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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.
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]
The RC time constant, denoted τ (lowercase tau), the time constant (in seconds) of a resistor–capacitor circuit (RC circuit), is equal to the product of the circuit resistance (in ohms) and the circuit capacitance (in farads):
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 ...
The exponential time-constant for the process is =, so the half-life is (). The same equations can be applied to the dual of current in an inductor. Furthermore, the particular case of a capacitor or inductor changing through several parallel resistors makes an interesting example of multiple decay processes, with each resistor representing ...
A bolometer consists of an absorptive element, such as a thin layer of metal, connected to a thermal reservoir (a body of constant temperature) through a thermal link. The result is that any radiation impinging on the absorptive element raises its temperature above that of the reservoir – the greater the absorbed power, the higher the ...
The transverse (or spin-spin) relaxation time T 2 is the decay constant for the component of M perpendicular to B 0, designated M xy, M T, or . For instance, initial xy magnetization at time zero will decay to zero (i.e. equilibrium) as follows:
F is the Faraday constant; A is the area of the planar electrode in cm 2; C 0 is the initial concentration of the analyte in mol/cm 3; D is the diffusion coefficient for species in cm 2 /s; t is the time in seconds. Under controlled-diffusion circumstances, the current-time plot reflects the concentration gradient of the solution near the ...