Curve characteristics

IP s have different parameters than x-ray films and so must be used in different ways. The system scanner-IP in the case at hand has a different characteristic curve. To make comparisons, one must have a conversion of the obtained grey scale values into the intensity values supplied by the film-light box system. 

Where Pg is the pressure of vapor in equilibrium with the adsorbed film. The characteristic curve is now just PF In Pq/P versus x (or against [Pg.627]

The curve of Fig. XVII-15 is essentially a characteristic curve of the Polanyi theory, but in the form plotted in might better be called a characteristic isotherm. Furthermore, as would be expected from the Polanyi theory, if the data for a given adsorbate are plotted with RTln P/f ) as the abscissa instead of just ln(P/P ), then a nearly invariant shape is obtained for different temperatures. The plot might then be called the characteristic adsorption curve. 

In test planning, the number to be placed on test n and the number of failures rmust be deterrnined. The operating characteristic curves in Reference 18 can be used to specify the test, and to control the errors. 

Fig. 20. Characteristic curves of a model Polavision image transmission density vs the relative log exposure where ( ) is the positive image (-), the...

Generalized Correlations. Generalized correlations are often the only recourse when a property value cannot be determined from empirical correlations or by other means. Several powerful correlating techniques fall under this category, including the principle of corresponding states (3,17), reduced property models (1), and the Polanyi-type characteristic curve for microporous adsorbents (14). 

FIG. 10-28 Characteristic curve of a centrifugal pump operating at a constant speed of. 3450 r/min. To convert gallons per minute to cubic meters per hour, multiply hy 0.2271 to convert feet to meters, multiply hy 0..3048 to convert horsepower to kilowatts, multiply hy 0.746 and to convert inches to centimeters, multiply hy 2.54. 

FIG. 10-72 Approximate characteristic curves of various types offans. 

For a given set of assumptions it is possible to calculate the characteristic curves for the product from the ciystaUizer when it is operated at various levels of fines removal as characterized by Lj. This has been done for an ammonium sulfate crystalhzer in Fig. 18-63. Also shown in that figure is the actual size distribution obtained. In calculating theoretic size distributions in accordance with the Eq. (18-41), it is... 

Variable-Pressure, Variable-Rate Filtration The pattern of this categoiy comphcates the use of the basic rate equation. The method of Tiller and Crump (loc. cit.) can be used to integrate the equation when the characteristic curve of the feed pump is available. 

FIG. 22-65 Characteristic curve for flux as a function of pressure for cross-flow membrane processes limited by mass transfer at the membrane. 

To make a proper selection of HRC fuses it is essential that the current-time characteristic curves for Ihe releases of the breaker and the fuses are available from their manufacturers. 

A typical characteristic curve of a PTC thermistor having a Curie point of 120°C is shown in Figure 12.37. 

Normally the user provides the nature of a probable earthquake in the form of RRS, i.e. acceleration characteristic curves, period versus spectral acceleration, such as those in Figure 14.18. The first objective is to generate a signal which should be able to produce a time history, on a shake table, whose response spectra match those of the RRS. 

The ZnO protective characteristic curves of Figure 18.4(b) also suggest that these protective characteristics remain unaffected by variations in operating temperatures except in very low current ranges is that ind immaterial. 

Duty cycles Continuous duty (CMR) (S ) Periodic duties Factor of inertia (FI) Pleating and cooling characteristic curves Drawing the thermal curves Rating of short motors Equivalent output of short time duties Shock loading and use of a flywheel... 

Figure 3. These are characteristic curves of common valves (Reference 2).

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