Results 11 to 20 of about 10,065,141 (353)

Terminal Traffic Situation Prediction Model under the Influence of Weather Based on Deep Learning Approaches

open access: yesAerospace, 2022
In order to quantify the degree of influence of weather on traffic situations in real time, this paper proposes a terminal traffic situation prediction model under the influence of weather (TSPM-W) based on deep learning approaches.
Ligang Yuan   +3 more
doaj   +1 more source

Nonsynchronous Rotor Blade Vibrations in Last Stage of 380 MW LP Steam Turbine at Various Condenser Pressures

open access: yesApplied Sciences, 2022
This paper presents an analysis of nonsynchronous rotor blade vibrations in the last stage of an LP steam turbine at various condenser pressures. The nonlinear least squares Levenberg–Marquardt method is used in a tip-timing analysis to determine ...
Romuald Rzadkowski   +4 more
doaj   +1 more source

A Real-Time Trajectory Prediction Method of Small-Scale Quadrotors Based on GPS Data and Neural Network

open access: yesSensors, 2020
This paper proposes a real-time trajectory prediction method for quadrotors based on a bidirectional gated recurrent unit model. Historical trajectory data of ten types of quadrotors were obtained. The bidirectional gated recurrent units were constructed
Zhao Yang   +4 more
doaj   +1 more source

Kinetics of the Binding Process of Furan Moulding Sands, Under Conditions of Forced Air Flow, Monitored by the Ultrasonic Technique [PDF]

open access: yesArchives of Foundry Engineering, 2023
The paper presents the results of research on the kinetics of the binding process of self-hardening moulding sands with an organic binder under conditions of forced air flow at various pressure values.
Natalia Matonis
doaj   +1 more source

Airport Arrival Flow Prediction considering Meteorological Factors Based on Deep-Learning Methods

open access: yesComplexity, 2020
This study presents a combined Long Short-Term Memory and Extreme Gradient Boosting (LSTM-XGBoost) method for flight arrival flow prediction at the airport. Correlation analysis is conducted between the historic arrival flow and input features.
Zhao Yang   +5 more
doaj   +1 more source

Adaptive Collision Avoidance for Multiple UAVs in Urban Environments

open access: yesDrones, 2023
The increasing number of unmanned aerial vehicles (UAVs) in low-altitude airspace is seriously threatening the safety of the urban environment. This paper proposes an adaptive collision avoidance method for multiple UAVs (mUAVs), aiming to provide a safe
Jinpeng Zhang   +5 more
doaj   +1 more source

Heat exchange modeling between the air flow and the metro ventilation shaft lining in the conditions of St. Petersburg, Russia [PDF]

open access: yesE3S Web of Conferences, 2023
Icing of the injection layer in underground tunnels and ventilation shafts leads to wear, destruction of supporting structures and flooding. In St. Petersburg the air temperature in winter can drop to -25 ° C, what can lead to these phenomena in the ...
Kozin Evgeny, Kozhukhov Yuri
doaj   +1 more source

New testing device for air permeability

open access: yesCommunications in Development and Assembling of Textile Products, 2023
Air permeability is used to characterize textile fabrics with respect to their usability as a garment or filter, airbag or parachute. It depends on the fabric’s porosity, air voids in the fabric, yarn specifications, thickness and other parameters ...
Lilia Sabantina, Andrea Ehrmann
doaj   +1 more source

Modeling Congestion Propagation in Multistage Schedule within an Airport Network

open access: yesJournal of Advanced Transportation, 2018
In order to alleviate flight delay it is important to understand how air traffic congestion evolves or propagates. In this context, this paper focusses on the aggravation of airport congestion by the accumulation of delayed departure flights. We start by
Xiaoxu Dai   +3 more
doaj   +1 more source

Probabilistic En Route Sector Traffic Demand Prediction Based upon Statistical Analysis of Error Distribution Characteristics

open access: yesJournal of Advanced Transportation, 2018
In China, air traffic congestion has become increasingly prominent and tends to spread from terminal areas to en route networks. Accurate and objective traffic demand prediction could alleviate congestion effectively. However, the usual demand prediction
Wen Tian   +4 more
doaj   +1 more source

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