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2 article(s) from Wu, Ying

GR and its application in cardiac disease detection

Yi Luo,
Jian Liu,
Jiachang Zhang,
Yu Xiao,
Ying Wu and
Zhidong Zhao

Beilstein J. Nanotechnol. 2023, 14, 819–833, doi:10.3762/bjnano.14.67

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Figure 1: Preparation process of composite piezoelectric nanofilm.

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Figure 2: Flexible sensor packaging.

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Figure 3: Actual sensor.

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Figure 4: Acoustic-electric conversion performance test platform.

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Figure 5: Block diagram of the heart sound acquisition and classification system.

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Figure 6: XRD patterns of the three composite piezoelectric nanofilms.

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Figure 7: (a) FTIR spectrum and (b) variation curve of β-phase content.

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Figure 8: (a) SEM image of the P(VDF-TrFE) film, (b) enlarged part of (a), (c) SEM image of the P(VDF-TrFE)/Z...

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Figure 9: (a–c) Voltage distribution and (d–f) stress distribution in the piezoelectric film at sound pressur...

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Figure 10: Voltage response diagram of the sensor at a sound frequency of 180 Hz and different sound pressures...

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Figure 11: Sensor response at frequencies from 0 to 2 kHz at 65 dB sound pressure.

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Figure 12: Different frequency voltage response diagram of the sensor at 65 dB sound pressure.

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Figure 13: Open-circuit voltage plot of the sensor at 65 dB sound pressure at different frequencies.

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Figure 14: (a) Piezoelectric coefficient measurement system and (b) results of the piezoelectric coefficient.

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Figure 15: Example of KNN classification algorithm.

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Figure 16: Heart sound time domain diagram before pretreatment. Figure 16 contains information from [PhysioNet/CinC Cha...

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Figure 17: Heart sound time domain diagram after pretreatment. Figure 17 contains information from [PhysioNet/CinC Chal...

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Figure 18: Wavelet packet decomposition and optimal basis selection diagram.

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Figure 19: Validation confusion matrix of heart sound classification model (fine KNN).

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Full Research Paper

Published 31 Jul 2023

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Formation of substrate-based gold nanocage chains through dealloying with nitric acid

Ziren Yan,
Ying Wu and
Junwei Di

Beilstein J. Nanotechnol. 2015, 6, 1362–1368, doi:10.3762/bjnano.6.140

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Figure 1: SEM images showing the morphology of AgNP templates before (A) and after (B) galvanic replacement u...

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Figure 2: UV–vis–NIR absorbance spectra of ITO-supported AgNPs before and after reactions with 0.1 mM HAuCl₄ ...

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Figure 3: TEM image of Ag–Au NCs prepared by galvanic replacement reactions for 2 h and removed from the subs...

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Figure 4: (A) Cyclic voltammograms of ITO-supported Ag NPs, Ag–Au NCs before and after (AuNCs) dealloying in ...

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Figure 5: SEM images of Ag–Au NCs treated with 10% H₂O₂ (A) and 10% HNO₃ (B) for 10 h at room temperature. In...

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Figure 6: SEM images of Ag–Au NCs treated with 5% (A) and 20% HNO₃ (B) for 10 h at room temperature. Inset: t...

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Full Research Paper

Published 18 Jun 2015

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