Results 1 to 10 of about 1,398,989 (214)

Optimizing MFCC Parameters for Breathing Phase Detection [PDF]

open access: yesSensors
Breathing phase detection is fundamental for various clinical and digital health applications, yet standard Mel Frequency Cepstral Coefficients (MFCCs) settings often limit classification performance.
Assel K. Zhantleuova   +2 more
doaj   +2 more sources

On-chip petahertz electronics for single-shot phase detection [PDF]

open access: yesNature Communications
Attosecond science has demonstrated that electrons can be controlled on the sub-cycle time scale of an optical waveform, paving the way towards optical frequency electronics.
Felix Ritzkowsky   +11 more
doaj   +2 more sources

A Review of Gait Phase Detection Algorithms for Lower Limb Prostheses. [PDF]

open access: yesSensors (Basel), 2020
Vu HTT   +6 more
europepmc   +2 more sources

A Novel Pre-Synchronization Control Method Based on Open-Loop Phase Detection for the Maritime VSC-HVDC System

open access: yesFrontiers in Energy Research, 2022
Maritime island grids based on renewable energy are being rapidly developed, which poses a new challenge to the traditional pre-synchronization process of grid connection.
Jianquan Shi   +3 more
doaj   +1 more source

Simple Design on Nanoscale Receivers Using CNT Cantilevers

open access: yesIEEE Access, 2021
To develop nanoscale sensors with future potential, a nanoscale receiver utilizing the nanomechanical vibration of a cantilever composed of a carbon nanotube, had been proposed for detecting the digital information carried by wireless signals.
Yuji Ito, Yukihiro Tadokoro
doaj   +1 more source

Phase-sensitive near field Investigation of Bloch surface wave propagation in curved waveguides [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2014
Bloch surface waves (BSWs) are electromagnetic surface waves excited in the band gap of a one dimensional dielectric photonic crystal. They are confined at the interface of two media.
Wu X.   +6 more
doaj   +1 more source

Photoacoustic viscoelasticity imaging dedicated to mechanical characterization of biological tissues [PDF]

open access: yesJournal of Innovative Optical Health Sciences, 2017
Since changes in mechanical properties of biological tissues are often closely related to pathology, the viscoelastic properties are important physical parameters for medical diagnosis.
Yujiao Shi, Fen Yang, Qian Wang
doaj   +1 more source

Assessment of Measurement-Based Phase Identification Methods

open access: yesIEEE Open Access Journal of Power and Energy, 2021
The task of determining the phase connection of customers, known as phase identification, is crucial to obtain accurate distribution system models. This paper starts with a thorough literature review of the existing phase identification methods, which ...
Francis Therrien   +2 more
doaj   +1 more source

Highly Sensitive Plasmonic Biosensors with Precise Phase Singularity Coupling on the Metastructures

open access: yesBiosensors, 2022
In this paper, we demonstrated the ability of a plasmonic metasensor to detect ultra-low refractive index changes (in the order of ∆n = 10−10 RIU), using an innovative phase-change material, vanadium dioxide (VO2), as the sensing layer.
Joelle Youssef   +6 more
doaj   +1 more source

X-Ray Phase-Contrast Image Reconstruction Based on the Chambolle-Pock Algorithm

open access: yesIEEE Access, 2021
The X-ray in-line phase-contrast imaging technique requires that the light source provides a spatially coherent X-ray beam typically generated by a microfocus X-ray tube in most laboratories. However, its small focal spot limits the lightness. An arrayed
Jianheng Huang, Xin Liu, Yaohu Lei
doaj   +1 more source

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