煜鹤堂蝮蛇酒的降糖降脂和降压作用研究          下载免费PDF全文

邵国强  廖国群  徐琳本 《应用海洋学学报》2019,35(11):127-129

目的：探究煜鹤堂蝮蛇酒对血糖血脂和血压的调节作用。方法：将检疫合格的SD大鼠、自发性高血压（SHR）大鼠随机分为正常对照组、模型对照组、溶媒对照组及煜鹤堂蝮蛇酒高、中、低剂量组（用药剂量分别相当于成人推荐食用量的20、10和5倍）。SD大鼠除正常对照组外，其余各组大鼠给予定量高脂高糖饲料喂养，同时按10ml/kg给予受试物或溶媒，连续4周，末次给样后检测血糖（GLU）以及血清中总胆固醇（TC）、三酰甘油（TG）、高密度脂蛋白（LDL-C）及低密度脂蛋白（HDL-C）水平。SHR大鼠按10ml/kg灌胃给予受试物4周，每周检测各组大鼠体质量和血压。结果：煜鹤堂蝮蛇酒各剂量均可显著降低高糖高脂模型大鼠GLU和TC水平（P<0.01），高、中剂量可显著降低模型大鼠TG及LDL-C水平（P<0.01或P<0.05）；煜鹤堂蝮蛇酒高剂量可明显降低SHR大鼠收缩压（P<0.05），对实验动物体质量无明显影响。结论：煜鹤堂蝮蛇酒具有明显的降糖调脂和降压作用。  相似文献   

信息化背景下开放式测绘实训教学研究与探索     

何宽  黄飒  徐琳 《测绘通报》2019,(10):146-149

实验教学是培养学生成为高素质人才必不可少的环节。本文针对当前测量实验教学过程存在的教师主导、学生学习兴趣不高、实验教学效果不理想等问题，积极探索建立以学生能力培养为核心的开放实验教学观念，在开放式测量实验教学过程中，基于CBE理念优化层次化开放实验内容体系，实施基于教学资源平台、实验管理平台和大数据分析的开放实验教学模式和教学诊改，并经过实践证明“互联网+教育”背景下开放式实验教学有利于兼顾学生全面与个性发展，有利于提高学生的整体素质。  相似文献   

藏西北革吉县雄巴乡场镇冻土灾害特征及防治措施     

唐华  徐琳  格桑平措  达娃  男达瓦  张显虎  李宁  刘大明  索朗多吉 《中国地质调查》2022,9(2):100-109

近年来,藏西北革吉县雄巴乡场镇内的冻土灾害日趋严重,研究该区冻土灾害的特征、成因及危害,对制定相应的防灾减灾政策具有重要意义.从基本特征、成因条件、风险性及防治措施等方面对雄巴乡场镇的冻土灾害开展了综合研究,认为加剧该区冻土灾害的主要原因是全球气候变暖导致的降雨量增加和气温升高,使场镇内透水性差、不均匀分布的土体含水率...  相似文献   

西藏冈底斯中段错杰地区花岗斑岩年代学、地球化学特征及其找矿意义     

胡林  徐琳  肖进  徐刚  罗绍强 《中国地质调查》2021,8(5):53-63

在西藏冈底斯中段错杰地区发现一套含孔雀石的花岗斑岩,为确定其形成时代、成因及其找矿意义,对该套花岗斑岩进行了岩相学、LA- ICP-MS锆石U-Pb年代学及地球化学特征研究。结果表明: 该套花岗斑岩中的锆石为岩浆成因,锆石²⁰⁶Pb/²³⁸U加权平均年龄为(13.9±0.2)Ma,侵入时代为中新世。主量元素地球化学测试结果显示花岗斑岩具有富SiO₂、富Al₂O₃、富碱、富钠的钙碱性特征。微量元素地球化学测试结果显示花岗斑岩相对富集U、Th等大离子亲石元素,亏损Nb、Yb等高场强元素,稀土总量为(47.4~141.4)×10^-6,轻稀土相对富集,具正Eu异常。经过综合分析,认为花岗斑岩形成于加厚下地壳的部分熔融,形成过程中可能发生了部分分离结晶作用。通过将花岗斑岩的地质特征与区域典型矿床进行对比,发现错杰地区花岗斑岩具有与冈底斯斑岩铜矿相似的地质特征及成矿系统,深部可能隐伏有较大的含矿斑岩体,具有较好的找矿前景。  相似文献   

南羌塘盆地江鱼玛洛地区中侏罗统雀莫错组砂岩地球化学及源区环境     

徐琳  肖进  刘大明  胡林  罗绍强  唐华  赵宇 《地质与资源》2022,31(6):738

南羌塘盆地江鱼玛洛地区发育中侏罗统雀莫错组,通过岩石地球化学分析,对砂岩源区环境进行恢复. 化学风化作用指标(CIW)、化学蚀变作用指标(CIA)和A-CN-K图解反映砂岩的碎屑成分遭受过较强烈的风化. 化学组分指标(ICV)和Th/Sc-Zr/Sc图解指示主要为第一沉积旋回产物,伴有少量沉积再循环物质. 岩石元素Al₂O₃/TiO₂、Th/Sc、Cr/Zr比值和La/Th-Hf源岩判别图解反映砂岩的碎屑主要来源于上地壳长英质源区,并混入少量基性铁镁质岩石. 砂岩的微量元素特征及SiO₂-K₂O/Na₂O、La-Th-Sc、Co-Th-Zr/10、Sc-Th-Zr/10判别图解均表明该砂岩形成于大陆边缘裂陷构造背景.  相似文献   

Geochemistry and chronology of Se＇ ertengshan greenstone, Inner Mongolia     

刘建忠王莉莉  张福勤李春来邹永廖  欧阳自远 徐琳 《中国地球化学学报》2005,24(1):51-56

This paper deals with the meta-mafic volcanic rocks of the Gongyiming iron deposit at Baotou, Inner Mongolia. The major and trace elements and REE data indicate that the meta-mafic volcanic rocks occurred in the environment similar to a modern continental rift. Sm-Nd and Rb-Sr isotopic studies indicated that the meta-basic rocks were formed during the Early Neoarchean from 2800 Ma to 2900 Ma and reworked during the Late Neoarchean (2500 Ma) by metamorphism. Because of the separation of the North China Craton from the Siberia Craton during the Middle Proterozoic (1600 Ma), the Rb-Sr systematics of the rocks has been changed. The Se‘ ertengshan greenstone seems to occur during the Middle Archean. A stable continental crust may have existed during the Paleoarchean.  相似文献   

VTI介质中地震波反射波合成记录的方法研究   总被引：1，自引：1，他引：1  

杜丽英  彭苏萍  徐琳  刘国明  杜丽娟 《地球物理学进展》2001,16(2):58-64

在向向异性介质中，由于地震波的相速度和群速度有较大差异，相角和群角不同，相速度、群速度及群角相与角之间的关系比较复杂，因此与各同性相比较，计算地震波相速度，群速度及群角就更加困难，其合成地震记录的难度也就之增大，本文根据VTI（具有垂直对称轴的横向各向同性）介质中地震波的运动学特征，应用射线追踪方法，计算了VTI介质中的地震波的旅行时，并合成了反 地震记录，这为反射地震波的旅行时及速度分析提供了基础。  相似文献   

DCOM远程对象接口方法调用原理及应用   总被引：1，自引：0，他引：1  

吕磊  徐琳  洪志全 《物探化探计算技术》2001,23(4):370-374

作者在文章中简述了分布式系统的发展历程，重点介绍了分布式对象计算技术的实现方法，同时，也介绍了微软DCOM的层次结构以及实现分布式对象计算的基本原理。最后以分布式GIS系统的建立为例，研究了DCOM的实现技术及结构层次。  相似文献   

Geochemistry and chronology of the Jiehekou Group metamorphic basic volcanic rocks in the Lüliang Mountain area,Shanxi, China   总被引：1，自引：0，他引：1  

刘建忠  张福勤  欧阳自远  李春来  邹永廖  徐琳 《中国科学D辑(英文版)》2003,46(11):1171-1181

Samples were systematically collected from metamorphic basic volcanic rocks in the Jiehekou and Xiyupi areas on both sides of the Lüliang Mountains, Shanxi Province and analyzed for their major elements, trace elements and rare earth elements (REE). The geochemical characteristics of their major, trace and rare-earth elements indicated that the metamorphic basic volcanic rocks in this area were emplaced in the tectonic environment like a modern continental rift. Sm-Nd and Rb-Sr isotope chronological studies demonstrated that the Jiehekou Group metamorphic basic volcanic rocks were formed during the 2600-Ma crust/mantle differentiation event, and were transformed by granulite facies metamorphism during the late Neo-Archaean period (2500 Ma ±), making the Sm-Nd systematics of the rocks reset. During the late Paleoproterozoic period (1800 Ma ±) the Rb-Sr systematics of the rocks were disturbed again in response to the Lüliang movement. Since the extent of disturbance was so weak that the Sm-Nd systematics was not affected, the age of 1600 Ma ± obtained from this area seems to be related to local magmatic activities within the craton. Research results lend no support to the idea that the Lüliang Group was formed during the Archaean. Instead, it should be formed during the Proterozoic.  相似文献   

Design and Implementation of Space Dust Database   总被引：2，自引：0，他引：2  

左维  李春来  徐琳  刘剑  刘建军 《中国地球化学学报》2004,23(2):135-140

Space debris is very dangerous to the security of on-the-orbit spacecrafts, and it is increasing in number at high speed with the expansion of human space exploration. Space debris has become a serious space pollutant noticed by many astronomers. The increase of space dust sources and the development of research on space dust urgently need space dust data sharing and exchanging. It is necessary for us to establish the Space Dust Database to realize the sharing and canonical management of the data. The Space Dust Database (SDD) management system,based on the 3-layer B/S computer mode, was designed and implemented in this paper. The system‘s features include significantly improved runtime efficiency, good scalability and maintainability. The Space Dust Database can pTovide some scientific bases for the study of the chemical constituents, mineral composition, origin and sources of space dust, but also provide excellent data services and decision-making support for the protection of space and model construction of space dust.  相似文献