Results 171 to 180 of about 1,470,279 (358)

Aspects of rare earth element enrichment in Allegheny Plateau coals, Pennsylvania, USA

open access: green, 2021
James C. Hower   +5 more
openalex   +2 more sources

Study to determine dielectric properties of sandstone, shale, coal, and slate [PDF]

open access: yes
Triplicate dielectric constant and loss tangent measurements on samples of sandstone, shale, coal, and slate were performed. Each of the three necessary configurations of the coal material was sampled to obtain measurements, with each sample machined ...
Bassett, H. L., Sheppard, A. P.
core   +1 more source

Effect of faulting on coal burst – A numerical modelling study

open access: diamond, 2018
Lu Chen, Baotang Shen, Bongani Dlamini
openalex   +1 more source

Considerations on coal gasification [PDF]

open access: yes
Commercial processes for the gasification of coal with oxygen are discussed. The Koppers-Totzek process for the gasification of coal dust entrained in a stream of gasifying agents is described in particular detail.
Franzen, J. E.
core   +1 more source

Performance Analysis of Coal Fired Power Plants in India

open access: green, 2010
Santosh Kumar Behera   +2 more
openalex   +1 more source

Harnessing Machine Learning and Deep Learning Approaches for Laser‐Induced Breakdown Spectroscopy Data Analysis: A Comprehensive Review

open access: yesAnalysis &Sensing, EarlyView.
Laser‐induced breakdown spectroscopy (LIBS), an atomic emission technique, is widely applied in fields like geology and biology. This rapid elemental analysis method leverages computational tools to boost precision and speed up data processing. This review explores machine learning and deep learning methods for analyzing LIBS spectral data, tackling ...
Pegah Dehbozorgi   +3 more
wiley   +1 more source

Noninvasive Glucose Detection with Biodegradable Electrodes from Rice Starch Functionalized with a Carbon Quantum Dot/Nickel Oxide Nanocomposite

open access: yesAnalysis &Sensing, EarlyView.
The graphical abstract shows an eco‐friendly approach to fabricating a biodegradable electrochemical sensor. Carbon quantum dot/nickel oxide (CQD/NiO) nanocomposites are synthesized using Aloe arborescens leaf extract, which served as a natural reducing and stabilizing agent.
Nokwanda Ngema   +3 more
wiley   +1 more source

Estimating Coal Price Dynamics with the Principal Components Method [PDF]

open access: yes
The future use of coal depends on environmental protection measures and the Kyoto Protocol, the price of CO2 emission coupons, consumption, new technologies, the price of other energy sources and the liberalization of the electricity markets.
Festic, Mejra   +2 more
core  

The Impact of Organic Constituents in Coal Chemical Wastewater on Additive Adsorption at the Coal Surface: Experimental Investigation and Molecular Dynamics Simulation

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Direct preparation of coal–water slurry using coal chemical wastewater represents an economical and feasible approach for wastewater resource utilization. Unlike clean water, however, the complex organic components in wastewater may exert adverse effects on slurry properties.
Yi Xiang   +6 more
wiley   +1 more source

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