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| 1 | A New Halogenated Biindole and A New Apo-carotenone from Green Alga Chaetomorpha basiretorsa Setchell显示文摘A new halogenated biindole and a new apo-carotenone have been isolated from the ethanolic extract of the green alga Chaetomorpha basiretorsa Sethcell. On the basis of chemical and spectroscopic methods including 2D NMR technique, their structures have been elucidated as 4,4′-dichloro-5,5′-dibromo-7,7′-dimethoxy-2,2′-bi-1H-indole and 1′S*,4′R*-8-(4′-hydroxy-2′,6′,6′- trimethylcyclohex-2-enyl)-6-methyloct-3E,5E,7E-trien-2-one, respectively. | DaYongSHI LiJunHAN JieSUN ShuaiLI SuJuanWANG YongChunYANG XiaoFAN JianGongSHI | 2005 | Chinese Chemical Letters2005，16，6： | 6 |
| 2 | A New Bromophenol from the Brown Alga Leathesia nana显示文摘A novel bromophenol was isolated from ethanolic extract of the brown alga Leathesia nana S.et G. The structure was elucidated as (E)-3-(2,3-dibromo-4,5-dihydroxyphenyl)-2-methylpropenal by spectroscopic methods including IR, HREIMS, 1D and 2D NMR techniques. | XiuLiXU XiaoFAN FuHangSONG JieLuZHAO LiJunHAN JianGongSHI | 2004 | Chinese Chemical Letters2004，15，6： | 1 |
| 3 | Numerical Simulation of Mechanical Behaviors of the TiNi Shape Memory Alloy Welded Joints in the Precise Pulse Resistance Butt-Welding显示文摘The hysteresis unit system was introduced to mechanical structure behavior of the TiNi SMA joint based on the structure characteristics of the martensite variants in the joints, and some functions reflecting its inner structure characteristics and micro-behavior such as density function, phase transformation function were set up from micropoints. Finally, the structure behavior relationship and corresponding mathematic model reflecting the relationship among hysteresis strain, stress and phase transformation strain were provided, which could predict the stress-strain behavior of the TiNi SMA joint to large extent. | LijunHAN JunjieZHU LihongHAN | 2003 | Journal of Materials Science & Technology2003，19，4： | 0 |
| 4 | A New Sesquiterpene-substituted Benzoic Acid from the Brown Alga Dictyopteris divaricata显示文摘A new sesquiterpene-substituted benzoic acid has been isolated from the brown Alga Dictyopteris divaricata Okam.. Its structure was elucidated as 3-[(2-hydroxy-2,5,5,8a-tetra- methyldecahydro-1-naphthalenyl)methyl]-4-hydroxybenzoic acid, named dictyvaric acid on the basis of spectroscopic methods including IR, HRFABMS, 1D and 2D NMR techniques. | FuHangSONG XiaoFAN XiuLiXU JieLuZHAO LiJunHAN JianGongSHI | 2004 | Chinese Chemical Letters2004，15，3： | 0 |
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