The connection between reinforcement and mortar was established through the surface-to-surface contact method.The transient dynamic Full method was adopted for dynamic loading solution.The numerical analysis model for the bonding performance of corroded mortar bolts under dynamic load was established.The numerical analysis results were compared wit
Two new species in the Echinoderes coulli group (Echinoderidae, Cyclorhagida, Kinorhyncha) from the Ryukyu Islands, Japan
Two new species belonging to the Echinoderes coulli group are described with their external morphologies and sequences of nuclear 18S rRNA and 28S rRNA genes, and mitochondrial COI gene.The first species, Echinoderes komatsui sp.n., is characterized by absence of acicular spines, and presence of lateroventral tubules on segments 5 and 8, APS`BOND C
Fundamental study on functionality of synthetic sulfides: Evaluation of metal sulfides as solid lubricant
Replacement of exhaustible and harmful resources used as solid lubricants is required for sliding elements such as plain bearings.In particular, the substitution of lead containing in the lead bronze is NIKE considered an urgent task.Therefore, in this study, attention was focused on metal sulfides (Cu2S, Cu5FeS4, SnS, TiS2, etc) as a substitute ma