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Updated: Jun 26, 2026

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在患有行为性听障症的妇女中进行光谱和塞普斯特测量

Gabriela Marques Paiva1, Priscila Oliveira Costa Silva1, Layla Jamilly Andrade da Silva1

  • 1Universidade Federal da Paraíba - UFPB - João Pessoa (PB), Brasil.

CoDAS
|November 16, 2023
PubMed
概括

声学指标,如塞普斯特拉峰突出度 (CPP) 和H1-H2,在有声结节和没有声结节的行为失声症妇女之间有所不同. 这些测量与语音质量认知相关,有助于评估语音障碍.

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IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations01:08

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Identical bonds within a polyatomic group can stretch symmetrically (in-phase) or asymmetrically (out-of-phase). Similar to hydrogen bonding, these vibrations also influence the shape of the IR peak. Generally, asymmetric stretching frequencies are higher than symmetric stretching frequencies. For example, primary amines exhibit two distinct IR peaks between 3300–3500 cm−1 corresponding to the symmetric and asymmetric N-H stretching, while secondary amines exhibit a single stretching vibration...