Resistance distance versus

In the further analysis, let us consider a porous body with length I2. Furthermore, let us examine the resistance factor buildup vs injected pore volumes relationship for an li and I2 — h section, where hinjection time, the number of the injected pore volumes in the 0—/j section is (/j — li)/li times the injected pore volumes in the I2 — I1 section. If li<(l2 — li) the li/(l2 — h) ratio would show how many times lower the slope of the resistance factor versus injected pore volumes relationship is in the O-ij segment. This is true provided that the rate of polymer buildup as a function of time is the same at any location. But it was earlier pointed out that the rate of polymer buildup as a function of time is the highest at the inlet face. Consequently, there should be an /j location, when for the 0—/j distance the slope of Rp vs PVI is equal to the slope for I2 — li distance. 

Table 2 Solution Ohmic Resistance Versus Reference Electrode Distance...

Fig. 19 Plot of interpolar resistance versus anode-cathode distance from the work of Dorward and Payne on a pilot cell equipped with wettable cathodes. The difference between the broken and solid lines is due to gas bubbles [47],...

Figure 9.10. Voltage versus distance for (a) a linear electrophoresis gel, and (b) a gradient gel. From Ohm s law, with constant current, the observed voltage changes mirror the resistance properties of the gels.

The frequency dependence of the measured resistance of the CVCC conductivity cell was tested using molten KCl and three different compositions of cryolite melts. The statistical analysis of the results indicated that the electrical conductivity of each electrolyte is independent of the applied frequency. Figure 8.11 shows the conductivity results as a function of the applied frequency. No variation of the conductivity values was observed within dispersion of 1%. This verifies the principle on which the technique is based, i.e. that the slope of resistance versus the distance L in the tube-type conductivity cell is independent of the applied frequency. Conventional methods, on the other hand, have to take into account the applied frequency and many conductivity values were derived or extrapolated to the infinite frequency of the measuring current. 

FIGURE 4.3.26 Differential resistance (dV/dl) versus probe-electrode separation distance for different applied probe voltages, based on the data in Figure 4.3.26(b). (From Kelley, T.W. and Frisbie, C.D., J. Vac. Sci. Technol., B 18, 632-635, 2000. With kind permission.)... 

The Var der Waals energy versus the distance between CNT in array for square and triangle lattices is presented in Fig. 2. The square lattice is instable with respect to spontaneous transition to triangle lattice with the minimal distance between tubes a 0.6 nm due to negative value of Ci2 module. For a > 0.7 nm the triangle lattice becomes also instable and the plastic flow of array could arise without any resistance. 

Another advantage with the new ISO standard (ISO 15589-1/2 2004) is that it does not specify any maximum distance between the anodes. Instead it requires calculation of maximum potential midway between two anodes based on the current density used and the actual coating breakdown factor in the end of the lifetime. Figure 19.16 shows a schematic presentation of the situation and the equivalent current flow loop with all actual resistors, where =anode potential (V versus Ag/AgCl) =potential on the pipe surface (cathode) (V versus Ag/AgCl) = anode resistance (Q) Rs= resistance for current flow in seawater outside the pipe (i2) Rc= resistance for current entering the pipe surface (Q) R f= resistance for current flowing in the pipe metal (Q) and 4= total protection current in the loop (A). 

FIGURE 6.16 (a) Typical experiment for measuring the resistance of an intumescent char (sample (h = 1 mm), 10°C/min from 20 to 500°C, strength = 0, no strain). The upper plate is put in contact with the material and goes down linearly (0.02 mm/s) after reaching 500°C. The force is followed versus the distance between the two plates (gap). (b) Gap as a function of temperature of the intumescent formulations. 

Fig. 35.12 Temperature versus power density for resistive heaters based on polypyrrole-coated polyester fabrics. Temperature probes were placed at a distance of ( ) 3 ins. and (A) 6 ins. from the fabric.

Fig. 2. Thermometer resistance versus distance from liquid surface.

FIGURE 5.10 Dimensionless temperature versus dimensionless distance for a slab subjected to a step change in surface temperature (no thermal resistance). The parameter is the dimensionless time, f. To is the initial temperature and Ti is the wall temperature. 

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