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Zhangmu and Gyirong ports under the threat of glacial lake outburst flood

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Research in Cold and Arid Regions 2020年第6期12卷 461-476页

作者： MiaoMiao Qi ShiYin Liu YongPeng gao yunnan Key Laboratory of International Rivers and Transboundary Eco-Security Yunnan UniversityKunmingYunnan 650091China Institute of International Rivers and Eco-security Yunnan UniversityKunmingYunnan 650091China State Key Laboratory of Cryospheric Sciences Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhouGansu 730000China

The Himalayas are prone to glacial lake outburst floods,which can pose a severe threat to downstream villages and *** Zhangmu and Gyirong land treaty ports are located on the China-Nepal border in the central *** recent years,the expansion of glacial lakes has increased the threat of these two port *** article describes the results of mapping the glacial lakes larger than 0.01 km^2 in the Zhangmu and Gyirong port regions and analyzes their *** provides a comprehensive assessment of potentially dangerous glacial lakes and predicts the development of future glacial *** 1988 to 2019,the glacial lakes in these port regions underwent"expansion",and moraine-dammed lakes show the most significant expansion trend.A total of eleven potentially dangerous glacial lakes are identified based on the assessment criteria and historical outburst events;most expanded by more than 150%from 1988 to 2019,with some by over 500%.The Cirenmaco,a moraine-dammed lake,is extremely prone to overtopping due to ice avalanches or the melting of dead ice in the *** other large lakes,such as the Jialongco,Gangxico and Galongco,ice avalanches may likely cause the lakes to burst besides self-destructive *** potential dangers of the Youmojianco glacial lakes,including lakes Nos.9,10 and 11,will increase in the *** addition,the glacier-bed topography model predicts that 113 glacial lakes with a size larger than 0.01 km^2,a total area of 11.88 km2 and a total volume of 6.37×10^9 m^3 will form in the study area by the end of the 21 *** to global warming,the glacial lakes in the Zhangmu and Gyirong port regions will continue to grow in the short term,and hence the risk of glacial lake outburst floods will increase.

关键词： Zhangmu and Gyirong ports glacier lake expansion potentially dangerous glacial lakes future lake development

Incorporating carbon sink of harvested wood products into ecological footprint accounting:model and case study

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Ecosystem Health and Sustainability 2020年第1期6卷 451-460,450页

作者： Wei gao Guowei Cheng Chang’e Liu School of Ecology and Environmental Sciences Yunnan Key Laboratory for Plateau Mountain Ecology and Restoration of Degraded EnvironmentsYunnan UniversityKunmingChina

Ecological footprint(EF)accounting system is widely used in assessing environmental sustainability at various spatial *** improve the EF performance,a new EF calculation framework was established in this study,in which HWP is considered as carbon sinks and the model was then applied to the Yangtze River basin of *** showed that(1)carbon sink in the basin is about 2.99 Tg per year and it varies substantially across subbasins,which has a nonlinear relationship with net primary productivity;(2)available biocapacity calculated in the whole basin increases from 0.5068 to 0.5759 national ha(nha)per capita when incorporating the carbon *** a few subbasins,the added biocapacity is even larger than the biocapacity estimated from the conventional approach;(3)the EF of the basin is 5.598 nha per capita and it is much larger than its biological carrying capacity(BC),indicating that ecological deficit is ubiquitous across the *** carbon sinks are considered,the ecological deficit would decrease by 3.2–14.3%for different regions in the *** is necessary to incorporate HWP and other potential terrestrial carbon sinks in the EF accounting,and more efforts are needed in improving carbon sink accuracy.

关键词： Carbon sink net primary productivity(NPP) sustainability ecological footprint harvested wood products(HWP)

Advances in the deep tectonics and seismic anisotropy of the Lijiang-Xiaojinhe fault zone in the Sichuan-yunnan Block,Southwestern China

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Earthquake Research Advances 2022年第1期2卷 22-32页

作者： Peixi Huang Yuan gao Bing Xue Key Laboratory of Earthquake Prediction Institute of Earthquake ForecastingChina Earthquake AdministrationBeijing100036China

The Sichuan-yunnan Block(SYB)is located at the SE margin of the Qinghai-Tibetan Plateau(TP).Under the influence of the southeastward movement of material originated from the TP,intense crustal deformation,frequent seismic activity,and complex geological structures are observed in the *** Lijiang-Xiaojinhe fault(LXF)goes through the central part of the SYB,dividing it into two blocks from north to south,and forming an intersecting fault system with the surrounding *** paper firstly introduces the morphology and the nature of the LXF,the distribution of the regional surface displacements and the focal mechanisms,and then analyzes the medium deformation and the effects of ***,according to the regional tectonics and geophysical patterns,the paper discusses the characteristics of the north-south blocks of the SYB and the abrupt change of deep structure along the LXF *** seismic anisotropy is an essential property for detecting crustal stress,deep structures and dynamical mechanisms,this paper is dedicated to the advances in seismic anisotropy at different depths and different scales in the study *** are noteworthy differences in the anisotropic features between the north part and the south part of the SYB,possibly associated with a clear boundary adjacent to the *** phenomenon suggests some close correlation between anisotropic zoning boundary and the LXF,although this boundary is not consistent with the LXF in *** results from the deformation of the crust and the upper mantle elucidate the distribution patterns of the crust-mantle coupling in the north part and the crustmantle decoupling in the south part,even though this conclusion needs to be further verified by more ***,the scientific understanding of the deep tectonics and the media deformation around the“generalized”LXF *** LXF with the Jinpingshan fault on its eastern side,is still insufficient,and related equivocal topics deserve more in-depth st

关键词： Sichuan-yunnan Block Lijiang-Xiaojinhe fault North-south zoning Stress Deformation Deep structure Seismic anisotropy

Source rupture characteristics of the September 5,2022 Luding M_(S)6.8 earthquake at the Xianshuihe fault zone in southwest China

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Earthquake Research Advances 2023年第2期3卷 8-14页

作者： Guohui Li Anjian Wang Yuan gao Key Laboratory of Earthquake Prediction Institute of Earthquake ForecastingChina Earthquake AdministrationBeijing100036China

On September 5,2022,at Beijing time 12:52 p.m.,an M_(S)6.8 earthquake struck Luding County,GarzêTibetan Autonomous Prefecture,Sichuan *** epicenter of the earthquake was at the intersection of the Sichuan-yunnan,Bayankala,and South China *** tectonic background is extremely complex,and strong earthquakes occur *** on a predetermined focal location and focal mechanism solution for the earthquake,we reversed the focal depth and rupture process of the earthquake by fitting the teleseismic P and SH waves recorded by the global seismic *** results show that the focal depth is 16 km,with the main rupture having a length of about 45 km near the epicenter,with a maximum displacement of 1.02 *** the rupture mainly propagates from the north–northwest(NNW)to the south–southeast(SSE)along the fault strike,there is a small-scale rupture slip zone at shallow depths in the north–northeast(NNE)direction along the epicenter of the seismogenic *** rupture image corresponds to the cluster distribution of aftershocks in the NNW and SSE directions starting from the epicenter,corresponding to the distribution of recorded *** earthquake occurred on the Moxi fault,located in the southeastern section of the Xianshuihe *** major tectonic feature in this area is the southeastward movement of the Chuandian block relative to the Bayanhar block.

关键词： Luding M_(S)6.8 earthquake Rupture process Xianshuihe fault Southeastern margin Qinghai-Tibetan Plateau

A Note on General Third Geometric-arithmetic Index of Special Chemical Molecular Structures

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Communications in Mathematical Research 2016年第2期32卷 131-141页

作者： gao Wei School of Information Science and Technology Yunnan Normal University

In theoretical chemistry, the geometric-arithmetic indices were introduced to measure the stability of alkanes and the strain energy of cycloalkanes. In this note, we report the general third geometric-arithmetic index of unilateral polyomino chain and unilateral hexagonal chain. Also, the third geometric-arithmetic index of these chemical structures are presented.

关键词： molecular graph general third geometric-arithmetic index unilateralpolyomino chain unilateral hexagonal chain

薄型CCD用于大色散光谱观测引起的干涉条纹的特征及消除的方法

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天文学报 1989年第4期30卷 387-392页

作者：秦松年李如凤高彩中国科学院云南天文台

本文分析了薄型CCD用于大色散光谱观测时干涉条纹产生的原因,特征.给出了消除干涉条纹的方法以及以10830为中心波长处的太阳、恒星光谱的实测处理结果.

关键词： CDD 散光谱干涉条纹消除太阳

Bifunctional Salen-Cu（II） Complex as Efficient Catalyst for N-Arylation of Imidazoles and Suzuki-Miyaura Coupling Reactions

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Chemical Research in Chinese Universities 2015年第4期31卷 549-552页

作者： WANG Yi gao Jingyi ZHAO Mengdan LI Jiamei Faculty of Chemistry and Chemical Engineering Yunnan Normal University Kunming 650500 P. R. China

Bifunctional Salen-Cu（II） complex catalyzed cross-coupling reactions of aryl halids with imidazoles or phenylboronic acid reagents have been developed as practical methods for C--N and C--C bond formation. The procedure tolerates aryl halides with various functional groups（such as methoxy, acetyl, nitrile, fluoro and nitro groups） and gives the corresponding coupling products in moderate to high yields. The catalyst remained active after fiye successive catalytic runs without loss in performance.

关键词： Salcn-Cu(II) complex Homogenous catalysis Cross-coupling N-Arylation

干扰和过表达端粒酶卡哈尔体蛋白1小鼠骨髓间充质干细胞的生物学特性对比

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中国组织工程研究 2025年第31期29卷 6616-6624页

作者：林书倩赵玺龙高景潘兴华李自安阮光萍解放军联勤保障部队第九二〇医院基础医学实验室云南省昆明市650032 干细胞与免疫细胞生物医药技术国家地方联合工程研究中心云南省昆明市650032 云南省细胞治疗技术转化医学重点实验室云南省昆明市650032

背景:随着年龄的增长,骨髓间充质干细胞的功能逐渐降低,延缓骨髓间充质干细胞自身衰老成为一项重要课题。目的:通过改变端粒酶卡哈尔体蛋白1(telomerase cajal body protein 1,TCAB1)基因的表达,探讨延缓骨髓间充质干细胞衰老的途径。方... 详细信息

背景:随着年龄的增长,骨髓间充质干细胞的功能逐渐降低,延缓骨髓间充质干细胞自身衰老成为一项重要课题。目的:通过改变端粒酶卡哈尔体蛋白1(telomerase cajal body protein 1,TCAB1)基因的表达,探讨延缓骨髓间充质干细胞衰老的途径。方法:细胞贴壁法培养小鼠骨髓间充质干细胞,应用重组慢病毒技术过表达或干扰骨髓间充质干细胞中的TCAB1基因,采用qPCR检测衰老相关基因P16、P21、P53、P27的表达,qPCR检测Telomere的表达判断端粒的相对长度;Western blot检测衰老蛋白P16、P21、P53、P27的表达;CCK-8法检测细胞增殖情况;Annexin V-PE/7-AAD细胞凋亡试剂盒检测细胞凋亡情况。结果与结论:过表达TCAB1基因骨髓间充质干细胞中衰老相关基因及蛋白的表达量下降,端粒相对长度增加,细胞增殖能力较强,细胞凋亡数量较少,细胞呈现年轻状态;干扰TCAB1基因骨髓间充质干细胞中衰老相关基因及蛋白的表达量上升,端粒相对长度缩短,细胞增殖能力较弱,细胞凋亡数量较多,细胞呈现衰老状态。以上结果表明,在适当范围内增加TCAB1的表达量,可以延缓细胞衰老的速度。

关键词：骨髓间充质干细胞端粒酶卡哈尔体蛋白1 衰老过表达干扰细胞增殖细胞凋亡工程化干细胞

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数字孪生技术赋能水利工程建设管理路径探索

水利建设与管理 2025年第1期45卷 68-73页

作者：郎启庄郎啟香高宽云南省水利水电科学研究院云南昆明650500 云南鸿禹水利水电工程质量检测有限公司云南昆明650200 国控基业(北京科技有限公司) 北京102400

随着物联网、大数据、人工智能等技术的快速发展,水利工程建设与数字技术的融合日益深入。本文针对水利工程建设与数字化技术融合存在的短板与瓶颈,基于数字孪生技术的特点,并结合云南省信息化建设相关案例,对水利工程建设管理的现实困... 详细信息

随着物联网、大数据、人工智能等技术的快速发展,水利工程建设与数字技术的融合日益深入。本文针对水利工程建设与数字化技术融合存在的短板与瓶颈,基于数字孪生技术的特点,并结合云南省信息化建设相关案例,对水利工程建设管理的现实困境进行了分析。从开展智能感知与信息监测建设、优化当前水利工程建设管理体系、构建综合高效的水利工程运维管理平台、数字技术赋能水利工程基础设施建设四个方面,探索了数字孪生技术赋能水利工程建设管理的技术思路。结果表明,若加大技术创新和资金投入,完善制度建设,推进数字孪生水利工程建设由试点示范向大范围推广转变,将为未来水利工程建设管理提供有力支撑。

关键词：水利工程管理数字孪生技术智慧水利