Results 21 to 30 of about 21,152 (308)
Applied Sciences, 2020 In this study, the ilmenite content in beach placer sand was estimated using seven soft computing techniques, namely random forest (RF), artificial neural network (ANN), k-nearest neighbors (kNN), cubist, support vector machine (SVM), stochastic gradient
Yingli LV +7 more
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Remote SensingRemote sensing applications for marine placer deposit exploration remain limited due to the mineralogical complexity and dynamic coastal processes. This study presents the first medium- to high-level detailed multi-scale remote sensing analysis of placer
Wai L. Ng-Cutipa +10 more
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Вестник университета, 2022 The article is devoted to the issues of taking into account of the population’s opinion in the implementation of the Arctic industrial development projects. Evaluation methods and selection procedures for compensation projects have been proposed, as well
E. V. Potravnaya, O. A. Krivoshapkina
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Characteristics of native gold at Kosumnerskoe placer gold deposit (the Nether-Polar Urals)
Известия высших учебных заведений: Геология и разведка, 2018 The paper presents the results of a study of heavy mineral concentrates of Kosumnerskoe gold deposit as well as the native gold from them. This gold deposit includes two gravel deposits.
M. A. Boguslavskiy, S. O. Khudyakov
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Dredging technology at placer gold deposits in the Far North
Journal of Degraded and Mining Lands Management, 2023 The volumes of world gold mining were reviewed. As a result of the analysis, it was found that the proportion of placer gold is very insignificant. This is due to the fact that the most easily accessible reserves are substantially depleted, and the ...
Ravil Z Nafikov +3 more
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Dzheltulak system of the Oktyabrsky ore-placer node of the Amur gold-bearing province
Известия высших учебных заведений: Геология и разведкаBackground. Information on the Dzheltulak large placer system of the Amur gold-bearing province, which has produced 80 tons of gold, is presented. Aim. To determine the geological and structural position of the Dzheltulak placer system, one of the most ...
V. A. Stepanov, A. V. Melnikov
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Heavy Minerals In Placer Deposit In Singkawang Waters, West Kalimantan, Related To Felsic Source Rock Of Its Coastal Area [PDF]
, 2010 Placer deposits are physically accumulated by fluvial and marine processes in coastal area. Thirty six samples were selected from seventy seven samples of seafloor sediment of Singkawang waters.
Aryanto, N. C. (Noor) +1 more
core
In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS
FEBS Letters, EarlyView.We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka +11 more
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Potential Analysis of Rare Earth Resources in Greenland
Kuangchan zonghe liyongGreenland has now discovered 14 rare earth deposits, including Kvanefjeld, the world's second largest rare earth deposit. The geological settings of the deposits vary and the metallogenic ages span widely.
Yakang YE, Wei CHEN
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The Scientific World Journal, 2013 The present paper examines the functional diversity-environment relation in a placer rich tropical bay. Understanding the environmental variables that determine the biodiversity pattern will help in the effective conservation plans of coastal habitat ...
S. K. Sivadas +2 more
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