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相关概念视频

Multiple Pipe Systems01:21

Multiple Pipe Systems

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Multipipe systems consist of complex configurations of interconnected pipes designed to transport fluids efficiently across intricate networks. They are essential in engineering applications requiring precise control over flow distribution, pressure, and head loss. They are categorized into series, parallel, loop, and network configurations, each distinguished by unique flow characteristics and applications.
Series Configuration
In a series configuration, fluid flows sequentially from one pipe...
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Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
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相关实验视频

Updated: Jan 12, 2026

Visualization of Flow Field Around a Vibrating Pipeline Within an Equilibrium Scour Hole
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在高压管道中使用超高分辨率匹配场处理的增强多泄漏检测.

Can Xu1, Muhammad Waqar2, Moez Louati3

  • 1Department of Civil and Environmental Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China; Ningbo Urban Construction Investment Group Co., Ltd., Ningbo, China.

Water research
|November 4, 2025
PubMed
概括

早期检测多个管道泄漏对于基础设施维护至关重要. 这项研究引入了一种新的声学方法,可以精确地定位和大小几个泄漏同时,即使在杂的条件下.

关键词:
有效的水资源管理.匹配的场处理处理.管道多次泄漏检测检测 管道多次泄漏检测智慧城市水务系统短暂的波是短暂的波.

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科学领域:

  • 土木工程 土木工程是指土木工程.
  • 声学 声学 在声学上
  • 信号处理 信号处理

背景情况:

  • 管道泄漏表明基础设施状况不佳,需要早期检测及时干预.
  • 现有的方法难以检测紧密间隔的泄漏集群.

研究的目的:

  • 扩展修改的宽带匹配场处理 (MB-MFP) 框架,用于在加压供水管道中检测多次泄漏.
  • 开发一种方法来同时估计多个泄漏的数量,位置和大小.

主要方法:

  • 使用高分辨率修改的宽带匹配场处理 (MB-MFP) 框架.
  • 将先进的信号处理与声学测量相结合,用于超分辨率识别.
  • 测试对各种类型的噪声 (白色,彩色,冲动) 和低信号噪声比率 (SNR低至-10dB) 的强度.

主要成果:

  • 实现超高分辨率的泄漏识别,距离距离接近最低探测波长的一半.
  • 成功证明了对多个泄漏参数 (数量,位置,大小) 的同时估计.
  • 通过广泛的数值模拟和实验室实验验证实了稳定性和有效性.

结论:

  • 拟议的MB-MFP框架为检测多个管道泄漏提供了一种新且有效的解决方案.
  • 开发的方法提供了准确和强大的多泄漏检测,即使在具有挑战性的噪音条件下.
  • 这一进步使管道退化的早期识别成为可能,并促进了积极的维护策略.