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Research hotspot and trend of plant water use in karst: Based on a bibliometric analysis from 1984 to 2022

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China Geology 2025年第1期8卷 214-229页

作者： De-gen Zhu Jing Ning Hui Yang Jun-bing Pu jian-hua Cao Meng-xia Zhou Mitja Prelovsek Natasa Ravbar Key Laboratory of Karst Dynamics MNR and Guangxi Institute of Karst GeologyChinese Academy of Geological SciencesGuilin 541000China International Research Center on Karst under the Auspices of UNESCO National Center for International Research on Karst Dynamic System and Global ChangeGuilin 541000China Pingguo Guangxi Karst EcosystemNational Observation and Research StationPingguo 531406China Chongqing Normal University Chongqing 400000China Research Centre of the Slovenian Academy of Sciences and Art Karst Research InstituteTitov trg 26230 PostojnaSlovenia

Research on the ecohydrological processes of terrestrial plants is a frontier field comprising ecology,hydrology and global change research,yielding the key theoretical foundations of *** karst areas,due to its unique geological background,the karst landscape is strongly developed,with high bedrock exposure,high permeability,fragmented soils,shallow soils,and high spatial heterogeneity,resulting in very limited water storage for plant uptake and growth in rock fissures and shallow ***,water conditions are an important ecological factor influencing plant *** comprehensively understand the current progress and development trends in plant water use research focusing on karst areas,this paper uses the VOSviewer software to analyze the literature on plant water use in karst areas between 1984 and *** results showed that:(1)Research on plant water use in karst areas has developed rapidly worldwide,and the number of relevant studies in the literature have increased year by year,which together means that it is attracting more and more attention.(2)The investigation of plant water sources,geological background of karst areas,seasonal arid tropical climates,the relationship betweenδ13C values and plant water use efficiency,karst plant water use in karst savannas and subtropical areas,and ecosystems under climate change yields the knowledge base in this field.(3)Most studies in this area focus on the division of water sources of plants in karst areas,the methods of studying the water use sources of plants,and the water use strategies and efficiency of plants.(4)Future research will focus on how plant water use in karst areas is influenced by Earth’s critical zones,climate change,and ecohydrological *** studies will provide a key scientific basis for guiding ecological restoration and promoting sustainable development in karst areas.

关键词： Terrestrial plants Plant water use Karst area Climate change Ecohydrology Bibliometrics Ecological restoration Sustainable development Environmental restoration engineering Web of Science

Deterministic quantum state and gate teleportation between distant superconducting chips

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Science Bulletin 2025年第3期70卷 351-358页

作者： Jiawei Qiu Yang Liu Ling Hu Yukai Wu Jingjing Niu Libo Zhang Wenhui Huang Yuanzhen Chen jian Li Song Liu Youpeng Zhong Luming Duan Dapeng Yu Shenzhen Institute for Quantum Science and Engineering Southern University of Science and TechnologyShenzhen 518055China International Quantum Academy Shenzhen 518048China Guangdong Provincial Key Laboratory of Quantum Science and Engineering Southern University of Science and TechnologyShenzhen 518055China Center for Quantum Information Institute for Interdisciplinary Information SciencesTsinghua UniversityBeijing 100084China Department of Physics Southern University of Science and TechnologyShenzhen 518055China

Quantum teleportation is of both fundamental interest and great practical importance in quantum information *** date,quantum teleportation has been implemented in various physical systems,among which superconducting qubits are of particular practical significance as they emerge as a leading system to realize large-scale quantum ***,scaling up the number of superconducting qubits on a single chip becomes increasing challenging because of some emergent technical *** of quantum teleportation and remote computation over qubits on distant superconducting chips is a key quantum communication technology to scaling up the system through a distributed quantum computational ***,this goal has not been realized yet in experiments due to the technical challenges including making a quantum interconnect between distant superconducting chips and the inefficient transfer of flying microwave photons over the lossy *** we demonstrate deterministic teleportation of quantum states and entangling gates between distant superconducting chips connected by a 64-m-long cable bus featuring an ultralow loss of 0.32 dB/km at cryogenic temperatures,where high fidelity remote entanglement is generated via flying microwave *** work demonstrates a prime building block for distributed quantum computation with superconducting qubits,and opens up a new avenue for waveguide quantum electrodynamics and quantum photonics at microwave frequencies.

关键词： Superconducting circuits Quantum network Quantum computing Flying microwave photon

Stable geometries and magnetic properties in transition-metaldoped Sm5Co19 permanent magnet alloys:Insights from DFT

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Science China(Physics,Mechanics & Astronomy) 2025年第04期Mechanics & Astronomy) .卷 223-231页

作者： Cheng Fang Zhi Yan Xu-Jin Zhang jian-Hua Xiao Fang Wang Xiao-Hong Xu School of Chemistry and Materials Science of Shanxi Normal University&Key Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education Research Institute of Materials Science Shanxi Key Laboratory of Advanced Magnetic Materials and DevicesShanxi Normal University

Sm5Co19permanent magnet alloy holds significant potential for applications due to its ultra-high intrinsic coercivity,low temperature coefficient of coercivity and high Curie ***,its metastable nature poses challenges for experimental *** we propose to use transition metal doping to effectively improve the structural stability and comprehensive magnetic properties of Sm5Co19based on first-principles *** find that Sc,Ti,V,Cr,Mn,and Zr preferentially occupy the Sm-6c2 site,while Fe,Ni,Cu,and Zn preferentially occupy the Co-6c2,Co-18h1,Co-18h2,and Co-18h2 site,***,doping elements at their optimal sites significantly enhance the structural stability of the doped *** substituting Sm or Co sites,doping with Cr,Mn,and Fe significantly increases the total magnetic moment of the *** the number of doping atoms range from 0 to 12,doping with Cr,Mn,and Fe enhances both the structural stability and the total magnetic moment of the Sm5Co19system,further confirming the significant impact of atomic site occupation on the performance of the doped *** study presents a feasible approach for enhancing the structural stability of Sm5Co19permanent magnets and offers valuable theoretical guidance for the development of highperformance Sm-Co based permanent magnet materials.

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关于多变量函数和流形的最优可视表达补注

系统科学与数学 2025年第1期45卷 1-4页

作者：宋健中国工程院北京100190

前时作者曾证明(宋健,2001),平方可积函数空间L_(2)(Ω)中任何函数f(Ω)或云大数据可用较少的单变量函数组合表达,得到梯度算子积分方程组.该方程组的本征元列构成给定f(Ω)特属的直交系、展成短和收敛快的级数.该补注表明,特属直交系... 详细信息

前时作者曾证明(宋健,2001),平方可积函数空间L_(2)(Ω)中任何函数f(Ω)或云大数据可用较少的单变量函数组合表达,得到梯度算子积分方程组.该方程组的本征元列构成给定f(Ω)特属的直交系、展成短和收敛快的级数.该补注表明,特属直交系是f(Ω)派生的正自伴算子的本征元列.

关键词：多变量函数分解近似 Fredholm算子自伴算子特属直交系强收敛

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Mixed reality technology improves liver surgery in lower-volume medical center

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Hepatobiliary & Pancreatic Diseases International 2025年第1期24卷 117-118页

作者： Qi-Fu Yan Wei Yang jian-Ming Ma Zhaxiyundan Yong-Zhi Chen Rui Tang General Surgery Department Lhasa People’s HospitalXizang Autonomous RegionLhasa 850000China Hepatopancreatobiliary Center Beijing Tsinghua Changgung HospitalKey Laboratory of Digital Intelligence Hepatology(Chinese Ministry of Education)School of Clinical MedicineTsinghua UniversityBeijing 102218China

To the Editor:We read with great interest the recent article by Balci et al.[1].In the study,the authors mentioned that their mixed reality(MR)technology has already successfully been applied in open and laparoscopic living donor hepatectomy and in complex laparoscopic liver *** such operations,the MR models of the liver are pulled out and superimposed onto the actual *** can verify the relationship between tumors and crucial areas in order to enhance margin clearance and R0 resection and reduce the risk of injuring major blood *** applying MR(including augmented reality)technology,blood vessels and tumor structures in the liver can be displayed during surgery,which permits precise navigation during complex surgical *** MR was used in surgical education,and most learners believed that 3D models were useful in planning safer surgical paths,reducing intraoperative complications and training of young surgeons[2].

关键词： surgery precise operations

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基于混合蒙特卡洛树搜索的电缆盘装箱方法

计算机集成制造系统 2025年第1期31卷 355-366页

作者：肖泽远林剑浙江财经大学信息技术与人工智能学院浙江杭州310018

电缆盘装箱问题广泛存在于线缆企业的生产实际中,本质上属于带载重约束和正交旋转的多箱型二维装箱问题。针对电缆盘装箱问题,建立以装箱成本最小化为目标的混合整数规划模型,提出一种混合蒙特卡洛树搜索(HMCTS)算法。在蒙特卡洛树搜索... 详细信息

电缆盘装箱问题广泛存在于线缆企业的生产实际中,本质上属于带载重约束和正交旋转的多箱型二维装箱问题。针对电缆盘装箱问题,建立以装箱成本最小化为目标的混合整数规划模型,提出一种混合蒙特卡洛树搜索(HMCTS)算法。在蒙特卡洛树搜索框架下,通过融入高效邻域搜索策略,寻找得到较优的箱子选择方案,并确定每个箱子中货物的装箱位置和方式。在此基础上,构建电缆盘装箱问题的松弛模型,有效降低算法的计算成本。基于线缆企业生产实际中6种不同规模的数据集,对HMCTS算法进行仿真实验和对比分析,结果表明所提算法在求解电缆盘装箱问题中具有较高的有效性和鲁棒性。

关键词：蒙特卡洛树搜索混合整数规划模型松弛模型电缆盘装箱问题多箱型

帕米尔高原岩石圈地幔热-流变特征及其东北缘热结构分析——第三次新疆综合科学考察地热科考成果之一

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地球物理学报 2025年第1期68卷 199-212页

作者：张健孔彦龙中国科学院大学地球与行星科学学院北京100049 中国科学院地质与地球物理研究所北京100029

帕米尔高原是全球研究板块碰撞与盆山耦合过程、板内变形与构造地貌、活动构造与现代地震、壳幔结构与动力学演化等地球科学基本理论问题的重点地区.近年来,帕米尔高原东北缘塔什库尔干河谷一系列中/高温地热田及井口混合水汽温度达144... 详细信息

帕米尔高原是全球研究板块碰撞与盆山耦合过程、板内变形与构造地貌、活动构造与现代地震、壳幔结构与动力学演化等地球科学基本理论问题的重点地区.近年来,帕米尔高原东北缘塔什库尔干河谷一系列中/高温地热田及井口混合水汽温度达144℃自喷地热井的新发现,将该区构造-地热学研究推向了新的高潮.在第三次新疆综合科学考察地热野外科考基础上,依据2010-2024年间新疆地矿局第二水文工程地质大队地热普查、钻探资料,本文利用地震剪切波、重力位球谐系数、磁异常谱分析,计算了帕米尔高原岩石圈地幔热-流变结构,以及东北缘地壳温度结构,为该区理论地热学研究和地热资源开发利用提供基本依据.计算结果表明:帕米尔高原地幔100 km深度的平均温度为1250℃,200 km深度的平均温度为1540℃. 200 km深度是地幔对流活动的主要区域,该深度地幔温度快速升高,地幔流切向应力场呈“挤压”与“拉张”相间的格局,是造成帕米尔高原西侧挤压-左旋走滑构造域、北侧挤压-右旋走滑构造域、东北缘伸展-右旋走滑构造域的主要原因.帕米尔高原东北缘莫霍面平均温度为1078℃,远高于岩石圈单纯剪切变形所需的650℃.横穿塔县盆地、曲曼地热田、塔什库尔干断层的综合地球物理反演剖面上,有一个中心温度达1200℃的高温区位于塔县盆地莫霍面之下.高温区之上是一个呈垂直柱状分布的V_(p)/V_(s)低值区,对应高温高孔隙(裂隙)区,深部活动热流体沿其西侧高温通道直达居里面,并在浅层顺着伸展-右旋走滑构造域主要活动构造上升、与浅表层地下水交换热量形成温泉.综合判断:帕米尔高原东北缘活动正断层是地表水下渗进入地下接受深部热源的热量、形成地热资源的重要条件.该区冷、热交换深度较浅,不存在地热水沿断层深循环加热的地热地质条件,深部地热资源勘查或干热岩勘查需要重点关注来自地幔的“羽状”高温热液活动.

关键词：帕米尔高原地幔流应力场曲曼地热田壳幔温度结构地幔热液活动

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四臂聚乙二醇物理凝胶的线性流变学研究

高分子学报 2025年第2期56卷 278-285页

作者：汤健陈全中国科学院长春应用化学研究所、高分子物理与化学国家重点实验室长春130022

传统缔合高分子体系中往往存在环状链和悬挂链等缺陷结构,这些非均匀性显著阻碍了缔合高分子内部结构参数与其物理性质之间构效关系的定量构筑,并影响了针对这些性质的材料设计开发.为了解决模型体系缺失的问题,基于四臂聚乙二醇前驱体... 详细信息

传统缔合高分子体系中往往存在环状链和悬挂链等缺陷结构,这些非均匀性显著阻碍了缔合高分子内部结构参数与其物理性质之间构效关系的定量构筑,并影响了针对这些性质的材料设计开发.为了解决模型体系缺失的问题,基于四臂聚乙二醇前驱体和锆离子构筑了物理凝胶模型体系,该体系的内部凝胶化程度可以通过调控锆离子与四臂聚乙二醇前驱体的摩尔配比精准调控.线性流变学测试结果显示,凝胶内部的非均匀性被高度抑制.本文提出了通过凝胶平台模量和松弛时间分别计算前驱体末端连接率的方法,2种方法得到的结果定量吻合,进一步讨论了松弛模式分布变化与超桥结构含量之间的关系,明确了凝胶网络结构演化过程.

关键词：缔合高分子线性黏弹性松弛时间平台模量超桥

Efficacy and Safety of Juan Bi Pill with Add-on Methotrexate in Active Rheumatoid Arthritis:A 48-Week,Multicentre,Randomized,Double-Blind,and Placebo-Controlled Trial

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Chinese Journal of Integrative Medicine 2025年第2期31卷 99-107页

作者： JIA Qing-yun WANG Yi-ru SUN Da-wei MAO jian-chun XUE Luan GU Xiao-hua YU Xiang PIAO Xue-mei XU Hao LIANG Qian-qian Spine Institute Longhua Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai(200032)China Spine Institute Shanghai University of Traditional Chinese MedicineShanghai(200032)China Key Laboratory of Theory and Therapy of Muscles and Bones Ministry of Education(Shanghai University of Traditional Chinese Medicine)Shanghai(201203)China Department of Orthopedics Linyi People's HospitalLinyiShandong Province(273000)China Department of Orthopedics Yueyang Hospital of Integrated Traditional Chinese and Western Medicine Affiliated to Shanghai University of Traditional Chinese MedicineShanghai(200437)China Department of Orthopedics the Seventh People's Hospital of Shanghai University of Traditional Chinese MedicineShanghai(200137)China

Objective:To explore the efficacy and safety of Juan Bi Pill(JBP)in treatment of active rheumatoid arthritis(RA).Methods:From February 2017 to May 2018,115 participants from 4 centers were randomly divided into JBP group(57 cases)and placebo group(58 cases)in a 1:1 ratio using a random number table *** received a dose of JBP(4 g,twice a day,orally)combined with methotrexate(MTX,10 mg per week)or placebo(4 g,twice a day,orally)combined with MTX for 12 *** were required with follow-up visits at 24 and 48 weeks,attending 7 assessment *** were undergo disease activity assessment 7 times(at baseline and 2,4,8,12,24,48 weeks)and safety assessments 6 times(at baseline and 4,8,12,24,48 weeks).The primary endpoint was 28-joint Disease Activity Score(DAS28-ESR and DAS28-CRP).The secondary endpoints included American College of Rheumatology(ACR)criteria for 20%and 50%improvement(ACR20/50),Health Assessment Questionnaire Disability Index(HAQ-DI),clinical disease activity index(CDAI),visual analog scale(VAS),Short Form-36(SF-36)score,Medial Outcomes Study(MOS)sleep scale score,serum erythrocyte sedimentation rate(ESR),C-reactive protein(CRP),tender joint count,swollen joint count,and morning *** adverse reactions were observed during the ***:After 12 weeks of treatment,DAS28-ESR and DAS28-CRP scores in both groups were lower than before treatment(both P<0.01),while the remission rate of DAS28-ESR and DAS28-CRP and low disease activity of JBP group were higher than those in the placebo group(both P<0.01).JBP demonstrated better efficacy on ACR20 and ACR50 compliance rate at 12 and 48 weeks comparing to placebo(all P<0.05).The CDAI and HAQ-DI score,pain VAS and global VAS change of RA patients and physicians,the serum ESR and CRP levels,and the number of tenderness and swelling joints were lower than before treatment at 4,8,12,24,48 weeks in both groups(P<0.05 or P<0.01),while the reduction of above indices in

关键词： Chinese medicine Juan Bi Pill methotrexate active rheumatoid arthritis randomized controlled trial