Jove
Visualize
联系我们
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

相关概念视频

Mechanistic Models: Overview of Compartment Models01:21

Mechanistic Models: Overview of Compartment Models

49
Mechanistic models, a category encompassing both physiological and compartmental modeling, differ from empirical models' approaches to incorporating known factors about the systems being modeled. Empirical models describe data with minimal assumptions, while mechanistic models aim to provide a robust description of available data by specifying assumptions and integrating known factors about the system. Compartmental analysis is a key example of a mechanistic model in pharmacokinetics and...
49
Thermodynamic Systems01:06

Thermodynamic Systems

4.8K
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...
4.8K
Equilibrium Conditions for a Particle01:23

Equilibrium Conditions for a Particle

952
When an object is in equilibrium, it is either at rest or moving with a constant velocity. There are two types of equilibrium: static and dynamic. Static equilibrium occurs when an object is at rest, while dynamic equilibrium occurs when an object is moving with a constant velocity. In both cases, there must be a balance of forces acting on the object.
To understand the concept of equilibrium, let us first consider the forces acting on an object. When different forces act on an object, they can...
952
Dynamic Equilibrium02:20

Dynamic Equilibrium

49.5K
A reversible chemical reaction represents a chemical process that proceeds in both forward (left to right) and reverse (right to left) directions. When the rates of the forward and reverse reactions are equal, the concentrations of the reactant and product species remain constant over time and the system is at equilibrium. A special double arrow is used to emphasize the reversible nature of the reaction. The relative concentrations of reactants and products in equilibrium systems vary greatly;...
49.5K
Differential Form of Maxwell's Equations01:17

Differential Form of Maxwell's Equations

376
James Clerk Maxwell (1831–1879) was one of the significant contributors to physics in the nineteenth century. He is probably best known for having combined existing knowledge of the laws of electricity and the laws of magnetism with his insights to form a complete overarching electromagnetic theory, represented by Maxwell's equations. The four basic laws of electricity and magnetism were discovered experimentally through the work of physicists such as Oersted, Coulomb, Gauss, and...
376
First Law: Particles in One-dimensional Equilibrium01:10

First Law: Particles in One-dimensional Equilibrium

6.7K
Newton's first law of motion states that a body at rest remains at rest, or if in motion, remains in motion at constant velocity, unless acted on by a net external force. It also states that there must be a cause for any change in velocity (a change in either magnitude or direction) to occur. This cause is a net external force. For example, consider what happens to an object sliding along a rough horizontal surface. The object quickly grinds to a halt, due to the net force of friction. If...
6.7K

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

Machine-learning accelerated density-explicit polymer field theory simulations.

The Journal of chemical physics·2026
Same author

Molecular understanding of ion transport in a zwitterionic electrolyte.

The Journal of chemical physics·2025
Same author

Coherent state field theory: A tool for inhomogeneous polymer dynamics and rheology.

The Journal of chemical physics·2025
Same author

Molecularly informed field-theoretic models of confined fluids.

The Journal of chemical physics·2025
Same author

Preserving positivity in density-explicit field-theoretic simulations.

The Journal of chemical physics·2024
Same author

Accelerated Prediction of Phase Behavior for Block Copolymer Libraries Using a Molecularly Informed Field Theory.

Journal of the American Chemical Society·2024
Same journal

Revisiting crossed-correlated baths in open quantum systems simulated by HEOM or T-TEDOPA.

The Journal of chemical physics·2026
Same journal

Vesicle size and membrane composition control monomer transfer pathways in multicomponent lipid vesicles.

The Journal of chemical physics·2026
Same journal

Polaron-mediated exciton dynamics of P(NDI2OD-T2) unveiled by transient absorption spectroscopy under electrochemical conditions.

The Journal of chemical physics·2026
Same journal

Green-Kubo relation in a mesoscale odd fluid model.

The Journal of chemical physics·2026
Same journal

Nitrogenation of microscopic MoS2 surfaces by oxidation scanning probe lithography.

The Journal of chemical physics·2026
Same journal

Molecular structure, binding, and disorder in TDBC-Ag plexcitonic assemblies.

The Journal of chemical physics·2026
查看所有相关文章

相关实验视频

Updated: May 16, 2025

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics
10:52

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics

Published on: April 12, 2019

12.7K

对多组件系统进行高效的动态场理论模拟.

Timothy Quah1, Christopher Balzer2, Kris T Delaney2

  • 1Department of Chemical Engineering, University of California, Santa Barbara, California 93106, USA.

The Journal of chemical physics
|April 1, 2025
PubMed
概括
此摘要是机器生成的。

本研究引入了一个增强的外部潜力动力学 (EPD) 框架,用于高效的模拟多元组件聚合物系统. 新方法准确地捕捉了相隔动态和聚合物材料中热波动的作用.

更多相关视频

Author Spotlight: Advancing Cell Membrane Biophysics - Exploring Interactions and Challenges Through Experimental and Computational Approaches
07:31

Author Spotlight: Advancing Cell Membrane Biophysics - Exploring Interactions and Challenges Through Experimental and Computational Approaches

Published on: September 1, 2023

2.0K
Analyzing Melts and Fluids from Ab Initio Molecular Dynamics Simulations with the UMD Package
06:37

Analyzing Melts and Fluids from Ab Initio Molecular Dynamics Simulations with the UMD Package

Published on: September 17, 2021

4.4K

相关实验视频

Last Updated: May 16, 2025

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics
10:52

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics

Published on: April 12, 2019

12.7K
Author Spotlight: Advancing Cell Membrane Biophysics - Exploring Interactions and Challenges Through Experimental and Computational Approaches
07:31

Author Spotlight: Advancing Cell Membrane Biophysics - Exploring Interactions and Challenges Through Experimental and Computational Approaches

Published on: September 1, 2023

2.0K
Analyzing Melts and Fluids from Ab Initio Molecular Dynamics Simulations with the UMD Package
06:37

Analyzing Melts and Fluids from Ab Initio Molecular Dynamics Simulations with the UMD Package

Published on: September 17, 2021

4.4K

科学领域:

  • 聚合物科学 聚合物科学
  • 计算材料科学科学 计算材料科学
  • 软物质物理学 软物质物理学

背景情况:

  • 了解多组分聚合物相位行为对于材料设计至关重要.
  • 现有的非平衡聚合物动态的计算方法,如动态自相一致场理论 (DSCFT),在计算上昂贵,并与热波动作斗争.
  • 外部潜力动力学 (EPD) 为模拟不均聚合物脱离平衡提供了更有效的替代方案.

研究的目的:

  • 开发一个扩展的外部潜力动力学 (EPD) 框架,用于高效和稳定的模拟多种多元组合聚合物系统.
  • 将热力学一致的噪声纳入EPD方法,以准确建模热波动.
  • 验证增强的EPD框架能够捕捉聚合物相位分离和域增长的关键特征.

主要方法:

  • 扩展外部潜力动力学 (EPD) 方法以处理多种多组分聚合物系统.
  • 包括热力学一致的噪声来表示热波动.
  • 模拟一个triblock共聚合物和spinodally分解二元和三元聚合物混合物的模拟.

主要成果:

  • 增强的EPD框架成功模拟了高效率和稳定的多元组件聚合物系统.
  • 模拟准确地捕获了基本相位分离现象和域增长动力学.
  • 该研究强调了热波动在聚合物混合物粗化早期的重要作用.

结论:

  • 开发的EPD框架提供了一个强大的和可扩展的计算工具,用于研究多元组件聚合物材料的复杂动态.
  • 这种方法提供了关于聚合物流体演变的随机 (波动) 和决定性效应之间的相互作用的宝贵见解.
  • 这些发现提升了基于高分子的先进材料的设计和模拟能力.