Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Cable Subjected to Concentrated Loads01:28

Cable Subjected to Concentrated Loads

870
Flexible cables are commonly used in various applications for support and load transmission. Consider a cable fixed at two points and subjected to multiple vertically concentrated loads. Determine the shape of the cable and the tension in each portion of the cable, given the horizontal distances between the loads and supports.
870
Cable Subjected to Its Own Weight01:13

Cable Subjected to Its Own Weight

482
Overhead power transmission lines rely on cables to carry electricity across large distances. To ensure the stability and functionality of these lines, it is crucial to understand the shape and tension experienced by the cables under the influence of their weight.
A generalized loading function is employed to analyze a cable subjected to its own weight. This function considers the force acting along the cable's arc length rather than its projected length, providing a more accurate...
482
Lumber Defects01:23

Lumber Defects

149
Lumber defects, which can affect both the appearance and structural integrity of wood, include a variety of growth and manufacturing flaws. Growth defects such as knots and knotholes occur where branches were once attached to the tree trunk, with knotholes forming when these knots fall out. Other natural defects include decay and insect damage, which compromise the wood's strength and durability.
Shakes are minor fractures that run along or across the wood's annual rings, while wane is...
149
Energy Stored In A Coaxial Cable01:31

Energy Stored In A Coaxial Cable

1.6K
A coaxial cable consists of a central copper conductor used for transmitting signals, followed by an insulator shield, a metallic braided mesh that prevents signal interference, and a plastic layer that encases the entire assembly.
In the simplest form, a coaxial cable can be represented by two long hollow concentric cylinders in which the current flows in opposite directions. The magnetic field inside and outside the coaxial cable is determined by using Ampère's law. The magnetic...
1.6K
Cable Subjected to a Distributed Load01:24

Cable Subjected to a Distributed Load

723
The analysis of suspension bridges is a complex and critical process that involves multiple factors, including the shape and tension of the main cables. The main cables of suspension bridges are subjected to distributed loads, which result in changes in tensile forces and deformation of the cable. These loads must be carefully considered to ensure that the bridge is safe and capable of supporting the weight of different loads.
723
Cable: Problem Solving01:29

Cable: Problem Solving

348
When dealing with a cable that is fixed to two supports and subjected to uniform loading, it is crucial to determine the maximum tension in the cable. This process can be broken down into several key steps, as outlined below:
348

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

[ATM/H2AX and repair of sperm-DNA damage during cryopreservation].

Zhonghua nan ke xue = National journal of andrology·2011
Same author

Predicting accident frequency at their severity levels and its application in site ranking using a two-stage mixed multivariate model.

Accident; analysis and prevention·2011
Same author

Photothermally enhanced photodynamic therapy delivered by nano-graphene oxide.

ACS nano·2011
Same author

[Characteristics of soil respiration in Phyllostachys edulis forest in Wanmulin Natural Reserve and related affecting factors].

Ying yong sheng tai xue bao = The journal of applied ecology·2011
Same author

Quality changes in sea urchin (Strongylocentrotus nudus) during storage in artificial seawater saturated with oxygen, nitrogen and air.

Journal of the science of food and agriculture·2011
Same author

Global effect of an RNA polymerase β-subunit mutation on gene expression in the radiation-resistant bacterium Deinococcus radiodurans.

Science China. Life sciences·2011

相关实验视频

Updated: Jul 19, 2025

Design, Instrumentation and Usage Protocols for Distributed In Situ Thermal Hot Spots Monitoring in Electric Coils using FBG Sensor Multiplexing
10:52

Design, Instrumentation and Usage Protocols for Distributed In Situ Thermal Hot Spots Monitoring in Electric Coils using FBG Sensor Multiplexing

Published on: March 8, 2020

5.9K

基于深森林的飞机电缆绝缘层的缺陷检测和识别.

Qiuyu Wang1, Mingkun Huang2, Xiaocen Wang3

  • 1College of Electronic Information and Automation, Tianjin University of Science and Technology, 1038 Dagunan Road, Tianjin 300222, PR China; School of Electrical and Automation Engineering, Tianjin University, Tianjin 300072, PR China.

Ultrasonics
|August 9, 2023
PubMed
概括

这项研究引入了一种超声波引导波 (UGW) 系统,使用灵活的传感器来检测飞机电缆绝缘缺陷. 一种新的深森林方法在分类四种缺陷类型中实现了100%的准确性,提高了飞机的安全性.

关键词:
飞机电缆是飞机的电缆.森林深处的森林深处的森林.缺陷检测 检测缺陷检测 检测缺陷检测绝缘层是一种绝缘层.其他UGWs.

更多相关视频

Subsurface Defect Localization by Structured Heating Using Laser Projected Photothermal Thermography
11:34

Subsurface Defect Localization by Structured Heating Using Laser Projected Photothermal Thermography

Published on: May 15, 2017

11.2K
Manufacturing Simple and Inexpensive Soil Surface Temperature and Gravimetric Water Content Sensors
08:49

Manufacturing Simple and Inexpensive Soil Surface Temperature and Gravimetric Water Content Sensors

Published on: December 21, 2019

9.4K

相关实验视频

Last Updated: Jul 19, 2025

Design, Instrumentation and Usage Protocols for Distributed In Situ Thermal Hot Spots Monitoring in Electric Coils using FBG Sensor Multiplexing
10:52

Design, Instrumentation and Usage Protocols for Distributed In Situ Thermal Hot Spots Monitoring in Electric Coils using FBG Sensor Multiplexing

Published on: March 8, 2020

5.9K
Subsurface Defect Localization by Structured Heating Using Laser Projected Photothermal Thermography
11:34

Subsurface Defect Localization by Structured Heating Using Laser Projected Photothermal Thermography

Published on: May 15, 2017

11.2K
Manufacturing Simple and Inexpensive Soil Surface Temperature and Gravimetric Water Content Sensors
08:49

Manufacturing Simple and Inexpensive Soil Surface Temperature and Gravimetric Water Content Sensors

Published on: December 21, 2019

9.4K

科学领域:

  • 航空航天工程 航空航天工程
  • 材料科学 材料科学 材料科学
  • 非破坏性测试 不破坏性测试

背景情况:

  • 飞机电缆绝缘缺陷是一个关键的安全问题,可能导致严重事故和经济损失.
  • 现有的检测方法可能不足以应对飞机环境中的独特挑战.

研究的目的:

  • 开发和验证一种用于检测和分类飞机电缆绝缘缺陷的新系统.
  • 为了解决区分相似的缺陷类型的挑战.

主要方法:

  • 使用超声波引导波 (UGWs) 实现飞机电缆绝缘缺陷检测系统.
  • 使用宏纤维复合材料 (MFC) 柔性传感器,以实现与电缆绝缘的最佳合.
  • 应用深层森林分类方法来分析UGW反射信号.

主要成果:

  • 在不同的位置,UGW系统成功检测出四种不同类型的绝缘缺陷 (磨损,切割,半脱落,全脱落).
  • 深度森林方法在分类这些缺陷类型方面实现了100%的准确性,超过了传统的深度学习方法.
  • 该系统在在线监控和准确的缺陷分类方面表现出有效性.

结论:

  • 使用MFC传感器和深森林分类开发的UGW系统为飞机电缆绝缘缺陷监测提供了强大的解决方案.
  • 该方法提供了准确和有效的缺陷识别,对于及时维护飞机和安全至关重要.
  • 该方法克服了传统方法的局限性,需要更小的样本大小和更少的参数调整.