Results 101 to 110 of about 140,103 (290)

A solid state acoustic variable time delay line Patent [PDF]

, 1971
Development and characteristics of solid state acoustic variable time delay line using direct current voltage and radio frequency ...
Fitzgerald, T. M.
core   +1 more source

Modeling an elastic beam with piezoelectric patches by including magnetic effects

, 2014
Models for piezoelectric beams using Euler-Bernoulli small displacement theory predict the dynamics of slender beams at the low frequency accurately but are insufficient for beams vibrating at high frequencies or beams with low length-to-width aspect ...
Morris, K. A., Ozer, A. O.
core   +1 more source

A Modular Bioinstructive Platform Reveals Mechanistic Insights into Additive‐Free, Topography‐Driven Osteogenesis

Advanced Healthcare Materials, EarlyView.
Engineered microparticle topographies direct human mesenchymal stem cell osteogenesis without biochemical additives. This osteogenic commitment is driven by canonical Hedgehog signaling and followed by temporal IGF‐II engagement. Two‐photon polymerization demonstrates spatial control, enabling the engineering of topographical gradients that pattern ...
Fatmah I. Ghuloum, Leo A. H. Zeef, Lee A. Stevens, Marco A. N. Domingos, Susan J. Kimber, Mahetab H. Amer   +5 more
wiley   +1 more source

Stress-strain analysis around piezoelectric material bonded to the surface of a semi-infinite plate and fundamental experiment for fracture control

Nihon Kikai Gakkai ronbunshu, 2014
Recently there are some attempts to use piezoelectric material bonded to the surface of structure component for vibrational control, fracture control and strain monitoring.
Toru SASAKI, Toshimi KONDO
doaj   +1 more source

Changes in Permittivity of the Piezoelectric Material PVDF as Functions of the Electrical Field and Temperature. [PDF]

Materials (Basel), 2021
Zhou Y, Zaghloul M.
europepmc   +1 more source

Application of piezoelectric macro-fiber-composite actuators to the suppression of noise transmission through curved glass plates

, 2012
This paper analyzes the possibility of increasing the acoustic transmission loss of sound transmitted through planar or curved glass shells using attached piezoelectric macro fiber composite (MFC) actuators shunted by active circuits with a negative ...
Mokry, Pavel, Novakova, Katerina, Vaclavik, Jan   +2 more
core   +1 more source

Real‐Time 3D Ultrasound Imaging with an Ultra‐Sparse, Low Power Architecture

Advanced Healthcare Materials, EarlyView.
This article presents a novel, ultra‐sparse ultrasound architecture that paves the way for wearable real‐time 3D imaging. By integrating a unique convolutional array with chirped data acquisition, the system achieves high‐resolution volumetric scans at a fraction of the power and hardware complexity.
Colin Marcus, Md Osman Goni Nayeem, Aastha Shah, Jason Hou, Shrihari Viswanath, Maya Eusebio, David Sadat, Anantha P. Chandrakasan, Tolga Ozmen, Canan Dagdeviren   +9 more
wiley   +1 more source

Ceramic-Based Piezoelectric Material for Energy Harvesting Using Hybrid Excitation. [PDF]

Materials (Basel), 2021
Ambrożkiewicz B, Czyż Z, Karpiński P, Stączek P, Litak G, Grabowski Ł.   +5 more
europepmc   +1 more source

Nanotherapies for Atherosclerosis: Targeting, Catalysis, and Energy Transduction

Advanced Healthcare Materials, EarlyView.
Atherosclerosis management is hindered by poor drug targeting and plaque heterogeneity. Nanotechnology overcomes these barriers via three core strategies: (1) target‐engineered nanocarriers that achieve lesion‐specific precision via ligand modification, biomimetic camouflage, stimuli‐responsive release, and self‐propelling nanomotors; (2) catalytic ...
Yuqi Yang, Jingguo Qu, Tonghuan Xiao, Xinyang Han, Michael Tin‐Cheung Ying   +4 more
wiley   +1 more source

Solid-state molecular oxygen activation using ball milling and a piezoelectric material for aerobic oxidation of thiols. [PDF]

RSC Adv, 2022
Wang G, Jia J, He Y, Wei D, Song M, Zhang L, Li G, Li H, Yuan B.   +8 more
europepmc   +1 more source