A5014906744- Wind and Air Flow Studies
- Atmospheric chemistry and aerosols
- Combustion and Detonation Processes
- Meteorological Phenomena and Simulations
- Risk and Safety Analysis
- Air Quality and Health Impacts
- Fire dynamics and safety research
- Atmospheric and Environmental Gas Dynamics
- Particle Accelerators and Free-Electron Lasers
- Energetic Materials and Combustion
- Thermal and Kinetic Analysis
- Urban Heat Island Mitigation
- Noise Effects and Management
- Nuclear and radioactivity studies
- Advanced X-ray Imaging Techniques
- Integrated Circuits and Semiconductor Failure Analysis
- Radioactive contamination and transfer
- Particle Detector Development and Performance
- Particle accelerators and beam dynamics
- Vehicle emissions and performance
- Aerodynamics and Fluid Dynamics Research
- Advanced Radiotherapy Techniques
- Atmospheric aerosols and clouds
- Fire effects on ecosystems
- Heat Transfer and Boiling Studies
RAND Corporation
2018-2024
Northwestern University
2023
Allen Institute
2023
Massachusetts Institute of Technology
2023
University of California, Berkeley
2023
University of Washington
2023
George Mason University
1970-2021
Naval Surface Warfare Center
2010-2020
NSWC Indian Head
2018-2020
United States Department of Homeland Security
2008-2016
Results of evaluations transport and dispersion models with field data are summarized. The California Puff (CALPUFF), Hazard Prediction Assessment Capability (HPAC), Chemical/Biological Agent Vapor, Liquid, Solid Tracking (VLSTRACK) were compared using two recent mesoscale datasets—the Dipole Pride 26 (DP26) the Overland Along-wind Dispersion (OLAD). Both experiments involved instantaneous releases sulfur hexafluoride tracer gas in a region desert basins mountains. DP26 point sources, OLAD...
Abstract After the terrorist incidents on 11 September 2001, there is a greatly heightened concern about potential impacts of acts terrorism involving atmospheric release chemical, biological, radiological, and nuclear (CBRN) materials in urban areas. In response to need for an CBRN model, Urban Hazard Prediction Assessment Capability (Urban HPAC) transport dispersion model has been developed. Because HPAC widely used by Department Defense community planning, training, operational tactical...
In a complex environment such as an urban area, accurate prediction of the atmospheric dispersion airborne harmful materials radioactive substances is necessary for establishing response actions and assessing risk or damage. Given variety models available, evaluation inter-comparison exercises are vital quantitatively qualitatively their capabilities differences. To that end, European Commission/Directorate General Joint Research Centre with support from General-Migration Home Affairs,...
Kyle Lo, Zejiang Shen, Benjamin Newman, Joseph Chang, Russell Authur, Erin Bransom, Stefan Candra, Yoganand Chandrasekhar, Regan Huff, Bailey Kuehl, Amanpreet Singh, Chris Wilhelm, Angele Zamarron, Marti A. Hearst, Daniel Weld, Doug Downey, Luca Soldaini. Proceedings of the 2023 Conference on Empirical Methods in Natural Language Processing: System Demonstrations. 2023.
The field program phase of the Lake Michigan Ozone Study (LMOS) took place during summer 1991. Observed ozone concentrations and weather variables have been analyzed for region eastern United States four 1991 LMOS episodes covering 21 days. It is found that all are associated with large polluted regions dimensions 1000–2000 km, located on western side high pressure systems centered over States. Consequently, air coming into contains significant amounts ozone, haze, other pollutants advected...
The capabilities of nine atmospheric dispersion models in predicting near-field from puff releases an urban environment are addressed under the Urban Dispersion INternational Evaluation Exercise (UDINEE) project. model results evaluated using tracer observations Joint 2003 (JU2003) experiment where neutrally-buoyant puffs were released downtown area Oklahoma City, USA. Sulphur hexafluoride concentration time series measured at ten sampling locations during four daytime and night-time used to...
The March 2011 tragedy at the coastal Fukushima Daiichi nuclear plant created a contaminant release that was transported and dispersed in both air sea. Two months after event, authors began planning for special July conference session (“Fukushima crisis: Air sea transport modeling” 15th Annual Conference on Atmospheric Transport Dispersion Modeling; see http://camp.cos.gmu.edu/Agenda-fifteenth-GMU-Conference.pdf) to draw together experts who were directly involved scientific modeling...
Although numerous methods exist for the theoretical calculation of detonation parameters explosives, few thermodynamic-hydrodynamic-based codes take into account particle size. The basis their computational analysis is primarily focused on equation state products, heat formation, and density explosive composition. This study utilized regression to model relationship between microstructure characteristics velocity a heterogeneous high-explosive composition containing...