. “As of today, the challenge has raised $41 million. Many of us have received challenges from friends and foes alike, and we’ve decided to stage a Mega-Ice Bucket Challenge at 4:15 p.m. after cross country practice tomorrow (Friday).” [Read more…]