Results 51 to 60 of about 4,130 (213)
Extraction of Coal and Gangue Geometric Features with Multifractal Detrending Fluctuation Analysis
Applied 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
steel research international, EarlyView.This study investigates the reduction of pure iron oxides and industrial iron ore using hydrogen gas as a reducing agent. Additionally, to determine whether the reduction process can be accelerated, electromagnetic fields of 50 Hz and 25 kHz were applied.
Mykyta Levchenko +5 more
wiley +1 more source
Gong-kuang zidonghua, 2014 An automatic identification system of coal and gangue for fullly-mechanized coal caving working face based on vibration signal was proposed, structure and working principle of the system were introduced and design schemes of software and hardware of coal
ZHANG Liang +3 more
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Barriers to Steel Decarbonization
steel research international, EarlyView.Main identified barriers to steel decarbonization Carbon dioxide (CO2) emissions are a leading contributor to global climate change, necessitating urgent mitigation strategies. While various metrics—such as total national emissions, per‐capita output, and historical contributions—define responsibility, determining accountability remains complex ...
Pasquale Cavaliere
wiley +1 more source
Experimental study on performance of fly ash and coal gangue mixed slurry
, 2023 In order to explore the properties of the mixed slurry of fly ash and gangue, fly ash and gangue of different particle sizes were used as the test materials, the orthogonal experimental method was adopted, and the test data were processed by SPSS ...
LI Linzhe +5 more
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Technology and engineering test of filling goaf with coal gangue slurry
Scientific Reports, 2023 Based on the greening and low interference disposal requirements of coal gangue in high-yield and high-efficiency mines in Inner Mongolia and Shaanxi, and by integrating the existing theories and technologies such as underground filling technology of ...
Shengrong Xie +7 more
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The Chemical Record, EarlyView.Geopolymers are presented as a chemically programmable platform whose properties emerge from activation chemistry, nanoscale disorder, and interfacial design. The review highlights sustainability challenges, the shift toward nanoengineered and hybrid systems, and the rise of halloysite‐based architectures enabling tunable structures across scales for ...
Martina Maria Calvino +4 more
wiley +1 more source
Research progress on in-situ intelligent sorting and filling technology of coal gangue underground [PDF]
Coal gangue needs to be transported to the ground for further treatment in traditional underground mines, which not only occupies land spaces, but also causes atmospheric and environmental pollutions due to spontaneous combustion and rainwater leaching ...
Fengqi GUO +4 more
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BiologyCoal gangue, a primary byproduct of coal mining, causes significant environmental harm due to its improper utilization. This research proposes integrating microalgae with coal gangue-derived ecological products to improve soil conditions in ecologically ...
Shuyu Yu +6 more
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A Study of Multispectral Technology and Two-Dimension Autoencoder for Coal and Gangue Recognition
IEEE Access, 2020 Coal is one of the main sources of human energy. In the process of coal mining, separating gangue from coal has great significance for environmental protection and energy conservation.
Wenhao Lai +4 more
doaj +1 more source