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

2D NMR: Overview of Homonuclear Correlation Techniques01:16

2D NMR: Overview of Homonuclear Correlation Techniques

188
Homonuclear correlation spectroscopy (COSY) is a powerful technique used in Nuclear Magnetic Resonance (NMR) spectroscopy to study the correlations between nuclei of the same type within a molecule. It provides information about scalar couplings between adjacent nuclei, which helps determine connectivity and structural information. There are several COSY variants, each with its unique strengths and experimental parameters.
COSY90 is the standard two-dimensional (2D) COSY experiment that...
188

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

Air Force Institute of Technology: introduction.

Applied optics·2025
Same author

Comparing thin and volume regimes of analog holograms for wavefront sensing.

Optics express·2024
Same author

Relationship between turbulent image variance and average image gradient.

Journal of the Optical Society of America. A, Optics, image science, and vision·2024
Same author

Propagation through and characterization of atmospheric and oceanic phenomena: introduction to the joint feature issue in Applied Optics and Journal of the Optical Society of America A.

Journal of the Optical Society of America. A, Optics, image science, and vision·2024
Same author

Quantification of surface layer turbulence using sensible heat values from energy balance versus aerodynamic methods.

Applied optics·2024
Same author

Propagation through and characterization of atmospheric and oceanic phenomena: introduction to the joint feature issue in Applied Optics and Journal of the Optical Society of America A.

Applied optics·2024

相关实验视频

Updated: Jun 24, 2025

Measurements of CO2 Fluxes at Non-Ideal Eddy Covariance Sites
09:05

Measurements of CO2 Fluxes at Non-Ideal Eddy Covariance Sites

Published on: June 24, 2019

7.9K

对声波风力计数据的2种估计方法进行比较分析.

Melissa Beason, Guy Potvin, Detlev Sprung

    Applied optics
    |June 10, 2024
    PubMed
    概括

    四种方法从声波温度估计了折射率结构参数 (Cn2). 最接近的邻居和结构函数方法准确地估计了Cn2在所有流强度上,表现优于其他.

    科学领域:

    • 大气物理大气物理学
    • 光学工程的光学工程.
    • 流的研究研究流.

    背景情况:

    • 折射率结构参数 (Cn2) 对于理解光学传播通过大气至关重要.
    • 测量风速和声波温度的超声波风力计通常用于估计Cn2.
    • 准确的Cn2估计对于适应光学,遥感和安全通信的应用至关重要.

    研究的目的:

    • 为了比较四种不同的方法的性能,用声波温度数据来估计Cn2.
    • 在不同的大气流条件下评估这些方法的准确性.
    • 根据温度波动来确定Cn2估计的适当误差条.

    主要方法:

    • 利用来自两个单独的超声波气流计在同质路径上的时间声波温度数据.
    • 我们比较了四种估计方法:贝叶斯式,功率光谱,最近邻居和结构函数.
    • 与商用闪光计和差异图像运动方法相比,经验证的结果.

    主要成果:

    • 贝叶斯和功率光谱方法为强流动提供了足够的估计,但在弱流中高估了Cn2.
    • 最接近的邻居和结构函数方法在所有测试的流强度上都表现出强的性能.
    • 考虑了Cn2的误差条,考虑了有限的流样本大小.

    更多相关视频

    Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions
    11:51

    Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions

    Published on: February 22, 2018

    8.7K
    Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing
    08:54

    Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing

    Published on: February 13, 2018

    8.6K

    相关实验视频

    Last Updated: Jun 24, 2025

    Measurements of CO2 Fluxes at Non-Ideal Eddy Covariance Sites
    09:05

    Measurements of CO2 Fluxes at Non-Ideal Eddy Covariance Sites

    Published on: June 24, 2019

    7.9K
    Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions
    11:51

    Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions

    Published on: February 22, 2018

    8.7K
    Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing
    08:54

    Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing

    Published on: February 13, 2018

    8.6K

    结论:

    • 建议使用最近的邻居和结构函数方法,以从声波温度数据中可靠地估计Cn2.
    • 方法的选择显著影响Cn2的准确性,特别是在弱流条件下.
    • 对Cn2估计的误差量化进行进一步研究是有必要的.