Katsutoshi Ohkubo

TL;DR: In this article, the authors describe various forms of damage to underground structures such as tunnels, caverns, natural caves and abandoned mines during major earthquakes and show the effect of ground shaking on the response and collapse of underground structures in continuum and discontinuum.

TL;DR: An ab initio MO study was carried out on CO 2 insertion into a Cu(I)-H bond of CuH(PH 3 ) n (n=2,3) as mentioned in this paper.

TL;DR: In this article, an imidazole-containing polymer inprinted with a transition state analogue exhibited homogeneous esterolytic catalysis efficiently, using a transition-state analogue.

TL;DR: In this article, the catalytic properties of l -histidyl group-introduced, cross-linked polymers imprinted by a transition-state analogue (phenyl 1-benzyloxycarbonylamino-3-methylpentylphosphonate) or a ground-state one (N -( N -benzinyloxy carbonyl- l -leucinoyl) anthranilic acid) were examined for the esterolysis of a marked substrate of p -nitrophenyl N -bensyl carbony

TL;DR: A novel water-soluble cross-linked polymer catalyst containing l -histidine and quarternary trimethylammonium groups was imprinted by a racemic transition-state analogue of phenyl 1-benzyloxycarbonyl-3-methylpentylphosphonate for the hydrolysis of enantiomeric amino acid p-nitrophenyl esters in 10 vol% DMSO (or MeCN) at 303 K as mentioned in this paper.