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辽源地区2002～2011年烧伤患者统计分析

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中国当代医药 2013年第5期20卷 162-163,165页

作者：孙有志吉林省辽源矿业(集团)公司总医院烧伤科吉林辽源136200

目的探讨本地区2002～2011年烧伤患者的特点，为预防、控制烧烫伤的发生提供理论依据。方法采用回顾性分析，以表格的形式直观地反映出烧伤患者在各方面的统计数据，并进行总结。结果本地区烧伤的发生率有明显季节性，工人发病率高，30... 详细信息

目的探讨本地区2002～2011年烧伤患者的特点，为预防、控制烧烫伤的发生提供理论依据。方法采用回顾性分析，以表格的形式直观地反映出烧伤患者在各方面的统计数据，并进行总结。结果本地区烧伤的发生率有明显季节性，工人发病率高，30～50岁为烧伤高发年龄段，沸水烫伤居烧伤原因首位，住院时间随烧伤面积和三度面积增大而相应延长。结论针对烧伤发生的不同特点制定预防措施，普及预防知识，加强防范措施，以减少烧烫伤的发生，这对个人和社会均具有重要意义。

关键词：辽源地区烧伤患者发生率统计分析

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净扬程887m的光伏水泵系统

太阳能学报 2013年第12期34卷 2232-2234页

作者：李杰慧冯安明刘祖明何金勇孙建平孙友志云南卓业能源有限公司昆明650217 攀枝花市银江金勇工贸有限责任公司攀枝花617000 云南师范大学太阳能研究所云南省农村能源工程重点实验室昆明650092

着重介绍在我国四川省攀枝花市仁和区平地镇迤沙拉村金沙江边安装的净扬程为887m的太阳能光伏提水系统工程及相关技术。提出三泵智能控制模式,解决超高扬程及系统的最佳配置,系统实际运行效果优异。

关键词：光伏水泵系统三泵智能控制扬程最高规模最大

Divergent responses of runoff to climate change in the upper basins of the Third Pole dominated by westerlies and monsoon

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Science China Earth Sciences 2024年第8期67卷 2592-2614页

作者： Qikai sun Fengge SU He sun State Key Laboratory of Tibetan Plateau Earth System Environment and Resources(TPESER)Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100101China

The diverse climates,distribution of snow and glaciers,and geographic locations directly affect the runoff response to climate change in the upper basins of the Third *** present,a comprehensive analysis of runoff variations and their distinct responses to climate change in the westerlies-and monsoon-dominated upper basins is still *** study comprehensively analyzed annual runoff variations in westerlies-dominated basins(the upper basins of the Aksu(UAKS),Syr Darya(USRD),Yarkant(UYK),Hotan(UHT),Amu Darya(UAMD),and Indus(UI))and monsoon-dominated basins(the upper basins of the Yangtze(UYA),Yellow(UYE),Lancang(ULC),Nujiang(UNJ),and Yarlung Zangbo(UYZ))of the Third Pole from 1961 *** multi-source meteorological data and large-scale circulation factors,this study investigated the divergent responses of runoff in the upper basins to climate change,and explored the large-scale circulation mechanisms underlying runoff variations in these upper *** results showed that:(1)The annual runoff in the majority of upper basins(except for the UYE and UYZ)exhibited an increasing trend,and the annual runoff in the UAKS,UYK,and UI showed a significant increasing trend from1961 to *** annual runoff in the upper basins of the Third Pole changed abruptly from decreasing to increasing between the 1980s and 2000s,with the exception of the UYE.(2)The runoff in the monsoon-dominated upper basins has been controlled primarily by changes in precipitation over the past 55 *** contrast,the runoff in the westerlies-dominated upper basins exhibited three distinct long-term responses to climate change:temperature-dominated(UYK and UHT),precipitation-dominated(USRD and UAMD),and the combined influence of precipitation and temperature(UAKS and UI).Since the 1960s,the sensitivity of runoff to warm season temperature changes in the most westerlies-dominated upper basins has decreased,while the response of runoff to precipitation changes has intensified.(3)The stud

关键词： Upper basins of the Third Pole Climate change Westerlies and monsoon Runoff variations Large-scale circulation factors

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New perspectives on deep carbon cycling

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Science China Earth Sciences 2024年第8期67卷 2411-2422页

作者： Weidong sun Center of Deep Sea Research Key Laboratory of Ocean Observation and ForecastingInstitute of OceanologyChinese Academy of SciencesQingdao 266071China Laoshan Laboratory Qingdao 266237China University of Chinese Academy of Sciences Beijing 100049China

The proto-atmosphere serves as a crucial starting point for the carbon *** based on atmospheric data from Mars and Venus suggest that Earth's proto-atmosphere contained>110 bar of CO_(2)and>2.6 bar of *** protoatmosphere had over 1000 bar of water vapor during the magma ocean stage,assuming the proto-ocean had a volume of two oceans of *** this stage both water and carbon dioxide were in a supercritical state at the magma-atmosphere *** serpentinization reactions occurred due to rock-water interaction,producing abundant ***,nitrogen is reduced to ammonia,and carbon dioxide to methane,forming carbonate *** proto-atmosphere dominated by methane,ammonia,and hydrogen formed a significant amount of amino acids through *** process is essential not only to the origin of life,but also to the early carbon-nitrogen cycle on *** the Hadean eon,a large amount of CO_(2)was sequestered as carbonate and organic ***,it mainly entered the deep mantle through mantle overturn or *** the mantle transition zone,carbonate undergoes“Redox freezing”,where carbonate is reduced to diamond through oxidation of ferrous iron in the *** the lower mantle,Fe^(2+)undergoes disproportionation reactions,forming Fe^(3+)and metallic *** these,Fe^(3+)mainly resides in bridgmanite,thereby increasing the oxygen fugacity of the lower mantle,while metallic iron falls to the Earth's *** distribution of carbon in the mantle is crucial for deep carbon *** density curves of diamond and mantle peridotite melt intersect at the bottom of the mantle transition zone(about 660 km).This density crossover leads to the accumulation of diamond during the magma ocean *** materials such as subducting slabs enter the lower mantle,compensatory upwelling of lower mantle material *** enters the upper mantle,decomposes,releasing Fe^(3+)ions and oxidizes diamond

关键词： Carbon cycling Proto-atmosphere Amino acids Subduction initiation Passive margin subduction Atmospheric carbon dioxide

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高原训练基地气候条件对运动训练的影响

西北成人教育学院学报 2003年第3期 50-52页

作者：李洁孙有智西北师范大学体育学院甘肃兰州730070 湖州师范学院体育系浙江湖州313000

近年来,高原训练越来越受到国内外教练员和体育专业人士的重视,人们相信高原训练能给运动员带来一定的好处。高原训练是一个复杂的问题,它涉及运动员训练水平、机能水平、训练手段、训练环境、地理位置、自然条件及其各个因素之间的内... 详细信息

近年来,高原训练越来越受到国内外教练员和体育专业人士的重视,人们相信高原训练能给运动员带来一定的好处。高原训练是一个复杂的问题,它涉及运动员训练水平、机能水平、训练手段、训练环境、地理位置、自然条件及其各个因素之间的内在联系,不能一味从海拔高度判断高原训练条件的优劣,其气候条件及地理位置对运动训练的影响也是相当重要的。本文通过对目前国内外高原训练基地的分布及其相应的自然条件的分析研究,揭示较理想的高原训练应在低纬度高海拔地区和国家进行,这样更有利于提高训练效果。

关键词：运动训练高原训练基地气候条件影响地理位置训练环境

Fossil Equidae in the Linxia Basin with Biostratigraphic and Paleozoogeographic Significance

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Acta Geologica Sinica(English Edition) 2024年第1期98卷 1-9页

作者： sun Boyang Key Laboratory of Vertebrate Evolution and Human Origins of the Chinese Academy of Sciences Institute of Vertebrate Paleontology and PaleoanthropologyChinese Academy of SciencesBeijing 100044China

The Linxia Basin is characterized by an abundance of Cenozoic sediments,that contain exceptionally rich fossil *** are abundant in the Linxia Basin,the fossil record of equids in this region including 16 species that represent 10 *** comparison to other classic late Cenozoic areas in China,the Linxia Basin stands out,because the fauna and chronological data accompanying Linxia equids render them remarkably useful for *** anchitheriines in the region,such as Anchitherium and Sinohippus,represent early equids that appeared in the late stages of the middle and late Miocene,*** the equines,most species of Chinese hipparions have been identified in the Linxia Basin and some species of the genera Hipparion and Hippotherium have FAD records for ***,Equus eisenmannae is one of the earliest known species of Equus in the Old World and is well-represented at the Longdan *** species with precise geohistorical distributions can serve as standards for high-resolution chronological units within this *** at the eastern margin of the Tibetan Plateau and subject to considerable uplift,the Linxia Basin has served as a biogeographic transition area for equids throughout the late Cenozoic.

关键词： Equidae Cenozoic biostratigraphy paleozoogeography Linxia Basin

Achieving simultaneously high conversion and high selectivity for light olefins directly producing from syngas

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Science China Chemistry 2024年第3期67卷 753-754页

作者： Yuhan sun Shanxi Research Institute Huairou Research LaboratoryTaiyuan 030032China Institute of Carbon Neutrality ShanghaiTech UniversityShanghai 201210China

The activity and selectivity are two primary indexes of a successful catalyst for chemical reactions. However,achieving a high activity and a high selectivity simultaneously is a long-standing challenge in catalysis, the socalled activity-selectivity trade-off. In the article recently published in Science, a research team led by Prof.

关键词： selectivity simultaneous catalysis

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第二脱氢反应器研制及质量控制

齐鲁石油化工 2005年第3期33卷 181-183页

作者：孙佑志山东齐鲁石化机械制造有限公司山东淄博255400

介绍了第二脱氢反应器(R302)设备、材料和技术准备情况以及主要工艺方案和质量控制要求,分析了影响第二脱氢反应器制造质量的各种影响因素,针对制造、技术难点采取了有效的控制措施,保证了第二脱氢反应器制造质量。

关键词：材料工艺焊接质量控制

ONE-PARAMETER FINITE DIFFERENCE METHODS AND THEIR ACCELERATED SCHEMES FOR SPACE-FRACTIONAL SINE-GORDON EQUATIONS WITH DISTRIBUTED DELAY

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Journal of Computational Mathematics 2024年第3期42卷 705-734页

作者： Tao sun Chengjian Zhang Haiwei sun School of Mathematics and Statistics Huazhong University of Science and TechnologyWuhan 430074China Hubei Key Laboratory of Engineering Modeling and Scientific Computing Huazhong University of Science and TechnologyWuhan 430074China Department of Mathematics University of MacaoMacaoChina

This paper deals with numerical methods for solving one-dimensional(1D)and twodimensional(2D)initial-boundary value problems(IBVPs)of space-fractional sine-Gordon equations(SGEs)with distributed *** 1D problems,we construct a kind of oneparameter finite difference(OPFD)*** is shown that,under a suitable condition,the proposed method is convergent with second order accuracy both in time and *** implementation,the preconditioned conjugate gradient(PCG)method with the Strang circulant preconditioner is carried out to improve the computational efficiency of the OPFD *** 2D problems,we develop another kind of OPFD *** such a method,two classes of accelerated schemes are suggested,one is alternative direction implicit(ADI)scheme and the other is ADI-PCG *** particular,we prove that ADI scheme can arrive at second-order accuracy in time and *** some numerical experiments,the computational effectiveness and accuracy of the methods are further ***,for the suggested methods,a numerical comparison in computational efficiency is presented.

关键词： Fractional sine-Gordon equation with distributed delay One-parameter finite difference methods Convergence analysis ADI scheme PCG method