Upward progression

One easily understands why, in this experiment, the bubbles of air which go up on the surface of mercury are not restricted to develop film segments of a sphere, but continue their upward progress by forming complete film spheres each bubble of air, after having formed a mercnrial cap, remains subjected, on behalf of the water, to an upwards push which is transmitted to it by the intermediary of mercury, and makes it overcome the capillary pressure exerted on it from top to bottom by the raised cap the... 

During the tests, as the burn front reached the steam-cooled region above the coolant pool (e.g.. Level 52 to Level 30 in FLHT-5), temperatures were too low to initiate autocatalytic oxidation. Without the rapid oxidation that accompanies autocatalytic oxidation, steam was available for consumption in the upper elevations this steam then fueled an upward-moving burn front. This front slowly moved up through the damaged bundle midsection and then along the relatively unoxidized upper section (above Level 100) toward the top of the bundle. The upward progression continued until the test was terminated. 

SpiralTlevator Materials are moved upward by the centrally located spiral-type conveyor in a cylindrical or cone-shaped Nautamix vessel (Fig. 37c and d). Blending occurs by the downward movement at the outer walls of the vessel. The vessel serves the dual purposes of blending and storage. In these mixers the screw impeller actively agitates only a small portion of the mixture and natural circulation is used to ensure all the mixture passes through the impeller zone. In the case of Nautamix, an Archimedian screw lifts powder from the base of a conical hopper while progressing around the hopper wall. 

As the L/G is decreased, the concentration of solute tends to build up in the upper parts of the absorber, and the point of highest temperature tends to move upward in the tower until finally the maximum temperature develops only on the topmost plate. Of course, the capacity of the hquid phase to absorb solute fafls progressively as the L/G is reduced. 

On a macroscale (Fig. 2-1) as temperature varies with altitude, so does density (1). In general, the air grows progressively less dense as we move upward from the troposphere through the stratosphere and the chemo-sphere to the ionosphere. In the upper reaches of the ionosphere, the gaseous molecules are few and far between as compared with the troposphere. 

Detailed consideration of the interaction between particles and fluids is given in Volume 2 to which reference should be made. Briefly, however, if a particle is introduced into a fluid stream flowing vertically upwards it will be transported by the fluid provided that the fluid velocity exceeds the terminal falling velocity m0 of the particle the relative or slip velocity will be approximately o- As the concentration of particles increases this slip velocity will become progressively less and, for a slug of fairly close packed particles, will approximate to the minimum fluidising velocity of the particles. (See Volume 2, Chapter 6.)... 

In individual deposits, S S of sulfides generally increases stratigraphically upwards (Fig. 1.42). (Kajiwara, 1971). Based on the sulfur isotope evidence, Kajiwara (1971) deduced that the ore solutions underwent a progressive cooling and oxidation due to mixing with seawater. 

Careful attention to details when in the design stage of an SSD system will help ensure the easy installation of a system if it is found to be required. The proper details are given in the following subsections, beginning at the subslab area and progressing upward to the exhaust. 

This happens in Fig. 13.8, as we have seen, with the compound (38 X, Z = Me). On each side of this maximum the, different, rate-limiting step will be slowing down progressively, and so therefore will the overall reaction rate. Shifts in rate-limiting step, within the same overall reaction pathway, are thus distinguished by concave downwards deviations in Hammett plots this in contrast to the concave upwards deviations which, as we have already seen (p. 364), are characteristic of a change in overall reaction pathway. 

In its passage through a water column, a bubble acts as an interface between the liquid and vapour phases, and as such collects surface-active dissolved materials as well as colloidal micelles on its surface. Thus in a well-aerated layer of water, the upper levels will become progressively enriched in-surface-active materials. In the open ocean, an equilibrium undoubtedly exists between the materials carried downward by bubble injection from breaking waves and those carried upward by rising bubbles. In the laboratory, however, this effect will enrich the surface layer with organic materials. 

The situation in ethanol is similar but the upward curvature is manifested at lower [9 Zn2+] as demonstrated in Fig. 18 by the plot of Arobs for the cyclization of 32 vs. [9 Zn2+]totai under conditions where the [ OEt]/[Zn2 + ]totai = 0.5 which sets the measured jjpH at 8.1 +0.2. At progressively higher concentration this plot85 shows a downward curvature suggestive of a saturation phenomenon which is not seen in... 

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