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

Two-Dimensional Force System01:20

Two-Dimensional Force System

1.8K
A two-dimensional system in mechanical engineering involves the analysis of motion and forces in a plane. A two-dimensional force vector can be resolved into its components as:
1.8K
Two-Dimensional Force System: Problem Solving01:29

Two-Dimensional Force System: Problem Solving

1.5K
Solving problems related to two-dimensional force systems is an essential aspect of mechanics and engineering. By applying the principles of vector analysis and force equilibrium, one can determine the effect of multiple forces acting on an object in a two-dimensional space.
The first step to solving a two-dimensional force system problem is to draw a free-body diagram of the object under consideration. This diagram helps identify all the external forces acting on the object, including their...
1.5K
Zero-Force Member01:30

Zero-Force Member

2.6K
A truss is a framework that comprises slender members connected at their ends by joints. Trusses are widely used in engineering and architecture to stabilize and strengthen structures like bridges, roofs, and towers. Truss members are designed to carry loads through tension and compression, enabling the truss to withstand external forces.
One critical concept in truss design is the idea of zero-force members. It refers to a truss member that experiences no stress under loading conditions.
2.6K
Design Consideration01:22

Design Consideration

640
Designing a structure involves a series of considerations, primarily the material's ultimate strength, calculated through tests that measure changes under increased force until the material reaches its breaking point or limit. The ultimate load, where the material breaks, is divided by its original cross-sectional area, resulting in the ultimate normal stress or strength. The ultimate shearing stress is another significant factor taken into account.
The factor of safety is another key...
640
Properties of the z-Transform I01:17

Properties of the z-Transform I

744
The z-transform is a fundamental tool in digital signal processing, enabling the analysis of discrete-time systems through its various properties. It is an invaluable tool for analyzing discrete-time systems, offering a range of properties that simplify complex signal manipulations. One fundamental property is linearity. For any two discrete-time signals, the z-transform of their linear combination equals the same linear combination of their individual z-transforms. This property is essential...
744
Properties of the z-Transform II01:16

Properties of the z-Transform II

507
The property of Accumulation in signal processing is derived by analyzing the accumulated sum of a discrete-time signal and using the time-shifting property to determine its z-transform. This principle reveals that the z-transform of the summed signal is related to the z-transform of the original signal by a multiplicative factor.
Moreover, the convolution property indicates that the convolution of two signals in the time domain corresponds to the product of their z-transforms in the frequency...
507

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

Design framework for programmable three-dimensional woven metamaterials.

Nature communications·2026
Same author

Double-network-inspired mechanical metamaterials.

Nature materials·2025
Same author

3D nanoprinting of PDMS microvessels with tailored tortuosity and microporosity <i>via</i> direct laser writing.

Lab on a chip·2025
Same author

Bridging hard and soft: Mechanical metamaterials enable rigid torque transmission in soft robots.

Science robotics·2025
Same author

Foams with 3D Spatially Programmed Mechanics Enabled by Autonomous Active Learning on Viscous Thread Printing.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2024
Same author

Handedness in shearing auxetics creates rigid and compliant structures.

Science (New York, N.Y.)·2018

相关实验视频

Updated: Apr 9, 2026

A Standard and Reliable Method to Fabricate Two-Dimensional Nanoelectronics
07:12

A Standard and Reliable Method to Fabricate Two-Dimensional Nanoelectronics

Published on: August 28, 2018

9.8K

从单个元素设计和重新编程二维材料的零模式

Daniel Revier1, Molly Carton2, Jeffrey I Lipton3

  • 1Paul G. Allen School of Computer Science and Engineering, University of Washington, Seattle, WA, 98195, USA.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|August 20, 2025
PubMed
概括

研究人员开发了一种新方法,通过使用直线机制控制零模式来设计和重新编程机械超材料. 这允许弹性特性和任意材料结构的动态调整.

关键词:
合体这些机制甲基材料可重新编程对称性

更多相关视频

Fabricating van der Waals Heterostructures with Precise Rotational Alignment
09:25

Fabricating van der Waals Heterostructures with Precise Rotational Alignment

Published on: July 5, 2019

9.6K
Fabrication of Zero Mode Waveguides for High Concentration Single Molecule Microscopy
08:01

Fabrication of Zero Mode Waveguides for High Concentration Single Molecule Microscopy

Published on: May 12, 2020

8.2K

相关实验视频

Last Updated: Apr 9, 2026

A Standard and Reliable Method to Fabricate Two-Dimensional Nanoelectronics
07:12

A Standard and Reliable Method to Fabricate Two-Dimensional Nanoelectronics

Published on: August 28, 2018

9.8K
Fabricating van der Waals Heterostructures with Precise Rotational Alignment
09:25

Fabricating van der Waals Heterostructures with Precise Rotational Alignment

Published on: July 5, 2019

9.6K
Fabrication of Zero Mode Waveguides for High Concentration Single Molecule Microscopy
08:01

Fabrication of Zero Mode Waveguides for High Concentration Single Molecule Microscopy

Published on: May 12, 2020

8.2K

科学领域:

  • 材料科学
  • 机械工程
  • 超材料

背景情况:

  • 机械极端材料通过使用零模式提供可调节的弹性特性.
  • 现有的设计框架与这些零模式的任意构建和重新编程作斗争.

研究的目的:

  • 介绍一种用于定义和重编程二维极端材料的新方法.
  • 允许随意构建和动态调整元材料的特性.

主要方法:

  • 使用直线机制 (SLM) 规定零模式.
  • 使用平面对称来协调零模式.
  • 通过重新定位SLM进行现场重新编程.

主要成果:

  • 设计,测试和重新编程厘米尺度的同位素,正位素和状极端材料.
  • 在不同的材料方式和特性之间实现平滑,可逆的插值 (例如,Poisson比率).
  • 在不改变整体结构的情况下启用了选择性性.

结论:

  • 提出的方法为设计和调整2D极端材料提供了明确的策略.
  • 允许动态的机械超材料结构实现广泛的弹性特性.
  • 克服现有的超材料设计框架的局限性.