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  2. Steady-state model - Wikipedia

    en.wikipedia.org/wiki/Steady-state_model

    In cosmology, the steady-state model or steady state theory is an alternative to the Big Bang theory. In the steady-state model, the density of matter in the expanding universe remains unchanged due to a continuous creation of matter, thus adhering to the perfect cosmological principle , a principle that says that the observable universe is ...

  3. Steady state - Wikipedia

    en.wikipedia.org/wiki/Steady_state

    Steady state determination is an important topic, because many design specifications of electronic systems are given in terms of the steady-state characteristics. Periodic steady-state solution is also a prerequisite for small signal dynamic modeling. Steady-state analysis is therefore an indispensable component of the design process.

  4. Steady State theory - Wikipedia

    en.wikipedia.org/?title=Steady_State_theory&...

    Retrieved from "https://en.wikipedia.org/w/index.php?title=Steady_State_theory&oldid=891817101"

  5. Mathematical model - Wikipedia

    en.wikipedia.org/wiki/Mathematical_model

    A dynamic model accounts for time-dependent changes in the state of the system, while a static (or steady-state) model calculates the system in equilibrium, and thus is time-invariant. Dynamic models typically are represented by differential equations or difference equations .

  6. Hermann Bondi - Wikipedia

    en.wikipedia.org/wiki/Hermann_Bondi

    Sir Hermann Bondi KCB FRS [1] (1 November 1919 – 10 September 2005) [7] was an Austrian-British mathematician and cosmologist.. He is best known for developing the steady state model of the universe with Fred Hoyle and Thomas Gold as an alternative to the Big Bang theory.

  7. Steady-state economy - Wikipedia

    en.wikipedia.org/wiki/Steady-state_economy

    A steady-state economy is not to be confused with economic stagnation: Whereas a steady-state economy is established as the result of deliberate political action, economic stagnation is the unexpected and unwelcome failure of a growth economy. An ideological contrast to the steady-state economy is formed by the concept of a post-scarcity economy.

  8. Soil mechanics - Wikipedia

    en.wikipedia.org/wiki/Soil_mechanics

    The steady-state values are also very slightly dependent on the strain-rate. Many systems in nature reach steady states, and dynamical systems theory describes such systems. Soil shear can also be described as a dynamical system. [28] [29] The physical basis of the soil shear dynamical system is a Poisson process in which particles move to the ...

  9. Steady state (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Steady_state_(chemistry)

    The steady state approximation, [1] occasionally called the stationary-state approximation or Bodenstein's quasi-steady state approximation, involves setting the rate of change of a reaction intermediate in a reaction mechanism equal to zero so that the kinetic equations can be simplified by setting the rate of formation of the intermediate equal to the rate of its destruction.