Background Land use/cover and management practices are widely known to influence soil organic matter (SOM) quality and quantity. The present study investigated the effect of different land use,, forests viz. mixed forest cover (MFC), Prosopis juliflora (Sw.) DCdominated forest cover (PFC), and cultivated sites viz. agriculture field (AF), vegetable field (VF), respectively, on soil ...
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Aims The objective of this paper was to develop a method based on infrared spectroscopy to compare mineral content in soils and apply it to evaluate soil mineralogical variations in pairs of interpatch and patch soils in a semiarid area. Methods Mixtures of several minerals were analyzed by infrared spectroscopy, the second derivative of the spectra was calculated and the spectra normalized ...
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Keywords Coal Mine Index Surface Coal Mining Coal Dump Region Coal Quarry Region Morphology Opening Mine Water Body Single Class SVM Bare Soil Index Download conference paper PDF 1 Introduction Surface mining is a widely used excavation technique, even though it has different adversities in the environment, ecology, and society.
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Toxic metals are typically present in "free" quantities in biological systems due to the presence of tiny biological ligands that can form mixed aquabioligand complexes with metals. In vivo complex formation reactions often take the form of ligand or metal exchange reactions involving hazardous metals and chelating agents [17].The equilibrium constant and complex formation are extremely ...
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July 22, 2021 DURHAM, 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 to analyze soil for the presence of fly ash particles so small other tests might miss them.
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Subtle variations in the measured properties can be used to determine the abundance and composition of key minerals at Earth's surface. For example, specific spectral absorption features and ...
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Soil is a fundamental element for food production and other needs of the global population. Optimizing natural resources is a crucial aspect of supplying the growing population with food [].One significant element in cultivation is soil moisture, which regulates the flow of water and energy from the atmosphere to the field [].Soil moisture is the quantity of water in the soil expressed as a ...
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The belt conveyor is the most commonly used conveying equipment in the coal mining industry. As the core part of the conveyor, the belt is vulnerable to various failures, such as scratches, cracks, wear and tear. Inspection and defect detection is essential for conveyor belts, both in academic research and industrial applications. In this paper, we discuss existing techniques used in ...
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Automation is a game mechanic that enables players to automate parts of their bases to run without needing to interact with control panels, move resources, or turn power on or off. It could help with automating the production of any resource, item, or machine. Common examples of factories made with this automation are Nanocarbon Alloy and Hydrazine factories, though they can achieve almost ...
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A coal extraction machine that tears the coal from the face. Road Header. A piece of excavating equipment consisting of a boommounted cutting head, a loading device usually involving a conveyor, and a track to move the whole machine forward into the rock face. Rock Breaker. A machine to break large rocks into smaller pieces.
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Borehole temperature measurements were the primary tool used to detect underground coal fires until 1963, when the United States began to use thermal remote sensing (TIR) techniques to detect and monitor coal fires [6,15,19]. Since then, TIR has proven to be a reliable and useful tool for identifying and monitoring underground coal fires.
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Kjeldahl method. The Kjeldahl method or Kjeldahl digestion ( Danish pronunciation: [ˈkʰelˌtɛˀl]) in analytical chemistry is a method for the quantitative determination of nitrogen contained in organic substances plus the nitrogen contained in the inorganic compounds ammonia and ammonium (NH 3 /NH 4+ ). Without modification, other forms of ...
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Radiocarbon dating helped verify the authenticity of the Dead Sea scrolls.. Radiocarbon dating (also referred to as carbon dating or carbon14 dating) is a method for determining the age of an object containing organic material by using the properties of radiocarbon, a radioactive isotope of carbon.. The method was developed in the late 1940s at the University of Chicago by Willard Libby.
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This method was specifically developed for determining the nitrogen contents in organic and inorganic substances. In today's world, Kjeldahl nitrogen determinations are used on several samples like wastewater, soil, fertilizers, meat, feed, grain, and many other substances. The method is also used for estimating the protein content in foods.
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Coal analyzer. Coal analyzers are bulk material analyzers used by coal producers, coal preparation plants, and coalfired power plants to determine coal quality in real time. Coal quality parameters of greatest interest include ash, moisture, sulfur, and energy density (also known as heat content ). Although most coal operations can obtain this ...
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The coal pulverizing system is an important auxiliary system in thermal power generation systems. The working condition of a coal pulverizing system may directly affect the safety and economy of power generation. Prognostics and health management is an effective approach to ensure the reliability of coal pulverizing systems. As the coal pulverizing system is a typical dynamic and nonlinear ...
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Mineral Rare Earth Elements Analyzers. Portable Xray fluorescence (XRF) technology can be used in a wide range of mineralogical and geological exploration markets, one of which is the mining of Rare Earth Elements (REEs). REEs are defined as the 15 lanthanides plus scandium (Sc) and yttrium (Y), and they are critical components in consumer ...
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The labs large scale direct shear test frame (300,000 pound axial and shear forces) with programmable control is used for biaxial testing on rock, concrete, and soil samples. The sample size can vary from 1 inch diameter rock cores to 14 inch square concrete blocks. Safety Research Coal Mine and Experimental Mine
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The available nutrient status of the mulberry gardens in the districts of Tamil Nadu is analyzed and evaluated to find the status. In this work, the soil is classified based on the test report to a number of features with fertility indices for boron (B), organic carbon (OC), potassium (K), phosphorus (P), and available boron (B), along with the parameter soil reaction (pH). A total of 10 steps ...
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October 22, 2019. Source: Duke University. Summary: Scientists have developed a forensic tracer that uses lead isotopes to detect and measure coal fly ash in dust, soil and sediments. Tests show ...
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[28] used a Convolutional Support Vector Machine (CSVM) network to classify buried objects, shape type, and soil type in GPR B scan images. Liu et al. [29] used deep learning to process GPR data of concrete and achieved nondestructive detection and localization of steel bars in concrete. The abovementioned studies showed the feasibility and ...
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The coal delivered from the mine that reports to the coal preparation plant is called runofmine, or ROM, coal. This is the raw material for the CPP, and consists of coal, rocks, middlings, minerals and contamination. Contamination is usually introduced by the mining process and may include machine parts, used consumables and parts of ground ...
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The seven micronutrients boron, chlorine, copper, iron, manganese, molybdenum, and zinc are used in very low quantities for crop production ( Figure 2 ). Corn leaves showing zinc deficiency. Interveinal striping in center of leaf is surrounded by green borders/margins. Figure 1. Sources of the sixteen nutrients essential for crop ...
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This demonstrates that the SEM has good potential of being an effective coal seam detection measure. Although the natural gamma cannot be used in a MWD context, its MI value () has been computed to show that in the absence of geophysics information, the SEM can potentially detect coal just as effectively as measuring natural gamma radiation.
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But tracking the presence of coal ash in dust has been a challenge for scientists. Until now. Researchers at Duke University and the University of North Carolina Chapel Hill have developed a new forensic tracer that uses lead isotopes to detect coal fly ash in dust and other solids, including soil and sediments.
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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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