transfer constant

transfer constant

[′tranz·fər ‚kän·stənt]
(engineering)
A transducer rating, equal to one-half the natural logarithm of the complex ratio of the product of the voltage and current entering a transducer to that leaving the transducer when the latter is terminated in its image impedance; alternatively, the product may be that of force and velocity or pressure and volume velocity; the real part of the transfer constant is the image attenuation constant, and the imaginary part is the image phase constant. Also known as transfer factor.
References in periodicals archive ?
The current method allows for such modeling, but we chose to hold heat transfer constant in this set of cases.
Three quantitative parameters obtained from DCE-MRI: [K.sup.trans] ([min.sup.-1]), transfer constant; [K.sub.ep] ([min.sup.-1]), efflux rate constant; and [V.sub.e], ratio of extracellular-extravascular space volume to tissue volume.
With data collected during the transesterification step, the following parameters were estimated: kinetic reaction rate constant ([k.sub.t]), mass transfer constant in the liquid phase for EG at beginning of transesterification step ([k.sup.T.sub.LEG0]A) and parameter [beta] (as shown in Eq.
On the other hand, electrochemical oxidation of GC in basic or acidic media has been tested as a surface modification methodology and has been demonstrated that heterogeneous transfer constant and capacitance are increased [12].
The frequency converter can be described by transfer constant [K.sub.FC], time constant of the frequency converter [T.sub.FC] and control voltages [u.sub.Cx], [u.sub.Cy].
Money transfer constant currency revenue growth went up 13 percent in the same period, while transaction growth increased by 14 percent.
For each first step MLP has three-layer architecture and an additional entrance layer with transfer constant weights equal with [w.sub.p][a.sub.p].
The relative decrease depends on the magnitude of transfer constant.
For family rows insert dressing room friction, replace troublesome teenagers with undisciplined skippers and transfer constant run-ins with the local constabulary for numerous enquiries from the suits within the FA.
where [F.sub.oi] - transfer function of the current control loop; [F.sub.Ri] - transfer function of the current controller; [K.sub.FC] - transfer constant of the frequency converter; [K.sub.I] - transfer constant of the current sensor; [K.sub.AD] - transfer constant of the A/D converter; [L.sub.S] - stator inductance; [R.sub.S] - stator resistance; [T.sub.i] time constant of the current control loop (CL); [T.sub.NCi] uncompensated time constant of the current CL; [T.sub.Si] sampling period of the current CL; [T.sub.S] - stator time constant; [T.sub.FC] - time constant of the frequency converter; a - total leakage constant.
Methanol (MeOH) was selected as solvent because of low chain transfer constant to solvent and the ease of separation of the methyl acetate produced as byproduct.
where [Mathematical Expression Omitted] represents the apparent monomer chain transfer constant, and is defined by: