Results 41 to 50 of about 4,862,994 (312)

Transcranial Acoustic Metamaterial Parameters Inverse Designed by Neural Networks

BME Frontiers, 2023
Objective: The objective of this work is to investigate the mapping relationship between transcranial ultrasound image quality and transcranial acoustic metamaterial parameters using inverse design methods.
Yuming Yang, Dong Jiang, Qiongwen Zhang, Xiaoxia Le, Tao Chen, Huilong Duan, Yinfei Zheng   +6 more
doaj   +1 more source

Optical Signature of Moiré Superlattices Formed by Twisted SrTiO3 Membranes

Advanced Functional Materials, EarlyView.
We discover optical signatures from bonded interfaces in twisted SrTiO3 moiré superlattices, including low‐frequency Raman vibrational modes and strong second‐harmonic generation, consistent with strong interlayer coupling inferred from cross‐sectional electron microscopy and ab initio calculations. ABSTRACT Moiré superlattices formed at the interfaces
T. A. M. Ragib Shahriar, Fumikazu Murakami, Xing He, Konnor Koons, Xinyan Li, Bumseop Kim, Shihan Qin, Varun Harbola, Jochen Mannhart, Yimo Han, Ruijuan Xu, Shengxi Huang, Andrew M. Rappe, Hanyu Zhu   +13 more
wiley   +1 more source

Gradient‐Conductivity Architecture Enables Synchronous Enhancement of Sensitivity and Detection Range in Multifunctional All‐Paper Sensors

Advanced Functional Materials, EarlyView.
A gradient‐engineered all‐paper sensor is fabricated by integrating MXene and in situ grown AgNPs within hierarchical cellulose networks. The device breaks the sensitivity–detection range trade‐off through cascaded conductive pathways, enabling ultrahigh pressure sensitivity, humidity–pressure decoupled dual‐mode sensing, and outstanding EMI shielding,
Ao Li, Jun Xu, Dezhong Xu, Zhaohui Zhang, Jiyi Li, Daxian Cao, Kefu Chen, Mizi Fan   +7 more
wiley   +1 more source

Detection and Analysis of Abnormal High-Current Discharge of Cylindrical Lithium-Ion Battery Based on Acoustic Characteristics Research

World Electric Vehicle Journal
The improvement of battery management systems (BMSs) requires the incorporation of advanced battery status detection technologies to facilitate early warnings of abnormal conditions.
Nan Zhou, Kunbai Wang, Xiang Shi, Zeyu Chen   +3 more
doaj   +1 more source

Advances in Solution‐Processed Textile Triboelectric Nanogenerators: Ink Formation, Processing Strategies, Applications, and Challenges

Advanced Functional Materials, EarlyView.
Advanced ink systems for solution‐processed textile triboelectric nanogenerators are systematically summarized, spanning conductive, tribo‐negative, and tribo‐positive layers. By connecting ink chemistry, deposition methods, and device function, the present review reveals the key governing principles of solution development and highlights practical ...
Xinlong Sun, Stephen Beeby
wiley   +1 more source

OPTIMIZATION OF THE ELECTRO-ACOUSTIC SPUTTERING PROCESS BY THE MICROHARDNESS CRITERION

Advanced Engineering Research, 2010
Influence of acoustic parameters (amplitude of ultrasonic oscillations A (mcm), frequency of ultrasonic oscillations (Khz), and a corner between the axis of the wave guide and the vector direction of longitudinal-twisting oscillations (degrees)) process ...
D.N. MALEYEV, W.H. AL-TIBBI, D.A. CHILIKIN   +2 more
doaj  

Enhancing SDT Efficacy of Doxorubicin‐Loaded Sonosensitizer Micelles to Overcome Resistance of Cancer Therapy by Optimizing Acoustic Parameters

Aggregate
Tumor drug resistance has been reported to be associated with drug efflux in tumor cells. Recently, a noninvasive and safe mechanism, sonodynamic therapy (SDT), has been proposed to be an oxidative stress strategy to potentially overcome drug efflux, but
Zhuoran Gong, Deshang Hou, Yunxue Xu, Mengxuan Wang, Shiyin Lin, Yingjuan Zheng, Zhifei Dai   +6 more
doaj   +1 more source

Review of Acoustic Sources Alternatives to a Dodecahedron Speaker

Applied Sciences, 2019
An omnidirectional source is required in many acoustic measurements. Commonly a dodecahedron speaker is used but due to various factors (e.g., high cost, transportation difficulties) other acoustic sources are sometimes preferred. In this review, fifteen
Nikolaos M. Papadakis, Georgios E. Stavroulakis   +1 more
doaj   +1 more source

Acoustic Parameters of Vocal Pitch [PDF]

The Journal of the Acoustical Society of America, 1963
Recent perceptual studies employing analysis of natural vowels and synthesized complex waves have suggested that spectral parameters other than fundamental frequency may be operative in pitch perception. The present study was designed to investigate the extent to which high-pitched male subjects and males with normal vocal pitch could be distinguished ...
Charles E. Speaks, Martin C. Schultz
openaire   +1 more source

Hydrogel‐Based 3D‐Printed Anthropomorphic Breast Phantom for Emulating Mechanical and Dielectric Properties of Mammary Tissue. Applications in Microwave Imaging

Advanced Functional Materials, EarlyView.
A 3D‐printable breast phantom is developed using patient‐derived MRI data and hydrogels that replicate the dielectric properties of healthy and cancerous tissues. Mechanical and dielectric characterization confirm its suitability for microwave imaging.
Carlos M. Andreu, Daniel Álvarez Sánchez‐Bayuela, Gianluigi Tiberi, Eliana Canicattì, Agostino Monorchio, Ester Vázquez   +5 more
wiley   +1 more source