Opinion Expression Mining by Exploiting Keyphrase Extraction ... acl.

Multi-well extraction is a prevalent technique in coalbed methane (CBM) recovery projects. Although numerous studies have extensively explored aspects such as well spacing, the degree of multi-well pumping, and well count, the dynamics of fracture microstructure evolution in proximity to wells—particularly in inter-well regions—remain …

By using extraction metallurgy to extract metals from ores, the environmental impact of mining can be reduced. This is because extraction metallurgy …

Fig. 4 captures the research methodology for the study. It is in line with the studies like (Manjunath et al., 2023; Seth and Rastogi, 2019; Junare and Dod, 2022) Sand and clay were separated using the sedimentation and decantation process as shown in Fig. 5(a). 5 kg of excess weight were put in a plastic bucket, filled with 3/4 of an inch of …

Extraction of coal by opencast mining method creates environmental problems and becomes economically unviable at a greater depth. Therefore, underground mining methods are still being adopted owing to environmental concern and increasing depth of extraction. However, impact of surface subsidence due to underground …

The purpose of protective seam mining is to enhance the permeability of the protected coal seam (PCS) for efficient gas extraction. The investigation of the …

Accurate extraction of slope lines is essential for open-pit mine design, production scheduling, mining volume calculation, road network planning, and slope …

Related extraction techniques, herein lumped into the broad category of in-situ mining, include: (1) extraction of water-soluble salts (e.g., halite mined to produce caverns in salt domes in Gulf Coast states); (2) brine extraction (pumping of brines to the surface to remove valuable, naturally dissolved materials, such as lithium in Clayton ...

Chemistry is a powerful tool in the mining kit, with chemical extraction and separation of ores proving effective in a number of cases. From rare earth element separation to mining asteroids, we round up some of the recent innovations in chemical extraction and separation technologies. Yoana Cholteeva May 4, 2020.

However, the environmental toll of coal mining and extraction has become increasingly evident. This article aims to shed light on the diverse environmental impacts associated with coal mining, encompassing ecosystems, water and air quality and human health. One of the primary environmental consequences

Battery and e-waste recycling is done hydrometallurgically as well. The process varies from metal to metal. It depends on what metal you extract and the ore or host rock. For …

These techniques vary widely, from open-pit mining, which carves out large swathes of land, to underground mining, which delves deep into the earth. Each method has its own …

Conventional solution mining, also known as In Situ Leaching (ISL), refers to the artificial extraction of raw material, by pumping superheated water into deposits.The targeted minerals are dissolved, and the brine is pumped to the surface where it is cooled down, dried, and processed. The process is like heap leaching, where ore is extracted, so a …

Unlocking sustainable resource extraction: Exploring the promising future of ore sorting in Australia. In recent years, the mining industry in Australia has witnessed a remarkable technological transformation with the advent of ore sorting.. This technique has revolutionised the way minerals are extracted and processed, unlocking many benefits …

Key Differences Between Data Mining and Data Extraction. Data mining is also named knowledge discovery in databases, knowledge extraction, data/pattern analysis, information harvesting. Data extraction is used interchangeably with web data extraction, web scraping, web crawling, data retrieval, data harvesting, etc.

Whether that's uranium, gold, silver, palladium or any other natural resource, it is necessary to understand the full extraction process in order to really appreciate the asset. ... Mining activities, including prospecting, exploration, construction, operation, maintenance, expansion, abandonment, decommissioning and repurposing of a mine can ...

%0 Conference Proceedings %T Unsupervised Relation Extraction by Mining Wikipedia Texts Using Information from the Web %A Yan, Yulan %A Okazaki, Naoaki %A Matsuo, Yutaka %A Yang, Zhenglu %A Ishizuka, Mitsuru %Y Su, Keh-Yih %Y Su, Jian %Y Wiebe, Janyce %Y Li, Haizhou %S Proceedings of the Joint Conference of …

Starting in the early 2000s, environmental concerns have been raised about lithium mining from continental brines by local populations, non-governmental organizations and the press, first in Chile ...

Mineral extraction is the systematic procedure of mining and retrieving valuable minerals from the earth. These minerals, ranging from precious metals like gold to basic iron ore, are essential components in the production of numerous products, from …

The Term Extraction component is perfectly suited for this task. According to its definition on MSDN: The Term Extraction transformation extracts terms from text in a transformation input column, and then writes the terms to a transformation output column.... You can use the Term Extraction transformation to discover the content of a data set....

As a result, the split between bitumen mining and in-situ bitumen extraction has dramatically shifted over the past 5 years. View fullsize. see live chart → Since 1999, bitumen extraction from mining operations has grown 245%. However, thermal in-situ extraction has expanded by over 500%.

Air Pollution: Lithium mining and extraction processes can release various pollutants into the air. Dust and particulate matter generated from mining operations can contribute to air pollution, leading to respiratory issues for humans and wildlife in nearby communities. Additionally, using diesel-powered machinery and vehicles during mining ...

The selection of the optimal extractant for acid recovery was based on extraction, stripping and scrubbing efficiencies. The extractants suitable for the recovery of H 2 SO 4 and HCl are in the order of TEHA > Cyanex 923 > TBP > Alamine 336.

Mining is the pulsating heart of the gemstone industry, a crucial part responsible for the glimmer we see in our precious stones. From the initial stages of prospecting to the extraction and post-mining processes, every step plays a key role in determining a gem's journey. The expertise of gemmologists cannot be understated in …

Mining - Quarrying, Extraction, Processing: Although seldom used to form entire structures, stone is greatly valued for its aesthetic appeal, durability, and ease of maintenance. The most popular types include granite, limestone, sandstone, marble, slate, gneiss, and serpentine. All natural stone used for structural support, curtain walls, …

This document addresses the consequences of increased mining for lithium as would be required for the transition from internal combustion engine (ICE) vehicles to battery-powered electric vehicles. This document attempts to provide background on lithium mining, its use in the energy transition and potential environmental consequences, as well as a …

Mining is the process of extracting useful materials from the earth. Some examples of substances that are mined include coal, gold, or iron ore.Iron . ore is the material from which the metal iron is produced.. The process of mining dates back to prehistoric times.. Prehistoric people first mined flint, which was ideal for tools and …

Since the 1990s, remote sensing data have been available to monitor the surface movement for long periods of time. The analysis of satellite data shows that there is still residual subsidence (i.e., with average rates of about −10 mm/year) several decades after mining longwall panels in an area. Several years after the underground …

Researchers at Penn State University say coal mining operations in Appalachia may be the key to a domestic supply of REE in the US. Scientists find efficient way to extract rare earth from acid ...

PILLAR EXTRACTION USING CONTINUOUS MINERS. Overview. Now that longwall equipment has been developed to a stage where it is able to cope with most conditions satisfactorily, longwall mining is the most widely used method of secondary extraction. However, there are still mines and occasions where longwall mining is not suitable e.g.