Results 71 to 80 of about 7,497,690 (312)

THE INFLUENCE OF GEOLOGY AND ORE DEPOSIT OCCURRENCE CONDITIONS ON DILUTION INDICATORS OF EXTRACTED RESERVES

open access: yesRudarsko-geološko-naftni Zbornik, 2019
The development of iron-ore deposits is accompanied by the excavation formation of considerable dimensions in the underground space and to ensure high technical and economic indicators of extraction, especially when developing high-grade iron ore, it is ...
Mykhailo Petlovanyi   +4 more
doaj   +1 more source

When the River Runs Low: Heterogeneous Impacts of Transportation Disruptions on Local Grain Basis

open access: yesAgribusiness, EarlyView.
ABSTRACT A substantial share of U.S. soybean and corn exports from the Midwest moves by barge along the Mississippi River system to export terminals in the Louisiana Gulf. Transportation costs between Midwestern grain elevators and export terminals create a wedge between prices at these locations, and shocks to these costs are partially passed on to ...
Yuan Zhang   +3 more
wiley   +1 more source

Geological fault identification and depth estimation based on unsupervised machine learning

open access: yesDianzi Jishu Yingyong
To address the uncertainty of Werner deconvolution results in geological structure depth estimation, the K-means clustering algorithm in unsupervised machine learning was applied for optimized analysis of Werner solutions.
Liu Shunqiang
doaj   +1 more source

Developing slurries for carbon capture: From synthetic gas mixtures to flue gas

open access: yesAIChE Journal, EarlyView.
Abstract Deep eutectic solvent (DES)‐based systems have recently emerged as promising alternatives to conventional liquid sorbents for CO2 capture due to their tunable properties and potential for enhanced mass transfer. In this work, two DES‐based slurry systems previously developed for CO2 capture, one aqueous and one non‐aqueous, were further ...
Sahar Foorginezhad   +3 more
wiley   +1 more source

Integrated Fractal and Curvature Analysis for Quantitative Assessment of Structural Complexity in the Yushupo Coal Mine, Ningwu Coalfield

open access: yesFractal and Fractional
The Yushupo Coal Mine in the Ningwu Coalfield is characterized by well-developed faults and pronounced folds, making it a representative site for testing a comprehensive structural evaluation model.
Fengjuan Lan, Ming Li, Zhihai Jiang
doaj   +1 more source

Crop insurance and irrigation behavior: The conditional role of pumping costs

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Excessive water use for irrigation can accelerate the depletion of water resources, undermining agriculture's resilience to weather‐related shocks. Understanding how farmers make water use decisions is essential for developing effective water management policies.
Sungmin Cheu, Molly Sears
wiley   +1 more source

High‐elevation endemic plants predicted to lose habitat from changing climate in Washington State

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise High‐elevation plants face unique challenges from potential climate change impacts that will likely require upslope migration into increasingly smaller suitable habitat. This situation is particularly acute for endemic species that by definition occupy small geographic ranges.
Nicholas L. Gjording   +4 more
wiley   +1 more source

Evaluation of engineering geological structure and geological conditions in Southern Jiangsu

open access: yesShuiwen dizhi gongcheng dizhi
To standardize the classification of engineering geological layers in Southern Jiangsu, improve the sharing efficiency of regional geological data, and strengthen the systematic understanding of regional geological conditions for engineering practice ...
Jingjing QU   +4 more
doaj   +1 more source

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