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

Molecules and Compounds02:38

Molecules and Compounds

68.6K
Atoms and Molecules
68.6K
Chemical Reactions01:19

Chemical Reactions

95.6K
A chemical reaction is a process by which the bonds in the atoms of substances are rearranged to generate new substances. Matter cannot be created or destroyed in a chemical reaction—the same type and number of atoms that make up the reactants are still present in the products. Merely, the rearrangement of chemical bonds produces new compounds.
Chemical Reactions Rearrange Atoms into New Substances
A chemical reaction takes starting materials—the reactants—and changes them...
95.6K
Chemical Formulas02:52

Chemical Formulas

61.2K
A chemical formula presents information about the proportions of atoms constituting a particular chemical compound or molecule, mainly using symbols of elements and numbers. At times other symbols, such as dashes, parentheses, brackets, commas, plus, and minus signs, are also used. A chemical formula can be one of three types – molecular, empirical, and structural.
61.2K
Chemical Equations03:10

Chemical Equations

81.3K
Chemical equations represent the identities and relative quantities of substances involved in a chemical reaction. The substances undergoing reaction are called reactants, and their formulas are placed on the left side of the equation. The substances generated by the reaction are called products, and their formulas are placed on the right side of the equation. Plus signs (+) separate individual reactant and product formulas, and an arrow (→) separates the reactant and product (left and right)...
81.3K
Chemical Reactions in Aqueous Solutions03:03

Chemical Reactions in Aqueous Solutions

72.4K
Chemical substances interact in many different ways. Certain chemical reactions exhibit common patterns of reactivity. Due to the vast number of chemical reactions, it becomes necessary to classify them based on the observed patterns of interaction.
72.4K
Structural Isomerism02:34

Structural Isomerism

21.7K
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can...
21.7K

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

Next-Generation PVA-Dye Complex Film with Advanced Properties for Optical Applications.

Polymers·2026
Same author

An Environmentally-Adaptive Positioning Method Based on Integration of GPS/DTMB/FM.

Sensors (Basel, Switzerland)·2018
Same author

Evaluation of Palatal Bone Thickness for Insertion of Orthodontic Mini-Implants in Adults and Adolescents.

The Journal of craniofacial surgery·2017
Same author

Synchronized chaotic targeting and acceleration of surface chemistry in prebiotic hydrothermal microenvironments.

Proceedings of the National Academy of Sciences of the United States of America·2017

相关实验视频

Updated: Jan 31, 2026

Using In Vitro and In-cell SHAPE to Investigate Small Molecule Induced Pre-mRNA Structural Changes
11:58

Using In Vitro and In-cell SHAPE to Investigate Small Molecule Induced Pre-mRNA Structural Changes

Published on: January 30, 2019

8.8K

GraphReco:对化学分子进行概率结构识别.

Haidong Wang1, Yuncheng Yu1, Jyh-Charn Liu1

  • 1Department of Computer Science & Engineering, Texas A&M University, College Station, Texas, USA.

ChemistryOpen
|January 29, 2026
PubMed
概括

本研究引入了一种新的光学化学结构识别 (OCSR) 模型,用于将化学图像转换为机器可读数据. 该模型有效地解决了原子和键检测中的模糊性,以改善化学数据挖掘和药物发现.

科学领域:

  • 化学 化学 化学
  • 计算机科学 计算机科学
  • 生物信息学是一种生物信息学.

背景情况:

  • 化学结构信息通常通过图像传递,这些图像不是机器可读的.
  • 这种限制阻碍了化学数据挖掘和药物发现的进步.

研究的目的:

  • 开发一种新的光学化学结构识别 (OCSR) 模型.
  • 解决和解释OCSR的图形组装过程中的模糊性挑战.
  • 为了提高化学结构图像的机器可读性.

主要方法:

  • 开发了一个基于规则的概率的OCSR模型.
  • 创建了一个新的线路检测算法,用于精确的债券识别.
  • 设计了一个具有概率图的候选机制,以解决原子/键的模两可.

主要成果:

  • 拟议的OCSR模型有效地解决了图形组装中的模糊性挑战.
  • 在大型图像数据集上实现了卓越的识别准确性.
  • 性能优于现有的最先进的OCSR解决方案.

结论:

  • 开发的OCSR模型增强了将化学结构图像转换为机器可读的格式.
关键词:
马尔科夫网络是一个马尔科夫网络.化学信息学 化学信息学内容提取 内容提取视觉化学结构识别 视觉化学结构识别概率图模型的概率图模型.

更多相关视频

Sequence-specific and Selective Recognition of Double-stranded RNAs over Single-stranded RNAs by Chemically Modified Peptide Nucleic Acids
09:04

Sequence-specific and Selective Recognition of Double-stranded RNAs over Single-stranded RNAs by Chemically Modified Peptide Nucleic Acids

Published on: September 21, 2017

9.9K
The Extraction of Liver Glycogen Molecules for Glycogen Structure Determination
04:50

The Extraction of Liver Glycogen Molecules for Glycogen Structure Determination

Published on: February 8, 2022

6.6K

相关实验视频

Last Updated: Jan 31, 2026

Using In Vitro and In-cell SHAPE to Investigate Small Molecule Induced Pre-mRNA Structural Changes
11:58

Using In Vitro and In-cell SHAPE to Investigate Small Molecule Induced Pre-mRNA Structural Changes

Published on: January 30, 2019

8.8K
Sequence-specific and Selective Recognition of Double-stranded RNAs over Single-stranded RNAs by Chemically Modified Peptide Nucleic Acids
09:04

Sequence-specific and Selective Recognition of Double-stranded RNAs over Single-stranded RNAs by Chemically Modified Peptide Nucleic Acids

Published on: September 21, 2017

9.9K
The Extraction of Liver Glycogen Molecules for Glycogen Structure Determination
04:50

The Extraction of Liver Glycogen Molecules for Glycogen Structure Determination

Published on: February 8, 2022

6.6K
  • 这一进步对化学数据挖掘和药物发现有重大影响.
  • 该模型的概率方法有效地解决了基于图像的化学结构识别中的模两可.