Results 61 to 70 of about 96,556 (286)

From Clinic to Computation: Multiscale Bioengineering Strategies for Durable Biological Aortic Valve Replacements

Advanced Functional Materials, EarlyView.
Bioprosthetic aortic valves have revolutionized the treatment of aortic stenosis, but their durability is limited by structural valve deterioration (SVD). This review focuses on the pericardial tissue at the heart of these valves, examining how its mechanical properties and calcification drive fatigue and failure.
Gabriele Greco, Pierfrancesco Gaziano, Serena Anglese, Simone Morganti, Carlo de Vincentiis, Ferdinando Auricchio, Michele Marino, Michele Conti   +7 more
wiley   +1 more source

Modification of Olive Leaves’ Surface by Ultrasound Cavitation. Correlation with Polyphenol Extraction Enhancement

Applied Sciences, 2020
We investigated the impact of ultrasound at 20 kHz on olive leaves to understand how acoustic cavitation could increase polyphenol extraction. Application of ultrasound to whole leaf from 5 to 60 min enabled us to increase extraction from 6.96 to 48.75 ...
Natacha Rombaut, Tony Chave, Sergey I. Nikitenko, Mohamed EI Maâtaoui, Anne Sylvie Fabiano-Tixier, Farid Chemat   +5 more
doaj   +1 more source

Deep and optically resolved imaging through scattering media by space-reversed propagation

, 2012
We propose a novel technique of microscopy to overcome the effects of both scattering and limitation of the accessible depth due to the objective working distance.
De Chatellus, Hugues Guillet, Glastre, Wilfried, Hugon, Olivier, Jacquin, Olivier, Lacot, Eric   +4 more
core   +2 more sources

The Cuttlebone Blueprint for Multifunctional Metamaterials: Design Taxonomy, Functional Decoupling, and Future Horizons

Advanced Functional Materials, EarlyView.
Cuttlebone‐inspired metamaterials exploit a septum‐wall architecture to achieve excellent mechanical and functional properties. This review classifies existing designs into direct biomimetic, honeycomb‐type, and strut‐type architectures, summarizes governing design principles, and presents a decoupled design framework for interpreting multiphysical ...
Xinwei Li, Zhendong Li
wiley   +1 more source

Ultrasound Microscopy-Based Identification of Enamel and Restorative Materials: An Ex Vivo Acoustic Impedance Study

International Dental Journal
Introduction and aims: Differentiating restorative materials from enamel during dental examinations is challenging because of their similar appearances.
Yukihiro Naganuma, Masatoshi Takahashi, Yoshifumi Saijo, Masahiro Iikubo, Atsushi Takahashi   +4 more
doaj   +1 more source

Developing the knowledge-based human resources that support the implementation of the National Dual Training System (NDTS): evaluation of TVET teacher's competency at MARA Training Institutions [PDF]

, 2015
Development in the world of technical and vocational education and training (TVET) on an ongoing basis is a challenge to the profession of the TVET-teachers to maintain their performance.
Ali, Mahazani
core   +1 more source

Multi‐Scale Interface Engineering of MXenes for Multifunctional Sensory Systems

Advanced Functional Materials, EarlyView.
MXenes, as two‐dimensional transition metal carbides and nitrides, demonstrate remarkable capabilities for multifunctional sensing applications. This review systematically examines multi‐scale interface engineering approaches that enhance sensing performance, enable diverse detection functionalities, and improve system‐level compatibility in MXene ...
Jiaying Liao, Sin‐Yi Pang, Jianhua Hao
wiley   +1 more source

Optoelectronic Control of Redox Dynamics in POM Memristors for Noise‐Resilient Speech and Hardware‐Level Motion Recognition

Advanced Functional Materials, EarlyView.
Optoelectronic control of redox‐active polyoxometalate clusters in polymer matrices yields hybrid memristors with switchable volatile and non‐volatile modes, enabling reservoir‐type in‐sensor optical preprocessing and stable multilevel synapses for multimodal neuromorphic computing, including noise‐tolerant audiovisual keyword recognition and hardware ...
Xiangyu Ma, Ziyu Lv, Guohua Zhang, Zhongyue Xu, Yongbiao Zhai, Haiming Huang, Qiyan Zhang, Xiaojin Zhao, Yan Wang, Ye Zhou, Ziyu Xiong, Guanglong Ding, Wentao Xu, Su‐Ting Han   +13 more
wiley   +1 more source

Biopsy Needle Integrated with Rotational Oblique Spectral Ultrasound (ROSUS) Imaging

Sensors
Biopsy procedures are essential for definitive cancer diagnosis but remain limited by the risk of accidental blood vessel puncture, which can lead to hemorrhage and procedural failure.
Benjamin C. Kreager, Wei-Yi Chang, Jian Tian, Huaiyu Wu, Xiaoning Jiang   +4 more
doaj   +1 more source

Correlation between Surface Tension, Work of Adhesion in Liquid Metals/Ceramic Systems, and Acoustic Parameters

Успехи физики металлов, 2018
In the paper, a correlation between acoustic velocities, elastic moduli, and densities, with surface tension, and work of adhesion of different liquid metals on a given ceramic is studied and demonstrated.
Z. Hadef, A. Doghmane, K. Kamli, Z. Hadjoub
doaj   +1 more source