The Ehrenfest model (or dog–flea model) of diffusion was proposed by Tatiana and Paul Ehrenfest to explain the second law of thermodynamics. The model considers...

Paul Ehrenfest (German: [ˈpaʊl ˈeːʁənˌfɛst]; 18 January 1880 – 25 September 1933) was an Austrian theoretical physicist who made major contributions to...

decisions aimed at enhancing performance and reducing wait times. Ehrenfest model Erlang unit Line management Network simulation Project production management...

mathematician Ehrenfest equations Ehrenfest model Ehrenfest paradox Ehrenfest theorem 32796 Ehrenfest Tatjana Ehrenfest-Afanassjewa (1876-1964), Ukrainian-Russian...

The Ising model (or Lenz–Ising model), named after the physicists Ernst Ising and Wilhelm Lenz, is a mathematical model of ferromagnetism in statistical...

Iglehart, Donald L. (June 1968). "Limit Theorems for the Multi-urn Ehrenfest Model". The Annals of Mathematical Statistics. 39 (3): 864–876. doi:10.1214/aoms/1177698318...

The Ehrenfest paradox concerns the rotation of a "rigid" disc in the theory of relativity. In its original 1909 formulation as presented by Paul Ehrenfest...

The Ehrenfest theorem, named after Austrian theoretical physicist Paul Ehrenfest, relates the time derivative of the expectation values of the position...

Edgeworth series Effect size Efficiency (statistics) Efficient estimator Ehrenfest model Elastic map Elliptical distribution Ellsberg paradox Elston–Stewart...

displaying short descriptions of redirect targets Ehrenfest equations Ising Model – Mathematical model of ferromagnetism in statistical mechanicsPages displaying...

Homo heidelbergensis (Mauer 1) found. The Ehrenfest model of diffusion is proposed by Tatiana and Paul Ehrenfest to explain the second law of thermodynamics...

In thermodynamics and solid-state physics, the Debye model is a method developed by Peter Debye in 1912 to estimate phonon contribution to the specific...

proving that in the Ehrenfest model (a mathematical abstraction of billiards with an infinite array of rectangular obstacles, used to model gas diffusion)...

The Timoshenko–Ehrenfest beam theory was developed by Stephen Timoshenko and Paul Ehrenfest early in the 20th century. The model takes into account shear...

The Sznajd model or United we stand, divided we fall (USDF) model is a sociophysics model introduced in 2000 to gain fundamental understanding about opinion...

). The original Russian manuscript of this paper is preserved in the Ehrenfest archive. Friedmann, A (1924). "Über die Möglichkeit einer Welt mit konstanter...

The Bohr–Sommerfeld model (also known as the Sommerfeld model or Bohr–Sommerfeld theory) was an extension of the Bohr model to allow elliptical orbits...

deviation from the ensemble averaged behavior. Ehrenfest model Luczak, Joshua (2017). "Talk about toy models". Studies in History and Philosophy of Science...

rigid bodies into SR. However, Paul Ehrenfest (1909) showed that Born's concept leads to the so-called Ehrenfest paradox, in which, due to length contraction...

The Einstein solid is a model of a crystalline solid that contains a large number of independent three-dimensional quantum harmonic oscillators of the...

values satisfy the Ehrenfest theorem. For a one-dimensional quantum particle moving in a potential V {\displaystyle V} , the Ehrenfest theorem says m d...

between electrons and magnetic fields. When he arrived in Leiden, Paul Ehrenfest and Albert Einstein informed Bohr that Einstein had resolved this problem...

Other early uses of Markov chains include a diffusion model, introduced by Paul and Tatyana Ehrenfest in 1907, and a branching process, introduced by Francis...

He studied theoretical physics at the University of Leiden under Paul Ehrenfest, where he received his Ph.D. in 1931. His Ph.D. thesis dealt with the...

correspondence that breaks down at the Ehrenfest time, which is inversely proportional to N {\displaystyle N} . The Dicke model provides an ideal system to study...

deformation and rotatory inertia, it is thus a special case of Timoshenko–Ehrenfest beam theory. It was first enunciated circa 1750, but was not applied on...

Timoshenko-Ehrenfest beam model”, Journal of Vibration and Acoustics, article 060301 Elishakoff I. (2022) “Did S.P. Timoshenko and P. Ehrenfest overestimate...

Objective-collapse theories, also known spontaneous collapse models or dynamical reduction models, are proposed solutions to the measurement problem in quantum...

according to the Larmor formula emit electromagnetic waves. In 1910 Paul Ehrenfest published a short paper on "Irregular electrical movements without magnetic...

Bohr model to Hydrogen, and numerous other reasons, lead to an entirely new mathematical model of matter and light: quantum mechanics. Early models to explain...