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 ...
WhatsApp: +86 18838072829The coal mine wind shaft is an important ventilation channel in coal mines, and it is of great significance to ensure its longterm safety. At present, the inspection of wind shafts still depends on manual work, which has low reliability and high risk. There are two main problems in the shaft wall detection of ventilation shafts: (1) The humidity and dust concentration in ventilation shafts ...
WhatsApp: +86 18838072829October 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 ...
WhatsApp: +86 18838072829soil or by eating meat or other food that you grilled. Grilling and charring food actually increases the amount of PAHs in the food. You could be exposed to pyrene by eating smoked fish or meats. It has also been found in surface water and drinking water. Pyrene has been detected in coal tar so if you work at a business that makes or uses coal tar
WhatsApp: +86 18838072829This 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.
WhatsApp: +86 18838072829Sensors and monitoring systems for mining applications. Sensorbased detection and monitoring solutions for the mining industry include: Level measurement sensors and vibrating wire sensors to monitor underground mine stability. Magnetic susceptibility meters and spectrometers for detecting wear and tear in mining machinery.
WhatsApp: +86 18838072829Mineral 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 ...
WhatsApp: +86 18838072829Toxic 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 ...
WhatsApp: +86 18838072829Borehole 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.
WhatsApp: +86 18838072829The geological transparency of working face is the premise and guarantee to realize the intelligent and accurate mining for coal large number of gas drainage holes, water exploration holes and other boreholes are constructed before and during coal mining. In this paper, the borehole radar (BHR) is used to detect the coal bedding interface in boreholes along the coal seam.
WhatsApp: +86 18838072829Large foreign object transporting by coal mine conveyor belt may lead to production safety hazards. To reduce safety accidents during coal mining, a large foreign object detection method based on machine vision is proposed in this paper. An adaptive weighted multiscale Retinex (MSR) image enhancement algorithm is proposed to improve the captured image quality of the belt conveyor line. An ...
WhatsApp: +86 18838072829The 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 ...
WhatsApp: +86 18838072829The term "fugitive dust", as used in this document, refers to particulate matter that enters the atmosphere without first ... Equipment and truck use, soil disturbances, site and equipment maintenance, and track out ... Storage and transfer of coal and fly ash Fugitive dust management is beneficial for the environment, business, and
WhatsApp: +86 18838072829Subtle 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 ...
WhatsApp: +86 18838072829In the search for new sources of oil and natural gas, energy companies are guided by evidence gleaned from huge arrays of data gathered by sending sound waves deep into the ground. At MIT's Computer Science and Artificial Intelligence Laboratory (CSAIL), experts in machine learning and computer vision are developing mathematical tools that ...
WhatsApp: +86 18838072829Vast domains including Machine Learning and Deep learning are core part of AI (Patel et al., 2020a, Patel et al., 2020b; ... Soil moisture sensors use one of the several technologies used to measure the soil moisture content. ... UAVs could be used in order to detect abnormalities and identify potential problems. Psirofonia et al. (2017) 3.
WhatsApp: +86 18838072829Device uses highfrequency electromagnetic waves to detect turned soil. Groundpenetrating radar was used on the grounds at the former Kamloops Indian Residential School and indicated that the ...
WhatsApp: +86 18838072829Duke University scientists have developed tests sensitive enough to detect and measure microscopic particles of coal ash in soil, even at concentrations so low and sizes so small that other tests ...
WhatsApp: +86 18838072829Seasonal detection of coal overburden dump regions in unsupervised manner using landsat 8 OLI/TIRS images at jharia coal fields. ... Wang et al. [88] classified land use (, as residential ...
WhatsApp: +86 18838072829Strain Gauges Strain gauges are used to measure the stress and strain on various structures, such as the roof and walls of a coal mine. These sensors can detect small changes in the structure's deformation, which can indicate potential caveins or collapses.
WhatsApp: +86 18838072829Online and AtLine elemental analyzers are used to measure the composition of coal in realtime and proactively address process variations to ensure more consistent coal blends. The analyzer mounts around an existing conveyor belt or adjacent to a main conveyor with an inline coal sampling unit to continuously monitor coal quality.
WhatsApp: +86 18838072829The 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 ...
WhatsApp: +86 18838072829[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 ...
WhatsApp: +86 18838072829The Global Carbon Project updates its dataset annually with data on global and national CO 2 emissions, extending back to the year 1750.. We present our data for three key metrics: 'Fossil CO 2 emissions', which includes all emissions from the consumption of fossil fuels (from coal, oil, gas and flaring) plus direct industrial emissions from cement. It does not include emissions from land ...
WhatsApp: +86 18838072829Based on this, taking the Beijing area as the research object, the deep learning regression network (DNNR) with big data fitting capability was proposed to construct a soil moisture prediction model. By integrating the dataset, analyzing the time series of the predictive variables, and clarifying the relationship between features and predictive ...
WhatsApp: +86 18838072829July 22, 2021 Source: Duke University Summary: Scientists have developed tests sensitive enough to detect and measure microscopic particles of coal ash in soil, even at concentrations so low...
WhatsApp: +86 18838072829