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A new method for estimating total organic carbon content from well logs
AAPG Bulletin, 2016With the booming exploration and development of unconventional hydrocarbon resources in source rocks, the estimation of total organic carbon (TOC) content from well logs has become increasingly important because of the significance of TOC in the formation evaluation of those resources.
Peiqiang Zhao +3 more
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Communications in Soil Science and Plant Analysis, 2001
ABSTRACT Dry combustion analysis of carbon (C) and nitrogen (N) in materials of biological or mineral origin is safer and less labor-intensive than traditional acid digestion methods, and can give better recoveries of both elements. Dry combustion macro-analyzers have recently been developed, which allow a sample size of up to several grams to be ...
Alan F. Wright, John S. Bailey
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ABSTRACT Dry combustion analysis of carbon (C) and nitrogen (N) in materials of biological or mineral origin is safer and less labor-intensive than traditional acid digestion methods, and can give better recoveries of both elements. Dry combustion macro-analyzers have recently been developed, which allow a sample size of up to several grams to be ...
Alan F. Wright, John S. Bailey
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2023
Green roofs are a useful tool to retain heat, limit the heat island effect and improve the sustainability of cities, but their effectiveness of nutrient retention is still up for debate. This is due to the fact that their ability to retain nutrients is highly dependent on growing media, plant type, climate, and rainfall amount and intensity. This study
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Green roofs are a useful tool to retain heat, limit the heat island effect and improve the sustainability of cities, but their effectiveness of nutrient retention is still up for debate. This is due to the fact that their ability to retain nutrients is highly dependent on growing media, plant type, climate, and rainfall amount and intensity. This study
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Spectroscopic Determination of Soil Organic Carbon and Total Nitrogen Content in Pasture Soils
Communications in Soil Science and Plant Analysis, 2014To explore a convenient and efficient approach for determining the content of soil organic carbon (SOC) and total nitrogen (TN), this study focused on capturing the features value of SOC and TN by applying the method of wavelet analysis and wavelet transformation. The soil used in the study was sampled from the pastures in Fukang City of Xinjiang Uygur
Zhengguo Sun +3 more
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GEOPHYSICS, 2013
Total organic carbon (TOC) is an important parameter for characterizing shale gas and oil reservoirs. Estimation of TOC from well logs has previously been achieved by an empirical model. The radial basis function (RBF) neural network is a new quantitative method that can generate a smooth and continuous function of several input variables to ...
Maojin Tan, Qiong Liu, Songyang Zhang
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Total organic carbon (TOC) is an important parameter for characterizing shale gas and oil reservoirs. Estimation of TOC from well logs has previously been achieved by an empirical model. The radial basis function (RBF) neural network is a new quantitative method that can generate a smooth and continuous function of several input variables to ...
Maojin Tan, Qiong Liu, Songyang Zhang
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Variation of total organic carbon content along the stream Harsit, Eastern Black Sea Basin, Turkey
Environmental Monitoring and Assessment, 2011The TOC in surface waters and wastewater is an important analytical parameter describing the total content of all organic substances containing carbon. In practice, the TOC originated from natural and anthropogenic sources, and even if it is not directly responsible for dangers on human health, its determination is important for any kind of water that ...
AKINCI, GÖRKEM +3 more
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Journal of Environmental Management
Saltmarshes are considered to be one of the planet's most efficient carbon sinks. The continued loss of saltmarshes and induced ecological consequences promoted their restoration worldwide. Previous efforts aimed to evaluate the success of restoration in terms of organic carbon accumulation, but inorganic carbon and carbon contents within soil ...
Ziwen, Ma +6 more
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Saltmarshes are considered to be one of the planet's most efficient carbon sinks. The continued loss of saltmarshes and induced ecological consequences promoted their restoration worldwide. Previous efforts aimed to evaluate the success of restoration in terms of organic carbon accumulation, but inorganic carbon and carbon contents within soil ...
Ziwen, Ma +6 more
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Journal of Colloid and Interface Science, 2010
This experimental investigation measured the zeta potential of the clay mineral, montmorillonite, which was modified with six different quaternary ammonium cations. The organic cations were chosen to quantify the effect of cation functional groups, including chain length and cation size, on the resulting zeta potential; each of the six cations were ...
B, Bate, S E, Burns
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This experimental investigation measured the zeta potential of the clay mineral, montmorillonite, which was modified with six different quaternary ammonium cations. The organic cations were chosen to quantify the effect of cation functional groups, including chain length and cation size, on the resulting zeta potential; each of the six cations were ...
B, Bate, S E, Burns
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Total organic carbon content as an early warning indicator of soil degradation
Science Bulletin, 2023Licheng, Guo +7 more
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International Journal of Environmental Analytical Chemistry, 1987
Abstract The problems encountered when analyzing organic pollutants in drinking water stem from the large number of unknown compounds at very low concentration. The concentration of the organics is carried out on n-alkyl silica, after a rigorous cleaning, or by liquid-liquid extraction.
P. Subra +3 more
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Abstract The problems encountered when analyzing organic pollutants in drinking water stem from the large number of unknown compounds at very low concentration. The concentration of the organics is carried out on n-alkyl silica, after a rigorous cleaning, or by liquid-liquid extraction.
P. Subra +3 more
openaire +1 more source