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    Use of Accelerated Aging to Predict Behavior of Recycled Materials in Concrete Pavements: Physical and Environmental Comparison of Laboratory-Aged Samples with Field Pavements

    Taylor Eighmy, T. / Cook, Raymond A. / Gress, David L. et al. | Transportation Research Record | 2002
    were used to examine the pavement slab and the aged laboratory prisms. The aging protocol affected both physical and chemical properties of the ...

    Unsteady Simulations of Rocket Plume Expansions in Geostationary Earth Orbit

    Weaver, Andrew B. / Boyd, Iain D. | AIAA | 2017

    Unsteady, direct simulation Monte Carlo/particle-in-cell simulations of rocket plume expansions into the magnetosphere at geostationary

     ...
    Verlag: The American Institute of Aeronautics and Astronautics
    Schlagwörter: Chemical Rocket

    Unsteady Combustor Physics

    Maas, Ulrich | AIAA | 2014
    Verlag: The American Institute of Aeronautics and Astronautics
    Schlagwörter: Chemical Kinetics

    Unpaved Road Dust Control in the Piceance Creek Basin in Rio Blanco County, Colorado

    Sanders, Thomas G. / Quayenortey, Jonathan A. / Jorgensen, Dan | ASCE | 2014
    initiated to investigate the effectiveness of several chemical dust suppressants in reducing dust emissions, thus prolonging the intervals between ...
    Verlag: American Society of Civil Engineers

    Unmanned planetary spacecraft chemical rocket propulsion.

    BURLAGE, H. / GIN, W. / RIEBLING, R. W. | AIAA | 1972
    Verlag: The American Institute of Aeronautics and Astronautics

    Unified Approach for Meso-Informed Burn Models in Shocked Energetic Materials

    Udaykumar, H. S. / Sen, Oishik / Lee, Sangyup et al. | AIAA | 2020
    models. One requirement of burn models is to supply a macroscale control volume with an energy release rate due to chemical reactions that ...
    Verlag: The American Institute of Aeronautics and Astronautics
    Schlagwörter: Chemical Energy

    Unified Analysis of Internal Flowfield in an Integrated Rocket Ramjet Engine. I: Transition from Rocket Booster to Ramjet Sustainer

    Sung, Hong-Gye / Yang, Vigor | ASCE | 2012
    -ramjet (IRR) propulsion system. The study consists of two parts: transition from the rocket booster to the ramjet sustainer and combustion ...
    Verlag: American Society of Civil Engineers

    Understanding the Sensitivity of Mixture Cracking Performance Tests to Binder Properties and Long-Term Aging

    Elwardany, Michael / Veginati, Varun / Andriescu, Adrian et al. | Transportation Research Record | 2023
    , chemical, rheological, and fracture properties were obtained from extracted binders to obtain a better understanding of the impact of binder ...

    Understanding of controlled autoignition combustion in a four-stroke gasoline engine

    Zhao, H / Peng, Z / Ladommatos, N | SAGE Publications | 2001
    and particulate emissions. Since CAI combustion is a process dominated by chemical kinetics of the fuel-air mixture, an engine simulation ...

    Unconfined compressive strength of clayey soils stabilized with waterborne polymer

    Naeini, Seyed Abolhassan / Naderinia, Bahman / Izadi, Ehsan | Springer Verlag | 2012
    Abstract Improvement and stabilization of soils are widely used as an alternative to substitute the lacking of ...
    Verlag: Korean Society of Civil Engineers , Heidelberg

    Uncertainty Quantification on the High-Temperature Kinetics of Dioxygen Dissociation and Oxygen Recombination

    Miki, Kenji | AIAA | 2017
    it is found that the estimated reaction rate is close to Park’s model (“Review of Chemical-Kinetic Problems of Future NASA Mission, I: Earth ...
    Verlag: The American Institute of Aeronautics and Astronautics
    Schlagwörter: Chemical Kinetic Problems , Chemical Equilibrium

    Uncertainty in maritime risk analysis: Extended case study on chemical tanker collisions

    Sormunen, Otto-Ville E / Goerlandt, Floris / Häkkinen, Jani et al. | SAGE Publications | 2015
    article discusses a case study dealing with risk analysis for a chemical spill in the Gulf of Finland and analyses the related uncertainties by ...
    Schlagwörter: Chemical tankers , Gulf of Finland

    Uncertainty and Sensitivity Analysis of Afterbody Radiative Heating Predictions for Earth Entry

    West, Thomas K. / Johnston, Christopher O. / Hosder, Serhat | AIAA | 2016
    level 2 and level 5 and rates of three chemical reactions influencing N ...
    Verlag: The American Institute of Aeronautics and Astronautics
    Schlagwörter: Angle of Attack

    Uncertainty Analysis of Reaction Rates in a Finite-Rate Surface-Catalysis Model

    Sorensen, Cory / Valentini, Paolo / Schwartzentruber, Thomas E. | AIAA | 2012
    Verlag: The American Institute of Aeronautics and Astronautics
    Schlagwörter: Chemical Energy

    Uncertainty Analysis of Radiative Heating Predictions for Titan Entry

    West, Thomas K. / Brune, Andrew J. / Hosder, Serhat et al. | AIAA | 2015
    chemical rate models, molecular band emission, and the excitation/deexcitation rates of molecules modeled with a non-Boltzmann approach. Because of ...
    Verlag: The American Institute of Aeronautics and Astronautics

    Ultraviolet Fixation of Molecular Contamination: Physical Model Numerical Implementation and Validation

    Roussel, Jean-François / Vanhove, Emilie / Tondu, Thomas et al. | AIAA | 2016
    this model, the substrate excitation is followed by the reaction of adsorbed contaminants with excited sites. Contaminant chemical ...
    Verlag: The American Institute of Aeronautics and Astronautics

    Ultra-lightweight Concrete Containing Expanded Poly-lactic Acid as Lightweight Aggregate

    Sayadi, Aliakbar / Neitzert, Thomas R. / Clifton, G. Charles et al. | Springer Verlag | 2018
    chemical reactivity of EPLA significantly changes the hydration products of concrete and causes concrete carbonation as well as the conversion of ...
    Verlag: Korean Society of Civil Engineers , Seoul

    Ultrafine Portland cement grouting performance with or without additives

    Mollamahmutoğlu, Murat / Avci, Eyübhan | Springer Verlag | 2014
    Abstract The aim of this experimental study was to investigate the penetrability of ultrafine Portland cement ...
    Verlag: Korean Society of Civil Engineers , Seoul

    Two-Temperature Modeling of Nonequilibrium Relaxation and Dissociation in Shock-Heated Oxygen

    Aiken, Timothy T. / Boyd, Iain D. | AIAA | 2023
    measured data from reflected shock tube experiments. A computationally efficient multistep technique is developed to model the unsteady dynamics of ...
    Verlag: The American Institute of Aeronautics and Astronautics
    Schlagwörter: Thermochemistry and Chemical Kinetics

    Two-Dimensional Model for Liquid-Rocket Transverse Combustion Instability

    Sirignano, William A. / Popov, Pavel P. | AIAA | 2013
    circular combustion chamber are examined with the primary flow in the axial direction. Turbulent mixing of methane and gaseous oxygen with coaxial ...
    Verlag: The American Institute of Aeronautics and Astronautics
    Schlagwörter: Chemical Kinetics

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