Results 41 to 50 of about 734,294 (216)
IET Microwaves, Antennas & Propagation, 2010 To determine the immediate effect of an air vehicle's manoeuvre on the radio link of aeronautical telemetry, it is needed to calculate instant angles between such an air vehicle and a receiver antenna. Having determined the communication angles of the air vehicle, the instantaneous gains from transmitter antennas can be calculated, thus evaluating the ...
S, Marzban, K, Mohamedpour
openaire +2 more sources
Sulfide‐Based Electrolytes for All‐Solid‐State Sodium Batteries
Advanced Energy Materials, EarlyView.This review covers the structural features and synthesis strategies of sulfide‐based solid electrolytes, as well as critical challenges related to conductivity, interfacial and moisture stability, and scaling‐up for practical application in Sodium‐based All Solid‐State Batteries.
Han Yang +6 more
wiley +1 more source
Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.Quadrotor unmanned aerial vehicle control is critical to maintain flight safety and efficiency, especially when facing external disturbances and model uncertainties. This article presents a robust reinforcement learning control scheme to deal with these challenges.
Yu Cai +3 more
wiley +1 more source
Energy Science &Engineering, EarlyView.Turbulence intensity from 1% to 25% was parametrically tested on a three‐bladed H‐type Darrieus rotor across five tip speed ratios (TSRs) using two‐dimensional URANS. The optimal TSR proved the most efficient and most robust operating point simultaneously, with Cp losses capped at 5.8% even at TI = 25%. ABSTRACT The effect of inlet turbulence intensity
Aydin Ulus
wiley +1 more source
In-flight Wingtip Folding: Inspiration from the XB-70 Valkyrie
International Journal of Aviation, Aeronautics, and Aerospace, 2019 Wingip folding can be used to extend aircraft wingspan, allowing designers to take advantage of reduced induced drag whilst respecting ground operational limitations.
Gaétan X Dussart +3 more
doaj +1 more source
Time-Series Prediction for Amount of Airworthiness Based on Time-Delay Neural Networks
Elektronika ir Elektrotechnika, 2020 Troposphere and the first stratum of the stratosphere are intensely utilized atmosphere layers for the aviation activities. Due to the different performances, capabilities, designs, and equipment of the aerial vehicles, meteorological weather events that
Ali Tatli +2 more
doaj +1 more source
IEEE Access, 2022 In this paper, we consider long range air-to-ground (AG) communication systems which support aeronautical platforms including unmanned aerial vehicles (UAVs) in the ultra high frequency (UHF) band. For such a system, we present the measurement based path
Jaesin Kim, Inkyu Lee
doaj +1 more source
Interface Engineering of Boron Nitride–Polymer Composites for High Thermal Conductivity
Information &Functional Materials, EarlyView.This review comprehensively discusses the impacts of interfacial design and fabrication strategies on boron nitride–polymer composites, and systematically classifies and summarizes recent advances in interfacial engineering based on the interaction modes between boron nitride fillers and polymer matrices.
Zhao Chen +4 more
wiley +1 more source
Published reports and memoranda of the aeronautical research council [PDF]
, 1958 Below is given a list of the Reports and Memoranda published by the Aeronautical Research Council The reference numbers other than the R. & M. numbers are not consecutive, as many reports are confidential to the Council and not for issue to the public ...
Aeronautical Research Council
core +3 more sources
Design and Optimization of Aircraft Configuration for Minimum Drag
International Journal of Aviation, Aeronautics, and Aerospace, 2018 This paper presents a reliable and robust optimization for minimum drag of an aircraft at the conceptual design phase. Firstly, the conceptual design code was developed and existing Single Seat Aerobatic (SSA) aircraft was chosen to validate the ...
Zin Win Thu, Aung Myo Thu, Phyo Wai Thaw
doaj +1 more source