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浏览/检索结果: 共86条，第1-10条 帮助 限定条件 发表日期：2015    专题：北京大学    第一署名单位    第一作者单位    通讯作者单位     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Enhanced converse magnetoelectric effect in Pb(Zr,Ti)O3-bimorph/Metglas laminated composite 期刊论文 journal of alloys and compounds, 2015 Zhang, Yuan; Liu, Guoxi; Li, Meiya; Li, Jun; Zhu, Yongdan 收藏  |  浏览/下载：2/0  |  提交时间：2015/11/12 Microstructure, phase transformation and mechanical property of Nb-doped Ni-Mn-Ga alloys 期刊论文 intermetallics, 2015 Tian, B.; Ji, R.; Tong, Y.X.; Li, L.; Zheng, Y.F. 收藏  |  浏览/下载：3/0  |  提交时间：2015/11/12 Microstructure and martensitic transformation of TiNiNbB shape memory alloys 期刊论文 intermetallics, 2015 Wang, Y.; Zheng, Y.F.; Tong, Y.X.; Tian, B.; Chen, F.; Li, L. 收藏  |  浏览/下载：3/0  |  提交时间：2015/11/12 Energy levels and oscillator strengths for Mg-like copper 期刊论文 2015 Si, R.; Guo, X.L.; Yan, J.; Li, C.Y.; Li, S.; Huang, M.; Chen, C.Y.; Wang, Y.S.; Zou, Y.M. 收藏  |  浏览/下载：4/0  |  提交时间：2015/11/12 Regionalization of water conservation function of beijing-tianjin-hebei area based on SOFM neural network 期刊论文 环境科学研究, 2015 Liu, Ya; Zhu, Wenbo; Han, Ya; Li, Shuangcheng 收藏  |  浏览/下载：4/0  |  提交时间：2015/11/13 Leaf P increase outpaces leaf N in an Inner Mongolia grassland over 27 years 期刊论文 biology letters, 2015 Mi Zhaorong; Huang Yuanyuan; Gan Huijie; Zhou Wenjia; Flynn Dan F B; He Jin-Sheng 收藏  |  浏览/下载：7/0  |  提交时间：2015/11/13 Chinese grassland,N : P stoichiometry,N deposition,soil acidification   A significant carbon sink in temperate forests in Beijing: based on 20-year field measurements in three stands 期刊论文 Science China(Life Sciences), 2015 ZHU JianXiao; HU XueYang; YAO Hui; LIU GuoHua; JI ChenJun; FANG JingYun 收藏  |  浏览/下载：3/0  |  提交时间：2017/12/03 carbon density  carbon flux  carbon cycle  carbon budget  permanent plot  temperate forest  NET PRIMARY PRODUCTION  SOIL RESPIRATION  TERRESTRIAL ECOSYSTEMS  CHINA  BIOMASS  BALANCE  STORAGE  CO2  EXCHANGE  CLIMATE   Trends in Archaea community diversity along a soil moisture gradient in the Tibetan Plateau 其他 2015-01-01 Yu Shi; Yingying Ni; Xin Jing; Jin-Sheng He; Haiyan Chu 收藏  |  浏览/下载：4/0  |  提交时间：2017/12/03 Biogeography  Tibetan Plateau  Archaeal community  Phylogenetic diversity  Biogeography  Tibetan Plateau  Archaeal community  Phylogenetic diversity   Carbon isotopic shift and its cause at the Wuchiapingian-Changhsingian boundary in the Upper Permian at the Zhaojiaba section, South China: Evidences from multiple geochemical proxies 期刊论文 JOURNAL OF ASIAN EARTH SCIENCES, 2015 Wei, Hengye; Yu, Hao; Wang, Jianguo; Qiu, Zhen; Xiang, Lei; Shi, Guo 收藏  |  浏览/下载：2/0  |  提交时间：2017/12/03 Wuchiapingian-Changhsingian boundary  Biomarker  Organic carbon isotope  Primary productivity  Redox  Zhaojiaba section  MARINE ORGANIC-MATTER  WESTERN HUBEI PROVINCE  TRIASSIC BOUNDARY  MASS EXTINCTION  SULFUR ISOTOPE  BIOTIC CRISIS  BLACK-SEA  ENVIRONMENTAL-CHANGE  HOLOCENE SEDIMENTS  REDOX CONDITIONS   STATUS OF CHAOHUSAURUS CHAOXIANENSIS (CHEN, 1985) 期刊论文 JOURNAL OF VERTEBRATE PALEONTOLOGY, 2015 Motani, Ryosuke; Jiang, Da-Yong; Tintori, Andrea; Rieppel, Olivier; Chen, Guan-Bao; You, Hailu 收藏  |  浏览/下载：3/0  |  提交时间：2017/12/03 ICHTHYOSAURS  EVOLUTION  CHINA