Results 51 to 60 of about 33,488 (251)

Automated Lightweight Model for Asthma Detection Using Respiratory and Cough Sound Signals

Diagnostics
Background and objective: Chronic respiratory diseases, such as asthma and COPD, pose significant challenges to human health and global healthcare systems. This pioneering study utilises AI analysis and modelling of cough and respiratory sound signals to
Shuting Xu, Ravinesh C. Deo, Oliver Faust, Prabal D. Barua, Jeffrey Soar, Rajendra Acharya   +5 more
doaj   +1 more source

Ionic Gating of Liquid‐Crystal‐Like Pteridine Assemblies Enables Tunable Light Scattering

Advanced Materials, EarlyView.
Tunable optical properties emerge through developmentally regulated ionic gating, which transforms disordered, ultraviolet (UV)‐absorbing organelles into concentrically ordered, liquid‐crystal‐like light scatterers. By integrating analyses of pteridine composition, potassium‐dependent assembly, hierarchical ultrastructure, and optical behavior, the ...
Sourabh Bera, Zohar Eyal, Yael Noy, Yuval Barzilay, Siddharth Sahoo, Srikant Moharana, Avi Baram, Tali Lerer‐Goldshtein, Neta Varsano, Bar Bader, Lothar Houben, Uwe Heinig, Iddo Pinkas, Moshe Goldsmith, Tamar Unger, Shira Albeck, Andrea Sorrentino, Maxim Itkin, Sergey Malitsky, Ziv Porat, Ido Hadar, Venkata Jayasurya Yallapragada, Dvir Gur   +22 more
wiley   +1 more source

Photoluminescence Reshaping via Structural Confinement and Local Density of Optical States Control in Ir(III)‐Doped Biodegradable Metasurfaces

Advanced Materials Technologies, EarlyView.
Phosphorescent biodegradable metasurface showing vibronic selection and spectral photoluminescence narrowing. Anti‐correlation between experimental LDOS and measured lifetimes. ABSTRACT Metasurfaces incorporating phosphorescent emitters offer a route to engineer radiative and vibronic processes beyond chemical design.
Vincenzo Caligiuri, Andrea Smeriglio, Svetlana Siprova, Olga Favale, Francesca Leone, Roberto Termine, Debora Policastro, Alessandra Crispini, Attilio Golemme, Nicolas Godbert, Iolinda Aiello, Antonio De Luca   +11 more
wiley   +1 more source

Classification Of Myoelectric Signal Using Spectrogram Based Window Selection [PDF]

, 2019
This paper presents a study of the classification of myoelectric signal using spectrogram with different window sizes. The electromyography (EMG) signals of 40 hand movement types are collected from 10 subjects through NinaPro database.
Abdullah, Abdul Rahim, Too, Jingwei, Mohd Ali, N, Mohd Saad, Norhashimah, Abdullah, A.R., Too, Jing Wei, Mohd Ali, Nursabillilah, Tengku Zawawi, Tengku Nor Shuhada, Tengku Zawawi, T.N.S.   +8 more
core   +2 more sources

Frequency-Hopping Signal Parameters Estimation Based on Orthogonal Matching Pursuit and Sparse Linear Regression

IEEE Access, 2018
This paper addresses the problem of estimating frequency hopping (FH) signals parameters with the single array. The existing optimization algorithms are with unrealistic computational burden.
Yu Wang, Chaozhu Zhang, Fulong Jing
doaj   +1 more source

The Development of the Temporal Measurements for Ultrashort Laser Pulses

Applied Sciences, 2020
In the past three decades, ultrafast pulse laser technology has greatly progressed and applied widely in many subjects, such as physics, chemistry, biology, materials, and so on. Accordingly, as well as for future developments, to measure or characterize
Yi Cai, Zhenkuan Chen, Xuanke Zeng, Huangcheng Shangguan, Xiaowei Lu, Qiying Song, Yuexia Ai, Shixiang Xu, Jingzhen Li   +8 more
doaj   +1 more source

Spectrogram MPC: Enforcing hard constraints on system's output spectra [PDF]

, 2012
A novel model predictive control (MPC) scheme that allows one to enforce hard constraints on the spectrum of a constrained system’s output signal is presented.
Jones, Colin, R. Gondhalekar, Gondhalekar, Ravi, Hours, Jean-Hubert, Zeilinger, Melanie Nicole, M. N. Zeilinger, C. N. Jones, J.-H Hours   +7 more
core   +2 more sources

Recent Advances in Transparent Microelectrode Device Architecture and Fabrication Strategies for Biomedical Applications

Advanced Materials Technologies, EarlyView.
Transparent microelectrode arrays enable simultaneous optical and electrical electrophysiology with high spatiotemporal resolution, allowing multimodal observations of dynamic biological systems. Advances in materials and device architectures improve device performance by addressing key trade‐offs between optical transparency, impedance, and ...
Michael Abraham Listyawan, Tran Bach Dang, Chi Cong Nguyen, Yee Lap Pong, Tianruo Guo, Thanh Nho Do, Hoang‐Phuong Phan   +6 more
wiley   +1 more source

Two-Stage Convolutional Neural Network for Classification of Movement Patterns in Tremor Patients

Information
Accurate tremor classification is crucial for effective patient management and treatment. However, clinical diagnoses are often hindered by misdiagnoses, necessitating the development of robust technical methods.
Patricia Weede, Piotr Dariusz Smietana, Gregor Kuhlenbäumer, Günther Deuschl, Gerhard Schmidt   +4 more
doaj   +1 more source

Matched Gaussian Multitaper Spectrogram

, 2013
A novel multitaper spectrogram estimator for Gaussian func- tions is proposed. The multitapers are the Hermite functions and a fixed number of few multitapers are used in the estimate.
Sandsten, Maria
core   +1 more source