A5102764003- Fire dynamics and safety research
- Combustion and Detonation Processes
- Wind and Air Flow Studies
- Fluid Dynamics and Heat Transfer
- Fire effects on ecosystems
- Combustion and flame dynamics
- Risk and Safety Analysis
- Thermochemical Biomass Conversion Processes
- Radiative Heat Transfer Studies
- Plant Surface Properties and Treatments
- Flame retardant materials and properties
- Graphite, nuclear technology, radiation studies
- Fluid Dynamics Simulations and Interactions
- Fire Detection and Safety Systems
- Advancements in Semiconductor Devices and Circuit Design
- Atomic and Subatomic Physics Research
- Semiconductor materials and devices
- Atmospheric chemistry and aerosols
- Meteorological Phenomena and Simulations
- Evacuation and Crowd Dynamics
- Distributed and Parallel Computing Systems
- Cold Atom Physics and Bose-Einstein Condensates
- Interconnection Networks and Systems
- Electrohydrodynamics and Fluid Dynamics
- Energetic Materials and Combustion
Sandia National Laboratories
2014-2024
Atom Computing (United States)
2023-2024
Parker Hannifin (United States)
2024
Sandia National Laboratories California
2009-2022
Virginia Commonwealth University
2021
Los Alamos National Laboratory
2019-2020
Gold Standard Simulations (United Kingdom)
2014
HR Wallingford
2014
Internet2
2014
National Renewable Energy Laboratory
2001-2013
Assembling and maintaining large arrays of individually addressable atoms is a key requirement for continued scaling neutral-atom-based quantum computers simulators. In this work, we demonstrate new paradigm assembly atomic arrays, based on synergistic combination optical tweezers cavity-enhanced lattices, the incremental filling target array from repetitively filled reservoir. protocol, provide microscopic rearrangement atoms, while lattices enable creation numbers traps with sufficient...
Measurement-based quantum error correction relies on the ability to determine state of a subset qubits (ancillas) within processor without revealing or disturbing remaining qubits. Among neutral-atom-based platforms, scalable, high-fidelity approach midcircuit measurement that retains ancilla in suitable for future operations has not yet been demonstrated. In this work, we perform maging using narrow-linewidth transition an array tweezer-confined Yb171 atoms demonstrate nondestructive...
We describe a methodology for identifying and characterizing dynamic dependencies between system components in distributed application environments such as e-commerce systems. The relies on active perturbation of the to identify use statistical modeling compute dependency strengths. Unlike more traditional passive techniques, our approach requires little initial knowledge implementation details has potential provide greater coverage direct evidence causality it identifies. experimentally...
The physical and radiative properties of a composite ship track are described from the analysis 131 ship–ship correlation pairs collected during Monterey Area Ship Track experiment. significant variability tracks around their average characteristics is also described. nominal environmental conditions for set 296 ± 233 km long, 7.3 6 h old, averages 9 5 wide. is, on average, 16 8 head along relative wind vector corresponds to time 25 15 min. examined in this study formed marine boundary...
During stable nighttime periods, large variations in temperature and visibility often occur over short distances regions of only moderate topography. These are great practical significance yet pose major forecasting challenges because a lack detailed understanding the processes involved crucial topographic not resolved current forecast models. This paper describes field numerical modeling campaign, Cold-Air Pooling Experiment (COLPEX), which addresses many issues. The observational campaign...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEffect of Spherulites on Physical Properties FluorotheneF. P. Reding and Alexander BrownCite this: Ind. Eng. Chem. 1954, 46, 9, 1962–1967Publication Date (Print):September 1, 1954Publication History Published online1 May 2002Published inissue 1 September 1954https://pubs.acs.org/doi/10.1021/ie50537a054https://doi.org/10.1021/ie50537a054research-articleACS PublicationsRequest reuse permissionsArticle Views62Altmetric-Citations33LEARN ABOUT THESE...
A semiempirical model has been developed for predicting coal-derived soot. The main feature of the is a transport equation soot mass fraction. Tar prediction options include either an empirical or approach, which directly impacts source term formation. Also, number particles per unit gas may be calculated using assumed average. Kinetics are based on Arrhenius rates taken from published measurements. Radiative properties as function averaged optical constants, predicted temperatures,...
A laminar entrained flow reactor has been designed for studying the chemistry of fast biomass pyrolysis. This is first two papers on reaction system. Peak heating rates in are order 104 K/s. The capable interfacing with a molecular beam mass spectrometer rapid analysis gas phase chemistry. Computational fluid dynamic simulations used to predict an accurate time−temperature profile reactants and better understand internal processes reactor. Predicted measured compare favorably standard....
Cellulose pyrolysis has been studied in a laminar entrained flow reactor (LEFR). As described the previous companion paper, is capable of high heating rates (∼104 K/s) and characterized detail to ensure that lignocellulosic materials occurs under kinetic control at conditions reactor. The extent cellulose LEFR was monitored by sampling gas phase products with molecular beam mass spectrometer system, independently weighing residues on filter paper. Varying furnace temperature controls...
Measurement-based quantum error correction relies on the ability to determine state of a subset qubits (ancillae) within processor without revealing or disturbing remaining qubits. Among neutral-atom based platforms, scalable, high-fidelity approach mid-circuit measurement that retains ancilla in suitable for future operations has not yet been demonstrated. In this work, we perform imaging using narrow-linewidth transition an array tweezer-confined $^{171}$Yb atoms demonstrate nondestructive...
The goal of intelligent RAM (IRAM) is to design a cost-effective computer by designing processor in memory fabrication process, instead conventional logic and include on-chip. To DRAM process one must learn about the business culture DRAMs, which quite different from microprocessors. authors describe some those differences their current vision IRAM applications, architectures, implementations.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTProcedures in High Precision EbulliometryF. N. Hill and Alexander. BrownCite this: Anal. Chem. 1950, 22, 4, 562–564Publication Date (Print):April 1, 1950Publication History Published online1 May 2002Published inissue 1 April 1950https://pubs.acs.org/doi/10.1021/ac60040a015https://doi.org/10.1021/ac60040a015research-articleACS PublicationsRequest reuse permissionsArticle Views78Altmetric-Citations13LEARN ABOUT THESE METRICSArticle Views are the...
Today's fast-growing data-intensive network services place heavy demands on the back-end servers that support them. This paper introduces ISTORE, a novel server architecture couples LEGO-like plug-and-play hardware with generic framework for constructing adaptive software leverages continuous self-monitoring. ISTORE exploits introspection to provide high availability, performance, and scalability while drastically reducing cost complexity of administration. An ISTORE-based monitors adapts...
We introduce the ROC-1 hardware platform, a large-scale cluster system designed to provide high availability for Internet service applications. The prototype embodies our philosophy of recovery-oriented computing (ROC) by emphasizing detection and recovery from failures that inevitably occur in environments, rather than simple avoidance such failures. promises greater existing server systems incorporating four techniques applied ground up both software: redundancy isolation, online...
A technique is described for the measurement of crimp content fibers that particularly applicable to high content. The adaptable permanence stretch crimp, and this correlated with stretches induced in fiber processing.
Scenic rivers programs are a potential tool to conserve freshwater habitat but few studies have attempted characterize fish within scenic rivers. Using the Virginia Rivers Program as case study, we built species distribution models for representative set of fishes and tested whether model-predicted suitability values consistently higher than range-wide average values. We began by selecting 33 that were broadly complete functional trait space comprised Virginia's ichthyofauna. This subset...