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, 2020
Following the Paris climate agreement, a consensus has been made on the urgent need for increasing the use of clean energy and large-scale energy storage. This paper proposes a hybrid pumped-hydro energy storage system using goafs of abandoned coal mines.
Jinyang Fan +6 more
semanticscholar +1 more source
Following the Paris climate agreement, a consensus has been made on the urgent need for increasing the use of clean energy and large-scale energy storage. This paper proposes a hybrid pumped-hydro energy storage system using goafs of abandoned coal mines.
Jinyang Fan +6 more
semanticscholar +1 more source
Acid mine drainage formation, control and treatment: Approaches and strategies
The Extractive Industries and Society, 2019Acid mine drainage (AMD) occurs after mining exposes metal sulfides to oxidizing conditions. Leaching of reaction products into surface waters pollute over 20,000 km of streams in the USA alone. The coal mine permitting process requires prediction of AMD
J. Skousen, P. Ziemkiewicz, L. McDonald
semanticscholar +1 more source
Characteristics and trends of coal mine safety development
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2020During the “12th Five-Year Plan” period (2011–2015), the safety production situation of coal mines in Guizhou province was generally good. The main types of accidents are gas, flood and roof accidents.
Xuelong Li, Zuoyong Cao, You-zhe Xu
semanticscholar +1 more source
, 2021
The permeability of coal reservoirs is generally low in most of the mine areas in China. Using the stress-relief effect of the foremost-mined coal seam mining to increase the permeability of coal reservoirs is great significance for coalbed methane (CBM)
Chao Xu, Gang Yang, Kai Wang, Q. Fu
semanticscholar +1 more source
The permeability of coal reservoirs is generally low in most of the mine areas in China. Using the stress-relief effect of the foremost-mined coal seam mining to increase the permeability of coal reservoirs is great significance for coalbed methane (CBM)
Chao Xu, Gang Yang, Kai Wang, Q. Fu
semanticscholar +1 more source
Science of the Total Environment, 2019
Abandoned tailings are one of the most important sources of heavy metal pollution in the areas surrounding mining districts, and significant leaching of heavy metals could be brought by precipitation.
Ping Wang +3 more
semanticscholar +1 more source
Abandoned tailings are one of the most important sources of heavy metal pollution in the areas surrounding mining districts, and significant leaching of heavy metals could be brought by precipitation.
Ping Wang +3 more
semanticscholar +1 more source
2023
Abstract When patients cannot speak for themselves, clinicians look to surrogates to represent their wishes. Surrogate decision makers may not know the patient’s wishes; in which case, they typically try to think of the patient’s best interests or sometimes their own.
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Abstract When patients cannot speak for themselves, clinicians look to surrogates to represent their wishes. Surrogate decision makers may not know the patient’s wishes; in which case, they typically try to think of the patient’s best interests or sometimes their own.
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Disposal of mine tailings via geopolymerization
, 2020From daily life to infrastructure and national defense construction, mining has been key in human history. However, within their vigorous development process, mining activities are also result in many negative impacts on both the environment and human ...
Xiaolong Zhang +3 more
semanticscholar +1 more source
A Global-Scale Spatial Assessment and Geodatabase of Mine Areas
Social Science Research Network, 2021Despite massive growth in mining activity worldwide, efforts to assess the land use of mining at a global scale have been limited. Increasing satellite image quality and accessibility now permit detailed assessments of mine areas and their emerging ...
T. Liang +4 more
semanticscholar +1 more source
Science of the Total Environment, 2018
Although metal ore mining activities are well known as an important source of heavy metals, soil pollution caused by small-scale mining activities has long been overlooked.
Zehang Sun +4 more
semanticscholar +1 more source
Although metal ore mining activities are well known as an important source of heavy metals, soil pollution caused by small-scale mining activities has long been overlooked.
Zehang Sun +4 more
semanticscholar +1 more source
1997
As databases grow in size and complexity the task of adding value to the wealth of data becomes difficult. Data mining has emerged as the technology to add value to enormous databases by finding new and important snippets (or nuggets) of knowledge. With large training sets, however, extremely large collections of nuggets are being extracted, leading to
Graham J. Williams, Zhexue Huang
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As databases grow in size and complexity the task of adding value to the wealth of data becomes difficult. Data mining has emerged as the technology to add value to enormous databases by finding new and important snippets (or nuggets) of knowledge. With large training sets, however, extremely large collections of nuggets are being extracted, leading to
Graham J. Williams, Zhexue Huang
openaire +1 more source