Koki Tanaka

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We report a case of primitive neuroectodermal tumor (PNET) arising in the transverse colonic mesentery. A 24-year-old Japanese woman was admitted to Kagoshima City Hospital with complaints of abdominal pain and sensations of abdominal fullness of 5 months' duration. On palpation, a mass the size of an infant's head was noted in the right flank. Abdominal(More)
The impact of the dispersion map on 10-Gbit/s single-channel transmission was experimentally investigated. The transmission performance was significantly varied with the dispersion map. By using the optimum dispersion map, 40-Gbit/s transmission over 10,200 km has been achieved.
A case of recurrent nonocclusive mesenteric ischemia in a patient with isolated internal iliac artery aneurysm penetrating the sigmoid colon is described. On the day after the aneurysm and the sigmoid colon had been resected, the patient developed necrosis of the left hemicolon. Fourteen and nineteen days after left hemicolectomy, massive intestinal(More)
The cross sections for single-neutron removal from the very neutron-rich nucleus 31Ne on Pb and C targets have been measured at 230 MeV/nucleon using the RIBF facility at RIKEN. The deduced large Coulomb breakup cross section of 540(70) mb is indicative of a soft E1 excitation. Comparison with direct-breakup model calculations suggests that the valence(More)
The structure of 19,20,22 C has been investigated using high-energy (around 240 MeV/nucleon) one-and two-neutron removal reactions on a carbon target. Measurements were made of the inclusive cross sections and momentum distributions for the charged residues. Narrow momentum distributions were observed for one-neutron removal from 19 C and 20 C and(More)
500 Gb/s, over 4000 km transmission was moderated with 22 nm-bandwidth EDFAs and low dispersion slope fiber. By reducing the dispersion slope and fiber nonlinearity, the transmission distance was almost doubled compared to the previous experiments with similar capacity.
The unbound excited states of the neutron drip-line isotope 24O have been investigated via the 24O(p,p')23O + n reaction in inverse kinematics at a beam energy of 62  MeV/nucleon. The decay energy spectrum of 24O* was reconstructed from the momenta of 23O and the neutron. The spin parity of the first excited state, observed at E(x) = 4.65±0.14  MeV, was(More)
Foodborne illness presents a public health challenge in USA. There is an urgent need for the federal government and food industries to expand efforts to prevent any food contamination that potentially could be harmful to human health. The Food Safety Laboratory (FSL), ARS, USDA, is one of the leading laboratories for the development of optoelec-tronic(More)