Results 41 to 50 of about 1,583 (195)

Coal-gangue image recognition in fully-mechanized caving face based on random forest

open access: yesGong-kuang zidonghua, 2020
Aiming at problems of high difficulty in parameter adjustment, low prediction accuracy and easy over-fitting in present coal-gangue image recognition methods in fully-mechanized caving face, a coal-gangue image recognition method in fully mechanized ...
XUE Guanghui   +3 more
doaj   +1 more source

Fast recognition using convolutional neural network for the coal particle density range based on images captured under multiple light sources

open access: yesInternational Journal of Mining Science and Technology, 2021
A method based on multiple images captured under different light sources at different incident angles was developed to recognize the coal density range in this study.
Feiyan Bai   +3 more
doaj   +1 more source

PCViT: A Pre-Convolutional ViT Coal Gangue Identification Method

open access: yesEnergies, 2022
For the study of coal and gangue identification using near-infrared reflection spectroscopy, samples of anthracite coal and gangue with similar appearances were collected, and different dust concentrations (200 ug/m3, 500 ug/m3 and 800 ug/m3), detection ...
Jianjian Yang   +4 more
doaj   +1 more source

Design of photometric separation system for coal and gangue

open access: yesGong-kuang zidonghua, 2013
In view of requirements of underground separation and backfilling and utilization for coal and gangue, the paper proposed a design scheme of photometric separation system for coal and gangue based on laser 3D scanning and dynamic weighing.
WANG Wei-dong   +7 more
doaj   +1 more source

Vibration Test of Single Coal Gangue Particle Directly Impacting the Metal Plate and the Study of Coal Gangue Recognition Based on Vibration Signal and Stacking Integration

open access: yesIEEE Access, 2019
In order to realize the recognition of coal gangue in the top coal caving process, a scheme of the coal gangue recognition based on the collision vibration signal between coal gangue and the metal plate is proposed in this paper, a systematic and ...
Yang Yang   +3 more
doaj   +1 more source

Recovering the lost gold of the developing world : bibliographic database [PDF]

open access: yes, 1999
This report contains a library of 181 references, including abstracts, prepared for Project R 7120 "Recovering the lost gold of the developing world" funded by the UK' s Department for International Development (DFID) under the Knowledge and Research (
Evans, E.J., Mitchell, C.J.
core  

Study of reduction behavior of iron ore lumps by coal [PDF]

open access: yes, 2014
Studies on the reduction behavior of hematite iron ore (OMC Ltd.) lumps with coal at different temperatures with varying time were undertaken to understand the effect of time and temperature on degree of reduction.
Kabijeet, K, Kumar, A
core  

Novel and Emerging Strategies for Sustainable Mine Tailings and Acid Mine Drainage Management [PDF]

open access: yes, 2022
Renewable energy and clean storage technologies are at the forefront of the world’s fight against climate change, including the UN-led move towards a carbon-neutral society.

core   +1 more source

Design and development of a machine vision system using artificial neural network-based algorithm for automated coal characterization [PDF]

open access: yes, 2020
Coal is heterogeneous in nature, and thus the characterization of coal is essential before its use for a specific purpose. Thus, the current study aims to develop a machine vision system for automated coal characterizations.
Chatterjee, Snehamoy   +4 more
core   +2 more sources

Environmental and occupational characterisation of coals and dust from coal mining [PDF]

open access: yes, 2022
Tesi en modalitat de compendi de publicacionsThe main objective of this PhD thesis is the study of coal mine dust patterns produced by different types of mining operations and different types of coal.
Trechera Ruiz, Pedro
core   +1 more source

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