Results 1 to 10 of about 17,849 (304)
Technospheric Mining of Critical and Strategic Metals from Non-Ferrous Slags [PDF]
MetalsThe technosphere consists of material stocks accumulated by human activities, which can include processing residue, such as slag. Various smelting processes generate slag, and some valuable elements are concentrated in this by-product.
Bona Lim +2 more
doaj +4 more sources
Remote Sensing, 2022 The southwest mountainous area of China is one of the areas with the most landslides in the world. In this paper, we used Ya’an City and Garzê Tibetan Autonomous Prefecture in Sichuan Province as the research areas to explore the identification ...
Jingtao Liang +7 more
doaj +1 more source
Dizhi lixue xuebao, 2021 Geological disaster effect of active fault zone is a major research area in the field of engineering geology and geological disaster. Located in the west margin of the Qinghai-Tibet plateau, the Ganzi area in western Sichuan Province has underwent ...
QIN Yulong +8 more
doaj +1 more source
Remote Sensing, 2022 In the process of using InSAR technology to identify active landslides, phenomena such as steep terrain, dense vegetation, and complex clouds may lead to the missed identification of some landslides.
Cong Zhao +8 more
doaj +1 more source
Zhongguo dizhi zaihai yu fangzhi xuebao, 2021 The upper reaches of Jinsha River are typical high mountain canyon areas with strong terrain cutting and deep valleys. Affected by the Jinsha River fault zone, the slope integrity is poor and the rock mass is fragmented, which makes the mountain ...
Wen LIU +7 more
doaj +1 more source
Zhongguo dizhi zaihai yu fangzhi xuebao, 2023 Gentle dip angle rock slopes are often developed in layered red rocks, which are prone to geological disasters due to the combination of soft and hard lithology.
Wen LIU +7 more
doaj +1 more source
Zhongguo dizhi zaihai yu fangzhi xuebao, 2021 Due to the development of geological structure, frequent seismic activity, strong valley cutting, high steep and narrow bank slope, extremely broken rock mass, there have been many large-scale landslides blocking the Jinshajiang River in history.Taking ...
Xichao HUANG +5 more
doaj +1 more source
Zhongguo dizhi zaihai yu fangzhi xuebao, 2023 Based on the large number, diverse types and uneven distribution of geological disasters in Yibin City, this study takes the coupling relationship between geological disaster and lithology - structure as a starting point.
Wen LIU +5 more
doaj +1 more source
New EAF Slag Characterization Methodology for Strategic Metal Recovery [PDF]
Materials, 2021 The grown demand of current and future development of new technologies for high added value and strategic metals, such as molybdenum, vanadium, and chromium, and facing to the depletion of basic primary resources of these metals, the metal extraction and recovery from industrial by-products and wastes is a promising choice.
Menad, Nour-Eddine +3 more
openaire +3 more sources
Rare Metal as a National Strategic Material [PDF]
Journal of Korean Powder Metallurgy Institute, 2009 희유금속(稀有金屬, rare metal)은 1 지각 내에 존 재량이 적거나 추출이 어려운 금속자원중 현재 산업 적 수요가 있고 향후 수요 신장이 예상되는 금속원 소, 2 극소수의 국가에 매장과 생산이 편재되어 있 거나 특정국에서 전량을 수입해 공급에 위험성이 있 는 금속원소로 정의하며 국내에서는 56개 원소를 희 유금속으로 분류하고 있다. 이는 학술적 기준이 아닌 산업적 기준이어서 희유 금속으로 분류되는 원소는 국가 혹은 시대에 따라 대 상이 변화될 수 있는데, Rare Metal Hand Book은 48개 원소, 미국은 41개 원소, 그리고 일본은 55개 원소로 정의하고 있다.
Soo-Young Lee +5 more
openaire +1 more source