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Steady, Laminar Flow Between Parallel Plates01:17

Steady, Laminar Flow Between Parallel Plates

355
Understanding steady, laminar flow between parallel plates is essential for analyzing and designing flow in narrow rectangular channels, commonly found in various water conveyance and drainage systems. The Navier-Stokes equations govern fluid motion and are generally challenging to solve due to their nonlinearity. However, simplifications are possible in certain cases, like the steady laminar flow between parallel plates. For this scenario, we assume steady, incompressible, laminar flow.
355

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在一个封闭的环境中,活性液-液相分离.

Chen Lin1,2,3, Robijn Bruinsma4

  • 1University of California, Los Angeles, Department of Chemistry and Biochemistry, California 90095, USA.

Physical review. E
|June 19, 2025
PubMed
概括
此摘要是机器生成的。

在狭窄的空间中,活性液体-液体相隔离 (LLPS) 可以打破细节平衡. 引入滴滴位置作为第二个坐标显示活跃噪声抑制系统动态不对称.

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科学领域:

  • 细胞生物学 细胞生物学
  • 生物物理学的生物物理.
  • 统计力学就是统计力学.

背景情况:

  • 液-液相分离 (LLPS) 在细胞过程中至关重要.
  • 在封闭的环境中,LLPS可能会消耗自由能量,可能违反详细平衡原则 (PDB).
  • 之前的模型表明,如果仅考虑滴滴半径作为集体坐标,PDB就会在宏观上保持.

研究的目的:

  • 在一个封闭的环境中研究活跃的LLPS,将滴滴位置作为第二个集体坐标.
  • 分析主动噪声对详细平衡原理的宏观影响.
  • 探索限制潜力在活性相隔动态中的作用.

主要方法:

  • 开发一个简单的模型,在有限的潜力范围内为活跃的LLPS开发.
  • 将滴滴位置作为第二个集体坐标与滴滴半径一起包含.
  • 作为诊断工具应用波动-消散定理的应用.

主要成果:

  • 在这种模型中,活跃的LLPS在宏观层面上打破了详细平衡原则.
  • 活动噪声不对称地抑制了线性易感性.
  • 活动噪声还以一种不寻常的方式抑制了准临界热噪声谱.

结论:

  • 在被限制的活跃LLPS中,当考虑多个集体坐标时,PDB的宏观违规是可能的.
  • 活动噪声为相分离过程引入了新的,不对称的动态.
  • 这项工作为活跃生物系统的热力学和统计力学提供了新的见解.