The Open Science Grid - Support for Multi-Disciplinary Team Science - the Adolescent Years
Abstract Not Provided
Bauerdick, Lothar↗
SEARCH · Engineering Papers
Results for “TEAM”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Building a Diverse and Inclusive HPC Community for Mission-Driven Team Science
The U.S. Department of Energy (DOE) has been a long-standing leader in driving advances in science and technology through advanced computing. However, DOE laboratories are currently facing urgent workforce challenges, particularly in terms of underrepresentation from key communities, including people of color, women, persons with disabilities, and first-generation scholars. This paper introduces the work carried out as part of the Exascale Computing Project (ECP) Broadening Participation Initiative, which aims to address workforce challenges through a lens that considers the distinct needs and culture of high-performance computing (HPC). The work focuses on three main efforts: hosting Intro to HPC Bootcamps, expanding the Sustainable Research Pathways (SRP) internship and workforce development program, and establishing an HPC Workforce Development and Retention Action Group. Finally, the paper also highlights various workforce efforts throughout the computational science community and explores opportunities for future work aimed at broadening participation in HPC.
97 MATHEMATICS AND COMPUTING↗
Cooperative Routing for an Air–Ground Vehicle Team—Exact Algorithm, Transformation Method, and Heuristics
This paper considers a cooperative vehicle routing problem for an intelligence, surveillance, and reconnaissance mission in the presence of communication constraints between the vehicles. The proposed framework uses a ground vehicle and an unmanned aerial vehicle (UAV) that travel cooperatively and visit a set of targets while satisfying the communication constraints. The problem is formulated as a mixed-integer linear program, and a branch-and-cut algorithm is developed to solve the problem to optimality. Furthermore, a transformation method and a heuristic are also developed for the problem. The effectiveness of all the algorithms is corroborated through extensive computational experiments on several randomly generated instances. Furthermore, this paper is motivated by an intelligence, surveillance, and reconnaissance mission involving a single unmanned aerial vehicle (UAV) and a ground vehicle, where the vehicles must coordinate their activity in the presence of communication constraints. The combination of a small UAV and a ground vehicle is an ideal platform for such missions, since small UAVs can fly at low altitudes and can avoid obstacles or threats that would be problematic for the ground vehicle alone. This paper addresses the coordinated routing problem involving these two vehicles and presents an algorithm to obtain an optimal solution for this problem, fast heuristics to obtain good feasible solutions, and also a transformation method to transform any instance of this cooperative vehicle routing problem to an instance of the one-in-a-set traveling salesman problem.
33 ADVANCED PROPULSION SYSTEMS↗
AEGIS autonomous targeting for ChemCam on Mars Science Laboratory: Deployment and results of initial science team use
Autonomous target selection and pointing refinement steer a remote geochemical LIBS instrument on Mars, increasing data return.
58 GEOSCIENCES↗
TEAM-TDM: A Tool for Evaluating an Array of Machine Learning Travel Demand Models [SWR-18-64]
This is a package for easy application of multiple machine learning models to a single problem, and comparison via various metrics. For a pretty detailed description of the models that are available in the tool, and a quite detailed description of the metrics that it pumps out, see the paper, "A Machine Learning Decision Support Tool for Travel Demand Modeling". Accessible at: https://github.com/NREL/TEAM-TDM/blob/master/paper/team_tdm.pdf
Brown, Christopher↗
SaS4D Home Team Ul
This software allows for a lidar-generated point cloud to be converted to a water-tight geometry, and finally an MCNP radiation transport input deck automatically. This includes the automatic registration of detectors and placement of pre-generated radiation transport models of these detectors in the scene.
Swinney, Mathew↗
Simulation of Workflow and Threat Characteristics for Cyber Security Incident Response Teams.
Abstract not provided.
Reed, Theodore M↗
An Effective Earned Value Management System (EVMS) is a Team Sport
We present a novel framework to assess 27 earned value management system (EVMS) environment factors and investigate their impact on project performance. A study of the EVMS literature, a survey of practitioners, and focus group meetings with 36 EVMS industry and government experts, supported the development of the framework. Focus groups involving 80 practitioners refined and tested it. We analyzed performance data from 35 completed projects/programs representing over US$21.8 billion in total cost; a project demonstrating a positive environment could save up to 25% in cost versus baseline. Practitioners can develop an effective EVMS environment by following the provided guidance.
Aramali, Vartenie↗
More Than 410,000 Hours of Real-World Fuel Cell System Operation Have Been Analyzed by NREL's Technology Validation Team (Fact Sheet)
This fact sheet discusses how researchers at the National Renewable Energy Laboratory (NREL) are working to validate hydrogen and fuel cell systems in real-world settings. NREL strives to provide an independent third-party technology assessment that focuses on fuel cell system and hydrogen infrastructure performance, operation, maintenance, and safety.
08 HYDROGEN↗
It's SO Easy Being Green: Team Driven Workplace Solutions - Booth #619
No abstract prepared.
59 BASIC BIOLOGICAL SCIENCES↗
Sigma Team for Minor Actinide Separation: PNNL FY 2011 Status Report
This report summarizes work conducted in FY 2011 at PNNL to investigate new methods of separating the minor actinide elements (Am and Cm) from the trivalent lanthanide elements, and separation of Am from Cm. For the former, work focused on a solvent extraction system combining an acidic extractant (HDEHP) with a neutral extractant (CMPO) to form a hybrid solvent extraction system referred to as TRUSPEAK (combining the TRUEX and TALSPEAK processes). For the latter, ligands that strongly bing uranyl ion were investigated for stabilizing corresponding americyl ion.
22 GENERAL STUDIES OF NUCLEAR REACTORS↗
Analytical Capability of Plasma Spectrometry Team [Slides]
Samples analyzed were: (1) Pu and U metal; (2) Pu oxide for nuclear fuel; (3) 23 8Pu oxide for heat source; and (4) Nuclear forensic samples - filters, swipes. Sample preparations that we did were: metal dissolution, marple filter dissolution, Pu oxide closed vessel acid digestion, and column separation to remove Pu.
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS↗
Fuel Cell Tech Team Meeting: Engineered Nano-scale Ceramic Supports for PEM Fuel Cells [Slides]
Catalyst support durability is currently a technical barrier for commercialization of polymer electrolyte membrane (PEM) fuel cells, especially for transportation applications. Degradation and corrosion of the conventional carbon supports leads to losses in active catalyst surface area and, consequently, reduced performance. As a result, the goal of this work is to develop support materials that interact strongly with Pt, yet sustain bulk-like catalytic activities with very highly dispersed particles. Ceramic materials that are prepared using conventional solid-state methods have large grain sizes and low surface areas that can only be minimally ameliorated through grinding and ball milling. Other synthesis routes to produce ceramic materials must be investigated and utilized in order to obtain desired surface areas. In this work, several different synthesis methods are being utilized to prepare electronically conductive ceramic boride, nitride, and oxide materials with high surface areas and have the potential for use as PEMFC catalyst supports. Polymer-assisted deposition (PAD) and aerosol-through plasma (A-T-P) torch are among several methods used to obtain ceramic materials with surface areas that are equal to, or exceed Vulcan XC-72R supports. Cubic Mo-based ceramic phases have been prepared with average XRD-determined crystallite sizes as low as 1.6 nm (from full profile, XRD fitting) and a BET surface area exceeding 200 m 2 /g. Additionally, black, sub-stoichiometric TiO 2-x , have been prepared with an average crystallite size in the 4 nm range and surface areas exceeding 250 m 2 /gr. Pt disposition using an incipient wetness approach produced materials with activity for hydrogen redox reactions and ORR. Cyclic voltammetry data will be shown for a variety of potential Pt/ceramic catalysts. Initial experiments indicate enhanced Pt metal-support interactions as well. Plane wave periodic density functional calculations (VASP) are being used to predict the thermodynamic and activation barriers for fundamental electrode processes occurring at platinum surfaces supported on thin films of the ceramic support materials. The results of this work will be used in order to optimize support properties.
08 HYDROGEN↗
Environmental Microbiology team capability relevant to Arctic climate change studies - Dogliani Norway visit [Slides]
The goal is for ecosystem measurements combined with modeled changes in landscape dynamics, to estimate impacts of warming, subsequent ecosystem responses and feedbacks on atmospheric carbon.
54 ENVIRONMENTAL SCIENCES↗
Atmosphere, Climate and Ecosystem Sciences Team Summary
We engage in experimental and observational research and operations, with the goal of improving theory and models of climate change impacts and feedbacks for human and natural systems. We have a strong focus on understanding and quantifying carbon and water cycles, vegetation dynamics, aerosol-cloud interactions, and landscapes.
54 ENVIRONMENTAL SCIENCES↗
NREL-Led Team Improves and Accelerates Battery Design [Fact Sheet]
The National Renewable Energy Laboratory (NREL) is leading some of the best minds from U.S. auto manufacturers, battery developers, and automotive simulation tool developers in a $\$$20 million project to accelerate the development of battery packs and thus the wider adoption of electric-drive vehicles. The Computer-Aided Engineering for Electric Drive Vehicle Batteries (CAEBAT) collaboration is developing sophisticated software tools to help improve and accelerate battery design and boost the performance and consumer appeal of electric-drive vehicles with the ultimate goal of diminishing petroleum consumption and polluting emissions.
25 ENERGY STORAGE↗
High Efficiency Structural Flowthrough Rotor with Active Flap Control: Volume Three: Market & Team
The Zimitar one-piece rotor primary structure is integrated, so balanced thrust and gravity loads flow through the hub region without transferring out of its composite material. Large inner rotor geometry is used since there is no need to neck down to a blade root region and pitch bearing. Rotor control is provided by a highly redundant, five flap system on each blade, sized so that easily handled standard electric linear actuators are sufficient.
17 WIND ENERGY↗