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相关概念视频

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A coaxial cable consists of a central copper conductor used for transmitting signals, followed by an insulator shield, a metallic braided mesh that prevents signal interference, and a plastic layer that encases the entire assembly.
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If a magnetic field is sustained, there must be a current in a closed circuit or loop, implying some energy has been spent in creating the field. If this energy is not dissipated via the circuit's resistance, it is stored in the field.
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A Faraday disk dynamo is a DC generator, producing an emf that is constant in time. It consists of a conducting disk that rotates with a constant angular velocity in the magnetic field, perpendicular to the disk's plane. The rotation of the disk causes a change in magnetic flux, which induces an emf, causing opposite charges to develop on the rim and in the center of the disk. The polarity of the induced emf can be determined by the direction of the magnetic field and the direction of the...
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全方位收集能源的羊毛.

Chae-Lin Park1,2, Byeonghwa Goh3,4, Shi Hyeong Kim1,2

  • 1HYU-KITECH Joint Department, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea.

ACS applied materials & interfaces
|July 10, 2023
PubMed
概括

研究人员开发了一种使用羊毛纤维和单壁碳纳米管 (SWCNTs) 的新型球形羊毛收割机,可以从所有方向上从机械能量产生电力. 这一突破为动态水下环境中的自动供电海洋设备提供了有希望的解决方案.

关键词:
碳纳米管的使用方法有纤维的羊毛纤维的羊毛.分子动力学模拟模拟一个全方位的响应.水下机械能源收获机水下机械能源收获机

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科学领域:

  • 材料科学 材料科学 材料科学
  • 纳米技术纳米技术
  • 收集能源 收集能源

背景情况:

  • 水下机械能源收获器对于自动供电的海洋设备,如传感器和监控系统至关重要.
  • 现有的收割机经常与全方位力接收作斗争,这限制了它们在可变海洋环境中的有效性.
  • 耐压薄膜和耐拉伸纤维显示出有前途,但也有局限性.

研究的目的:

  • 开发一个全方位的水下机械能源收割机.
  • 为了研究一种新的SWCNT/羊毛复合材料中的平易离子现象.
  • 为了阐明收割机的纳米尺度操作机制.

主要方法:

  • 使用羊毛纤维和单壁碳纳米管 (SWCNTs) 制造球形羊毛.
  • 在不同方向的机械应力下测试收割机的电力输出.
  • 使用全原子分子动力学模拟来理解纳米尺度操作机制.

主要成果:

  • 在SWCNT/羊毛羊皮表现出重复的电流生成,无论应用力方向.
  • 收割机每次输入机械应力达到高达33.476mA/MPa的高电流,这是水下收割机中报告的最高值.
  • 该设备在低频环境 (<1 Hz) 中特别有效,适用于波浪和风等自然能源.

结论:

  • 球形羊毛收割机提供了一个强大的解决方案,用于全方位的水下机械能量收获.
  • 在SWCNT/羊毛复合物中,压离子效应是能量转换的关键机制.
  • 这项技术具有很大的潜力,可以为使用环境海洋能源的海洋仪器和设备提供动力.