Results 41 to 50 of about 1,612 (205)

Extraction of Coal and Gangue Geometric Features with Multifractal Detrending Fluctuation Analysis

open access: yesApplied Sciences, 2018
The separation of coal and gangue is an important process of the coal preparation technology. The conventional way of manual selection and separation of gangue from the raw coal can be replaced by computer vision technology.
Kai Liu, Xi Zhang, YangQuan Chen
doaj   +1 more source

Mining Safety and Sustainability I [PDF]

open access: yes, 2022
Safety and sustainability are becoming ever bigger challenges for the mining industry with the increasing depth of mining. It is of great significance to reduce the disaster risk of mining accidents, enhance the safety of mining operations, and improve ...

core   +1 more source

Discrete X-ray tomographic reconstruction for fast mineral liberation spectrum retrieval [PDF]

open access: yes, 2015
In minerals beneficiation, the mineral liberation spectrum of the plant feed conveys valuable information for adjusting operations, provided it is available in minutes from particulate sampling.
Piller, Marzio   +2 more
core   +1 more source

Forward simulation of electromagnetic waves in coal gangue model based on improved bidirectional peak-valley search algorithm

open access: yesGong-kuang zidonghua, 2023
Realizing automatic recognition of coal gangue content during the top coal caving process is an important goal of fully mechanized mining automation. The existing methods for automatic recognition of coal gangue content have problems such as low accuracy
SHI Xiangyu   +4 more
doaj   +1 more source

Plate tectonic aspects of the Triassic carbonate-hosted stratiform-stratabound base-metal deposits in the Western Balkan, NW Bulgaria [PDF]

open access: yes, 2016
The Triassic carbonate-hosted stratiform-stratabound base-metal deposits in the Western Balkan, NW Bulgaria, have well defined regional geological and tectonic settings, style ofmineralisation, mineralogical, geochemical and isotopic data. Their genesis,
Irina Marinova, Zhelyazko Damyanov
core   +2 more sources

Green Low-Carbon Technology for Metalliferous Minerals [PDF]

open access: yes, 2022
Metalliferous minerals play a central role in the global economy. They will continue to provide the raw materials we need for industrial processes.

core   +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

A Feature Extraction Method Using Auditory Nerve Response for Collapsing Coal-Gangue Recognition [PDF]

open access: yesApplied Sciences, 2020
To intelligentize the top-coal caving’s process, many data-driven coal-gangue recognition techniques have been proposed recently. However, practical applications of these techniques are hindered by coal mine underground’s high background noise and complex environment.
Huadong Pang   +7 more
openaire   +2 more sources

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