Results 41 to 50 of about 228,330 (246)

A macroscopic performance analysis of NASA’s northrop grumman RQ-4A [PDF]

, 2018
This work was partially funded by the Ministerio de Economia y Competitividad of Spain under Contract TRA2016-77012-R and by EUROCONTROL acting on behalf of the SESAR Joint Undertaking (the SJU) and the European Union as part of Work Package E in the ...
Barrado Muxí, Cristina, Cuadrado Santolaria, Raúl, Pastor Llorens, Enric, Pérez Batlle, Marcos, Royo Chic, Pablo   +4 more
core   +3 more sources

Smart Bioinspired Material‐Based Actuators: Current Challenges and Prospects

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This work gathers, in a review style, an extensive and comprehensive literature overview on the development of autonomous actuators based on synthetic materials, bringing together valuable knowledge from several studies. Furthermore, the article identifies the fundamental principles of actuation mechanisms and defines key parameters to address the size
Alejandro Palacios, Léon Chiriatti, Simon Poppinga, Thomas Speck, Vincent Le Houérou   +4 more
wiley   +1 more source

Mission Planner Algorithm for Urban Air Mobility Initial Performance Characterization [PDF]

In this paper, an initial characterization was performed of the Mission Planner algorithm developed by NASA for Urban Air Mobility (UAM) operations research.
Butler, Ricky W., Guerreiro, Nelson M., Hagen, George E., Maddalon, Jeffrey M.   +3 more
core   +1 more source

A Study on the Calculation of the FPM for the Descent Angle

Journal of the Korean Society for Aviation and Aeronautics, 2023
Kyung-Han Lee, Sung-yeob Kim, Jihun Choi
semanticscholar   +1 more source

Robust Reinforcement Learning Control Framework for a Quadrotor Unmanned Aerial Vehicle Using Critic Neural Network

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, Yefeng Yang, Tao Huang, Boyang Li   +3 more
wiley   +1 more source

A Study for Enhancing Efficiency of STAR and IAP for the Prospect of Aircraft Descent Performance and FMS Descent Guidance Information

Journal of the Korean Society for Aviation and Aeronautics, 2023
Choon-il Lee, Hyeonjin Lee, H. Baik, Jang-Kweon Park   +3 more
semanticscholar   +1 more source

Roadmap on Artificial Intelligence‐Augmented Additive Manufacturing

Advanced Intelligent Systems, EarlyView.
This Roadmap outlines the transformative role of artificial intelligence‐augmented additive manufacturing, highlighting advances in design, monitoring, and product development. By integrating tools such as generative design, computer vision, digital twins, and closed‐loop control, it presents pathways toward smart, scalable, and autonomous additive ...
Ali Zolfagharian, Liuchao Jin, Qi Ge, Wei‐Hsin Liao, Andrés Díaz Lantada, Francisco Franco Martínez, Tianyu Zhang, Tao Liu, Charlie C. L. Wang, Mohammad Hossein Mosallanejad, Reza Ghanavati, Abdollah Saboori, Alejandro De Blas De Miguel, William Solórzano‐Requejo, Yi Cai, Xiangyang Dong, Huangyi Qu, Najmeh Samadiani, Guangyan Huang, Austin Downey, Yanzhou Fu, Lang Yuan, Tsz‐Kwan (Glory) Lee, Arbind Agrahari Baniya, Eisha Waseem, Abdul Rahman Sani, Abbas Z. Kouzani, Yijia Wu, Markus P. Nemitz, Masoud Shirzad, Dageon Oh, Seung Yun Nam, Amedeo Franco Bonatti, Irene Chiesa, Gabriele Maria Fortunato, Giovanni Vozzi, Carmelo De Maria, Mahdi Bodaghi   +37 more
wiley   +1 more source

Hot air ballon deceleration and recovery system Patent [PDF]

, 1970
Development and characteristics of hot air balloon deceleration and recovery ...
Dunavant, J. C., Scher, S. H.
core   +1 more source

History and experience of overcoming thermal barriers in rocket and space technology: 2. ballistic and sliding descent of spaceships

13TH INTERNATIONAL SCIENTIFIC CONFERENCE ON AERONAUTICS, AUTOMOTIVE AND RAILWAY ENGINEERING AND TECHNOLOGIES (BulTrans-2021), 2022
S. Reznik, P. Prosuntsov
semanticscholar   +1 more source

Slip‐Adaptive Neural Control of Gecko‐Inspired Adhesive Robots

Advanced Intelligent Systems, EarlyView.
This study introduces a neural adhesion controller to improve the stability of gecko‐inspired climbing robots. By integrating an echo state network and a multilayer perceptron, the system utilizes joint torque feedback to accurately estimate adhesion in both normal and shear directions and predict slips. This enables effective recovery from slip events,
Donghao Shao, Jian Chen, Guangyuan Zang, Yang Li   +3 more
wiley   +1 more source