Results 71 to 80 of about 309,554 (217)
Traditional coal-gangue recognition methods usually do not consider the impact of equipment noise, which severely limits its adaptability and recognition accuracy.
ZhiJiang Liu +6 more
core +1 more source
Coal-Gangue Interface Detection Based on Ensemble Empirical Mode Decomposition Energy Entropy
To realize the unmanned automation of the full mechanized caving, the bottleneck problem of coal-gangue interface detection in top coal caving must be solved first. Targeting coal-gangue interface detection on fully mechanized mining face, an alternative
Wei Liu +5 more
doaj +1 more source
ABSTRACT Coal mining severely degrades soil profiles and ecosystem functions, highlighting the need for effective reclamation. Reconstructing soil profiles with industrial solid wastes offers a promising waste‐to‐resource approach, but the ecological effects of different engineered key‐layer materials remain unclear.
Yi‐Jie Quan +13 more
wiley +1 more source
Coal gangue is a major industrial solid waste generated from coal mining and processing, and amorphous silica removal is the key to its high-value utilization.
Jingnan Hong +3 more
doaj +1 more source
Coal and Gangue Active Identification Method Using Microwave Irradiation-Infrared Detection
In the process of the longwall top coal caving method, automatic distinction between coal and gangue at the working face is one of the most critical factors for the success of the operation. An active coal and gangue identification method using microwave
Huamin Li, Hani S. Mitri, Chuang Liu
core +1 more source
ABSTRACT Vanadium‐bearing solid wastes (VBSWs) have emerged as a key research priority in resource recovery and environmental remediation because of their high resource value, large generation volume, and complex phase composition. However, practical utilization of these wastes still faces major challenges, including heavy environmental burdens, ill ...
Bowen Duan +7 more
wiley +1 more source
Study on Preparation of Coal Gangue-Based Geopolymer Concrete and Mechanical Properties
Alkaline dry powder activator, coal gangue, fly ash, and other raw materials are utilized to prepare coal gangue-based geopolymer concrete. The procedures of making the coal gangue-based geopolymer concrete are illustrated firstly. Also, basic mechanical
Tiantian Liu, Fangjin Sun, Daming Zhang
core +1 more source
Barriers to Steel Decarbonization
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
Coal gangue recognition method based on water heat transfer and infrared thermal imaging
The coal gangue recognition method based on visible light images has low accuracy and slow recognition speed. The coal gangue recognition method based on high-energy ray transmission has significant radiation, resulting in limited application.
CHENG Gang +4 more
doaj +1 more source
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

