A5040141774- Methane Hydrates and Related Phenomena
- Seismic Waves and Analysis
- Geophysics and Gravity Measurements
- Ionosphere and magnetosphere dynamics
- Earthquake Detection and Analysis
- Solar and Space Plasma Dynamics
- Seismology and Earthquake Studies
- Advanced Combustion Engine Technologies
- Planetary Science and Exploration
- Combustion and flame dynamics
- Combustion and Detonation Processes
- Astro and Planetary Science
- Space Exploration and Technology
- Space Science and Extraterrestrial Life
- Spacecraft Design and Technology
- Chemical Thermodynamics and Molecular Structure
- Atmospheric chemistry and aerosols
- Distributed and Parallel Computing Systems
- Geological and Geophysical Studies
- Scientific Computing and Data Management
- Catalytic Processes in Materials Science
- Space exploration and regulation
- Plant Molecular Biology Research
- Advanced Algebra and Geometry
- Algebraic structures and combinatorial models
Environmental Molecular Sciences Laboratory
2011-2024
Pacific Northwest National Laboratory
2011-2024
Government of the United States of America
2023
Eötvös Loránd University
2004-2021
Institute of Materials and Environmental Chemistry
2016
University of Leeds
2016
University of Pecs
2015
A comprehensive and hierarchical optimization of a joint hydrogen syngas combustion mechanism has been carried out. The Kéromnès et al. (Combust Flame, 2013, 160, 995–1011) for was updated with our recently optimized (Varga al., Proc Combust Inst, 2015, 35, 589–596) using set direct indirect experimental data relevant to combustion. collection consisted ignition measurements in shock tubes rapid compression machines, burning velocity measurements, species profiles measured tubes, flow...
Abstract The determination of rate parameters gas‐phase elementary reactions is usually based on direct measurements. obtained in many independent measurements are then used reaction mechanisms, which tested against the results indirect experiments, like time‐to‐ignition or laminar flame velocity We suggest a new approach that takes into account both and optimizes all influential parameters. First, domain feasibility Arrhenius determined from available Thereafter, optimal sought within this...
A detailed reaction mechanism for ethanol combustion was developed describing ignition, flame propagation, and species concentration profiles with high accuracy. Starting from a modified version of the Saxena Williams (Proc. Combust. Inst. 2007, 31, 1149–1156) adopting H2/CO base chemistry joint optimized hydrogen syngas Varga et al. (Int. J. Chem. Kinet. 2016, 48, 407–422), an optimization 54 Arrhenius parameters 16 important elementary C1/C2 reactions performed using several thousand...
With growing populations and pressing environmental problems, future economies will be increasingly plant-based. Now is the time to reimagine plant science as a critical component of fundamental science, agriculture, stewardship, energy, technology healthcare. This effort requires conceptual technological framework identify map all cell types, comprehensively annotate localization organization molecules at cellular tissue levels. framework, called Plant Cell Atlas (PCA), for understanding...
Freeze-thaw events disrupt soil pore structure, with implications for larger scale greenhouse gas fluxes and nutrient balance in winter the growing season. Given its strong influence on C N cycling, we need a better understanding of how structure is altered by freeze-thaw disturbances. Our objective was to investigate quantify changes physical soil, response experimental disturbance. We collected intact cores from northern hardwood forest New Hampshire, USA. The soils were held at...
ABSTRACT The optimization of a kinetic mechanism the pyrolysis ethyl iodide was carried out based on data obtained from reflected shock wave experiments with H‐ARAS and I‐ARAS detection. analysis took into account also measurements Michael et al. ( Chem. Phys. Lett. 2000, 319, 99–106) Vasileiadis Benson Int. J. Kinet . 1997, 29, 915–925) reaction H 2 + I = HI. following Arrhenius parameters were determined for temperature range 950–1400 K pressure 1–2 bar: C 5 → I: log 10 A ) 13.53, E / R...
A re-evaluation of the flow reactor experiments Abián et al. (Abián, M.; Alzueta, M. U.; Glarborg, P. Formation NO from N2/O2 Mixtures in a Flow Reactor: Toward an Accurate Prediction Thermal NO. Int. J. Chem. Kinet. 2015, 47, 518−532, DOI: 10.1002/kin.20929) is presented. In these experiments, nitrogen oxide formation was measured at atmospheric pressure temperature range 1700–1810 K using several mixtures containing different ratios oxygen, nitrogen, and water vapor. On basis mechanism...
Methyl radicals (15% at 1–2 Torr He) have been detected as primary products from the reaction of OH with acetaldehyde.
The aim of several combustion experiments is the determination rate coefficients important elementary reactions. experimental conditions are usually selected on basis local sensitivity analysis. Shock tube and tubular flow reactor often designed in such a way that only one reaction step at investigated conditions. Sheen Manion (J. Phys. Chem. A, 118 (2014) 4929–4941) suggested method for design shock based differential entropy. Their was modified extended this work. In method, both residual...