Results 81 to 90 of about 1,987,184 (244)

Functional Fibers in Soft Robotics: Advances in Material, Structural, and Systemic Tactics

open access: yesAdvanced Robotics Research, EarlyView.
Fiber‐form robotic systems offer a scalable pathway toward embodied intelligence in soft robotics. This review surveys functional fibers as material, structural, and systemic elements, highlighting advances in responsive materials, architectural programing, and fabrication strategies.
Joonhee Won   +5 more
wiley   +1 more source

Double-layer Thin-film LiNbO3 Longitudinally Excited Shear Wave Resonators with Ultra-large Electromechanical Coupling Coefficient and Spurious-Free Performance [PDF]

open access: yes
This work proposes a double-layer thin-film lithium niobate (LiNbO3) longitudinally excited shear wave resonator with a theoretical electromechanical coupling coefficient exceeding 60%, RaR close to 28%, and no spurious modes.
Yu, Si-Yuan   +6 more
core   +1 more source

The effect of IPMC parameters in electromechanical coefficient based on equivalent beam theory

open access: yes, 2008
“Effective” electromechanical coupling coefficient for IPMC by equivalent bimorph beam model is studied. The collective effect of the membrane thickness and operating voltage is demonstrated by using a design of experiment of three and four levels of ...
Yusuf Menceloglu   +5 more
core   +1 more source

Phase Diagrams and Piezoelectric Properties of Wurtzite Al1−x−yScxGdyN Heterostructural Alloys

open access: yesAdvanced Science, EarlyView.
This study demonstrates ferroelectricity and piezoelectric properties improvement of quaternary wurtzite Al1−x−yScxGdyN${\rm Al}_{1-x-y}{\rm Sc}_x{\rm Gd}_y{\rm N}$ films, guided by density functional theory calculations. Wurtzite Al1−x−yScxGdyN${\rm Al}_{1-x-y}{\rm Sc}_x{\rm Gd}_y{\rm N}$ films have a high optical bandgap, enhanced piezoelectric ...
Julia L. Martin   +11 more
wiley   +1 more source

Width-Extensional Piezoelectric Ceramic Transformer

open access: yesJournal of Electrical and Electronics Engineering, 2018
Piezoelectric transformers in the shape of rectangular ceramic plate working in width-extensional mode are studied in an analytical model as well as experimentally. This vibration mode uses the higher electromechanical coupling coefficient k_31^' instead
PŮLPÁN Petr, ERHART Jiří
doaj  

High performance AlScN thin film based surface acoustic wave devices with large electromechanical coupling coefficient [PDF]

open access: yes
AlN and AlScN thin films with 27% scandium (Sc) were synthesized by DC magnetron sputtering deposition and used to fabricate surface acoustic wave (SAW) devices.
He, Xingli   +8 more
core   +1 more source

Enhanced energy harvesting of cantilevered flexoelectric micro-beam by proof mass

open access: yesAIP Advances, 2019
Proof mass can adjust the natural frequency of a cantilevered energy harvester to fit the vibration source frequency and, hence, improve energy efficiency. In this paper, a cantilevered energy harvesting model including a proof mass is presented based on
Anqing Li   +4 more
doaj   +1 more source

Magnetoelectric Nanoparticle‐Based Wireless Brain–Computer Interface: Underlying Physics and Projected Technology Pathway

open access: yesAdvanced Science, EarlyView.
Magnetoelectric nanoparticles (MENPs) enable fully wireless, minutely invasive neuromodulation, and potentially neural recording, by converting magnetic into electric and, conversely, electric into magnetic fields, respectively, at high spatiotemporal resolution.
Elric Zhang   +14 more
wiley   +1 more source

Polarization response characteristics of structure gradient MWCNTs/PDMS under vibration

open access: yesResults in Physics
Low electromechanical coupling coefficient has become the key problem restricting the application of flexible electronic components. In this paper, structure gradient MWCNTs/PDMS composites have been prepared, the electromechanical properties have been ...
Feigao Fan   +4 more
doaj   +1 more source

Improvement in the Electromechanical Properties of a Partially Diced Piezoelectric Disc Transducer

open access: yesIEEE Access, 2018
Piezoelectric discs vibrating in the thickness mode are widely used in underwater electroacoustic and electromechanical applications. It is well known and established that the first fundamental mode along the thickness of the disc determines the ...
Sairajan Sarangapani, Xiang Yan
doaj   +1 more source

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