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相关概念视频

X-ray Crystallography02:18

X-ray Crystallography

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The size of the unit cell and the arrangement of atoms in a crystal may be determined from measurements of the diffraction of X-rays by the crystal, termed X-ray crystallography.
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
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The Periodic Table03:25

The Periodic Table

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As early chemists discovered more elements, they realized that various elements could be grouped by their similar chemical behaviors. One such grouping includes lithium (Li), sodium (Na), and potassium (K). All of these elements are shiny, conduct heat and electricity well, and have similar chemical properties. A second grouping includes calcium (Ca), strontium (Sr), and barium (Ba), which also are shiny, good conductors of heat and electricity, and have chemical properties in common. However,...
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Periodic Classification of the Elements04:00

Periodic Classification of the Elements

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The periodic table arranges atoms based on increasing atomic number so that elements with the same chemical properties recur periodically. When their electron configurations are added to the table, a periodic recurrence of similar electron configurations in the outer shells of these elements is observed. Because they are in the outer shells of an atom, valence electrons play the most important role in chemical reactions. The outer electrons have the highest energy of the electrons in an atom...
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Effective Value of a Periodic Waveform01:07

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The concept of effective value, the root mean square (RMS) value, is crucial in understanding electrical circuits and power delivery. This idea emerges from the necessity to measure the effectiveness of a voltage or current source in supplying power to a resistive load.
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The Periodic Table and Organismal Elements00:57

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Overview
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The Periodic Table and Organismal Elements01:27

The Periodic Table and Organismal Elements

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Elements are the smallest units of matter that cannot be broken down further by chemical processes. There are 118 known elements, but not all of these are naturally occurring, and only a few of them are essential for life. Living matter is composed primarily of carbon, nitrogen, hydrogen, and oxygen, with smaller amounts of other elements like calcium, phosphorus, potassium, and sulfur. Other elements are also necessary for life but only in trace amounts.
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机器人射线由周期性环断驱动.

Zi-Long Zhao1, Zhi-Peng Wang1, Qi Xie2

  • 1Institute of Solid Mechanics, School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China.

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PubMed
概括
此摘要是机器生成的。

受到鱼的启发,科学家们使用灵活的材料和单一的执行器创建了一个柔软的机器人鱼. 这种生物灵感的机器人实现了高效,稳定和安静的水下运动,并减少了能源消耗.

关键词:
自主移动的自主机场.一个蝶的打击.弹性不稳定的弹性不稳定机器人鱼是一种机器人鱼.快速透过的快速通过

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科学领域:

  • 机器人技术 机器人技术 机器人技术
  • 生物启发工程 生物启发工程
  • 流体动力学 流体动力学

背景情况:

  • 动物的运动,特别是鱼类的游泳,提供了由进化所改进的高效,机动和隐蔽的运动策略.
  • 现有的水下机器人经常面临效率,机动性和能源消耗方面的挑战.

研究的目的:

  • 开发一种不受束,柔软的机器人鱼,灵感来自Taeniura lymma的游泳步态.
  • 为了实现连续,稳定和定向的水下运动,使用一种新的驱动机制.

主要方法:

  • 生物启发的设计模仿了Taeniura lymma的游泳.
  • 开发一种软软的机器人鱼,使用柔性棒和片.
  • 弹性快速诱导的形状转换用于通过单个执行器控制机车运动.
  • 理论分析和数值模拟后曲的形态演变.
  • 物理原型的制造和测试,以验证性能.

主要成果:

  • 机器人鱼展示了连续,稳定和定向的水下运动.
  • 运动是通过循环,可逆的机械变形来实现的,这种变形是由弹性-snapping驱动的.
  • 该设计允许使用单个执行器进行控制,释放储存的弹性应变能量.
  • 原型展示了高效,稳定和安静的游泳能力.
  • 与现有的水下机器人相比,机器人射线显示的速度中等,能耗大大降低.

结论:

  • 开发的软型机器人鱼提供了一种高效,低能耗的水下机动解决方案.
  • 生物灵感设计和单驱动器系统对未来的形状变形机器人和软机器人充满希望.
  • 这项研究证实了模仿机器人应用自然游泳步态的有效性.