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Stable Isotopes in Precipitation and Atmospheric Moisture of Pailugou Catchment in Northwestern China′s qilian Mountains

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Chinese Geographical Science 2017年第1期27卷 97-109页

作者： FENG Fang FENG qi LIU Xiande WU Jinkui LIU Wei School of Geography Geomatics and Planning Jiangsu Normal University Xuzhou 221116 China Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences Lanzhou 730000 China Institute of Water Resources Conservation Forests in qilian Mountains Zhangye 734000 China

Hydrogen and oxygen isotopes in precipitation have been widely used as effective traces to investigate hydrological processes such as evaporation and atmospheric moisture source. This study analyzed δD and δ^(18)O of precipitation in continuous event-based samples at three stations of Pailugou Catchment from November 2012 to December 2013. The δ^(18)O and δD values ranged from-32.32‰ to +3.23‰ and from-254.46‰ to +12.11‰, respectively. Results show that the δ^(18)O displayed a distinct seasonal variation, with enriched values occurring in summer and relatively depleted values in winter, respectively. There was a statistically significant positive correlation between the δ^(18)O and δD values and local surface air temperature at all the three stations. The nearest Global Network of Isotopes in Precipitation(GNIP) station(Zhangye), compared to the Meteoric Water Lines for this study, showed the obvious local evaporation effects with lower intercept and slope. Additionally, d-excess(δD- 8δ^(18)O) parameter in precipitation exhibited an anti-phase seasonal variability with the δ^(18)O. The 96-h back trajectories for each precipitation event using Hybrid Single Particle Lagrangian Integrated Trajectory(HYSPLIT) model indicated a dominant effect of westerly air masses in summer and the integrated influence of westerly and polar air masses in winter.

关键词： meteoric precipitation δ^18O and δD d-excess moisture source Pailugou Catchment

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Poly-Acrylic Acid Derivatives as Diesel Flow Improver for Paraffin-Based Daqing Diesel

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Journal of Natural Gas Chemistry 2006年第3期15卷 217-222页

作者： Cuiyu Jiang Ming Xu Xiaoli Xi Panlun qi Hongyan Shang College of Chemistry and Chemical Engineering China University of Petroleum Dongying 257061 China Research Institute of Daqing Petroleum Co. SINOPEC Daqing 163714 China

Since the diesel products from paraffin-based Daqing crude oil showed low sensitivity to certain commercial diesel pour point depressant （PPDs） that resulted from the high content of paraffin, certain poly-acrylic acid derivatives （PADE） with-COOR, -COOH,-CONHR, and -COO-NH3^＋R groups by molecular design on the mechanics of diesel; PPDs were synthesized and evaluated as cold flow improver for Daqing 0^# diesel in this paper. The pure PADE was superior to the commercial PPDs and displayed a substantial ability of wax crystals dispersion. There was a synergistic effect among the PADE and T1804 and secondary amine. The synergism clearly improved the low temperature performance of Daqing diesel products and could reduce the cold filter plugging point of 0^# diesel by 6-7 ℃.

关键词： diesel cold flow improver acrylic acid cold filter plugging point

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多模态场景下AIGC的应用综述

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计算机科学与探索 2025年第1期19卷 79-96页

作者：岳颀张晨康西安邮电大学自动化学院西安710121

虽然生成式人工智能(AIGC)已经能够在单一模态应用领域取得优异成果,可以利用人工智能技术生成文字、图像、视频等内容,但单一模态的特征表示很难完整包含某个现象的完整信息。为了提高模型的学习性能和生成能力,学者们提出将多模态信... 详细信息

虽然生成式人工智能(AIGC)已经能够在单一模态应用领域取得优异成果,可以利用人工智能技术生成文字、图像、视频等内容,但单一模态的特征表示很难完整包含某个现象的完整信息。为了提高模型的学习性能和生成能力,学者们提出将多模态信息应用在AIGC中。AIGC能够对输入的多模态信息进行融合,获取更丰富的上下文信息,帮助模型更好地理解和生成内容。深入探讨了AIGC处理多模态问题的基本架构、工作原理和挑战,并对近年来与多模态信息结合的AIGC模型进行了分类和归纳。总结了AIGC在多模态图像生成、视频生成、三维形状生成等方面的应用、挑战和发展方向。在图像生成方面,讨论了生成对抗网络(GAN)模型、扩散模型等技术的应用和局限性。在视频生成方面,分析了基于扩散模型的视频生成技术,并探讨了音视频联合生成的方法。在三维形状生成方面,探讨了扩散模型和神经网络指导下的三维形状生成方法。最后提出了AIGC面临的挑战与未来潜在的研究方法。

关键词：生成式人工智能(AIGC) 多模态大语言模型

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Analysis of Energy Saving Reconstruction of Existing Campus Dormitories in Chongqing——Taking Dormitory Six on Campus B of Chongqing University as An Example

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Journal of Harbin Institute of Technology(New Series) 2014年第4期21卷 96-102页

作者： Wen-Jing Dong Tie-Jun Zhou Run-Zhao qi Chongqing University Faculty of Architecture and Urban Planning Key Laboratory of New Technology for Construction of Cities in Mountain Area

At present,a large number of historic buildings on campus are lack of energy-saving measures from the design time,especially the dormitories. And the reconstruction mostly focuses on functional reorganization or furniture replacement. However,energy efficiency design has not been paid enough attention,which leads to the high building energy consumption and the harsh physical environment. Based on the analysis of climatic characteristics of Chongqing area,taking Dormitory Six on campus B of Chongqing University as an example,the reconstruction of rooms on the top floor and West end are focused to guarantee the equal benefits of the dormitory environment. Through the simulation analysis of the software, on the basis of energy saving reconstruction of common maintenance structure,this thesis discusses the energy saving reconstruction methods and strategies of the existing campus dormitories,which are more suitable for the existing campus dormitories in Chongqing area.

关键词： campus dormitories in Chongqing energy-saving reconstruction optimization reconstruction design planted roof greening of West walls

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有限性与延展性:新中国国家安全思想的演进

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国际安全研究 2025年第1期43卷 73-95,157页

作者：祁昊天赵书韫北京大学国际关系学院国家安全学系北京100871

文章从国家安全本体论、安全体系认识论与安全实践方法论三个维度考察新中国的国家安全思想,以社会主义革命和建设时期、改革开放和社会主义现代化建设新时期以及中国特色社会主义新时代进行时间分段,讨论新中国国家安全思想的演进。有... 详细信息

文章从国家安全本体论、安全体系认识论与安全实践方法论三个维度考察新中国的国家安全思想,以社会主义革命和建设时期、改革开放和社会主义现代化建设新时期以及中国特色社会主义新时代进行时间分段,讨论新中国国家安全思想的演进。有限性与延展性是这一演进过程中安全思想的连贯体现,分别涵盖了安全目标、认知与方法在各阶段静态与动态、横向与纵向的特征。虽然新中国在不同时期面临不同的安全环境和安全需求,安全形势愈加复杂,但是安全思想和实践总体符合安全有限、延展演进的特征。安全具有弹性但不可过载,不存在绝对安全的空间,而狭义的、单一领域或维度的安全亦无法有效支撑对国家安全的维护,特别是在愈加复杂和不确定的国家安全环境中更是如此。新中国国家安全思想“有限—延展”的演进特征反映了安全环境的客观变化与领导人主观能动的决策部署。

关键词：国家安全思想演进有限性延展性

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Effects of climate change and land use/cover change on the volume of the qinghai Lake in China

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Journal of Arid Land 2022年第3期14卷 245-261页

作者： WANG Hongwei qi Yuan LIAN Xihong ZHANG Jinlong YANG Rui ZHANG Meiting Key Laboratory of Remote Sensing of Gansu Province Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China School of Resource and Environmental Sciences Wuhan UniversityWuhan 430079China qinghai Ecological and Environmental Monitoring Center Xining 810007China

qinghai Lake is the largest saline lake in *** change in the lake volume is an indicator of the variation in water resources and their response to climate change on the qinghai-Tibetan Plateau(QTP)in *** present study quantitatively evaluated the effects of climate change and land use/cover change(LUCC)on the lake volume of the qinghai Lake in China from 1958 to 2018,which is crucial for water resources management in the qinghai Lake *** explore the effects of climate change and LUCC on the qinghai Lake volume,we analyzed the lake level observation data and multi-period land use/land cover(LULC)data by using an improved lake volume estimation method and Integrated Valuation of Ecosystem Services and Trade-offs(InVEST)*** results showed that the lake level decreased at the rate of 0.08 m/a from 1958 to 2004 and increased at the rate of 0.16 m/a from 2004 to *** lake volume decreased by 105.40×10^(8) m^(3) from 1958 to 2004,with the rate of 2.24×10^(8) m^(3)/a,whereas it increased by 74.02×10^(8) m^(3) from 2004 to 2018,with the rate of 4.66×10^(8) m^(3)/***,the climate of the qinghai Lake Basin changed from warm-dry to *** 1958 to 2018,the increase in precipitation and the decrease in evaporation controlled the change of the lake volume,which were the main climatic factors affecting the lake volume *** 1977 to 2018,the measured water yield showed an"increase-decrease-increase"fluctuation in the qinghai Lake *** effects of climate change and LUCC on the measured water yield were obviously *** 1977 to 2018,the contribution rate of LUCC was -0.76% and that of climate change was 100.76%;the corresponding rates were 8.57% and 91.43% from 1977 to 2004,respectively,and -4.25% and 104.25% from 2004 to 2018,*** analysis of the effects and contribution rates of climate change and LUCC on the qinghai Lake volume revealed the scientific significance of climate change and LUCC,as well as

关键词： climate change land use/cover change water yield lake volume contribution rate qinghai Lake Basin qinghai-Tibetan Plateau

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Petrological and Geochemical Constraints on the Origin of Strongly Peraluminous Granitoids from the Triassic Guangtoushan Pluton in South qinling

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Acta Geologica Sinica(English Edition) 2023年第6期97卷 1683-1697页

作者： GUAN qi CAO Junlin WANG Rixiang XIE Peiling XIA Wenyue LI Xiaowei Hebei Key Laboratory of Strategic Critical Mineral Resources Hebei GEO UniversityShijiazhuang 050031China Hebei Province Collaborative Innovation Center for Strategic Critical Mineral Research College of Earth SciencesHebei GEO UniversityShijiazhuang 050031China Shandong Province Nuclear Industry Geological Group 273 YantaiShandong 264006China State Key Laboratory of Geological Process and Mineral Resources School of Earth Science and Mineral ResourcesChina University of GeosciencesBeijing 100083China MNR Key Laboratory of Gold Mineralization Processes and Resources Utilization Shandong Key Laboratory of Mineralization Geological Processes and Resources Utilization in Metallic MineralsShandong Institute of Geological ScienceJinan 250013China The Third Geological Exploration Institute of qinghai Province Xining 810029China

As an important part of the early Mesozoic granites in the South qinling tectonic belt(SQTB),the Guangtoushan pluton provides a material basis for research on the composition of magma sources and the effects of peritectic assemblage entrainment(PAE)on the changes in the granite *** shown by the results of LA-ICP-MS zircon U-Pb dating,the Guangtoushan pluton was emplaced during the Late Triassic(214-212 Ma)and was formed in the post-collision stage between the SQTB and the Yangtze *** collected samples had high SiO_(2)content and low Cr and Ni contents,indicating that the magmas did not undergo significant crust-mantle mixing during their *** Guangtoushan granitoids were distributed along the trend line of magmatic fractional crystallization in the F-An-Or *** result,combined with the relatively homogeneous Sr-Nd isotopic composition,implies that the Guangtoushan pluton underwent slight assimilation and *** can be inferred from the comparison between the compositions of the Guangtoushan granitoids and various fluid-absent experimental melts,the magma sources of the Guangtoushan granitoids contain a variety of materials,such as graywackes,pyroclastic graywackes,and pelites and are not derived from lower crustal mafic *** correlation between the maficity and the major and trace elements further indicates that the strongly peraluminous granitoids from the Guangtoushan pluton was formed by the partial melting of biotite-bearing crustal rocks and its magmatic evolution was accompanied by the entrainment of clinopyroxenes and accessory minerals.

关键词： petrogenesis strongly peraluminous peritectic assemblage entrainment(PAE) Guangtoushan granitoids South qinling

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The interactive process of cultural landscape:Taking the trails around Zhengqi Pavilion as an example

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Frontiers of Architectural Research 2023年第6期12卷 1195-1211页

作者： Mengyao Pan Huayu Guo qi Zhou Jiangtao Xie School of Architecture Architectural History and TheorySoutheast UniversityNanjing 210096China School of Architecture Nanjing Tech UniversityNanjing 211800China Yangzhou Architecture Design&Research Institute Co. Ltd.Yangzhou 225009China

Cultural landscape is a social natural process under which people actively participate in thinking,feeling,and *** this basis,their connection with a certain part of the environment in turn affects people’s perception of the world and the products of their *** is a representative and complex practice of integrating nature into society and transforming it into a mixed ***,the dynamic and diverse relationships of cultural landscapes represented by this interactive process have not been well interpreted in landscape *** research first discusses the conceptualization and value theory of cultural landscape,and develops the methodology of cultural landscape interaction process research combining typology and Network *** the trails spontaneously formed around the Zhengqi Pavilion of Sun Yat-sen Mausoleum in Nanjing as an example,this paper discusses the interaction process of trails as a cultural *** on the analysis results,we obtained the dynamic characteristics of cultural landscapes by treating trails as a network,while obtaining the value expression created by typology.

关键词： Cultural landscape Interaction process Trails Space syntax Typology

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Acupuncture for ischemic stroke:cerebellar activation may be a central mechanism following Deqi

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Neural Regeneration Research 2015年第12期10卷 1997-2003页

作者： Miao-keng Li Yu-jie Li Gui-feng Zhang Jun-qi Chen Ji-ping Zhang Ji qi Yong Huang Xin-sheng Lai Chun-zhi Tang School of Chinese Medicine Southern Medical University First Clinical Medical School Southern Medical University Zhaoqing Medical College Department of Rehabilitation Medicine the Third Affiliated Hospital of Southern Medical University College of Acupuncture and Massage Guangzhou University of Chinese Medicine

The needling sensation of Deqi during acupuncture is a key factor of influencing acupuncture *** studies have mainly focused on the brain function effects of Deqi in a physiological *** magnetic resonance imaging（f MRI）on the effects of acupuncture at Waiguan（SJ5）in pathological and physiological states is *** this study,12 patients with ischemic stroke received acupuncture at Waiguan（SJ5）and simultaneously underwent f MRI scanning of the brain,with imaging data of the activated areas *** on the patient＇s sensation,imaging data were allocated to either the Deqi group or non-Deqi *** the Deqi group,the activated/deactivated areas were the left superior temporal gyrus（BA39）/right anterior lobe of the cerebellum and left *** the non-Deqi group,the activated areas included the medial frontal gyrus of the right frontal lobe（BA11）,right limbic lobe（BA30,35）,and left frontal lobe（BA47）,while the only deactivated area was the right parietal lobe（BA40）.Compared with the non-Deqi group,the Deqi group exhibited marked activation of the right anterior lobe of the cerebellum and right limbic lobe（BA30）.These findings confirm that the clinical effect of Deqi during acupuncture is based on brain functional *** activation may be one of the central mechanisms of acupuncture in the treatment of ischemic stroke.

关键词： nerve regeneration traditional Chinese medicine acupuncture functional magneticresonance imaging ischemic stroke Brodmann area Waiguan (SJ5) acupoint Deqi non-Deqi 973Program neural regeneration

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Single-cell omics: experimental workflow, data analyses and applications

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Science China Life Sciences 2025年第1期68卷 5-102页

作者： Fengying Sun Haoyan Li Dongqing Sun Shaliu Fu Lei Gu Xin Shao qinqin Wang Xin Dong Bin Duan Feiyang Xing Jun Wu Minmin Xiao Fangqing Zhao Jing-Dong J.Han qi Liu Xiaohui Fan Chen Li Chenfei Wang Tieliu Shi Department of Clinical Laboratory the Affiliated Wuhu Hospital of East China Normal University (The Second People's Hospital of Wuhu City) Pharmaceutical Informatics Institute College of Pharmaceutical SciencesZhejiang University Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration (Tongji University) Ministry of EducationOrthopaedic DepartmentTongji HospitalBioinformatics DepartmentSchool of Life Sciences and TechnologyTongji University Frontier Science Center for Stem Cells School of Life Sciences and TechnologyTongji University Translational Medical Center for Stem Cell Therapy and Institute for Regenerative Medicine Shanghai East HospitalBioinformatics DepartmentSchool of Life Sciences and TechnologyTongji University Research Institute of Intelligent Computing Zhejiang Lab Shanghai Research Institute for Intelligent Autonomous Systems Center for Single-cell Omics School of Public HealthShanghai Jiao Tong University School of Medicine National Key Laboratory of Chinese Medicine Modernization Innovation Center of Yangtze River DeltaZhejiang University Center for Bioinformatics and Computational Biology Shanghai Key Laboratory of Regulatory Biologythe Institute of Biomedical Sciences and School of Life SciencesEast China Normal University Beijing Institutes of Life Science Chinese Academy of Sciences Peking-Tsinghua Center for Life Sciences Academy for Advanced Interdisciplinary StudiesCenter for Quantitative Biology (CQB)Peking University Zhejiang Key Laboratory of Precision Diagnosis and Therapy for Major Gynecological Diseases Women's HospitalZhejiang University School of Medicine Key Laboratory of Advanced Theory and Application in Statistics and Data Science-MOE School of StatisticsEast China Normal University

Cells are the fundamental units of biological systems and exhibit unique development trajectories and molecular features. Our exploration of how the genomes orchestrate the formation and maintenance of each cell, and control the cellular phenotypes of various organismsis, is both captivating and intricate. Since the inception of the first single-cell RNA technology, technologies related to single-cell sequencing have experienced rapid advancements in recent years. These technologies have expanded horizontally to include single-cell genome, epigenome,proteome, and metabolome, while vertically, they have progressed to integrate multiple omics data and incorporate additional information such as spatial sc RNA-seq and CRISPR screening. Single-cell omics represent a groundbreaking advancement in the biomedical field,offering profound insights into the understanding of complex diseases, including cancers. Here, we comprehensively summarize recent advances in single-cell omics technologies, with a specific focus on the methodology section. This overview aims to guide researchers in selecting appropriate methods for single-cell sequencing and related data analysis.

关键词： single-cell sequencing genome epigenome proteomics metabolomics multimodal spatial transcriptomics CRISPR screening

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