WEBJan 1, 2023 · The main organic component of the SOM used in this study is soil organic carbon. The content was determined using the dichromate oxidation method [2]. ... combined hyperspectral techniques with machine learning to predict soil heavy metal content and obtained high prediction accuracy. Chen et al. [5] combined near infrared .
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WEBUpdated On Jul 23, 2021 at 02:10 PM IST. North Carolina [US], July 23 (ANI): A suite of four new tests that can be used to detect coal ash contamination in soil with unprecedented sensitivity was recently developed by Scientists at Duke University. The peerreviewed study was published in the journal 'Environmental Science and Technology'.
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WEBOct 11, 2022 · Multispectral satellite images are used for the renaturation (restoration of postmining lands to a state resembling nature) of mountainous areas as they allow monitoring the state of vegetation and the socalled acid drainage (the outflow of acidic water from iron ore and coal mines).
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WEBJan 1, 2023 · Soil corrosivity has been measured directly using soil resistivity alone or in combination with other parameters like soil chemistry. ... When used correctly, it can protect more than 99% of the pipeline surface. Coating defects can occur because of coating machine faults, rough ... The coal tar enamel coating has deteriorated, and .
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WEBJun 1, 2021 · 1. Introduction. Coal is the main energy source in China and has accounted for approximately 60% of the nation's primary energy production and consumption for many years (Qiao et al., 2019).However, coal mining activities have also caused serious damage to the environment, including from the removal of vegetative covers and topsoils, .
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WEBJul 22, 2021 · Scientists at Duke University have developed a suite of four new tests that can be used to detect coal ash contamination in soil with unprecedented sensitivity. The tests are specifically designed ...
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WEBJan 3, 2023 · Coal gangue (CG), one of the world's largest industrial solid wastes produced during coal mining, is extremely difficult to be used owing to its combined contents of clay minerals and organic macromolecules. This study explored a novel process of degrading the harmful organic compounds in the CG into humic acid using a biological method .
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WEBSep 1, 2020 · This paper presents an exploratory study employing a benchscale approach to detect the multiinformation of coal quality online by machine vision simultaneously, including particle size distribution, density distribution, the ash content of each density fraction, and the total ash content. Firstly, we adopt a FiniteErosionandExactDilation ...
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WEBFeb 1, 2018 · To address this challenge, this study proposes a hybrid approach, namely, Light Gradient Boosting Machine plus Ordinary Kriging (LGBK), for predicting the spatial distribution of soil heavy metals. A total of 137 soil samples were collected from the Shengli Coalmine Base in Inner Mongolia, China, and their heavy metal concentrations .
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WEBJan 17, 2024 · The intrinsic mechanism and impact process of how coal gasifiion coarse slag (CGCS) amends the physicochemical properties of a specific soil based on its properties are not yet clear. The study explored the properties of CGCS that can be used for soil amendment by evaluating the properties of topsoil and CGCS. Different CGCS .
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WEBMar 20, 2024 · Vibration detection methods are utilised to differentiate between coal and rock by acquiring signals from the body of the coal mining machine or the top and bottom of the rock, and cutting the ...
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WEBFeb 1, 2018 · Remote sensing of heavy metal contamination of soils has been widely studied. These studies concentrate heavily on the hyperspectral reflectance of typical metals in soils and in plants measured either in situ or in the laboratory. The most used wavebands lie within the visiblenear infrared portion of the spectrum, especially the red .
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WEBMay 15, 2020 · apply machine learning to the extraction of surface cracks in mining areas is a key requirement. T o solve the problems mentioned above, this article provides a method for detecting surface
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WEBMining tools is a general phrase that refers to all the mining equipment and mining machines used to extract minerals from the earth. Mined minerals appear in almost every consumer product—from cars, to electronics, to jewelry and more. Minerals like uranium and coal are major energy sources that account for 50% of the US's energy supply.
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WEBIt is unlikely to detect coal tars, creosotes, pentachlorophenols, or bunker C. It does not detect polychlorinated biphenyls, chlorinated alkenes and alkanes, or explosives. Detection limits are in the 100 to 500 ppm range, depending upon soil and petroleum type.
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WEBJul 17, 2022 · The surface coal mining land classes cover smaller areas compared to midresolution satellite images making them challenging to detect. Coal quarry and coal dump regions are such kinds of smaller ...
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WEBApr 1, 2024 · Deep learning, a machine learning algorithm based on artificial neural networks, ... Yan Pengcheng et al. used multispectral technology to collect spectral images of coal gangue, used YOLOv5 to detect coal gangue, and loed coal gangue through the builtin positioning function [18].
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WEBDec 4, 2023 · A comparative analysis of machine learning algorithms for predicting the thermal decomposition of coal fuel is shows that a mathematical model based on an artificial neural network model can ...
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WEBDec 7, 2023 · Sustainable agricultural practices help to manage and use natural resources efficiently. Due to global climate and geospatial land design, soil texture, soil–water content (SWC), and other parameters vary greatly; thus, real time, robust, and accurate soil analytical measurements are difficult to be developed. Conventional statistical analysis .
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WEBFeb 1, 2024 · The commonly used HM soil safety assessment methods have made great contributions to human health and ... and the life cycle method is used to detect and calculate the carbon emissions of solid waste ... in coalmining contaminated soil. Chemosphere: Environ. Toxicol. Risk Assess., 240 (2020), pp., .
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WEBFeb 26, 2024 · The Xinjiang coalfield fire area ranks No. 1 in the world in terms of its area, and it has been burning for nearly a thousand years. According to the results of the fifth coalfield fire area ...
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WEBFeb 15, 2024 · Zhang et al. used YOLOv4 to detect coal and gangue; the mAP and detection speed of Ourv8 were 2% and FPS higher than theirs, respectively. Wen et al. proposed a YOLOv5Swin to detect coal and gangue, with an mAP of % and a detection speed of 147 FPS. However, the detection accuracy is still slightly lower than .
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WEBAug 15, 2023 · Oil Pump Jack: Mechanical device used to extract oil from wells. Gas Dehydration Unit: Removes water vapor from natural gas. Gas Sweetening Unit: Removes hydrogen sulfide and other impurities from gas. Oil/Water Separator: Separates oil and water from produced fluids.
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WEBJun 13, 2012 · Sector scorecard. GlobalData predicts that the revenue from IoT in mining will grow to reach billion by 2025, with a compound annual growth rate (CAGR) of % between 2020 and 2025. Ensure your company is proactive in adapting strategies and processes to help you remain competitive. Download the full report to get ahead of the .
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WEBP. Panel A coal mining block that generally comprises one operating unit. Panic bar A switch, in the shape of a bar, used to cut off power at the machine in case of an emergency. Parting (1) A small joint in coal or rock; (2) a layer of rock in a coal seam; (3) a side track or turnout in a haulage road.
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WEBOct 1, 2019 · Other researchers [83] [84][85][86][87] used ML models to segment coal types (classified by different fixed carbon content in coal) [83], geology type (bituminous coal, lignite, sandstone, soil ...
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WEBOct 1, 2022 · However, soil organic matter, iron and manganese oxides, clay minerals, and other soil spectral active components have a strong adsorption and occurrence relationship with heavy metals in the soil, resulting in a significant correlation between heavy metal content and soil spectrum (Liu et al., 2011, Shi et al., 2014). This correlation provides ...
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WEBModern mining is adopting advanced sensorbased technologies to enhance operational safety and efficiency and optimise mine productivity. Sensors are used in each step of the mining operation, from mine exploration, surveying, and underground mapping, to ore extraction, sorting, and mineral processing.
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WEBCoal mining Underground, Surface, Drilling: The various methods of mining a coal seam can be classified under two headings, surface mining and underground mining. Surface and underground coal mining are broad activities that incorporate numerous variations in equipment and methods, and the choice of which method to use in extracting a coal .
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WEBOnly the QED can do all this: Identifies the type of petroleum hydrocarbon in the sample. In fact the QED can identify up to three different hydrocarbons in one sample in a single 2 second analysis. Gives you the hydrocarbon concentration. Provides accurate results for Coal Tar, total BTEX, GRO, DRO, TPH, sum 16 PAH and BaP in one 2 second test.
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WEBAug 3, 2010 · It can even detect bodies buried beneath concrete, as long as you drill a 1/8inch hole for the probe. The system involves a small aluminum pipette that can detect trace amounts of a chemical ...
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A material supplier from Belgium would like to produce limestone powder for his custome...
India is rich in various mineral resources and it is an important mineral processing market
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