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

Search research articles

Related Experiment Video

Updated: Nov 22, 2025

Exploring the Effects of Atmospheric Forcings on Evaporation: Experimental Integration of the Atmospheric Boundary Layer and Shallow Subsurface

Exploring the Effects of Atmospheric Forcings on Evaporation: Experimental Integration of the Atmospheric Boundary Layer and Shallow Subsurface

Published on: June 8, 2015

Diffusive Resettlement: Irreversible Urban Transitions in Closed Systems.

Bohdan Slavko¹, Mikhail Prokopenko¹, Kirill S Glavatskiy¹

¹Centre for Complex Systems, The University of Sydney, Sydney, NSW 2006, Australia.

Entropy (Basel, Switzerland)

|January 6, 2021

Summary

This summary is machine-generated.

Related Concept Videos

Reversible and Irreversible Processes

Reversible and Irreversible Processes

The thermodynamic processes can be classified into reversible and irreversible processes. The processes that can be restored to their initial state are called reversible processes. It is only possible if the process is in quasi-static equilibrium, i.e., it takes place in infinitesimally small steps, and the system remains at equilibrium However, these are ideal processes and do not occur naturally. An ideal system undergoing a reversible process is always in thermodynamic equilibrium within...

Theories of Dissolution: Diffusion Layer Model

Theories of Dissolution: Diffusion Layer Model

Dissolution, the process by which drug particles dissolve in a solvent, is explained by the diffusion layer model, a theoretical framework that simulates the absorption of oral drugs and allows us to analyze experimental data.
This process starts with a thin layer, saturated with the drug, forming at the interface between the solid and liquid. The solute then diffuses from this layer into the main solution. The Noyes-Whitney equation suggests that the rate of dissolution relies on the diffusion...

Phase Transitions: Sublimation and Deposition

Phase Transitions: Sublimation and Deposition

Some solids can transition directly into the gaseous state, bypassing the liquid state, via a process known as sublimation. At room temperature and standard pressure, a piece of dry ice (solid CO2) sublimes, appearing to gradually disappear without ever forming any liquid. Snow and ice sublimate at temperatures below the melting point of water, a slow process that may be accelerated by winds and the reduced atmospheric pressures at high altitudes. When solid iodine is warmed, the solid sublimes...

Entropy Change in Reversible Processes

Entropy Change in Reversible Processes

In the Carnot engine, which achieves the maximum efficiency between two reservoirs of fixed temperatures, the total change in entropy is zero. The observation can be generalized by considering any reversible cyclic process consisting of many Carnot cycles. Thus, it can be stated that the total entropy change of any ideal reversible cycle is zero.
The statement can be further generalized to prove that entropy is a state function. Take a cyclic process between any two points on a p-V diagram.

Control Volume and System Representations

Control Volume and System Representations

Two key frameworks are employed to analyze mass, energy, and momentum transfer: the control volume approach and the system approach. These frameworks offer different perspectives, depending on whether the focus is on a specific region in space (control volume approach) or a defined mass of fluid (system approach).
The control volume approach considers a stationary region in space through which fluid flows. This region is bounded by a control surface. For instance, in the case of water...

Theories of Dissolution: The Danckwerts' Model and Interfacial Barrier Model

Theories of Dissolution: The Danckwerts' Model and Interfacial Barrier Model

Various dissolution theories provide insight into the factors that influence the dissolution rate. Danckwerts' Model suggests that turbulence, rather than a stagnant layer, characterizes the dissolution medium at the solid-liquid interface. In this model, the agitated solvent contains macroscopic packets that move to the interface via eddy currents, facilitating the absorption and delivery of the drug to the bulk solution. The regular replenishment of solvent packets maintains the...

You might also read

Related Articles

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

Sort by

Same author

The effect of sleep-wake behaviors on the onset of mania in youth: A computational model.

European psychiatry : the journal of the Association of European Psychiatrists·2026

Same author

Impact of opinion dynamics on recurrent pandemic waves: balancing risk aversion and peer pressure.

Interface focus·2025

Same author

Multi-scale phylodynamic modelling of rapid punctuated pathogen evolution.

PLoS computational biology·2025

Same author

Why collective behaviours self-organize to criticality: a primer on information-theoretic and thermodynamic utility measures.

Royal Society open science·2025

Same author

Local Equilibrium in Transient Heat Conduction.

Entropy (Basel, Switzerland)·2025

Same author

Bounded risk disposition explains Turing patterns and tipping points during spatial contagions.

Royal Society open science·2024

Same journal

Research on a Regional Availability Evaluation Model for Road-Area High-Entropy Energy Based on Synergy Factors.

Entropy (Basel, Switzerland)·2026

Same journal

Atmospheric Turbulence Channel Modeling and Performance Analysis of a CO-ZP-OFDM Coherent Optical Communication System for UAV Air-to-Ground Scenarios.

Entropy (Basel, Switzerland)·2026

Same journal

Information Geometry and Asymptotic Theory for SMML Estimators.

Entropy (Basel, Switzerland)·2026

Same journal

Correlation Entropy and Power-Law Kinetics.

Entropy (Basel, Switzerland)·2026

Same journal

Research on the Contagion of Systemic Financial Risk Under the Impact of Climate Risks-From the Perspective of Complex Networks and Machine Learning.

Entropy (Basel, Switzerland)·2026

Same journal

The Statistical-Mechanical Meaning of the Wave Function of Quantum Mechanics.

Entropy (Basel, Switzerland)·2026

See all related articles

This study models city evolution using a non-equilibrium framework, treating intra-urban migration as diffusion. It reveals two population groups with distinct relocation patterns, enabling long-term spatial structure predictions.

Area of Science:

Urban dynamics
Statistical physics
Computational social science

Background:

Understanding urban evolution is crucial for sustainable city planning.
Existing models often simplify complex intra-urban population dynamics.
Migration patterns significantly shape a city's spatial structure over time.

Purpose of the Study:

To develop a novel non-equilibrium framework for modeling city evolution.
To analyze intra-urban migration as an irreversible diffusive process.
To predict long-term spatial structures and equilibrium population distributions.

Main Methods:

Developed a non-equilibrium theoretical framework.
Modeled intra-urban migration as a diffusive process.
Validated the framework using migration data from Australian capital cities.

Keywords:

diffusion equilibrium human migration intra-urban relocation irreversible thermodynamics relaxation urban modelling

More Related Videos

Using Generative Art to Convey Past and Future Climate Transitions

Using Generative Art to Convey Past and Future Climate Transitions

Published on: March 31, 2023

Design and Construction of an Urban Runoff Research Facility

Design and Construction of an Urban Runoff Research Facility

Published on: August 8, 2014

Related Experiment Videos

Last Updated: Nov 22, 2025

Exploring the Effects of Atmospheric Forcings on Evaporation: Experimental Integration of the Atmospheric Boundary Layer and Shallow Subsurface

Exploring the Effects of Atmospheric Forcings on Evaporation: Experimental Integration of the Atmospheric Boundary Layer and Shallow Subsurface

Published on: June 8, 2015

Using Generative Art to Convey Past and Future Climate Transitions

Using Generative Art to Convey Past and Future Climate Transitions

Published on: March 31, 2023

Design and Construction of an Urban Runoff Research Facility

Design and Construction of an Urban Runoff Research Facility

Published on: August 8, 2014

Main Results:

The framework successfully models city evolution based on migration data.
Identified two distinct population groups with different relocation frequencies.
Interpreted these groups as components of a binary fluid mixture with unique relaxation times.

Conclusions:

The proposed non-equilibrium framework provides a robust method for studying urban dynamics.
The binary fluid analogy offers new insights into population heterogeneity and mobility.
The model enables accurate long-term predictions of urban spatial structures and population distributions.