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The Open-source Data Inventory for Anthropogenic CO <sub>2</sub> , version 2016 (ODIAC2016): a global monthly fossil fuel CO <sub>2</sub> gridded emissions data product for tracer transport simulations and surface flux inversions Open
The Open-source Data Inventory for Anthropogenic CO2 (ODIAC) is a global high-spatial-resolution gridded emissions data product that distributes carbon dioxide (CO2) emissions from fossil fuel combustion. The emissions spatial distribution…
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Integrating the evidence for a terrestrial carbon sink caused by increasing atmospheric CO <sub>2</sub> Open
Summary Atmospheric carbon dioxide concentration ([CO 2 ]) is increasing, which increases leaf‐scale photosynthesis and intrinsic water‐use efficiency. These direct responses have the potential to increase plant growth, vegetation biomass,…
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Challenges for and Pathways toward Li-Metal-Based All-Solid-State Batteries Open
Solid-state batteries utilizing Li metal anodes have the potential to enable improved performance (specific energy >500 Wh/kg, energy density >1500 Wh/L), safety, recyclability, and potentially lower cost (<$100/kWh) compared to advanced L…
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The suite of small-angle neutron scattering instruments at Oak Ridge National Laboratory Open
Oak Ridge National Laboratory is home to the High Flux Isotope Reactor (HFIR), a high-flux research reactor, and the Spallation Neutron Source (SNS), the world's most intense source of pulsed neutron beams. The unique co-localization of th…
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Understanding GPU errors on large-scale HPC systems and the implications for system design and operation Open
Increase in graphics hardware performance and improvements in programmability has enabled GPUs to evolve from a graphics-specific accelerator to a general-purpose computing device. Titan, the world's second fastest supercomputer for open s…
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A suite-level review of the neutron powder diffraction instruments at Oak Ridge National Laboratory Open
The suite of neutron powder diffractometers at Oak Ridge National Laboratory (ORNL) utilizes the distinct characteristics of the Spallation Neutron Source and High Flux Isotope Reactor to enable the measurements of powder samples over an u…
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The Uranium from Seawater Program at the Pacific Northwest National Laboratory: Overview of Marine Testing, Adsorbent Characterization, Adsorbent Durability, Adsorbent Toxicity, and Deployment Studies Open
The Pacific Northwest National Laboratory's (PNNL) Marine Science Laboratory (MSL) located along the coast of Washington State is evaluating the performance of uranium adsorption materials being developed for seawater extraction under real…
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Leveraging Secondary Storage to Simulate Deep 54-qubit Sycamore Circuits Open
In a recent paper, we showed that secondary storage can extend the range of quantum circuits that can be practically simulated with classical algorithms. Here we refine those techniques and apply them to the simulation of Sycamore circuits…
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Origin of High Li<sup>+</sup> Conduction in Doped Li<sub>7</sub>La<sub>3</sub>Zr<sub>2</sub>O<sub>12</sub> Garnets Open
Substitution of a native ion in the crystals with a foreign ion that differs in valence (aliovalent doping) has been widely attempted to upgrade solid-state ionic conductors for various charge carriers including O²⁻, H⁺, Li⁺, Na⁺, etc. The…
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Improved short-baseline neutrino oscillation search and energy spectrum measurement with the PROSPECT experiment at HFIR Open
We present a detailed report on sterile neutrino oscillation and U-235\nantineutrino energy spectrum measurement results from the PROSPECT experiment\nat the highly enriched High Flux Isotope Reactor (HFIR) at Oak Ridge National\nLaborator…
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CDIAC-FF: global and national CO <sub>2</sub> emissions from fossil fuel combustion and cement manufacture: 1751–2017 Open
Global- and national-scale inventories of carbon dioxide (CO2) emissions are important tools as countries grapple with the need to reduce emissions to minimize the magnitude of changes in the global climate system. The longest time series …
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Reliability lessons learned from GPU experience with the Titan supercomputer at Oak Ridge leadership computing facility Open
The high computational capability of graphics processing units (GPUs) is enabling and driving the scientific discovery process at large-scale. The world’s second fastest supercomputer for open science, Titan, has more than 18,000 GPUs that…
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ADVANTG—An Automated Variance Reduction Parameter Generator (Rev. 1) Open
The primary objective of ADVANTG is to reduce both the user effort and the computational time required to obtain accurate and precise tally estimates across a broad range of challenging transport applications. ADVANTG has been applied to s…
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The Macromolecular Neutron Diffractometer MaNDi at the Spallation Neutron Source Open
The Macromolecular Neutron Diffractometer (MaNDi) is located on beamline 11B of the Spallation Neutron Source at Oak Ridge National Laboratory. The instrument is a neutron time-of-flight wavelength-resolved Laue diffractometer optimized to…
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Frontier: Exploring Exascale Open
As the US Department of Energy (DOE) computing facilities began deploying petascale systems in 2008, DOE was already setting its sights on exascale. In that year, DARPA published a report on the feasibility of reaching exascale. The report…
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Characterization and Testing of Amidoxime-Based Adsorbent Materials to Extract Uranium from Natural Seawater Open
Extraction of uranium (U) from seawater for use as a nuclear fuel is a significant challenge due to the low concentration of U in seawater (~3.3 ppb) and difficulties to selectively extract U from the background of major and trace elements…
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AI for Science: Report on the Department of Energy (DOE) Town Halls on
Artificial Intelligence (AI) for Science Open
The report documents the DOE Town Halls held during 2019 at Argonne National Laboratory, Oak Ridge National Laboratory, Lawrence Berkeley National Laboratory, and in Washington, DC. From July to October 2019, the Argonne, Oak Ridge, and Be…
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Global Carbon Fiber Composites Supply Chain Competitiveness Analysis Open
This study identifies key opportunities in the carbon fiber supply chain where the United States Department of Energy's Office of Energy Efficiency and Renewable Energy resources and investments can help the United States achieve or mainta…
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Locally adaptive, spatially explicit projection of US population for 2030 and 2050 Open
Significance Oak Ridge National Laboratory (ORNL) is a leader in population distribution and dynamics research, particularly in developing gridded population datasets. For this study, ORNL researchers leverage their expertise in intelligen…
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The CG-1D Neutron Imaging Beamline at the Oak Ridge National Laboratory High Flux Isotope Reactor Open
The Oak Ridge National Laboratory Neutron Sciences Directorate has installed a neutron imaging beamline at the High Flux Isotope Reactor (HFIR) cold guide hall. CG-1D is one of the three instruments that make up the CG1 instrument suite. T…
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AGR-1 Post Irradiation Examination Final Report Open
The post-irradiation examination (PIE) of the Advanced Gas Reactor (AGR)-1 experiment was a multi-year, collaborative effort between Idaho National Laboratory (INL) and Oak Ridge National Laboratory (ORNL) to study the performance of UCO (…
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SCALE Code System Open
The SCALE Code System is a widely used modeling and simulation suite for nuclear safety analysis and design that is developed, maintained, tested, and managed by the Reactor and Nuclear Systems Division (RNSD) of Oak Ridge National Laborat…
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Using Big Area Additive Manufacturing to directly manufacture a boat hull mould Open
Big Area Additive Manufacturing (BAAM) is a large-scale, 3D printing technology developed by Oak Ridge National Laboratory's Manufacturing Demonstration Facility and Cincinnati, Inc. The ability to quickly and cost-effectively manufacture …
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A suite-level review of the neutron single-crystal diffraction instruments at Oak Ridge National Laboratory Open
The nascent suite of single-crystal neutron diffractometers at the Oak Ridge National Laboratory has no equal at any other neutron scattering facility worldwide and offers the potential to re-assert single-crystal diffraction using neutron…
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SCALE Code System Open
The SCALE Code System is a widely-used modeling and simulation suite for nuclear safety analysis and design that is developed, maintained, tested, and managed by the Reactor and Nuclear Systems Division (RNSD) of Oak Ridge National Laborat…
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Additive Manufacturing Integrated Energy—Enabling Innovative Solutions for Buildings of the Future Open
The additive manufacturing integrated energy (AMIE) demonstration utilized three-dimensional (3D) printing as an enabling technology in the pursuit of construction methods that use less material, create less waste, and require less energy …
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The Particle Accelerator Simulation Code PyORBIT Open
The particle accelerator simulation code PyORBIT is presented. The structure, implementation, history, parallel and simulation capabilities, and future development of the code are discussed. The PyORBIT code is a new implementation and ext…
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SCALE Code System Open
The SCALE Code System is a widely-used modeling and simulation suite for nuclear safety analysis and design that is developed, maintained, tested, and managed by the Reactor and Nuclear Systems Division (RNSD) of Oak Ridge National Laborat…
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Correlation of Structure and Fast Ion Conductivity in the Solid Solution Series Li<sub>1+2<i>x</i></sub>Zn<sub>1–<i>x</i></sub>PS<sub>4</sub> Open
Solid electrolytes are the foundation of all-solid-state batteries (ASSB) and have the potential to provide improved safety and higher energy density than existing liquid battery systems. In the important search for new lithium ion conduct…
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Status of Metallic Structural Materials for Molten Salt Reactors Open
In the US and around the world, significant interest surrounds development and deployment of nuclear systems using molten salts to transfer heat. Several configurations are being explored, including the use of fluoride salts either as the …