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An approach to extracting surface supply relationships between glaciers and lakes on the Tibetan Plateau

International Journal of Digital Earth 2018年第11期11卷 1151-1165页

作者： Bei-Bei Ai cheng-zhi qin qinghua Ye A-Xing Zhu Graham Cogley State Key Laboratory of Resources and Environmental Information System Institute of Geographic Sciences and Natural Resources ResearchCASBeijingPeople’s Republic of China College of Resources and Environment University of Chinese Academy of SciencesBeijingPeople’s Republic of China Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application and School of Geography Nanjing Normal UniversityNanjingPeople’s Republic of China Key Laboratory of Tibetan Environment Changes and Land Surface Processes Institute of Tibetan Plateau ResearchCASBeijingPeople’s Republic of China Department of Geography University of Wisconsin-MadisonMadisonWIUSA Key Laboratory of Virtual Geographic Environment Ministry of EducationNanjing Normal UniversityNanjingPeople’s Republic of China Department of Geography Trent University PeterboroughCanada

Surface supply relationships between glaciers and lakes are needed to analyze and understand hydrological processes at regional and global ***,these supply relationships still cannot be extracted efficiently by existing *** paper proposes an automatic and efficient approach to extracting surface supply relationships between glaciers and lakes based on meltwater flow *** approach includes two stages:(1)identifying direct connections between objects(*** and lakes)based on flow direction derived from digital terrain analysis on a gridded digital elevation model(DEM)and(2)deriving all(or user-specified)kinds of surface supply relationships based on graph *** computation-intensive steps in this approach have been parallelized;and all steps in the proposed approach have been integrated as an automatic *** for the Tibetan Plateau show that given outline data for glaciers and lakes and the Shuttle Radar Topography Mission DEM,the proposed approach can automatically derive diverse surface supply relationships under userspecified restrictions on the attributes of the supply *** parallelization in the approach effectively improves the computing *** proposed approach could also be applied to developing a detailed fundamental dataset of supply relationships between glaciers and lakes for other region or period.

关键词： Glaciers and lakes surface supply relationship digital terrain analysis parallel computing Tibetan Plateau

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Prospects on mangrove knowledge services in the smart era: From plant atlas to knowledge graphs

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Science China Earth Sciences 2024年

作者： zhi-Wei HOU Wenlong JING cheng-zhi qin Ji YANG qing XIA Xiaoling YIN Key Laboratory of Guangdong for Utilization of Remote Sensing and Geographical Information System Guangdong Open Laboratory of Geospatial Information Technology and Application Guangzhou Institute of Geography Guangdong Academy of Sciences Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) State Key Laboratory of Resources and Environmental Information System Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of Sciences College of Resources and Environment University of Chinese Academy of Sciences School of Traffic & Transportation Engineering Changsha University of Science and Technology

Mangroves are crucial to the ecological security of the Earth and human well-being. Their management, conservation, and restoration are of great importance and necessitate the support of spatio-temporal information and multidisciplinary knowledge such as biology and ecology. Traditional knowledge services such as plant atlas provide illustrated textual knowledge of mangroves. However, this kind of service is oriented to information retrieval and is incapable of effectively mining and utilizing fragmented knowledge from multi-source heterogeneous data, facing the problem of “massive data, rare knowledge”. Knowledge graphs are capable of extracting, organizing, and fusing the knowledge contained in massive data into semantic networks that can be understood and computed by computers. They provide a solution for the realization of intelligent knowledge services. Focusing on the urgent need for mangrove knowledge acquisition, formal representation, and intelligent services, this paper proposes a research prospect on mangrove knowledge graphs and knowledge services. We first analyze the similarities and differences between various domain-specific concepts of Tupu. On this basis, we define the mangrove knowledge graph as a large-scale knowledge base that integrates multi-disciplinary knowledge and spatio-temporal information with mangrove ecosystems as the core. Then, we propose a research framework for mangrove knowledge services that can realize the transformation from multi-modal data to intelligent knowledge services, including multiple research levels such as ubiquitous data sensing and aggregation, knowledge organization and graph construction, and intelligent mangrove knowledge services. Subsequently, the methods and workflow for constructing mangrove knowledge graphs are introduced. Finally, we discuss the challenges and possible future directions of mangrove knowledge services in the smart era, including the construction of a mangrove knowledge system that integra

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Effect of Indigenous Nitrogen Supply of Soil on the Grain Yield and Fertilizer-N Use Efficiency in Rice

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Rice science 2005年第4期12卷 267-274页

作者： LIU Li-jun Xu Wei TANG cheng WANG zhi-qin YANG Jian-chang Key Laboratory of Crop Genetics and Physiology of Jiangsu Province Yangzhou University Yangzhou 225009 China

The effects of application of N fertilizer on wheat on the grain yield and N use efficiency （FNUE） of rice in the wheat-rice rotation system, as well as on the soil fertility were studies. N-fertilizer application on wheat significantly increased total N, arnrnoniurn-N and nitrate-N contents in paddy field, resulting in high indigenous N supply of soil （INS）. Compared with low INS, the effect of N rate on the grain yield of rice was reduced significantly, and FNUE was decreased under high INS. These results indicated that high INS was one of the main reasons for the low FNUE in rice.

关键词： soil indigenous nitrogen supply soil fertility rice yield fertilizer use efficiency nitrogen

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GCr15钢气体渗氮+淬火复合处理及干摩擦行为

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中国表面工程 2016年第6期29卷 30-37页

作者：张国松崔洪芝程贵勤山东科技大学材料科学与工程学院山东青岛266590 青州海盾液压机械有限公司山东青州262500

用气体渗氮+淬火(N+Q)复合处理技术对GCr15进行表面强化,并与单纯的气体渗氮、淬火进行比较,系统研究了硬化层的物相、组织结构及干摩擦特性。结果表明:530℃气体渗氮9 h后,渗氮层的化合物层为ε相,厚度约为40μm;而渗氮之后淬火(N+Q)... 详细信息

用气体渗氮+淬火(N+Q)复合处理技术对GCr15进行表面强化,并与单纯的气体渗氮、淬火进行比较,系统研究了硬化层的物相、组织结构及干摩擦特性。结果表明:530℃气体渗氮9 h后,渗氮层的化合物层为ε相,厚度约为40μm;而渗氮之后淬火(N+Q)复合处理使氮化物完全分解,促使N元素向基体扩散,扩散区深约900μm,N固溶强化作用使得扩散区硬度比淬火硬度约高200 HV0.1,但是因氮化物分解产生孔隙致使表层硬度下降。分别在20 N和100 N载荷进行往复干摩擦试验,气体渗氮与N+Q复合处理都能有效降低摩擦因数。在20 N载荷时,N+Q复合处理试样体积磨损率低于渗氮与淬火试样;而在100 N载荷时,因其表面孔隙,使得初始磨损比淬火试样严重,但是磨损一段时间后耐磨性能提高。

关键词：淬火气体渗氮复合处理摩擦因数抗磨

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Zwitterionic hyaluronic acid derivatives for co-delivery of both chemotherapeutic and nucleic acid drugs in breast cancer treatment

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Nano Research 2025年第1期18卷 607-617页

作者： Ruo-Lin Jiang Hui-Na Liu Yu-Fan Yang zhi-cheng Zhang Qi Dai Xiao-Yan Bao Lin-Jie Wu Ya-Xin qin Xin Tan Xiao-Yan Sun Xu-Fang Ying zhi-qing Ben Min Han Institute of Pharmaceutics College of Pharmaceutical SciencesZhejiang UniversityHangzhou 310058China Department of Radiation Oncology Key Laboratory of Cancer Prevention and InterventionThe Second Affiliated HospitalCollege of MedicineZhejiang UniversityHangzhou 310058China Hangzhou Institute of Innovative Medicine Zhejiang UniversityHangzhou 310058China Jinhua Institute of Zhejiang University Jinhua 321299China National Key Laboratory of Advanced Drug Delivery and Release Systems Zhejiang UniversityHangzhou 310058China Polytechnic institute Zhejiang UniversityHangzhou 310015China

Traditionally,hyaluronic acid has been widely used for drug delivery,but the current application bottleneck is that hyaluronic acid is hydrophilic and electronegative,which makes it difficult to carry hydrophobic drugs and small interfering RNA(siRNA)with the same *** on previous studies,we designed and synthesized hyaluronic acid nanocarriers HA-spermine/N,N,N-trimethylcystamine/DOX-TPP(HSTD)for loading siRNA to overcome the problem of siRNA release caused by strong electrostatic ***,N,N,Ntrimethylcystamine in the carrier can be degraded by intracellular glutathione to completely and rapidly release siRNA,thus promoting ***,when codelivered with the chemotherapy drug doxorubicin(DOX),this novel nanocarrier showed promising synergy in inhibiting tumor growth.

关键词： zwitterionic hyaluronic acid N N N-trimethylcystamine small interfering RNA(siRNA) doxorubicin

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Real-world evidence on the efficacy and safety of vonoprazanamoxicillin dual therapy for Helicobacter pylori treatment in elderly patients

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World Journal of Gastroenterology 2025年第1期31卷 68-78页

作者： Wen Gao Jing-Wen Li Hui Ye Xue-zhi Zhang Jian-Xiang Liu Hong cheng Department of Gastroenterology Peking University First HospitalBeijing 100034China School of Medicine Tsinghua MedicineTsinghua UniversityBeijing 100034China Department of Traditional Chinese Medicine and Integrative Medicine Peking University First HospitalBeijing 100034China

BACKGROUND A dual therapy regimen containing amoxicillin is a common treatment option for the eradication of Helicobacter pylori(***).While substantial research supports the efficacy and safety of vonoprazan and amoxicillin(VA)dual therapy in the general population,there is still a lack of studies specifically focusing on its safety in elderly *** To evaluate efficacy and safety of VA dual therapy as first-line or rescue treatment for *** in elderly *** As a real-world retrospective study,data were collected from elderly patients aged 60 years and above who accepted VA dual therapy(vonoprazan 20 mg twice daily+amoxicillin 1000 mg thrice daily for 14 days)for *** eradication in the Department of Gastroenterology at Peking University First Hospital between June 2020 and January *** status was evaluated by^(13)C-urease breath test 6 weeks after *** adverse events(AEs)during treatment were *** In total,401 cases were ***-one cases were excluded due to loss to follow-up,lack of re-examination,or unwillingness to take *** total of 380 included cases comprised 250 who received VA dual therapy as first-line treatment and 130 who received VA dual therapy as rescue *** was successfully eradicated in 239 cases(95.6%)in the first-line treatment group and 116 cases(89.2%)in the rescue treatment *** overall incidence of AEs was 9.5%for both ***,9.2%of patients experienced an AE in the first-line treatment group and 10.0%in the rescue treatment *** patients discontinued treatment due to AE,with a discontinuation rate of 1.3%.No serious AE *** The VA dual therapy regimen as a first-line treatment and a rescue therapy was effective and safe for elderly patients aged 60 and older.

关键词： Helicobacter pylori Vonoprazan Amoxicillin Dual therapy Elderly

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Magnetron sputtered nickel oxide with suppressed interfacial defect states for efficient inverted perovskite solar cells

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Journal of Energy Chemistry 2025年第1期100卷 348-355页

作者： Guoqiang Ma qin Tan Zhaoning Li Jingwei Xiu Jiafeng Wang Tianle cheng Dong He Qiang Sun Xuhang Ma Francesco Lamberti Zhubing He Department of Materials Science and Engineering Institute of Innovative Materials (I2M) Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG)Southern University of Science and Technology (SUSTech) Core Research Facilities Southern University of Science and Technology Department of Chemical Sciences Department of Industrial Engineering University of Padova

Widely used spin-coated nickle oxide （NiOx） based perovskite solar cells often suffer from severe interfacial reactions between the NiOxand adjacent perovskite layers due to surface defect states,which inherently impair device performance in a long-term view,even with surface molecule *** this study,we developed high-quality magnetron-sputtered NiOxthin films through detailed process optimization,and compared systematically sputtered and spin-coated NiOxthin film surfaces from materials to *** sputtered NiOxfilms exhibit improved crystallinity,smoother surfaces,and significantly reduced Ni3+or Ni vacancies compared to their spin-coated ***,the interface between the perovskite and sputtered NiOxfilm shows a substantially reduced density of defect *** solar cells （PSCs） fabricated with our optimally sputtered NiOxfilms achieved a high power conversion efficiency （PCE） of up to 19.93%and demonstrated enhanced stability,maintaining 86.2% efficiency during 500 h of maximum power point tracking under one standard sun ***,with the surface modification using (4-(2,7-dibromo-9,9-dimethylacridin-10（9H）-yl)butyl)p hosphonic acid （DMAcPA）,the device PCE was further promoted to 23.07%,which is the highest value reported for sputtered NiOxbased PSCs so far.

关键词： Nickle oxide Magnetron sputter Defect Stability Perovskite solar cell

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基于Linux开源的聚合社区的研究意义

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价值工程 2018年第27期37卷 208-209页

作者：敖成考秦智成都信息工程大学网络空间安全学院成都610225

当今,计算机专业、网络与安全专业、物联网专业的学生就业的技能与社会人才需求的脱节,迫切需要有一种平台来改变学生的实践技能,实践技能的训练是建立在现有的课程教学体制上,以提高学生课外专业实践能力,培养学生自主学习、知识分享,... 详细信息

当今,计算机专业、网络与安全专业、物联网专业的学生就业的技能与社会人才需求的脱节,迫切需要有一种平台来改变学生的实践技能,实践技能的训练是建立在现有的课程教学体制上,以提高学生课外专业实践能力,培养学生自主学习、知识分享,学长带学弟和学妹。因此,提出了由学生建立自己的基于Linux开源的聚合社区,老师参与指导的模式,具有解决学生自主学习、兴趣小组、知识分享的问题,建立在校学生与外界企业的学长沟通的桥梁,对学生专业能力的提高和就业来说具有重要的研究意义。

关键词： Linux开源社区开源意义网络与安全物联网

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一种像增强器图像失真的校正方法

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深圳大学学报（理工版） 2006年第3期23卷 258-262页

作者：邓志成杨勤劳深圳大学光电子学研究所深圳518060

基于静电聚焦像增强器图像畸变产生的机理,建立图像几何畸变和亮度失真校正的数学模型,并编制校正软件包.作为实际应用,对一种40/13像增强器的输出图像进行了畸变和亮度校正,用最大畸变为17.2%,亮度均匀性为75%的像增强器原输出图像,经... 详细信息

基于静电聚焦像增强器图像畸变产生的机理,建立图像几何畸变和亮度失真校正的数学模型,并编制校正软件包.作为实际应用,对一种40/13像增强器的输出图像进行了畸变和亮度校正,用最大畸变为17.2%,亮度均匀性为75%的像增强器原输出图像,经校正后,畸变减小为3.4%,亮度均匀性达到90%.该校正方法和软件还可用于其他因径向线性放大率变化而造成图像畸变的校正.

关键词：电子光学系统畸变校正像增强器

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浅谈影响压电式传感器高频响应的因素

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烟台职业学院学报 2005年第3期11卷 68-72页

作者：程志勤罗佩云山东烟台264003 江苏大学理学院烟台教育学院应用工程系江苏镇江212013

综述压电材料传感器频率响应的主要影响因素和国内外对超高频传感器的研究发展状况,介绍工作尺寸等对传感器频率响应的影响规律。在此基础上,力求从规律中为得到一种1GHz以上的压电传感器指明方向,并结合无损检测技术应用到材料微结构... 详细信息

综述压电材料传感器频率响应的主要影响因素和国内外对超高频传感器的研究发展状况,介绍工作尺寸等对传感器频率响应的影响规律。在此基础上,力求从规律中为得到一种1GHz以上的压电传感器指明方向,并结合无损检测技术应用到材料微结构、微缺陷的检测中,从而开辟压电传感器新的应用领域。

关键词：压电材料传感器高频响应影响因素

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