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浏览/检索结果: 共8条，第1-8条 帮助

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Highly Aromatic Norditerpenoid Heterodimers and Monomers from Trigonostemon fragilis 期刊论文  OAI收割
ENGINEERING, 2024, 卷号: 38, 页码: 144-154
作者:  Zhou, Jun-Su;  Cheng, Long;  Gao, Yuan;  Ge, Zhan-Peng;  Zhou, Bin
  |  收藏  |  浏览/下载：19/0  |  提交时间：2024/10/21
Chemistry, Chemo-Ecology, and Biological Activities of Uncommon and Structurally Diverse Sesquiterpenoids from the Sanya Bay Nudibranch Hexabranchus sanguineus 期刊论文  OAI收割
CHEMISTRY-A EUROPEAN JOURNAL, 2023, 卷号: 29, 期号: 28
作者:  Shen, Shou-Mao;  Su, Ming-Zhi;  Yu, Dan-Dan;  Luo, Hui;  Li, Xu-Wen
  |  收藏  |  浏览/下载：10/0  |  提交时间：2024/03/27
Structural determination of eleven new preschisanartane-type schinortriterpenoids from two Schisandra species and structural revision of preschisanartanin J using NMR computation method 期刊论文  OAI收割
CHINESE JOURNAL OF NATURAL MEDICINES, 2019, 卷号: 17, 期号: 12, 页码: 970-981
作者:  Hu Kun;  Li Xing-Ren;  Tang Jian-Wei;  Li Xiao-Nian;  Puno, Pema-Tenzin
  |  收藏  |  浏览/下载：14/0  |  提交时间：2020/03/18
homo-adamantane type polyprenylated acylphloroglucinols from Hypericum pseudohenryi 期刊论文  OAI收割
TETRAHEDRON, 2017, 卷号: 73, 期号: 5, 页码: 566-570
作者:  Yang, Xing-Wei;  Wang, Huan;  Ma, Wei-Guang;  Xia, Fan;  Xu, Gang
收藏  |  浏览/下载：47/0  |  提交时间：2017/04/18
Structural revision of periplocosides and periperoxides, natural immunosuppressive agents from the genus Periploca 期刊论文  OAI收割
PHYTOCHEMISTRY, 2011, 卷号: 72, 期号: 17, 页码: 2230-2236
作者:  Wang, Luo-Yi;  Chen, Zheri-Hua;  Zhou, Yu;  Tang, Wei;  Zuo, Jian-Ping
  |  收藏  |  浏览/下载：26/0  |  提交时间：2019/01/08
Dome design and coupled thermal-mechanical analysis of supersonic missile (EI CONFERENCE) 会议论文  OAI收割
2009 International Conference on Optical Instruments and Technology, OIT 2009, October 19, 2009 - October 22, 2009, Shanghai, China
Xing-qiao A.; Qun W.; Hong-guang J.
收藏  |  浏览/下载：58/0  |  提交时间：2013/03/25
A review of high-speed flow pressure and aerodynamic heating effect on Supersonic missile's dome is given. The dome should have excellent properties in optical  mechanical and chemical characteristics. A design of dome on supersonic mode is described according to tactical guide line of a missile. The dome made of quartz which is about 8mm thick and 141mm in window diameter. To check up the reliability of the dome  a reasonable finite element model (FEM) of dome is established  and a thermal-mechanical Analysis to the dome by finite element software NASTRAN has carried on  through these can obtained the distribution of temperature field and stress field when the speed is 2.3Ma. The results indicated that the stress was concentrated in the joint of the dome end and the Missile Section  and the maximum stress was 16.4Mpa. The stress of other nodes was smaller than the allowable stress of quartz glass. Reference to the results of the analysis  a lightweight revision to the dome structural dimension and a new method of dome fixing have put forward  which can reduce the stress concentration. 2009 SPIE.  
Novel norsesquiterpenoids from the roots of Phyllanthus emblica 期刊论文  OAI收割
JOURNAL OF NATURAL PRODUCTS, 2000, 卷号: 63, 期号: 11, 页码: 1507-1510
作者:  Zhang, YJ;  Tanaka, T;  Iwamoto, Y;  Yang, CR;  Kouno, I
  |  收藏  |  浏览/下载：25/0  |  提交时间：2012/03/21
Structural revision of four spiramine diterpenoid alkaloids from the roots of Spiraea japonica 期刊论文  OAI收割
JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH, 2000, 卷号: 2, 期号: 4, 页码: 271-281
作者:  Wang, BG;  Hong, X;  Zuo, GY;  Hao, XJ
  |  收藏  |  浏览/下载：17/0  |  提交时间：2012/03/21