Jove
Visualize
お問い合わせ

関連する概念動画

Quantifying Heat02:46

Quantifying Heat

Thermal Energy Microscopically, thermal energy is the kinetic energy associated with the random motion of atoms and molecules. Temperature is a quantitative measure of “hot” or “cold”, which depends on the amount of thermal energy. When the atoms and molecules in an object are moving or vibrating quickly, they have a higher average kinetic energy (KE) (or higher thermal energy), and the object is perceived as “hot”, or it is described as being at a higher temperature. When the atoms and...
Enthalpy02:59

Enthalpy

Chemists ordinarily use a property known as enthalpy (H) to describe the thermodynamics of chemical and physical processes. Enthalpy is defined as the sum of a system’s internal energy (E) and the mathematical product of its pressure (P) and volume (V):
Heating and Cooling Curves02:44

Heating and Cooling Curves

When a substance—isolated from its environment—is subjected to heat changes, corresponding changes in temperature and phase of the substance is observed; this is graphically represented by heating and cooling curves.
For instance, the addition of heat raises the temperature of a solid; the amount of heat absorbed depends on the heat capacity of the solid (q = mcsolidΔT). According to thermochemistry, the relation between the amount of heat absorbed or released by a substance, q, and its...
Cycloaddition Reactions: MO Requirements for Thermal Activation01:16

Cycloaddition Reactions: MO Requirements for Thermal Activation

Thermal cycloadditions are reactions where the source of activation energy needed to initiate the reaction is provided in the form of heat. A typical example of a thermally-allowed cycloaddition is the Diels–Alder reaction, which is a [4 + 2] cycloaddition. In contrast, a [2 + 2] cycloaddition is thermally forbidden.
The Carnot Cycle01:30

The Carnot Cycle

Converting work to heat is an irreversible process, and the purpose of a heat engine is to reverse the effect partially. Heat engines aim to increase the efficiency of the reversal, that is, maximize the work retrieved from heat. If the efficiency of a heat engine were 100%, it would imply reversing the process completely without introducing any other effect. Thus, it would violate the second law of thermodynamics.
What could be the theoretical limit to the efficiency of a heat engine? The...
Mechanisms of Heat Transfer I01:14

Mechanisms of Heat Transfer I

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.

こちらも読む

関連記事

共著者、ジャーナル、引用グラフによってこの研究に関連する記事。

並び替え
Same author

Selective stimulation of neurons in visual cortex enables segregation of slow and fast connections.

Neuroscience·2014
Same author

Psychological management of the retarded child and the family.

Pediatric annals·2014
Same author

Binocular activation elicits differences in neurometabolic coupling in visual cortex.

Neuroscience·2013
Same author

Spatial summation of neurometabolic coupling in the central visual pathway.

Neuroscience·2012
Same author

'A child with severe night terrors and sleep-walking responds to melatonin therapy'.

Developmental medicine and child neurology·2004
Same author

Beyond the classical receptive field in the visual cortex.

Progress in brain research·2001
JoVE
x logofacebook logolinkedin logoyoutube logo
JoVEについて
概要リーダーシップブログJoVEヘルプセンター
著者向け
出版プロセス編集委員会範囲と方針査読よくある質問投稿
図書館員向け
推薦の声購読アクセスリソース図書館諮問委員会よくある質問
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experimentsアーカイブ
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教員リソースセンター教員サイト
利用規約
プライバシーポリシー
ポリシー

関連する実験動画

Updated: Jul 12, 2026

Pool-Boiling Heat-Transfer Enhancement on Cylindrical Surfaces with Hybrid Wettable Patterns
07:32

Pool-Boiling Heat-Transfer Enhancement on Cylindrical Surfaces with Hybrid Wettable Patterns

Published on: April 10, 2017

Si単位と熱エネルギー

R D Freeman

    Science (New York, N.Y.)
    |February 21, 1975
    PubMed
    まとめ

    No abstract available in PubMed .

    さらに関連する動画

    Cryogenic Liquid Jets for High Repetition Rate Discovery Science
    08:34

    Cryogenic Liquid Jets for High Repetition Rate Discovery Science

    Published on: May 9, 2020

    Comparative Study of Simulation of Temperature Rise in Ring Main Unit
    04:35

    Comparative Study of Simulation of Temperature Rise in Ring Main Unit

    Published on: July 5, 2024

    関連する実験動画

    Last Updated: Jul 12, 2026

    Pool-Boiling Heat-Transfer Enhancement on Cylindrical Surfaces with Hybrid Wettable Patterns
    07:32

    Pool-Boiling Heat-Transfer Enhancement on Cylindrical Surfaces with Hybrid Wettable Patterns

    Published on: April 10, 2017

    Cryogenic Liquid Jets for High Repetition Rate Discovery Science
    08:34

    Cryogenic Liquid Jets for High Repetition Rate Discovery Science

    Published on: May 9, 2020

    Comparative Study of Simulation of Temperature Rise in Ring Main Unit
    04:35

    Comparative Study of Simulation of Temperature Rise in Ring Main Unit

    Published on: July 5, 2024