Results 31 to 40 of about 359,370 (309)

Adaptive intelligent coupling control of hydraulic support and working face system for 6−10 m super high mining in thick coal seams

open access: yesMeitan kexue jishu
The reserves and production of thick coal seams account for half of the total reserves and production of raw coal in China. By combing the history of thick coal seam mining, we summarize the technology and equipment development practice of thick coal ...
Huijun HAN   +5 more
doaj   +1 more source

An Autonomous Large Language Model‐Agent Framework for Transparent and Local Time Series Forecasting

open access: yesAdvanced Intelligent Discovery, EarlyView.
Architecture of the proposed large language model (LLM)‐based agent framework for autonomous time series forecasting in thermal power generation systems. The framework operates through a vertical pipeline initiated by natural language queries from users, which are processed by the LLM Agent Core powered by Llama.cpp and a ReAct loop with persistent ...
William Gouvêa Buratto   +5 more
wiley   +1 more source

Research on the mechanism and morphology of coal damage by water jet deflection angle

open access: yesGeomechanics and Geophysics for Geo-Energy and Geo-Resources
This study investigates coal damage mechanisms under water jet deflection angles of 0°, 30°, 45°, and 60° through theoretical analysis, numerical simulation, laboratory experiments, and field validation.
Biao Hou   +5 more
doaj   +1 more source

RECLAMATION POTENTIAL OF ROBINIA PSEUDOACACIA L. ON MINING ROCK WITHIN STEPPE ZONE OF UKRAINE [PDF]

open access: yes, 2018
Western Donbass is a powerful coal-mining region in the Steppe zone of Ukraine. In this region, large areas are damaged by coal mining. The mine rocks spread all over the coal district of Dnipropetrovsk region often contain toxic inorganic ...
Sytnyk, Svitlana
core  

The engineering geology of the Nottingham area, UK [PDF]

open access: yes, 2009
Nottingham was built near a crossing point on the River Trent in the East Midlands of England. Initially, the City developed on a low sandstone hill close to the north bank of the river, which provided a secure, well-drained location above the marshes ...
Bell, F.G.   +3 more
core   +1 more source

An Evaluation of Mortality Rates and Their Determinants in a Cohort of Former Asbestos Miners in South Africa

open access: yesAmerican Journal of Industrial Medicine, EarlyView.
ABSTRACT Background A causal association between occupational asbestos exposure and lung disease, including pneumoconiosis and mesothelioma, is well established. Elevated mortality among former asbestos miners is expected. However, large‐scale South African studies examining all‐cause mortality in this population are lacking.
Yumna Williams‐Mohamed   +3 more
wiley   +1 more source

Multi-scale analysis of stress-corrosion failure and anti-corrosion strategies for anchor bolts in Tashan coal mine

open access: yesScientific Reports
Frequent failures of roadway anchor bolts in the roof-dripping zones of the Tashan coal mine endanger roadway stability and safety. To clarify the stress-corrosion cracking (SCC) mechanism and identify mitigation strategies, we combined water-chemistry ...
Lei Wang   +4 more
doaj   +1 more source

Respirable Dust Exposure in Western Australian Mining: Trends, Variability, and Implications for Occupational Health

open access: yesAmerican Journal of Industrial Medicine, EarlyView.
ABSTRACT Background Mining workers are exposed to a range of respiratory hazards, including respirable dust. While exposure to respirable crystalline silica in the mining industry has been found to be common, less is known about trends in measured levels of exposure to respirable dust overall.
Renee N. Carey   +4 more
wiley   +1 more source

Synthesis and Properties of Moisture-Crosslinkable Poly(Urethane-Urea) With Intrinsic Flame Retardancy

open access: yesAdvances in Polymer Technology
To improve the deteriorated performance caused by CO2 release during the curing process of traditional moisture-crosslinked polyurethane or polyurea and poor flame retardancy, this work realized an effective in situ crosslinking technique triggered by ...
Zongke He   +6 more
doaj   +1 more source

The Effect of Demineralization on Coal Functional Group Pyrolysis: Rank‐Dependent Dual Mechanisms of Structural Reorganization and Mineral Catalysis

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Coal pyrolysis, as a key thermochemical conversion process, is significantly influenced by inherent minerals, yet their role across different coal ranks remains inadequately understood. This study investigates the effect of acid‐washing (demineralization) on the thermal decomposition of six functional groups (aliphatic C–H, aromatic C–H/C=C, C=
Zhiyuan Niu   +4 more
wiley   +1 more source

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