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新生儿重症监护室的声噪声解码和空间映射
Hanan Mukhaiber1, Kinana Ali2,3, Ebrahim Ismaiel4
1Department of Biomedical Engineering, Faculty of Mechanical and Electrical Engineering, Damascus University, Damascus 86, Syria. hanan.mukhaiber72@damascusuniversity.edu.sy.
Scientific reports
|September 1, 2025
概括
新生儿重症监护室 (NICU) 的噪音监测可以识别高噪音区域和活动. 这项研究使用声音传感器和机器学习来分析NICU噪音模式和识别临床事件.
科学领域:
- 新生儿医学
- 声学工程
- 数据科学
背景情况:
- 新生儿重症监护室 (NICU) 对早产婴儿造成严重的噪音污染风险,通常超过安全标准.
- 有效的实时噪声监测和缓解策略在运行中的NICU尚未建立.
研究的目的:
- 提出和探索高密度NICU实时噪声分析的框架.
- 识别NICU环境中的噪音模式,高噪音区域及其来源.
- 评估使用声学数据识别临床活动模式的可行性.
主要方法:
- 整合空间分布的声音传感器以进行全面的数据收集.
- 开发声学热图可视化,以确定噪声源和强度.
- 机器学习 (随机森林分类器) 的应用用于分类噪声事件和临床活动.
主要成果:
- 确定持续高噪音区域,特别是在化器和入口附近.
- 工作人员的移动和警报事件是导致声音水平升的主要原因,特别是在中午班.
- 一个随机森林分类器在区分临床活动模式和声学数据方面取得了85.5%的准确性.
结论:
- 拟议的框架展示了环境声音分析在NICU环境监测的潜力.
- 这种方法可以帮助识别非关键事件并了解噪声动态.
- 进一步开发可能会改善新生儿护理机构的降噪策略.
相关概念视频
01:29Assessment of Ventilation II: Respiratory Depth and Rhythm
Respiratory Depth
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
To assess respiratory depth, observe the degree of chest excursion or movement:
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
To assess respiratory depth, observe the degree of chest excursion or movement:
01:05Intensity and Pressure of Sound Waves
The intensity of sound waves can be related to displacement and pressure amplitudes by using their wave expressions and the definition of intensity. The critical step to achieve this is to write the power delivered by the particles on the wave as the product of force and velocity and simplify the force per unit area as the pressure. The velocity of the medium's particles can be derived from the displacement.
Unlike the time average of a sinusoidal term, which is zero since it is positive and...
Unlike the time average of a sinusoidal term, which is zero since it is positive and...