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In this study,we aimed to study the phylogeographic pattern of Juniperus sabina,a shrub species commonly occurring in th......
The mechanism of Zr-DBP crud dissolved in Na2CO3 solution was studied by both infrared spectrum analysis and extraction ......
Paleoenvironmental changes in southern Siberia during the Late Pleistocene and Holocene-evidence fro
Worldwide terrestrial and marine sedimentary archives demonstrate that the last 50 ka interval in the Earth’s history e......
Sea surface temperature evolution in the western South China Sea since MIS 12 as evidenced by plankt
Based on the detailed planktonic foraminifera faunal count and Globigerinoides ruber Mg/Ca ratio analysis of Core MD05-2......
Evolution of drainage systems and its developing trend in connection with tectonic uplift of Eastern
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Evolution of drainage systems and its developing trend in connection with tectonic uplift of Eastern
The Eastern Kunlun Mt. had been subjected to uplift together with the Qinghai-Xizang (Tibet) Plateau before the Early Pl......
基于对多孔径拼接测量技术基本原理的研究,提出在拼接坐标变换时采用四元数法进行子孔径的旋转和平移,推导构建了多孔径拼接数学模......
针对胜利油田临盘采油厂的高含水稠油，研制出了低温高效破乳剂TKQ。该破乳剂由酚胺树脂聚醚和聚酰胺-季铵盐两种组分组成。结果表明......
ＱｕａｔｅｒｎａｒｙＧａｓｆｉｅｌｄｉｎＱａｉｄａｍＢａｓｉｎ￥ＬｅｉＢｉｎｇｚｕ（ＱｉｎｇｈａｉＰｅｔｒｏｌｅｕｍＡｄｍｉｎｉｓｔｒａｔｉｏｎ）ＰａｎＣｈａｏ（ＮｏｒｔｈｗｅｓｔｅｒｎＰｉｐｅｌｉｎｅＣｏｎｓｔｒｕｃｔｉｏｎＨｅａｄｑｕａｒｔｅｒｓ.........
根据相区邻接规则和扩散偶中的相区分布的关系, 运用三元扩散偶方法确定三元系中的四相转变从而导出三元系中相转变与扩散偶中相区......
由于湖北建始龙骨洞洞穴沉积地层年代存在疑问，对建始龙骨洞沉积剖面的154块样品进行了磁性地层学再研究，并建立了磁极性序列，结果显......
姿态解算是进行导航解算的基础,姿态的估计精度会直接影响最终的导航精度,在惯性行人导航中,足部的运动加速度变化剧烈,导致常见的......
坡耕地水土及养分流失严重,该研究于2011年利用赣北第四纪红壤区野外径流小区定位观测试验数据,分析坡耕地水土及氮、磷、有机质流......
基于专门针对数字彩色图像的边缘检测方法比较少,本文提出了一种改进的基于四元数进行彩色图像边缘检测的有效方法,通过减少计算量......
Investigations on stratigraphy, geomorphology and neotectonic movement in the Eastern Kunlun Moun-tains show that there ......
One of the issues that geomorphology researchers have focused on is to trace the geomorphic effects and the snow lines i......
将氯甲基化聚砜超滤膜浸泡于三甲胺水溶液中制得季铵化聚砜超滤膜。本文就一些反应条件对季铵化聚砜超滤膜性能的影响进行了探讨，同......
