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ブラウン運動

7 件の記事

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ストカスティック(確率論的)プロセスの概念と多角的な応用

ストカスティック確率論ランダムプロセスモンテカルロ法
2-dimensional random walk of a silver adatom on an Ag(111) surface[1]

ブラウン運動微小粒子の不規則な舞いと原子の証明

ブラウン運動アインシュタインウィーナー過程拡散方程式
A computer-simulated realization of a Wiener or Brownian motion process on the surface of a sphere. The Wiener process is widely considered the most studied and central stochastic process in probability theory.[1][2][3]

確率過程ランダムな変動を数学的に捉える理論と応用

確率過程ウィーナー過程ブラウン運動マルコフ連鎖
The temperature of the ideal gas is proportional to the average kinetic energy of its particles. The size of helium atoms relative to their spacing is shown to scale under 1,950 atmospheres of pressure. The atoms have an average speed relative to their size slowed down here two trillion fold from that at room temperature.

気体分子運動論ミクロな粒子の動きから解き明かす熱力学の正体

気体分子運動論理想気体熱力学マックスウェル・ボルツマン分布
A basic diagram of a fluorescence correlation spectroscopy instrument.

蛍光相関分光法(FCS)による分子ダイナミクスの精密解析

蛍光相関分光法FCSブラウン運動拡散係数
Suspended particulates indicate the movement of the surrounding gas.

気体の性質と物理学的メカニズム理想気体から実在気体まで

気体理想気体実在気体状態方程式
Molecular diffusion from a microscopic and macroscopic point of view. Initially, there are solute molecules on the left side of a barrier (purple line) and none on the right. The barrier is removed, and the solute diffuses to fill the whole container. Top: A single molecule moves around randomly. Middle: With more molecules, there is a clear trend where the solute fills the container more and more uniformly. Bottom: With an enormous number of solute molecules, randomness becomes undetectable: The solute appears to move smoothly and systematically from high-concentration areas to low-concentration areas. This smooth flow is described by Fick's laws.

フィックの拡散法則物質移動のメカニズムと科学的応用

フィックの法則拡散係数濃度勾配ブラウン運動