1–20 von 115 Ergebnissen
|

    Development of Electric and Chemical Microthrusters

    Freier Zugriff
    M. Tajmar / C. A. Scharlemann | DOAJ | 2011
    The increasing application of microsatellites (from 10 kg up to 100 kg) as well as CubeSats for a rising number of various missions demands ...

    Chemical Rocket Propulsion

    Freier Zugriff
    David Greatrix / Ivett Leyva / Dario Pastrone et al. | DOAJ | 2012

    Consequences of Maritime Critical Infrastructure Accidents with Chemical Releases

    Freier Zugriff
    Magda Bogalecka | DOAJ | 2019
    The probabilistic general model of critical infrastructure accident consequences including three models of the process of the initiating ...
    Schlagwörter: chemical releases

    Determinants of Operational Efficiency at Chemical Cargo Terminals

    Freier Zugriff
    T.A. Gúlcan / S. Esmer / Y. Zorba et al. | DOAJ | 2014
    . This study is focus on chemical cargo terminals which is a special terminal form where high and international levels of safety and quality ...
    Schlagwörter: Chemical Cargo , Chemical Cargo Terminal

    Synthesis of Gd2SiO5 nano-powders by cocurrent chemical co-precipitation method

    Freier Zugriff
    LIU Rong / WANG Yalei / WU Nannan et al. | DOAJ | 2021
    In this paper, nano-sized Gd2SiO5 powder was synthesized by a cocurrent chemical co-precipitation method with Gd2O3 and TEOS as raw ...
    Verlag: Journal of Aeronautical Materials

    Chemical Contamination Sensor for Phosphate Ester Hydraulic Fluids

    Freier Zugriff
    Sumit Paul / Wolfgang Legner / Angelika Krenkow et al. | DOAJ | 2010
    The paper deals with chemical contamination monitoring in phosphate-ester-based hydraulic fluids using nondispersive infrared (NDIR ...

    A study on minimum weight design of vertical corrugated bulkheads for chemical tankers

    Freier Zugriff
    Sang-Hoon Shin / Dae-Eun Ko | DOAJ | 2018
    bulkhead have been mostly carried out for bulk carriers. Compared to corrugated bulkheads of bulk carriers, ones of chemical tankers are more ...

    Tribological Property of C/C-SiC Composites Fabricated by Isothermal Chemical Vapor Infiltration

    Freier Zugriff
    WANG Yueming / SHI Qilong | DOAJ | 2017
    Four kinds of C/C-SiC composites were fabricated by isothermal chemical vapor infiltration (ICVI), and the 2.5D needle-punching carbon felt ...
    Verlag: Journal of Aeronautical Materials

    Characterization and mechanism of porous silicon carbide ceramics processed by high temperature chemical corrosion

    Freier Zugriff
    LIU Shanyong / WANG Yuling / SUN Shufeng et al. | DOAJ | 2019
    can slow down the decrease of porosity. Under the optimized process parameters, the high temperature chemical corrosion can reduce the ...
    Verlag: Journal of Aeronautical Materials
    Schlagwörter: high temperature chemical etching

    Research progress on SiCN ceramic prepared at low temperature by chemical vapor deposition

    Freier Zugriff
    MU Yangyang / TU Jianyong / XUE Jimei et al. | DOAJ | 2019
    Chemical vapor deposition (CVD) is a new technology for preparing inorganic materials which possess some advantages, such as lower ...
    Verlag: Journal of Aeronautical Materials

    Design Tradeoffs in Full Electric, Hybrid and Full Chemical Propulsion Communication Satellite

    Freier Zugriff
    Ü.cezmi Yılmaz / İbrahim Oz | DOAJ | 2019
    hybrid propulsion selection causes results in significant reduction in satellite propellant mass. Conventional full chemical satellite propellant ...
    Schlagwörter: full chemical

    Effect of physical and chemical parameters of graphene on friction and wear properties of PTFE filled with low content graphene

    Freier Zugriff
    ZHU Qiaosi / LI Jiongli / GUO Jianqiang et al. | DOAJ | 2020
    4 types of graphene were used to fabricate graphene/polytetrafluoroethylene (PTFE) composites with loadings of 0.5% and 1% respectively ...
    Verlag: Journal of Aeronautical Materials

    A Combined Method For Determining The Contributing Factors To Chemical Spills In Port Areas During Maritime Dangerous Cargo Transport

    Freier Zugriff
    Özge Eski / Leyla Tavacioglu | DOAJ | 2022
    analysis method was applied to calculate the correlational degrees of contributing factors. Most chemical spills in port areas occur during cargo ...
    Schlagwörter: Chemical engineering

    Influence of Imidization Method on Properties of Fluorinated Polyimide Films

    Freier Zugriff
    ZHANG Mingyan / GAO Sheng / WU Zijian et al. | DOAJ | 2018
    Thermal imidization restricts the application of fluorinated polyimide, but the low temperature imidization could cause a certain impact on ...
    Verlag: Journal of Aeronautical Materials
    Schlagwörter: chemical imidization

    Ecological Safety of the Baltic Sea in the Aspects of Corrosive Reprocessing of Containers with Toxic Warfare Agents

    Freier Zugriff
    Fabisiak Jacek / Jurczak Wojciech / Szubrycht Grażyna et al. | DOAJ | 2018
    Issue of Corrosion of chemical ammunition dumped in Baltic Sea after WW2 is actual because of recent accidents involving contamination of ...

    Influence of Acid Etching on Wettability of Ion-exchanged Aluminosilicate Float Glass

    Freier Zugriff
    LI Xiaoyu / JIANG Liangbao / LI Lei et al. | DOAJ | 2016
    The influence of acid etching time on wettability of ion-exchanged aluminosilicate float glass was investigated. The contact angle ...
    Verlag: Journal of Aeronautical Materials
    Schlagwörter: chemical strengthening

    Review of Maritime Accidents Involving Chemicals – Special Focus on the Baltic Sea

    Freier Zugriff
    J.M. Häkkinen / A.I. Posti | DOAJ | 2014
    Transport and handling of hazardous chemicals and chemical products around the world’s waters and ports have considerably increased over ...
    Schlagwörter: Chemical Cargo , Chemical Product , Risk of Explosion , Chemical Accident , Analysis of Sea Accidents 

    ASSESSING THE ENVIRONMENTAL IMPACT OF ROADWAY’S CONSTRUCTION ON ADJACENT WATER RESOURCES: A CASE STUDY OF THE SOUTHERN PART OF ALBANIA

    Freier Zugriff
    Blerina BEQAJ | DOAJ | 2022
    southern part of Albania, on physic-chemical parameters of surface water by collecting water samples from Skotini stream. The analysed parameters ...
    Verlag: Silesian University of Technology
    Schlagwörter: physic-chemical parameters

    Use of Mahua oil for rejuvenation of the aged binder through laboratory investigations

    Freier Zugriff
    Sujit Kumar Pradhan / Umesh Chandra Sahoo | DOAJ | 2022
    (biological name: Madhuca Longifolia) as a potential rejuvenator through rheological, chemical, and thermal characterization of the rejuvenated RAP ...

    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 ...