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

Mesh Analysis01:20

Mesh Analysis

1.7K
Mesh analysis is a valuable method for simplifying circuit analysis using mesh currents as key circuit variables. Unlike nodal analysis, which focuses on determining unknown voltages, mesh analysis applies Kirchhoff's voltage law (KVL) to find unknown currents within a circuit. This method is particularly convenient in reducing the number of simultaneous equations that need to be solved.
A fundamental concept in mesh analysis is the definition of meshes and mesh currents. A mesh is a closed...
1.7K
Mesh Analysis for AC Circuits01:12

Mesh Analysis for AC Circuits

821
In the domain of radio communication, the significance of impedance matching must be considered. It is crucial to ensure the efficient transmission of signals between radio transmitters and receivers. Achieving this balance involves using impedance-matching circuits, with one fundamental configuration comprising a resistor, capacitor, and inductor.
The process of harmonizing these impedances begins with a clear understanding of the input and output signals. Once these signals are known, the...
821
Network Function of a Circuit01:25

Network Function of a Circuit

1.1K
Frequency response analysis in electrical circuits provides vital insights into a circuit's behavior as the frequency of the input signal changes. The transfer function, a mathematical tool, is instrumental in understanding this behavior. It defines the relationship between phasor output and input and comes in four types: voltage gain, current gain, transfer impedance, and transfer admittance. The critical components of the transfer function are the poles and zeros.
1.1K
Bus Impedance Matrix01:24

Bus Impedance Matrix

622
Calculating subtransient fault currents for three-phase faults in an N-bus power system involves using the positive-sequence network. When a three-phase short circuit occurs at a specific bus, the analysis uses the superposition method to evaluate two separate circuits.
In the first circuit, all machine voltage sources are short-circuited, leaving only the prefault voltage source at the fault location. The positive-sequence bus impedance matrix can be determined by solving the nodal equations,...
622
Traveling Waves: Lossless Lines01:27

Traveling Waves: Lossless Lines

564
The provided content explores the behavior of traveling waves on single-phase lossless transmission lines. It begins with a single-phase two-wire lossless transmission line of length Δx, characterized by a loop inductance LH/m and a line-to-line capacitance C F/m. These parameters result in a series inductance LΔx and a shunt capacitance CΔx.
564
Bewley Lattice Diagram01:12

Bewley Lattice Diagram

1.6K
The Bewley lattice diagram, developed by L. V. Bewley, effectively organizes the reflections occurring during transmission-line transients. It visually represents how voltage waves propagate and reflect within a transmission line, making it easier to understand the complex interactions that occur.
1.6K

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

Differential COVID-19 Outcomes Across Lysosomal Disorders.

medRxiv : the preprint server for health sciences·2026
Same author

Clinical endpoints special session, ISCEV 2025, Utrecht.

Documenta ophthalmologica. Advances in ophthalmology·2026
Same author

The Cell Ontology in the age of single-cell omics.

Scientific data·2026
Same author

Population differences in wearable device wear time: Rescuing data to address biases and advance health equity.

medRxiv : the preprint server for health sciences·2026
Same author

Systematic benchmarking demonstrates large language models have not reached the diagnostic accuracy of traditional rare-disease decision support tools.

European journal of human genetics : EJHG·2026
Same author

A custom phenotypic profile for Fanconi anemia: Addressing gaps in existing disease annotations.

medRxiv : the preprint server for health sciences·2026

相关实验视频

Updated: May 5, 2026

Using the Electroretinogram to Assess Function in the Rodent Retina and the Protective Effects of Remote Limb Ischemic Preconditioning
06:34

Using the Electroretinogram to Assess Function in the Rodent Retina and the Protective Effects of Remote Limb Ischemic Preconditioning

Published on: June 9, 2015

16.4K

在电网膜学中对波形分析的实用介绍.

Yousif Shwetar1, David Lalush1, Jason McAnany2

  • 1Joint Department of Biomedical Engineering, University of North Carolina and North Carolina State University, Chapel Hill, NC, United States.

medRxiv : the preprint server for health sciences
|August 8, 2025
PubMed
概括

连续和离散波形变换 (CWT,DWT) 通过揭示时间频率模式,为电网光学 (ERG) 提供了新的见解. 这些先进的方法增强了ERG信号的分析,有助于诊断诸如先天性静止夜盲 (CSNB) 等疾病.

关键词:
诊断 诊断 诊断 诊断电网光学图 (Electroretinography) 是一种电网光学图.富里埃变换是富里埃的变换.衡量指标 衡量指标 衡量指标 衡量指标信号处理 信号处理波形变形 波形变形

更多相关视频

Simultaneous Recording of Electroretinography and Visual Evoked Potentials in Anesthetized Rats
10:30

Simultaneous Recording of Electroretinography and Visual Evoked Potentials in Anesthetized Rats

Published on: July 1, 2016

12.5K
Using Wavelet Entropy to Demonstrate how Mindfulness Practice Increases Coordination between Irregular Cerebral and Cardiac Activities
08:08

Using Wavelet Entropy to Demonstrate how Mindfulness Practice Increases Coordination between Irregular Cerebral and Cardiac Activities

Published on: May 10, 2017

14.8K

相关实验视频

Last Updated: May 5, 2026

Using the Electroretinogram to Assess Function in the Rodent Retina and the Protective Effects of Remote Limb Ischemic Preconditioning
06:34

Using the Electroretinogram to Assess Function in the Rodent Retina and the Protective Effects of Remote Limb Ischemic Preconditioning

Published on: June 9, 2015

16.4K
Simultaneous Recording of Electroretinography and Visual Evoked Potentials in Anesthetized Rats
10:30

Simultaneous Recording of Electroretinography and Visual Evoked Potentials in Anesthetized Rats

Published on: July 1, 2016

12.5K
Using Wavelet Entropy to Demonstrate how Mindfulness Practice Increases Coordination between Irregular Cerebral and Cardiac Activities
08:08

Using Wavelet Entropy to Demonstrate how Mindfulness Practice Increases Coordination between Irregular Cerebral and Cardiac Activities

Published on: May 10, 2017

14.8K

科学领域:

  • 眼科医生 眼科 眼科
  • 信号处理 信号处理
  • 生物医学工程 生物医学工程

背景情况:

  • 临床电网膜学 (ERG) 传统上依赖于时间域分析.
  • 使用传统方法捕获ERG信号的全部复杂性存在局限性.
  • 时间频率分析提供了一种更全面的方法来理解神经信号.

研究的目的:

  • 在概念上解释 ERG 分析的连续波形变换 (CWT) 和离散波形变换 (DWT).
  • 展示CWT和DWT如何发现时间频率特征,从而补充传统的ERG分析.
  • 在临床环境中提供对这些先进的信号处理技术的实际理解.

主要方法:

  • 关于CWT和DWT原理的非数学技术概述.
  • 讨论ERG.中波形变换的实施考虑因素.
  • 从一个健康的个人和一个患有CSNB的患者的标准ISCEV ERG记录的分析.

主要成果:

  • 波形分析发现了时间频率特征,这些特征在原始ERG痕迹中并不明显.
  • 与CSNB的减弱响应相比,正常的ERG显示出不同的频率响应 (带有波的~30 Hz).
  • CWT和DWT显示了正常和CSNB ERG记录之间随时间和频率的能量分布的显著差异.

结论:

  • CWT和DWT提供了对ERG信号特征的客观和互补的见解.
  • 这些方法可以帮助区分正常和病态的ERG反应.
  • 提供了一个开源的 MATLAB 工具包和教程,以促进在 ERG 研究中更广泛地采用波形分析.