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New initiative to improve lithium-ion batteries

February 12, 2013 10:23 am | News | Comments

A Lawrence Livermore National Laboratory team is working to improve lithium-ion battery performance, lifetime, and safety. Working with Lawrence Berkeley National Laboratory, the scientists are developing a new methodology for performing first-principles quantum molecular dynamics simulations at an unprecedented scale to understand key aspects of the chemistry and dynamics in lithium-ion batteries, particularly at interfaces.

Researchers develop first kinetic model of plasma focus device

January 30, 2013 10:05 am | News | Comments

Lawrence Livermore National Laboratory researchers have developed a new simulation capability to model a classic plasma configuration. The researchers demonstrated, for the first time, a fully kinetic model of the dense plasma focus (DPF) Z-pinch device, including the electrodes, in a realistic geometry.

New look at cell membrane reveals surprising organization

January 28, 2013 3:22 pm | News | Comments

Sight would dramatically alter a blind man's understanding of an elephant, according to the old story. Now, a look directly at a cell surface is changing our understanding of cell membrane organization. Using a completely new approach to imaging cell membranes, a study by researchers from the University of Illinois, Lawrence Livermore National Laboratory, and the National Institutes of Health revealed some surprising relationships among molecules within cell membranes.

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Researchers break million-core supercomputer barrier

January 28, 2013 10:18 am | by Andrew Myers, Stanford University | News | Comments

Stanford Engineering's Center for Turbulence Research has set a new record in computational science by successfully using a supercomputer with more than one million computing cores to solve a complex fluid dynamics problem—the prediction of noise generated by a supersonic jet engine.

Meteorite made up of rare early solar system material

January 16, 2013 9:22 am | News | Comments

It looked like a fireball in the sky. It created a sonic boom. It vaporized upon entering the atmosphere. It's all of the above: The Sutter's Mill Meteorite had the force of 4 kilotons of TNT upon descent and spilled samples of itself over the towns of Columa and Lotus in northern California when it hit Earth last spring. And now a consortium of scientists has determined that the Sutter's Mill Meteorite is the most pristine sample yet collected of the rare Carbonaceous-Mighei chondrite class of meteorites.

DOE launches rare earth metals research hub

January 11, 2013 10:37 am | News | Comments

The U.S. Department of Energy (DOE) has launched a research hub that focuses on solutions to the domestic shortages of rare earth metals and other materials critical for U.S. energy security.

Oxygen to the core

January 10, 2013 2:15 pm | News | Comments

An international collaboration has discovered that the Earth's core formed under more oxidizing condition's than previously proposed. Through a series of laser-heated diamond anvil cell experiments at high pressure (350,000 to 700,000 atmospheres of pressure) and temperatures (5,120 to 7,460 F), the team demonstrated that the depletion of siderophile elements can be produced by core formation under more oxidizing conditions than earlier predictions.

CAMS used to determine biological fate of silica nanoparticles

January 4, 2013 9:48 am | News | Comments

In a study published in Nano Letters, Lawrence Livermore National Laboratory (LLNL)'s Mike Malfatti, Heather Palko, Ed Kuhn, and Ken Turteltaub report on accelerator mass spectrometry measurements used to investigate the relationship between administered dose, pharmacokinetics (PK), and long-term biodistribution of carbon 14-labeled silica nanopartocles in vivo.

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Lab research team solves condensed matter physics puzzle

December 28, 2012 7:32 am | News | Comments

A team of researchers, led by Lawrence Livermore National Laboratory, has answered a longstanding, much debated question in condensed matter physics. The question had to do with the rare earth element cerium (Ce), which undergoes a surprising, large isostructural volume collapse at high pressure.

LLNL receives grant for underground coal gasification work

December 4, 2012 8:35 am | News | Comments

Lawrence Livermore National Laboratory's Underground Coal Gasification Program has received a two-year research grant to study water-quality hazard mitigation strategies from the Office of Surface Mining Reclamation and Enforcement.

A human-caused climate change signal emerges from the noise

November 30, 2012 7:40 am | News | Comments

By comparing simulations from 20 different computer models to satellite observations, Lawrence Livermore National Laboratory climate scientists and colleagues from 16 other organizations have found that tropospheric and stratospheric temperature changes are clearly related to human activities.

Bug repellent for supercomputers proves effective

November 14, 2012 9:07 am | News | Comments

Lawrence Livermore National Laboratory (LLNL) researchers have used the Stack Trace Analysis Tool (STAT), a highly scalable, lightweight tool to debug a program running more than one million MPI processes on the IBM Blue Gene/Q-based Sequoia supercomputer. The debugging tool is a significant milestone in LLNL's multi-year collaboration with the University of Wisconsin-Madison and the University of New Mexico to ensure supercomputers run more efficiently.

Preparing Sequoia for national security missions

November 12, 2012 8:25 am | News | Comments

Sequoia, a world-class IBM BlueGene/Q computer sited at Lawrence Livermore National Laboratory for the National Nuclear Security Administration (NNSA), is exploring a broad range of science to shakeout the machine and fully develop the capabilities the system will require to fulfill its national security missions, starting early next year.

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Americans use more efficient and renewable energy technologies

October 24, 2012 9:27 am | News | Comments

Americans used less energy in 2011 than in the previous year due mainly to a shift to higher-efficiency energy technologies in the transportation and residential sectors. Meanwhile, less coal was used but more natural gas was consumed according to the most recent energy flow charts released by Lawrence Livermore National Laboratory.

Milky Way's black hole getting ready for snack

October 22, 2012 10:50 am | News | Comments

Get ready for a fascinating eating experience in the center of our galaxy. The event involves a black hole that may devour much of an approaching cloud of dust and gas known as G2. A supercomputer simulation prepared by two Lawrence Livermore National Laboratory physicists suggests that some of G2 will survive, although its surviving mass will be torn apart, leaving it with a different shape and questionable fate.

New military apparel repels chemical, biological agents

October 17, 2012 8:17 am | News | Comments

Lawrence Livermore National Laboratory scientists and collaborators are developing a new military uniform material that repels chemical and biological agents using a novel carbon nanotube fabric. The material will be designed to undergo a rapid transition from a breathable state to a protective state.

Cold cases heat up through Livermore approach to identifying remains

October 10, 2012 8:57 am | News | Comments

In an effort to identify the thousands of John/Jane Doe cold cases in the United States, a Lawrence Livermore National Laboratory researcher and a team of international collaborators have found a multidisciplinary approach to identifying the remains of missing persons. Using "bomb pulse" radiocarbon analysis developed at Livermore Lab, combined with recently developed anthropological analysis and forensic DNA techniques, the researchers were able to identify the remains of a missing child 41 years after the discovery of the body.

Changing the dynamics of bulk materials

October 9, 2012 8:16 am | News | Comments

Lawrence Livermore National Laboratory researchers have developed a new bulk material whose physical properties can be dynamically changed by an external signal. The scientists came up with a method to fabricate mass-producible, graphene-based bulk materials from low-cost, polymer-derived carbon foams by selectively removing carbon atoms form a network composed of both unstructured carbon and graphite nanoplatelets.

Paper explores new regimes in fast ignition

October 5, 2012 2:36 pm | News | Comments

Nearly 20 year ago, a group of researchers at Lawrence Livermore National Laboratory proposed a hole boring process that would serve as the original scheme for fast ignition. Today, researchers are pushing this research ahead into new regimes.

100th shot for LLNL's 'gun in the desert'

September 27, 2012 3:50 am | News | Comments

Lawrence Livermore National Laboratory's JASPER gas gun has fired its 100th shot. JASPER (the Joint Actinide Shock Physics Experimental Research) is a key scientific tool for the National Nuclear Security Administrations Stockpile Stewardship Program and its experiments have enabled scientists to understand important properties and behaviors of plutonium and other special nuclear materials without conducting underground nuclear tests.

The boy who played with fusion

September 13, 2012 7:40 am | by Delaynie A Koenig | News | Comments

After four years of work in his parent’s garage, 14-year-old Taylor Wilson built his first successful fusion reactor. Now 18 and old enough to be actually be a student at the university where he shares a laboratory, Wilson is chasing research projects of many kinds and is still fascinated by the science of the atom.

Powerful new formulation could replace today’s best military explosive

September 6, 2012 4:41 am | News | Comments

Borrowing a technology used to improve the effectiveness of drugs, scientists at the University of Michigan and Lawrence Livermore National Laboratory are reporting discovery of a new explosive more powerful than the current state-of-the-art explosive used by the military, and just as safe for personnel to handle.

Forcing the molecular bond issue

September 6, 2012 3:49 am | News | Comments

Researchers at Lawrence Berkeley National Laboratory's Molecular Foundry developed a first-of-its-kind model for providing a comprehensive description of the way in which molecular bonds form and rupture. This model enables researchers to predict the "binding free energy" of a given molecular system, a key to predicting how that molecule will interact with other molecules.

New insight into independent control of ionic, electronic conductivity of materials

August 14, 2012 4:19 am | News | Comments

Lawrence Livermore National Laboratory researchers have discovered a new method to independently control ionic and electronic conductivities in certain solids. The method, which uses tailored acceptor-donor co-doping to bind charged native vacancies and selectively modulate ionic but not electronic conductivity, was developed by using first-principles materials simulations.

Research provides new insights into actinide electronic structure

August 10, 2012 5:20 am | News | Comments

A team of researchers studying the fundamental properties of the actinide elements has significantly advanced the understanding of the electronic structure of elements that have electrons occupying f-orbitals.

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