1–20 von 4,179 Ergebnissen
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    Mechanism Analysis of the Impact of COVID-19 on the Whole Process of Aircraft Turnaround Operations

    Freier Zugriff
    Xiaowei Tang / Jiaqi Wu / Cheng-Lung Wu et al. | DOAJ | 2024
    Efficient aircraft turnaround operations at airports are vital to ensure overall air traffic network performance. After the outbreak of ...

    Research on key risk chain mining method for urban rail transit operations: A new approach to risk management

    Freier Zugriff
    Gan Shi / Xiaobing Ding / Chen Hong et al. | DOAJ | 2024
    To ensure the safety of urban rail transit operations and uncover the transmission dynamics of risk sources, a key risk chain mining method ...

    Model of Multi-Algorithmic-Based Optimization of 4D Approach Trajectory under Thunderstorm Weather

    Freier Zugriff
    Li Lu / Xin Lai | DOAJ | 2024
    risks to approaching aircraft and necessitating technical methods to ensure safety to the aviation operations. This research specifically ...

    Investigating the Impact of Automated Vehicles on the Safety and Operation of Low-Speed Urban Networks

    Freier Zugriff
    Amir Hossein Karbasi / Nan Zheng / Steve O’Hern | DOAJ | 2024
    safety. While the impact of AV on traffic operations has been discussed extensively, most existing literature in this direction focuses on ...

    Numerical Investigation of Supercooled Large Droplets Impingement Characteristics of the Rotating Spinner

    Freier Zugriff
    Wei Jia / Feng Zhang | DOAJ | 2024
    impingement characteristics of the rotating spinner were investigated using FLUENT UDS and the governing equations for water droplet motion were ...

    Online Identification of Aerodynamic Parameters of Experimental Rockets Based on Unscented Kalman Filtering

    Freier Zugriff
    Xiaobin Tang / Zhenyu Jiang | DOAJ | 2024
    Online identification of aerodynamic parameters of experimental rockets was completed based on unscented Kalman filtering (UKF). Numerical ...

    ASSESSMENT OF THE TRAFFIC CONDITIONS OF FIXED-ROUTE VEHICLES IN THE AREA OF BUS STOPS

    Freier Zugriff
    Igor V. Borodulin / Olga S. Gasilova / Anastasia A. Maltseva | DOAJ | 2024
    The conditions of movement of fixed-route vehicles in the area of bus stops are analyzed. The accident rate associated with public road ...
    Schlagwörter: width of the roadway

    ADAPTATION OF VEHICLE OPERATION TO CHANGING REQUIREMENTS AND TRENDS IN THE TRANSPORT INDUSTRY

    Freier Zugriff
    Stepan V. Demyanchuk | DOAJ | 2024
    and safety of vehicular operations. These include the pivot to alternative fuel sources, the deployment of sophisticated intelligent ...

    DESIGNING OF NOISE POLLUTION MEASURES FOR A MILITARY AIRFIELD

    Freier Zugriff
    Tomáš HOIKA / Zbyšek KORECKI | DOAJ | 2024
    are changes in departure and arrival routes, the splitting of night operations into two parts and the introduction of a new article in the AIP ...
    Verlag: Silesian University of Technology

    An approach of localizing MOVES to estimate emission factors of trucks

    Freier Zugriff
    Jiashuo Lei / Chao Yang / Qingyan Fu et al. | DOAJ | 2024
    Freight has become one of the major contributors to air pollution. This research proposes a method to systematically estimate truck vehicle ...

    Identification of optimal locations of adaptive traffic signal control using heuristic methods

    Freier Zugriff
    Tanveer Ahmed / Hao Liu / Vikash V. Gayah | DOAJ | 2024
    . This study presents a bi-level optimization framework that applies heuristic methods to identify a limited set of locations for ATSC deployment ...

    An Iterative Determination Method of an Axial Deployment Force of a Lanyard-Deployed Coilable Mast in Local Coil Mode

    Freier Zugriff
    Yu Liu / Liang Sun / Hai Huang et al. | DOAJ | 2024
    The axial deployment force is an indispensable parameter of a lanyard-deployed coilable mast, which reflects its load capacity in practical ...

    Active Pointing Compensation of a HTS Multibeam Antenna

    Freier Zugriff
    Xudong Wang / Pengpeng Wang | DOAJ | 2024
    Active pointing compensation of a High Throughput Satellite (HTS) multibeam antenna via microfiber composites (MFCs) is studied in this ...

    The Channel Fading Influence of the Receiver Operating Characteristics of the TT&C Receiver Based on the Dual-Sequence Frequency Hopping

    Freier Zugriff
    Guangkai Liu / Jie Guo / Weizheng Xin et al. | DOAJ | 2024
    Aimed at the antijamming needs of the space tracking, telemetry command (TT&C) receiver under a low signal-to-noise ratio, the anti ...

    Evaluation of subgrid scale models in turbulent large eddy simulations of pumpjet propulsor

    Freier Zugriff
    Lin Ke / Jinming Ye / Wei He | DOAJ | 2024
    To assess the effectiveness of subgrid scale (SGS) models on the prediction results of unsteady loads and turbulent fluctuation of pumpjet ...

    Mechanisms for Addressing Space Debris from the Perspective of International Law

    Freier Zugriff
    Nur Barokah Uswatun Khasanah / Marc Johan Atsawin | DOAJ | 2024
    , and overall space operations. International law plays a crucial role in governing space activities and managing the growing problem of space ...

    Weapon against Civil Aircraft: Legal and Ethical Aspects of the Use of Force against Civil Aircraft

    Freier Zugriff
    Csaba Tölök | DOAJ | 2024
    Using weapons against civil aircraft is interconnected with several areas: international legal responsibility, prohibition of force, right ...
    Verlag: Faculty of Law, Universitas Lampung
    Schlagwörter: use of force

    Does the minimization of the average vehicle delay and the minimization of the average number of stops mean the same at the signalized intersections?

    Freier Zugriff
    Ziya Cakici / Goker Aksoy | DOAJ | 2024
    believed that reducing the average number of stops can also decrease the average vehicle delay. Therefore, the aim of this research is to address ...
    Schlagwörter: Average number of stops

    A state-of-the-art survey of deep learning models for automated pavement crack segmentation

    Freier Zugriff
    Hongren Gong / Liming Liu / Haimei Liang et al. | DOAJ | 2024
    Survey of road cracks in a timely, complete, and accurate way is pivotal to pavement maintenance planning. Motivated by the increasingly ...

    A numerical study on the optimization of the slit shape of a jet injection propeller

    Freier Zugriff
    Jun-Hee Lee / Ju-Han Lee / Myeong-Min Kim et al. | DOAJ | 2024
    The shape of the slit that injects the jet from the surface of the propeller was optimized through numerical computations. The high ...