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Source-to-sink relationships between the Qaidam Basin and its surrounding mountain ranges: New insights from detrital zircon U–Pb ages in modern river sediments

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Journal of Earth Science 2022年

作者： Xu Zhang Bowen Song Tinglu Yang yafei hou Yibo Yang Keke Ai Jiaxuan Wang Kexin Zhang Institute of Geological Survey， China University of Geosciences State Key Laboratory of Biogeology and Environmental Geology， China University of Geosciences School of Earth Sciences， East China University of Technology State Key Laboratory of Tibetan Plateau Earth System， Resources and Environment (TPESRE)， Institute of Tibetan Plateau Research， Chinese Academy of Sciences School of Resource and Environmental Engineering， Mianyang Teachers' College School of Geography and Environment， Jiangxi Normal University

The Cenozoic source-to-sink history of the Qaidam Basin is crucial for understanding of the basin-filling architecture， mountain-building processes and even the dynamics of the Tibetan plateau growth. However， the provenance history of Cenozoic strata in the Qaidam Basin remains ambiguous， especially in the northern Qaidam Basin. This controversy highlights the importance of obtaining the spatial source-to-sink relationships between the Qaidam Basin and its surrounding mountain ranges. In this study， we investigated the detrital zircon U–Pb ages of modern fluvial systems draining the Eastern Kunlun Shan. Their detrital zircon age distributions fall into five age groups: 300-190， 530-360， 1000-560， 2000-1100 and 2650-2000 Ma. The dominant age groups are 530-360 and 300-190 Ma， which represent the successive subduction of the Proto-Tethys and Paleo-Tethys Oceans and the subsequent continental collisions， respectively. Combining these new detrital zircon U–Pb ages with available age datasets， we finally obtained complete detrital zircon age information for modern fluvial systems in the whole Qaidam Basin. The U–Pb age distributions of modern river sands reveal that the zircon age signature of basement rocks in the Eastern Kunlun Shan is significantly different from that in the South Qilian Shan but is similar to that in the Altyn Tagh Shan. Moreover， these zircon age observations were confirmed by the significant difference in the Nd isotopic signature of modern river sands， which reveals a significant difference between the Eastern Kunlun Shan and South Qilian Shan in the formation and evolution process.

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An Immunity-based Security Architecture for Mobile Ad Hoc Networks

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通讯和计算机（中英文版） 2005年第1期2卷 34-40,74页

作者： YI Ping hou yafei ZHONG Yiping ZHANG Shiyong Department of Computing and Information Technology Fudan University 200433 China Graduate School of Engineering Kochi University of Technology Kochi 782-8502 Japan

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人口城市化与构建人口均衡型社会

人口研究 2010年第6期34卷 3-9页

作者：侯亚非北京行政学院北京人口发展研究中心

人口均衡发展并不是一个新概念,但确是需要进行理论讨论、百家争鸣,形成社会共识的一个新理念。文章从中国人口大流动与构建人口均衡型社会关系切入,提出如何实现几亿农民工以市民化为内涵的深度城市化;如何迎接未来几亿农村人口快速进... 详细信息

人口均衡发展并不是一个新概念,但确是需要进行理论讨论、百家争鸣,形成社会共识的一个新理念。文章从中国人口大流动与构建人口均衡型社会关系切入,提出如何实现几亿农民工以市民化为内涵的深度城市化;如何迎接未来几亿农村人口快速进入城镇就业、生活,并保持人口与城市经济、社会、资源、环境的可持续发展,是城市政府面临的艰巨考验。文章分析北京市控制外来人口规模屡屡受挫的困惑,论述了转变城市人口发展理念的意义。主张城市政府应从被动的人口规模控制转向主动构建人口均衡型社会发展目标,转向积极的社会制度创新,正视"新移民"存在的客观事实,突破城市建设、管理以本地户籍人口为规划依据的思维定式,实施一元化人口管理,进而从客观上实现城市人口规模调控的可操作性、实效性,实现城市人口规模与经济社会资源环境的协调、均衡发展。

关键词：人口均衡发展人口流动城市化

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关于“不流动的流动人口”的思考

北京行政学院学报 2006年第6期 10-12页

作者：侯亚非北京市人口发展研究中心北京100044

流动人口问题是事关北京未来发展和社会和谐的紧迫问题。近年来,学界对于北京市的流动人口问题及对策进行了较为集中和深入的研究。本组笔谈涉及了在京流动人口的就业、居住、教育及迁移倾向等问题,反映了北京市流动人口研究的最新成果。

关键词：流动人口市场运行机制区位优势就业机会

Boric Acid-Assisted Pyrolysis for High-Loading Single-Atom Catalysts to Boost Oxygen Reduction Reaction in Zn-Air Batteries

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Energy & Environmental Materials 2024年第2期7卷 106-114页

作者： Chenxi Xu Jiexing Wu Liang Chen Yi Gong Boyang Mao Jincan Zhang Jinhai Deng Mingxuan Mao Yan Shi Zhaohui hou Mengxue Cao Huanxin Li Haihui Zhou Zhongyuan Huang yafei Kuang State Key Laboratory for Chemo/Biosensing and Chemometrics and College of Chemistry and Chemical Engineering Hunan University School of Chemistry and Chemical Engineering Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials Hunan Institute of Science and Technology Advanced Technology Institute University of Surrey Department of Engineering University of Cambridge King’s College London Department of Electrical and Electronic Engineering Imperial College London College of Materials and Metallurgy Guizhou University Department of Chemistry Physical & Theoretical Chemistry Laboratory University of Oxford

The emerging of single-atom catalysts（SACs） offers a great opportunity for the development of advanced energy storage and conversion devices due to their excellent activity and durability, but the actual mass production of high-loading SACs is still challenging. Herein, a facile and green boron acid（H3BO3）-assisted pyrolysis strategy is put forward to synthesize SACs by only using chitosan, cobalt salt and H3BO3as precursor, and the effect of H3BO3is deeply investigated. The results show that molten boron oxide derived from H3BO3as ideal high-temperature carbonization media and blocking media play important role in the synthesis process. As a result, the acquired Co/N/B tri-doped porous carbon framework（Co–N–B–C） not only presents hierarchical porous structure, large specific surface area and abundant carbon edges but also possesses high-loading single Co atom（4.2 wt.%）, thus giving rise to outstanding oxygen catalytic performance. When employed as a catalyst for air cathode in Zn-air batteries, the resultant Co–N–B–C catalyst shows remarkable power density and long-term stability. Clearly, our work gains deep insight into the role of H3BO3and provides a new avenue to synthesis of high-performance SACs.

关键词： boric acid oxygen reduction reaction single-atom catalysts Zn-air batteries

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同煤集团可持续发展策略探析

中国煤炭 2014年第2期40卷 123-125页

作者：侯亚非大同煤炭职业技术学院山西省大同市037003

企业的可持续发展是企业管理者共同关注的焦点。本文在对同煤集团发展现状进行分析的基础上,指出了同煤集团可持续发展中遇到的问题,提出了一些具体的举措和建议,为其健康长远发展提供参考。

关键词：企业战略可持续发展同煤集团

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2006年北京市流动人口家庭户调查报告

新视野 2007年第2期 61-64页

作者：侯亚非洪小良北京行政学院社会学教研部

通过流动人口家庭入户调查,该研究利用第一手资料,概述了北京市流动人口家庭户的突出特征,居京时间趋长、“举家迁移”发展快、京内流动频率低、就业生活较稳定、移民特征日益凸显;在职业分布上向传统服务业、产业链低端领域集中;整体... 详细信息

通过流动人口家庭入户调查,该研究利用第一手资料,概述了北京市流动人口家庭户的突出特征,居京时间趋长、“举家迁移”发展快、京内流动频率低、就业生活较稳定、移民特征日益凸显;在职业分布上向传统服务业、产业链低端领域集中;整体消费水平低、住房简陋、积累比例较高、与家乡保持一定联系;非农户籍流动人口在受教育程度、就业能力、职业层次上显示出较强的竞争优势;在迁移倾向上流动人口表现出较强烈的留居北京的愿望。报告认为,庞大规模的流动人口“不流动”,已形成事实上的城市移民,这成为和谐社会建设、城市社会管理面临的一个现实问题,必须加强城市移民的社会政策改革。

关键词：北京市流动人口家庭户城市新移民

Manipulating Film Formation Kinetics Enables Organic Photovoltaic Cells with 19.5%Efficiency

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CCS Chemistry 2024年第1期6卷 218-229页

作者： Jianqiu Wang Pengqing Bi yafei Wang Zhong Zheng Zhihao Chen Jiawei Qiao Wenxuan Wang Jiayao Li Cunbin An Shaoqing Zhang Xiaotao Hao Jianhui hou State Key Laboratory of Polymer Physics and Chemistry Beijing National Laboratory for Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing 100190 University of Chinese Academy of Sciences Beijing 100049 School of Chemistry and Biological Engineering University of Science and Technology BeijingBeijing 100083 School of Physics State Key Laboratory of Crystal MaterialsShandong UniversityJinan 250100

Organic photovoltaic(OPV)cells have demonstrated remarkable performance in small,spin-coated *** significant challenges persist in the form of large efficiency losses due to the fact that the ideal morphology cannot be preserved in the transition of small-area cells to large-scale ***,the ternary strategy of incorporating the third component FTCC-Br into the active layer of PB2:BTP-eC9 is employed to improve absorption response,optimize morphology,and reduce charge recombination,leading to a power conversion efficiency(PCE)of 19.5%(certified as 19.1%by the National Institute of Metrology,China).Moreover,the addition of FTCC-Br can control the aggregation kinetics of the active layer during the film formation process,transferring the optimal morphology to the blade-coated large-area *** on the highly efficient ternary bulk heterojunction,the 50 cm^(2) OPVmodules exhibited a PCE of 15.2%with respect to the active ***,the ternary OPV cells retain 80%of its initial PCE after 4000 h under continuous *** work demonstrates that the addition of a third component has the potential to improve the efficiency and stability of large-area organic solar cells.

关键词： organic photovoltaic cells morphology control large area cells ternary strategy power conventional efficiency

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北京市迁移流动人口区域分布及结构特征

北京行政学院学报 2005年第2期 36-40页

作者：侯亚非马小红北京行政学院社会学教研部北京100044

本文利用2000年人口普查资料.对北京市1995～2000年户籍迁移人口和流动人口进行了人口学特征以及区域、产业、行业结构特征分析,结合京津冀区域经济发展战略以及"北京城市空间发展战略研究"新思路,探讨首都未来迁移流动人口的流向与分... 详细信息

本文利用2000年人口普查资料.对北京市1995～2000年户籍迁移人口和流动人口进行了人口学特征以及区域、产业、行业结构特征分析,结合京津冀区域经济发展战略以及"北京城市空间发展战略研究"新思路,探讨首都未来迁移流动人口的流向与分布趋势,阐述了城市功能定位、空间布局以及产业结构的新格局必将影响首都人口的规模及再分布。

关键词：流动人口北京市结构特征区域分布 1995-2000年区域经济发展战略人口普查资料发展战略研究城市功能定位人口学特征迁移人口特征分析行业结构城市空间产业结构空间布局新思路新格局首都阐述