Results 31 to 40 of about 2,840,523 (248)

Heart Sound Segmentation Based on Mel-Scaled Wavelet Transform

, 2014
Paper on Heart Sound Segmentation Based on Mel-Scaled Wavelet Transform - presented at Canadian Medical and Biological Engineering Society's annual conference, 2008.
Natalie Baddour (554211)
core   +1 more source

Development of an Electronic Stethoscope and a Classification Algorithm for Cardiopulmonary Sounds

Sensors, 2022
With conventional stethoscopes, the auscultation results may vary from one doctor to another due to a decline in his/her hearing ability with age or his/her different professional training, and the problematic cardiopulmonary sound cannot be recorded for
Yu-Chi Wu, Chin-Chuan Han, Chao-Shu Chang, Fu-Lin Chang, Shi-Feng Chen, Tsu-Yi Shieh, Hsian-Min Chen, Jin-Yuan Lin   +7 more
doaj   +1 more source

Rheumatoid Arthritis, Frailty, and Outcomes of Surgical Hospitalizations: A National Population‐Based Analysis

Arthritis Care &Research, EarlyView.
Objective Hospitalization, particularly for surgery, represents a period of heightened stress. We evaluated how frailty attenuates the association of rheumatoid arthritis (RA) with negative health outcomes after elective noncardiac surgery. Methods We conducted a cross‐sectional study using the National Inpatient Sample (2018 to 2020), including adults
Ali Yazdanyar, Joshua Baker, Katherine D. Wysham, Mohammed Yousufuddin, Farah Acher Kaiksow, Michael M. Ward   +5 more
wiley   +1 more source

A framework for automatic heart sound analysis without segmentation

BioMedical Engineering OnLine, 2011
Background A new framework for heart sound analysis is proposed. One of the most difficult processes in heart sound analysis is segmentation, due to interference form murmurs.
Tungpimolrut Kanokvate, Kongprawechnon Waree, Nishihara Akinori, Yuenyong Sumeth   +3 more
doaj   +1 more source

An Edible Chitosan‐Based Acoustic Sensor for Sound‐Responsive Actuation in Edible Robots

Advanced Functional Materials, EarlyView.
This study introduces an edible acoustic sensor for robotic food and edible robotics. Built from a chitosan piezoelectric film between gold electrodes, the sensor enables acoustic communication through ON/OFF keying. Integrated into an edible robot with pneumatically actuated arms and neck, it responds to high‐frequency tones.
Valerio Francesco Annese, Bokeon Kwak, Gaia de Marzo, Giulia Coco, Valentina Antonaci, Leonardo Lamanna, Massimo De Vittorio, Dario Floreano, Mario Caironi   +8 more
wiley   +1 more source

Heart Sound Classification Using Bi⁃LSTM and Self⁃attention Mechanism

Shuju Caiji Yu Chuli
Heart sound auscultation is an effective diagnostic method for early screening of heart disease. In order to improve the performance of abnormal heart sound detection， this paper proposes a heart sound classification algorithm based on bi-directional ...
LU Guanming, LI Qijian, LU Junhe, QI Jirong, ZHAO Yuhang, WANG Yang, WEI Jinsheng   +6 more
doaj   +1 more source

Highly Efficient and Stable Roll‐to‐Roll Coated Perovskite Solar Cells Enabled by Antisolvent Vapor‐Assisted Crystallization

Advanced Functional Materials, EarlyView.
Antisolvent Vapour‐Assisted Crystallization (AVAC) enables controlled perovskite crystallization through precisely metered antisolvent vapour, eliminating liquid antisolvent waste. Compatible with roll‐to‐roll (R2R) slot‐die coating, AVAC produces uniform, pinhole‐free films with enlarged grains, delivering efficiencies of 18.3% for R2R fabricated ...
Narendra Pai, Andrew D. Scully, Yogesh Gulia, Aaron Seeber, Jueng‐Eun Kim, Luke J. Sutherland, Doojin Vak, Jacob Yin, Mark Greaves, Malisja de Vries, Mei Gao, Dechan Angmo   +11 more
wiley   +1 more source

Segmentation of Heart Sound Signals into Cycles based on Peak Intervals Pattern

, 2015
Heart sound segmentation was very important as it is one of the most important steps in heart sound analysis. This paper describes how heart sound signal is segmented into cycles based on the pattern of peak intervals.
Mohd Syazwan Md Yid, Ahmad Zubir Suboh, Mohammad Hendra Che Morad, Muhyi Yaakop, UniKL BMI   +4 more
core   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source

Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots

Advanced Robotics Research, EarlyView.
This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou, Zhiqiang Chen, Yuanbiao Ma, Zhiqiang Tang, Qianqian Wang   +4 more
wiley   +1 more source