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Yamaji, Minoru,Hakoda, Yuuma,Horimoto, Ami,Okamoto, Hideki Korean Society of Photoscience 2014 Rapid communication in photoscience Vol.3 No.4
Novel diphenylphenanthrenes (DPPs) were prepared by a photocyclization method, and the substituent effects of the phenyl groups on the photophysical properties of the phenanthrene chromophore were investigated based on measurements of fluorescence yields, lifetimes, and transient absorption. Fluorescence activities in DPPs are increased by introducing phenyl rings that can enhance the transition moment along the short axis of the phenanthrene skeleton. Intersystem crossing from the fluorescent states to the triplet manifolds is shown to be operative through the triplet-triplet absorption spectra obtained by laser photolysis techniques.
Peng Wang,Kousaku Souma,Tastunori Yano,Masayuki Nakano,Hideki Okamoto,Binghai Cao,Chihiro Sato,Takayoshi Masuko 한국초지조사료학회 2009 한국초지조사료학회 학술대회논문집 Vol.2009 No.08
The objective of this study was evaluated the influences of the nitrogen fertilization level on timothy silage fermentation quality, nutritive value, and nutrient intake. In both the first and second crops, high level nitrogen fertilization (H) led to a lower WSC content and higher CP content than standard nitrogen fertilization (S). The silage fermentation quality was good in the presence of a Lactobacillus inoculant (SI and HI) than uninoculant (SC and HC). In the first crop silage, the TDN content and intake were significantly higher (P<0.01) for HI than for SI. In the second silage, the DM, DE, and TDN intakes did not significantly differ among the 4 treatments.