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相关概念视频

Mechanisms of Membrane-bending01:15

Mechanisms of Membrane-bending

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The living membranes are flexible due to their fluid mosaic nature; however, their bending into different shapes is an active process regulated by specific lipids and proteins. The membrane bending can be transient as seen in vesicles or stable for a long time as in microvilli. Cells regulate the size, location, and duration of the membrane curvature.
Membrane bending can happen due to intrinsic changes in lipid composition or extrinsic association with different proteins. The proteins involved...
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Introduction to Structures01:30

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A structure is defined as a system of interconnected members designed to support or transfer forces and successfully withstand the loads acting on them. The internal forces of a structure can be determined by decomposing the structure and analyzing the free-body diagrams of the individual members or of a combination of members. This helps in understanding the structural elements' behavior and ensuring that the structure is stable and can withstand the subjected loads.
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Machines01:19

Machines

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Machines are complex structures consisting of movable, pin-connected multi-force members that work together to transmit forces. One example of a machine is the cutting plier, which is used to cut wires by applying forces to its handles. When equal and opposite forces are exerted on the handles of the cutting plier, they cause the cutting edges to come together and apply equal and opposite reaction forces on the wire, which are greater than the applied forces.
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相关实验视频

Updated: May 7, 2026

Microfluidic Fabrication of Polymeric and Biohybrid Fibers with Predesigned Size and Shape
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Microfluidic Fabrication of Polymeric and Biohybrid Fibers with Predesigned Size and Shape

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具有可调节机械性能的结构织物

Yifan Wang1,2, Liuchi Li1, Douglas Hofmann3

  • 1Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA, USA.

Nature
|August 12, 2021
PubMed
概括
此摘要是机器生成的。

研究人员从3D粒子中开发出可调节的织物, 施加最小的压力大大增加了刚性,提供了适应性材料解决方案.

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Fabrication of Mechanically Tunable and Bioactive Metal Scaffolds for Biomedical Applications
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相关实验视频

Last Updated: May 7, 2026

Microfluidic Fabrication of Polymeric and Biohybrid Fibers with Predesigned Size and Shape
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Fabrication of Mechanically Tunable and Bioactive Metal Scaffolds for Biomedical Applications
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科学领域:

  • 材料科学
  • 机械工程
  • 物理

背景情况:

  • 结构性面料的特性源于材料和几何结构.
  • 通常,面料的特性是在制造后确定的.
  • 可调节的机械性能对于先进的应用非常理想.

研究的目的:

  • 展示具有可调节曲模量的结构性织物.
  • 调查压力下的多层连锁邮件的干扰行为.
  • 探索适应性织物的应用.

主要方法:

  • 从3D粒子制造分层链条.
  • 试验应用外部压力来诱导干扰.
  • 离散元素模拟以建模微观结构和宏观性质.

主要成果:

  • 链条表现出一个可调的曲模块.
  • 小的外部压力 (大约 93 kPa) 的硬度增加了25倍以上.
  • 观察到阻塞相位过渡,用功率定律函数描述.

结论:

  • 使用互锁的3D粒子可以实现具有可调整刚性的结构性织物.
  • 这种阻塞机制为适应性材料提供了一种新的方法.
  • 潜在的应用包括可穿戴的外骨,触觉设备和医疗支.