IN his letter in NATURE of April 9, p. 527, Mr. H. F. P. Purday proposes to add yet another purely empirical formula to the many already proposed for representing the transfer of heat from a tube to a ...
For 15 years, scientists have been baffled by the mysterious way water flows through the tiny passages of carbon nanotubes — pipes with walls that can be just one atom thick. The streams have ...
The electricity used in various chemical plants is obtained from a co-generation plant burning waste gas streams or from a natural gas power plant. In large boilers, such as the one shown in Figure 1, ...
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