Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Mechanisms of Heat Transfer II01:20

Mechanisms of Heat Transfer II

5.5K
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...
5.5K
Mechanisms of Heat Transfer01:14

Mechanisms of Heat Transfer

2.2K
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...
2.2K
Mechanisms of Heat Transfer I01:14

Mechanisms of Heat Transfer I

7.7K
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.
7.7K
Mechanism of heat transfer01:19

Mechanism of heat transfer

2.3K
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...
2.3K
Thermal expansion and Thermal stress: Problem Solving01:27

Thermal expansion and Thermal stress: Problem Solving

2.4K
San Francisco's Golden Gate Bridge is exposed to temperatures ranging from -15 °C to 40 °C. At its coldest, the main span of the bridge is 1275 m long. Assuming that the bridge is made entirely of steel, what is the change in its length between these temperatures?
To solve the problem, first, identify the known and unknown quantities. The initial length (L) of the bridge is 1275 m, the coefficient of linear expansion (α) for steel is 12 x 10-6/°C, and the change in temperature (ΔT) is 55...
2.4K
Thermodynamics: Activity Coefficient01:24

Thermodynamics: Activity Coefficient

3.4K
Activity is the measure of the effective concentration of the species in solution. It can be expressed as the product of the molar concentration of the species and its activity coefficient. The activity coefficient is a dimensionless quantity and depends on the total ionic strength of the solution.
The activity coefficient is a measure of the deviation from ideal behavior. When the ionic strength of the solution is minimal, the activity coefficient of an ionic species is close to unity, making...
3.4K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Environment and reproductive health in China: challenges and opportunities.

Environmental health perspectives·2012
Same author

Posttransplant mortality risk assessment for adult-to-adult right-lobe living donor liver recipients with benign end-stage liver disease.

Scandinavian journal of gastroenterology·2012
Same author

Sodium nitrite protects against kidney injury induced by brain death and improves post-transplant function.

Kidney international·2012
Same author

OIC-A006-loaded true bone ceramic heals rabbit critical-sized segmental radial defect.

Die Pharmazie·2012
Same author

Liquid chromatography-mass spectrometric multiple reaction monitoring-based strategies for expanding targeted profiling towards quantitative metabolomics.

Current drug metabolism·2012
Same author

Structural and functional characterization of mature forms of metalloprotease E495 from Arctic sea-ice bacterium Pseudoalteromonas sp. SM495.

PloS one·2012

Related Experiment Video

Updated: Apr 16, 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

9.5K

Optimized couplers for interfacial thermal transport.

Bo Chen1, Lifa Zhang

  • 1Tongda College, Nanjing University of Posts and Telecommunications, Nanjing Jiangsu 210003, People's Republic of China.

Journal of Physics. Condensed Matter : an Institute of Physics Journal
|March 6, 2015
PubMed
Summary
This summary is machine-generated.

Researchers optimized interfacial thermal conductance by tuning atomic chain properties. Selecting the right atomic mass and spring constant for the thermal coupler maximizes heat transfer efficiency.

More Related Videos

Measurements of Local Instantaneous Convective Heat Transfer in a Pipe - Single and Two-phase Flow
08:25

Measurements of Local Instantaneous Convective Heat Transfer in a Pipe - Single and Two-phase Flow

Published on: April 30, 2018

7.8K
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

19.7K

Related Experiment Videos

Last Updated: Apr 16, 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

9.5K
Measurements of Local Instantaneous Convective Heat Transfer in a Pipe - Single and Two-phase Flow
08:25

Measurements of Local Instantaneous Convective Heat Transfer in a Pipe - Single and Two-phase Flow

Published on: April 30, 2018

7.8K
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

19.7K

Area of Science:

  • Condensed Matter Physics
  • Materials Science
  • Nanotechnology

Background:

  • Efficient thermal management is crucial for advanced electronic devices.
  • Understanding interfacial thermal transport is key to improving heat dissipation.
  • Current methods for optimizing thermal interfaces are limited.

Purpose of the Study:

  • To investigate methods for optimizing interfacial thermal conductance.
  • To identify key properties of thermal couplers that maximize heat transfer.
  • To provide guidelines for designing high-performance thermal interfaces.

Main Methods:

  • Simulated thermal transport through a one-dimensional atomic chain model.
  • Analyzed the influence of coupler properties (spring constant, atomic mass) on thermal conductance.
  • Investigated specific cases based on lead material properties (cutoff frequency, acoustic impedance).

Main Results:

  • Interfacial thermal conductance can be maximized by selecting optimal spring constant and atomic mass for the coupler.
  • For leads with equal cutoff frequencies, optimal coupler has matching cutoff frequency and geometric mean spring constant.
  • For leads with equal acoustic impedances, optimal coupler has matching impedance and harmonic mean spring constant.
  • General optimization occurs near the cross point of geometric mean impedance and harmonic mean cutoff frequency.

Conclusions:

  • Specific material properties of thermal couplers can be engineered to significantly enhance interfacial thermal conductance.
  • The study provides a theoretical framework for designing optimized thermal interfaces.
  • Findings have potential applications in improving thermal transport in various systems.