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  2. Time constant - Wikipedia

    en.wikipedia.org/wiki/Time_constant

    This means that the time constant is the time elapsed after 63% of V max has been reached Setting for t = for the fall sets V(t) equal to 0.37V max, meaning that the time constant is the time elapsed after it has fallen to 37% of V max. The larger a time constant is, the slower the rise or fall of the potential of a neuron.

  3. Temperature jump - Wikipedia

    en.wikipedia.org/wiki/Temperature_Jump

    where R is the universal gas constant and T is the absolute temperature. When a single step in a reaction is perturbed in a temperature jump experiment, the reaction follows a single exponential decay function with time constant equal to a function of the forward (k a) and reverse (k b) rate constants.

  4. Thermistor - Wikipedia

    en.wikipedia.org/wiki/Thermistor

    A thermistor is a semiconductor type of ... of the dissipation constant. For example, the thermistor may be used as a flow-rate sensor, since the dissipation constant ...

  5. Relaxation (physics) - Wikipedia

    en.wikipedia.org/wiki/Relaxation_(physics)

    The relaxation time is a measure of the time it takes for one object in the system (the "test star") to be significantly perturbed by other objects in the system (the "field stars"). It is most commonly defined as the time for the test star's velocity to change by of order itself. [6] Suppose that the test star has velocity v.

  6. General time- and transfer constant analysis - Wikipedia

    en.wikipedia.org/wiki/General_time-_and_transfer...

    The general time- and transfer-constants (TTC) analysis [1] is the generalized version of the Cochran-Grabel (CG) method, [2] which itself is the generalized version of zero-value time-constants (ZVT), which in turn is the generalization of the open-circuit time constant method (OCT). [3]

  7. Thermodynamic diagrams - Wikipedia

    en.wikipedia.org/wiki/Thermodynamic_diagrams

    If the gas is heated so that the temperature of the gas goes up to T 2 while the piston is allowed to rise to V 2 as in Figure 1, then the pressure is kept the same in this process due to the free floating piston being allowed to rise making the process an isobaric process or constant pressure process. This Process Path is a straight horizontal ...

  8. Cooling curve - Wikipedia

    en.wikipedia.org/wiki/Cooling_curve

    A cooling curve is a line graph that represents the change of phase of matter, typically from a gas to a solid or a liquid to a solid. The independent variable (X-axis) is time and the dependent variable (Y-axis) is temperature. [1] Below is an example of a cooling curve used in castings.

  9. Johnson–Nyquist noise - Wikipedia

    en.wikipedia.org/wiki/Johnson–Nyquist_noise

    Dividing the average energy transferred from each resistor to the line by the transit time interval results in a total power of transferred over bandwidth on average from each resistor. Nyquist's 1928 paper "Thermal Agitation of Electric Charge in Conductors" [ 6 ] used concepts about potential energy and harmonic oscillators from the ...