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A method and system for evaluating rainfall erosivity in karst mountainous areas
Pending
CN122414036A
Hydrometry
Soil science
本发明公开了一种面向喀斯特山区的降雨侵蚀力评估方法及系统,涉及生态环境监测技术领域,该方法基于无人机正射影像构建地表点云,按网格选最低点生成地面候选点,并依据高程差与坡度判定地面点生成数字高程模型,对数字高程模型划分评估单元并输出静态地表数据;依据在各评估单元布设的雨量监测装置实时采集水文时序数据,并统计侵蚀性降雨日数据;依据侵蚀性降雨日数据构建雨团集中结构指数Gjz,并进行雨团分布判定;在雨团分布判定为雨量在时间上分布集中时,分别构建岩土断续耦合指数Kdo和汇渗切换指数Dsq,并与雨团集中结构指数Gjz拟合计算,构建综合侵蚀驱动值Eqd进行综合侵蚀评估。
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INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
An anti-erosion castable and its preparation method and application
Pending
CN122403949A
Metallic aluminum
Silanes
本发明提供了一种抗侵蚀浇注料及其制备方法和应用,包括如下组份:棕刚玉、球状沥青、铝酸钙水泥、活性氧化铝、硅微粉、金属硅、金属铝粉、分散剂、复合改性添加剂;其中,所述复合改性添加剂包括为碳化硅和氧化钇稳定氧化锆,并通过γ‑氨丙基三乙氧基硅烷预处理以及丙烯酰胺接枝改性。本发明所述的坩埚相较于现有技术使用的石墨坩埚,实现了骨料堆积紧密,基质在高温条件下结合强度高的目的,具有优异的高温强度、高温抗氧化和抗侵蚀性能,工作时长大幅度增加,不仅可以提高测试的有效运行时长,还可以重复使用,降低测试成本。
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Owner:
TIANJIN BAOGANG RES INST OF RARE EARTHS CO LTD
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