DIY Life Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Dirac delta function - Wikipedia

    en.wikipedia.org/wiki/Dirac_delta_function

    In mathematical analysis, the Dirac delta function (or δ distribution), also known as the unit impulse, [1] is a generalized function on the real numbers, whose value is zero everywhere except at zero, and whose integral over the entire real line is equal to one.

  3. Enthalpy of fusion - Wikipedia

    en.wikipedia.org/wiki/Enthalpy_of_fusion

    Enthalpies of melting and boiling for pure elements versus temperatures of transition, demonstrating Trouton's rule. In thermodynamics, the enthalpy of fusion of a substance, also known as (latent) heat of fusion, is the change in its enthalpy resulting from providing energy, typically heat, to a specific quantity of the substance to change its state from a solid to a liquid, at constant pressure.

  4. STC Delta - Wikipedia

    en.wikipedia.org/wiki/STC_Delta

    The State Military Scientific-Technical Center "DELTA" (SMSTC Delta) (Georgian: სახელმწიფო სამხედრო სამეცნიერო-ტექნიკური ცენტრი „დელტა“) is a legal entity of public law established by the decree of the President of Georgia.

  5. Crack growth equation - Wikipedia

    en.wikipedia.org/wiki/Crack_growth_equation

    Figure 1 shows a typical plot of the rate of crack growth as a function of the alternating stress intensity or crack tip driving force plotted on log scales. The crack growth rate behaviour with respect to the alternating stress intensity can be explained in different regimes (see, figure 1) as follows

  6. P-delta effect - Wikipedia

    en.wikipedia.org/wiki/P-Delta_Effect

    P-delta is a moment found by multiplying the force due to the weight of the structure and applied axial load, P, by the first-order deflection, Δ or δ. NUMERICAL EXAMPLE OF P DELTA EFFECT ON A CALCULATOR You have a 1 meter tall rigid vertical rod that rotates on a hinge at the bottom of the rod. There is a 1 newton load on the top of the rod.

  7. Heat equation - Wikipedia

    en.wikipedia.org/wiki/Heat_equation

    In mathematics, if given an open subset U of R n and a subinterval I of R, one says that a function u : U × I → R is a solution of the heat equation if = + +, where (x 1, …, x n, t) denotes a general point of the domain.

  8. Adiabatic process - Wikipedia

    en.wikipedia.org/wiki/Adiabatic_process

    The first limb is an isochoric adiabatic work process increasing the system's internal energy; the second, an isochoric and workless heat transfer returning the system to its original state. Accordingly, Rankine measured quantity of heat in units of work, rather than as a calorimetric quantity. [ 17 ]

  9. Spontaneous process - Wikipedia

    en.wikipedia.org/wiki/Spontaneous_process

    In thermodynamics, a spontaneous process is a process which occurs without any external input to the system. A more technical definition is the time-evolution of a system in which it releases free energy and it moves to a lower, more thermodynamically stable energy state (closer to thermodynamic equilibrium).