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浏览/检索结果: 共24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 Geochemistry of ultrapotassic volcanic rocks in Xiaogulihe NE China: Implications for the role of ancient subducted sediments 期刊论文 lithos, 2014 Sun, Yang; Ying, Jifeng; Zhou, Xinhua; Shao, Ji' Chu, Zhuyin; Su, Benxun; an 收藏  |  浏览/下载：8/0  |  提交时间：2015/11/11 Ultrapotassic igneous rocks  Sr-Nd-Hf-Pb-Os isotopes  Sub-continental lithospheric mantle  Ancient subducted sediments  NE China  LITHOSPHERIC MANTLE BENEATH  CENOZOIC ALKALI BASALTS  OCEAN ISLAND BASALTS  RE-OS  NORTHEAST CHINA  TRACE-ELEMENT  ISOTOPIC COMPOSITIONS  EASTERN CHINA  ASTHENOSPHERE INTERACTION  CONTINENTAL-CRUST   Late Early Cambrian archaeocyath reefs in Hubei Province, South China: modes of construction during their period of demise 期刊论文 facies, 2014 Adachi, Natsuko; Nakai, Takashi; Ezaki, Yoichi; Liu, Jianbo 收藏  |  浏览/下载：3/0  |  提交时间：2015/11/11 Archaeocyath  Calcimicrobe  Cambrian  Reef  South China  SHACKLETON LIMESTONE  METAZOAN REEFS  PLATFORM CHINA  AUSTRALIA  COMMUNITIES  EXTINCTION  PATTERNS  EVENT  TRANSITION  MOUNTAINS   Photoactive graphene: chemical functionalization using photosensitive functional group 期刊论文 2014 Deepshikha 收藏  |  浏览/下载：4/0  |  提交时间：2015/11/13 Graphene  Photosensitive azobenzene  Covalent modification  Raman spectroscopy  SINGLE-LAYER GRAPHENE  EPITAXIAL GRAPHENE  ELECTRICAL-PROPERTIES  SUSPENDED GRAPHENE  ARYL GROUPS  FILMS  FABRICATION  MODULATION  AZOBENZENE  REACTIVITY   Photon energy upconversion through thermal radiation with the power efficiency reaching 16% 期刊论文 nature communications, 2014 Wang, Junxin; Ming, Tian; Jin, Zhao; Wang, Jianfang; Sun, Ling-Dong; Yan, Chun-Hua 收藏  |  浏览/下载：3/0  |  提交时间：2015/11/13 RARE-EARTH IONS  MULTIPHONON RELAXATION  SOLAR-CELLS  ZRO2  EXCITATION  SUNLIGHT  CRYSTALS  OPTICS  PHASES  ROUTE   STRONG AVERAGE OPTIMALITY CRITERION FOR CONTINUOUS-TIME MARKOV DECISION PROCESSES 其他 2014-01-01 Wei, Qingda; Chen, Xian 收藏  |  浏览/下载：4/0  |  提交时间：2015/11/16 continuous-time Markov decision processes  strong average optimality criterion  finite-horizon expected total cost criterion  unbounded transition rates  optimal policy  optimal value function  POLISH SPACES  HORIZON  MODELS   Phase Transitions, Prominent Dielectric Anomalies, and Negative Thermal Expansion in Three High Thermally Stable Ammonium Magnesium-Formate Frameworks 期刊论文 chemistry a european journal, 2014 Shang, Ran; Xu, Guan-Cheng; Wang, Zhe-Ming; Gao, Song 收藏  |  浏览/下载：4/0  |  提交时间：2015/11/10 ammonium  dielectric anomaly  metal-organic frameworks  negative thermal expansion  phase transitions  METAL-ORGANIC FRAMEWORKS  WEAK FERROMAGNETISM  SOLID-STATE  LINEAR COMPRESSIBILITY  COORDINATION POLYMERS  PEROVSKITES SYNTHESIS  MOLECULAR MAGNETISM  SINGLE-CRYSTAL  POROUS SOLIDS  DISORDER   pH-responsive inorganic-organic hybrid supramolecular hydrogels with jellyfish-like switchable chromic luminescence 期刊论文 chemical communications, 2014 Wei, Haibing; Shi, Nan; Zhang, Jinlong; Guan, Yan; Zhang, Jie; Wan, Xinhua 收藏  |  浏览/下载：5/0  |  提交时间：2015/11/10 BLOCK-COPOLYMERS  POLYMER  DY3+  COMPOSITES  CHEMISTRY  EMISSION  DELIVERY  RELEASE  DRIVEN  GEL   Preparation and morphology control of amphiphilic block copolymer thin films using mixed solvent vapors 期刊论文 应用表面科学, 2014 Xie, Chan; Zhou, Yu; Zhou, Feng; Wu, Hongwei; Zou, Dechun; Fan, Xinghe; Shen, Zhihao 收藏  |  浏览/下载：3/0  |  提交时间：2015/11/10 Block copolymers  Thin films  Self-assembly  DIBLOCK COPOLYMER  POLY(N,N-DIMETHYLAMINOETHYL METHACRYLATE)  WEAK POLYELECTROLYTES  NANOPOROUS MEMBRANES  SIRNA DELIVERY  GENE DELIVERY  ORIENTATION  POLYMERS  SURFACES  PH   China's Conversion of Cropland to Forest Program for Household Delivery of Ecosystem Services: How Important is a Local Implementation Regime to Survival Rate Outcomes? 期刊论文 forests, 2014 Bennett, Michael T.; Xie, Chen; Hogarth, Nicholas J.; Peng, Daoli; Putzel, Louis 收藏  |  浏览/下载：3/0  |  提交时间：2015/11/13 China  CCFP  sloping land conversion program  grain for green  payments for ecosystem services  rural smallholders  institutions  afforestation  forest restoration  agriculture  tree survival  CONSERVATION SET-ASIDE  LAND CONVERSION  TRANSITION  IMPACTS  GREEN  GRAIN  EXPANSION  VIETNAM  ISSUES   Narrower atomic filter at 422.7 nm based on thermal Ca beam 期刊论文 科学通报 英文版, 2014 Xu, Zhichao; Xue, Xiaobo; Pan, Duo; Zhang, Xiaogang; Zhuang, Wei; Chen, Jingbiao 收藏  |  浏览/下载：3/0  |  提交时间：2015/11/10 Magento-optic  Atomic filter  Sub-Doppler  Laser frequency stabilization  ACTIVE OPTICAL CLOCK  ULTRANARROW  TRANSITION  LINE  DICHROISM  CESIUM  LASER