Plate composition effects

Plate Composition Effects on Visual Cue. Mechanical Function and Absorption... 

Flexible composite bone plates are effective in promoting healing [lockish, 1992], but particulate debris from composite bone plates gives rise to a foreign body reaction similar to that caused by ultra high molecular weight polyethylene. 

A similar analysis has been applied by some writers to the case where the distillation has been discontinued at a finite refiux ratio. The usual straight operating line was employed to determine the plate composition at the end of the distillation, but in view of the fact that the operating line is curved for such a case, the calculations are probably of little value. If the operating lines corresponding to Eq. (14-16) or (14-17) could be evaluated for the end of the distillation, then an analysis of the effect of holdup could be made. 

Feed Composition. Feed composition has a substantial effect on the economics of a distillation. Distillations tend to become uneconomical as the feed becomes dilute. There are two types of dilute feed cases, one in which the valuable recovered component is a low boiler and the second when it is a high boiler. When the recovered component is the low boiler, the absolute distillate rate is low but the reflux ratio and the number of plates is high. An example is the recovery of methanol from a dilute solution in water. When the valuable recovered component is a high boiler, the distillate rate, the reflux relative to the high boiler, and the number of plates all are high. An example for this case is the recovery of acetic acid from a dilute solution in water. For the general case of dilute feeds, alternative recovery methods are usually more economical than distillation. 

Heat scales and mst on steel are not of even composition or thickness, and parts are subject to uneven pickling. To minimize over-etching, inhibitors are sometimes used to slow the attack on the clean steel. Many inhibitors produce strong adverse effects if carried into the plating solution. A second electrocleaning step is used after the pickle when inhibitors are employed. 

Changes observed in the composition of the rubber/brass interphase correlated well with results of adhesion tests carried out on brass-plated steel wires embedded in blocks of rubber [46]. The force required to pull the wires out of the blocks decreased steadily as vulcanization temperature increased. This effect was especially pronounced when the specimens were aged at elevated temperature and humidity for several days before the wires were pulled out of the rubber blocks. 

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