Results 71 to 80 of about 16,326,882 (286)

Clathrate hydrate crystallization

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Clathrate hydrate crystallization has been an area of interest to chemical engineers from the point of view of crystal structure, thermophysical properties, phase equilibria, kinetics, industrial applications, and environmental (climate change) implications.
Peter Englezos
wiley   +1 more source

Study on tightly coupled LiDAR-Inertial SLAM for open pit coal mine environment [PDF]

open access: yes
With the rapid development of artificial intelligence and unmanned and other related disciplines, the intelligence and unmanned of coal mining equipment has become a new trend.
Baoliang MA   +3 more
core   +1 more source

Summary of water disaster characteristics and water prevention and control technology in open-pit coal mines in China

open access: yes, 2020
Opencast mining is one of the two ways of coal mining in China. Similar to the underground coal mine, the open-pit coal mine also faces the problem of water prevention and control in the process of mining.
Xuanming, HUANG   +3 more
core   +1 more source

Microwave‐assisted catalytic pyrolysis of textile wastes: Synergistic effects and product characteristics

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study examines the microwave‐assisted catalytic pyrolysis (MACP) of individual and blended textiles (cotton, polyester, nylon 6) using ZnO and a ZnO/natural zeolite catalyst. In a custom‐built microwave reactor operated at 500°C, 1 kW power, and a 15‐min residence time, textile wastes were pyrolyzed.
Peyman Alizadeh   +3 more
wiley   +1 more source

Steep seam coal mining in Western Canada by open pit mining

open access: yes, 1984
Canada produces close to 42 million tonnes of coal per annum of which soma 38 million tonnes is produced by surface mining methods. The two Western Canadian provinces, Alberta and British Columbia, produce 31 million tonnes of coal by surface mining. These two provinces provide the bulk of the metallurgical coal for export. The geological conditions in
R K Singhal, D G Osborne
openaire   +1 more source

Learning Strategies from Nature's Blueprint to Cyclic Carbonate Synthesis

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
The development of sustainable synthetic methods for cyclic carbonates draws inspiration from nature, focusing on eco‐friendly processes and renewable resources like CO2 and biomass. This review explore various CO2 activation mechanisms, green chemistry principles, and green catalysts.
Erika Saccullo   +4 more
wiley   +1 more source

Prediction of open-pit mine truck travel time based on LSTM-TabTransformer

open access: yesScientific Reports
Truck travel time prediction is the basis for real-time optimal scheduling decision of open-pit trucks. Most prediction models for open-pit truck travel time mainly rely on a single machine learning algorithm or model to optimize the hyperparameters ...
Jingchang Zhao, Lei Gao, Shihao Ren
doaj   +1 more source

A novel drilling hole sealing device based on the principle of blocking air leakage path

open access: yesMeikuang Anquan
The sealing quality of gas extraction boreholes can directly affect the extraction efficiency. In order to effectively guarantee the sealing quality of gas extraction boreholes, the possible air leakage crack and its controllability after the sealing of ...
Lidong WANG, Weiwei SU, Weiqian ZHANG
doaj   +1 more source

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

open access: yesDeep Underground Science and Engineering, EarlyView.
Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu   +4 more
wiley   +1 more source

Monitoring of ecosystem changes in open-pit coal mines based on segmentation of multi-dimensional hypervolume

open access: yesMeitan kexue jishu
Open-pit coal mining and ecological restoration jointly drive significant changes in the mine ecosystem. In the new era, monitoring and evaluation of mine land reclamation and ecological restoration consider ecosystem degradation and recovery as ...
Yongjun YANG   +5 more
doaj   +1 more source

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