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

Pore Size Distribution01:23

Pore Size Distribution

418
In concrete, the pore size distribution significantly influences the material's properties. Capillary pores, markedly larger than gel pores, form a vast network within partially hydrated cement paste, reducing the concrete's strength and increasing its permeability. This heightened permeability leads to a greater risk of damage from environmental factors like freeze-thaw cycles and chemical attacks, with the extent of vulnerability also being tied to the water-to-cement ratio.
Adequate...
418

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

Physiological Assessment of Coronary Artery Disease.

The New England journal of medicine·2026
Same author

Isosulfan blue sentinel lymph node biopsy enables reliable lymph node harvest and multicolor flow cytometry in mice.

Journal of immunological methods·2026
Same author

Physical continuity at biomaterial-ECM interfaces is associated with reduced fibroblast activation and NF-κB signaling.

Biomaterials·2026
Same author

Digital twins and digital models of the human circulatory system.

Nature reviews bioengineering·2026
Same author

Simulation-based machine learning for real-time assessment of side-branch hemodynamics in coronary bifurcation lesions.

The international journal of high performance computing applications·2026
Same author

Lipidomic signatures of CNS ischemic injury and their modulation by immunomodulatory hydrogels.

The Analyst·2026

相关实验视频

Updated: Jan 10, 2026

Three-Dimensional Particle Shape Analysis Using X-ray Computed Tomography: Experimental Procedure and Analysis Algorithms for Metal Powders
10:10

Three-Dimensional Particle Shape Analysis Using X-ray Computed Tomography: Experimental Procedure and Analysis Algorithms for Metal Powders

Published on: December 4, 2020

2.2K

在随机包装的粒子系统中,3D孔形状是可预测的.

Yasha Saxena1, Lindsay Riley1, Runxin Wu1

  • 1Department of Biomedical Engineering, Duke University, Durham, NC, 27705, USA.

Matter
|November 21, 2025
PubMed
概括

本研究使用KNN对颗粒材料中的3D孔形状进行了分类,揭示了八面体 (O) 和二面体 (I) 孔型. 这些孔状结构影响流体动力学,可以通过改变粒子特性来调整.

关键词:
随机包装 随机的包装复杂的系统复杂的系统.减少维度,减少维度.流动 流动 流动 流动颗粒状材料是颗粒状的材料.材料表征材料的表征.微观结构的微观结构孔的分类 孔的分类孔隙结构 孔隙结构形状的分类,形状的分类.

更多相关视频

Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly
10:17

Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly

Published on: November 4, 2021

3.6K
A Versatile Method of Patterning Proteins and Cells
09:57

A Versatile Method of Patterning Proteins and Cells

Published on: February 26, 2017

9.7K

相关实验视频

Last Updated: Jan 10, 2026

Three-Dimensional Particle Shape Analysis Using X-ray Computed Tomography: Experimental Procedure and Analysis Algorithms for Metal Powders
10:10

Three-Dimensional Particle Shape Analysis Using X-ray Computed Tomography: Experimental Procedure and Analysis Algorithms for Metal Powders

Published on: December 4, 2020

2.2K
Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly
10:17

Patterning of Microorganisms and Microparticles through Sequential Capillarity-assisted Assembly

Published on: November 4, 2021

3.6K
A Versatile Method of Patterning Proteins and Cells
09:57

A Versatile Method of Patterning Proteins and Cells

Published on: February 26, 2017

9.7K

科学领域:

  • 地质地质地质地质地质地
  • 材料科学 材料科学 材料科学
  • 流体动力学 流体动力学

背景情况:

  • 孔径大小不足以理解颗粒材料中的3D传输.
  • 对3D孔的几何分类对于将孔结构与材料功能联系起来至关重要.
  • 现有的方法往往忽略了详细的形状特征.

研究的目的:

  • 实施基于KNN的3D孔的分类,专注于形状属性.
  • 在随机和理想的六角包装中比较孔径几何.
  • 研究毛孔形状对流体动力学的影响以及如何控制毛孔分布.

主要方法:

  • K-最近邻居 (KNN) 算法用于孔隙分类.
  • 在随机和六角包装的颗粒系统中分析孔径几何.
  • 计算流体动力学 (CFD) 模拟以评估运输现象.
  • 对粒子特性 (形状,刚度,大小) 的参数研究,以调整孔隙分布.

主要成果:

  • 随机包装中的孔类型与理想的六角包装中的孔类型相似.
  • 八面体 (O) 和二面体 (I) 在这两种系统中都是主要的孔孔配置.
  • 在流量模拟过程中,在不同的孔隙类型之间观察到不同的流体动态行为.
  • 通过对粒子特征的修改,O/I孔隙分布是可调节的.

结论:

  • 3D毛孔形状是粒状材料行为的一个关键因素,超出了简单的尺寸.
  • 该KNN方法有效地根据形状分类毛孔,提供了对运输的洞察力.
  • 了解和控制孔径几何 (O/I分布) 可以为特定应用程序设计颗粒系统提供信息.