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  2. Ziegler–Nichols method - Wikipedia

    en.wikipedia.org/wiki/Ziegler–Nichols_method

    The Ziegler–Nichols tuning method is a heuristic method of tuning a PID controller. It was developed by John G. Ziegler and Nathaniel B. Nichols . It is performed by setting the I (integral) and D (derivative) gains to zero.

  3. Quarter-wave impedance transformer - Wikipedia

    en.wikipedia.org/wiki/Quarter-wave_impedance...

    Using a transmission line as an impedance transformer. A quarter-wave impedance transformer, often written as λ/4 impedance transformer, is a transmission line or waveguide used in electrical engineering of length one-quarter wavelength (λ), terminated with some known impedance.

  4. Maximum brake torque - Wikipedia

    en.wikipedia.org/wiki/Maximum_brake_torque

    Maximum brake torque (MBT) is the use of optimal ignition timing to take advantage of an internal combustion engine's maximum power and efficiency.. There is always an optimal spark timing for all operating conditions of an engine.

  5. Chebyshev lambda linkage - Wikipedia

    en.wikipedia.org/wiki/Chebyshev_Lambda_Linkage

    The Chebyshev Lambda Linkage is used in vehicle suspension mechanisms, walking robots, and rover wheel mechanisms. In 2004, a study completed as a Master of Science Thesis at Izmir Institute of Technology introduced a new mechanism design by combining two symmetrical Lambda linkages to distribute the force evenly on to ground with providing the ...

  6. Pollard's kangaroo algorithm - Wikipedia

    en.wikipedia.org/wiki/Pollard's_kangaroo_algorithm

    In computational number theory and computational algebra, Pollard's kangaroo algorithm (also Pollard's lambda algorithm, see Naming below) is an algorithm for solving the discrete logarithm problem. The algorithm was introduced in 1978 by the number theorist John M. Pollard , in the same paper as his better-known Pollard's rho algorithm for ...

  7. de Bruijn index - Wikipedia

    en.wikipedia.org/wiki/De_Bruijn_index

    In mathematical logic, the de Bruijn index is a tool invented by the Dutch mathematician Nicolaas Govert de Bruijn for representing terms of lambda calculus without naming the bound variables. [1] Terms written using these indices are invariant with respect to α-conversion, so the check for α-equivalence is the same as that for syntactic ...

  8. Smoothing spline - Wikipedia

    en.wikipedia.org/wiki/Smoothing_spline

    Smoothing splines are function estimates, ^ (), obtained from a set of noisy observations of the target (), in order to balance a measure of goodness of fit of ^ to with a derivative based measure of the smoothness of ^ ().

  9. Plasma parameter - Wikipedia

    en.wikipedia.org/wiki/Plasma_parameter

    One of the criteria which determine whether a collection of charged particles can rigorously be termed an ideal plasma is that Λ ≫ 1.When this is the case, collective electrostatic interactions dominate over binary collisions, and the plasma particles can be treated as if they only interact with a smooth background field, rather than through pairwise interactions (collisions). [3]