subject:(Mining)

1. Perla, Cecilia. Extracting from the Extractors: The Politics of Private Welfare in the Peruvian Mining Industry.

Degree: PhD, Political Science, 2012, Brown University

URL: https://repository.library.brown.edu/studio/item/bdr:297720/

► As a result of global and domestic processes unleashed over the last thirty years, many global extractive companies have created special funds directed to contribute… (more)

▼ As a result of global and domestic processes unleashed over the last thirty years, many global extractive companies have created special funds directed to contribute to the social development of the populations living near their operations. These considerable funds are under the direct control of extractive companies and are showcased as part of the Corporate Social Responsibility (CSR) agenda promoted by the industry. Despite the potential positive developmental impacts they may have, the process of fund allocation is far from ‘politics-free’. In this dissertation I explore the distributional politics behind the allocation of extractive companies’ social funds on fence line populations. The empirical testing ground of this project is a controlled comparison of two large-scale mining companies operating in Peru, Southern Copper Corporation and Minera Barrick Misquichilca, which have two operations each: Toquepala, Cuajone, Pierina and Lagunas Norte. This research design allows for contrasts between companies – to explore the differences in corporate characteristics – and within companies – to investigate the diverse local configurations that companies encounter on the ground. Evidence from 14 months of fieldwork at these four mining localities suggests two broad conclusions. First, even though both companies have adopted a similar CSR rhetoric, their CSR practices on the ground differ substantially. To a large extent, the level and patterns of fund allocation respond to the institutionalization of processes that translate the ambiguous CSR rhetoric into daily routines. Second, despite the power of mining companies and the low organizational density of fence line populations, I find that local residents can influence the size and selection of social investments if they are able to adopt globally-relevant frames to make claims on companies. Through a framework that concentrates on the interactions between field company officials and local residents, I show the mismatch between CSR rhetoric and actual performance and document the new, powerful strategies that local residents can deploy to increase their leverage over large extractive companies. These findings support the analytical value of qualitative, field-based research to understand the encounters between extractive companies and local populations. Advisors/Committee Members: Luong Jones, Pauline (Director), Cammett, Melani (Reader), Heller, Patrick (Reader), Stallings, Barbara (Reader).

Subjects/Keywords: mining

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APA (6^th Edition):

Perla, C. (2012). Extracting from the Extractors: The Politics of Private Welfare in the Peruvian Mining Industry. (Doctoral Dissertation). Brown University. Retrieved from https://repository.library.brown.edu/studio/item/bdr:297720/

Chicago Manual of Style (16^th Edition):

Perla, Cecilia. “Extracting from the Extractors: The Politics of Private Welfare in the Peruvian Mining Industry.” 2012. Doctoral Dissertation, Brown University. Accessed April 10, 2021. https://repository.library.brown.edu/studio/item/bdr:297720/.

MLA Handbook (7^th Edition):

Perla, Cecilia. “Extracting from the Extractors: The Politics of Private Welfare in the Peruvian Mining Industry.” 2012. Web. 10 Apr 2021.

Vancouver:

Perla C. Extracting from the Extractors: The Politics of Private Welfare in the Peruvian Mining Industry. [Internet] [Doctoral dissertation]. Brown University; 2012. [cited 2021 Apr 10]. Available from: https://repository.library.brown.edu/studio/item/bdr:297720/.

Council of Science Editors:

Perla C. Extracting from the Extractors: The Politics of Private Welfare in the Peruvian Mining Industry. [Doctoral Dissertation]. Brown University; 2012. Available from: https://repository.library.brown.edu/studio/item/bdr:297720/

Cornell University

2. Haque, Asif-ul. Information And Social System Interaction.

Degree: PhD, Computer Science, 2011, Cornell University

URL: http://hdl.handle.net/1813/30752

► Ever increasing participation has made the interaction between information and social systems not only interesting to observe but essential to quantify and analyze. This dissertation… (more)

Subjects/Keywords: data mining; networks; text mining

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APA (6^th Edition):

Haque, A. (2011). Information And Social System Interaction. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/30752

Chicago Manual of Style (16^th Edition):

Haque, Asif-ul. “Information And Social System Interaction.” 2011. Doctoral Dissertation, Cornell University. Accessed April 10, 2021. http://hdl.handle.net/1813/30752.

MLA Handbook (7^th Edition):

Haque, Asif-ul. “Information And Social System Interaction.” 2011. Web. 10 Apr 2021.

Vancouver:

Haque A. Information And Social System Interaction. [Internet] [Doctoral dissertation]. Cornell University; 2011. [cited 2021 Apr 10]. Available from: http://hdl.handle.net/1813/30752.

Council of Science Editors:

Haque A. Information And Social System Interaction. [Doctoral Dissertation]. Cornell University; 2011. Available from: http://hdl.handle.net/1813/30752

University of Zambia

3. Mwale, M. M. B. Small-scale mining in Zambia .

Degree: 2012, University of Zambia

URL: http://hdl.handle.net/123456789/1486

► The literature on the mineral deposits and small-scale mining activities in Zambia has been reviewed. The present state of the industry has been described with… (more)

Subjects/Keywords: Small scale mining; Mining-Zambia

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APA (6^th Edition):

Mwale, M. M. B. (2012). Small-scale mining in Zambia . (Thesis). University of Zambia. Retrieved from http://hdl.handle.net/123456789/1486

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mwale, M M B. “Small-scale mining in Zambia .” 2012. Thesis, University of Zambia. Accessed April 10, 2021. http://hdl.handle.net/123456789/1486.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mwale, M M B. “Small-scale mining in Zambia .” 2012. Web. 10 Apr 2021.

Vancouver:

Mwale MMB. Small-scale mining in Zambia . [Internet] [Thesis]. University of Zambia; 2012. [cited 2021 Apr 10]. Available from: http://hdl.handle.net/123456789/1486.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mwale MMB. Small-scale mining in Zambia . [Thesis]. University of Zambia; 2012. Available from: http://hdl.handle.net/123456789/1486

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Queens University

4. Lamb, Carolyn. Detecting Deception in Interrogation Settings .

Degree: Computing, 2012, Queens University

URL: http://hdl.handle.net/1974/7695

► Bag-of-words deception detection systems outperform humans, but are still not always accurate enough to be useful. In interrogation settings, present models do not take into… (more)

Subjects/Keywords: Data Mining ; Deception ; Text Mining

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APA (6^th Edition):

Lamb, C. (2012). Detecting Deception in Interrogation Settings . (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/7695

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lamb, Carolyn. “Detecting Deception in Interrogation Settings .” 2012. Thesis, Queens University. Accessed April 10, 2021. http://hdl.handle.net/1974/7695.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lamb, Carolyn. “Detecting Deception in Interrogation Settings .” 2012. Web. 10 Apr 2021.

Vancouver:

Lamb C. Detecting Deception in Interrogation Settings . [Internet] [Thesis]. Queens University; 2012. [cited 2021 Apr 10]. Available from: http://hdl.handle.net/1974/7695.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lamb C. Detecting Deception in Interrogation Settings . [Thesis]. Queens University; 2012. Available from: http://hdl.handle.net/1974/7695

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Zambia

5. Chipili, Evance E.M. Developing Small-Scale Mining in Malawi .

Degree: 2011, University of Zambia

URL: http://hdl.handle.net/123456789/605

► Malawi is endowed with a variety of mineral resources. Predominant among these are gemstones, industrial minerals, construction mineral materials and fuel minerals such as coal.… (more)

Subjects/Keywords: Mining (Malawi)

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APA (6^th Edition):

Chipili, E. E. M. (2011). Developing Small-Scale Mining in Malawi . (Thesis). University of Zambia. Retrieved from http://hdl.handle.net/123456789/605

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Chipili, Evance E M. “Developing Small-Scale Mining in Malawi .” 2011. Thesis, University of Zambia. Accessed April 10, 2021. http://hdl.handle.net/123456789/605.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Chipili, Evance E M. “Developing Small-Scale Mining in Malawi .” 2011. Web. 10 Apr 2021.

Vancouver:

Chipili EEM. Developing Small-Scale Mining in Malawi . [Internet] [Thesis]. University of Zambia; 2011. [cited 2021 Apr 10]. Available from: http://hdl.handle.net/123456789/605.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Chipili EEM. Developing Small-Scale Mining in Malawi . [Thesis]. University of Zambia; 2011. Available from: http://hdl.handle.net/123456789/605

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Edinburgh

6. Mezquita, Jose. The Social Impact of the Development of a Copper Mine on the Ngöbe Bugle Indigenous Community of Cerro Colorado in the Republic of Panama.

Degree: 2010, University of Edinburgh

URL: http://hdl.handle.net/1842/5226

► This dissertation explores the situations which have been taking place within Panama with regards to the emergence of a mining sector. A very controversial topic,… (more)

Subjects/Keywords: Mining; Panama

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APA (6^th Edition):

Mezquita, J. (2010). The Social Impact of the Development of a Copper Mine on the Ngöbe Bugle Indigenous Community of Cerro Colorado in the Republic of Panama. (Thesis). University of Edinburgh. Retrieved from http://hdl.handle.net/1842/5226

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mezquita, Jose. “The Social Impact of the Development of a Copper Mine on the Ngöbe Bugle Indigenous Community of Cerro Colorado in the Republic of Panama.” 2010. Thesis, University of Edinburgh. Accessed April 10, 2021. http://hdl.handle.net/1842/5226.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mezquita, Jose. “The Social Impact of the Development of a Copper Mine on the Ngöbe Bugle Indigenous Community of Cerro Colorado in the Republic of Panama.” 2010. Web. 10 Apr 2021.

Vancouver:

Mezquita J. The Social Impact of the Development of a Copper Mine on the Ngöbe Bugle Indigenous Community of Cerro Colorado in the Republic of Panama. [Internet] [Thesis]. University of Edinburgh; 2010. [cited 2021 Apr 10]. Available from: http://hdl.handle.net/1842/5226.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mezquita J. The Social Impact of the Development of a Copper Mine on the Ngöbe Bugle Indigenous Community of Cerro Colorado in the Republic of Panama. [Thesis]. University of Edinburgh; 2010. Available from: http://hdl.handle.net/1842/5226

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Saskatchewan

7. Khare, Nikisha Shally 1993-. COMMUNITY RESISTANCE TO CANADIAN TRANSNATIONAL MINING OPERATIONS IN LATIN AMERICA.

Degree: 2018, University of Saskatchewan

URL: http://hdl.handle.net/10388/9523

► The practices of Canadian mining companies operating in Latin America, and the Canadian government’s role in supporting these practices, have been duly criticized for the… (more)

▼ The practices of Canadian mining companies operating in Latin America, and the Canadian government’s role in supporting these practices, have been duly criticized for the blatant social, environmental, and economic injustices created and perpetuated by transnational mining. The violation of human and Indigenous rights has elicited widespread resistance to mining from surrounding communities. A considerable amount of literature has explored the dynamics of this anti-mining activism, with most articles exploring a particular case study or feature of a few cases. However, a region-wide systematic synthesis of qualitative themes on the topic has not been found. Given the extent and nature of Canadian mining companies operating Latin America, the purpose of this project was to scope the published literature to characterize the nature of community resistance to Canadian transnational mining in Latin America. A scoping review method was employed to systematically search the literature, select studies for inclusion, chart qualitative data, and synthesize the literature reviewed. After screening, 61 articles discussing a total of 26 conflicts were included in this review. Conflicts in several Latin American countries with various Canadian mining companies were represented in this literature. In 69 percent of conflicts, the literature explicitly states the involvement of Indigenous groups in anti-mining resistance. Seventy-three percent of communities in the 26 conflicts were involved in agricultural livelihood activities. Sixty-five percent of conflicts occurred during the exploration stages of mining with all but one of these communities expressing complete rejections of mining, while 27 percent of conflicts occurred during the exploitation stages of mining with all of these communities seeking to change the conditions under which mining occurred. Communities had several interrelated concerns about mining that motivated their resistance, and used a variety of tactics to enact their activism. Furthermore, only five of 61 articles discussed at length the gendered dimensions of resistance, providing insights into gendered adversities, narratives, and tactics of resistance, and revealing a need for a gendered lens in the study of anti-mining movements. The literature reveals promising and important insights as well as clear gaps in research on the complexity and nuances of anti-mining movements in Latin America. Advisors/Committee Members: Hanson, Lori, Bharadwaj, Lalita, McKenzie, Marcia, Fowler-Kerry, Susan, Jones, Steven.

Subjects/Keywords: activism; mining

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APA (6^th Edition):

Khare, N. S. 1. (2018). COMMUNITY RESISTANCE TO CANADIAN TRANSNATIONAL MINING OPERATIONS IN LATIN AMERICA. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/9523

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Khare, Nikisha Shally 1993-. “COMMUNITY RESISTANCE TO CANADIAN TRANSNATIONAL MINING OPERATIONS IN LATIN AMERICA.” 2018. Thesis, University of Saskatchewan. Accessed April 10, 2021. http://hdl.handle.net/10388/9523.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Khare, Nikisha Shally 1993-. “COMMUNITY RESISTANCE TO CANADIAN TRANSNATIONAL MINING OPERATIONS IN LATIN AMERICA.” 2018. Web. 10 Apr 2021.

Vancouver:

Khare NS1. COMMUNITY RESISTANCE TO CANADIAN TRANSNATIONAL MINING OPERATIONS IN LATIN AMERICA. [Internet] [Thesis]. University of Saskatchewan; 2018. [cited 2021 Apr 10]. Available from: http://hdl.handle.net/10388/9523.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Khare NS1. COMMUNITY RESISTANCE TO CANADIAN TRANSNATIONAL MINING OPERATIONS IN LATIN AMERICA. [Thesis]. University of Saskatchewan; 2018. Available from: http://hdl.handle.net/10388/9523

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Queens University

8. Johnson, Stephanie. Automatic P-wave Picking of Microseismic Events in Underground Mines .

Degree: Mining Engineering, 2014, Queens University

URL: http://hdl.handle.net/1974/12165

► This thesis investigates microseismic P-wave arrival time detection performance of automatic picking algorithms, as well as the handpicking performance of human experts. The data set… (more)

▼ This thesis investigates microseismic P-wave arrival time detection performance of automatic picking algorithms, as well as the handpicking performance of human experts. The data set used in this project was collected from Malmberget mine (LKAB, Sweden) and the handpicked P-wave arrivals were prepared by multiple expert analysts from the Institute of Mine Seismology (IMS). Characterization of the event records in the data set was completed including the magnitude distribution of the events, noise content of the traces, and frequency spectrum of the traces. Three promising automatic P-wave picking algorithms from previous seismological research were investigated: the short-term average to long-term average ratio detector (STA/LTA), the characteristic function detector (CF), and the autoregressive modelling detector (ARfpe). Several versions of each algorithm were implemented, and the most promising versions were tested on the full dataset of microseismic events. The STA/LTA algorithm and CF algorithm were superior to the ARfpe algorithm in terms of accuracy and percentage of false negatives (missed P-wave arrival time picks). The analyst P-wave arrival times were compared and statistical distributions of the analyst P-wave arrival time differences were studied. The analyst P-wave arrival time difference and algorithm P-wave arrival time difference were defined as the mean analyst P-wave arrival time minus the specific analyst P-wave arrival time pick or the specific algorithm P-wave arrival time pick. The analyst and algorithm P-wave arrival time differences were combined into separate statistical distributions and compared. The analyst P-wave arrival time distribution lengths varied by a factor of 5, and the percentage of outliers in the distribution varied between 12% and 32%. The STA/LTA algorithm had comparable distribution statistics to the worst analyst P-wave arrival in terms of median value, distribution length, and percentage of outliers. However when the number of traces with automatic P-wave picks within the analyst handpicking range was calculated the STA/LTA algorithm had only 32.0% of picks and the CF algorithm had only 11.6% of picks.

Subjects/Keywords: Mining ; Seismology

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APA (6^th Edition):

Johnson, S. (2014). Automatic P-wave Picking of Microseismic Events in Underground Mines . (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/12165

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Johnson, Stephanie. “Automatic P-wave Picking of Microseismic Events in Underground Mines .” 2014. Thesis, Queens University. Accessed April 10, 2021. http://hdl.handle.net/1974/12165.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Johnson, Stephanie. “Automatic P-wave Picking of Microseismic Events in Underground Mines .” 2014. Web. 10 Apr 2021.

Vancouver:

Johnson S. Automatic P-wave Picking of Microseismic Events in Underground Mines . [Internet] [Thesis]. Queens University; 2014. [cited 2021 Apr 10]. Available from: http://hdl.handle.net/1974/12165.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Johnson S. Automatic P-wave Picking of Microseismic Events in Underground Mines . [Thesis]. Queens University; 2014. Available from: http://hdl.handle.net/1974/12165

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Queens University

9. Alsadhan, Nasser. Inferring Systemic Functional Language Models .

Degree: Computing, 2014, Queens University

URL: http://hdl.handle.net/1974/12396

► Language production in the brain is a complicated process that is not yet fully understood. The bag-of-words model, which considers the frequencies of each word… (more)

Subjects/Keywords: Text Mining

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APA (6^th Edition):

Alsadhan, N. (2014). Inferring Systemic Functional Language Models . (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/12396

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Alsadhan, Nasser. “Inferring Systemic Functional Language Models .” 2014. Thesis, Queens University. Accessed April 10, 2021. http://hdl.handle.net/1974/12396.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Alsadhan, Nasser. “Inferring Systemic Functional Language Models .” 2014. Web. 10 Apr 2021.

Vancouver:

Alsadhan N. Inferring Systemic Functional Language Models . [Internet] [Thesis]. Queens University; 2014. [cited 2021 Apr 10]. Available from: http://hdl.handle.net/1974/12396.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Alsadhan N. Inferring Systemic Functional Language Models . [Thesis]. Queens University; 2014. Available from: http://hdl.handle.net/1974/12396

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

West Virginia University

10. Nolan, Timothy A. Production and Cost Assessment of a Potential Application of Surface Miners in Coal Mining in West Virginia.

Degree: MS, Mining Engineering, 2012, West Virginia University

URL: https://doi.org/10.33915/etd.3337 ; https://researchrepository.wvu.edu/etd/3337

► The broad objective of this research was to improve current mining practices and reduce negative environmental impact of surface coal mining in West Virginia (WV).… (more)

▼ The broad objective of this research was to improve current mining practices and reduce negative environmental impact of surface coal mining in West Virginia (WV). The specific objectives were to (i) build the production and cost models to determine if conventional surface mining unit operations such as drilling, blasting, digging, loading, and crushing can be replaced with one mining machine called a surface miner (SM), (ii) apply the analytical hierarchy process (AHP) to help select the optimal mining method, and (iii) determine the extent of which the SM would benefit surface coal mining in WV, particularly by reducing some of the negative environmental impacts associated with current extraction practices.;The entire production and cost models were developed in MS Excel. The design and the procedures used for achieving the objectives involved six interrelated modules. Module1 includes rock properties of sandstone, shale, which are the predominant overburden and interburden materials in WV, and sub-bituminous coal. Module #2 considers drilling and blasting operations. Module #3 includes digging and loading of overburden material. It specifically addresses mining equipment such as electric and hydraulic shovels and front-end wheel loaders. Interburden material also includes sandstone and shale, and the two unit operations involved are ripping and pushing by bulldozers and loading by hydraulic backhoe shovel. Module #4 covers coal extraction by hydraulic backhoe shovel and the crushing operation. Module #5 focuses on the SM, while Module #6 is used to conduct comparative analyses among all mining unit operations for overburden, interburden, and coal. The resulting production rates, ownership, and operating costs were also presented. The analytical hierarchy process (AHP) was used to help select the optimal mining method based on both qualitative and quantitative factors.;Based on the results of this research, application of SM would benefit coal extraction in surface mining operations in WV. The estimated cost of coal extraction is lower than with conventional mining methods, and the machine is able to work selectively with high separation accuracy. Thin seams of coal and overburden can be mined separately, thus preventing dilution with interburden material. Rising operating costs for the SM become an issue as the quantity of material being extracted increases and higher values of unconfined compressive strength are encountered. Cutting tools on the drum wear out faster and require more changes and, at a certain point, the SM becomes unfeasible because of the time and cost involved in changing cutting tools. A significant advantage of SM, where applicable, is the elimination of the negative environmental impacts associated with blasting. Advisors/Committee Members: Vladislav Kecojevic..

Subjects/Keywords: Mining engineering

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APA (6^th Edition):

Nolan, T. A. (2012). Production and Cost Assessment of a Potential Application of Surface Miners in Coal Mining in West Virginia. (Thesis). West Virginia University. Retrieved from https://doi.org/10.33915/etd.3337 ; https://researchrepository.wvu.edu/etd/3337

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Nolan, Timothy A. “Production and Cost Assessment of a Potential Application of Surface Miners in Coal Mining in West Virginia.” 2012. Thesis, West Virginia University. Accessed April 10, 2021. https://doi.org/10.33915/etd.3337 ; https://researchrepository.wvu.edu/etd/3337.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Nolan, Timothy A. “Production and Cost Assessment of a Potential Application of Surface Miners in Coal Mining in West Virginia.” 2012. Web. 10 Apr 2021.

Vancouver:

Nolan TA. Production and Cost Assessment of a Potential Application of Surface Miners in Coal Mining in West Virginia. [Internet] [Thesis]. West Virginia University; 2012. [cited 2021 Apr 10]. Available from: https://doi.org/10.33915/etd.3337 ; https://researchrepository.wvu.edu/etd/3337.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Nolan TA. Production and Cost Assessment of a Potential Application of Surface Miners in Coal Mining in West Virginia. [Thesis]. West Virginia University; 2012. Available from: https://doi.org/10.33915/etd.3337 ; https://researchrepository.wvu.edu/etd/3337

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

West Virginia University

11. Qiu, Biao. Applications of Surface and Subsurface Subsidence Theories to Solve Ground Control Problems.

Degree: PhD, Mining Engineering, 2013, West Virginia University

URL: https://doi.org/10.33915/etd.178 ; https://researchrepository.wvu.edu/etd/178

► The stability of the underground mine openings largely depends on the surrounding ground conditions, such as stress concentrations, geological conditions and support intensities etc. In… (more)

▼ The stability of the underground mine openings largely depends on the surrounding ground conditions, such as stress concentrations, geological conditions and support intensities etc. In particular, the ground control stability associated with large movements and deformations of the strata is much more complicated and could induce much more severe safety problems. A ground control failure could endanger the coal miner's safety not only directly by roof, pillar, floor and/or rib failure, but also by ground cracks induced methane and water inundations indirectly. This study is aimed to develop comprehensive models to simulate the ground response to mining and solve the ground control problems associated with it.;During the last four decades, many research works have been conducted on the ground control study, and numerous models, including analytical, empirical, numerical and hybrid models, were developed to facilitate ground control and support design. If a model is to be used as a common mine design tool, the simplicity of the model itself and the consistency between actual in-mine and modeled ground response to mining are essential. For the study of the ground control stability associated with large movements and deformations, the key is to know the movements and deformations of the subsurface strata. The subsidence prediction models can determine the movements and deformations very accurately as proven by plenty of surface subsidence survey data. In this study, the subsidence prediction models are employed to analyze the stability of some subsidence related ground control problems based on the subsurface strata movements and deformations.;In this dissertation, an innovative approach, employing the influence function method while considering the hard rock layers, is applied in the development of an enhanced subsurface subsidence prediction model. This improved model is then applied in analyzing three specific subsidence related ground control problems. An analytical model, employing dynamic subsurface subsidence theory and considering the roof support interaction, is developed to analyze the stability of pre-driven longwall recovery room. The mechanism of the ground control stability problems as well as the potential safety problems associated with multi-seam mining interactions is discussed. Multi-seam mining subsidence prediction methods are re-examined based on the multi-seam mining interaction analysis. The redistribution of the stresses and strains in overburden is also able to affect the surface and subsurface water bodies in various degrees. Mathematical models are developed to link longwall induced overburden strata permeability change and subsurface deformations. A ground water flow model is used to assess the longwall mining impacts on surface and subsurface hydrological systems.;This study provides a greater understanding of the mechanism of the subsidence-related ground control problems. Innovative methods are developed to derive stress, strain and permeability change, and quantify the subsidence effects… Advisors/Committee Members: Yi Luo, Keith A. Heasley, Bruce Kang.

Subjects/Keywords: Mining engineering

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APA (6^th Edition):

Qiu, B. (2013). Applications of Surface and Subsurface Subsidence Theories to Solve Ground Control Problems. (Doctoral Dissertation). West Virginia University. Retrieved from https://doi.org/10.33915/etd.178 ; https://researchrepository.wvu.edu/etd/178

Chicago Manual of Style (16^th Edition):

Qiu, Biao. “Applications of Surface and Subsurface Subsidence Theories to Solve Ground Control Problems.” 2013. Doctoral Dissertation, West Virginia University. Accessed April 10, 2021. https://doi.org/10.33915/etd.178 ; https://researchrepository.wvu.edu/etd/178.

MLA Handbook (7^th Edition):

Qiu, Biao. “Applications of Surface and Subsurface Subsidence Theories to Solve Ground Control Problems.” 2013. Web. 10 Apr 2021.

Vancouver:

Qiu B. Applications of Surface and Subsurface Subsidence Theories to Solve Ground Control Problems. [Internet] [Doctoral dissertation]. West Virginia University; 2013. [cited 2021 Apr 10]. Available from: https://doi.org/10.33915/etd.178 ; https://researchrepository.wvu.edu/etd/178.

Council of Science Editors:

Qiu B. Applications of Surface and Subsurface Subsidence Theories to Solve Ground Control Problems. [Doctoral Dissertation]. West Virginia University; 2013. Available from: https://doi.org/10.33915/etd.178 ; https://researchrepository.wvu.edu/etd/178

West Virginia University

12. Sears, Morgan M. Calibrating the LaModel Program for Shallow Cover Multiple-Seam Mines.

Degree: PhD, Mining Engineering, 2013, West Virginia University

URL: https://doi.org/10.33915/etd.676 ; https://researchrepository.wvu.edu/etd/676

► Stable underground mine openings are fundamental to ensuring the safety of miners and providing a safe work environment. During the past decade, approximately 40% of… (more)

▼ Stable underground mine openings are fundamental to ensuring the safety of miners and providing a safe work environment. During the past decade, approximately 40% of underground mining fatalities were caused by roof falls, rib collapses, or bumps/bursts, 19% of which occurred during retreat mining (Pappas and Mark, 2012). In addition, approximately 600 miners are non-fatally injured (often severely) every year by rock falls in coal mines (Pappas and Mark, 2012).;To help with designing stable mine pillars in deep-cover situations, a new calibration method for deep-cover pillar retreat mining was developed and implemented into the LaModel 3.0 program a few years ago (Heasley et al., 2010). This calibrated method was demonstrated to have very good results with a limited database of 47 deep-cover case histories, where a stability factor (SF) of 1.40 or above showed a 90% chance of success. During the development of the deep-cover calibration method for LaModel 3.0, there was nothing fundamental in the derivation that limited the method to only deep-cover mines; however, the method has not been specifically validated for shallow-cover mines.;This research work seeks to extend calibration of the LaModel program to shallow-cover mines. To perform this expansion, 40 shallow cover case histories from 12 different mines were obtained. The difficulty in finding shallow-cover failure cases for single seam mines necessitated creating a database which also included multiple-seam interactions. In general, with shallow cover, most mines were very successful, unless some type of multiple-seam stress became involved.;An initial analysis of the data showed two distinct failure populations, one comprised of inadequately sized pillars for global stability (mostly massive collapses) and one where local entry stability (massive roof falls or floor heave) was compromised by pillar stresses, weak roof/floor and/or multiple seam stresses. This distinction in failure mode required analyzing the database in two steps. First, an adequate pillar safety factor for global design stability was determined based on the pillar failure subset of the data. Then, once global stability was confirmed, the entry stability was analyzed separately to quantify the significance of parameters such as depth, coal mine roof rating (CMRR), entry stresses, etc. to the local stability of the entry.;Statistical analysis of the pillar failure subset of the data indicated that a SF of 2.0 or above resulted in an approximate 90% chance of maintaining global stability. Then, for the entry stability subset of the data, it was found that the CMRR and the multiple seam stress were most significant in predicting success or failure. With the addition of these two parameters, entry stability was able to be predicted with an approximate 75% accuracy.;Incorporating a shallow-cover, calibration technique into the LaModel program further enhances the most widely used boundary-element model to help develop stable pillar design at all depths. With the addition of this shallow-cover… Advisors/Committee Members: Keith A. Heasley, Christopher Bise, Yi Luo.

Subjects/Keywords: Mining engineering

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Sears, M. M. (2013). Calibrating the LaModel Program for Shallow Cover Multiple-Seam Mines. (Doctoral Dissertation). West Virginia University. Retrieved from https://doi.org/10.33915/etd.676 ; https://researchrepository.wvu.edu/etd/676

Chicago Manual of Style (16^th Edition):

Sears, Morgan M. “Calibrating the LaModel Program for Shallow Cover Multiple-Seam Mines.” 2013. Doctoral Dissertation, West Virginia University. Accessed April 10, 2021. https://doi.org/10.33915/etd.676 ; https://researchrepository.wvu.edu/etd/676.

MLA Handbook (7^th Edition):

Sears, Morgan M. “Calibrating the LaModel Program for Shallow Cover Multiple-Seam Mines.” 2013. Web. 10 Apr 2021.

Vancouver:

Sears MM. Calibrating the LaModel Program for Shallow Cover Multiple-Seam Mines. [Internet] [Doctoral dissertation]. West Virginia University; 2013. [cited 2021 Apr 10]. Available from: https://doi.org/10.33915/etd.676 ; https://researchrepository.wvu.edu/etd/676.

Council of Science Editors:

Sears MM. Calibrating the LaModel Program for Shallow Cover Multiple-Seam Mines. [Doctoral Dissertation]. West Virginia University; 2013. Available from: https://doi.org/10.33915/etd.676 ; https://researchrepository.wvu.edu/etd/676

West Virginia University

13. Cheng, Jianwei. Comprehensive and Integrated Model for Atmospheric Status in Sealed Underground Mine Areas.

Degree: PhD, Mining Engineering, 2012, West Virginia University

URL: https://doi.org/10.33915/etd.3611 ; https://researchrepository.wvu.edu/etd/3611

► Mine gas explosion is one of the most feared hazards in the coal industry worldwide. More often one gas explosion related accident can cause the… (more)

▼ Mine gas explosion is one of the most feared hazards in the coal industry worldwide. More often one gas explosion related accident can cause the death of multiple coal miners. Since the beginning of coal mining, numerous mine workers have lost their lives as a result of gas explosions. Such occurrences have long been a major concern for mining engineers. Examination of two coal mine disasters (Sago mine and UBB mine) that have occurred in the U.S. in recent years reveals that all explosions originated from or around the sealed areas. Therefore, a good understanding of the atmospheric status in a sealed coal mine area is crucial in preventing and reducing accidents associated with mine combustible gases and also for planning and implementing a mine rescue strategy. Due to the lack of comprehensive research carried out so far in this area, this dissertation work seeks to contribute to understanding the behavior of a coal mine sealed volume and improving safety in coal mines. The following improvements have been made in this research:;• Important influential factors to control the mine atmospheric compositions has been investigated and analyzed. They are: (1) effect of the barometric pressure change; (2) effect of coal mine seals; and (3) categories of gases making up the sealed atmosphere and their changing characteristics.;• Based on the principle of mass conservation and the ideal gas law, a stepwise dynamic mathematical model that uses the control volume approach to simulate the sealed mine atmospheric gas species changes over time has been developed. All the above mentioned influential factors have been incorporated into the mathematical model.;• A modified Coward explosibility diagram method is proposed to analyze the explosive mine atmosphere. The improvements include: (1) expanding the original Coward diagram; (2) corrections of flammable limits; (3) redefining the nose limit for each combustible gas; (4) developing an equation to predict the excess amount of inert gas for each combustible gas; and (5) introducing the concept of explosibility Safety Factor (SF) which improves the Coward diagram's further applications.;In order to facilitate these researches findings and improvements, a new software program, CIMMAS (Comprehensive and Integrated Model for Mine Atmospheric Status), has been developed. The program is coded using an object-oriented programming (OOP) language, Visual Basic 6.0. It offers friendly graphical user interfaces with schematic views and allows users to reduce input works and understand the program outputs. Advisors/Committee Members: Yi Luo..

Subjects/Keywords: Mining engineering

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APA (6^th Edition):

Cheng, J. (2012). Comprehensive and Integrated Model for Atmospheric Status in Sealed Underground Mine Areas. (Doctoral Dissertation). West Virginia University. Retrieved from https://doi.org/10.33915/etd.3611 ; https://researchrepository.wvu.edu/etd/3611

Chicago Manual of Style (16^th Edition):

Cheng, Jianwei. “Comprehensive and Integrated Model for Atmospheric Status in Sealed Underground Mine Areas.” 2012. Doctoral Dissertation, West Virginia University. Accessed April 10, 2021. https://doi.org/10.33915/etd.3611 ; https://researchrepository.wvu.edu/etd/3611.

MLA Handbook (7^th Edition):

Cheng, Jianwei. “Comprehensive and Integrated Model for Atmospheric Status in Sealed Underground Mine Areas.” 2012. Web. 10 Apr 2021.

Vancouver:

Cheng J. Comprehensive and Integrated Model for Atmospheric Status in Sealed Underground Mine Areas. [Internet] [Doctoral dissertation]. West Virginia University; 2012. [cited 2021 Apr 10]. Available from: https://doi.org/10.33915/etd.3611 ; https://researchrepository.wvu.edu/etd/3611.

Council of Science Editors:

Cheng J. Comprehensive and Integrated Model for Atmospheric Status in Sealed Underground Mine Areas. [Doctoral Dissertation]. West Virginia University; 2012. Available from: https://doi.org/10.33915/etd.3611 ; https://researchrepository.wvu.edu/etd/3611

West Virginia University

14. Terrazas Prado, Patricio G. Truck Cycle and Delay Automated Data Collection System (TCD-ADCS) for Surface Coal Mining.

Degree: MS, Mining Engineering, 2012, West Virginia University

URL: https://doi.org/10.33915/etd.4930 ; https://researchrepository.wvu.edu/etd/4930

► Data management of production records has become a key element in surface coal mining operations. Information systems (IS) and information technologies (IT) can be used… (more)

Subjects/Keywords: Mining engineering

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APA (6^th Edition):

Terrazas Prado, P. G. (2012). Truck Cycle and Delay Automated Data Collection System (TCD-ADCS) for Surface Coal Mining. (Thesis). West Virginia University. Retrieved from https://doi.org/10.33915/etd.4930 ; https://researchrepository.wvu.edu/etd/4930

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Terrazas Prado, Patricio G. “Truck Cycle and Delay Automated Data Collection System (TCD-ADCS) for Surface Coal Mining.” 2012. Thesis, West Virginia University. Accessed April 10, 2021. https://doi.org/10.33915/etd.4930 ; https://researchrepository.wvu.edu/etd/4930.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Terrazas Prado, Patricio G. “Truck Cycle and Delay Automated Data Collection System (TCD-ADCS) for Surface Coal Mining.” 2012. Web. 10 Apr 2021.

Vancouver:

Terrazas Prado PG. Truck Cycle and Delay Automated Data Collection System (TCD-ADCS) for Surface Coal Mining. [Internet] [Thesis]. West Virginia University; 2012. [cited 2021 Apr 10]. Available from: https://doi.org/10.33915/etd.4930 ; https://researchrepository.wvu.edu/etd/4930.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Terrazas Prado PG. Truck Cycle and Delay Automated Data Collection System (TCD-ADCS) for Surface Coal Mining. [Thesis]. West Virginia University; 2012. Available from: https://doi.org/10.33915/etd.4930 ; https://researchrepository.wvu.edu/etd/4930

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

West Virginia University

15. Vukotic, Ivana M. Evaluation of Rope Shovel Operators in Surface Coal Mining Using a Multi-Attribute Decision-Making Model.

Degree: MS, Mining Engineering, 2013, West Virginia University

URL: https://doi.org/10.33915/etd.176 ; https://researchrepository.wvu.edu/etd/176

► Rope shovels are used to dig and load material in surface mines. One of the main factors that influence the productivity and energy consumption of… (more)

Subjects/Keywords: Mining engineering

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APA (6^th Edition):

Vukotic, I. M. (2013). Evaluation of Rope Shovel Operators in Surface Coal Mining Using a Multi-Attribute Decision-Making Model. (Thesis). West Virginia University. Retrieved from https://doi.org/10.33915/etd.176 ; https://researchrepository.wvu.edu/etd/176

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Vukotic, Ivana M. “Evaluation of Rope Shovel Operators in Surface Coal Mining Using a Multi-Attribute Decision-Making Model.” 2013. Thesis, West Virginia University. Accessed April 10, 2021. https://doi.org/10.33915/etd.176 ; https://researchrepository.wvu.edu/etd/176.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Vukotic, Ivana M. “Evaluation of Rope Shovel Operators in Surface Coal Mining Using a Multi-Attribute Decision-Making Model.” 2013. Web. 10 Apr 2021.

Vancouver:

Vukotic IM. Evaluation of Rope Shovel Operators in Surface Coal Mining Using a Multi-Attribute Decision-Making Model. [Internet] [Thesis]. West Virginia University; 2013. [cited 2021 Apr 10]. Available from: https://doi.org/10.33915/etd.176 ; https://researchrepository.wvu.edu/etd/176.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Vukotic IM. Evaluation of Rope Shovel Operators in Surface Coal Mining Using a Multi-Attribute Decision-Making Model. [Thesis]. West Virginia University; 2013. Available from: https://doi.org/10.33915/etd.176 ; https://researchrepository.wvu.edu/etd/176

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

West Virginia University

16. Prassetyo, Simon H. The influence of interface friction and w/h ratio on the violence of coal specimen failure.

Degree: MS, Mining Engineering, 2011, West Virginia University

URL: https://doi.org/10.33915/etd.2225 ; https://researchrepository.wvu.edu/etd/2225

► Violent failures of coal pillars, known in practice as coal mine bumps, have long been a subject of investigation. Many field investigations have considered geological… (more)

▼ Violent failures of coal pillars, known in practice as coal mine bumps, have long been a subject of investigation. Many field investigations have considered geological conditions that create high stress in the pillar as the main causative factor leading to bumps. In recent years, stress and constraint have been shown to be necessary in producing coal burst.;This research investigated the influence of interface friction and w/h ratio on the violence of coal specimen failure. In satisfying this objective, three violent failure parameters such as peak SPL, core zone failure, and ultimate stress were used to assess the violence of failure. The degree of the violence were investigated at three different interface frictions (high: mu = 0.40, medium: mu = 0.22, and low: mu = 0.13) and six w/h ratios (w/h = 3, 4, 6, 8, 12, and 16). The specimens were axially loaded in a universal testing machine equipped with a microphone to record sound pressure waves for peak SPL calculation. The failed specimens were also photographed after the failure for the measurement of core zones.;The violence of coal specimen failure was found to decrease with increasing w/h ratio and decreasing interface friction. In terms of peak SPL and ultimate stress, the influence of interface friction in reducing the violence was more significant for coal specimens at high w/h ratios than it was at low w/h ratios.;The high peak SPL region ≥ 124 dB was shown to be the most reliable parameter for assessing the violence of coal specimen failure, while the application of core zone failure depends on w/h ratio. Violent failure was also found to be independent of high ultimate stress. Stress merely contributes to the failure of the specimen, but it is the interface friction that greatly influences the degree of the violence.;There are four friction zones on the top end-surface of a coal specimen that may indicate the variation of confinement within the specimen. By the increase of w/h ratio, the zone of confinement was found to increase. Moreover, at the same interface friction, the increase of the confinement may also reduce the violence of failure.;Keywords: Coal specimen, violent failure, interface friction, w/h ratio, coal mine bumps, core zone, confinement. Advisors/Committee Members: Syd S. Peng..

Subjects/Keywords: Mining engineering

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APA (6^th Edition):

Prassetyo, S. H. (2011). The influence of interface friction and w/h ratio on the violence of coal specimen failure. (Thesis). West Virginia University. Retrieved from https://doi.org/10.33915/etd.2225 ; https://researchrepository.wvu.edu/etd/2225

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Prassetyo, Simon H. “The influence of interface friction and w/h ratio on the violence of coal specimen failure.” 2011. Thesis, West Virginia University. Accessed April 10, 2021. https://doi.org/10.33915/etd.2225 ; https://researchrepository.wvu.edu/etd/2225.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Prassetyo, Simon H. “The influence of interface friction and w/h ratio on the violence of coal specimen failure.” 2011. Web. 10 Apr 2021.

Vancouver:

Prassetyo SH. The influence of interface friction and w/h ratio on the violence of coal specimen failure. [Internet] [Thesis]. West Virginia University; 2011. [cited 2021 Apr 10]. Available from: https://doi.org/10.33915/etd.2225 ; https://researchrepository.wvu.edu/etd/2225.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Prassetyo SH. The influence of interface friction and w/h ratio on the violence of coal specimen failure. [Thesis]. West Virginia University; 2011. Available from: https://doi.org/10.33915/etd.2225 ; https://researchrepository.wvu.edu/etd/2225

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

West Virginia University

17. Verma, Priyesh. An experimental investigation of the creep behavior of an underground coalmine roof with shale formation.

Degree: MS, Mining Engineering, 2013, West Virginia University

URL: https://doi.org/10.33915/etd.677 ; https://researchrepository.wvu.edu/etd/677

► Stability of the roof in an underground coalmine is imperative for safe and efficient mining. Mining of the coal seam disturbs the natural equilibrium of… (more)

▼ Stability of the roof in an underground coalmine is imperative for safe and efficient mining. Mining of the coal seam disturbs the natural equilibrium of the in-situ stresses in the surrounding rock. Because of the opening, the surrounding stratum deforms to fill the opening and return to the pre-mining stress state. Such deformation, if allowed to continue, will lead to failure of the strata, which creates an unsafe work environment. Therefore, supports are used to reinforce the deforming strata and help prevent any further deformation in the rock.;However, various mines have reported failures in the supported entries (MSHA, 2013). These failures have been mostly called as "cutter-failure" (Peng, 2008) and are attributed to high horizontal stresses; however, surprisingly, another factor which is suspected to have an effect on such failure is the time-dependent deformation. Its effect on the roof fall activity is unknown and to the authors knowledge limited research has been reported on this subject. Additionally, organizations such as the ISRM (International Society of Rock Mechanics) and the ASTM (American Society for Testing and Materials) have not recommended any creep testing procedure. Therefore, the objective of this research was to investigate the time-dependent deformational behavior of immediate coal measures rock (shale) and then use phenomenological equations to fit the experimental data and produce input properties for numerical modeling.;Creep, or time-dependent, experiments were performed on shale and sandstone specimens under constant load and stress conditions. Both rock types showed development of creep strain; however, the shale specimens were more sensitive to the change in the stress conditions. Under uniaxial stress conditions, the specimens showed an increase in the creep strain as the stress increased. In triaxial conditions, the creep strain increased with an increase in the deviatoric stress conditions. It is believed that this research will provide some preliminary information on the time-dependent behavior of shale. Advisors/Committee Members: Brijes Mishra, Keith A. Heasley, Yi Luo.

Subjects/Keywords: Mining engineering

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APA (6^th Edition):

Verma, P. (2013). An experimental investigation of the creep behavior of an underground coalmine roof with shale formation. (Thesis). West Virginia University. Retrieved from https://doi.org/10.33915/etd.677 ; https://researchrepository.wvu.edu/etd/677

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Verma, Priyesh. “An experimental investigation of the creep behavior of an underground coalmine roof with shale formation.” 2013. Thesis, West Virginia University. Accessed April 10, 2021. https://doi.org/10.33915/etd.677 ; https://researchrepository.wvu.edu/etd/677.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Verma, Priyesh. “An experimental investigation of the creep behavior of an underground coalmine roof with shale formation.” 2013. Web. 10 Apr 2021.

Vancouver:

Verma P. An experimental investigation of the creep behavior of an underground coalmine roof with shale formation. [Internet] [Thesis]. West Virginia University; 2013. [cited 2021 Apr 10]. Available from: https://doi.org/10.33915/etd.677 ; https://researchrepository.wvu.edu/etd/677.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Verma P. An experimental investigation of the creep behavior of an underground coalmine roof with shale formation. [Thesis]. West Virginia University; 2013. Available from: https://doi.org/10.33915/etd.677 ; https://researchrepository.wvu.edu/etd/677

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

West Virginia University

18. Sindelar, Mark F. The Integration of a Coal Mine Emergency Communication Network into Pre-Mine Planning and Development.

Degree: MS, Mining Engineering, 2013, West Virginia University

URL: https://doi.org/10.33915/etd.174 ; https://researchrepository.wvu.edu/etd/174

► Regulations, such as the MINER Act of 2006, require the installation of redundant and secondary communication systems to assure that contact can be established with… (more)

Subjects/Keywords: Mining engineering

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APA (6^th Edition):

Sindelar, M. F. (2013). The Integration of a Coal Mine Emergency Communication Network into Pre-Mine Planning and Development. (Thesis). West Virginia University. Retrieved from https://doi.org/10.33915/etd.174 ; https://researchrepository.wvu.edu/etd/174

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Sindelar, Mark F. “The Integration of a Coal Mine Emergency Communication Network into Pre-Mine Planning and Development.” 2013. Thesis, West Virginia University. Accessed April 10, 2021. https://doi.org/10.33915/etd.174 ; https://researchrepository.wvu.edu/etd/174.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Sindelar, Mark F. “The Integration of a Coal Mine Emergency Communication Network into Pre-Mine Planning and Development.” 2013. Web. 10 Apr 2021.

Vancouver:

Sindelar MF. The Integration of a Coal Mine Emergency Communication Network into Pre-Mine Planning and Development. [Internet] [Thesis]. West Virginia University; 2013. [cited 2021 Apr 10]. Available from: https://doi.org/10.33915/etd.174 ; https://researchrepository.wvu.edu/etd/174.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Sindelar MF. The Integration of a Coal Mine Emergency Communication Network into Pre-Mine Planning and Development. [Thesis]. West Virginia University; 2013. Available from: https://doi.org/10.33915/etd.174 ; https://researchrepository.wvu.edu/etd/174

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

West Virginia University

19. Chen, Jinxiang. Column Flotation of Subbituminous Coal Using the Blend of Trimethyl Pentanediol Derivatives and Pico-Nano Bubbles.

Degree: MS, Mining Engineering, 2013, West Virginia University

URL: https://doi.org/10.33915/etd.3384 ; https://researchrepository.wvu.edu/etd/3384

► Subbituminous coal, a low rank of coal, is difficult-to-float using the conventional flotation process by a single frother such as MIBC and a single collector… (more)

Subjects/Keywords: Mining engineering

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APA (6^th Edition):

Chen, J. (2013). Column Flotation of Subbituminous Coal Using the Blend of Trimethyl Pentanediol Derivatives and Pico-Nano Bubbles. (Thesis). West Virginia University. Retrieved from https://doi.org/10.33915/etd.3384 ; https://researchrepository.wvu.edu/etd/3384

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Chen, Jinxiang. “Column Flotation of Subbituminous Coal Using the Blend of Trimethyl Pentanediol Derivatives and Pico-Nano Bubbles.” 2013. Thesis, West Virginia University. Accessed April 10, 2021. https://doi.org/10.33915/etd.3384 ; https://researchrepository.wvu.edu/etd/3384.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Chen, Jinxiang. “Column Flotation of Subbituminous Coal Using the Blend of Trimethyl Pentanediol Derivatives and Pico-Nano Bubbles.” 2013. Web. 10 Apr 2021.

Vancouver:

Chen J. Column Flotation of Subbituminous Coal Using the Blend of Trimethyl Pentanediol Derivatives and Pico-Nano Bubbles. [Internet] [Thesis]. West Virginia University; 2013. [cited 2021 Apr 10]. Available from: https://doi.org/10.33915/etd.3384 ; https://researchrepository.wvu.edu/etd/3384.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Chen J. Column Flotation of Subbituminous Coal Using the Blend of Trimethyl Pentanediol Derivatives and Pico-Nano Bubbles. [Thesis]. West Virginia University; 2013. Available from: https://doi.org/10.33915/etd.3384 ; https://researchrepository.wvu.edu/etd/3384

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Waikato

20. Rae, Steven Michael. Sustainability Reporting in the Mining Industry .

Degree: 2016, University of Waikato

URL: http://hdl.handle.net/10289/10870

► The purpose of this thesis was to examine the sustainability reporting of global mining companies. A review of prior literature indicated that sustainability has grown… (more)

▼ The purpose of this thesis was to examine the sustainability reporting of global mining companies. A review of prior literature indicated that sustainability has grown as a concept of interest in recent decades. Early studies concentrated on the characteristics of organisations producing sustainability reports and proffered different theories explaining why these reports are produced. While more recent research has focused on sustainability in the mining sector, no prior study had looked at the content of the sustainability reports of multiple mining organisations. This study, therefore, provides greater understanding of the concepts and themes used within mining companies’ sustainability reports. The study data drew on 104 electronically available sustainability reports collected from 32 mining companies covering the period 2010 to 2013. The mining companies were further classified according to their International Council on Mining and Minerals (ICMM) membership status. A content and thematic analysis was conducted using Leximancer software, a computer textual analysis program. The software analysed the data and produced concept findings, key themes, and concept maps from it. The findings showed that the most frequently used concepts across all the sustainability reports were community, employees, local, production, and safety. At 27,727 interactions, the concept of community had the greatest number of interactions with other concepts. When the number of interactions was divided by the concept count, education was seen to have the highest number of interactions per concept appearance, followed by power, consumption, coal, and employment. The theme findings identified five theme groups: Community, Safety, Production, Water, and Employees. The summarised findings for the individual companies revealed variation across the different companies. The count percentage of the second most frequent concept, compared to the most frequent, ranged from 99% to 49%. The third most frequent concept’s average relevance score ranged from 97% 38%. When limiting the individual companies to their 5 most frequent concepts, 29 concepts were found to be in use across the 32 different companies. The most common concepts to rank in the top 5 overall were operations, ‘company name’, management, development, and mine. The findings revealed 65 concepts across the 4 investigated years; 22 of these concepts were found to be common concepts. The study identified 17 top 10 ranked concepts for the 4-year period; however, 4 of these ranked consistently in the top 10. These were community, production, report, and local. The findings for the three different ICMM member categories revealed 19 concepts that ranked in the top 40 across all categories. The concepts of community, employees, report, production, and local all had an average rank inside the top 10, regardless of ICMM membership. This study provided greater insight into the sustainability reporting practices of leading global mining companies. The findings revealed the concepts and… Advisors/Committee Members: Samkin, Grant (advisor).

Subjects/Keywords: Sustainability; Mining

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APA (6^th Edition):

Rae, S. M. (2016). Sustainability Reporting in the Mining Industry . (Masters Thesis). University of Waikato. Retrieved from http://hdl.handle.net/10289/10870

Chicago Manual of Style (16^th Edition):

Rae, Steven Michael. “Sustainability Reporting in the Mining Industry .” 2016. Masters Thesis, University of Waikato. Accessed April 10, 2021. http://hdl.handle.net/10289/10870.

MLA Handbook (7^th Edition):

Rae, Steven Michael. “Sustainability Reporting in the Mining Industry .” 2016. Web. 10 Apr 2021.

Vancouver:

Rae SM. Sustainability Reporting in the Mining Industry . [Internet] [Masters thesis]. University of Waikato; 2016. [cited 2021 Apr 10]. Available from: http://hdl.handle.net/10289/10870.

Council of Science Editors:

Rae SM. Sustainability Reporting in the Mining Industry . [Masters Thesis]. University of Waikato; 2016. Available from: http://hdl.handle.net/10289/10870

Queensland University of Technology

21. Shen, Yan. Personalized ontology learning for enhancing text mining effectiveness.

Degree: 2013, Queensland University of Technology

URL: https://eprints.qut.edu.au/63699/

► Over the last decade, the majority of existing search techniques is either keyword- based or category-based, resulting in unsatisfactory effectiveness. Meanwhile, studies have illustrated that… (more)

▼ Over the last decade, the majority of existing search techniques is either keyword- based or category-based, resulting in unsatisfactory effectiveness. Meanwhile, studies have illustrated that more than 80% of users preferred personalized search results. As a result, many studies paid a great deal of efforts (referred to as col- laborative filtering) investigating on personalized notions for enhancing retrieval performance. One of the fundamental yet most challenging steps is to capture precise user information needs. Most Web users are inexperienced or lack the capability to express their needs properly, whereas the existent retrieval systems are highly sensitive to vocabulary. Researchers have increasingly proposed the utilization of ontology-based tech- niques to improve current mining approaches. The related techniques are not only able to refine search intentions among specific generic domains, but also to access new knowledge by tracking semantic relations. In recent years, some researchers have attempted to build ontological user profiles according to discovered user background knowledge. The knowledge is considered to be both global and lo- cal analyses, which aim to produce tailored ontologies by a group of concepts. However, a key problem here that has not been addressed is: how to accurately match diverse local information to universal global knowledge. This research conducts a theoretical study on the use of personalized ontolo- gies to enhance text mining performance. The objective is to understand user information needs by a \bag-of-concepts" rather than \words". The concepts are gathered from a general world knowledge base named the Library of Congress Subject Headings. To return desirable search results, a novel ontology-based mining approach is introduced to discover accurate search intentions and learn personalized ontologies as user profiles. The approach can not only pinpoint users' individual intentions in a rough hierarchical structure, but can also in- terpret their needs by a set of acknowledged concepts. Along with global and local analyses, another solid concept matching approach is carried out to address about the mismatch between local information and world knowledge. Relevance features produced by the Relevance Feature Discovery model, are determined as representatives of local information. These features have been proven as the best alternative for user queries to avoid ambiguity and consistently outperform the features extracted by other filtering models. The two attempt-to-proposed ap- proaches are both evaluated by a scientific evaluation with the standard Reuters Corpus Volume 1 testing set. A comprehensive comparison is made with a num- ber of the state-of-the art baseline models, including TF-IDF, Rocchio, Okapi BM25, the deploying Pattern Taxonomy Model, and an ontology-based model. The gathered results indicate that the top precision can be improved remarkably with the proposed ontology mining approach, where the matching approach is successful and achieves…

Subjects/Keywords: text mining

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APA (6^th Edition):

Shen, Y. (2013). Personalized ontology learning for enhancing text mining effectiveness. (Thesis). Queensland University of Technology. Retrieved from https://eprints.qut.edu.au/63699/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Shen, Yan. “Personalized ontology learning for enhancing text mining effectiveness.” 2013. Thesis, Queensland University of Technology. Accessed April 10, 2021. https://eprints.qut.edu.au/63699/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Shen, Yan. “Personalized ontology learning for enhancing text mining effectiveness.” 2013. Web. 10 Apr 2021.

Vancouver:

Shen Y. Personalized ontology learning for enhancing text mining effectiveness. [Internet] [Thesis]. Queensland University of Technology; 2013. [cited 2021 Apr 10]. Available from: https://eprints.qut.edu.au/63699/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Shen Y. Personalized ontology learning for enhancing text mining effectiveness. [Thesis]. Queensland University of Technology; 2013. Available from: https://eprints.qut.edu.au/63699/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Zambia

22. Dembetembe, Gift G. Nchanga open pit fleet optimization for productivity improvement .

Degree: 2017, University of Zambia

URL: http://dspace.unza.zm:8080/xmlui/handle/123456789/4684

► Nchanga Open Pit (NOP) is facing a critical equipment planning decision after undertaking improvement projects at the processing plant namely Elevated Temperature Leaching, Heap Leaching… (more)

▼ Nchanga Open Pit (NOP) is facing a critical equipment planning decision after undertaking improvement projects at the processing plant namely Elevated Temperature Leaching, Heap Leaching and Cobalt/Copper separation. Elevated Temperature Leaching has resulted in 20% increase in the recovery of copper while cobalt/copper separation is anticipated to bring 77.5% increase in the value of the final product. The improvements at the processing plant have subsequently led to extension of life of mine to 4 years. As a result of the above, all upstream components of the value chain have to be harmonized with these improvements in order to maintain productivity at optimum level and curb loss of value. Currently, NOP is faced with a critical equipment planning decision where the current ore handling fleet has to be either re-capitalized or apportioned to exploit new mining areas. Therefore this study was undertaken in order to optimize the fleet in terms of both size and performance. In order to achieve the stated objective, production planning, fleet optimization and fleet management were reviewed and analyzed based on generic formulas, match factor theory, Overall Equipment Effectiveness (OEE) and queuing theory while analysis of fleet performance and simulation was done by using Talpac software. Results of study indicated that NOP needs to invest in machinery by either re-capitalizing the current fleet or resorting to a more cost effective fleet management approach. Fleet optimization at NOP had six interacting factors which have attributed to low fleet performance. These factors are low machine availability, low machine utilization, mismatch between loaders and truck fleet sizes, double handling of ore, costly dust suppression system and flawed maintenance system. Furthermore, based on fleet deterioration, assessment of fleet performance using OEE showed low Overall Equipment Effectiveness of 7.2% for shovels, 13.6% for large excavators and 17.6% for trucks against a score of 85%. The study has also established that the number of trucks needs to be increased from 15 to 28 if the current haulage system has to be maintained or alternatively use the conveyor belt system. However, to do this, a reliability and maintainability analysis has to be done which is beyond the scope of this study.

Subjects/Keywords: Mining engineering

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APA (6^th Edition):

Dembetembe, G. G. (2017). Nchanga open pit fleet optimization for productivity improvement . (Thesis). University of Zambia. Retrieved from http://dspace.unza.zm:8080/xmlui/handle/123456789/4684

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Dembetembe, Gift G. “Nchanga open pit fleet optimization for productivity improvement .” 2017. Thesis, University of Zambia. Accessed April 10, 2021. http://dspace.unza.zm:8080/xmlui/handle/123456789/4684.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Dembetembe, Gift G. “Nchanga open pit fleet optimization for productivity improvement .” 2017. Web. 10 Apr 2021.

Vancouver:

Dembetembe GG. Nchanga open pit fleet optimization for productivity improvement . [Internet] [Thesis]. University of Zambia; 2017. [cited 2021 Apr 10]. Available from: http://dspace.unza.zm:8080/xmlui/handle/123456789/4684.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Dembetembe GG. Nchanga open pit fleet optimization for productivity improvement . [Thesis]. University of Zambia; 2017. Available from: http://dspace.unza.zm:8080/xmlui/handle/123456789/4684

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

23. Mutambo, Webby. A geotechnical review and considerations in the design of a new mining method at Konkola Mine.

Degree: 2014, University of Zimbabwe

URL: http://dspace.unza.zm/handle/123456789/3189

► Konkola Mine of Konkola Copper Mines Plc comprises of Number 1 and 3 Shafts located on the northern most part of the Zambian Copperbelt. The… (more)

▼ Konkola Mine of Konkola Copper Mines Plc comprises of Number 1 and 3 Shafts located on the northern most part of the Zambian Copperbelt. The mining licence area is characterised by the Kirilabombwe anticline dividing the West and North Limbs striking generally in the northwest to southeast directions. Average dip angles are 60in the Central region, very flat (about 10) towards the „nose‟ area and 60in the North. The Number 1 Shaft is located in southern part of the ore body and lies between 0mN to 3000mN survey mark positions and extends to 800mS. The current development is below 3150 feet level. The Number 3 Shaft is located on the North Limb and the lowest tramming level is at 1850 feet level. Production is currently below the 2270 feet level.As mining is focused below 2270 feet level at Number 3 Shaft and below 3150 feet at Number 1 Shaft, there is need to determine a suitable mining method. This must take into consideration the geotechnical parameters of the host rock and the ore body especially in the nose area where several mining methods have been applied. The dip and the depth from surface influenced the selection of a suitable mining method.This research involved collection of scan line mapped data. The data collected includes joint spacing, joint orientation, joint condition and rock samples to determine the uni-axial compressive strength. The collection of data at the mine site was done in two parts: the first part involved collection of the existing mapped data while the second part involved underground mapping. The collected data was analysed using a computer based spreadsheet to determine the rock mass rating and the information was subjected to evaluation using specialised geotechnical Phase2D software.A review of the design and implementation of the proposed mining method has been made with the aid of a computer model using Phase2D. Ground support requirements for the mining method have also been defined. This selected mining method has been analysed based on the productivity and safe extraction way of taking out the ore body in the nose area of Konkola. The results show the options that involve mining of primary and secondary stopes with different stope spans and will require cemented backfill in primary stopes.

Subjects/Keywords: Mining Engineering

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APA (6^th Edition):

Mutambo, W. (2014). A geotechnical review and considerations in the design of a new mining method at Konkola Mine. (Thesis). University of Zimbabwe. Retrieved from http://dspace.unza.zm/handle/123456789/3189

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mutambo, Webby. “A geotechnical review and considerations in the design of a new mining method at Konkola Mine.” 2014. Thesis, University of Zimbabwe. Accessed April 10, 2021. http://dspace.unza.zm/handle/123456789/3189.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mutambo, Webby. “A geotechnical review and considerations in the design of a new mining method at Konkola Mine.” 2014. Web. 10 Apr 2021.

Vancouver:

Mutambo W. A geotechnical review and considerations in the design of a new mining method at Konkola Mine. [Internet] [Thesis]. University of Zimbabwe; 2014. [cited 2021 Apr 10]. Available from: http://dspace.unza.zm/handle/123456789/3189.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mutambo W. A geotechnical review and considerations in the design of a new mining method at Konkola Mine. [Thesis]. University of Zimbabwe; 2014. Available from: http://dspace.unza.zm/handle/123456789/3189

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

24. Kangwa, Sam. Economic consequences of hole deviations in mining operations.

Degree: 2011, University of Zimbabwe

URL: http://dspace.unza.zm/handle/123456789/664

► In hard rock mining, drilling and blasting still remain the main method of fragmenting rock. In mining methods involving the use of long holes, extra… (more)

▼ In hard rock mining, drilling and blasting still remain the main method of fragmenting rock. In mining methods involving the use of long holes, extra costs are incurred as a result of consequences associated with hole deviations.The consequences include build-ups, hang-ups and poor rock fragmentation.These consequences usually lead to extra drilling, loss of drill strings, ore dilution, ore loss, increased explosive consumption, time wastage and delays in the chain of production operations, accelerated wear of equipment, extra crushing, extra mineral dressing work, and increased labour costs.Many studies do exist on hole deviations. Whereas sources and effects of the deviations have been investigated, no work has been done on quantification of extra costs due to hole deviations. The objectives, therefore, of this study were to identify consequences associated with hole deviations in mining operations and to quantify the consequences in economic terms. For the study to be meaningful, it was decided to carry out a field investigation at an operating mine. The investigation was carried out at South ore-body shaft of Zambia Consolidated Copper Mines, Nkana Division. Nkana Division operates an underground mine and produces copper and cobalt.The detailed studies of hole deviations and their consequences involved two selected operations, namely stope drilling and raiseboring of Vertical Crater Retreat (VCR) mining method. The studies involved examination of drilling plans, observation of drilling operations, measurement of hole deviations, observation of blasting activities, examination of fragmentation and handling of ore. The studies showed that almost all the holes observed had some degree of deviation. The linear deviation ranged from 0.2m to 12.0m for hole lengths of 30m to 105m. It was subsequently established that there is a strong link between hole deviations and many problems faced in the chain of mining operations.The consequences were identified and correspondingly quantified in economic terms. The cost estimations were done using both rudimental and computer aided calculations. From the estimates, the VCR stope studied accrued approximately US274,000 extra cost, representing 62% of the total operational cost, while the raise pilot hole accrued approximately US6,000 extra cost representing 44% of the total operational cost. These extra costs were as a result of hole deviations.These results clearly show that hole deviations have a significant negative effect on the mining operations and that they lead to poor mining economy.If the quality of production and service holes can be improved, a saving of up to 70% may be achieved in the VCR stope. For an underground mine such as Nkana Division, it may become possible for the mine to compete favourably with other underground and surface mines. For this to be achieved, it is recommended that management should:a) Set up a steering group to look into minimising hole deviations b) Rehabilitate or purchase drilling machines and accessories to improve machine…

Subjects/Keywords: Mining engineering

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APA (6^th Edition):

Kangwa, S. (2011). Economic consequences of hole deviations in mining operations. (Thesis). University of Zimbabwe. Retrieved from http://dspace.unza.zm/handle/123456789/664

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Kangwa, Sam. “Economic consequences of hole deviations in mining operations.” 2011. Thesis, University of Zimbabwe. Accessed April 10, 2021. http://dspace.unza.zm/handle/123456789/664.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Kangwa, Sam. “Economic consequences of hole deviations in mining operations.” 2011. Web. 10 Apr 2021.

Vancouver:

Kangwa S. Economic consequences of hole deviations in mining operations. [Internet] [Thesis]. University of Zimbabwe; 2011. [cited 2021 Apr 10]. Available from: http://dspace.unza.zm/handle/123456789/664.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kangwa S. Economic consequences of hole deviations in mining operations. [Thesis]. University of Zimbabwe; 2011. Available from: http://dspace.unza.zm/handle/123456789/664

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Manchester

25. Childs, John. Fair Trade Gold: A New Way of Governing Artisanal and Small-Scale Mining in Tanzania?.

Degree: 2012, University of Manchester

URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:145211

► Alongside exponential rises in global prices for gold, there has been a concurrent rise in the geographical scope of the artisanal and small-scale mining (ASM)… (more)

▼ Alongside exponential rises in global prices for gold, there has been a concurrent rise in the geographical scope of the artisanal and small-scale mining (ASM) sector. This poverty-driven activity has been associated with elevated levels of environmental degradation, a high degree of informality, poor health and safety practices and below market prices for their gold. Despite these putatively conceived problems, there has been a historical and widespread failure by policy makers to significantly improve thesocio-economic and environmental conditions facing ASM’s operators. Recently, however, there has been a noticeable shift in the ways in which the governance of the sector is enacted. This thesis critically analyses the emergence of one such example, namely the Fairtrade Labelling Organistion and the Alliance for Responsible Mining’s dual launch of ‘Fairtrade’ and ‘Fairmined’ (FT/FM) certified gold. Inspired by the past successes for the movement in a range of agrifood products and grounded in the discourse of ‘fairness’, its application to ASM promises better prices in exchange for the fulfilment of standards relating to environmental stewardship,a commitment to democratic structures and responsible mining practices. Following the experiences of Fairtrade gold in nine pilot projects in Latin America, its expansion into gold producing countries in sub-Saharan African countries seems inevitable. However, there has been a lack of academic research into its efficacy, a gap that this thesis fills by examining the potential of both the discursive and material ways that Fairtrade and Fairmined gold may operate in Tanzania. It is revealed that ASM operators are negatively represented by conventional thinking as variously criminal, irresponsible and irrational. Against this background, it is argued that the intervention of FT/FM gold can be read through an environmental and social justice framework, one that presents a counter-narrative of ASM as a valued livelihood strategy marked by environmental responsibility. The struggles for greater recognition and more equitable distribution for ASM operators are premised, most critically on a movetowards a new, ‘fair’ way of mining. Building upon a critical examination of the politics of these discursiveconstructs, the thesis presents a critical examination of ‘fairness’ in practice through a case study. Indeed, a private company, African Precious Metals (APM), has constructed four ‘Fair Trade Gold Centres’ that offer ASM operators in the Mwanza and Shinyanga regions of Tanzania a new means of selling gold. Ideologically separate to the FT/FM model outlined above, their presence in local marketing arrangements for ASM gold has served to obscure the way that ‘fairness’ is conceptualised by ASM operators in the area. Moreover, their substantive failure in policy terms, allied to their close rhetorical association with FT/FM, has served to damage the moral ballast of ‘fairness’ found in the ‘Fairtrade’ gold discourse.Through the critical analysis of life histories narrated by ASM… Advisors/Committee Members: Chimhowu, Admos.

Subjects/Keywords: Fairtrade; Mining

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APA (6^th Edition):

Childs, J. (2012). Fair Trade Gold: A New Way of Governing Artisanal and Small-Scale Mining in Tanzania?. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:145211

Chicago Manual of Style (16^th Edition):

Childs, John. “Fair Trade Gold: A New Way of Governing Artisanal and Small-Scale Mining in Tanzania?.” 2012. Doctoral Dissertation, University of Manchester. Accessed April 10, 2021. http://www.manchester.ac.uk/escholar/uk-ac-man-scw:145211.

MLA Handbook (7^th Edition):

Childs, John. “Fair Trade Gold: A New Way of Governing Artisanal and Small-Scale Mining in Tanzania?.” 2012. Web. 10 Apr 2021.

Vancouver:

Childs J. Fair Trade Gold: A New Way of Governing Artisanal and Small-Scale Mining in Tanzania?. [Internet] [Doctoral dissertation]. University of Manchester; 2012. [cited 2021 Apr 10]. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:145211.

Council of Science Editors:

Childs J. Fair Trade Gold: A New Way of Governing Artisanal and Small-Scale Mining in Tanzania?. [Doctoral Dissertation]. University of Manchester; 2012. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:145211

Central Connecticut State University

26. Adu-Poku, Sampson, 1961-. Comparing classification algorithms in data mining.

Degree: Department of Mathematical Sciences, 2012, Central Connecticut State University

URL: http://content.library.ccsu.edu/u?/ccsutheses,1768

► In this thesis, support vector machines, neural networks, logistic regression, naïve Bayes, classification and regression trees, the C5.0 algorithms, QUEST, CHAID and discriminant analysis have… (more)

Subjects/Keywords: Data mining

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APA (6^th Edition):

Adu-Poku, Sampson, 1. (2012). Comparing classification algorithms in data mining. (Thesis). Central Connecticut State University. Retrieved from http://content.library.ccsu.edu/u?/ccsutheses,1768

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Adu-Poku, Sampson, 1961-. “Comparing classification algorithms in data mining.” 2012. Thesis, Central Connecticut State University. Accessed April 10, 2021. http://content.library.ccsu.edu/u?/ccsutheses,1768.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Adu-Poku, Sampson, 1961-. “Comparing classification algorithms in data mining.” 2012. Web. 10 Apr 2021.

Vancouver:

Adu-Poku, Sampson 1. Comparing classification algorithms in data mining. [Internet] [Thesis]. Central Connecticut State University; 2012. [cited 2021 Apr 10]. Available from: http://content.library.ccsu.edu/u?/ccsutheses,1768.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Adu-Poku, Sampson 1. Comparing classification algorithms in data mining. [Thesis]. Central Connecticut State University; 2012. Available from: http://content.library.ccsu.edu/u?/ccsutheses,1768

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

27. Yu, Jialiang. Fast and scalable MapReduce-based vertical mining.

Degree: Computer Science, 2018, University of Manitoba

URL: http://hdl.handle.net/1993/33337

► Mining uncertain data is challenging because uncertainty is usually represented as real numbers which are in infinite (cf. representing infinite occurrence counts when mining precise… (more)

Subjects/Keywords: data mining

8 more images…

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APA (6^th Edition):

Yu, J. (2018). Fast and scalable MapReduce-based vertical mining. (Masters Thesis). University of Manitoba. Retrieved from http://hdl.handle.net/1993/33337

Chicago Manual of Style (16^th Edition):

Yu, Jialiang. “Fast and scalable MapReduce-based vertical mining.” 2018. Masters Thesis, University of Manitoba. Accessed April 10, 2021. http://hdl.handle.net/1993/33337.

MLA Handbook (7^th Edition):

Yu, Jialiang. “Fast and scalable MapReduce-based vertical mining.” 2018. Web. 10 Apr 2021.

Vancouver:

Yu J. Fast and scalable MapReduce-based vertical mining. [Internet] [Masters thesis]. University of Manitoba; 2018. [cited 2021 Apr 10]. Available from: http://hdl.handle.net/1993/33337.

Council of Science Editors:

Yu J. Fast and scalable MapReduce-based vertical mining. [Masters Thesis]. University of Manitoba; 2018. Available from: http://hdl.handle.net/1993/33337

Michigan Technological University

28. Smith, Jessica. LARGE SCALE LANDSLIDE ON THE ONTONAGON RIVER, MICHIGAN.

Degree: MS, Department of Geological and Mining Engineering and Sciences, 2012, Michigan Technological University

URL: https://digitalcommons.mtu.edu/etd-restricted/146

► In 2003, a large landslide occurred along the Ontonagon River, located in the Upper Peninsula of Michigan, and adjacent to US-45 in Ontonagon County.… (more)

Subjects/Keywords: Mining Engineering

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APA (6^th Edition):

Smith, J. (2012). LARGE SCALE LANDSLIDE ON THE ONTONAGON RIVER, MICHIGAN. (Masters Thesis). Michigan Technological University. Retrieved from https://digitalcommons.mtu.edu/etd-restricted/146

Chicago Manual of Style (16^th Edition):

Smith, Jessica. “LARGE SCALE LANDSLIDE ON THE ONTONAGON RIVER, MICHIGAN.” 2012. Masters Thesis, Michigan Technological University. Accessed April 10, 2021. https://digitalcommons.mtu.edu/etd-restricted/146.

MLA Handbook (7^th Edition):

Smith, Jessica. “LARGE SCALE LANDSLIDE ON THE ONTONAGON RIVER, MICHIGAN.” 2012. Web. 10 Apr 2021.

Vancouver:

Smith J. LARGE SCALE LANDSLIDE ON THE ONTONAGON RIVER, MICHIGAN. [Internet] [Masters thesis]. Michigan Technological University; 2012. [cited 2021 Apr 10]. Available from: https://digitalcommons.mtu.edu/etd-restricted/146.

Council of Science Editors:

Smith J. LARGE SCALE LANDSLIDE ON THE ONTONAGON RIVER, MICHIGAN. [Masters Thesis]. Michigan Technological University; 2012. Available from: https://digitalcommons.mtu.edu/etd-restricted/146

Queens University

29. Abdeljalil, Muhanad. A Critical Review of the Inputs to Long Range Mine Planning of Open Pit Porphyry Type Copper Deposits .

Degree: Mining Engineering, 2013, Queens University

URL: http://hdl.handle.net/1974/8005

► Long term planning is the process used by a mining organization to develop a strategic business plan. The plan describes how the ore is going… (more)

Subjects/Keywords: Mining Engineering

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APA (6^th Edition):

Abdeljalil, M. (2013). A Critical Review of the Inputs to Long Range Mine Planning of Open Pit Porphyry Type Copper Deposits . (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/8005

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Abdeljalil, Muhanad. “A Critical Review of the Inputs to Long Range Mine Planning of Open Pit Porphyry Type Copper Deposits .” 2013. Thesis, Queens University. Accessed April 10, 2021. http://hdl.handle.net/1974/8005.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Abdeljalil, Muhanad. “A Critical Review of the Inputs to Long Range Mine Planning of Open Pit Porphyry Type Copper Deposits .” 2013. Web. 10 Apr 2021.

Vancouver:

Abdeljalil M. A Critical Review of the Inputs to Long Range Mine Planning of Open Pit Porphyry Type Copper Deposits . [Internet] [Thesis]. Queens University; 2013. [cited 2021 Apr 10]. Available from: http://hdl.handle.net/1974/8005.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Abdeljalil M. A Critical Review of the Inputs to Long Range Mine Planning of Open Pit Porphyry Type Copper Deposits . [Thesis]. Queens University; 2013. Available from: http://hdl.handle.net/1974/8005

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

McGill University

30. Sari, Yuksel Asli. Mine production scheduling through Heuristic memory based, improved simulated annealing.

Degree: M. Eng., Department of Mining and Materials, 2015, McGill University

URL: https://escholarship.mcgill.ca/downloads/6w924f71j.pdf ; https://escholarship.mcgill.ca/concern/theses/ht24wn345

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Because of high value added potential, mine production scheduling has been an attractive topic in mining engineering area for 50 years. Mine production scheduling is… (more)

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Because of high value added potential, mine production scheduling has been an attractive topic in mining engineering area for 50 years. Mine production scheduling is essentially a set of problems: block sequencing, ore-waste discrimination and production rates. Previously the machine learning technique Simulated Annealing (SA) was usedBecause of high value added potential, mine production scheduling has been an attractive topic in mining engineering area for 50 years. Mine production scheduling is essentially a set of problems: block sequencing, ore-waste discrimination and production rates. Previously the machine learning technique Simulated Annealing (SA) was usedto solve the classic mine production scheduling problem together with Lerchs-Grossman method. We are taking this approach one step forward to solve poly-metallic, multiple process destinations and multiple rock types mine production scheduling problem using the equivalent grade factors. A transportation penalty approach was taken to smooth the fluctuating structure that emerges as a result of SA's nature and to unify the same periods to decrease transportation costs. Moreover, a novel, heuristic memory based SA technique is proposed, where a foreseen variable is nominated to maximize the objective function and this variable's questionable contribution is evaluated by distribution fitting to online gathered data points. If indeed this variable is influencing the objective function, its effect is boosted to also maximize this variable. SA with heuristic based memory converges faster to the solution and produces better results compared to original SA technique within the same frame of time. Success of the approach is demonstrated by two case studies, comparing the revenues of the base case (ranked positional weight algorithm), standard SA and heuristic memory based SA. In all cases, NPV is higher with the heuristic memory based SA.

Raison du fort potentiel, la planification de la mine a été un sujet attrayant dans le secteur du génie minière depuis 50 ans. Planification de la mine est essentiellement un ensemble de problèmes: le séquençage de bloc, la discrimination minerai déchets et les taux de production. Auparavant, la technique d'apprentissage machine Simulated Annealing (SA) a été utilisé pour résoudre le problème classique de la planification de la mine avec la méthode Lerchs-Grossman. Nous prenons cette approche un pas en avant pour résoudre poly-métallique, plusieurs destinations de processus et le problème de types de roches production minière d'ordonnancement multiples en utilisant les facteurs de qualité équivalentes. Une approche de la sanction de transport a été prise pour lisser la structure fluctuante qui émerge à la suite de SA's nature. En outre, une nouvelle technique basée SA mémoire heuristique est proposé, où une variable prévu est nominé pour maximiser la fonction objectif et la contribution douteuse de cette variable est évalué en ajustant à la ligne des points de données recueillies distribution. En effet, si cette variable…

Advisors/Committee Members: Mustafa Kumral (Internal/Supervisor).

Subjects/Keywords: Engineering - Mining

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Sari, Y. A. (2015). Mine production scheduling through Heuristic memory based, improved simulated annealing. (Masters Thesis). McGill University. Retrieved from https://escholarship.mcgill.ca/downloads/6w924f71j.pdf ; https://escholarship.mcgill.ca/concern/theses/ht24wn345

Chicago Manual of Style (16^th Edition):

Sari, Yuksel Asli. “Mine production scheduling through Heuristic memory based, improved simulated annealing.” 2015. Masters Thesis, McGill University. Accessed April 10, 2021. https://escholarship.mcgill.ca/downloads/6w924f71j.pdf ; https://escholarship.mcgill.ca/concern/theses/ht24wn345.

MLA Handbook (7^th Edition):

Sari, Yuksel Asli. “Mine production scheduling through Heuristic memory based, improved simulated annealing.” 2015. Web. 10 Apr 2021.

Vancouver:

Sari YA. Mine production scheduling through Heuristic memory based, improved simulated annealing. [Internet] [Masters thesis]. McGill University; 2015. [cited 2021 Apr 10]. Available from: https://escholarship.mcgill.ca/downloads/6w924f71j.pdf ; https://escholarship.mcgill.ca/concern/theses/ht24wn345.

Council of Science Editors:

Sari YA. Mine production scheduling through Heuristic memory based, improved simulated annealing. [Masters Thesis]. McGill University; 2015. Available from: https://escholarship.mcgill.ca/downloads/6w924f71j.pdf ; https://escholarship.mcgill.ca/concern/theses/ht24wn345

Open Access Theses and Dissertations