Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Mechanisms of Heat Transfer II

Mechanisms of Heat Transfer II

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...

Mechanisms of Heat Transfer I

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.

Linear Approximation in Frequency Domain

Linear Approximation in Frequency Domain

Linear systems are characterized by two main properties: superposition and homogeneity. Superposition allows the response to multiple inputs to be the sum of the responses to each individual input. Homogeneity ensures that scaling an input by a scalar results in the response being scaled by the same scalar.
In contrast, nonlinear systems do not inherently possess these properties. However, for small deviations around an operating point, a nonlinear system can often be approximated as linear....

Mechanisms of Heat Transfer

Mechanisms of Heat Transfer

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...

Thermodynamic Systems

Thermodynamic Systems

A thermodynamic system is a set of objects whose thermodynamic properties are of interest. The system is considered to be embedded in its surroundings or the environment. The system and its environment can exchange heat and do work on each other through a boundary that separates them. However, the immediate surroundings of the system interact with it directly and therefore have a much stronger influence on its behavior and properties.
Consider an example of tea boiling in a kettle. The...

Path Between Thermodynamics States

Path Between Thermodynamics States

Consider the two thermodynamic processes involving an ideal gas that are represented by paths AC and ABC in Figure 1:

You might also read

Related Articles

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

Sort by

Same author

Organocatalytic enantioselective synthesis and derivatizations of bridged <i>N</i>,<i>O</i>-acetal bicyclic scaffolds.

Chemical science·2026

Same author

Line Width-Activated Interband Contribution to Thermally Driven Phonon Angular Momentum.

Nano letters·2026

Same author

A light-promoted activation fluorescein derivative with unexpected structure for sensing hydrogen sulfide.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy·2026

Same author

Synthesis of <i>N</i>-(4-Vinylidenetetrahydrofuran-2-yl)amides and Applications in Skeletal Rearrangement to 2,3-Dihydro-1<i>H</i>-pyrrol-2-ols/Substituted Pyrroles and Bridged Bicyclic Scaffold Construction.

Organic letters·2026

Same author

Ab Initio Theory of Phonon Magnetic Moment Induced by Electron-Phonon Coupling in Magnetic Materials.

Physical review letters·2026

Same author

Graphene-Mediated Contact Engineering for a High Thermoelectric Performance in 2D PdSe<sub>2</sub>.

ACS applied materials & interfaces·2026

Search research articles

Related Experiment Video

Updated: Dec 30, 2025

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

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

Published on: December 1, 2023

Optimized interfacial thermal coupling between two nonlinear systems.

Longkai Lu¹, Guohuan Xiong¹, Yuwen Huang^2,3

¹NNU-SULI Thermal Energy Research Center (NSTER) and Center for Quantum Transport and Thermal Energy Science (CQTES), School of Physics and Technology, Nanjing Normal University, Nanjing 210023, People's Republic of China.

Journal of Physics. Condensed Matter : an Institute of Physics Journal

|January 23, 2020

Summary

This summary is machine-generated.

Interfacial thermal resistance (ITR) is a key challenge in integrated circuits. Optimizing interface coupling in nonlinear systems can reduce ITR, offering potential applications for advanced electronics.

More Related Videos

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

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

Published on: April 10, 2017

Interfacial Molecular-level Structures of Polymers and Biomacromolecules Revealed via Sum Frequency Generation Vibrational Spectroscopy

Interfacial Molecular-level Structures of Polymers and Biomacromolecules Revealed via Sum Frequency Generation Vibrational Spectroscopy

Published on: August 13, 2019

Related Experiment Videos

Last Updated: Dec 30, 2025

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

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

Published on: December 1, 2023

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

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

Published on: April 10, 2017

Interfacial Molecular-level Structures of Polymers and Biomacromolecules Revealed via Sum Frequency Generation Vibrational Spectroscopy

Interfacial Molecular-level Structures of Polymers and Biomacromolecules Revealed via Sum Frequency Generation Vibrational Spectroscopy

Published on: August 13, 2019

Area of Science:

Condensed Matter Physics
Materials Science
Nonlinear Dynamics

Background:

Interfacial thermal resistance (ITR), also known as Kapitza resistance, impedes heat dissipation in integrated circuits, limiting device miniaturization and performance.
Efficient heat management is crucial for the continued advancement of high-density electronic devices.

Purpose of the Study:

To investigate the relationship between interfacial thermal coupling and ITR in nonlinear systems.
To explore methods for optimizing interfacial thermal coupling to reduce ITR for practical applications.

Main Methods:

Utilized molecular dynamics simulations to model a one-dimensional FPU-β heterojunction.
Analyzed the impact of varying interface coupling coefficients (ICC) on ITR.

Main Results:

Observed that ITR initially decreases and then increases with rising ICC.
Identified a double-scale behavior within the heterojunctions.
Validated theoretical explanations (self-consistent phonon and effective phonon theories) for optimal ICC under weak nonlinearity.

Conclusions:

Optimal interfacial thermal coupling can significantly reduce ITR in nonlinear systems.
The findings have potential applications in developing strategies to mitigate ITR in real materials for improved thermal management in electronics.