Results 151 to 160 of about 232,137 (308)
Aerodynamically Efficient Rotor Design for Hovering Agricultural Unmanned Helicopter
Journal of Applied Fluid Mechanics, 2017 Unmanned aerial vehicles, especially agricultural unmanned helicopters (AUH), are nowadays extensively used in precision agriculture. AUHs have recently become responsible for spraying fertilizers and pesticides for crop yields.
B. A. Haider +3 more
doaj
A comparison of theory and experiment for coupled rotor body stability of a bearingless rotor model in hover and forward flight [PDF]
Seven cases were selected for correlation from a 1/5.86 Froude-scale experiment that examined several rotor designs which were being considered for full-scale flight testing as part of the Bearingless Main Rotor (BMR) program. The model rotor hub used in
Mirick, Paul H.
core +1 more source
Epilepsia, EarlyView.Abstract Objective This study was undertaken to investigate the molecular consequences of pathogenic variants in the SMC1A gene—particularly those associated with developmental and epileptic encephalopathy (DEE85)—and to evaluate the therapeutic potential of ataluren in restoring SMC1A function and mitigating disease‐related transcriptomic and genomic ...
Maddalena Di Nardo +7 more
wiley +1 more source
Vibration Analysis of Aviation Electric Propulsion Test Stand with Active Main Rotor. [PDF]
Sensors (Basel)Kliza R +3 more
europepmc +1 more source
Energy Science &Engineering, EarlyView.A numerical model of variable‐speed pumped storage unit (VSPSU) with full‐size converter (FSC) under fast speed control strategy is established. Additionally, the correctness of the model was validated by comparing with SIMSEN simulation results and text prototype data from NARI.
Weijia Yang +5 more
wiley +1 more source
A parrot optimizer for solving multiobjective design sensor placement in helicopter main rotor blade. [PDF]
Sci RepAldawsari H.
europepmc +1 more source
Robust Control Using a Matrix Converter to Enhance Wind Turbine Systems
Energy Science &Engineering, EarlyView.This study uses a more efficient and effective solution to improve the operational performance of a wind turbine‐based power system. This system uses a doubly fed induction generator and relies on a matrix converter and fractional‐order proportional–integral controller.
Sihem Ghoudelbourk +4 more
wiley +1 more source
Acoustic measurements from a rotor blade-vortex interaction noise experiment in the German-Dutch Wind Tunnel (DNW) [PDF]
Acoustic data are presented from a 40 percent scale model of the 4-bladed BO-105 helicopter main rotor, measured in the large European aeroacoustic wind tunnel, the DNW.
Elliott, J. W. +3 more
core +1 more source
Energy Science &Engineering, EarlyView.An AI‐driven CNN–LSTM forecasting framework is integrated with HOMER Pro to optimally design a grid‐connected PV–wind–BESS microgrid for a rural school in Bangladesh, achieving 91.7% renewable penetration, low energy cost (0.0397 USD/kWh), and an 81.5% reduction in CO2 emissions. ABSTRACT Hybrid renewable microgrid planning in HOMER Pro often relies on
Robiul Khan +5 more
wiley +1 more source
Research on Tail Rotor Load Test Flight Technology for Helicopters Based on Strain Sensor Measurement. [PDF]
Sensors (Basel)Jiao S, Zheng J, Li K, Hu X.
europepmc +1 more source