Results 11 to 20 of about 1,645,820 (306)

Convolutional Neural Network Predictions for Unsteady Reynolds-Averaged Navier–Stokes-Based Numerical Simulations

open access: yesJournal of Marine Science and Engineering, 2023
The application of computational fluid dynamics (CFD) to turbulent flow has been a considerable topic of research for many years. Nonetheless, using CFD tools results in a large computational cost, which implies that, for some applications, CFD may be ...
Alvaro Abucide-Armas   +4 more
doaj   +1 more source

On the Optimal Input Rate in Queues with Batch Service

open access: yesAxioms, 2023
In recent years, queuing systems with batch service are emerging as powerful and flexible mathematical models in different frameworks. In this paper, we consider a single server queuing system with Poissonian arrivals, infinite buffers, and a constant ...
Michele Pagano   +2 more
doaj   +1 more source

Optimization of Open Queuing Networks with Batch Services

open access: yesMathematics, 2022
In this paper, open queuing networks with Poisson arrivals and single-server infinite buffer queues are considered. Unlike traditional queuing models, customers are served (with exponential service time) in batches, so that the nodes are non-work ...
Elena Stankevich   +2 more
doaj   +1 more source

Formation Control Technology of Fixed-Wing UAV Swarm Based on Distributed Ad Hoc Network

open access: yesApplied Sciences, 2022
The formation control technology of the unmanned aerial vehicle (UAV) swarm is a current research hotspot, and formation switching and formation obstacle avoidance are vital technologies.
Wenbo Suo   +4 more
doaj   +1 more source

Neural-Network Based MPC for Enhanced Lateral Stability in Electric Vehicles

open access: yesIEEE Access
Distributed electric drive vehicles offer maneuver-ability but face stability challenges under different driving conditions. Model Predictive Control (MPC) algorithms can improve lateral stability, but their high computational demands hinder real-time ...
Ahmed Hassan   +4 more
doaj   +1 more source

Adaptive Sliding Mode Control for a Robotic Manipulator with Unknown Friction and Unknown Control Direction

open access: yesApplied Sciences, 2021
This paper is aimed at addressing the tracking control issue for an n-DOF manipulator regardless of unknown friction and unknown control direction. In order to handle the above issues, an adaptive sliding mode control (ASMC) is developed with a Nussbaum ...
Seung-Hun Han   +2 more
doaj   +1 more source

HVDC Breaker Power Loss Reduction by Bridge-Type Hybrid Breakers

open access: yesEnergies, 2021
Several types of high voltage direct current (HVDC) breakers have been introduced and commercialized. Each of them has advantages and disadvantages. Among them, the hybrid HVDC breaker is highly successful.
Morteza Hesami   +4 more
doaj   +1 more source

Precise and Continuous Biomass Measurement for Plant Growth Using a Low-Cost Sensor Setup

open access: yesSensors
Continuous and accurate biomass measurement is a critical enabler for control, decision making, and optimization in modern plant production systems. It supports the development of plant growth models for advanced control strategies like model predictive ...
Lukas Munser   +5 more
doaj   +1 more source

Influence of Bubbles Causing Cavitation on Spool Oscillation of a Direct Drive Servovalve

open access: yesMicromachines, 2021
A direct drive servovalve has some inherent benefits over its conventional counterparts, but also has better reliability and output power. However, due to the rigid connection between the spool and the motor, which takes the place of interstage drive-by ...
Pengda Ren   +3 more
doaj   +1 more source

Kharitonov Theorem Based Robust Stability Analysis of a Wind Turbine Pitch Control System

open access: yesMathematics, 2020
Wind energy has recently become one of the most prominent technologies among electrical energy generation systems. As a result, wind-based renewable energy generation systems are incessantly growing, and wind turbines of different characteristics are ...
Aitor Saenz-Aguirre   +4 more
doaj   +1 more source

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