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相关概念视频

Temperature Measurement Sites01:14

Temperature Measurement Sites

1.5K
A thermometer measures body temperature. The common sites for measuring body temperature are the oral cavity, axillary region, temporal artery, and skin surface, such as the forehead, abdomen, and axilla. True core body temperature is assessed in the rectum, tympanic membrane, pulmonary artery, esophagus, and urinary bladder.
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...
1.5K
Ferromagnetism01:31

Ferromagnetism

2.4K
Materials like iron, nickel, and cobalt consist of magnetic domains, within which the magnetic dipoles are arranged parallel to each other. The magnetic dipoles are rigidly aligned in the same direction within a domain by quantum mechanical coupling among the atoms. This coupling is so strong that even thermal agitation at room temperature cannot break it. The result is that each domain has a net dipole moment. However, some materials have weaker coupling, and are ferromagnetic at lower...
2.4K

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相关实验视频

Updated: Jun 4, 2025

Near-Infrared Temperature Measurement Technique for Water Surrounding an Induction-heated Small Magnetic Sphere
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Near-Infrared Temperature Measurement Technique for Water Surrounding an Induction-heated Small Magnetic Sphere

Published on: April 30, 2018

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一种基于磁纳米粒子的高精度实时温度获取方法.

Yuchang Zhu1, Li Ke1, Yijing Wei1

  • 1School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, China.

Sensors (Basel, Switzerland)
|December 17, 2024
PubMed
概括

这项研究引入了先进的磁纳米粒子方法,用于医学中精确,非侵入性的温度传感. 优化的算法显著提高了实时温度反转的准确性和速度.

关键词:
波的振幅是波的振幅磁性纳米粒子是一种磁性纳米粒子.磁热方程中的磁热方程温度逆转是温度的逆转.

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In Vitro and In Vivo Delivery of Magnetic Nanoparticle Hyperthermia Using a Custom-Built Delivery System
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In Vitro and In Vivo Delivery of Magnetic Nanoparticle Hyperthermia Using a Custom-Built Delivery System

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Magnetic-, Acoustic-, and Optical-Triple-Responsive Microbubbles for Magnetic Hyperthermia and Pothotothermal Combination Cancer Therapy
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Magnetic-, Acoustic-, and Optical-Triple-Responsive Microbubbles for Magnetic Hyperthermia and Pothotothermal Combination Cancer Therapy

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Last Updated: Jun 4, 2025

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科学领域:

  • 生物医学工程 生物医学工程
  • 材料科学 材料科学 材料科学
  • 纳米技术 纳米技术

背景情况:

  • 磁纳米粒子 (MNP) 具有独特的磁热特性,对生物医学应用有价值.
  • 准确的,实时的,非侵入性的温度监测在各种医疗领域至关重要.
  • 现有的方法可能缺乏所需的精度或实时功能.

研究的目的:

  • 开发使用磁纳米颗粒的高精度,实时,非侵入性温度测量方法.
  • 通过分析和优化诸如切断误差,频率和振幅等参数来增强和信息获取.
  • 设计和比较先进的算法,以准确的温度反转.

主要方法:

  • 构建交流电直流叠加和双频叠加磁场激发模型.
  • 分析截断误差,刺激磁场频率和振幅对准确度的影响.
  • 开发一个单一的温度反转算法和一个联合优化算法.
  • 实现自主组粒子群集优化 (AGPSO) 方法的实时性能.

主要成果:

  • 选择了最佳参数值,以尽量减少协调信息获取中的错误.
  • 与其他优化器相比,AGPSO方法的实时性能优越,运行时间缩短 (52%和68%的减少).
  • 使用AGPSO的双频激发实现了更高的温度反转精度,将误差从0.237K降低到0.094K.

结论:

  • 拟议的基于磁纳米粒子的温度测量方法提供了高精度和实时功能.
  • 优化的磁场激发模型和先进的算法,如AGPSO显著提高温度反转的准确性和效率.
  • 这项技术具有很大的潜力,可以在生物医学应用中推进非侵入性温度监测.