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View article: Research on Carbon Emission Accounting Methodology for Surface Engineering of Chemical Flooding in Oilfields
Research on Carbon Emission Accounting Methodology for Surface Engineering of Chemical Flooding in Oilfields Open
Chemical flooding is a key enhanced oil recovery (EOR) technique for tertiary oil recovery in mature oilfields. To achieve carbon emission reduction in chemical flooding surface operations, a comprehensive carbon emission accounting framew…
View article: Model‐Free Fast Integral Terminal Sliding Mode Control Based on Extended Super‐Twisting Sliding Mode Disturbance Observer for PMSM With Unknown Disturbances
Model‐Free Fast Integral Terminal Sliding Mode Control Based on Extended Super‐Twisting Sliding Mode Disturbance Observer for PMSM With Unknown Disturbances Open
The control performance of a permanent magnet synchronous motor (PMSM) is significantly deteriorated when faced with unknown disturbances, such as model uncertainties, parameter variations, and external interferences. This paper proposes a…
View article: Adaptive Cycle Engine Acceleration Controller Based on Deep Reinforcement Learning
Adaptive Cycle Engine Acceleration Controller Based on Deep Reinforcement Learning Open
The adaptive cycle engine can adapt to the requirements of aircraft subsonic flight and supersonic flight, and its acceleration process shows strong nonlinearity. The deep reinforcement learning method has strong adaptive learning ability …
View article: An Improved Aero Engine Model Prediction Controller Based on Deep Reinforcement Learning
An Improved Aero Engine Model Prediction Controller Based on Deep Reinforcement Learning Open
Operating under harsh and complex environments, the high performance requirement of aircraft engines ask for stable and efficient controllers. Model predictive control (MPC) is a potential and recently emerging technique for aero-engine co…
View article: A comprehensive analysis of coal toughness index: Relationships among coal toughness index, uniaxial compressive strength and proximity parameters
A comprehensive analysis of coal toughness index: Relationships among coal toughness index, uniaxial compressive strength and proximity parameters Open
View article: Study of methane and carbon dioxide adsorption-desorption hysteresis in coals from Sydney Basin: A theoretical and experimental approach
Study of methane and carbon dioxide adsorption-desorption hysteresis in coals from Sydney Basin: A theoretical and experimental approach Open
Methane (CH4) and carbon dioxide (CO2) are primary components of coal seam gas (CSG). Understanding their adsorption-desorption hysteresis characteristics, along with the fundamental mechanism, is crucial for CSG exploitation and related h…
View article: Moisture penetration and distribution characterization of hard coal: a µ-CT study
Moisture penetration and distribution characterization of hard coal: a µ-CT study Open
Moisture content of rock/coal can change its mechanical properties and absorption capacities, which can directly affect gas diffusivity, change the stress distribution and hence cause significant impacts on the overall gas or coal extracti…
View article: Dispersion and migration characteristics of multisource respirable dust in development panels during tunnelling processes
Dispersion and migration characteristics of multisource respirable dust in development panels during tunnelling processes Open
Underground miners in Australia are facing continued threats from dust-related diseases. To address these issues, improved knowledge of airflow migration patterns and respirable dust dispersion characteristics within a continuous-miner-dri…
View article: Fragmentation energy calculation model of coal crushed by impact load
Fragmentation energy calculation model of coal crushed by impact load Open
Rock fragmentation is a common physical and mechanical phenomenon that exists in a variety of ranges from the mining and processing. Communication is an important operation in coal processing whereby the coal block coming from coalmines is…
View article: Development and evaluation of an immersive VR-CFD-Based tool for dust exposure mitigation in underground tunnelling operations
Development and evaluation of an immersive VR-CFD-Based tool for dust exposure mitigation in underground tunnelling operations Open
Long-term exposure to respirable coal and silica dust during underground tunnelling operations has gained increasing attention in recent years. The solution to effective mitigation of dust exposure depends not only on higher-order engineer…
View article: In-situ gas contents of a multi-section coal seam in Sydney basin for coal and gas outburst management
In-situ gas contents of a multi-section coal seam in Sydney basin for coal and gas outburst management Open
The gas content is crucial for evaluating coal and gas outburst potential in underground coal mining. This study focuses on investigating the in-situ coal seam gas content and gas sorption capacity in a representative coal seam with multip…
View article: Insight into proactive inertisation strategies for spontaneous combustion management during longwall mining of coal seams with various orientations
Insight into proactive inertisation strategies for spontaneous combustion management during longwall mining of coal seams with various orientations Open
Spontaneous combustion of coal occurs in the longwall (LW) goaf during mining cycles due to coal oxidation at low temperatures and air ingress. Coal seam orientations, dictated by the elevations of maingate (MG) and tailgate (TG) and the h…
View article: Multi-scale pore fractal characteristics of differently ranked coal and its impact on gas adsorption
Multi-scale pore fractal characteristics of differently ranked coal and its impact on gas adsorption Open
Well-developed pores and cracks in coal reservoirs are the main venues for gas storage and migration. To investigate the multi-scale pore fractal characteristics, six coal samples of different rankings were studied using high-pressure merc…
View article: Production of chemicals and fuels from biomass
Production of chemicals and fuels from biomass Open
Described are methods, reactor systems, and catalysts for converting biomass to fuels and chemicals in a batch and/or continuous process. The process generally involves the conversion of water insoluble components of biomass, such as hemic…
View article: Improved Computational Fluid Dynamics Modelling of Coal Spontaneous Combustioncontrol and Gas Management
Improved Computational Fluid Dynamics Modelling of Coal Spontaneous Combustioncontrol and Gas Management Open
View article: Research on Migration Law of Mn in MudstoneFloor in the Goaf under Coupling Conditionsof Seepage and Stress
Research on Migration Law of Mn in MudstoneFloor in the Goaf under Coupling Conditionsof Seepage and Stress Open
In recent years, as one of the green coal mining technologies, coal gangue filling and coal mining technology has been widely used.The coal gangue filling body in goaf may be in an acidic or alkaline mine water environment for a long time,…
View article: The Influences of Key Strata Compound Breakage on the Overlying Strata Movement and Strata Pressure Behavior in Fully Mechanized Caving Mining of Shallow and Extremely Thick Seams: A Case Study
The Influences of Key Strata Compound Breakage on the Overlying Strata Movement and Strata Pressure Behavior in Fully Mechanized Caving Mining of Shallow and Extremely Thick Seams: A Case Study Open
In order to analyze the impact of compound breakage of key strata on overlying strata movement and strata pressure behavior during the fully mechanized caving mining in shallow and extremely thick seams, this paper took the 1322 fully mech…
View article: Particle-Crushing Characteristics and Acoustic-Emission Patterns of Crushing Gangue Backfilling Material under Cyclic Loading
Particle-Crushing Characteristics and Acoustic-Emission Patterns of Crushing Gangue Backfilling Material under Cyclic Loading Open
In solid backfilling coal mining (SBCM), the crushed gangue backfilling material (CGBM) is generally compacted circularly by a compaction machine in order to reduce its compressibility. In this cyclic compaction process, the particles are …
View article: Effects of Water Soaked Height on the Deformation and Crushing Characteristics of Loose Gangue Backfill Material in Solid Backfill Coal Mining
Effects of Water Soaked Height on the Deformation and Crushing Characteristics of Loose Gangue Backfill Material in Solid Backfill Coal Mining Open
In solid backfill coal mining (SBCM), loose gangue backfill material (LGBM) is used to backfill the goaf after coal resources are exploited from the underground mines. Under certain geological conditions, LGBM with a certain height may be …