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Live Electrooptic Imaging Camera for Real-Time Visual Accesses to Electric Waves in GHz Range
Masahiro Tsuchiya,Takahiro Shiozawa 한국전자파학회JEES 2011 Journal of Electromagnetic Engineering and Science Vol.11 No.4
Recent progresses in the live electrooptic imaging (LEI) technique are reviewed with emphasis on its functionality of real-time visual accesses to traveling electric waves in the GHz range. Together with the principles, configurations, and procedures for the visual observation experiments by an LEI camera system, the following results are described as examples indicating the wide application ranges of the technique; Ku-band waves on arrayed planar antennas, waves on a Gb/s-class digital circuit, W-band waves traveling both in slab-waveguide modes and aerially, backward-traveling wave along composite right/left-handed transmission line, and, waves in monolithic microwave integrated circuit module case.
HAN, Sang-Hoon,IWASA, Masahiro A.,OHDACHI, Satoshi D.,OH, Hong-Shik,SUZUKI, Hitoshi,TSUCHIYA, Kimiyuki,ABE, Hisashi 濟州大學校 基礎科學硏究所 2003 基礎科學硏究 Vol.16 No.2
Molecular phylogeny of crodicurine shrews(Insectivora, Soricidae) in northeastern Asia was investigated to confirm the taxonomic status of unidentiffied specimens of Crodicura from Cheju Island, South Korea. Phylogenetic trees were construced by neighbor-joining (NJ) and maximum likelihood(ML) methods, based on mitochondrial cytochrome b gene sequences (402 base pairs) of 37 individuals of seven crocidurine species and three unidentified specimens from 31 localities mainly in northeastern Asia. Phylogenetic position of the three unidentified specimens from Cheju Island were compared with those of Suncus nurinus, C. attenuata, C. dsinezumi, C. lasiura, C. sibirica, C. suaveolens, and C. watasei. Both in NJ and ML trees, the three unidentified specimens were included in the cluster of C. dsinezumi and were obviously different from C. suaveolens on Cheju Island. Thus, the present investigation demonstrated that both C. suaveolens and C. dsinezumi exist on Cheju Island. Asiatic Black bear Management, Team Southern branch office at Mt. Jiri, 511-1 Whangeon-ri, Masan-meon, Gurye-gun, Jeolla-Namdo 542-853, Republic of Korea, e-mail : kwirc@ehol, com(SHH); Graduate School of Environmental Earth Science, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan, e-mail : iwasam@vetemed. hokudai, ac.jp (MAI, HS) ; Institute of Low Temperatures Science, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan, e-mail : ohd@pop.lowtem.hokudai.ac.jp (SDO); Cheju National University, Ara-dong 1, Cheju, Cheju-do 690-756, Republic of Korea (HSO) ; Tokyo University of Agriculture, Atsugi, Kanagawa 243-0034, Japan (KT) ; Katsuraoka 26-17, Otaru, Hokkaido 047-0264, Japan (HA)
TADASHI HASEGAWA,TAKESHI AKASAKA,YUTAKA MAEDA,MASAHIRO HASHIMOTO,MAKOTO KANDA,TAKAHIRO TSUCHIYA,TAKATSUGU WAKAHARA,YUHEI MIYAUCHI,SHIGEO MARUYAMA,JING LU,SHIGERU NAGASE 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2007 NANO Vol.2 No.4
Single-walled carbon nanotubes (SWNTs) synthesized by catalytic decomposition of an alcohol were purified by extraction. The purified SWNTs were characterized on the basis of visible-near infrared (vis-NIR) absorption, photoluminescence and Raman spectroscopic analyses, scanning electron microscopy (SEM) observation, and thermal analysis. Selective extraction of metallic nanotubes was also achieved by the extraction condition.