Oak Ridge Today

Oak Ridge Robotics Academy teaches robotics engineering in week-long camp

Posted at
By Leave a Comment

Josie Fellers and Olivia Jones

Josie Fellers and teammate Olivia Jones assemble their robot’s arm at the ORAU Oak Ridge Robotics Academy. (Photo courtesy ORAU)

 

More than two dozen students from across East Tennessee recently spent a week designing, building, and programming robots during the Oak Ridge Robotics Academy.

Held at ORAU’s Center for Science Education, the week-long, free camp was led by Instructors Tad Douce and Ed Goodwin, both co-directors of the National Robotics Challenge, with help from Kayla Canario, the 2011 Extreme Classroom Makeover contest runner-up and the technology coordinator for Bearden Middle School.

The 6th annual ORAU Oak Ridge Robotics Academy included 26 students in seventh, eighth, and ninth grades.

Students were randomly placed into teams and faced daily engineering challenges such as programming their robots to solve a maze without being controlled or designing an arm to pick up a tennis ball.

“We call it a robotics academy, but it’s really an engineering academy,” Douce said. “Our main goal is to get the students to work with others, think logically and solve problems.” [Read more…]

Supercomputers: China’s Tianhe-2 still No. 1, ORNL’s Titan stays No. 2

Posted at
By Leave a Comment

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 fastest supercomputer in November 2012 but is now ranked No. 2. (Photos courtesy of ORNL/File photo October 2013)

 

For the fifth 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, according to the 45th edition of the twice-yearly TOP500 list of the world’s most powerful supercomputers. Tianhe-2, which means Milky Way-2, led the list with a performance of 33.86 petaflop/s (or quadrillions of calculations per second) on the Linpack benchmark.

At number two was Titan, a Cray XK7 system installed at the U.S. Department of Energy’s Oak Ridge National Laboratory. Titan, the top system in the United States and one of the most energy-efficient systems on the list, achieved 17.59 petaflop/s on the Linpack benchmark.

The only new entry in the Top 10 supercomputers on the latest list is at number seven—Shaheen II is a Cray XC40 system installed at King Abdullah University of Science and Technology, or KAUST, in Saudi Arabia. Shaheen II achieved 5.536 petaflop/s on the Linpack benchmark, making it the highest-ranked Middle East system in the 22-year history of the list and the first to crack the Top 10. [Read more…]

New pilot helps small businesses tap ORNL expertise

Posted at
By Leave a Comment

ORNL Manufacturing Demonstration Facility

Small businesses can gain access to ORNL resources such as the Manufacturing Demonstration Facility through a new U.S. Department of Energy voucher pilot. (Photo by ORNL)

 

Small companies in the advanced manufacturing, transportation, and building sectors have a new opportunity to partner with the U.S. Department of Energy’s Oak Ridge National Laboratory.

ORNL was among five national laboratories selected to participate in a new DOE small business voucher pilot that aims to connect small clean energy businesses with technical experts and world-class facilities at the national labs.

DOE’s Office of Energy Efficiency and Renewable Energy is funding the $20 million pilot as part of its National Laboratory Impact Initiative. ORNL will receive $5.6 million to conduct outreach, merit review, and matchmaking efforts for small business projects.

“We’re pleased to be given the opportunity to partner with smaller businesses who can take advantage of the world-class facilities at ORNL and other national laboratories across the country,” said ORNL’s Johney Green. “Through this pilot, we will help industry achieve their goals of developing innovative, energy-efficient products and being more competitive in the marketplace, particularly in manufacturing, building, and vehicle technologies.” [Read more…]

ORNL: Neutrons find ‘missing’ magnetism of plutonium

Posted at
By Leave a Comment

Doug Abernathy and Marc Janoschek

Doug Abernathy, left, ARCS instrument scientist at Oak Ridge National Laboratory, and Marc Janoschek, Los Alamos National Laboratory, prepare their sample for experiments at the Spallation Neutron Source. (Photo by ORNL)

 

Groundbreaking work at two U.S. Department of Energy national laboratories has confirmed plutonium’s magnetism, which scientists have long theorized but have never been able to experimentally observe. The advances that enabled the discovery hold great promise for materials, energy, and computing applications.

Plutonium was first produced in 1940, and its unstable nucleus allows it to undergo fission, making it useful for nuclear fuels as well as for nuclear weapons. Much less known, however, is that the electronic cloud surrounding the plutonium nucleus is equally unstable and makes plutonium the most electronically complex element in the periodic table, with intriguingly intricate properties for a simple elemental metal.

While conventional theories have successfully explained plutonium’s complex structural properties, they also predict that plutonium should order magnetically. This is in stark contrast with experiments, which had found no evidence for magnetic order in plutonium. [Read more…]

Tennant named director of UT-ORNL Joint Institute for Neutron Sciences

Posted at
By Leave a Comment

Alan Tennant

Alan Tennant

Alan Tennant has been appointed director of the Joint Institute for Neutron Sciences at Oak Ridge National Laboratory. The institute is a partnership between ORNL and the University of Tennessee in Knoxville.

“Neutrons are the future in characterizing materials, especially soft matter,” said Taylor Eighmy, vice chancellor for research and engagement at UT. “With Alan as director, we can begin to establish deep thought leadership at UT and ORNL in this growing field.”

Tennant assumes the directorship from Takeshi Egami, the founding director of JINS, who is stepping down after leading the institute for 11 years. Egami will remain as director emeritus as he continues to hold his distinguished scientist position at ORNL and teach at the university.

“I am grateful for Takeshi’s leadership as the founding director of JINS, and I look forward to working with Alan as he continues to propel neutron science at the institute,” Eighmy said. [Read more…]

Russell, scientist and environmental advocate, to be interviewed Thursday

Posted at
By Leave a Comment

Liane Lee Russell

Liane Lee Russell

Scientist and environmental advocate Liane “Lee” Russell will be interviewed in a Thursday meeting of Tennessee Citizens for Wilderness Planning and Oak Ridge Heritage and Preservation Association.

“She will share her many and varied experiences both as a highly successful scientist and truly dedicated and equally effective environmental advocate,” a press release said.

The meeting starts at 7 p.m. Thursday, July 9, at the Midtown Community Center at 102 Robertsville Road in the historic Wildcat Den.

“You will not want to miss this opportunity to interact with one of the most famous scientists in Oak Ridge’s history,” organizers said. [Read more…]

Explore ORNL event postponed to Sept. 23-24

Posted at
By Leave a Comment

Oak Ridge National Laboratory’s Explore ORNL conference has been rescheduled until September 23-24 to coincide with a larger industrial outreach event at ORNL this fall. Explore ORNL was originally scheduled for July 14-15.

The September event will feature capabilities in building technologies, vehicle technologies, and advanced manufacturing, and will highlight new opportunities for small businesses to gain access to national laboratories, including ORNL.

Information about the September industry event will be released in the coming weeks.

Helium ‘balloons’ offer new path to control complex materials

Posted at
By Leave a Comment

Helium Atoms into Crystalline Film

Inserting helium atoms (visualized as a red balloon) into a crystalline film (gold) allowed Oak Ridge National Laboratory researchers to control the material’s elongation in a single direction. (Submitted image)

 

Researchers at Oak Ridge National Laboratory have developed a new method to manipulate a wide range of materials and their behavior using only a handful of helium ions.

The team’s technique, published in Physical Review Letters, advances the understanding and use of complex oxide materials that boast unusual properties such as superconductivity and colossal magnetoresistance but are notoriously difficult to control.

For the first time, ORNL researchers have discovered a simple way to control the elongation of a crystalline material along a single direction without changing the length along the other directions or damaging the crystalline structure. This is accomplished by adding a few helium ions into a complex oxide material and provides a never before possible level of control over magnetic and electronic properties.

“By putting a little helium into the material, we’re able to control strain along a single axis,” said ORNL’s Zac Ward, who led the team’s study. “This type of control wasn’t possible before, and it allows you to tune material properties with a finesse that we haven’t previously had access to.” [Read more…]

HED: Silica ‘spiky screws’ could enhance industrial coatings, additive manufacturing

Posted at
By Leave a Comment

It took marine sponges millions of years to perfect their spike-like structures, but research mimicking these formations may soon alter how industrial coatings and 3-D printed objects are produced.

A molecular process developed by researchers at Oak Ridge National Laboratory paves the way for improved silica structure design by introducing microscopic, segmented screw-like spikes that can more effectively bond materials for commercial use.

The study, conducted by Jaswinder Sharma and his colleagues Panos Datskos and David Cullen, has been published in Angewandte Chemie International Edition. Authors said other applications of the screw-like spikes could include coatings for eyeglasses, television screens, commercial transportation, and even self-cleaning windows and roofs in rural and urban environments.

Created by emulsion droplets applied to a silica particle’s surface, the new, segmented spikes offer an alternative tool for material scientists and engineers that can better maintain and fuse bonds within a variety of microstructures. [Read more…]

Letter: Expansion of DOE waste storage highlights environmental justice problem

Posted at
By 3 Comments

To the Editor:

For years, the Oak Ridge National Laboratory and Y-12 have steered their workers to live in surrounding counties. This has boosted those economies—while lowering our home values, financially burdening our schools, and limiting our retail growth.

Now, the U.S. Department of Energy wants to store more of its nuclear waste here.

In the last four years, our two counties (Anderson and Roane) lost 20 percent of their resident DOE workers, costing us an estimated $93 million in annual DOE payroll.

DOE’s economic favoritism is environmentally unfair and politically dumb. It works against the long-term interests of DOE’s important nuclear programs—which need a strong local political base of support to successfully operate. [Read more…]

ORNL: New tool on horizon for surgeons treating cancer patients

Posted at
By Leave a Comment

Droplet-based Surface Sampling Probe

Oak Ridge National Laboratory’s new droplet-based surface sampling probe speeds the process of analyzing a liver biopsy sample. (Photo courtesy ORNL)

 

Surgeons could know while their patients are still on the operating table if a tissue is cancerous, according to researchers from Oak Ridge National Laboratory and Brigham and Women’s Hospital/Harvard Medical School.

In the journal Analytical and Bioanalytical Chemistry, a team led by ORNL’s Vilmos Kertesz describes an automated droplet-based surface sampling probe that accomplishes in about 10 minutes what now routinely takes 20 to 30 minutes. Kertesz expects that time to be cut to four to five minutes soon. For this proof-of-concept demonstration, researchers rapidly profiled two hormones from human pituitary tissue.

“Instead of having to cut and mount tissue and wait for a trained pathologist to review the sample under a microscope, a technician might soon perform an equally conclusive test in the operating environment,” Kertesz said.

The new mass spectrometry-based technology provides an attractive alternative to the traditional method called immunohistochemistry, or IHC, which looks for specific protein biomarkers to make a diagnosis. Although the IHC approach provides a high degree of spatial recognition, it is time-consuming and limited by the quality and specificity of the antibody used to detect the protein. [Read more…]

Advanced composites expert named newest UT-ORNL Governor’s Chair

Posted at
By Leave a Comment

Uday Vaidya

Uday Vaidya

KNOXVILLE—The position of the University of Tennessee in Knoxville and Oak Ridge National Laboratory as leaders in the manufacturing revolution has taken another bold step forward with the hiring of Uday Vaidya as the Governor’s Chair in Advanced Composites Manufacturing.

Vaidya becomes the 14th UT-ORNL Governor’s Chair and the seventh devoted to some aspect of advanced manufacturing, underscoring the importance of this research and the role of the two institutes in it.

“We are pleased to welcome Uday and the leadership he brings in the growing area of advanced composites manufacturing,” said UT Chancellor Jimmy G. Cheek. “His research will contribute to the vital building blocks we have with ORNL and our momentum as leaders in the field.” [Read more…]