 558  472. Prom a rather qualitative consideration of the space-charge effects, it is apparent that the separation between the emitter and the collector should be of the order of 0.01 cm or smaller. The smaller the separation, the closer the actual efficiency can be expected to approach the values given above. 473. Subscripts r and n indicate rational and nonrational respectively. The denominators may be omitted if the symbols in the numerators are understood to mean measures rather than quantities. This leads to the conventional form of the measure equation with coherent units. 474. It has been suggested that the range of existence of X is very limited, centered about a composition corresponding to integral numbers of each atom in the unit cell. Such an arrangement is suggestive of an ordered system which indeed was found to be the case in Fe-Cr-Mo by Kasper. 475. Another aspect to be borne in mind when considering «talking books» is the complexity of the copymaking apparatus which governs the time taken to make a batch of copies. Should a two-spool system be chosen, re-winding all the copies of the «book» periodically prior to re-issue must be taken into account. 476. Aberrant data may occur without necessarily resulting in unusual values for the average or the range, the measures usually considered in a quality control program — it is possible that a single animal may be atypical without unduly affecting are average or range. 477. As is usual with non-linear dynamical systems the equa- 573 tion for the distribution function cannot be solved independently a solution requiring a knowledge of the binary correlation function, which in turn is determined by an equation involving ternary correlations, and so forth. 478. Although vascular responses to cold have generally been considered as serving the body economy by increasing body insulation and thus decreasing loss of body heat, it is clear that this is but one of the many cardiovascular reactions to cold exposure. 479. The non-volatile monomer is said to reduce fire and health hazards as opposed to commonly used solvents and crosslinks with the resin, eliminating the possibility of solvent entrapment. In addition, the solution has excellent storage stability. 558 |
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