Results 71 to 80 of about 62,130 (172)
Dianci bileiqi, 2016 利用时域有限分析法,计算了在正弦平面波入射的条件下,圆柱形接地导体与有棱边角形状导体的电磁散射的散射场,分析了探地雷达图像是否可以区别圆柱形导体和因腐蚀形成的不规则导体。结果表明不同形状的接地体,其电磁散射场的幅值和相位均有明显不同特征,探地雷达图像可有效反映圆钢接地体腐蚀点处形状的变化。
梁皓澜 +4 more
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Submarine topographic surveys using a multibeam echo-sounder with new vessel “Shirase“ initiated from JARE-51 [PDF]
, 2016 第30回極域地学シンポジウム「極域から探る固体地球ダイナミクス ...
三浦 英樹 +3 more
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Tellurium (Te), emerging as a promising alternative to sulfur (S) and selenium (Se), offers significant advantages for potassium (K) ion storage due to its comparable theoretical volumetric capacity (2619 mAh cm−3) and higher electronic conductivity (∼102 S m−1), which promotes rapid charge transfer and improves reaction kinetics.
Sung Woo Cho +7 more
wiley +1 more source
Shuitu Baochi Xuebao, 2005 首先论述了以地理信息系统(GIS)为平台，基于分形信息维数(FID)表征地貌形态特征的原理和方法．采用Avenue语言开发了基于ArcGIS环境下地貌形态特征FID计算软件；并以长江流域白水溪小流域为例，进行了不同等高距下地貌形态特征FID的计算，通过对FID与等高距耦合关系的深人分析，结果表明：基于FID不仅可以对流域地貌形态特征进行宏观性、综合性定量表征，而且能够实现不同等高距下流域地貌形态特征的相互转换，有利于与流域形态特征相关联的水文、水土流失过程的动态模拟．同时可实现对现有地形数据的充分挖掘 ...
朱永清 李占斌 崔灵周 鲁克新 李鹏
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Gaoya dianqi, 2020 山区地形不同位置的地闪密度差异较大。为了研究山区地形对地闪密度的影响,文中首先基于雷电定位系统数据利用Google Earth和ArcGIS软件分析了山体不同部位的地闪密度差异,然后分析了某条500 kV输电线路的雷电绕击跳闸率计算结果。研究发现:改进网格法筛选范围小于400 m时地闪密度明显大于实际情况,大于1 600 m时山顶、山坡、平地的地闪密度趋于一致,抵消了地形的差异性;山区地形的地闪密度随着山体海拔高度的变化而变化,整体呈现出山顶地闪密度>山坡>山谷的规律 ...
胡豪, 陶鑫
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, 2014 The factors related to shallow slope failures include soil depth, vertical soil structure, and bedrock topography. In this study, we surveyed spatial variations of soil depth and vertical soil structure by conducting simplified penetration tests, and ...
Meng-Chun Chan +3 more
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Wildlife Letters, Volume 4, Issue 1, Page 42-55, March 2026.This review summarizes the status of musk deer in China, highlighting severe population declines due to illegal hunting and habitat loss, and proposes integrated conservation strategies including habitat protection, captive breeding, and law enforcement to support the recovery and sustainable management of this ecologically and economically important ...
Feng Jiang +8 more
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Functional Ecology, Volume 40, Issue 3, Page 636-654, March 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract The nested subset pattern (nestedness) has been widely used to explain species distributions in island and fragmented systems. Mountain sky islands serve as critical natural laboratories for understanding the evolutionary consequences of geographic isolation and climate
Caiwen Zhang +5 more
wiley +1 more source
Shuitu Baochi Xuebao, 2022 为探究坡形对浅沟发育的影响，以陕西省靖边县狼儿子沟无人机航摄影像为基础数据，通过目视解译得到浅沟（指瓦背状地形底部）225条，统计了浅沟条数、浅沟长度、沟头到分水岭的距离及浅沟密度等指标。利用浅沟地形分水线上的高程点进行插值得到原始坡面数字高程模型（digital elevation model，DEM），以此DEM提取地形曲率以表征坡形，进而分析坡形与浅沟指标的关系。结果表明：（1）以浅沟地形分水线上的高程点插值后的DEM对浅沟进行了综合，能较好地表达浅沟发育之前原始坡面的地形特征。（2 ...
王海于 +4 more
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, 2014 梅姬颱風 (2010) 與東北季風之共伴效應於台灣宜蘭縣蘇澳地區帶來了豐沛降雨，高累積雨量造成了台9 線蘇花公路群集性土砂災害，尤其在115.9K 上邊坡更誘發了約210 萬m3 之大規模崩塌土砂災害。本文從現地地質調查、致災機制、水文分析及遙測影像判釋等面向進行討論。由降雨-延時-頻率分析得知近年來誘發重大崩塌事件的雨量皆高於200 年回歸週期，並獲致良好判別致災雨場之I-R 圖降雨臨界線關係(Re+53.5Iave=1,146)。多時期遙測影像判釋指出東澳嶺坡頂之弧型張力裂隙仍有持續溯源發展之趨勢 ...
Ching-Fang Lee +13 more
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