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| 1 | A framework for mixed-use decomposition based on temporal activity signatures extracted from big geo-data显示文摘Mixed use has been extensively applied as an urban planning principle and hinders the study of single urban functions.To address this problem,it is worth decomposing the mixed use.Inspired by the concept of spectral unmixing in remote sensing applications,this paper proposes a framework for mixed-use decomposition based on big geo-data.Mixeduse decomposition in terms of human activities differs from traditional land use research,and it is more reasonable to infer the actual urban function of land.The framework consists of four steps,namely temporal activity signature extraction,urban function base curve extraction,mixeduse decomposition,and result validation.First,the temporal activity signatures(TASs)of each zone are extracted as the proxy of human activity patterns.Second,the diurnal TASs of routine activities are extracted as urban function base curves(i.e.endmembers).Third,a linear decomposition model is used to decompose the mixed use and obtain multiple results(urban function composition,dynamic activity proportions,and the mixing index).Finally,result validation strategies are concluded.This framework offers method extensibility and has few requirements for the input data.It is validated by means of a case study of Beijing,based on a social media check-in dataset. | Lun Wu Ximeng Cheng Chaogui Kang Di Zhu Zhou Huang Yu Liu | 2020 | International Journal of Digital Earth2020，13，6： | 2 |
| 2 | A Verification-Based Approach to Evaluate Software Architecture Evolution显示文摘As the development and wide usage of Software architecture(SA),SA evolution becomes one of the hotspots of current research in modern software engineering domain.Most current researches concentrate on the modeling of SA evolution and lack the verification and evaluation of SA evolution.We proposed a verificationbased approach to evaluate SA evolution.The basic process includes:1)using Unified modeling language(UML)sequence diagram to model the interaction of components and study different types of evolution in practical examples;2)using SPIN-based model checking to model and verify SA evolution;3)comparing various verification outcomes and analyzing the influence of SA evolution on SA correctness and temporal properties.Both theory analysis and an experiment on a real evolution example from Model-view controller(MVC)to Spring web MVC(SWMVC)show that the verification-based approach to evaluate SA is significant. | LI Bixin LIAO Li YU Ximeng | 2017 | Chinese Journal of Electronics2017，26，3： | 1 |
| 3 | 基于排污许可量等额分配的淮安市清安河氨氮污染防治研究显示文摘通过多年环境监测资料分析,淮安市清安河水质污染主要因子为氨氮。通过现场调查和科学计算,弄清了污水处理厂、生活污染源、工业污染源、农业污染源氨氮入河情况。针对责任主体明确的排放口和排污单位,采用污染排放与水质响应关系等综合考虑现状排污格局、污染源可控性和经济技术可行性等因素,统筹兼顾公平与效率,将允许排放量等比例逐一分配至各排污单位,拟定许可排放量,进行污染控制。 | 朱群 Shu Wei Yu Ximeng Li Bingfeng Zhang Yan Kong Hongtao | 2018 | 环境研究与监测2018，31，4： | 0 |
| 4 | X-ray Emission from Zr, Mo, In and Pb Targets Bombarded by Slow Highly Charged Ar^(q+) (q=13, 14, 15, 16) Ions显示文摘Highly charged Arq+ (q=13, 14, 15, 16) ions were provided by a 14.5 GHz ECR ion source. Highly charged ions were extracted and m/q-selected (where m is the ion mass and q is the ion charge) by an analyzing magnet. The ion beams were charge state-selected again before entering into the target chamber by a 64°coaxial | Cai Xiaohong Yu Deyang Lu Rongchun Shao Caojie Lu Jun Ruan Fangfang Zhang Hongqiang Cui Ying Xu Xu Shao Jianxiong Ding Baowei Yang Zhihu Chen Ximeng | 2004 | 近代物理研究所和兰州重离子加速器实验室年报:英文版2004，，1： | 0 |
| 5 | Bare Isotope Ions ^(13)C^(6+) Collide with Helium, Neon and Argon in ECRIS Energies显示文摘Multi-electron process in highly charged ions colliding with atoms has been an active area since 1980s. Ion-Atom collision study is important not only to understand many-body interaction dynamics, but also be demanded by application research such as controlled fusion which is based on plasma physics. Bare ions are | Yu Deyang Cai Xiaohong Lu Rongchun Shao Caojie Lu Jun Ruan Fangfang Zhang Hongqiang Cui Ying Xu Xu Shao Jianxiong Ding Baowei Yang Zhihu Chen Ximeng | 2004 | 近代物理研究所和兰州重离子加速器实验室年报:英文版2004，，1： | 0 |
| 6 | Vacant Level Structure (VLS) Dependence in Isocharged Sequence Ions Collision with Helium显示文摘In highly charged ions(HCI)-atom collisions, many electrons are active and much more channels are opened, and the collision dynamics therefore is much more complicated. Because of the complexity originated from many active electrons which are involved in HCI and atoms collisions, the full quantum treatment is rather difficult, whereas the simple classical over-the-barrier models and semiempirical | Yu Deyang Cai Xiaohong Lu Rongchun Ruan Fangfang Shao Caojie Lu Jun Zhang Hongqiang Cui Ying Xu Xu Shao Jianxiong Ding Baowei Yang Zhihu Chen Ximeng Liu Zhaoyuan | 2005 | 近代物理研究所和兰州重离子加速器实验室年报:英文版2005，，1： | 0 |
| 7 | Multi-electron Processes in ^(13)C^(6+) Ions with Neon Collisions in Energy Region 4.15~11.08 keV/u显示文摘The cross-section ratios-ofσDE/σSC,σTE/σSC,σQE/σSC andσME/σSC as well as the relative ratios among reaction channels in double-electron active, triple-electron active and quadruple-electron active are measured in I3C6+-Ne collision in the energy region of 4. 15-11. 08 keV/u by employing position-sensitive and timeof -flight coincident techniques. The bare isotope 13C6+ ions were provided by 14. 5 GHz ECR ion source | Ruan Fangfang Cai Xiaohong Yu Deyang Lu Rongchun Shao CaoJie Lu Jun Cui Ying Shao Jianxiong Xu Xu Zhang Hongqiang Ding Baowei Yang Zhihu Chen Ximeng | 2005 | 近代物理研究所和兰州重离子加速器实验室年报:英文版2005，，1： | 0 |
| 8 | Petroleum geological features and hydrocarbon enrichment of Linhe Depression in Hetao Basin, NW China显示文摘Based on paleogeomorphology, drilling and seismic data, this paper systematically studies the structural and sedimentary evolution, source rock characteristics, reservoir characteristics and formation mechanism, hydrocarbon accumulation model and enrichment law in the Linhe Depression of the Hetao Basin, NW China. The Hetao Basin mainly experienced three stages of evolution, namely, weak extensional fault depression, strong extensional fault depression and strike-slip transformation, giving rise to four positive structural belts(Jilantai, Shabu, Nalinhu and Xinglong), which are favorable areas for oil and gas accumulation. The two main saline lacustrine source rocks, Lower Cretaceous Guyang Formation and Oligocene Linhe Formation, are characterized by high sulfur content, rich algae, early maturity, early expulsion, and wide oil generation window. The large structural transition belt in the intermountain area around the Hetao Basin controls the formation of large-scale braided river delta deposits, which are characterized by high quartz content(50%-76%), long-term shallow burial and weak compaction, low cement content, and good reservoir properties in delta front sandbody. The burial depth of the effective Paleogene reservoirs is predicted to reach 8000 m. Three hydrocarbon accumulation models, nose-uplift near sag, buried hill surrounding sag, fault nose near source rock, are constructed. The law of hydrocarbon accumulation in the Linhe Depression is finally clarified as follows: near-source around the depression is the foundation, high-quality thick reservoir is the premise, good tectonic setting and trap conditions are the key. | ZHANG Ruifeng HE Haiqing ZHU Qingzhong CHEN Shuguang LIU Xiheng DAN Weining HU Yanxu SHI Yulei ZHANG Yufei YU Haijun ZHANG Ximeng | 2023 | Petroleum Exploration and Development2023，50，4： | 0 |
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