Oak Ridge Today

ORNL: Neutrons peer into a running engine

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Researchers used neutrons to probe a running engine at Oak Ridge National Laboratory’s Spallation Neutron Source, giving them the opportunity to test an aluminum-cerium alloy under operating conditions. From left, researchers Orlando Rios, Ke An, and Eric Stromme show off a cylinder head made from the new alloy. (Photo by ORNL/U.S. Department of Energy)

Researchers used neutrons to probe a running engine at Oak Ridge National Laboratory’s Spallation Neutron Source, giving them the opportunity to test an aluminum-cerium alloy under operating conditions. From left, researchers Orlando Rios, Ke An, and Lt. Eric Stromme show off a cylinder head made from the new alloy. (Photo by ORNL/U.S. Department of Energy)

 

By Ashley C. Huff, Oak Ridge National Laboratory

In a first-of-a-kind experiment, researchers used neutrons to investigate the performance of a new aluminum alloy in a gasoline-powered engine—while the engine was running.

A team from the U.S. Department of Energy’s Oak Ridge National Laboratory worked with industry partners to perform the test, which looked at whether a high-performance alloy that is promising for automotive applications held up under the heat and stress of an internal combustion engine.

Researchers used neutrons to probe a running engine at ORNL’s Spallation Neutron Source, giving them the opportunity to test an aluminum-cerium alloy under operating conditions.

The feat was a first for the Spallation Neutron Source, said Ke An, lead instrument scientist for the facility’s VULCAN instrument.

“This was the first time an internal combustion engine has been run on our diffractometer, and, as far as we know, on any other,” he said. [Read more…]

ORNL researchers turn to ‘deep learning’ to solve science’s big data problem

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Scientists will use Oak Ridge National Laboratory’s computing resources such as the Titan supercomputer to develop deep learning solutions for data analysis. (Photo credit: Jason Richards/Oak Ridge National Laboratory, U.S. Department of Energy)

Scientists will use Oak Ridge National Laboratory’s computing resources such as the Titan supercomputer to develop deep learning solutions for data analysis. (Photo credit: Jason Richards/Oak Ridge National Laboratory, U.S. Department of Energy)

 

By Scott Jones, Oak Ridge National Laboratory

A team of researchers from Oak Ridge National Laboratory has been awarded nearly $2 million over three years from the U.S. Department of Energy to explore the potential of machine learning in revolutionizing scientific data analysis.

The Advances in Machine Learning to Improve Scientific Discovery at Exascale and Beyond (ASCEND) project aims to use deep learning to assist researchers in making sense of massive datasets produced at the world’s most sophisticated scientific facilities. Deep learning is an area of machine learning that uses artificial neural networks to enable self-learning devices and platforms. The team, led by ORNL’s Thomas Potok, includes Robert Patton, Chris Symons, Steven Young, and Catherine Schuman.

While deep learning has long been used to classify relatively simple data such as photographs, today’s scientific data presents a much greater challenge because of its size and complexity. Deep learning offers the potential to truly change the way in which researchers use massive datasets to solve challenges spanning the scientific spectrum.

For example, neutron scattering data collected at ORNL’s Spallation Neutron Source contain rich scientific information about structure and dynamics of materials under investigation, and deep learning could help researchers better understand the link between experimental data and materials properties.

“This understanding can help scientists build and support new scientific theories, and help to design better materials,” Potok said. [Read more…]

ORNL’s Salil Mahajan: Gaining perspective on climate variability with high-resolution modeling

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Computational climate scientist Salil Mahajan simulates the complex and chaotic aspects of climate at Oak Ridge National Laboratory. (Photo by ORNL/U.S. Department of Energy)

Computational climate scientist Salil Mahajan simulates the complex and chaotic aspects of climate at Oak Ridge National Laboratory. (Photo by ORNL/U.S. Department of Energy)

 

By Ashley C. Huff, Oak Ridge National Laboratory

Simulating the global climate in high resolution at multiple scales will help answer questions about future global and regional climates. However, as performance expectations increase for Earth system models, so do computing challenges.

Salil Mahajan, a computational climate scientist in the Computational Earth Sciences group at the U.S. Department of Energy’s Oak Ridge National Laboratory, is tackling some of these challenges in high-performance computing for climate science.

Climate is a chaotic system. It includes complex interactions between the atmosphere, oceans, sea ice, and land.

“As we include more dynamic, coupled interactions among these spheres and incorporate more biological, chemical, and physical processes in our models, the computations become more complicated,” Mahajan said. “We have to take a step-by-step approach to understand cause and effect and ensure that our simulations are accurately representing our observational measurements.”

Model validation and verification are now the bread and butter of his daily routine. But Mahajan’s affinity for atmospheric science and computing architectures developed along a circuitous route.

From architecture to atmosphere [Read more…]

Anderson County Republican Party has candidates forum on Thursday

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Anderson County Republican Party Logo

The Anderson County Republican Party will have a Republican Candidates’ Forum in Oak Ridge on Thursday.

The forum is scheduled for 7 p.m. Thursday, September 7, at Anderson County General Sessions Court, Division II, at 101 Bus Terminal Road in Oak Ridge, a press release said.

“The Anderson County Republican Party has elected primaries to welcome growth and opportunity into the party,” the press release said. “Candidates running as a Republican must adhere to the standards and practices of the Republican Party. The Republican Party is an earned label, not a charitable distribution of the representation that it holds. In addition, the Tennessee Republican Party is not a public entity. It is to be revered and respected. The name, logo, reference and (R) belong to the party. Therefore, the state party is required to list the candidate as an approved ‘bona fide Republican.'” [Read more…]

Oak Ridge Community Band has Labor Day concert on Monday

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Dale Pendley directs the Oak Ridge Community Band on July 4, 2017. (Submitted photo)

Dale Pendley conducts the Oak Ridge Community Band on July 4, 2017. (Submitted photo)

 

The Oak Ridge Community Band has its last outdoor concert of the summer at 7 p.m. Monday, Labor Day, in Alvin K. Bissell Park. There is no admission fee, and everyone is encouraged to bring chairs or blankets for outdoor seating, a press release said. To make things even “sweeter,” Razzleberry’s Ice Cream Lab will be in the park to provide cool refreshments, the press release said.

Along with the concert programs handed out at the tables around the performing pavilion, audience members can also pick up brochures outlining the Community Band’s 2017-2018 indoor concert season with performances scheduled from October through April. And as an extra bonus, tickets for free admission to the October 8 concert will be also be available.

Among the highlights of the Community Band’s Labor Day program will be the clarinet section’s performance of Wim Laseroms’s fast-paced “Claribelle,” the tubas and flutes in Henry Mancini’s “Baby Elephant Walk,” and the trombone section in Henry Fillmore’s “Ham Trombone.” [Read more…]

Nuclear engineer receives two years in prison for violating Atomic Energy Act

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U.S. Department of Justice

U.S. Department of Justice

KNOXVILLE—On Thursday, Szuhsiung Ho, also known as Allen Ho, 66, a naturalized U.S. citizen, was sentenced by Chief U.S. District Judge Thomas A. Varlan to serve 24 months in prison and one year of supervised release. Upon his release, he will be supervised by U.S. Probation for one year. He was also ordered to pay a fine of $20,000.

Ho pleaded guilty in January 2017 to conspiracy to unlawfully engage or participate in the production or development of special nuclear material outside the United States, without the required authorization from the U.S. Department of Energy, in violation of the Atomic Energy Act, a press release said.

An April 2016 indictment charged Ho; China General Nuclear Power Company (CGNPC), the largest nuclear power company in China; and Energy Technology International (ETI), a Delaware corporation, with these offenses. At the time of his indictment, Ho was a nuclear engineer, employed as a consultant by CGNPC, and he was also the owner of ETI. CGNPC specialized in the development and manufacture of nuclear reactors and was controlled by China’s State-Owned Assets Supervision and Administration Commission, the press release said. [Read more…]

Robertsville Middle School vice principal appointment announced

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Tonya Childress

Tonya Childress

 

Tonya Childress was selected to serve as the Robertsville Middle School assistant principal beginning July 11, 2017.

Childress holds both doctor of education and educational specialist degrees from Lincoln Memorial University. She received both her master of science and bachelor of science degrees from the University of Tennessee in Knoxville in Technology Education.

During the past 18 years, Childress has served as a teacher and administrator with Knox County Schools.

This press release was submitted by Holly Cross.

Oak Ridge Symphony Orchestra celebrates 73rd season with free concert

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Part of the Oak Ridge Symphony Orchestra is pictured above. (Photo courtesy Oak Ridge Civic Music Association)

Part of the Oak Ridge Symphony Orchestra is pictured above. (Photo courtesy Oak Ridge Civic Music Association)

 

The Oak Ridge Civic Music Association will celebrate the beginning of its 73rd season with the Oak Ridge Symphony Orchestra’s Free Family Concert on Sunday, September 17, at 3 p.m. at the Oak Ridge High School Performing Arts Center.

This year’s concert, titled “String Fling,” will celebrate the string instruments of the orchestra, including a special opportunity for local string players to join the Oak Ridge Symphony Orchestra on stage for a play-along, a press release said.

“The Free Family Concert is perfect for families and music lovers of all ages and includes informative pieces and instrument demonstrations so that first-timers can learn about the symphony orchestra,” the release said.

“I am always excited to conducting the annual Free Family Concert with the Oak Ridge Symphony Orchestra,” Music Director Dan Allcott said. “We look forward to performing alongside string players of all ages and giving young people a chance to get their hands on a variety of string instruments at our instrument petting zoo!” [Read more…]

Y-12 FCU Gives Foundation presents two new grants

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Pictured above during a check presentation to Free Medical Clinic are Amber Price, Y-12 FCU Gives Foundation; Jackie Clay, executive director, Free Medical Clinic and board members Carol Smallridge and Judy Wilson; and Janie Click and Stephanie Zuleger, Y-12 FCU Gives Foundation. (Photo by Y-12 Federal Credit Union)

Pictured above from left to right during a check presentation to Free Medical Clinic are Amber Price, Y-12 FCU Gives Foundation; Jackie Clay, executive director, Free Medical Clinic and board members Carol Smallridge and Judy Wilson; and Janie Click and Stephanie Zuleger, Y-12 FCU Gives Foundation. (Photo by Y-12 Federal Credit Union)

 

Free Medical Clinic and Oak Ridge Computer Science (ORCS) Girls were the newest recipients of grants from Y-12 FCU Gives Foundation, a press release said. A check presentation ceremony was conducted at the Y-12 Federal Credit Union branch in Oak Ridge on Monday, August 7.

Y-12 FCU Gives Foundation was established by Y-12 Federal Credit Union, a full-service financial provider headquartered in Oak Ridge, with 14 branches located in Anderson, Blount, Campbell, Knox, Roane, and Sevier counties serving 108,413 members. The foundation was established to extend the Y-12 FCU mission of “people helping people” into the philanthropic realm of charitable giving and support.

Y-12 FCU Gives Foundation will improve communities by delivering human and financial resources, the press release said. The Foundation Board of Directors will use their compassion, accountability, and dedication to make a difference in the hearts and lives of the communities served in the areas of: [Read more…]

United Way funds discretionary grants

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United Way of Anderson County awarded nearly $50,000 in grants to local nonprofits as part of its first Discretionary Grant cycle last month, a press release said.

United Way of Anderson County awarded nearly $50,000 in grants to local nonprofits as part of its first Discretionary Grant cycle last month, a press release said.

 

United Way of Anderson County awarded nearly $50,000 in grants to local nonprofits as part of its first Discretionary Grant cycle last month, a press release said.

While UWAC’s standard grant cycle focuses on programs that will have a long-term impact on clients’ lives, the Discretionary Grant offers funding for one-time, project-based requests that will enable the organizations to improve or expand the reach of existing programs and provide better service to their clients, the press release said. [Read more…]

Osteoporosis the topic of Health Night at MMC this evening

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Daniel Benson

Daniel Benson

Osteoporosis is a disease that causes thinning of bones. Over time, this weakens the bones and can make them more fragile and more likely to break—even under minor stress or spontaneously. It can affect any bone, but the hip, spine, and wrist are most often involved.

People with osteoporosis may not get any symptoms. Some may have pain in their bones and muscles. Sometimes, a collapsed vertebra may cause severe pain, decrease in height, or spinal deformity such as a hunched back. Because many people do not experience symptoms, or may not associate their symptoms with osteoporosis, the condition can be left unchecked until advance symptoms, such a broken bone, occur. Osteoporosis is, in fact, the leading reason of broken bones among the elderly. That’s why understanding the risk factors and prevention tactics is so crucial. [Read more…]

Tennessee gubernatorial candidate to visit Oak Ridge today

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Craigh Fitzhugh

Craigh Fitzhugh

Craig Fitzhugh, a Democratic candidate for Tennessee governor, is visiting Oak Ridge this evening.

Fitzhugh will have a meet and greet from 7 to 8 p.m. today (Tuesday, August 29) at Razzleberry’s Ice Cream Lab and Café at 223 Jackson Square in Oak Ridge. The event is being sponsored by the Anderson County Democratic Party, a press release said. The public is invited.

“‘People Matter,’ the campaign slogan of Democratic gubernatorial candidate Craig Fitzhugh, ties together the very essence of why he has thrown his hat into the race for governor in 2018,” the press release said. “It connects voter concerns from across the state.”

When asked why he chose “People Matter” as his slogan, Fitzhugh said he’s concerned Tennessee is falling behind, citing education, jobs, infrastructure, and health care, particularly the expansion of Medicaid as top issues, the press release said.

“The problems and the situations that people in North Nashville and south Memphis find themselves in are not much different than those in Ripley, or Columbia or Etowah, or other communities,” Fitzhugh said. “There are things that we can do to give people an opportunity to better their lives.” [Read more…]