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About Rachel Harken

Rachel Harken is a science writer for the Oak Ridge Leadership Computing Facility.
Latest Posts | By Rachel Harken
Tiny Transistor Leads to Big Win for ETH Zurich, 2019 ACM Gordon Bell Prize Winner
3 weeks ago

Tiny Transistor Leads to Big Win for ETH Zurich, 2019 ACM Gordon Bell Prize Winner

By  •  3 weeks ago  •  Featured, Science

A team from ETH Zürich has been awarded the 2019 Association for Computing Machinery’s (ACM’s) Gordon Bell Prize for its work simulating quantum transport—or the transport of electric charge carriers …
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Modeling Every Building in America Starts with Chattanooga
4 weeks ago

Modeling Every Building in America Starts with Chattanooga

By  •  4 weeks ago  •  Featured, Science

Buildings use 40 percent of America’s primary energy and 75 percent of its electricity, which can jump to 80 percent when a majority of the population is at home using …
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Can a UNICORN Outrun Earthquakes?
4 weeks ago

Can a UNICORN Outrun Earthquakes?

By  •  4 weeks ago  •  Featured, Science

Each year, anywhere from a few hundred to tens of thousands of deaths are attributed to the catastrophic effects of major earthquakes. Apart from ground shaking, earthquake hazards include landslides, …
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AI for Plant Breeding in an Ever-Changing Climate
4 weeks ago

AI for Plant Breeding in an Ever-Changing Climate

By  •  4 weeks ago  •  Featured, Science

How might artificial intelligence (AI) impact agriculture, the food industry, and the field of bioengineering? Dan Jacobson, a research and development staff member in the Biosciences Division at the US …
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Gordon Bell Finalist Team Tackles Transistors with New Programming Paradigm
1 month ago

Gordon Bell Finalist Team Tackles Transistors with New Programming Paradigm

By  •  1 month ago  •  Featured, Science

Transistors, tiny semiconductor devices that switch electricity on or off, revolutionized the electronics field when they were discovered in 1947. Originally half-inch-high pieces of germanium, transistors today are mainly composed …
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Search for Lightweight Alloying Solutions Earns Team a Gordon Bell Finalist Nomination
1 month ago

Search for Lightweight Alloying Solutions Earns Team a Gordon Bell Finalist Nomination

By  •  1 month ago  •  Featured, Science

Alloys—mixtures of two or more metals—are designed to be stronger, more ductile (pliable), or more durable than pure elements. Steel is one of the most popular alloy materials, but its …
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Chromosome Connectors Take Center Stage for ORNL Scientists Studying Poplar
2 months ago

Chromosome Connectors Take Center Stage for ORNL Scientists Studying Poplar

By  •  2 months ago  •  Featured, Science

The black cottonwood tree, or Populus trichocarpa (poplar), serves as a model organism for scientists studying the structure, growth, development, and genetics of plants. Poplar was the first tree genome scientists …
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ORNL Staff Highlight OpenACC’s Role in HPC at Annual Meeting
3 months ago

ORNL Staff Highlight OpenACC’s Role in HPC at Annual Meeting

By  •  3 months ago  •  Events

OpenMP and OpenACC are widely used directive-based application program interfaces (APIs) that allow computer scientists and engineers to program applications on shared memory and accelerator architectures on high-performance computing (HPC) …
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GPUs Power GE Code at OLCF Hackathons
3 months ago

GPUs Power GE Code at OLCF Hackathons

By  •  3 months ago  •  Featured, Science

The ability to simulate turbulent phenomena using high-performance computing (HPC) can provide industry with important insights for efficient engine design. Second only to the ability to perform these critical simulations …
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ORNL-VA Collaboration Targets Veteran Suicide Epidemic
3 months ago

ORNL-VA Collaboration Targets Veteran Suicide Epidemic

By  •  3 months ago  •  Featured, Science

More than 6,000 veterans died by suicide in 2016, and from 2005 to 2016, the rate of veteran suicides in the United States increased by more than 25 percent.

Suicide …
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From Simulation to Automation in a Data-Rich World
3 months ago

From Simulation to Automation in a Data-Rich World

By  •  3 months ago  •  Featured, Science

In a farewell nod to Titan, scheduled to be decommissioned in August 2019, we present a short series of features highlighting some of Titan’s impactful contributions to scientific research.

Long …
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Second “Introduce Your Daughter to AI” Event Is a Hit
6 months ago

Second “Introduce Your Daughter to AI” Event Is a Hit

By  •  6 months ago  •  People

The Women in Computing (WiC) networking group at the US Department of Energy’s (DOE’s) Oak Ridge National Laboratory (ORNL) hosted its second “Introduce Your Daughter to AI” workshop on June …
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