Hidenao Hasegawa, Naofumi Akata, Katsuhiko Okuyama, Shinya Ochiai, Hideki Kakiuchi, Shinji Ueda. Study of seasonal variation of accident-derived atmospheric radiocesium in Koriyama City, Fukushima Prefecture, Japan during 2011-2014. Radiation Protection Dosimetry. 2024. 200. 16-18. 1829-1834
Ryoko Suzuki, Katuhiko Okuyama, Kohei Chiba, Taiki Hashimoto, Natsumi Katsumata, Azusa Ukitsu, Khemruthai Kheamsiri, Ryohei Yamada, Naofumi Akata. Behavior of Radioactive Cesium Concentration for 13 Years after FDNPP Accident at Koriyama Campus of Nihon University, Fukushima, Japan. Radiation Protection Dosimetry. 2024. 200. 16-18. 1835-1839
Ryoko Suzuki, Kohei Chiba, Sei’ichi Tanaka, Katsuhiko Okuyama. Electronic spectra of jet-cooled 1,4-bis(phenylethynyl)benzene: Strength in π-electron conjugation and two large-amplitude torsional motions. The Journal of Chemical Physics. 2024. 160. 2. 024301
Kohei Chiba, Yuto Naganuma, Daisuke Ishibashi, Katsuhiko Okuyama. Electronic excitation spectra of jet-cooled phenyl isocyanate, m-tolyl isocyanate, and p-phenylene diisocyanate: Assignment of the cis and trans rotational isomers. The Journal of Chemical Physics. 2022. 157. 18. 184305-184305