problems of al mining

Environmental Risks of Mining

2012-12-11 · When companies break up materials during mining, the dust can release a variety of heavy metals commonly associated with health problems. As dust, these minerals (such as the asbestos-like mineral riebeckite) can be absorbed into lung tissue, causing problems like pneumoconiosis and silicosis, commonly known as "Black Lung" (Paul & Campbell, 2011).

CHALLENGES OF LAND ACQUISITION IN THE MINING

2014-7-3 · mining company and which family or stool or company is the rightful owner. These boundary and ownership problems have resulted in confusion, abuse, conflicts, undue delays, and extra expenses in land transactions in mining communities Need for surveyors and land buyers to have knowledge of these problems and the

Overview of different approaches to solving problems

2018-1-1 · The main problems faced in dealing with classification problems and regression - is the poor quality of the original data, in which there are as erroneous data and missing values; attribute types, not suitable for the analysis of Data Mining tools, the presence of the dominant classes, as well as the so-called problem of overfitting (retraining ...

Mining Advisor-Advisee Relationships from Research ...

2012-1-31 · mining as a probabilistic ranking problem, and propose a time-constrained probabilistic factor graph (TPFG) model to model the dynamic collaboration network. Specifically, the advisor o f each author and the advising period are modeled together as a joint prob-ability of as many hidden variables as authors. We further design

(PDF) Impacts of mining on water resources in South

Acid mine drainage is recognized as one of the more serious environmental problems in the mining industry. Acid mine drainage is a major problem on coal and gold mines throughout the world and in ...

Challenges of Post-Mining Regions in Central Europe*

2012-12-6 · drama of pit closure” (Baeten et al. 1999). The problems are very similar in all mining regions (Wirth & Lintz 2007) and research in the ReSource project underlines this diagnosis. Firstly, mining has almost eve-rywhere caused considerable environmental degradation. This encompasses abandoned surface mines, un-

Artisanal Gold Mining: A Dangerous Pollution Problem ...

Artisanal Gold Mining: A Dangerous Pollution Problem by Blacksmith Institute Mercury attacks the central nervous system, affects brain functioning and, in extreme cases, exposure will lead to death. Despite being commonly overlooked, industrial pollution still poses a significant threat to human health, particularly in the case of artisanal gold mining. Global Toxic Pollution – Under []

Environmental impact of phosphate mining and

2018-6-28 · was a common air quality problem throughout all mining activities; fluoride emissions and radon gas emission were also serious problems. Toxic metals and radioactive elements of significant human health problems were Pb, Cd, Hg, Cr, As, U Th and Ra. Most researches agreed that 226Ra is considered as one of the most toxic radionuclide. The ...

Conflict implications of coal mining and

AbstractIntroductionEnvironmental Pollution at EmalahleniEnvironmental Pollution in The South Durban CommunitySouth African Youth Awareness of Pollution and Conflict ImplicationsOverview of Conflict in The Niger Delta Region of NigeriaRecommendations About Pre-Emptive MeasuresConclusionGlobally, mining and combustion of fossil fuels, especially coal, have resulted in various environmental problems. The adverse effects of these industries on human health, agriculture and the general ecosystem, and how they could result in conflict, have been widely reported. Firstly, this study examines the current state of environmental pollution at a few places in South Africa, and how it could possibly result in environmental conflict b在accord.org.za上查看更多信息

Impacts of Surface Gold Mining on Land Use Systems

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Process Mining 101 – Goals and Steps - PAFnow

2020-7-31 · Process Mining shows you the bottlenecks and problems in your process immediately. You can see how many cases are taking a specific route, how long it takes for a process step to finish, and how that time compares to your overall process. This makes it very easy to find improvement potential and consider automation for specific process steps ...

10 CHALLENGING PROBLEMS IN DATA MINING

2020-1-27 · In October 2005, we took an initiative to identify 10 challenging problems in data mining research, by consulting some of the most active researchers in data mining and machine learning for their opinions on what are considered important and worthy topics for future research in data mining.

Process Mining 101 – What is Process Mining - PAFnow

2020-7-28 · The main goal of process mining is to analyze how processes actually transpire, how they deviate from the ideal model, what problems occur, what optimization measures should be taken, and then start to improve the process. You can use the technique on any process as long as the relevant data is stored in an accessible IT system.

Mine Water Problems and Solutions in China |

2018-4-4 · Mining can adversely affect the quantity and quality of groundwater and surface water in mining areas (Bebbington and Williams 2008; Vidic et al. 2013), threatening the sustainability of water resources (Yang et al. 2013) and the public health of local residents (Li et al. 2016; Wu and Sun 2016).Ecological degradation and health problems due to mine waste discharges have been reported ...

(PDF) Environmental Impact of Bauxite Mining: A Review

Mining industries in India has always a tendency to undermine the role of EIA in its pre-operational, during mining and post operational plans. The basic law governing the mines is The Mines Act ...

A review of UAV monitoring in mining areas: current

2019-8-3 · Underground mining has caused collapse and fissuring of land surface, and subsidence has destroyed large areas of arable land, leading to persistent hazards such as soil erosion, waterlogging and increased carbon emissions (Lechner et al. 2016; Qu et al. 2017; Xiao et al. 2019b). Open-cast mining produces spoil heaps, tailings, solid waste and ...

Data Mining for Direct Marketing: Problems and Solutions

2006-1-11 · 4 Specific Problems in Data Mining During data mining on these three datasets for direct marketing, we encountered several specific problems. The first and most obvious problem is the extremely imbalanced class distribution. Typically, only 1% of the examples are positive (responders or buyers), and the rest are negative.

Appendix 2: Environmental and Social Impacts of Mining

2018-9-21 · By nature, mining involves the production of large quantities of waste, in some cases contributing significantly to a nation’s total waste output. For example, a large proportion of the materials flows inputs and outputs in the United States can be attributed to fossil fuels, coal, and metal mining (Matthews et al., 2000:107). The amount of waste

Artisanal and Small-scale Mining in Africa:

Mining corporations benefit in turn through the minimisation of security risks, managing reputational risks and contributing to a ‘social license to mine’ by maximising community development opportunities. A variety of initiatives and resources exist which aim to support better practices in ASM mining. The Communities and Small-scale Mining ...

Process

Process mining is an emerging discipline based on process model-driven approaches and data mining. It not only allows organizations to fully benefit from the information stored in their systems, but it can also be used to check the conformance of processes, detect bottlenecks, and predict execution problems.

Process Mining 101 – Goals and Steps - PAFnow

2020-7-31 · Process Mining shows you the bottlenecks and problems in your process immediately. You can see how many cases are taking a specific route, how long it takes for a process step to finish, and how that time compares to your overall process. This makes it very easy to find improvement potential and consider automation for specific process steps ...

Process Mining 101 – What is Process Mining - PAFnow

2020-7-28 · The main goal of process mining is to analyze how processes actually transpire, how they deviate from the ideal model, what problems occur, what optimization measures should be taken, and then start to improve the process. You can use the technique on any process as long as the relevant data is stored in an accessible IT system.

Artisanal Gold Mining: A Dangerous Pollution Problem ...

Artisanal Gold Mining: A Dangerous Pollution Problem by Blacksmith Institute Mercury attacks the central nervous system, affects brain functioning and, in extreme cases, exposure will lead to death. Despite being commonly overlooked, industrial pollution still poses a significant threat to human health, particularly in the case of artisanal gold mining. Global Toxic Pollution – Under []

Data Mining for Direct Marketing: Problems and Solutions

2006-1-11 · 4 Specific Problems in Data Mining During data mining on these three datasets for direct marketing, we encountered several specific problems. The first and most obvious problem is the extremely imbalanced class distribution. Typically, only 1% of the examples are positive (responders or buyers), and the rest are negative.

Detecting Large-Scale System Problems by Mining

2010-5-10 · Detecting Problems by Mining Console Logs Experiments Precision Recall Online 86% 100% Offline 91% 99.3% Table 3. Precision and recalls of both online and offline de-tection. Notice that as detailed in Xu et al. (2009a), the online detection precision is lowered by a number of am-biguous cases. time performance problems that have been confirmed

Machine Learning and Data Mining(机器学习与数据挖掘 ...

2018-1-22 · In data mining, anomaly detection (also outlier detection) is the identification of items, events or observations which do not conform to an expected pattern or other items in a dataset.[1] Typically the anomalous items will translate to some kind of problem such as bank fraud, a structural defect, medical problems or errors in a text.

A comprehensive review on privacy preserving data

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Deriving the Pricing Power of Product Features by Mining ...

2011-8-16 · scripts. Netzer et al. (2011) combine text mining and semantic network analysis to understand the brand associative network and the implied market struc-ture. Decker and Trusov (2010) use text mining to estimate the relative effect of product attributes and brand names on the overall evaluation of the prod-ucts. But none of these studies focus ...

Mining drives extensive deforestation in the Brazilian ...

2017-10-18 · Industrial mining contributes to deforestation in the Amazon, and the extent of effect could occur beyond areas of land explicitly permitted for mining. Here, Sonter et al. show that deforestation ...

ArnetMiner: Extraction and Mining of Academic Social

2012-1-31 · Expert finding is one of the most important issues for mining so-cial networks. For example, both Nie et al. [24] and Balog et al. [4] propose extended language models to address the expert finding problem. From 2005, Text REtrieval Conference (TREC) has pro-vided a platform with the Enterprise Search Track for researchers