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西部地区物流发展水平的空间差异及动态演进

西藏科技 2024年第6期46卷 59-66页

作者：郑雄飞次仁欧珠陈敏西藏大学工学院拉萨850000

文章从经济发展基础、物流产业规模、物流基础设施、物流服务水平和绿色发展成效5个维度构建中国西部地区物流发展指标体系,基于AHP-CRITIC综合权重的TOPSIS法对2008-2022年间物流发展水平进行测度,继而运用基尼系数探究其空间差异的来... 详细信息

文章从经济发展基础、物流产业规模、物流基础设施、物流服务水平和绿色发展成效5个维度构建中国西部地区物流发展指标体系,基于AHP-CRITIC综合权重的TOPSIS法对2008-2022年间物流发展水平进行测度,继而运用基尼系数探究其空间差异的来源和构成,并结合核密度估计和马尔科夫链解析其动态演进过程。结果表明:西部地区物流发展水平呈整体上升趋势,形成了高、中、低3个梯队,其中西藏自治区物流发展水平亟需提高;西部地区范围内的省(自治区、直辖市)物流发展水平存在空间差异,其中西南片区省份较西北片区物流发展不均衡的现象较为凸出;西部地区相邻省份间的物流发展呈现出的趋同现象较为显著,部分物流发展滞后的区域在短时间内实现跨越式发展存在较大制约。文章以西部地区物流发展水平为依据,解析其物流发展的时空演变过程,可以为充分利用有限的物流资源,促进西部地区物流发展政策有效实施提供参考依据。

关键词：西部地区物流发展水平空间差异动态演进

西藏贡嘎县昌果饰面用大理石矿床地质特征及资源潜力分析

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西藏科技 2024年第5期46卷 17-23,31页

作者：次仁欧珠尼玛次仁格桑多庆尼玛扎西格桑卓嘎西藏自治区地质矿产勘查开发局区域地质调查大队拉萨851400 西藏自治区地质矿产勘查开发局中心实验室拉萨850000

西藏山南市贡嘎县昌果地区属于拉萨-察隅地层分区,出露地质体主要为碎屑岩、碳酸盐岩沉积建造及火山弧岩浆岩系,区内饰面用大理石和花岗石类石材矿产具有巨大的资源潜力。为了解该区饰面用大理石矿产资源及矿体特征、矿石品质等,在1:5... 详细信息

西藏山南市贡嘎县昌果地区属于拉萨-察隅地层分区,出露地质体主要为碎屑岩、碳酸盐岩沉积建造及火山弧岩浆岩系,区内饰面用大理石和花岗石类石材矿产具有巨大的资源潜力。为了解该区饰面用大理石矿产资源及矿体特征、矿石品质等,在1:5千地质测量基础上、结合1:2千地层剖面测量、高密度电阻率测量、节理裂隙统计、岩化分析及物性测定等方法,针对昌果地区出露的含矿建造多底沟组及该组内圈定的大理石矿体开展了矿产调查研究。结果发现,矿层赋存于上侏罗统多底沟组下段,属于区域变质叠加热接触变质改造成因,为大理岩大理石矿床。具有出露层位稳定,规模大,矿石品质好等特征。矿石自然类型为白色细粒方解石大理岩,主要矿物成分为方解石(>95%)及少量的白云石、石英等。矿石成分单一,杂质少,抛光后,花色清晰、明亮,均匀稳定,未见色斑,偶见色线,装饰性能较好,属高档石材品种,具有较大的商业开发价值。

关键词：饰面石材多底沟组大理石矿床

Geochronology and Geochemistry of the Mamupu Cu-Au Polymetallic Deposit,Eastern Tibet:Implications for Eocene Cu Metallogenesis in the Yulong Porphyry Copper Belt

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Acta Geologica Sinica(English Edition) 2022年第4期96卷 1221-1236页

作者： ZHANG Xiaoxu LIN Bin TANG Juxing HE Liang LIU Zhibo WANG Qin SHAO Rui DU Qiu SILANG Wangdui ciren ouzhu GUSANG Quzhen CIDAN Zhongga School of Earth Science and Resources China University of GeosciencesBeijing 100083China MNR Key Laboratory of Metallogeny and Mineral Assessment Institute of Mineral ResourcesChinese Academy of Geological SciencesBeijing 100037China No.6 Geological Party Tibet Bureau of Geology and Mineral Exploration and DevelopmentLhasa 851400China College of Earth Sciences Chengdu University of TechnologyChengdu 610059China Tibet Shengyuan Mining Group Co. Ltd.Lhasa 851400China

The Mamupu skarn-type Cu-Au polymetallic deposit represents the first discovery of a medium deposit in the southern Yulong porphyry copper belt(YPCB),eastern *** Cu-Au mineralization mainly occurs as chalcopyrite in breccia,within the plate-like carbonate interlayer,being closely related to chloritization(e.g.,chlorite,magnetite and epidote)and skarnization(e.g.,diopside,tremolite and garnet).The ore-related quartz syenite porphyry(QSP)and granodiorite porphyry(GP)were emplaced at 40.1±0.2 Ma and 39.9±0.3 Ma,*** QSP of Mamupu is an alkaline-rich intrusion,relatively enriched in LREE,LILE,depleted in HFSE,with no significant negative Eu and Ce anomalies,slightly high(^(87)Sr/^(86)Sr)i,lowε_(Nd)(t),uniform(^(206)Pb/^(204)Pb)i andε_(Hf)(t)values,which indicates that the porphyry magma may be caused by both the mixing of metasomatized EM II enriched mantle and thickened juvenile lower *** QSP in the Mamupu deposit shares a similar genesis of petrology to other ore-related porphyries within the *** oxygen fugacity and water content of the magmas are essential for the formation of porphyry and skarn Cu *** QSP has similar high magmatic oxidation states and water content to the Yulong deposit,which indicates that the Mamupu has a high prospecting *** in the geological characteristics and scale of mineralization between the Mamupu and other YPCB deposits may be due to the different emplacement depths of ore-related intrusions,as well as differences in the surrounding rocks.

关键词： skarn Cu deposit geochronology geochemistry Mamupu Yulong porphyry copper belt Tibet

Correlation between Tibetan and traditional Chinese medicine body constitutions: A cross-sectional study of Tibetan college students in the Tibet Autonomous Region

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Journal of Traditional Chinese Medical Sciences 2018年第3期5卷 215-221页

作者： Hui Luo ouzhu ciren Shujuan Hou Qi Wang School of Traditional Chinese Medicine Beijing University of Chinese MedicineBeijing 100029China Institute for Tibetan Medicine China Tibetology Research CenterBeijing 100101China Center for Studies in Constitution Research and Reproductive Sciences of Traditional Chinese Medicine Beijing University of Chinese MedicineBeijing 100029China

Objective:To evaluate the correlation between the body constitution types of Tibetan medicine and traditional Chinese medicine (TCM).Methods:The cluster sampling method was employed to recruit participants from a university in the Tibet Autonomous *** medicine and TCM questionnaires were respectively used to assess the participants' constitution *** statistics were applied to analyze the baseline and constitution characteristics of the ***-factor correlation analysis and the paired chi-square test were applied to analyze the correlation between Tibetan and TCM constitution ***:Data from 466 Tibetan students were *** mean scores of the rlung,mkhris pa,and bad kan constitution types in Tibetan medicine were 43.2 (11.1),42.1 (10.1),and 45.0 (8.0),respectively;participants with the three-factor convergence body constitution type accounted for 13.7% of the whole *** the TCM constitution types,qi stagnation was the most common (21.5%),followed by the balance type (16.5%);the other constitutions detected were qi deficiency,yin deficiency,and yang *** rate of consistency for the identification of the three-factor convergence constitution in Tibetan medicine and the balance constitution in TCM was 89.1%,with a Kappa coefficient of 0.57 (P >.05).The rlung constitution in Tibetan medicine was associated with the yin deficiency,yang deficiency,and blood stasis constitutions in *** mkhhris pa constitution in Tibetan medicine was associated with the damp heat and yin deficiency constitutions in *** bad kan constitution in Tibetan medicine was associated with the phlegm dampness,qi deficiency,and yin deficiency constitutions in ***:There is a correlation between the body constitution types of Tibetan medicine and *** reliability and validity of the Questionnaire for TibetanMedicine Constitution requires improvement,and more studies with larger sample sizes and more varied

关键词： Tibetan medicine Traditional Chinese medicine Body constitution Cross-sectional study Correlation analysis

A Novel Method for Linear Systems of Fractional Ordinary Differential Equations with Applications to Time-Fractional PDEs

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Computer Modeling in Engineering & Sciences 2024年第5期139卷 1583-1612页

作者： Sergiy Reutskiy Yuhui Zhang Jun Lu ciren Pubu A.Pidhornyi Institute of Mechanical Engineering Problems of NAS of Ukraine Kharkiv61046Ukraine College of Mechanics and Materials Hohai UniversityNanjing211100China Nanjing Hydraulic Research Institute Nanjing210029China Shigatse Everest Urban Investment and Development Group Co Ltd.857000China

This paper presents an efficient numerical technique for solving multi-term linear systems of fractional ordinary differential equations(FODEs)which have been widely used in modeling various phenomena in engineering and *** approximate solution of the system is sought in the formof the finite series over the Müntz *** using the collocation procedure in the time interval,one gets the linear algebraic system for the coefficient of the expansion which can be easily solved numerically by a standard *** technique also serves as the basis for solving the time-fractional partial differential equations(PDEs).The modified radial basis functions are used for spatial approximation of the *** collocation in the solution domain transforms the equation into a system of fractional ordinary differential equations similar to the one mentioned *** examples have verified the performance of the proposed novel technique with high accuracy and efficiency.

关键词： System of FODEs numerical solution Müntz polynomial basis time fractional PDE BSM collocation method

青藏铁路格拉段常见灾害的扩散演化机理及应对策略研究

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西藏大学学报（社会科学版） 2011年第2期26卷 82-86页

作者：陈之强次仁欧珠西藏大学工学院西藏拉萨850000

青藏铁路格拉段地处海拔最高、面积最大、气候条件最为恶劣的青藏高原,特殊的地理、地质、气候条件使得青藏铁路伴生了一些常见灾害。文章总结了青藏铁路常见灾害的地域分布特征,分析了其扩散演化路径,阐述了其扩散方式,最后提出青藏铁... 详细信息

青藏铁路格拉段地处海拔最高、面积最大、气候条件最为恶劣的青藏高原,特殊的地理、地质、气候条件使得青藏铁路伴生了一些常见灾害。文章总结了青藏铁路常见灾害的地域分布特征,分析了其扩散演化路径,阐述了其扩散方式,最后提出青藏铁路在运营过程中的一些应急策略,以期为青藏铁路的运行及灾害防治提供可参考意见。

关键词：青藏铁路扩散方式演化路径

小学高年级语文阅读教学中读写结合的作用与实践

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家长 2021年第16期 163-164页

作者：次仁欧珠西藏自治区林芝市特殊教育学校

在小学高年级语文教学中,教师要注重培养学生养成良好的阅读习惯和写作习惯。语文是一门针对语言文字进行运用和传播的课程,是学生学习其他课程的基础,是对学生的理解能力和表达能力进行专项培养的教育科目。在小学语文教学中,教师应将... 详细信息

在小学高年级语文教学中,教师要注重培养学生养成良好的阅读习惯和写作习惯。语文是一门针对语言文字进行运用和传播的课程,是学生学习其他课程的基础,是对学生的理解能力和表达能力进行专项培养的教育科目。在小学语文教学中,教师应将写作教学和阅读教学有机地结合在一起,以提高学生阅读效率进而促进他们写作能力的不断进步,在提高语言表达能力和读写技能的同时加强学生的综合语文技能。

关键词：小学高年级小学语文阅读教学读写结合

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基于绿电指数的园区常态化低碳运行机制

高电压技术 2022年第7期48卷 2554-2562页

作者：黄家晖次仁欧珠周欢谢邦鹏黄婷胡友琳国网上海市电力公司浦东供电公司上海200122 上海交通大学电力传输与功率变换控制教育部重点实验室上海200240 国网上海市电力公司电力调度控制中心上海200122

建设低碳园区是实现碳中和目标的重要内容,目前园区节能减排和低碳发展普遍停留在计划式、间歇式的以减少电能浪费为主要目标的阶段,难以促进新能源消纳和电力系统低碳化转型发展。为此,提出一种基于绿电指数的园区常态化低碳运行机制,... 详细信息

建设低碳园区是实现碳中和目标的重要内容,目前园区节能减排和低碳发展普遍停留在计划式、间歇式的以减少电能浪费为主要目标的阶段,难以促进新能源消纳和电力系统低碳化转型发展。为此,提出一种基于绿电指数的园区常态化低碳运行机制,首先提出绿电指数的评价指标,基于园区楼宇负荷与系统新能源出力的同时率对各时段低碳行为进行量化评价;然后考虑园区中可中断和具备储能特性的两类负荷,基于其弹性和概率分布特性实现动态分组聚合;最后建立基于绿电指数的园区低碳运行优化模型,通过负荷的精细化调节实现园区节能减排常态化。以上海地区某园区楼宇实测数据进行仿真,结果表明该低碳运行机制能够实现园区节能减碳,有效促进新能源消纳,推动园区低碳常态化、可持续的开展,并为电网提供更丰富的调节能力。

关键词：绿电指数低碳运行动态分组聚合精细化调节新能源消纳

Microphysical Characteristics of Rainfall Based on Long-Term Observations with a 2DVD in Yangbajain,Tibet

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Advances in Atmospheric Sciences 2024年第9期41卷 1721-1734页

作者： Ming LI Yongheng BI Yonghai SHEN Yinan WANG ciren Nima Tianlu CHEN Daren LYU Key Laboratory for Cosmic Rays of the Ministry of Education Tibet UniversityLhasa 850000China Key Laboratory of Middle Atmosphere and Global Environment Observation(LAGEO) Institute of Atmospheric PhysicsChinese Academy of ScienceBeijing 100029China University of Chinese Academy of Sciences Beijing 100049China

Raindrop size distribution(DSD)plays a crucial role in enhancing the accuracy of radar quantitative precipitation estimates in the Tibetan Plateau(TP).However,there is a notable scarcity of long-term,high-resolution observations in this *** address this issue,long-term observations from a two-dimensional video disdrometer(2DVD)were leveraged to refine the radar and satellite-based algorithms for quantifying precipitation in the hinterland of the *** was observed that weak precipitation(R<1,mm h-1)accounts for 86%of the total precipitation time,while small raindrops(D<2 mm)comprise 99%of the total raindrop ***,the average spectral width of the DSD increases with increasing rain *** DSD characteristics of convective and stratiform precipitation were discussed across five different rain rates,revealing that convective precipitation in Yangbajain(YBJ)exhibits characteristics similar to maritime-like *** constrained relationships between the slopeΛand shapeμ,D_(m)and N_(w)of gamma DSDs were ***,we established a correlation between the equivalent diameter and drop axis ratio and found that raindrops on the TP attain a nearly spherical ***,the application of the rainfall retrieval algorithms of the dual-frequency precipitation radar in the TP is improved based on the statistical results of the DSD.

关键词： Tibetan Plateau raindrop size distribution 2DVD dual frequency radar microphysical features