Results 51 to 60 of about 97,870 (293)

The key technologies of tiltrotor pylon conversion actuator

open access: yesHangkong gongcheng jinzhan
Tiltrotor which combines the advantages of helicopters and fixed wing aircraft,is a key direction for future aviation equipment development. The key component of tiltrotor-pylon conversion actuator is focused.
LI Hailin   +5 more
doaj   +1 more source

Improvement of system capacitance via weavable superelastic biscrolled yarn supercapacitors

open access: yesNature Communications, 2016
Carbon nanotube yarns with high loadings of pseudocapacitive material are desirable, e.g., for emerging wearable technologies. Here authors make biscrolled yarns with high loadings of MnO2nanoparticles confined in carbon nanotube galleries, demonstrating
Changsoon Choi   +6 more
doaj   +1 more source

Progressive Parkinsonism in PPP2R5D‐Related Neurodevelopmental Disorder

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT PPP2R5D‐related neurodevelopmental disorder (Houge–Janssens syndrome type 1) is a rare autosomal dominant condition characterized by macrocephaly, intellectual disability, and epilepsy. Progressive parkinsonism is an emerging adult phenotype that neurologists should be aware of since timely genetic diagnosis opens the door to disease‐modifying
Katerina Bernardi   +6 more
wiley   +1 more source

A finite element approach for the implementation of magnetostrictive material terfenol-D in automotive CNG fuel injection actuation [PDF]

open access: yes, 2008
Magnetostriction is the deformation that spontaneously occurs in ferromagnetic materials when an external magnetic field is applied. In applications broadly defined for actuation, magnetostrictive material Terfenol-D possesses intrinsic rapid response ...
Choadhury, Habibullah Amin
core   +2 more sources

Fabrication of Microglass Nozzle for Microdroplet Jetting

open access: yesAdvances in Mechanical Engineering, 2015
An ejection aperture nozzle is the essential part for all microdrop generation techniques. The diameter size, the flow channel geometry, and fluid impedance are the key factors affecting the ejection capacity.
Dan Xie   +4 more
doaj   +1 more source

Energy Efficiency of Linear Electromagnetic Actuators for Flapping Wing Micro Aerial Vehicles

open access: yesEnergies, 2020
The development of flapping wing systems has been restricted by high power density requirements, comparatively large forces and the requirement for light weight.
Blake McIvor, Javaan Chahl
doaj   +1 more source

Control Aspects of Shape Memory Alloys in Robotics Applications: A Review over the Last Decade

open access: yesSensors, 2022
This paper mainly focuses on various types of robots driven or actuated by shape memory alloy (SMA) element in the last decade which has created the potential functionality of SMA in robotics technology, that is classified and discussed.
Deivamoney Josephine Selvarani Ruth   +3 more
doaj   +1 more source

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

open access: yesInternational Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam   +2 more
wiley   +1 more source

Observer‐Based Adaptive Event‐Triggered Tracking Control for Fuzzy TS Systems With Premise Mismatch

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
This paper presents an adaptive logistic event‐triggered observer‐based tracking controller for Takagi‐Sugeno fuzzy systems under constrained inputs and network delays. Leveraging a hybrid LMI and Secretary Bird Optimization approach, this strategy significantly minimizes communication overhead and computational burden while ensuring optimal reference ...
Oussama Djadane   +3 more
wiley   +1 more source

A Novel Arch-Shaped-Magnet Variable-Flux Memory Machine

open access: yesEnergies
This paper proposes a novel arch-shaped-magnet variable-flux memory machine (ASM-VFMM). The proposed machine adopts a dual-layer permanent magnet (PM) rotor structure.
Wei Liu   +6 more
doaj   +1 more source

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