Results 71 to 80 of about 542,371 (346)

Shape‐Memory Alloy Torsion Strips for Soft Robotic Manipulation and Morphing

open access: yesAdvanced Intelligent Systems, EarlyView.
In this research, a dedicated configuration of SMA strip is proposed for soft robotic manipulation and morphing. This configuration has broad application prospects and demonstrates remarkable advantages in soft body joint operations. Mimicking invertebrates, soft robots tend to control each of their body joints to achieve the desired shape changes and ...
Changchun Wu   +6 more
wiley   +1 more source

Superconducting motors for aircraft propulsion: the Advanced Superconducting Motor Experimental Demonstrator project

open access: yesJournal of Physics: Conference Series, 2020
The European Union-funded Advanced Superconducting Motor Experimental Demonstrator (ASuMED) project started in May 2017 with the purpose of demonstrating the benefits of a new, fully superconducting motor for reaching the targets established by the ...
F. Grilli   +28 more
semanticscholar   +1 more source

Multimodal Locomotion of Soft Robots

open access: yesAdvanced Intelligent Systems, EarlyView.
This review comprehensively surveys recent advances in multimodal locomotion within soft robotics. Typical locomotion modes are summarized and categorized. Furthermore, the underlying mechanisms enabling multimodal locomotion are discussed and classified into three primary categories: active control‐based, reconfiguration‐based, and environment ...
Zihao Yuan   +4 more
wiley   +1 more source

No-Insulation High-Temperature Superconductor Winding Technique for Electrical Aircraft Propulsion

open access: yesIEEE Transactions on Transportation Electrification, 2020
High-temperature superconductor (HTS) machine is a promising candidate for the electrical aircraft propulsion due to its great advantage in high power density. However, the HTS machine always suffers the problem of low thermal stability during quench. In
Yawei Wang   +7 more
semanticscholar   +1 more source

Design Challenges to Expand the Functionality of Drones: Deformable Rotorcraft and Nature‐Inspired Flapping Drones

open access: yesAdvanced Intelligent Systems, EarlyView.
This review systematically analyzes deformable drones, including extendable, foldable, and tilting configurations, along with nature‐inspired flapping rotorcraft. By classifying deformation principles and structural mechanisms, design trade‐offs, functional capabilities, and future development potential are highlighted.
Ju‐Hee Lee   +9 more
wiley   +1 more source

Flow field and emission characterization of a novel enclosed jet-in-hot-coflow canonical burner

open access: yesApplications in Energy and Combustion Science
The jet-in-hot-coflow is a canonical combustion setup, which has been used in several studies to study Flameless/MILD combustion and auto-ignition of fuels.
Thimo van den Berg   +2 more
doaj   +1 more source

NASA Research in Aircraft Propulsion [PDF]

open access: yesVolume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; Process Industries; Technology Resources; General, 1982
This report presents a broad overview of the scope of research presently being supported by NASA in aircraft propulsion. Aircraft systems work is performed to identify the requirements for the propulsion system that enhance the mission capabilities of the aircraft.
openaire   +1 more source

System controls challenges of hypersonic combined-cycle engine powered vehicles [PDF]

open access: yes
Hypersonic aircraft with air-breathing engines have been described as the most complex and challenging air/space vehicle designs ever attempted. This is particularly true for aircraft designed to accelerate to orbital velocities.
Ianculescu, George D.   +1 more
core   +1 more source

Innovative Approach to Hydrogen Purification: A Review on the Role of Metal Hydrides

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Metal hydrides, renowned for their unique hydrogen bonding capabilities, have emerged as pivotal materials in the energy sector, particularly for hydrogen storage and purification applications. Their ability to store hydrogen reversibly under moderate conditions has positioned them at the forefront in hydrogen‐based energy systems. This review
T. Mohammed Faheem   +4 more
wiley   +1 more source

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