• Thumbnail for Structural equation modeling
    Structural equation modeling (SEM) is a diverse set of methods used by scientists for both observational and experimental research. SEM is used mostly...
    84 KB (10,236 words) - 23:13, 15 November 2024
  • Equation-free modeling is a method for multiscale computation and computer-aided analysis. It is designed for a class of complicated systems in which one...
    22 KB (3,317 words) - 22:23, 16 September 2023
  • Thumbnail for Turbulence modeling
    In fluid dynamics, turbulence modeling is the construction and use of a mathematical model to predict the effects of turbulence. Turbulent flows are commonplace...
    16 KB (2,076 words) - 16:08, 11 July 2024
  • Thumbnail for Shallow water equations
    not necessarily, a free surface). The shallow-water equations in unidirectional form are also called (de) Saint-Venant equations, after Adhémar Jean...
    37 KB (4,768 words) - 13:53, 28 October 2024
  • Lotka–Volterra equations, also known as the Lotka–Volterra predator–prey model, are a pair of first-order nonlinear differential equations, frequently used...
    33 KB (4,335 words) - 17:32, 2 October 2024
  • explicit equation-based modeling problematic. Empirical models, which infer patterns and associations from the data instead of using hypothesized equations, represent...
    21 KB (2,589 words) - 18:56, 13 May 2024
  • The sine-Gordon equation is a second-order nonlinear partial differential equation for a function φ {\displaystyle \varphi } dependent on two variables...
    33 KB (4,705 words) - 07:49, 14 June 2024
  • Thumbnail for Heat equation
    functions. The theory of the heat equation was first developed by Joseph Fourier in 1822 for the purpose of modeling how a quantity such as heat diffuses...
    58 KB (9,839 words) - 01:00, 15 November 2024
  • Thumbnail for Multiscale modeling
    theory Continuum modeling Discrete modeling Network-based modeling Statistical modeling Computational mechanics Equation-free modeling Integrated computational...
    20 KB (2,308 words) - 23:46, 30 June 2024
  • Thumbnail for Navier–Stokes equations
    when modeling turbulent flows. Some models include the Spalart–Allmaras, k–ω, k–ε, and SST models, which add a variety of additional equations to bring...
    97 KB (15,355 words) - 05:59, 25 October 2024
  • Thumbnail for Logistic function
    or logistic curve is a common S-shaped curve (sigmoid curve) with the equation f ( x ) = L 1 + e − k ( x − x 0 ) {\displaystyle f(x)={\frac {L}{1+e^{-k(x-x_{0})}}}}...
    54 KB (7,722 words) - 03:23, 18 November 2024
  • conduits can be modeled by the Colebrook–White equation. The last formula in the Colebrook equation section of this article is for free surface flow. The...
    36 KB (4,226 words) - 06:11, 25 October 2024
  • Thumbnail for Reaction–diffusion system
    Turing pattern Multi-state modeling of biomolecules Fisher's equation Zeldovich–Frank-Kamenetskii equation FitzHugh–Nagumo model Wrinkle paint Wooley, T...
    29 KB (3,601 words) - 12:23, 4 September 2024
  • field equations (EFE; also known as Einstein's equations) relate the geometry of spacetime to the distribution of matter within it. The equations were...
    34 KB (5,099 words) - 19:57, 21 November 2024
  • Thumbnail for Equation of state
    temperature, or internal energy. Most modern equations of state are formulated in the Helmholtz free energy. Equations of state are useful in describing the...
    38 KB (5,399 words) - 08:58, 11 November 2024
  • Thumbnail for Modelica
    is an object-oriented, declarative, multi-domain modeling language for component-oriented modeling of complex systems, e.g., systems containing mechanical...
    25 KB (2,620 words) - 15:12, 19 October 2023
  • Latent growth modeling is a statistical technique used in the structural equation modeling (SEM) framework to estimate growth trajectories. It is a longitudinal...
    5 KB (676 words) - 16:08, 10 May 2024
  • 1214/aoms/1177732676. Ωnyx, a free software environment for Structural Equation Modeling OpenMx - Advanced Structural Equation Modeling LISREL: model, methods and software...
    7 KB (971 words) - 13:36, 24 July 2024
  • account in the free electron model.[citation needed] Many physical properties follow directly from the Drude model, as some equations do not depend on...
    24 KB (3,412 words) - 13:34, 19 November 2024
  • The Schrödinger equation is a partial differential equation that governs the wave function of a non-relativistic quantum-mechanical system.: 1–2  Its...
    74 KB (10,231 words) - 22:06, 19 November 2024
  • Thumbnail for System of linear equations
    In mathematics, a system of linear equations (or linear system) is a collection of two or more linear equations involving the same variables. For example...
    36 KB (5,571 words) - 13:44, 25 September 2024
  • instruments. From the parabolic partial differential equation in the model, known as the Black–Scholes equation, one can deduce the Black–Scholes formula, which...
    65 KB (9,573 words) - 14:21, 12 November 2024
  • credited with modeling Brownian motion in 1900, giving a very early example of a stochastic differential equation now known as Bachelier model. Some of these...
    36 KB (5,616 words) - 15:19, 12 July 2024
  • Reynolds stress equation model (RSM), also referred to as second moment closures are the most complete classical turbulence model. In these models, the eddy-viscosity...
    18 KB (2,883 words) - 13:32, 5 March 2024
  • In physics, a Langevin equation (named after Paul Langevin) is a stochastic differential equation describing how a system evolves when subjected to a combination...
    30 KB (5,214 words) - 12:54, 1 November 2024
  • Thumbnail for Poisson's equation
    Poisson's equation is an elliptic partial differential equation of broad utility in theoretical physics. For example, the solution to Poisson's equation is the...
    17 KB (2,372 words) - 18:44, 22 November 2024
  • Thumbnail for Gibbs free energy
    Enthalpy-entropy compensation Free entropy Gibbs–Helmholtz equation Grand potential Non-random two-liquid model (NRTL model) – Gibbs energy of excess and...
    33 KB (4,546 words) - 23:14, 9 November 2024
  • an unincorporated hamlet Streeter (surname) Streeter-Phelps equation, a water-modeling tool Streeterville, a waterfront neighborhood in Chicago, Illinois...
    454 bytes (85 words) - 13:35, 10 March 2023
  • Thumbnail for Langmuir adsorption model
    in their bound and free states to be included. The thermodynamic derivation is usually referred to as the "Langmuir-like equation". This derivation based...
    29 KB (4,973 words) - 11:50, 1 November 2024
  • Klein–Gordon equation (Klein–Fock–Gordon equation or sometimes Klein–Gordon–Fock equation) is a relativistic wave equation, related to the Schrödinger equation. It...
    38 KB (6,552 words) - 19:31, 21 November 2024