41–60 von 134 Ergebnissen
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    Optimization Modeling and Empirical Research on Gasoline Octane Loss Based on Data Analysis

    Freier Zugriff
    Ji Guo / Yujia Lou / Wanyi Wang et al. | DOAJ | 2021
    chemical enterprises, saving the economic cost of chemical enterprises, and protecting the atmospheric environment. ...

    Numerical Simulation of Reactive Flows in Overexpanded Supersonic Nozzle with Film Cooling

    Freier Zugriff
    Mohamed Sellam / Amer Chpoun | DOAJ | 2015
    necessary to understand both aerodynamic and chemical mechanisms that are at the origin of these processes. This paper is a numerical contribution ...

    Numerical Investigation of Inlet Thermodynamic Conditions on Solid Fuel Ramjet Performances

    Freier Zugriff
    Weixuan Li / Dan Zhao / Xiong Chen et al. | DOAJ | 2021
    of a solid fuel ramjet (SFRJ) with different inlet conditions. This is achieved by using an in-house FORTRAN code to simulate a 2D turbulent ...

    Numerical Investigation of an Axisymmetric Model Scramjet Assisted with Cavity of Different Aft Wall Angles

    Freier Zugriff
    Guangwei Ma / Mingbo Sun / Guoyan Zhao et al. | DOAJ | 2021
    nonreacting flow field. The configuration of the cavity shear layer changes hugely due to the significant chemical reaction and heat release in the ...

    NATURAL AGEING EFFECTS ON MICROSTRUCTURE AND PROPERTIES OF RAIL FASTENING ELEMENTS SKL-12

    Freier Zugriff
    Krzysztof LABISZ / Jarosław KONIECZNY | DOAJ | 2020
    lattice structure determination, EDS chemical microanalysis and Rockwell hardness testing were also carried out in terms of identification of the ...
    Verlag: Silesian University of Technology

    Multidisciplinary Design Optimization and Analysis of Hydrazine Monopropellant Propulsion System

    Freier Zugriff
    Amirhossein Adami / Mahdi Mortazavi / Mehran Nosratollahi et al. | DOAJ | 2015
    optimize the total propulsion system, subsystems should be optimized. Chemical decomposition, aerothermodynamics, and structure disciplines demand ...

    Modelling Consequences of Maritime Critical Infrastructure Accidents

    Freier Zugriff
    Bogalecka Magda | DOAJ | 2019
    and prediction. The model also includes the cost analysis of losses associated with these chemical releases. Further, under the assumption of ...
    Schlagwörter: cost of losses

    Microstructure, strength and toughness of C/SiC composite modified by PIP-SiC matrix

    Freier Zugriff
    MENG Zhixin / ZHOU Yingying / Zhang Yi et al. | DOAJ | 2020
    The matrix of fiber bundle composite C/SiC was modified by the combination means of precursor infiltration and pyrolysis (PIP) and chemical ...
    Verlag: Journal of Aeronautical Materials

    Micromechanics-Based Viscoelasticity Predictions of Crumb Rubber Modified Bitumen Considering Polymer Network Effects

    Freier Zugriff
    Wang, Haopeng / Zhang, Hong / Liu, Xueyan et al. | Transportation Research Record | 2022
    bitumen matrix. Previous study has successfully implemented the micromechanics models in predicting the complex moduli of CRMB binders using more ...

    Mechanical Properties of Domestic T700 Grade Carbon Fibers/QY9611 BMI Matrix Composites

    Freier Zugriff
    LI Guoli / PENG Gongqiu / WANG Yingfen et al. | DOAJ | 2017
    The morphologies,surface energies and surface chemical properties of the domestic T700 grade carbon fiber and the T700S carbon fiber were ...
    Verlag: Journal of Aeronautical Materials

    Mean value first principle engine model for predicting dynamic behaviour of two-stroke marine diesel engine in various ship propulsion operations

    Freier Zugriff
    Congbiao Sui / Peter de Vos / Douwe Stapersma et al. | DOAJ | 2022
    the integrated propulsion system model of a benchmark ocean-going chemical tanker, the engine dynamic behaviour during ship acceleration ...

    Max fazi alaşimlari ve termo-fiziksel özellikleri

    Freier Zugriff
    Yrd. Doç. Dr. Altuncu, Ekrem / Türkan, Samet / Saka, Emre et al. | Springer Verlag | 2015

    Life-Cycle Approach to Healthy Airport Terminal Buildings: Spatial-Temporal Analysis of Mitigation Strategies for Addressing the Pollutants that Affect Climate Change and Human Health

    Freier Zugriff
    Greer, Fiona / Horvath, Arpad / Rakas, Jasenka | Transportation Research Record | 2022
    human health indicators are characterized using EPA’s Tool for Reduction and Assessment of Chemical Impact (TRACI) factors. ATEST is applied to ...

    Layout optimization for safety evaluation on LNG-fueled ship under an accidental fuel release using mixed-integer nonlinear programming

    Freier Zugriff
    Haris Nubli / Jung Min Sohn / Aditya Rio Prabowo | DOAJ | 2022
    separation distances are provided based on the Center of Chemical Process Safety (CCPS) recommendation. Also, several options of the separation ...

    Large Eddy Simulation of Premixed Stratified Swirling Flame Using the Finite Rate Chemistry Approach

    Freier Zugriff
    Yinli Xiao / Zhengxin Lai / Wenyan Song | DOAJ | 2019
    prediction, but temperature and concentration of major species show slight discrepancies in the central region. Two reduced chemical mechanisms are ...

    Kicking Motion Planning of Humanoid Robot Based on B-Spline Curves

    Freier Zugriff
    Chih-Cheng Liu / Yi-Chung Lin / Wei-Fan Lai et al. | DOAJ | 2022
    complex motion. This paper presents a kicking motion planning of a humanoid robot that utilizes curve trajectory planning in order to reduce the ...
    Schlagwörter: Chemical engineering

    Investigation on Aging Model of Solid Propellant Using the Degree of Crosslinking

    Freier Zugriff
    Junqi Wang / Huiru Cui / Weili Ma | DOAJ | 2022
    Solid propellant is the main part of solid rocket motor (SRM). To further investigate the service life of SRM, aging of solid propellant ...

    Interphase optimization of SiCf/Si3N4 composites

    Freier Zugriff
    DENG Yangfang / CHEN Xu / WANG Tongtong et al. | DOAJ | 2023
    SiC fiber reinforced Si3N4 composites (SiCf/Si3N4) were prepared by chemical vapor infiltration, and the mechanical properties were ...
    Verlag: Journal of Aeronautical Materials
    Schlagwörter: integration of mechanical and microwave absorbing performance

    Interfacial reaction between mullite-based inclusions and PM superalloy FGH96

    Freier Zugriff
    ZHANG Yibo / ZHENG Liang / XU Wenyong et al. | DOAJ | 2022
    The morphology and chemical composition evolution of mullite based refractory inclusions in FGH96 PM superalloy with powder state, hot ...
    Verlag: Journal of Aeronautical Materials

    Influence on properties of base metal after elimination of lifting-lug member in a dissimilar welding between steel base and steel lifting lug

    Freier Zugriff
    Jeongung Park / Gyubaek An / Haewoo Lee | DOAJ | 2019
    The increasing demands of lifting lugs can be attributed to the rapid advancement of shipbuilding and offshore-structure production ...