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  2. Bang–bang control - Wikipedia

    en.wikipedia.org/wiki/Bang–bang_control

    Symbol for a bang–bang control. In control theory, a bang–bang controller (hysteresis, 2 step or on–off controller), is a feedback controller that switches abruptly between two states. These controllers may be realized in terms of any element that provides hysteresis. They are often used to control a plant that accepts a binary input, for ...

  3. Proportional–integral–derivative controller - Wikipedia

    en.wikipedia.org/wiki/Proportional–integral...

    His goal was stability, not general control, which simplified the problem significantly. While proportional control provided stability against small disturbances, it was insufficient for dealing with a steady disturbance, notably a stiff gale (due to steady-state error), which required adding the integral term. Finally, the derivative term was ...

  4. Heating, ventilation, and air conditioning - Wikipedia

    en.wikipedia.org/wiki/Heating,_ventilation,_and...

    Heat pumps transfer heat from outside the structure into the air inside. Initially, heat pump HVAC systems were only used in moderate climates, but with improvements in low temperature operation and reduced loads due to more efficient homes, they are increasing in popularity in cooler climates. They can also operate in reverse to cool an interior.

  5. Optimal control - Wikipedia

    en.wikipedia.org/wiki/Optimal_control

    Optimal control problem benchmark (Luus) with an integral objective, inequality, and differential constraint. Optimal control theory is a branch of control theory that deals with finding a control for a dynamical system over a period of time such that an objective function is optimized. [1]

  6. Model predictive control - Wikipedia

    en.wikipedia.org/wiki/Model_predictive_control

    Model predictive control (MPC) is an advanced method of process control that is used to control a process while satisfying a set of constraints. It has been in use in the process industries in chemical plants and oil refineries since the 1980s.

  7. Cathode-ray tube - Wikipedia

    en.wikipedia.org/wiki/Cathode-ray_tube

    In 1926, Kenjiro Takayanagi demonstrated a CRT TV receiver with a mechanical video camera that received images with a 40-line resolution. [22] By 1927, he improved the resolution to 100 lines, which was unrivaled until 1931. [23] By 1928, he was the first to transmit human faces in half-tones on a CRT display. [24]

  8. List of films with post-credits scenes - Wikipedia

    en.wikipedia.org/wiki/List_of_films_with_post...

    During the mid-credits scene, Jack views YouTube videos of Greg publicly mocking Jack during a speech promoting Sustengo. Orange: Ram and Jaanu end up together when the credits are rolling. Resident Evil: Afterlife: In an aircraft above Arcadia, Jill Valentine is dictating the attack while wearing a mind control device. The Last Airbender

  9. The Red Green Show - Wikipedia

    en.wikipedia.org/wiki/The_Red_Green_Show

    The Red Green Show was a half-hour Canadian television comedy program that aired on various channels in Canada from April 4, 1991 until April 7, 2006. During its fifteen seasons, it had six network homes, but its longest run was with its final network, CBC Television.