Results 111 to 120 of about 337,035 (306)
Meitan kexue jishuGob-side entry retaining technology is of great significance to improve coal recovery rate, improve roadway stress environment and ensure mine safety and efficiency.
Chaochao YAN +5 more
doaj +1 more source
Advanced Intelligent Discovery, EarlyView.Bayesian optimization enabled the design of PA56 system with just 8 wt% additives, achieving limiting oxygen index 30.5%, tensile strength 80.9 MPa, and UL‐94 V‐0 rating. Without prior knowledge, the algorithm uncovered synergistic effects between aluminum diethyl‐phosphinate and nanoclay.
Burcu Ozdemir +4 more
wiley +1 more source
New possibilities of calculating the volumes of extracted masses in the surface mining of brown coal [PDF]
, 2017 The companies engaged in brown coal mining are looking for ways of managing the mining process as efficiently as possible. The principal mining technology used for brown coal mining in our country, but also in Germany and Poland, are wheel excavators ...
Gibesová, Beáta +3 more
core
An Autonomous Large Language Model‐Agent Framework for Transparent and Local Time Series Forecasting
Advanced 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
Failure mechanisms of sandstone subjected to cyclic loading considering stress amplitude effects
International Journal of Coal Science & TechnologyIn underground engineering fields, such as mining engineering, rocks are often subjected to cyclic loading, resulting in the deterioration of their mechanical properties, which poses a serious threat to engineering construction.
Qican Ran +7 more
doaj +1 more source
Coal supply for California [PDF]
The potential sources and qualities of coals available for major utility and industrial consumers in California are examined and analyzed with respect to those factors that would affect the reliability of supplies.
Yancik, J. J.
core +1 more source
Scale of Collieries and their Top-Level Management Capability in the Polish Coal Mining Industry: Recent Results [PDF]
, 1979 In this paper the following topics are considered: retrospective research into the effect of coal mine scale on its effectiveness; research results on the effect of the "system size" (coal mine) on the top-level management capability; and problem ...
Bendkowski, J. +2 more
core
American 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
American 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