Resistance basis weight effect

In the study described above, strong evidence was shown that for the case of James River conductive base paper, a pressure of 13.8 Mfa applied to stainless steel electrodes was sufficient to effectively reduce contact resistance to negligibly small proportions. In the study described below the question as to whether the in situ pressure conductivity method would also be appropriate for different types of nonconductive papers which exhibit varied surface morphology is addressed. Consequently, paper samples were prepared, with basis weights of 60, 115, and 190 g/m2, all with a 1 1 ratio by weight of softwood-hardwood pulp, in a centrifugal dynamic vertical sheet former. Each of... 

Another useful element in imparting oxidation resistance to steel is silicon (complementing the effects of chromium). In the lower-chromium ranges, silicon in the amounts of 0.75 to 2 percent is more effective than chromium on a weight-percentage basis. The influence of 1 percent silicon in improving the oxidation rate of steels with varying chromium contents is shown in Fig. 28-26. 

The weight of soil carried in the surface runoff has been estimated by relating the sediment load to the rate of energy dissipation at the land surface by the rainfall and flowing water. The resistance of the soil to eroding forces has also been considered (4), and a method has been developed to estimate the net effect of erosion on radioaerosol transport. The volume of the liquid phase is estimated on a continuous basis by the Stanford watershed model, through consideration of a water budget. This feature has been retained in the HTM-1. 

This appendix contains extensive chemical resistance data for a number of commercial fluoropolymers. Most of the chemicals are frequently encountered in processing operations. The data for each fluo-ropolymer are organized alphabetically, using the common name of each chemical. The reader should review the next section (Sec. V.2) to understand the basis for the PDL Rating. Exposure conditions for each chemical have been listed because the same chemical could behave in a different way if the conditions of exposure (such as temperature or concentration) are altered. Where data have been available, the effect of exposure on the physical properties such as weight change and tensile properties have been listed. 

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