Results 81 to 90 of about 1,115,901 (241)

Polar Wurtzite NbAlN: A Transition‐Metal Nitride Alloy for Polarization‐Engineered GaN Heterostructures

open access: yesAdvanced Materials, EarlyView.
A novel polar wurtzite alloy, NbAlN, is demonstrated as a transition‐metal‐containing polar barrier for GaN heterostructures. Nb atoms form coherent nanoscale enrichment within the wurtzite lattice without disrupting metal polarity. This study demonstrates that transition metals can be integrated into polar nitrides to enable polarization‐related ...
Atsushi Kobayashi   +12 more
wiley   +1 more source

Development of a PDMS/ZnO/Gr piezoelectric tactile sensor and its exploration in intelligent applications [PDF]

open access: yesProceedings of the Estonian Academy of Sciences
This study investigates the preparation, performance, and intelligent applications of a composite piezoelectric sensor based on polydimethylsiloxane (PDMS), zinc oxide (ZnO) nanoparticles, and graphene (Gr).
Qinhua Hu   +7 more
doaj   +1 more source

Bioengineered Interfaces for Peripheral Nerve Sensory Restoration

open access: yesAdvanced Materials, EarlyView.
Half of amputees abandon their prosthetics for lack of feeling. This review charts the full path from peripheral nerve injury to restored sensation, through surgical, regenerative, noninvasive, and implanted approaches, and shows how injury type and interface material properties determine which strategy can deliver naturalistic feedback, and why ...
Sydney Swedick   +4 more
wiley   +1 more source

Epitaxially Integrated Electro‐Optic KNbO3 Thin Films on Silicon

open access: yesAdvanced Materials, EarlyView.
We demonstrate the first epitaxial integration of electro‐optic KNbO3 thin films on silicon using suboxide molecular‐beam epitaxy. Combining adsorption‐controlled molecular‐beam epitaxy, advanced characterization, and phase‐field modeling, we demonstrate phase‐pure crystalline films mirroring bulk crystals with robust Pockels response, enabling future ...
Sankalpa Hazra   +17 more
wiley   +1 more source

Piezoelectric Sensing of Rigid-Flexible Coupled Free-Edge Rectangular Plates

open access: yesInternational Journal of Aerospace Engineering
With the rapid development of space technology, rigid-flexible coupling systems are widely used in aerospace structures. Attitude-vibration coupling control requires a deep understanding of the rigid-flexible coupling dynamics of these systems.
Yudong Hu, Haoran Li
doaj   +1 more source

Comparative Analysis Of Accelerometer Sensor And Piezoelectric Sensor Capabilities In The Early Warning System Earthquake Disaster

open access: yesJournal of Electrical Engineering and Computer
An earthquake is a vibration or shock caused by a sudden release of energy from within the earth, which produces seismic waves. The Indonesian region is currently vulnerable to volcanic and tectonic earthquakes due to the Pacific Ring of Fire, where the ...
Yoses Manuel   +2 more
doaj   +1 more source

Soft and Transient Bioelectronics Enabled by Polymer‐Free Ti3C2Tx MXene Hydrogels

open access: yesAdvanced Materials, EarlyView.
We present Ti3C2Tx MXene hydrogel (MXgel) bioelectronics, a soft, flexible, and fully transient platform for high‐fidelity neural recording and stimulation. MXgel bioelectronics exhibit exceptional electrical conductivities, low electrochemical impedances, and high charge injection capacities.
Raghav Garg   +15 more
wiley   +1 more source

Effects of temperature on the impedance of piezoelectric actuators used for SHM [PDF]

open access: yes, 2014
— FEM modeling of piezoelectric patches used as actuators and sensors for SHM applications. — Test/analysis correlation of temperature effects in piezoelectric materials and glue — Numerical methods associated with the prediction of electric transfers ...
BALMES, Etienne   +3 more
core  

Increasing Lipid Nanoparticle mRNA Copy Number Improves Transfection Potency

open access: yesAdvanced Materials, EarlyView.
As lipid nanoparticle (LNP) systems are the leading platform for in vivo nucleic acid delivery, improving transfection potency of these systems is of considerable interest. In this work, we explored a post‐mixing formulation method involving a two‐step buffer exchange that increased the number of mRNA copies within each LNP while reducing the number of
Yao Zhang   +12 more
wiley   +1 more source

Natural frequency of beams with embedded piezoelectric sensors and actuators

open access: yes, 2007
A mathematical model is developed to study the natural frequency of beams with embedded piezoelectric sensors and actuators. The piezoelectric sensors/actuators in a non-piezoelectric matrix (host beam) are analyzed as two inhomogeneity problems by using
Della, Christian N., Shu, Dongwei
core   +1 more source

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