Results 21 to 30 of about 9,578 (228)

16S rDNA Sequencing-Based Insights into the Bacterial Community Structure and Function in Co-Existing Soil and Coal Gangue

open access: yesMicroorganisms, 2023
Coal gangue is a solid waste emitted during coal production. Coal gangue is deployed adjacent to mining land and has characteristics similar to those of the soils of these areas.
Mengying Ruan   +4 more
doaj   +1 more source

Research on multi-manipulator coal and gangue sorting robot system based on machine visio

open access: yesGong-kuang zidonghua, 2019
Existing coal and gangue sorting methods mainly use image processing and pattern recognition technology to identify and sort coal and gangue according to texture characteristic values of coal and rock.
WANG Peng   +4 more
doaj   +1 more source

Experimental study on microwave propagation characteristics of different coal-gangue mixtures

open access: yesMeitan kexue jishu, 2023
The problem of coal-gangue identification is one of the technical problems that have not been effectively solved for a long time in the coal industry. By analyzing the characteristics and limitations of existing coal-gangue identification methods, the ...
Lei SI   +5 more
doaj   +1 more source

Occurrence and risk assessment of polycyclic aromatic hydrocarbons in soil from the Tiefa coal mine district, Liaoning, China. [PDF]

open access: yes, 2012
       In order to evaluate soil-associated polycyclic aromatic hydrocarbons (PAHs) pollution from coal mine activities in Tiefa coal mine, Northeast China, 16 PAHs identified as priority pollutants by US Environmental ...
G.J. Liu   +4 more
core   +1 more source

Image feature extraction and recognition model construction of coal and gangue based on image processing technology

open access: yesScientific Reports, 2022
Using image recognition technology to realize coal gangue recognition is one of the development directions of intelligent fully mechanized caving mining.
Lei Zhang   +4 more
doaj   +1 more source

Performance Analysis of Coal Gangue Recognition Based on Hierarchical Filtering and Coupled Wrapper Feature Selection Method

open access: yesIEEE Access, 2023
Coal gangue recognition of top coal caving is one of the important links in the process of intelligent coal mine construction. However, the recognition accuracy of this technology in practical application is still challenging, because the recognition ...
He Li   +3 more
doaj   +1 more source

Research into the process of preparation of Ukrainian coal by the oil aggregation method [PDF]

open access: yes, 2017
We conducted a study into concentration of Donetsk coal with varying degrees of coalification – anthracite and grade G – by the method of oil aggregation. We determined the character of impact of the following factors on the results of oil aggregation of
Biletskyi, V. S.   +8 more
core   +2 more sources

Calibrated X-ray micro-tomography for mineral ore quantification [PDF]

open access: yes, 2017
Scanning Electron Microscopy (SEM) based assessments are the most widely used and trusted imaging technique for mineral ore quantification. X-ray micro tomography (XMT) is a more recent addition to the mineralogy toolbox, but with the potential to extend
Dodds, Chris   +5 more
core   +4 more sources

Design of separation system of coal and gangue

open access: yesGong-kuang zidonghua, 2018
In view of problems of high cost, high consumption of natural resources and serious environmental pollution existed in common coal preparation methods and X-ray coal preparation method was easy to occur identification errors for different thickness of ...
YANG Huigang   +4 more
doaj   +1 more source

Research on Basic Mechanical Properties and Fracture Damage of Coal Gangue Concrete Subjected to Freeze-Thaw Cycles

open access: yesAdvances in Materials Science and Engineering, 2021
In order to study the freeze-thaw damage law of the basic mechanical properties and fracture performance of coal gangue concrete, four kinds of coal gangue concrete specimens with different replacement rates of coal gangue coarse aggregate were designed,
Min Huang, Jingmin Duan, Jiakai Wang
doaj   +1 more source

Home - About - Disclaimer - Privacy