Borehole pre-drainage is an important technical means to control a coal mine gas disaster. In order determine the optimal parameters of Dashucun mine, damage permeability evolution model was established based on deformation, considering adsorption and desorption Klinkenberg effect, fluid-structure coupling seam containing by combining deformation equation mass conservation equation. COMSOL soft...

Abstract Remediation of Cd contaminated soil around mines is still the current academic focus. In order to discuss activation and extraction effects CaCl 2 on concentration speciation a Pb-Zn mine, field investigation sample collection were conducted. Batch experiment was used study influence time extraction. contents analysed. And species extracted by sequential procedures. Results show that t...

A cross-comparison of six strains isolated from two different regions, Chambishi copper mine (Zambia, Africa) and Dexing copper mine (China, Asia), was conducted to study the leaching efficiency of low grade copper ores. The strains belong to the three major species often encountered in bioleaching of copper sulfide ores under mesophilic conditions: Acidithiobacillus ferrooxidans, Acidithiobaci...

Process mining is the extraction of a process model from system logs. These logs have to meet minimum requirements, i.e. each event should refer to a case and a task. Many system logs do not meet these requirements, and therefore it is not possible to use process mining for process optimization or delta analysis. This paper shows an alternative process mining procedure for logs containing data ...

Underground mining method selection is one of the most crucial decisions that should be made by mining engineers. Choosing a suitable underground mining method to carry out extraction from a mineral deposit is very important in terms of the economics, safety and the productivity of mining operations. The aim of this study is developing a fuzzy model to selection the optimum mining method by usi...

Recent advances in information extraction have led to huge knowledge bases (KBs), which capture knowledge in a machine-readable format. Inductive logic programming (ILP) can be used to mine logical rules from these KBs, such as “If two persons are married, then they (usually) live in the same city.” While ILP is a mature field, mining logical rules from KBs is difficult, because KBs make an ope...

Twitter is an on-line social networking service which enables users to communicate by sending and reading up to 140 characters short text called ”tweets”. Users can attach any hashtag, starting with an ”#”, to tweets to indicate additional or summary information. tweets with explicit or implicit spatial intent can be classified as spatial tweets. Spatial tweets are commonly seen in practice, an...

Traditional ground based monitoring of mining activities are no longer acceptable or sometimes sufficient in terms of assessing sustainable business practices. Remote sensing is increasingly influencing the changing social and management processes of mineral extractions. This study focuses on the application of hyperspectral remote sensing to monitor water and vegetation pollutions at the Dexin...

Recently, many Natural Language Processing applications have improved the quality of their output by using various machine learning techniques to mine Information Extraction patterns for capturing information from the input text. Currently, to mine IE patterns one should know in advance the type of the information which should be captured by these patterns. In this work we propose a novel metho...

This article addresses the task of mining concepts from biomedical literature to index and search through this documents base. This research takes place within the Telemakus project, which has for goal to support and facilitate the knowledge discovery process by providing retrieval, visual, and interaction tools to mine and map research findings from research literature in the field of aging. A...