Results 91 to 100 of about 151,224 (313)
Journal of Applied Fluid Mechanics, 2019 This paper explores the effect of design variables on the objective functions of clipped delta wing with a modified double-wedge airfoil section based on parametric analysis and CFD-based optimization using response surface method.
M. Aelaei, S. Karimian, F. Ommi
doaj
Flight test results from a supercritical mission adaptive wing with smooth variable camber [PDF]
The mission adaptive wing (MAW) consisted of leading- and trailing-edge variable-camber surfaces that could be deflected in flight to provide a near-ideal wing camber shape for any flight condition. These surfaces featured smooth, flexible upper surfaces
Friend, Edward L. +3 more
core +1 more source
Advanced Intelligent Systems, EarlyView.Variational Autoencoder+Deep Deterministic Policy Gradient addresses low‐light failures of infrared depth sensing for indoor robot navigation. Stage 1 pretrains an attention‐enhanced Variational Autoencoder (Convolutional Block Attention Module+Feature Pyramid Network) to map dark depth frames to a well‐lit reconstruction, yielding a 128‐D latent code ...
Uiseok Lee +7 more
wiley +1 more source
Are pheromone traps applicable to forecast an insect pest phenology? A case study on codling moth
Journal of Crop Protection, 2015 Applying a precise forecasting method is necessary to achieve acceptable results in IPM programs. Performances of the wing and delta pheromone traps for forecasting the codling moth phenology were compared with physiological time data based on Degree ...
Hossein Ranjbar Aghdam
doaj
Simulation on Buffet Response and Mitigation of Variant-Tailed Aircraft in Maneuver State
VibrationThis study proposes a computational fluid dynamics and computational structure dynamics (CFD/CSD) coupled method for calculating the buffet response of a variant tail wing.
Dawei Liu +6 more
doaj +1 more source
Growth of Audouin's gull chicks: the role of prehatch and posthatch factors
Scientia Marina, 2003 We compared the growth rates of Audouin´s Gull (Larus audouinii) chicks from the Ebro Delta and Columbretes Islands. Chicks from the Columbretes Islands were reared in captivity and fed ad libitum. Wild chicks from the Ebro Delta weighed more than chicks
Elena Villuendas, Blanca Sarzo
doaj +1 more source
Advanced Intelligent Systems, EarlyView.: In this work, Voxel‐SLAM (simultaneous localization and mapping) is introduced: a complete, accurate, and versatile LiDAR (light detection and ranging) ‐inertial SLAM system consisting of five modules: initialization, odometry, local mapping (LM), loop closure (LC), and global mapping (GM), all employing the same map representation, an adaptive voxel
Zheng Liu +9 more
wiley +1 more source
Effect of Canard on the Characteristics of a 65° Delta Wing-A Preliminary Analysis of Experimental Data. [PDF]
, 1988 The experimental data available on a 65° swept-back, cropped delta wing with a canard has been analysed to study the effects of canard. Two sets of results are available : the first set is with a wing having sharp leading edges and the second set with a ...
Narayan, KY
core
Deep Reinforcement Learning Approaches for Sensor Data Collection by a Swarm of UAVs
Advanced Intelligent Systems, EarlyView.This article presents four decentralized reinforcement learning algorithms for autonomous data harvesting and investigates how collaboration improves collection efficiency. It also presents strategies to minimize training times by improving model flexibility, enabling algorithms to operate with varying number of agents and sensors.
Thiago de Souza Lamenza +2 more
wiley +1 more source
AerospaceNumerical simulations of an 80-degree delta wing in free-to-roll motion are performed by applying the dynamic fluid–body interaction (DFBI) model and the overlap/chimera method using the URANS equations.
Mohamed Sereez +3 more
doaj +1 more source