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the heavy metal of natural origins and that caused by human activities. Supported by GIS, Kosaka watershed within the Hokuroku basin was divided into several sub-watershed polygons and the outflows... the water quality of upstream tributaries and human drainages. Key words: mine drainage; river water; heavy metal; geographic information system (GIS); Kosaka watershed 1 Introduction Mine drainage......
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J. Cent. South Univ. Technol. (2010) 17: 1049-1057 DOI: 10.1007/s11771-010-0597-y Clustering-driven watershed adaptive segmentation of bubble image ZHOU Kai-jun(周开军)1, 2, YANG Chun-hua(阳春华)1... by reconstruction operation, which consist of image regional markers, and the bubbles were finely separated from each other by watershed transform. The experimental results show that the structural......
. Key words: flotation; bubble size; valley edge detection; watershed segmentation ... size estimation obtained from spot size distribution is rough and inaccurate. SADR-KAZEMI and CILLIERS[3] proposed a watershed algorithm to segment coal flotation froth image. The assumption of white......
to the evolution degree of underground karst. Based on the karst landform patterns, the distribution patterns of underground stream system is reconstructed in small karst watershed, the degree of development... watershed 广西平果堆积铝土矿是由二叠纪原生铝土矿经过剥蚀风化形成的次生矿床[1].矿区处在云贵高原边缘的桂西地区,是岩溶侵蚀强烈的地区[2],矿区堆积矿表现了与岩溶侵蚀早期地系二元结构的控制[3].平果矿区岩溶地貌的演化是小流域水系的发展演化,由此决定矿区岩溶地貌与堆积矿分布特征.在桂西和周边地区,堆积型铝土矿分布广泛[4],因此,对堆积矿岩溶地貌环境和成矿作用进行研究具有普遍意义.在此......
to separate bubble objects into solitary bubbles, small overlapping bubbles and large overlapping bubbles. The overlapping bubbles were segmented into solitary bubbles by using improved watershed... of Sauter mean diameter and the maximum diameter has an average value of 0.72. Key words: image processing technology; bubble size distribution; improved watershed algorithm; Sauter mean diameter 底吹熔池熔炼是......
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从重选尾矿中浮选回收微细粒白钨矿试验研究朴永超,朱阳戈,王中明北京矿冶研究总院矿物加工科学与技术国家重点实验室摘 要:澳大利亚Watershed白钨重选尾矿含WO30.45%,其中-25μm的微细粒级金属分布率高达83.59%,且含有碳质,云母等易浮脉石,回收较为困难.针对此难选矿样进行了白钨浮选回收试验研究,最终以BK416为捕收剂,采用"预先浮选-常温浮选-加温精选"工艺,获得了WO3品位59.13%的钨精矿,选矿回收率65.72%.关键词:白钨矿;细泥浮选;加温精选;BK416;......
image.Starting from these seed regions,the watershed method was used to segment ore object effectively.The proposed algorithm marks and segments most objects from complex images precisely.关键词:......
to evaluate the health of a watershed and make necessary management decisions to control current and future pollution of receiving water bodies. In this work, surface water quality data for 12 physical......
