Results 171 to 180 of about 63,148 (319)

Multi-task multi-constraint differential evolution with elite-guided knowledge transfer for coal mine integrated energy system dispatching [PDF]

open access: yesarXiv
The dispatch optimization of coal mine integrated energy system is challenging due to high dimensionality, strong coupling constraints, and multiobjective. Existing constrained multiobjective evolutionary algorithms struggle with locating multiple small and irregular feasible regions, making them inaplicable to this problem.
arxiv  

Co‐combustion of coal and biomass waste in pilot‐scale for energy use

open access: yesEnvironmental Progress &Sustainable Energy, EarlyView.
Abstract The use of biomass in co‐combustion systems using fluidized bed technology is considered a viable alternative to reduce the emission of pollutants. The herein study presents an experimental analysis to determine the technical feasibility of using run‐of‐mine (ROM) coal and its waste combined with biomass in a combustor of bubbling fluidized ...
Pedro Rodrigo Silva Moura   +6 more
wiley   +1 more source

A Comparative Study with Traditional and Transfer Learning-enhanced Machine Learning Algorithms for Geotechnical Characterisation of Coal Spoil [PDF]

open access: yesarXiv
The characterisation of materials is a prerequisite for evaluating and predicting the stability of mining waste dumps. Over the past three decades, the BHP Mitsubishi Alliance Coal framework has been a cornerstone in Australian coal mines for characterising waste dump materials.
arxiv  

Mechanical Mechanism of Surrounding Rock Failure and Stability Control for Gob‐Side Entry Driving Near an Advancing Working Face

open access: yesEnergy Science &Engineering, EarlyView.
Taking the 5104 return airway of Checun Coal Mine as an example, this study visually summarises the main findings and methodologies of the research on surrounding rock control in gob‐side entry driving near an advancing working face. By establishing theoretical and numerical simulation analysis models, the stress distribution and plastic zone evolution
Delong Cui   +6 more
wiley   +1 more source

Mechanical Behavior and Response Characteristics of Overlying Strata in Remining Longwall Top‐Coal Caving Working Face

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT In the remining working face of thick coal seams, the instability of coal pillars near abandoned roadways can lead to advance fractures in the main roof, posing a significant threat to production safety. This study classifies roof collapse characteristics into four types and analyses the pillar instability mechanism using the Bieniawski ...
Defu Zhu   +3 more
wiley   +1 more source

Groundwater and stability in deep mining

open access: yes
Deep Underground Science and Engineering, EarlyView.
Wanghua Sui, Jianguo Wang
wiley   +1 more source

Effect of Low‐Temperature Torrefaction Pretreatment on the Energy–Mass Co‐Benefit of Corn Straws

open access: yesEnergy Science &Engineering, EarlyView.
The quality regulation of corn straws. ABSTRACT To explore the effects of low‐temperature torrefaction on physicochemical properties and energy–mass co‐benefit of corn straws, the products obtained after torrefaction at different low temperatures were studied.
Yantao Yang   +4 more
wiley   +1 more source

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