تعتبر شركة Olux شركة رائدة ومتميزة على المستوى الدولي في مجال البحث والتطوير وتصنيع وبيع محطات التكسير والغربلة واسعة النطاق ومعدات الطحن الصناعية ومصانع الاستفادة.
Innovation plays a critical role in the mining industry as a tool to improve the efficiency of its processes, to reduce costs, but also to meet the increasing social and environmental concerns among communities and authorities. Technological progress has also been crucial to allow the exploitation of new deposits in more complex scenarios: lower ore …
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Bauxite ore, found in flat, layered deposits beneath the surface of the earth, is loosened with explosives once bulldozers have cleared the surface above. Using the Bayer Process, which involves the use of heat, pressure and sodium hydroxide, the aluminum oxide is separated from impurities, … See more
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Surface mining/open-pit mining is the oldest form of resource extraction involving minerals from the Earth's surface. While old surface mining methods were labor-intensive, modern techniques utilize heavy machinery to …
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Yukselturk et al. (2014) trained and tested the data set using the 10-fold cross validation method, similar to our research, and found the performance of decision trees according to the accuracy ...
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Open cut mining or open pit mining is a surface mining technique of extracting rock or minerals from the earth by their removal from an open pit or burrow (Scott et al. 2010; Li et al. 2014). It ...
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As the world's largest resource production and consumption country, China is rich in mineral resources, but its per capita occupancy is lower than the world average. In this context, mining enterprises need to choose efficient, green, and safe mining methods. The backfilling method has been paid more and more attention in domestic mines because of its remarkable …
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There are four main mining methods: underground, open surface (pit), placer, and in-situ mining. Underground mines are more expensive and are often used to reach deeper deposits. Surface mines are typically used for more shallow and …
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and mining methods (Bascetin et al., 2006). In 2009, Naghadehi and Mikaeil, using FAHP and considering 13 parameters, developed a model for the MMS process. Their model had underground mining methods as candi-dates of the process; additionally this model had been proposed for Jajarm bauxite mine and it was not extend-
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Surface mining; Classification of surface mining methods together with the desired parameters/ conditions suitable for their applications; Open pit mining; Classification of quarrying methods ...
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In the past decades, attempts were made to build a systematic approach to mining method selection (MMS) Ooriad et al, (2018). This is because MMS is a complex and irreversible process.
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Over the years, the impact of mining on the economy, environment, and society has attracted several views (Balasubramanian, 2017; Festin et al., 2018;Mensah et al., 2015;Ocansey, 2013). A study ...
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Bajic et al. (2020) used fuzzy AHP for mining method selection at the Borska Reka copper mine in Serbia. Mijalkovski et al. (2021) used the ELECTRE, PROMETHEE, ...
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PDF | Underground Mining Methods; Soft rock Mining Methods; Blast mining; Shortwall mining;Coal Skimming (or Sink and Float) method; Hard rock Mining... | Find, read and cite all the research you ...
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Mining and processing of aluminum ores involve extraction of the ore, followed by refining to obtain aluminum metal, which can be done through various methods, including open-pit mining, underground mining, and refining …
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To detect frequent alarm itemset patterns, Hu et al. [25] proposed a closed pattern mining method to discover and determine representative itemset patterns from alarm sets. To distill sequential patterns where alarm orders were essential, the PrefixSpan algorithm was applied and demonstrated to be effective [26], [27], [28] .
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Alloys of aluminum are light, strong, and formable by almost all known metalworking processes. They can be cast, joined by many techniques, and machined easily, and they accept a wide variety of finishes.
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The following discussion and illustrations of mining methods are based on Guither et al. (1984). Room and pillar. In room-and-pillar mines, coal is removed from haulage-ways (entries) and selected areas called rooms. Pillars of unmined coal are left between the rooms to support the roof. Depending on the size of rooms and pillars, the amount of ...
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Geochemical Methods and the Mining Industry. As populations expand, the demand for resources like mineral deposits increases. These deposits are often considered geochemical anomalies, making their detection and environmental impact assessment dependent on geochemical techniques. ... Kyser, K. et al. (2015). Applied Geochemistry in Mineral ...
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Primary production involves mining bauxite deposits from the earth, chemically refining it into pure aluminum oxide and performing electrometallurgical processing to ultimately form aluminum. Secondary production makes new …
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The systematic framework presented in this study includes the following steps: 1—Examining the position of regression in research conducted in data mining and determining the trend of different ...
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Even pleiotropic genes have a strong impact on DM onset and progression. It's a fact that pleiotropic genes cannot be easily associated with important diseases. To this end, Park et al. developed an association rule mining-based method to discover patterns of multiple phenotypic associations over 52 anthropometric and biochemical traits [131 ...
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River Sand Mining and Mining Methods Abstract Large-scale sand extraction from river environment for building constructions is a global phenomenon. Indiscriminate sand mining imposes a series ... (Kondolf et al. 2002). Further, river channel sediments are crucial for building fluvial landforms. In the active part of
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the mining method after the beginning of the project can be quite time-consuming and expensive (Balusa and Singam 2017). Thus, the proper extraction method must be selected ... 406 A. Afradi et al. 1 3 2.2 Methods Nicholas method: In 1981, a numerical method was pro-posed by a researcher called Nicholas which was con-
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Depending on the material extracted, there are different types of mining processes that can be used to retrieve desired materials. While there are numerous types of mining processes, the most common is surface mining. …
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In the mining industry, Dehghani et al. (2017) used GRA to select a mining method. To assess mine safety, Xu Q and Xi K [34] used GRA in combination with bow tie. GRA was used to study the coal mines accidents by Shuai and Jin-Long [35]. In 2018, Bao et al. applied GRA in combination to DEA model to evaluating the safety benefits of the mining ...
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In this study, the underground mining methods are ultimately appraised using deep comparative analysis and classified based on the percentage of possible automation. ... Reller A. et Al. 2017) ...
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Apriori Pruning and Scalable Mining Methods Apriori pruning principle: If there is any itemset which is infrequent, its superset should not even be generated! (Agrawal & Srikant @VLD94, Mannila, et al. @ KDD 94) Scalable mining Methods: Three major approaches Level-wise, join-based approach: Apriori (Agrawal & Srikant@VLD94)
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DOI: 10.1016/j.artmed.2004.07.002 Corpus ID: 13545404; Predicting breast cancer survivability: a comparison of three data mining methods @article{Delen2005PredictingBC, title={Predicting breast cancer survivability: a comparison of three data mining methods}, author={Dursun Delen and Glenn Walker and Amit Kadam}, journal={Artificial intelligence in medicine}, year={2005}, …
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Schematic of resource distribution for the combination mining method (Chung et al., 2016). Generally, when there is a potential to employ the combined OP and UG mining method, the resource distribution for each mining method is inversely proportional. If the final pit goes deeper, the potential resource available for the UG mining method is lesser.
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Oikawa et al. employed this method to excavate the diterpene cyclase of aphidicolin in P. betae. Toyomasu et al. applied this method to excavation of the terpene cyclase from Phomopsis amygdali, and obtained the diterpene cyclase of labdanate. Compared with the direct gene cloning, the gene cluster retrieval method does not require the ...
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Longwall mining method. (Mishra et al., 2013b). Board and Pillar's method is the most common . method of UG mining. In this method, a series of . pillars are made to support the r oof while t he .
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Different mining methods are designed to produce different types and magnitudes of displacements, in the near-field and far-field domains of an orebody. For example, the mining method illustrated schematically in Figure 12.2 is designed to restrict rock displacements in both the near field and the far field of the orebody to elastic orders
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Surface mining, specifically open-pit mining, is employed due to the shallow depth at which bauxite is typically found. The soil layers in these areas contain various minerals, iron oxides, …
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Taking the Miao-ling gold mine in China as an example, the AHP-TOPSIS comprehensive decision model of mining method optimization is established, the comprehensive superiority degrees of the four ...
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mining method. Balusa et al. (2018b) used AHP, WPM and PROMETHEE to deter-mine the effective mining method for a bauxite mine. Balusa et al. (2019a) used AHP,
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In the past, the traditional mining method selection depended on the previous engineering examples or experience of experts or mining companies (Namin et al., 2022). Expert experience, knowledge, and the decision-maker's intention play important roles during the decision-making process of mining method selection (Xu and Wei, 2004).
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