Results 41 to 50 of about 27,166 (192)

Aeronautics lidar revisited – Towards lidar-based gust and turbulence measurement for aircraft load alleviation control [PDF]

EPJ Web of Conferences
We give an overview of the authors' and their institutions' latest R&D activities regarding Direct-Detection Doppler-Wind-Lidar (DD-DWL) for the usage as remote flow sensor on civil aircraft.
Vrancken P., Bizet L., Boulant Th., Cutipa P., Fezans N., Faccioni M., de Haan H., Jentink H., Kiehn D., Kliebisch O., Linsmayer Ph., Lombard L., Lorbeer R., Michel T., Pichon P., Pouillaude J., Pankan A. S., Thurn J., Tump R., Valla M.   +19 more
doaj   +1 more source

Double Helix Structure for Stable Flexural Actuation in Soft Robotics

Advanced Intelligent Systems, EarlyView.
This work introduces a double‐helical architecture for soft robotic actuators that enhances twisting resistance, increases output force, and minimizes undesired deformation. Actuators driven by shape‐memory alloy wires exhibit a roughly fivefold higher torsional/flexural stiffness ratio and 50% greater force output.
Louis Plottel, Richard Desatnik, Dinesh K. Patel, Philip LeDuc, Carmel Majidi   +4 more
wiley   +1 more source

H∞ robust control for gust load alleviation of geometrically nonlinear flexible aircraft [PDF]

Applied and Computational Mechanics
H Infinity robust control synthesis for gust load alleviation of very flexible aircraft is presented. The controller is synthesised on a compact reduced-order model comprising 8 degrees of freedom for the UAV configuration and 9 for the flying-wing ...
N. Tantaroudas, I. Karachalios
semanticscholar   +1 more source

Multipathway modulation of neuroinflammation and oxidative stress by hesperidin in a rat single prolonged stress model of post‐traumatic stress disorder

Animal Models and Experimental Medicine, EarlyView.
Single prolonged stress (SPS) induces post‐traumatic stress disorder (PTSD)‐like neuropathology characterized by oxidative stress, neuroinflammation, astrocytic reactivity, neuronal damage, and reduced neurotrophic support in the hippocampus, amygdala, and prefrontal cortex. Hesperidin counteracts these effects by attenuating lipid peroxidation and pro‐
Godson Emeka Anyanwu, Ogan Christopher Akanaku, Augustine Oviosun, Precious E. Ekwueme, Paul Anyiom Odey, Chima Paul Okechukwu Ugwu, Chinyere Nkemjika Anyanwu   +6 more
wiley   +1 more source

Bioconvective Unsteady Casson Hybrid Nanofluid Flow on a Variable Darcy Regime Between Two Rotating Disks With Variable Heat Source

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study carries significant consequences in various engineering applications, such as cooling rotating disk surfaces, improving chemical reactor performance, and designing filtration systems. Considering these main applications in view, the aim of this study is to investigate time‐dependent Casson hybrid nanofluid flow on a permeable ...
Ebrahem A. Algehyne, Abdul Bariq, Mounirah Areshi, Fahad Maqbul Alamrani, Zehba Raizah, Izharul Haq, Anwar Saeed   +6 more
wiley   +1 more source

Gust Load Alleviation including Geometric Nonlinearities Based on Dynamic Linearization of Structural ROM

International Journal of Aerospace Engineering, 2019
This paper describes a framework for an active control technique applied to gust load alleviation (GLA) of a flexible wing, including geometric nonlinearities.
Chao An, Chao Yang, Changchuan Xie, Yang Meng   +3 more
doaj   +1 more source

Comparing the outcomes of the technology‐enhanced learning of sectional anatomy with and without preceding demonstrations: A study about the worked‐example effect in anatomy education

Anatomical Sciences Education, EarlyView.
Abstract The examination of anatomical cross‐sections can facilitate the understanding of spatial and clinical anatomy. Visualization technologies, with dynamic and interactive displays, can be used to learn sectional anatomy in a mostly self‐directed manner.
Guilherme Reis Borges Coelho Fonseca, George Lim Tipoe, Fraide Augustin Ganotice Jr   +2 more
wiley   +1 more source

Optimization of a direct-detection UV wind lidar architecture for 3D wind reconstruction at high altitude [PDF]

Atmospheric Measurement Techniques
An architecture for a UV wind lidar dedicated to measuring vertical and lateral wind in front of an aircraft for gust load alleviation is presented. To optimize performance and robustness, it includes a fiber laser architecture and a Quadri Mach–Zehnder (
T. Boulant, T. Michel, M. Valla
doaj   +1 more source

Finalisation of the European Approach to Assess the Fire Performance of Facades—Brief Information on the Outcome of the Project

Fire and Materials, EarlyView.
ABSTRACT This research was conducted within the framework of project SI2.825082, funded by the European Commission—DG GROW. The project's objective was to finalise a European approach for assessing the fire performance of façades under medium and large fire exposure conditions.
Péter Tóth, Anja Hofmann‐Böllinghaus, Fabien Dumont, Johan Anderson, Johan Sjöström, Mikael Bergius, Roman Chiva, Octavian Lalu   +7 more
wiley   +1 more source

Borophene‐based sensing platforms: Pioneering ultrasensitive detection

FlexMat, EarlyView.
Schematic Diagram of Performance Optimization Strategies and Sensing Application Characteristics of Two‐Dimensional Boron‐Based Materials in Novel Sensors. Abstract Borophene is an emerging two‐dimensional (2D) material. Since significant breakthroughs were achieved in the experimental synthesis of borophene, the exploration and development of ...
Chi Yuan, Yanpeng Ji, Yi Liu, Guoan Tai
wiley   +1 more source