Press Releases

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The complicated evolution of an air film during drop impact. (a) Schematic description of air film evolution; namely, when an air film is entrapped during drop impact on a solid surface, it should evolve into a bubble to minimize its surface energy. (b) Schematic of ultrafast x-ray phase-contrast imaging, which enables the tracking of dynamic changes of air- liquid interfaces in real time. To view a larger version of the image, click on it.
Bubble study could improve industrial splash control

For the first time, scientists witnessed the details of the full, ultrafast process of liquid droplets evolving into a bubble when they strike a surface. Their research determined that surface wetness affects the bubble's fate.

December 10, 2012
Chemist Lin Chen is being honored for her “contributions to understanding structural dynamics of molecular excited states with special emphasis on problems related to renewable energy,” according to the AAAS.
Two Argonne scientists named 2012 AAAS fellows

Computational scientist Paul Fischer and chemist Lin Chen of Argonne have been named fellows of the American Association for the Advancement of Science.

December 5, 2012
A team led by Argonne National Laboratory used the recently developed Hardware/Hybrid Accelerated Cosmology Codes (HACC) framework to achieve nearly 14 petaflops on the 20-petaflop Sequoia, an IBM BlueGene/Q supercomputer, in a record-setting benchmark run with 3.6 trillion simulation particles.
DOE researchers advance scientific computing with record-setting simulations

Breaking new ground for scientific computing, two teams of Department of Energy scientists have exceeded a sustained performance level of 10 petaflops on the Sequoia supercomputer at the National Nuclear Security Administration’s Lawrence Livermore National Laboratory.

November 28, 2012
Understanding the complex turbulent mixing noise sources for jet exhaust nozzles is critical to delivering the next generation of “green” low-noise jet engines. A scalable, compressible Computational Aeroacoustics solver based on Large Eddy Simulation is used to study free-shear layer noise from jet exhaust nozzles.

(Image by Anurag Gupta, Umesh Paliath, Hao Shen and Joseph A. Insley)
INCITE awards accelerate supercomputing research

The U.S. Department of Energy’s Leadership Computing Facilities have awarded a combined 4.7 billion supercomputing core hours to 61 science and engineering projects with high potential for accelerating discovery and innovation through its Innovative and Novel Computational Impact on Theory and Experiment program.

October 29, 2012
Schematic drawing of the double-stage diamond anvil cell assembly. The typical diameter of nano crystalline diamond semi-balls seen in the center of the drawing is 12-20 micrometers. The starting size of the sample is about three to four micrometers in diameter and about three micrometers thick.

Image by GSECARS/Argonne National Laboratory.
High-pressure science gets super-sized

The study of materials at extreme conditions took a giant leap forward with the discovery of a way to generate super high pressures without using shock waves whose accompanying heat turns solids to liquid.

October 23, 2012
Accelerator scientist John Noonan led the development of a superconducting cage-like radio-frequency cavity and a dual electron linear accelerator in an energy-recovery configuration that has the potential to revitalize domestic production of technetium-99m, potentially create thousands of new jobs and save more lives by having this isotope readily available.
Scientists develop affordable way to generate medical isotopes

Scientists at Argonne National Laboratory have developed a safe and affordable way to ensure a reliable U.S. supply of certain medical isotopes. Although the invention is at a conceptual stage, it has the potential to provide critical medical diagnostic material for small regional hospitals.

October 15, 2012
This is an image of a G-protein-coupled receptor signaling complex whose structure was identified in 2011.  The receptor is in magenta while the different G protein subunits are colored green, red and blue.  Stanford biochemist Brian Kobilka shared the 2012 Nobel Prize in Chemistry for his work in determining the structure of this activated GPCR using X-rays provided by Argonne’s Advanced Photon Source.
Advanced Photon Source lights the way to 2012 Chemistry Nobel

Thanks in part to research performed at Argonne National Laboratory, the 2012 Nobel Prize in Chemistry was awarded today to Americans Brian Kobilka and Robert Lefkowitz for their work on G protein-coupled receptors.

October 10, 2012
One of the Department of Energy's mobile climate testing facilities has launched aboard the cargo container ship Horizon Spirit as it traverses the Pacific Ocean. During a test run in February 2012, scientists launched a type of sensor called a radiosonde from different locations on the ship to determine the best location to accomplish the launch. Photo courtesy ARM Climate Research Facility.
Yearlong climate study launches

A container ship outfitted with meteorological and atmospheric instruments installed by scientists from Argonne and Brookhaven national laboratories will begin taking data today for a yearlong mission aimed at improving the representation of clouds in climate models.

October 1, 2012
Zoomed-in image from the Dark Energy Camera of the center of the globular star cluster 47 Tucanae, which lies about 17,000 light years from Earth. Credit: Dark Energy Survey Collaboration.
Dark energy camera to probe universe’s biggest mysteries

Eight billion years ago, rays of light from distant galaxies began their long journey to Earth. On Sept. 12, that ancient starlight found its way to a mountaintop in Chile, where the newly-constructed Dark Energy Camera, the most powerful sky-mapping machine ever created, captured and recorded it for the first time.

September 17, 2012
The reduction of iron(III) oxide minerals is an important component of iron cycling in the subsurface. For example, certain bacteria couple carbon oxidation and iron reduction to obtain energy from growth. Although iron oxides are poor conductors of electricity, electrons that are transfered to an iron oxide mineral are quite mobile, using thermal energy to hop from one iron atom to another. New research used time-resolved X-ray absorption spectroscopy to quantify the hopping rates for different iron(III) mineral phases and to confirm a theoretical picture of how the electron at one site alters the positions of the atoms around it.  This work contributes to our understanding of how soil mineralogy evolves when geochemical or biochemical processes create reducing conditions. (Image courtesy Benjamin Gilbert, Lawrence Berkeley National Laboratory).
A clearer look at how iron reacts in the environment

Using ultrafast X-rays, scientists for the first time have watched how quickly electrons hop their way through rust nanoparticles.

September 6, 2012