QQ客服 官方微博 反馈留言

浏览/检索结果: 共12条，第1-10条 帮助 限定条件 发表日期：2014    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 A new species of Largocephalosaurus (Diapsida: Saurosphargidae), with implications for the morphological diversity and phylogeny of the group 期刊论文 geological magazine, 2014 Li, Chun; Jiang, Da-Yong; Cheng, Long; Wu, Xiao-Chun; Rieppel, Olivier 收藏  |  浏览/下载：5/0  |  提交时间：2015/11/16 marine reptile  morphology  phylogeny  Triassic  China  SOUTHWESTERN CHINA  MARINE REPTILE  EOSAUROPTERYGIAN DIAPSIDA  ET-AL.  SAUROPTERYGIA  PANXIAN  GUIZHOU  OSTEOLOGY  PROVINCE  FAUNA   北京温榆河冲洪积扇地面沉降特征及机理研究 期刊论文 上海国土资源, 2014 王荣; 罗勇; 杨艳; 周毅; 刘明坤 收藏  |  浏览/下载：5/0  |  提交时间：2015/11/11 冲洪积扇  地面沉降  地下水开采  弹塑性形变  固结历史  al uvial fans  land subsidence  groundwater pumping  elastic-plastic deformation  consolidation history   Efficient synthesis of 1,1-diethoxyethane via sequential ethanol reactions on silica-supported copper and H-Y zeolite catalysts 期刊论文 catalysis today, 2014 He, Xiaohui; Liu, Haichao 收藏  |  浏览/下载：3/0  |  提交时间：2015/11/10 Ethanol  1,1-Diethoxyethane  Cu catalysts  H-Y zeolites  Two-step synthesis  AL-O CATALYST  ETHYL-ACETATE  SELECTIVE OXIDATION  DIRECT CONVERSION  OXIDE  DEHYDROGENATION  ACETALDEHYDE  METHANOL  DIETHYLACETAL  NANOPARTICLES   Insights into sorption species of Eu(III) on gamma-Al2O3 and bentonite under different pH: Studies at macro- and micro-scales 期刊论文 journal of radioanalytical and nuclear chemistry, 2014 Fan, Qiaohui; Li, Ping; Zheng, Zhong; Wu, Wangsuo; Liu, Chunli 收藏  |  浏览/下载：5/0  |  提交时间：2015/11/10 Sorption  gamma-Al2O3  Bentonite  XAS  Surface complexation model  Eu(III)  IONIC-STRENGTH  HUMIC-ACID  FULVIC-ACID  EUROPIUM RETENTION  GAMMA-ALUMINA  CONTACT TIME  EXAFS  BATCH  COMPLEXATION  SPECTROSCOPY   Determination Time of the Mononuclear Aluminum Species in the Hydroxyl Polyaluminum Solution by Ferron (7-iodine-8-hydroxyquinoline-5-sulfonic Acid)-Timed Spectrometry 期刊论文 spectroscopy letters, 2014 Zhang, Jing; Ren, Yijin; Chang, Fang; Shi, Qiuyi 收藏  |  浏览/下载：4/0  |  提交时间：2015/11/11 determining time of mononuclear Al  Ferron-timed spectrophotometry  mononuclear aluminum  HYDROXYALUMINUM SOLUTIONS  RELATIVE IMPORTANCE  AL(III) SPECIATION  ORGANIC-MATTER  COAGULATION  WATER  CHLORIDE  AL  HYDROLYSIS  REMOVAL   Enhancement Mode (E-Mode) AlGaN/GaN MOSFET With 10(-13) A/mm Leakage Current and 10(12) ON/OFF Current Ratio 期刊论文 ieee electron device letters, 2014 Xu, Zhe; Wang, Jinyan; Cai, Yong; Liu, Jingqian; Jin, Chunyan; Yang, Zhenchuan; Wang, Maojun; Yu, Min; Xie, Bing; Wu, Wengang; Ma, Xiaohua; Zhang, Jincheng; Hao, Yue 收藏  |  浏览/下载：3/0  |  提交时间：2015/11/10 Post-gate annealing (PGA)  GaN  enhancement mode  MOSFET  ON/OFF current ratio  mesa isolation current  GAN MIS-HEMTS  AL2O3/GAN MOSFET  INTERFACE   Al2O3/AlN/GaN MOS-Channel-HEMTs With an AlN Interfacial Layer 期刊论文 ieee electron device letters, 2014 Liu, Shenghou; Yang, Shu; Tang, Zhikai; Jiang, Qimeng; Liu, Cheng; Wang, Maojun; Chen, Kevin J. 收藏  |  浏览/下载：5/0  |  提交时间：2015/11/16 Al2O3/AlN/GaN  interfacial layer  normally off  MOS-channel-HEMT  recess  AL2O3/GAN MOSFET  PERFORMANCE   Effect of B2O3 addition on viscosity of mould slag containing low silica content 期刊论文 ironmaking and steelmaking, 2014 Huang, X. H.; Liao, J. L.; Zheng, K.; Hu, H. H.; Wang, F. M.; Zhang, Z. T. 收藏  |  浏览/下载：4/0  |  提交时间：2015/11/16 Viscosity  B2O3  Break temperature  FTIR  BORATE GLASSES  TRIP STEELS  FLUXES  RAMAN  TRANSFORMATION  BEHAVIOR  SPECTRA  MELTS  AL  SI   Experimental investigation and modeling of cooling processes of high temperature slags 期刊论文 energy, 2014 Sun, Yongqi; Shen, Hongwei; Wang, Hao; Wang, Xidong; Zhang, Zuotai 收藏  |  浏览/下载：4/0  |  提交时间：2015/11/11 Slag  Heat recovery  Cooling process  Glass forming ability  Cooling rate  BLAST-FURNACE SLAG  STEEL-INDUSTRY  THERMAL-CONDUCTIVITY  ENERGY EFFICIENCY  HEAT-TRANSFER  SYSTEM  AL2O3  CRYSTALLIZATION  SOLIDIFICATION  GRANULATION   The structural transitions of Ti3AlC2 induced by ion irradiation 期刊论文 acta materialia, 2014 Yang, Tengfei; Wang, Chenxu; Taylor, Caitlin A.; Huang, Xuejun; Huang, Qing; Li, Fangzhi; Shen, Lu; Zhou, Xiaobin; Xue, Jianming; Yan, Sha; Wang, Yugang 收藏  |  浏览/下载：5/0  |  提交时间：2015/11/11 Irradiation effect  Order-to-disorder phase transformations  Electron diffraction pattern  Ceramics  TRANSMISSION ELECTRON-MICROSCOPY  AL-C SYSTEM  HE IRRADIATION  MICROSTRUCTURAL CHARACTERIZATION  RADIATION TOLERANCE  DAMAGE EVOLUTION  THIN-FILMS  TI3SIC2  ZIRCONIA  CERAMICS