Silky chocolate, a better medical drug, or solar panels all require the same thing: just the right crystals making up the material. Now, scientists trying to understand the paths crystals take as they form have been able to influence that path by modifying the starting ingredient. The insights gained from the results could eventually help scientists better control the design of a variety of products for energy or medical technologies.
PNNL researchers and collaborators found that mountainous, mixed water-ice clouds have a dual response when injected with numerous tiny pollution particles. Pollution particles flowing near California's Sierra Nevada Mountains ripen conditions that form droplets and ice particles. Initially, mountain-side precipitation decreases. But when the particles reach a certain amount, snowfall dramatically increases over the mountain.
The development of lungs and the process that enables respiration is still not well understood at the molecular level. To fill the knowledge gaps, PNNL scientists are systematically characterizing normal lung development in mice and humans.
ExaGraph: Combinatorial Methods for Enabling Exascale Applications was selected as the fifth Exascale Computing Project Co-Design Center. The PNNL-led center will focus on graph analytics, primarily combinatorial (graph) kernels that can access computing system resources to enhance data analytic computing applications. Mahantesh Halappanavar, of ACMD Division’s Data Sciences group, will lead the new ECP center.
Our researchers advance the frontiers of science to study, predict, and engineer complex adaptive systems related to Earth, energy, and security. Our investigations inhabit every scale. We study the vast whirl of aerosol-laden clouds; the complex shoreline interfaces of land and sea; the mysterious microbiomes that teem just beneath the Earth’s surface; and the myriad of molecules busy on surfaces just angstroms wide.
We investigate elemental chemical and physical processes, including new catalysts that speed up the efficiency of renewable fuels. We study climate system dynamics to predict the effects of climate change. We design and synthesize the functional and structural materials of the future, including robust metal foils thinner than a human hair.
We are proud to host two unique DOE user facilities. EMSL facilitates molecular-level investigations into the physical, chemical, and biological processes that underlie the Earth’s most critical environmental issues. ARM provides a setting for climate research and instrumentation development, and is strengthened by streaming data from a worldwide complex of sensing stations.