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Ni–Al alloys are good candidate materials for the turbine blades of high-efficiency gas turbines. The thermophysical properties of the liquid alloy are required for accurate modeling of the casting process. In this study, the densities of liquid Ni–Al alloys were measured over the entire composition range using the electromagnetic levitation technique under a static magnetic field. Surface oscillation...
A simple and efficient synthesis of 4,5-dihydro-4-oxo-3-furancarboxylates using an acylative intramolecular cyclization of sulfonium salts is described. The reaction involved the efficient formation of a mixed anhydride between a linear carboxylic acid and trifluoroacetic anhydride in the presence of N-methylimidazole, followed by the sequential conversion into a highly reactive acylammonium species...
In this paper, Yamamoto-Itoh scheme, which is a blockwise variable length coding scheme originally proposed to the case of noiseless feedback, is generalized to the case of noisy feedback, and some lower bounds of the error exponent of the generalized Yamamoto-Itoh scheme are derived for discrete memoryless channels and additive white Gaussian channels. Furthermore, it is shown that error exponent...
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