Results 231 to 240 of about 16,326,882 (286)

Significant Reduction in Ethane Emissions in the Denver‐Julesburg Basin From 2015 to 2021 From Oil and Natural Gas Operations

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 17, 16 September 2026.
Abstract Top‐down studies of methane (CH4) emissions often use the average ethane‐to‐methane (C2/C1) ratio of wellhead gas in a basin to attribute emissions to thermogenic or biogenic sources. Biogenic CH4 sources (ruminants, wetlands, landfills, and other methanogenic sources) do not co‐produce ethane (C2H6); the presence of C2H6 indicates a ...
Mercy C. Ngulat, Arthur Santos, Anna L. Hodshire, Timothy L. Vaughn, Hannah M. Daley, Russell R. Dickerson, Petter Weibring, Dirk Richter, James Walega, Alan Fried, Daniel Zimmerle   +10 more
wiley   +1 more source

Effects of mass concentration and curing age on the mechanical properties and damage evolution of aeolian sand backfill. [PDF]

Sci Rep
Zhao G, Zhang Y, Zhang G, Zhang H, Zhang X.   +4 more
europepmc   +1 more source

Editorial: Microbial solutions for restoring depleted soils. [PDF]

Front Microbiol
Mehnaz S, Shahid I, Walia A, Mumtaz MZ.
europepmc   +1 more source

Fusing LandTrendr BCI and machine learning for spoil dump mapping. [PDF]

Sci Rep
Zhen X, Yu Z, Shi Y, Zhao Y.
europepmc   +1 more source

Research on multi-scale feature detection of open-pit mine road cracks. [PDF]

Sci Rep
Wang L, Zhao M, Yu Z, Yang G, Wang Q, Liu G, Lei J.   +6 more
europepmc   +1 more source

Research on a belt roller fault diagnosis method based on adaptive band-time KAN. [PDF]

Sci Rep
Yang Z, Luo G, Hu G, Wang J, Zhang H, Yang F, Li L, Zhao W.   +7 more
europepmc   +1 more source

Buckling failure at an open-pit coal mine

, 1996
A very complex failure took place at an open-pit coal mine in the eastern Turkey. The floor of the open-pit heaved up as a result of the buckling failure of the coal seam and a combined form of shear and sliding failure of slope benches occurcd. The investigations showed that a weak clay band within the coal seam was the main cause of the failure.
Aydan, O., Ulusay, R., Kumsar, H., Ersen, A.   +3 more
openaire   +3 more sources

An integrated model of an open-pit coal mine: improving energy efficiency decisions

International Journal of Production Research, 2016
This article contributes an original integrated model of an open-pit coal mine for supporting energy-efficient decisions. Mixed integer linear programming is used to formulate a general integrated model of the operational energy consumption of four ...
Erhan Kozan
exaly   +2 more sources

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Quantifying the coal mining impact on the ecological environment of Gobi open-pit mines

Science of The Total Environment, 2023
Xinjiang is a coal-rich region with many bare rocky and gravelly areas with a delicate and fragile ecology. What is the ecological impact of mining activities? In this study, the Salinity Index (SI-T), New Gravel Land Index (NGLI), and Land Deterioration Index (LD) were used to establish an improved remote sensing ecological index (IRSEI) for the ...
Ying, Liu, Wenjing, Heng, Hui, Yue
openaire   +2 more sources