Results 91 to 100 of about 33,808 (304)

Prediction of aortic valve regurgitation after continuous-flow left ventricular assist device implantation using artificial intelligence trained on acoustic spectra. [PDF]

J Artif Organs, 2021
Misumi Y, Miyagawa S, Yoshioka D, Kainuma S, Kawamura T, Kawamura A, Maruyama Y, Ueno T, Toda K, Asanoi H, Sawa Y.   +10 more
europepmc   +1 more source

Controlling Radiative Phonons in the van der Waals Ferroelectric NbOI2

Advanced Materials, EarlyView.
Using a simple mirror geometry, this work demonstrates local‐density‐of‐optical‐states control of THz phonon emission in van der Waals ferroelectric NbOI2. By engineering the photonic environment, the phonon Q‐factor, linewidth, peak frequency, and emission intensity are reversibly tuned by over an order of magnitude, revealing radiative phonons as ...
Baolong Zhang, Ruihuan Duan, Sobhan Subhra Mishra, Thomas Tan Caiwei, Zheng Liu, Ranjan Singh   +5 more
wiley   +1 more source

Insight into the Structural and Dynamical Processes of Peptides by Means of Vibrational and Ultrasonic Relaxation Spectroscopies, Molecular Docking, and Density Functional Theory Calculations

ChemEngineering
We report a detailed investigation of the vibrational modes, structure, and dynamics of glutathione (GSH) solutions using ultrasonic relaxation spectroscopy, FT-IR vibrational spectroscopy, and electronic absorption measurements.
Afrodite Tryfon, Panagiota Siafarika, Constantine Kouderis, Angelos G. Kalampounias   +3 more
doaj   +1 more source

Intrinsically Stretchable Piezoelectric Nanocomposites for Artificial Ultrasonic Sensory Synapse

Advanced Materials, EarlyView.
Applying ultrasonic stimulations to a soft‐stretchable underwater piezoelectric sensor based on the soft‐stretchable nanocomposite from the thermal cross‐linking between the ─C─F group of P(VDF‐TrFE) and the ─NH2 group of (PEG‐diamine) with incorporating amine‐terminated BTO@APTES nanofillers on the soft PDMS substrates generated high piezoelectric ...
Trung Dieu Do, Tran Quang Trung, Priyanuj Bhuyan, Minh Chien Nguyen, Que Thi Nguyen, Namjun Jo, Yeonsu Kim, Thanh Duy Cam Ha, Myung‐Gil Kim, Sungjune Park, Woo Jong Yu, Nae‐Eung Lee   +11 more
wiley   +1 more source

Flexible Wide Bandgap Electrode System for In situ Cell Sensing and Irreversible Electroporation

Advanced Materials Interfaces, EarlyView.
The paper reports the design and wafer‐level microfabrication of a long‐lived, flexible 3C‐SiC electrode capable of sensitive and in situ cell sensing, as well as electroporation ablation. The work demonstrates a biocompatible and durable electrode platform that can perform reliable electrical interfacing with biological tissues over extended periods ...
Minh Anh Huynh, Sharda Yadav, Tuan‐Khoa Nguyen, Nam‐Trung Nguyen   +3 more
wiley   +1 more source

Estimating Lab-Quake Source Parameters: Spectral Inversion from a Calibrated Acoustic System

Sensors
Laboratory acoustic emissions (AEs) serve as small-scale analogues to earthquakes, offering fundamental insights into seismic processes. To ensure accurate physical interpretations of AEs, rigorous calibration of the acoustic system is essential. In this
Federico Pignalberi, Giacomo Mastella, Carolina Giorgetti, Marco Maria Scuderi   +3 more
doaj   +1 more source

Acoustic Investigation of the Structure of Magneto-Rheological Fluid

Communications, 2017
The acoustic spectroscopy is used to study properties and changes in structural arrangement in silicone oil based magneto-rheological fluids with carbonyl iron particles upon the effect of an external magnetic field.
Jozef Kudelcik, Peter Bury, Stefan Hardon, Michal Sedlacik, Tomas Plachy   +4 more
doaj   +1 more source

Smart and Sustainable Sizing: Investigating the Sensing Behavior of Glass Fabrics Coated With Waterborne Polyurethane/Graphene Dispersions

Advanced Materials Technologies, EarlyView.
Waterborne polyurethane/graphene formulations are developed as piezoresistive coatings on glass fabric to enable flexible strain sensing. The graphene‐enabled conductive network provides a stable electromechanical response under cyclic compression. The coating demonstrates reliable pressure‐dependent resistance changes, highlighting its potential for ...
Vishnu Vijayan Pillai, Premika Govindaraj, Sai Aditya Pradeep, Olivia Sequerth, Srikanth Pilla, Franz Konstantin Fuss, Peter Kingshott, Nishar Hameed, Nisa V Salim   +8 more
wiley   +1 more source

The monitoring of cavitation in centrifugal pumps based on the analysis of vibro-acoustic measurements [PDF]

Cavitation in centrifugal pumps causes damages to pump components and produces high levels of vibration and noise, which not only reduces pump performance but also consumes additional energy.
Gu, Fengshou, Ball, Andrew, Al Thobiani, Faisal   +2 more
core  

The measurement of the in situ compressional wave properties of marine sediments [PDF]

, 2007
Geoacoustic inversion requires a generic knowledge of the frequency-dependence of compressional wave properties in marine sediments, the nature of which is still under debate. The use of in situ probes to measure sediment acoustic properties introduces a
Dix, J.K., Best, A.I., Leighton, T.G., White, P.R., Bull, J.M., Harris, A., Robb, G.B.N.   +6 more
core