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Rush

The reaction is carried out in a 2-litre long-necked round-bottomed flask, to which is fitted an efficient reflux water-condenser, capable of condensing a sudden rush of vapour without choking. For this purpose, a long bulb-condenser, similar to that shown in Fig. 3(A) (p. 9) is best, but the inner tube must be of wide bore (at least 12 mm.). Alternatively, an air-condenser of wide bore may be used, an.d a short double-surface water-condenser fitted to its top. A steam-distillation fitting for the flask should also be prepared in advance, so that the crude product can subsequently be steam-distilled directly from the flask. The glj cerol used in the preparation must be anhydrous, and should therefore be dehydrated by the method described on p. 113. [Pg.298]

S. Kaplan, O. KoUuri, G. Hansen, R. Rushing, and R. Warren, technical paper presented at Conference on Adhesives, Society of Manufacturing Engineers, Atlanta, Ga., Sept. 12, 1989. [Pg.371]

Droplets from the jet caused by liquid rushing to fill the cavity left by the bubble (see Fig. 14-89). These droplets range up to 1000 Im, their size depending on bubble size. This is important only at modest loadings. Once foam forms over the surface, drop ejection by this mode decreases sharply. [Pg.1413]

The closer one is to the failure, the more its direct effects are apparent. The cumulative effects of failure are often overlooked in the rush to fix the immediate problem. Too often, the cause of failure is ignored or forgotten because of time constraints or indifference. The failure or corrosion is considered just a cost of doing business. Inevitably, such problems become chronic associated costs, tribulations, and delays become ingrained. Problems persist until cost or concern overwhelm corporate inertia. A temporary solution is no longer acceptable the correct solution is to identify and eliminate the failure. Preventative costs are almost always a small fraction of those associated with neglect. [Pg.462]

If a major freeway with four lanes of traffic in one direction passes four cars per second at 100 km per hour during the rush period, and each car carries two people, how often would a commuter train of five cars carrying 100 passengers per car have to be operated to handle the same load Assume the train would also operate at 100 km f>er hour. [Pg.96]

Typically, urban concentrations peak during the morning and afternoon rush hours. Levels are also higher in winter in cold regions of the world than in other... [Pg.23]

Rush ton et al. [10] investigated the effect of varying the tank geometrical ratios and the correlation of the Power number with Reynolds number. At high Reynolds number, it was inferred that. [Pg.574]

If someone is overcome inside a vessel or pit, we should never attempt to rescue him without an air mask. We must curb our natural human tendency to rush to his aid, or there will be two people to rescue instead of one (see Section 11.6). [Pg.253]

Properties.—Yellow-green liquid with a peculiar penetrating and sweet smell, which, on inhaling, causes a rush of blood to the head, b. p. 96° sp. gr. 0 902. See Appc77tUx. p. 240. [Pg.69]

An estimate is required of the total hydrocarbon concentration 300 meters downwind of an expressway on an overcast day with wind speed 4 m/s. Tlie expressway runs norlli-south and the wind is from tlie west. Tlie measured traffic flow is 8000 vehicles per hour during tlris rush hour, and the average speed of the velucles is 40 mph. At tlris speed tlie average vehicle is expected to... [Pg.388]

The tremendous burst of excitement which attended the initial isolation in 1990 of weighable amounts of separated fullerenes has been followed by an unparalleled and sustained surge of activity as chemists throughout the world rushed to investigate the chemical reactivity of these novel molecular forms of carbon. [Pg.282]


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See also in sourсe #XX -- [ Pg.77 ]

See also in sourсe #XX -- [ Pg.46 , Pg.87 , Pg.88 , Pg.103 , Pg.207 ]




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