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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WEBJul 1, 2021 · The LOD of Pb was reduced from 24 mg/kg to mg/kg. Kang et al. [49] used LIBSLIF to achieve ultrasensitive detection of trace Pb in water, and the LOD of Pb can be as low as μg/L. Nicolodelli et al. [50] developed a tunable continuous wavediode laser and coupled it with the double pulse LIBSLIF system to detect Pb in soil. Compared ...
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WEBFeb 3, 2017 · The spatial distribution of the five land use classes was extracted to detect land use change in the Panxie coal mining area since the 1980s and to quantitatively analyze the changes based on the OBIA classifiion from each of the land use maps in the time series (Tables 7, 8). The change matrix analysis showed that, as a whole, about .
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WEBJan 1, 2016 · Machine Learning in Soil Classifiion and Crop D etection. Ashwini Rao 1 Janhavi U 2 Abhishek Gowda N S 3 Manjunatha 4 Beham A 5. 1,2,3,4,5Department of Information Science and ...
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WEBMar 24, 2020 · Soil organic matter (SOM) is a crucial indior for evaluating soil quality and an important component of soil carbon pools, which play a vital role in terrestrial ecosystems. Rapid, nondestructive and accurate monitoring of SOM content is of great significance for the environmental management and ecological restoration of mining .
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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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WEBAug 18, 2023 · Coal spontaneous combustion disasters are one of the most serious types of mine disasters in China at present, posing a huge threat to underground personal safety and coal production operations. In order to prevent and control coal spontaneous combustion hazards and construct an efficient early warning system, this paper presents .
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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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WEBApr 15, 2024 · To predict soil parameter variability, many researchers used machine learning (ML)based approaches. The variation in organic carbon (OC) ( Schillaci et al., 2017) and OC stock ( Deng et al., 2018, Wang et al., 2018) using Landsat remotely sensed indices. The authors in Aksoy et al. (2022) employed Landsat satellite data to predict .
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WEBJul 1, 2020 · Wu et al. (2016), on the other hand, used machine learning algorithms such as ANN and GPR combined with soil formation factors (parent material, topography) and reported that machinelearning ...
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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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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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WEBMay 1, 2009 · Mackena 4860, Macul, Santiago,, Chile. ( Received 11 June 2007; in final form 5 May 2008. This paper describes the state of the art in land mine detection technology and. algorithms ...
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WEBSep 13, 2022 · China is the largest producer and consumer of coal in the world. The extraction of coal is increasing intensively to meet the needs of the everincreasing population and industries. However, coal mining has resulted in environmental changes, including deforestation, air, water, soil, and landform deterioration. This study .
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WEBOct 6, 2023 · The system. integrates sensor technology, machine learning algorithms, and agronomic. expertise to provide precise and tailored nutrient recommendations based on. the specific requirements of ...
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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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WEBFeb 1, 2017 · All these techniques detect the leakage of low amounts of chemical constituents in the surrounding area. Due to their high sensitivity, even low concentrations of explosives in the soil could be detected (Habib, 2007). A review of the methods that use chemical vapor sensing in order to detect landmines is given in Yinon (2003).
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WEBAug 11, 2023 · Coal remains a very important source of energy for the global economy. Surface and underground coal mining are the two major methods of coal extraction, and both have benefits and drawbacks. Surface coal mining can have a variety of environmental impacts including ecosystem losses, landscape alteration, soil destruction, and changes .
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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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WEBSep 1, 2023 · In view of the inconsistency of guided wave energy in distributed acoustic sensing coal mine maps and the difficulty in distinguishing the vibration levels of coal mines, which leads to the poor sensitivity and accuracy of microseism detection, a coal mine microseism detection method based on time–space characteristics and a support .
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WEBMar 14, 2024 · With the continuous development of deep learning, the appliion of object detection based on deep neural networks in the coal mine has been expanding. Simultaneously, as the production appliions demand higher recognition accuracy, most research chooses to enlarge the depth and parameters of the network to improve .
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WEBShovel. Shovel is tool which is used for the purpose of lifting of excavated soil. It is also similar to spade the difference between spade and shovel is the difference in leading edge. The curvature of metal plate of shovel is generally higher when compared to spade so we can hold the soil easily and lifted it.
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WEBNov 6, 2023 · Laixin Clean Coal Company uses a spiral sorting machine to sort + mm fine coal ore, which can effectively improve the sorting accuracy of heavy medium coal selection and reduce production costs (Wang and Wei Citation 2006). A coal preparation plant in Shanxi used a twostage spiral separator to separate the flotation tailings of No. .
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WEBJul 8, 2023 · The front end is a part of the field of soil detection, which is mainly used to monitor, extract and transmit soil temperature and humidity data. In this case, sensors are used in conjunction with serial communiion techniques to determine sensor data capture, and to receive and transmit data using shortcircuit wireless transmission ...
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WEBJul 14, 2023 · Heavy metals in soil are harmful to natural biodiversity and human health, and it is difficult to estimate the effects accurately. To reduce pollution and manage risk in coalmining regions, it is essential to evaluate risks for heavy metals in soil. The present study reviews the levels of 21 metals (Nb, Zr, Ag, Ni, Na, K, Mg, Rb, Zn, Ca, Sr, As, Cr, .
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WEBOct 24, 2023 · Soil total nitrogen is one of the most important basic indiors for fertiliser decision making, but tens of millions of soil total nitrogen sampling data have been accumulated, forming a huge database. In this large database, there is a large amount of anomalous data, which can interfere with data analysis, affect the construction of spatial .
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WEBNov 16, 2020 · Abstract Some indiors for evaluating heavy metal pollution have been proposed. However, a threshold is lacking to judge if the heavy metal concentration has reached the extent that is harmful to plant health. In order to get the threshold, aerial hyperspectral images were obtained. The spatial patterns of six soil heavy metals (Cu, .
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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, 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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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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