1–20 von 2,846 Ergebnissen
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    Effects of Thermal and Chemical Nonequilibrium on Response of Charring Ablative Materials

    Coskun, Volkan / Sert, Cuneyt | AIAA | 2024
    evaluation of thermodynamic/transport properties of pyrolysis gas mixture and chemical kinetics, if necessary. Thermal nonequilibrium between the ...
    Verlag: The American Institute of Aeronautics and Astronautics

    Chemical and Rheological Properties of Bitumen Partially Substituted with Rice-Straw-Based Lignin from Bio-Ethanol Industry Residue

    Andiyappan, Thavamani / Banapuram, Rahul Reddy / Minchala, Divakar et al. | Transportation Research Record | 2024

    The objective of this study is to evaluate the changes in the chemical and rheological properties of bitumen when partially substituted

     ...

    Review of research progress of autonomous and unmanned shipping and identification of future research directions

    Jovanović, Ivana / Perčić, Maja / BahooToroody, Ahmad et al. | Taylor & Francis Verlag | 2024

    The maritime industry is following the trend of increased autonomy and digitalisation applied in aviation, automotive, military, and

     ...

    Direct Numerical Simulation of Nonequilibrium Effects on Decaying Isotropic Turbulence

    Kerkar, Pawan P. / Ghosh, Shankar | AIAA | 2024
    gas in the simulations. The individual and combined effects of vibrational relaxation and chemical reactions are studied by considering four ...
    Verlag: The American Institute of Aeronautics and Astronautics
    Schlagwörter: Chemical Kinetics

    Evaluation of Physical and Physicochemical Properties of Bitumen with Lignin from Bio-ethanol Residue

    Andiyappan, Thavamani / Kuna, Kranthi Kumar | Springer Verlag | 2024
    obtained from the bio-ethanol industry as a partial substitution for bitumen. The study investigated how the chemical composition of lignin ...

    Family of Skeletal Reaction Mechanisms for Methane–Oxygen Combustion in Rocket Propulsion

    Liberatori, Jacopo / Malpica Galassi, Riccardo / Bianchi, Daniele et al. | AIAA | 2024

    Analyzing methane–oxygen rocket propellant combinations requires suitable modeling of the major chemical reaction processes. Although

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    Verlag: The American Institute of Aeronautics and Astronautics
    Schlagwörter: Chemical Kinetics

    Impact of Clay Contamination on Rutting Performance of Asphalt Mixtures

    Freier Zugriff
    Afsha, Sharmila / Vaid, Suhail R. / Montoya, Miguel A. et al. | Transportation Research Record | 2024
    and dolomite) and active (i.e., bentonite and natural) clays. The methylene blue value (MBV) was used to classify the level of chemical ...

    Numerical Investigation of Diffusion Flame in Transonic Flow with Large Pressure Gradient

    Zhu, Yalu / Liu, Feng / Sirignano, William A. | AIAA | 2024
    -preserving splitting scheme for the stiff source terms in chemical reactions. Laminar and turbulent reacting flows in a mixing layer with a large ...
    Verlag: The American Institute of Aeronautics and Astronautics
    Schlagwörter: Chemical Kinetics

    Comprehensive Selection of Base Asphalt Binders for Effective Formulation of Polymer-Modified Asphalts

    Kumbargeri, Yogesh / Planche, Jean-Pascal / Adams, Jeramie J. et al. | Transportation Research Record | 2024
    -depth physical, chemical, rheological, and microstructure characterization of base (neat/unmodified) and corresponding PMA binders to understand ...

    Characteristics of microstructures and mechanical properties of 3 GPa ultrahigh strength maraging steel

    Freier Zugriff
    GENG Ruming / CUI Yongen / WU Bing et al. | DOAJ | 2024
    The miniaturization and lightweight development of aerospace systems have raised higher requirements for the strength and ductility of ...
    Verlag: Journal of Aeronautical Materials

    The Spectral Characterization of Novel Spacecraft Materials in the Low Earth Orbit Environment

    Plis, Elena A. / Badura, Gregory | Springer Verlag | 2024
    aggressive chemical species present in Earth's upper atmosphere. By gaining a thorough understanding of how these material properties evolve over the ...

    Bidirectional Reflectance Distribution Function (BRDF) Measurement of Materials Aged Under Simulated Space Environment

    Shah, Jainisha / Badura, Gregory / Hoffmann, Ryan et al. | Springer Verlag | 2024
    . However, exposure to solar radiation and aggressive chemical species in the upper atmosphere alters these materials’ physical, chemical, and ...

    Field Aging and Binder Fatigue Performance of Intermediate Asphalt Concrete Layers Containing Reclaimed Asphalt Pavement

    Freier Zugriff
    Rahman, Mohammad A. / Harvey, John T. / Jiao, Liya et al. | Transportation Research Record | 2024
    the aging and fatigue performance of the intermediate layer of the asphalt pavement. The chemical and rheological aging properties of the ...

    Freeze–Thaw Performance Trends of Short-Term Cured Cement-Stabilized Aggregate Quarry By-Product Materials

    Kong, Taeyun / Kothari, Chirayu / Qamhia, Issam I. A. et al. | Transportation Research Record | 2024
    -term cementitious reaction and repeated freezing and thawing. This study investigated the influence of QB chemical composition on the strength ...

    Development of Aggregate Dielectric Constant Database Protocol for Asphalt Concrete Density Prediction

    Abufares, Lama / Al-Qadi, Imad L. | Transportation Research Record | 2024
    is detailed. Advanced chemical tests confirmed that the aggregate dielectric constant is a function of its elemental/mineral compositions ...

    Use of Artificial Neural Network to Develop Surrogates for Hydrotreated Vegetable Oil with Experimental Validation in Ignition Quality Tester

    Joshi, Gaurav / Henein, Naeim / Alkhayat, Samy | SAE Technical Papers | 2024
    This article presents surrogate mixtures that simulate the physical and chemical properties in the auto-ignition of ...
    Verlag: Society of Automotive Engineers , SAE International

    Long-Term Performance of Soybean-Based Concrete Surface Protectant under Laboratory Accelerated Aging Conditions

    Houshmand Khaneghahi, Mohammad / Mutua, Angela / He, Jialuo et al. | Transportation Research Record | 2024
    chemical compositions remained unaffected by AAC, in contrast to the control samples where a decrease in the quantity of calcium hydroxide and an ...

    Design, Multiperspective Investigations, and Performance Analysis of Multirotor Unmanned Aerial Vehicle for Precision Farming

    Freier Zugriff
    Darshan Kumar Jayaram / Vijayanandh Raja / Beena Stanislaus Arputharaj et al. | DOAJ | 2024
    population. UAV technology is part of the agriculture revolution, which aims to boost crop yields, properly monitor fields, and handle manpower ...

    Reliability analysis based on load spectrum: A structural improvement of Indian Railways three-piece freight bogie elastomeric pad

    Shukla, Sanjay / Thaplyal, Manish / Gautam, Abhishek Kumar et al. | SAGE Publications | 2024
    existing EM pads. Further, chemical and physical properties are also evaluated in M&C (Metallurgical and Chemical) and Testing Directorate of ...

    Mechanical Properties and Neural Network Prediction of Cement Fly Ash-Enhanced Roadbed Soil in Seasonal Frozen Zones Under Short-Term Curing

    Cui, Gaohang / Cheng, Zhuo / Sun, Fanyue et al. | Springer Verlag | 2024
    and cement as modifiers on the physical properties and chemical composition of subgrade soil. The study found that cement admixtures can ...
    Verlag: Korean Society of Civil Engineers , Seoul