The extracts from leaves of Manglietia insignis （Wall） Blume, Manglietia chingii Dandy and Manglietia yuyuanensis Law were prepared by organic solvent extraction and their components were analyzed by GC/MS and quant...The extracts from leaves of Manglietia insignis （Wall） Blume, Manglietia chingii Dandy and Manglietia yuyuanensis Law were prepared by organic solvent extraction and their components were analyzed by GC/MS and quantified. Meanwhile, the free radicals restraining activities were detected. The 21 compounds in M. insignis, 36 compounds in M. chigii and 20 compounds in M. yuyuanensis were identified. There were 11 common components in the extracts from three Manglietia species, and 12 components in two Manglietia species. The results of relative contents of every component in three extracts showed that the main constituents of M. insignis were terpenoids and alkene, amounting to 38.93%, followed by alkane （28.18%）, the nitrogen containing compounds （15.73%） and aromatic compounds （7.23 %）. The main constituents of leaf extract from M. chingii were the terpenoids and alkene, carboxylic acid, alkane and aromatic compounds, amounting to 30.22%, 14.17%, 13.87% and 13.29%, respectively, The main constituents of M. yuyuanensis were alcohol compounds, the terpenoids and alkene, and aromatic compounds, amounting to 28.00%, 25.38% and 18.00% respectively. The results showed that the three extracts had strong function of restraining oxygen free radicals. The ultra oxygen anions activity was restrained at the highest level, when the three extracts were diluted by hundred-fold, whereas the restraining capacity of hydroxyl free radicals reached maximum, when the three extracts were diluted by twenty-fold. The above results provide scientific evidences for further approaching the ecological healthy function of three MangUetia species展开更多
With the inputs from the relativistic mean field approach,the observed energy spectra and electromagnetic properties are well reproduced for the yrast band of odd-A nucleus 135Nd by the particle rotor model.Based on t...With the inputs from the relativistic mean field approach,the observed energy spectra and electromagnetic properties are well reproduced for the yrast band of odd-A nucleus 135Nd by the particle rotor model.Based on the analysis of the angular momentum components,it is further illustrated that this yrast band contains two stages of rotational mode,i.e.,the electric rotation for low-spin region and chiral mode for high-spin region.展开更多
Doublet bands withνh_(11/2)⊗νd_(5/2)^(−1) configuration are studied for the first time via the triaxial particle rotor model.The main properties of the doublet bands,including the energy spectra and the electromagne...Doublet bands withνh_(11/2)⊗νd_(5/2)^(−1) configuration are studied for the first time via the triaxial particle rotor model.The main properties of the doublet bands,including the energy spectra and the electromagnetic transitions,are presented for different triaxiality parameter γ.The aplanar rotation and chiral geometry are discussed based on the analysis of angular momentum components.展开更多
基金This paper was supported by the National "Eleven .Five" Scientific and Technological Supporting project "Test and demonstration for typical region city forest construction technol-ogy(2006BAD03A19) "
文摘The extracts from leaves of Manglietia insignis （Wall） Blume, Manglietia chingii Dandy and Manglietia yuyuanensis Law were prepared by organic solvent extraction and their components were analyzed by GC/MS and quantified. Meanwhile, the free radicals restraining activities were detected. The 21 compounds in M. insignis, 36 compounds in M. chigii and 20 compounds in M. yuyuanensis were identified. There were 11 common components in the extracts from three Manglietia species, and 12 components in two Manglietia species. The results of relative contents of every component in three extracts showed that the main constituents of M. insignis were terpenoids and alkene, amounting to 38.93%, followed by alkane （28.18%）, the nitrogen containing compounds （15.73%） and aromatic compounds （7.23 %）. The main constituents of leaf extract from M. chingii were the terpenoids and alkene, carboxylic acid, alkane and aromatic compounds, amounting to 30.22%, 14.17%, 13.87% and 13.29%, respectively, The main constituents of M. yuyuanensis were alcohol compounds, the terpenoids and alkene, and aromatic compounds, amounting to 28.00%, 25.38% and 18.00% respectively. The results showed that the three extracts had strong function of restraining oxygen free radicals. The ultra oxygen anions activity was restrained at the highest level, when the three extracts were diluted by hundred-fold, whereas the restraining capacity of hydroxyl free radicals reached maximum, when the three extracts were diluted by twenty-fold. The above results provide scientific evidences for further approaching the ecological healthy function of three MangUetia species
基金Supported by the National Natural Science Foundation of China under Grant Nos 11005069,10975007,10975008 and 11175108the Shandong Natural Science Foundation under Grant No ZR2010AQ005the Independent Innovation Foundation of Shandong University under Grant No 2011ZRYQ004。
文摘With the inputs from the relativistic mean field approach,the observed energy spectra and electromagnetic properties are well reproduced for the yrast band of odd-A nucleus 135Nd by the particle rotor model.Based on the analysis of the angular momentum components,it is further illustrated that this yrast band contains two stages of rotational mode,i.e.,the electric rotation for low-spin region and chiral mode for high-spin region.
基金Supported by the National Natural Science Foundation of China under Grant Nos 11005069,10975007,10975008 and 10875074the Shandong Natural Science Foundation under Grant No ZR2010AQ005the National Basic Research Program of China under Grant No 2007CB815000.
文摘Doublet bands withνh_(11/2)⊗νd_(5/2)^(−1) configuration are studied for the first time via the triaxial particle rotor model.The main properties of the doublet bands,including the energy spectra and the electromagnetic transitions,are presented for different triaxiality parameter γ.The aplanar rotation and chiral geometry are discussed based on the analysis of angular momentum components.
