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

Temperature Dependent Deformation01:12

Temperature Dependent Deformation

174
In a nonhomogeneous rod made up of steel and brass, restrained at both ends and subjected to a temperature change, several steps are involved in calculating the stress and compressive load. Due to the problem's static indeterminacy, one end support is disconnected, allowing the rod to experience the temperature change freely. Next, an unknown force is applied at the free end, triggering deformations in the rod's steel and brass portions. These deformations are then calculated and added...
174

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

Controlled Formation and Flowability of Clathrate Hydrate Suspensions from Frozen Emulsions.

ACS applied materials & interfaces·2026
Same author

Enhancing the Spinnability of Cellulose-Based Textile Waste by Doping with High Molecular Weight Bacterial Cellulose.

Biomacromolecules·2026
Same author

Analysis of the Flow Behavior of Mechanically Fibrillated Cellulose Nanofibril Suspension by the Rheo-Polarized Imaging Technique (Rheo-Iris).

Langmuir : the ACS journal of surfaces and colloids·2025
Same author

Rheological, electrochemical, and microstructural properties of graphene oxides as flowable electrodes for energy storage applications.

RSC advances·2025
Same author

Correction to "Shear-Thinning Nanocomposite Hydrogels for the Treatment of Hemorrhage".

ACS nano·2025
Same author

Mussel-inspired cross-linking mechanisms enhance gelation and adhesion of multifunctional mucin-derived hydrogels.

Proceedings of the National Academy of Sciences of the United States of America·2025

相关实验视频

Updated: Jul 29, 2025

Force-Clamp Rheometry for Characterizing Protein-based Hydrogels
09:55

Force-Clamp Rheometry for Characterizing Protein-based Hydrogels

Published on: August 21, 2018

7.0K

爬类风湿检查重新审视了爬类风湿检查.

Rishabh V More1, Reid Patterson2, Eugene Pashkovski2

  • 1Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA. gareth@mit.edu.

Soft matter
|May 26, 2023
PubMed
概括

这项研究使用旋转杆类风湿学量化聚合物溶液中的正常应力差异. 它表明,即使在流体下降棒时,这种方法也能准确地测量弹性,这表明复杂流体分析的应用范围更广.

科学领域:

  • 复杂液体的风病学 复杂液体的风病学
  • 聚合物物理 聚合物物理
  • 流体力学 流体力学 流体力学

背景情况:

  • 杆爬 (韦森伯格) 效应证明了聚合物流体的弹性.
  • 这种现象取决于旋转速率,流体弹性,表面张力和惯性.
  • 以前用于测量正常应力差异的方法在将实验观测与现代风力计能力相协调方面存在局限性.

研究的目的:

  • 量化调和杆登实验与现代扭力力测量仪的测量.
  • 精确测量聚合物溶液的第一个 (Ψ1,0) 和第二个 (Ψ2,0) 正常应力差系数.
  • 调查惯性效应对杆登现象的影响,并开发一种更一般的类风湿学方法.

主要方法:

  • 使用小振幅振荡剪切 (SAOS) 和稳定剪切测量进行的合并杆爬实验.
  • 解决了第二阶流体在低旋转速率极限内的运动方程.
  • 整合了惯性术语来分析流体行为,而不仅仅是简单的杆爬行.

主要成果:

  • 对聚合物溶液的量化 Ψ1,0 和 Ψ2,0 通过将杆登与商业风力计数据集成.
  • 证明了升常数 (κ = 0.5Ψ1,0 + 2Ψ2,0) 即使在流体呈现杆子下降时也可以测量.
  • 开发了一个基于弹性和惯性竞争的爬条件,准确预测棒爬或下降行为.

更多相关视频

Combining Microfluidics and Microrheology to Determine Rheological Properties of Soft Matter during Repeated Phase Transitions
11:38

Combining Microfluidics and Microrheology to Determine Rheological Properties of Soft Matter during Repeated Phase Transitions

Published on: April 19, 2018

8.0K
Macro-Rheology Characterization of Gill Raker Mucus in the Silver Carp, Hypophthalmichthys molitrix
09:13

Macro-Rheology Characterization of Gill Raker Mucus in the Silver Carp, Hypophthalmichthys molitrix

Published on: July 10, 2020

3.2K

相关实验视频

Last Updated: Jul 29, 2025

Force-Clamp Rheometry for Characterizing Protein-based Hydrogels
09:55

Force-Clamp Rheometry for Characterizing Protein-based Hydrogels

Published on: August 21, 2018

7.0K
Combining Microfluidics and Microrheology to Determine Rheological Properties of Soft Matter during Repeated Phase Transitions
11:38

Combining Microfluidics and Microrheology to Determine Rheological Properties of Soft Matter during Repeated Phase Transitions

Published on: April 19, 2018

8.0K
Macro-Rheology Characterization of Gill Raker Mucus in the Silver Carp, Hypophthalmichthys molitrix
09:13

Macro-Rheology Characterization of Gill Raker Mucus in the Silver Carp, Hypophthalmichthys molitrix

Published on: July 10, 2020

3.2K

结论:

  • 与SAOS测量相结合的旋转杆类风湿测量对于在低剪速的情况下测量复杂流体中的正常应力差异是有效的.
  • 这种方法比传统的杆登更少限制,可以更广泛地描述为"旋转杆类风湿学".
  • 这种方法为描述复杂流体提供了有价值的工具,特别是在低于商业风力计灵敏度极限的剪切速率下.