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浏览/检索结果: 共6条，第1-6条 帮助 限定条件 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 From Raw Footprints to Personal Interests: Bridging the Semantic Gap via Trip Intention Aggregation 其他 2017-01-01 Guo, Long; Zhang, Dongxiang; Wu, Huayu; Cui, Bin; Tan, Kian-Lee 收藏  |  浏览/下载：8/0  |  提交时间：2017/12/03 Influence Maximization in Trajectory Databases 期刊论文 IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING, 2017 Guo, Long; Zhang, Dongxiang; Cong, Gao; Wu, Wei; Tan, Kian-Lee 收藏  |  浏览/下载：3/0  |  提交时间：2017/12/03 Influence maximization  trajectory databases  location-aware advertising   New Formulas of Shear Strain during Equal-channel Angular Pressing Process with Consideration of Influences of Velocity and Motion Trajectory 期刊论文 JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL, 2016 Zhang, Dian-tao; Li, Zhen; Tong, Yun-xiang; Zheng, Yu-feng; Li, Li 收藏  |  浏览/下载：27/0  |  提交时间：2017/12/03 equal-channel angular pressing  finite element method  shear strain  velocity  motion trajectory  SEVERE PLASTIC-DEFORMATION  FINITE-ELEMENT-METHOD  GRAINED MATERIALS  ALUMINUM-ALLOYS  BACK PRESSURE  ECAP  EXTRUSION  DIE  BEHAVIOR  SIMULATION   Flux Footprints in the Convective Boundary Layer: Large-Eddy Simulation and Lagrangian Stochastic Modelling 期刊论文 boundary layer meteorology, 2010 Cai, Xuhui; Chen, Jiayi; Desjardins, Raymond L. 收藏  |  浏览/下载：3/0  |  提交时间：2015/11/12 Aircraft measurements  Convective boundary layer  Flux footprint  Lagrangian stochastic model  Large-eddy simulation  PARTICLE DISPERSION  QUALITY ASSESSMENT  SURFACE-LAYER  COVARIANCE MEASUREMENTS  TURBULENT DISPERSION  HETEROGENEOUS FOREST  SCALAR FLUXES  BACKWARD  TRAJECTORIES  ATMOSPHERE   Organochlorine pesticides in fresh-fallen snow on east rongbuk glacier of Mt. Qomolangma (Everest) 期刊论文 science in china series d earth sciences, 2007 Wang Feng; Zhu Tong; Xu BaiQing; Kang ShiChang 收藏  |  浏览/下载：2/0  |  提交时间：2015/11/12 Mt. Qomolangma (Everest)  Tibet  organochlorine pesticides  snow  long-range transport  PERSISTENT ORGANIC POLLUTANTS  AIR  CONTAMINANTS  ENVIRONMENT  MOUNTAINS  PATHWAYS   A spatio-temporal database prototype for managing moving objects in GIS 其他 2005-01-01 Han, L; Wu, J; Xie, KQ; Ma, XJ; Xu, D; Zhang, HB; Chen, Z 收藏  |  浏览/下载：3/0  |  提交时间：2015/11/13 spatio-temporal database prototype  moving objects  trajectory model