介面流体的神经网络辅助模型具有明确的粗粒度分子结构
Shuhao Ma1, Dechang Li1, Xuejin Li1
1Department of Engineering Mechanics, Zhejiang University, Hangzhou 310027, People's Republic of China.
The Journal of chemical physics
|November 4, 2024
概括
我们使用机器学习开发了一种用于界面流体的新粗粒度 (CG) 模型. 这种强大的模型准确地捕捉了复杂的相互作用和特性,推进了接口系统的多尺度模拟.
科学领域:
- 计算化学是一种计算化学.
- 材料科学是一种材料科学.
- 生物物理学的生物物理.
背景情况:
- 接口流体是复杂的,表现出非线性,多相和多组件的行为.
- 由于复杂的多体相互作用和界面现象,开发准确的粗粒度 (CG) 模型具有挑战性.
- 现有的模型很难捕捉到不同的密度分布和界面上的波动.
研究的目的:
- 为界面流体构建一个强大的粗粒度 (CG) 模型.
- 通过先进的机器学习,有效捕捉多体相互作用和接口属性.
- 为了验证模型在不同CG绘图策略和模拟设置中的有效性.
主要方法:
- 利用先进的机器学习技术,包括力匹配和扩散概率模型.
- 开发了一种新的粗粒度 (CG) 模型,用于模拟接口流体系统.
- 通过对水-空气接口,散装甲和脂质膜的模拟来评估模型.
主要成果:
- 开发的CG模型准确地复制了必不可少的多体和接口属性.
- 该模型证明了各种CG绘图策略的有效性.
- 模拟验证了模型在各种界面流体系统中的能力.
结论:
- 基于先进机器学习的CG模型是模拟界面流体的强大工具.
- 这项工作验证了该模型对多尺度模拟的实用性.
- 该研究为模拟复杂接口系统的未来进展提供了基础.
相关概念视频
The Fluid Mosaic Model
145.5K
The fluid mosaic model was first proposed as a visual representation of research observations. The model comprises the composition and dynamics of membranes and serves as a foundation for future membrane-related studies. The model depicts the structure of the plasma membrane with a variety of components, which include phospholipids, proteins, and carbohydrates. These integral molecules are loosely bound, defining the cell’s border and providing fluidity for optimal function.
145.5K
Intermolecular Forces
57.7K
Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen...
57.7K
Typical Model Studies
340
Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
340
Membrane Fluidity
151.3K
Cell membranes are composed of phospholipids, proteins, and carbohydrates loosely attached to one another through chemical interactions. Molecules are generally able to move about in the plane of the membrane, giving the membrane its flexible nature called fluidity. Two other features of the membrane contribute to membrane fluidity: the chemical structure of the phospholipids and the presence of cholesterol in the membrane.
151.3K
Fluid Mosaic Model
11.5K
Scientists identified the plasma membrane in the 1890s and its principal chemical components (lipids and proteins) by 1915. The model for plasma membrane structure, proposed in 1935 by Hugh Davson and James Danielli, was the first model to be widely accepted in the scientific community. The model was based on the plasma membrane's "railroad track" appearance in early electron micrographs. Davson and Danielli theorized that the plasma membrane's structure resembled a sandwich...
11.5K


