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浏览/检索结果: 共22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 SUPERIORIZATION OF EM ALGORITHM AND ITS APPLICATION IN SINGLE-PHOTON EMISSION COMPUTED TOMOGRAPHY(SPECT) 其他 2014-01-01 Luo, Shousheng; Zhou, Tie 收藏  |  浏览/下载：3/0  |  提交时间：2015/11/13 EM algorithm  superiorization  SPECT image reconstruction  ACCURATE IMAGE-RECONSTRUCTION  LIMITED-ANGLE DATA  PROJECTION METHODS  ORDERED SUBSETS  CT   Novel functional materials with both electrorheological performance and luminescence property 期刊论文 复合材料科学与技术, 2014 Chen, Ming-Xing; Shang, Yan-Li; Jia, Yun-Ling; Li, Jun-Ran 收藏  |  浏览/下载：3/0  |  提交时间：2015/11/10 Functional composite  Electrorheological performance  Luminescence property  Shear stress  Fluorescence emission spectrum  DOPED TIO2  SUSPENSION  FLUIDS   Variations of ground-level O-3 and its precursors in Beijing in summertime between 2005 and 2011 期刊论文 atmospheric chemistry and physics, 2014 Zhang, Q.; Yuan, B.; Shao, M.; Wang, X.; Lu, S.; Lu, K.; Wang, M.; Chen, L.; Chang, C.C.; Liu, S. C. 收藏  |  浏览/下载：3/0  |  提交时间：2015/11/13 VOLATILE ORGANIC-COMPOUNDS  SURFACE OZONE CONCENTRATIONS  REGIONAL BACKGROUND STATION  LONG-TERM CHANGES  AIR-QUALITY  PHOTOCHEMICAL PRODUCTION  SOURCE APPORTIONMENT  NITROGEN-DIOXIDE  SOUTHERN TAIWAN  CHINESE CITIES   Effects of NO (x) and VOCs from five emission sources on summer surface O-3 over the Beijing-Tianjin-Hebei region 期刊论文 大气科学进展英文版, 2014 Qu Yu; An Junling; Li Jian; Chen Yong; Li Ying; Liu Xingang; Hu Min 收藏  |  浏览/下载：2/0  |  提交时间：2015/11/11 O-3  CAMx model  synergistic effect  factor separation technique  emission source  2008 OLYMPIC GAMES  ORGANIC-COMPOUND EMISSIONS  CHEMICAL-TRANSPORT MODEL  GROUND-LEVEL OZONE  PEARL RIVER DELTA  AIR-QUALITY  SOURCE APPORTIONMENT  ATMOSPHERIC POLLUTANTS  SENSITIVITY-ANALYSIS  BIOGENIC EMISSIONS   Submicron aerosols at thirteen diversified sites in China: size distribution, new particle formation and corresponding contribution to cloud condensation nuclei production 期刊论文 atmospheric chemistry and physics, 2014 Peng, J. F.; Hu, M.; Wang, Z. B.; Huang, X. F.; Kumar, P.; Wu, Z. J.; Guo, S.; Yue, D. L.; Shang, D. J.; Zheng, Z.; He, L. Y. 收藏  |  浏览/下载：6/0  |  提交时间：2015/11/13 PEARL RIVER-DELTA  BIOMASS BURNING PARTICLES  OPTICAL-PROPERTIES  FORMATION EVENTS  MEGA-CITY  NORTHERN FINLAND  EASTERN CHINA  AIR-POLLUTION  SULFURIC-ACID  LONG-TERM   Effects of emission-sources reduction at different time points on PM2.5 concentration over Beijing Municipality 期刊论文 zhongguo huanjing kexuechina environmental science, 2014 Zhai, Shi-Xian; An, Xing-Qin; Liu, Jun; Wu, Qi-Zhong; Li, Nan; Zhang, Xiao-Ling 收藏  |  浏览/下载：4/0  |  提交时间：2015/11/13 Evaluating China's biomass power production investment based on a policy benefit real options model 期刊论文 energy, 2014 Wang, Xingwei; Cai, Yanpeng; Dai, Chao 收藏  |  浏览/下载：8/0  |  提交时间：2015/11/11 Biomass power production  Economic evaluation  Policy benefit model  Binomial tree model  Real options approach  Uncertainty  RENEWABLE ENERGY INVESTMENTS  CHANGE IMPACT ANALYSIS  GEOGRAPHIC-DISTRIBUTION  MULTIPLE UNCERTAINTIES  ELECTRICITY PRODUCTION  INTEGRATED APPROACH  SATELLITE STORAGES  ECONOMIC-ANALYSIS  CLIMATE POLICY  GENERATION   Quantum Effects in Double Ionization of Argon below the Threshold Intensity 期刊论文 物理评论快报, 2014 Hao, XiaoLei; Chen, Jing; Li, WeiDong; Wang, Bingbing; Wang, Xiaodong; Becker, Wilhelm 收藏  |  浏览/下载：1/0  |  提交时间：2015/11/13 NONSEQUENTIAL DOUBLE-IONIZATION   Influences of reactant injection velocities on moderate or intense low-oxygen dilution coal combustion 会议论文 Mei, Zhenfeng; Li, Pengfei; Wang, Feifei; Zhang, Jianpeng; Mi, Jianchun 收藏  |  浏览/下载：4/0  |  提交时间：2017/12/03 MILD combustion under different premixing patterns and characteristics of the reaction regime 会议论文 Li, P.; Wang, F.; Mi, J.; Dally, B.B.; Mei, Z. 收藏  |  浏览/下载：2/0  |  提交时间：2017/12/03