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

Effects of EDTA on End-Point Detection Methods01:18

Effects of EDTA on End-Point Detection Methods

660
Different methods, such as visual observance of metal-ion indicators, spectroscopic techniques, and potentiometric methods, can determine the endpoint of an EDTA titration.
In the visual method, metal-ion indicators (metallochromic dyes), which have distinct colors in their free and complex forms, are added to the mixture to signal the titration's end point. They form stable complexes with metal ions, but these complexes are weaker than the corresponding metal–EDTA complexes. As a...
660
Precipitation Titration: Endpoint Detection Methods01:19

Precipitation Titration: Endpoint Detection Methods

6.0K
In argentometric precipitation titrations, endpoints can be detected visually by the Mohr, Volhard, and Fajans methods. In the Mohr method, adding a soluble chromate indicator gives an initial yellow color to the analyte solution. As the titrant is added, the first excess of silver ions forms a red silver chromate precipitate, marking the endpoint. The solution pH should be maintained at about 8 by adding solid CaCO3.
In the Volhard method, a standard excess of AgNO3 is first added to the...
6.0K
Non-ohmic Devices00:51

Non-ohmic Devices

1.5K
In most substances, the current flow is proportional to the voltage applied to it. A simple relationship between the values of current, voltage, and resistance is known as Ohm's law. Nonohmic devices do not exhibit a linear relationship between voltage and current. One such device is the semiconducting circuit element known as a diode. A diode is a circuit device that allows current flow in only one direction.
Consider a simple circuit consisting of a battery, a diode, and a resistor. A...
1.5K
Mnemonic Devices01:23

Mnemonic Devices

423
Mnemonic devices are cognitive tools that facilitate memory retention by linking new information to familiar patterns or organizational strategies. These techniques are beneficial for remembering complex or lengthy sets of information by simplifying and structuring them in easily retrievable ways.
Acronyms
Acronyms are created by using the initial letters of a series of words to form a new word or phrase. This approach condenses complex information into a single, memorable entity. For example,...
423
Base Excision Repair01:54

Base Excision Repair

26.3K
One of the common DNA damages is the chemical alteration of single bases by alkylation, oxidation, or deamination. The altered bases cause mispairing and strand breakage during replication. This type of damage causes minimal change to the DNA double helix structure and can be repaired by the base excision repair (BER) pathways. BER corrects damaged DNA sequences by removing the damaged base and restoring the original base sequence using the complementary strand as a template.
The first step of...
26.3K
Detection of Gross Error: The Q Test01:00

Detection of Gross Error: The Q Test

7.0K
When one or more data points appear far from the rest of the data, there is a need to determine whether they are outliers and whether they should be eliminated from the data set to ensure an accurate representation of the measured value. In many cases, outliers arise from gross errors (or human errors) and do not accurately reflect the underlying phenomenon. In some cases, however, these apparent outliers reflect true phenomenological differences. In these cases, we can use statistical methods...
7.0K

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

Exploring the mediating role of bone marrow fat in the liver iron-bone density relationship: A quantitative magnetic resonance imaging study.

Osteoporosis and sarcopenia·2026
Same author

HYPER-Net: Physics-Conditioned Self-Supervised Reconstruction for Fourier Light-Field Microscopy.

bioRxiv : the preprint server for biology·2026
Same author

Cross-Cultural Adaptation and Validation of the Simplified Chinese Version of the Communication and Symbolic Behavior Scales Developmental Profile Infant-Toddler Checklist.

American journal of speech-language pathology·2026
Same author

HNMT promotes the motility-associated structures of breast cancer cells through the PI3K/Akt signaling pathway to promote tumor progression.

Histology and histopathology·2026
Same author

Enhanced corneal retention of hyaluronic acid <i>via</i> a metabolic glycoengineering-based <i>in vivo</i> bioorthogonal reaction.

Biomaterials science·2026
Same author

GBP2 promotes podocyte pyroptosis and contributes to the pathogenesis of pediatric lupus nephritis.

PloS one·2026

相关实验视频

Updated: Jan 29, 2026

Fluorescence detection methods for microfluidic droplet platforms
14:16

Fluorescence detection methods for microfluidic droplet platforms

Published on: December 10, 2011

22.8K

一种基于更快的R-CNN的简单方法,用于在微流体设备中检测细胞.

Guillaume Aubry1, Yanjun Zhao2, Erin Shappell3,4

  • 1School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive NW, Atlanta, Georgia 30332, United States.

Analytical chemistry
|January 27, 2026
PubMed
概括

本研究介绍了一种用户友好的基于快速区域的卷积神经网络 (R-CNN) 方法,用于在微流体检测中自动检测细胞. 它简化了图像标签和编码,实现了超过98%的精度,用于生物研究中高效的细胞分析.

更多相关视频

Thermal Measurement Techniques in Analytical Microfluidic Devices
08:29

Thermal Measurement Techniques in Analytical Microfluidic Devices

Published on: June 3, 2015

10.1K
Assessing Neural Stem Cell Motility Using an Agarose Gel-based Microfluidic Device
12:55

Assessing Neural Stem Cell Motility Using an Agarose Gel-based Microfluidic Device

Published on: February 11, 2008

12.2K

相关实验视频

Last Updated: Jan 29, 2026

Fluorescence detection methods for microfluidic droplet platforms
14:16

Fluorescence detection methods for microfluidic droplet platforms

Published on: December 10, 2011

22.8K
Thermal Measurement Techniques in Analytical Microfluidic Devices
08:29

Thermal Measurement Techniques in Analytical Microfluidic Devices

Published on: June 3, 2015

10.1K
Assessing Neural Stem Cell Motility Using an Agarose Gel-based Microfluidic Device
12:55

Assessing Neural Stem Cell Motility Using an Agarose Gel-based Microfluidic Device

Published on: February 11, 2008

12.2K

科学领域:

  • 微流体学 微流体学
  • 细胞生物学 细胞生物学
  • 生物图像分析 生物图像分析

背景情况:

  • 自动细胞检测对于分析各种研究领域的微流体细胞检测至关重要.
  • 传统的图像处理与微流体环境作斗争,需要先进的技术.
  • 机器学习方法提供解决方案,但往往需要广泛的数据标签和编码技能.

研究的目的:

  • 通过使用基于快速区域的卷积神经网络 (R-CNN) 在微流体阵列中检测细胞的简单方法.
  • 为了应对繁的图像标签和编码专业知识的挑战,在实施用于细胞检测的机器学习方面.
  • 提供一个准备好使用的模型和指南,用于培训更快的R-CNN,而不需要编码专业知识.

主要方法:

  • 利用基于更快区域的卷积神经网络 (R-CNN) 在微流体阵列中进行细胞检测.
  • 使用边界框作为标签,以便快速轻松地进行图像注释.
  • 开发了一个准备好使用的模型和一个非编码指南,用于训练更快的R-CNN模型.

主要成果:

  • 通过使用几百个注释,实现了平均精度超过98%的细胞检测.
  • 在不到30分钟的时间内完成模型训练,证明了高效率.
  • 通过防止错误识别微流体结构,确保准确的细胞识别.

结论:

  • 更快的R-CNN为微流体芯片中的细胞检测提供了一个精确和用户友好的解决方案.
  • 这种方法消除了对广泛编码专业知识的需求,并简化了图像标签.
  • 该方法准备在芯片上的基本生物学和药物发现试验中得到广泛应用.