Jove
Visualize
联系我们

相关概念视频

Mechanisms of Heat Transfer II01:20

Mechanisms of Heat Transfer II

3.3K
In convection, thermal energy is carried by the large-scale flow of matter. Ocean currents and large-scale atmospheric circulation, which result from the buoyancy of warm air and water, transfer hot air from the tropics toward the poles and cold air from the poles toward the tropics. The Earth’s rotation interacts with those flows, causing the observed eastward flow of air in the temperate zones. Convection dominates heat transfer by air, and the amount of available space for the airflow...
3.3K
Conduction, Convection and Radiation: Problem Solving01:20

Conduction, Convection and Radiation: Problem Solving

1.3K
There are three methods by which heat transfer can take place: conduction, convection, and radiation. Each method has unique and interesting characteristics, but all three have two things in common: they transfer heat solely because of a temperature difference; and the greater the temperature difference, the faster the heat transfer.
In order to solve a problem related to heat transfer, first of all, the situation needs to be examined to determine the type of heat transfer involved. This could...
1.3K
Mechanisms of Heat Transfer01:14

Mechanisms of Heat Transfer

359
Heat transfer between the human body and its environment occurs through four main mechanisms: conduction, convection, radiation, and evaporation.
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant...
359
Mechanisms of Heat Transfer I01:14

Mechanisms of Heat Transfer I

4.3K
Just as interesting as the effects of heat transfer on a system are the methods by which the heat transfer occur. Whenever there is a temperature difference, heat transfer occurs. It may occur rapidly, such as through a cooking pan, or slowly, such as through the walls of a picnic ice box. So many processes involve heat transfer that it is hard to imagine a situation where no heat transfer occurs. Yet, every heat transfer takes place by only three methods: conduction, convection, and radiation.
4.3K
Mechanism of heat transfer01:19

Mechanism of heat transfer

1.2K
Understanding heat transfer mechanisms is essential for understanding how our bodies maintain balance in different environmental conditions. When the environment is thermoneutral, the body is in a state of balance, neither using nor releasing energy to maintain its core temperature. However, when the environment is not thermoneutral, the body employs four heat transfer mechanisms to maintain homeostasis: conduction, convection, evaporation, and radiation. These mechanisms facilitate heat...
1.2K
Heat Flow and Specific Heat01:12

Heat Flow and Specific Heat

5.5K
Heat is a type of energy transfer that is caused by a temperature difference, and it can change the temperature of an object. Since heat is a form of energy, its SI unit is the joule (J). Another common unit of energy often used for heat is the calorie (cal), which is defined as the energy needed to change the temperature of 1 g of water by 1 °C, specifically between 14.5 °C and 15.5 °C, since the energy needed shows a slight temperature dependence. Another commonly used unit is...
5.5K

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

Effects of Rosmarinic Acid and Sinapic Acid on the Skeletal System in Ovariectomized Rats.

Nutrients·2026
Same author

Diosmin or Hesperidin? Comparison of Antioxidative Action of Two Venoactive Flavonoids in Type 1 Diabetic Rats.

International journal of molecular sciences·2025
Same author

Exploring the divide between dental clinicians and academics for more inclusive partnerships: perspectives on building a research network.

BMC oral health·2025
Same author

Effects of magnolol on the liver antioxidant status in rats with diabetes.

Pharmacological reports : PR·2025
Same author

Effects of sodium-glucose cotransporter 2 (SGLT2) inhibitors, dapagliflozin and canagliflozin, on the musculoskeletal system in an experimental model of diabetes induced by high-fat diet and streptozotocin in rats.

Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie·2025
Same author

Effect of Chrysin, a Flavonoid Present in Food, on the Skeletal System in Rats with Experimental Type 1 Diabetes.

Nutrients·2025
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

相关实验视频

Updated: Jul 16, 2025

Author Spotlight: Computing the Effects of a Local Radiofrequency Hyperthermia Intervention on Tumor Biomechanics
10:23

Author Spotlight: Computing the Effects of a Local Radiofrequency Hyperthermia Intervention on Tumor Biomechanics

Published on: December 1, 2023

461

使用人工智能算法在导热建模过程中重建传热系数.

Elzbieta Gawronska1, Maria Zych2, Robert Dyja1

  • 1Faculty of Mechanical Engineering and Computer Science, Czestochowa University of Technology, Dabrowskiego 69, 42-201, Czestochowa, Poland.

Scientific reports
|September 15, 2023
PubMed
概括

蜂群智能算法,包括人工蜂群 (ABC) 和群优化 (ACO),准确地重建复杂系统中的传热系数. 这些人工智能方法显示出优化生产和数据分析的潜力.

更多相关视频

Author Spotlight: Simulation and Analysis of the Temperature Rise of Ring Main Unit Equipment
04:35

Author Spotlight: Simulation and Analysis of the Temperature Rise of Ring Main Unit Equipment

Published on: July 5, 2024

1.9K
Characterization of Thermal Transport in One-dimensional Solid Materials
05:20

Characterization of Thermal Transport in One-dimensional Solid Materials

Published on: January 26, 2014

17.4K

相关实验视频

Last Updated: Jul 16, 2025

Author Spotlight: Computing the Effects of a Local Radiofrequency Hyperthermia Intervention on Tumor Biomechanics
10:23

Author Spotlight: Computing the Effects of a Local Radiofrequency Hyperthermia Intervention on Tumor Biomechanics

Published on: December 1, 2023

461
Author Spotlight: Simulation and Analysis of the Temperature Rise of Ring Main Unit Equipment
04:35

Author Spotlight: Simulation and Analysis of the Temperature Rise of Ring Main Unit Equipment

Published on: July 5, 2024

1.9K
Characterization of Thermal Transport in One-dimensional Solid Materials
05:20

Characterization of Thermal Transport in One-dimensional Solid Materials

Published on: January 26, 2014

17.4K

科学领域:

  • 计算式热传输是一种热传输技术.
  • 在工程领域的人工智能.
  • 优化算法 优化算法

背景情况:

  • 对传热系数进行准确的重建对于热系统分析至关重要.
  • 与非理想接触的连续性边界条件在热传递建模中提出了独特的挑战.
  • 群体智能算法为工程中的复杂反向问题提供了新的方法.

研究的目的:

  • 在连续性边界条件下利用群集算法重建传热系数.
  • 在这个重建任务中评估人工蜂群 (ABC) 和群优化 (ACO) 算法的性能.
  • 评估网格大小,人口,代和数据干扰对算法准确性的影响.

主要方法:

  • 在定制应用软件中实现经典的群集算法 (ABC和ACO).
  • 使用ABC和ACO算法最小化一个错误函数.
  • 具有导热层的模系统的数值模拟,考虑对称性和特定的边界条件 (罗宾,绝缘,连续性).
  • 使用不同的有限元网格,种群大小,代数和噪音水平进行测试.

主要成果:

  • 无论是ABC还是ACO算法都成功地以高精度重建了传热系数.
  • 结果显示与参考值密切一致,即使在数据干扰的情况下.
  • 这项研究验证了不同模拟参数的群集算法的有效性.

结论:

  • 群集智能算法,特别是ABC和ACO,是重建热传递系数的有效工具.
  • 这些人工智能驱动的方法显示出优化生产流程和在工程中实现数据驱动决策的巨大潜力.
  • 这项研究强调了群体算法在解决复杂的反向传热问题的稳定性和准确性.