利用光栅光谱仪在可见与紫外辐射范围对闪电光谱的研究

1.前言过去有关闪电光谱摄影、识别的研究工作,早期的有匹口灵（E.C.Pickering）、福克斯（Ph.Fox）、斯利否（V.M.Slipher）等人.以后有涂飞（J.Dufay）、依斯拉尔与符尔姆（H.Israel and K.Wurm）、尼可来（M.Nicolet）及涂飞（J.Dufay）与程茂兰等人的包括可见范围的工作.M.涂飞（M.Dufay）作过紫外范围的工作.近来兆士（P.D.Jose）等人曾进行了红外范围的工作.     

西藏扎布耶盐湖晚更新世沉积学及古气候意义

从粘土矿物、碳酸盐矿物、孢粉、介形虫等方面,讨论了西藏扎布耶盐湖晚更新世的气候条件.603±2.7kaB.P.、142.2±7.4kaB.P.时期,扎布耶为间或有一定盐度的淡水湖,前期湖水含盐量比后期高.气候寒冷,风化作用不强,物理风化作用为主.高岭石(60.3±2.7kaB.P.)和厌热性介形虫Radix.Bowelli(142.2±7.4kaB.P.)的出现说明,142.2±7.4kaB.P.时期气候偏干冷,气温比现在低;60.3±2.7kaB.P.气候偏湿冷.比较方解石中Mg含量可知,60.3±2.7kaB.P.比142.2±7.4kaB.P.的湖水盐度高.     

西藏吉隆-沃马盆地龙骨沟剖面古地磁年代学及喜马拉雅山抬升记录

研究了西藏吉隆—沃马盆地龙骨沟剖面新近纪沉积环境,作了古地磁年代学研究,认为喜马拉雅山北坡新生代断陷盆地发育始于7.2MaB.P., 3.2MaB.P.湖盆萎缩消亡,标志着喜马拉雅山地区在7.2MaB.P.和3.2MaB.P.发生过强烈的隆升事件.沃马盆地龙骨沟剖面所含三趾马动物群化石层年龄大约为7.0～6.7MaB.P.,隐示着此时青藏地区三趾马生活区与当时的华北平原三趾马生活区有着大体相当的地理、气候环境.之后由于喜马拉雅山持续抬升,断陷盆地下沉,并在5.9～3.6MaB.P.期间湖盆面积最为广阔.青藏高原抬升而华北平原沉降, 中国西部地区地形高于东部,东西部气候环境发生重大差异.3.6MaB.P.由于青藏地区持续强烈隆升,西部地区河流切穿古老湖盆,3.20MaB.P.吉隆—沃马湖盆萎缩,于1.7MaB.P.逐渐消失,进入侵蚀切割阶段.     

内蒙古高原黄旗海、岱海全新世湖泊演变研究

对内蒙古高原全新世以来黄旗海、岱海湘泊演变过程及其演化规律进行探讨,得出12000—8500a B.P.时湖面回升.但有小的波动;8500—6000a B.P.时为高湖面时期;5000a B.P.前后湖面下降;4000—3500a B.P.时湖面再度上升;3000a B.P.以后湖面急骤收缩,但仍有多次停滞与退缩。造成湖面波动的主要原因与气候变化有关;近期变化还与人类不合理利用有关。     

《防灾减灾工程学报》文后参考文献表著录格式

1.引用文献采用顺序编码制,其文献编号以正文中引用先后依次排序。2.文献表中论文作者3位以下的,全部列出;3位以上的,列出前3位,后面用＂,等＂表示。3.所有非英文引文均须列出相应的英文。4.著录格式专著：[序号]著者姓名.书名[M].出版地：出版者,出版年.页次.文集：[序号]文献著者姓名.析出文献名[C]∥文集编著者.文集名.出版地：出版者,出版年.起止页.     

《湖泊科学》创刊(1989年)以来全部论文电子版上传完毕

《湖泊科学》创刊(1989年)以来的全部论文的电子文档(.pdf格式)已经全部上传完毕,目前《湖泊科学》网站(www.jlakes.org)提供免费下载.您可以通过www.jlakes.org各期目录栏目来获得相关论文.下载     

黑龙江阿城晚二叠世安加拉-华夏混生植物群——兼述古亚洲洋的关闭问题

记录了产自黑龙江阿城地区上二叠统红山组的20种植物化石,包括Pecopteris tangwangheensis Huang, C. obese Huang, C. shenshuensis Huang, C. tangwangheensts Huang, C. heilongjiangensis Huang, C. zeilleri Zalessky, C. sp., Comia yichunensis Huang, C. tenueaxis Huang, Iniopteris sibirica Zalessky, Supaia teiliensis Huang, Compsopteris tchirkovae Zalessky, C. cf. adzvensis Zalessky, Nilssonia sp. 1, Nil. sp. 2, Taeniopteris cf. densissima Halle, T. cf. nystraemii Halle, T. sp., Noeggerathiopsis derzavinii Neub.等．植物群主体为安加拉型,但共生有晚期华夏植物群的重要分子,显示了混生植物群的特点．主要分子的地史分布及与相似植物群的对比表明该植物群的时代为晚二叠世晚期,其混生的特点指示西伯利亚板块在晚二叠世和华北板块于西拉木伦河-长春-延吉缝合带拼合,古亚洲洋关闭．     

二维高斯迭代平滑滤波曲率属性及其应用

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基于改进的广义S变换的低频阴影检测

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关于单点高密度地震数据的室内组合分析

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