Zobrazeno 1 - 10
of 47
pro vyhledávání: '"YASUNAO KURIYAMA"'
Autor:
Yasunao Kuriyama
Publikováno v:
TRENDS IN THE SCIENCES. 26:7_38-7_42
Autor:
Kimiaki Masuda, Kazuhiro Kato, Satoshi Kikuchi, Fuyuki Tokanai, Saori Namai, Emiko Inui, Katsumasa Shibata, Yumi Arai, Hirohisa Sakurai, Yui Takahashi, Taichi Sato, Yasunao Kuriyama
Publikováno v:
Radiocarbon. 55:1827-1833
Using liquid scintillation counting (LSC) and accelerator mass spectrometry (AMS), radiocarbon concentrations were measured for wine from 8 wineries located in 7 countries in the Northern and Southern hemispheres. The 14C concentrations of ethanol an
Autor:
Shin-ichiro Nagasaka, Hiroki Itoh, Kenta Shibukawa, Yasunao Kuriyama, Yoshitaka Katano, Takehisa Yoshinari, Yuki Kimura
Publikováno v:
physica status solidi (b). 248:233-238
Faculty of Science, Department of Material and Biological Chemistry, Yamagata University, Kojirakawa, 1-4-12,Yamagata 990-8560, JapanReceived 23 December 2009, revised 21 May 2010, accepted 1 June 2010Published online 5 July 2010Keywords absorption s
Autor:
Yoshitaka Katano, Shin Tanaka, Takehisa Yoshinari, Yuki Kimura, Hiroki Itoh, Yasunao Kuriyama, Shin-ichiro Nagasaka
Publikováno v:
Synthetic Metals. 160:1131-1135
Thermal cis–trans conversion has been examined in oligothiophene single molecules encapsulated in the molecular vessels of cyclodextrin and Na-mordenite. At high temperatures, optical absorption intensities are enhanced in bithiophene, terthiophene
Autor:
Shin Tanaka, Hiroki Itoh, Takehisa Yoshinari, Yuki Kimura, Shin-ichiro Nagasaka, Yoshitaka Katano, Yasunao Kuriyama
Publikováno v:
physica status solidi (a). 207:1474-1480
Polarization dependence of the absorption spectra (ABS) and the luminescence spectra in α-quaterthiophene (4T) and α-quinquethiophene (5T) has been measured directly with near normal incident light on the ab, bc, and ca crystal planes of their thic
Autor:
Shin-ichiro Nagasaka, Hiroki Itoh, Bold Gombojav, Yasunao Kuriyama, Kiyohito Koyama, Takehisa Yoshinari
Publikováno v:
Journal of the Physical Society of Japan. 73:3166-3170
The temperature dependence of the absorption spectra of 2,2'-bithiophene and 2,2':5',2''-terthiophene isolated molecules in cyclodextrin (CyD) were investigated between 15 K to room temperature (RT). The optical absorption spectra of BT molecules in
Publikováno v:
Bulletin of the Chemical Society of Japan. 73:1557-1565
The γ-radiolysis of 1-arylcyclopentenes [Ar = Ph (1a); 4-ClC6H4 (1b); 4-MeC6H4 (1c); 4-MeOC6H4 (1d)] at 77 K initially gave transient absorption bands attributable to their monomer cation radicals (1a·+—1d·+), with λmax around 400 and 650—730
Publikováno v:
Bulletin of the Chemical Society of Japan. 72:1049-1055
Irradiation of 1-phenylcycloalkenes (1) with cyanoaromatics as electron-accepting sensitizers in MeCN and PhH containing 1.0 M MeOH gave trans- (2) and cis-isomers (3) of anti-Markovnikov adducts. It was found that the isomer ratio of 2/3 depended on
Publikováno v:
Tetrahedron Letters. 39:5967-5970
Contact charge transfer (CCT) complexes of trans-stilbenes with oxygen molecules were formed in zeolite NaY. Excitation of the CCT bands by a 313-nm wavelength light produced the corresponding benzaldehydes through an electron transfer reaction to ge
Autor:
Ken-Ichi Mogi, Masaki Kamata, Yasunao Kuriyama, Akiko Koike, Ryoichi Akaba, Hirochika Sakuragi
Publikováno v:
Journal of Physical Organic Chemistry. 10:861-869