Dissertations / Theses on the topic 'Mine closure'
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De, Jager A. J. (Albertus Johannes). "Generic model for mine closure." Thesis, Stellenbosch : Stellenbosch University, 2000. http://hdl.handle.net/10019.1/49679.
Full textDuring the last five years, successful mine closure has become one of Iscor Coal Business primary strategic focus areas. Three Iscor Coalmines are currently in different stages of closure, i.e. North Field, Hlobane and Dumacol and the demand on management time spent on this issue is increasing. The changing legal environment, especially issues concerning rehabilitation and mine closure, demands that every company must take full responsibility for any detrimental effect that their operations may have on the environment. This study concerns itself with establishing a generic procedure for mine closure. The interface with all stakeholders, external and internal, is considered. The primary focus areas are determined and the most important issues within each area are discussed in such a way that operational managers and strategists could use it as base knowledge for future closures. Applying the model to an actual closure process, i.e. the closure of Durnacol Coalmine, tested the validity of the model and it was verified that the process could be used as a base for future reference.
Xavier, André Moura. "Socio-Economic Mine Closure (SEMC) framework : a comprehensive approach for addressing the socio-economic challenges of mine closure." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/45595.
Full textUnver, B. "Closure in longwall access roadways." Thesis, University of Nottingham, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384696.
Full textKeilich, Walter. "Numerical modelling of mining subsidence, upsidence and valley closure using UDEC." School of Civil, Mining & Environmental Engineering - Faculty of Engineering, 2009. http://ro.uow.edu.au/theses/862.
Full textReynolds, Christopher David. "The effects of coal mine closure on macroinvertebrate communities." Thesis, Nottingham Trent University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341279.
Full textSherwood, Julia Merryn. "Modelling minewater flow and quality changes after coalfield closure." Thesis, University of Newcastle Upon Tyne, 1997. http://hdl.handle.net/10443/314.
Full textShort, Robin Vincent. "Using socio-economic impact assessment to plan for mine closure: De Beers Namaqualand Mines proposed closure in ten years time (AD 2002)." Thesis, University of Cape Town, 1992. http://hdl.handle.net/11427/23338.
Full textShen, Boxi. "Study on financial assurance and closure cost for mine reclamation." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/60171.
Full textApplied Science, Faculty of
Mining Engineering, Keevil Institute of
Graduate
Mackenzie, Andrew G. "A socio-economic impact assessment of the future closure of a diamond mine in Namaqualand, South Africa : planning for mine closure a decade in advance." Master's thesis, University of Cape Town, 1992. http://hdl.handle.net/11427/17326.
Full textDe Beers Namaqualand Mines (DBNM) have appointed the Environmental Evaluation Unit to undertake an impact assessment of mine closure. According to recent estimates DBNM anticipate that their diamond mining operations in Namaqualand will have to be closed in approximately ten years time. DBNM requested that the study focus on the socio-economic implications of mine closure within the regional context of Namaqualand and not the broader context of South Africa. It is anticipated that the results and recommendations of the study will be used by DBNM in planning for mine closure. The aims and objectives of the study are: 1) To assess the socio-economic consequences of future mine closure. 2) To recommend actions that will mitigate the impacts of mine closure. The aims and objectives of this report are to: 1) Fulfil the academic requirements of the degree. 2) Assess and evaluate information collected during the data collection phase of this project (contained in the Baseline Information Report) and to present these findings clearly and concisely, highlighting significant impacts and options for mitigation. 3) To communicate these findings in a way as would make them useful to both the client as the decision-maker and the interested and affected parties.
Sherwood, Julia M. "Modelling minewater flow and quality changes after coalfield closure." Boston Spa, U.K. : British Library Document Supply Centre, 1997. http://ethos.bl.uk/OrderDetails.do?did=1&uin=uk.bl.ethos.363536.
Full textGardiner, Sean Jonathan. "Impacts of mining and mine closure on water quality and the nature of the shallow aquifier, Yandi Iron Ore Mine." Thesis, Curtin University, 2003. http://hdl.handle.net/20.500.11937/2279.
Full textToni. "Economic model of mine closure and its potential for economic transformation." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2015. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-162978.
Full textCollins, Benjamin C. "Mine closure planning with First Nations communities : the Stk'emlupsemc te Secwepemc Nation and the New Afton Mine." Thesis, University of British Columbia, 2015. http://hdl.handle.net/2429/54759.
Full textApplied Science, Faculty of
Mining Engineering, Keevil Institute of
Graduate
Altamirano-Soto, Pablo, Jorge Supa-Urrutia, Humbero Pehovaz-Alvarez, Carlos Raymundo, Nestor Mamani-Macedo, and Francisco Dominguez. "Filling Method Implementing Hydraulic Lime for Reusing Mine Tailings and Improve Sustainability in Conventional Peruvian Underground Mines." Springer, 2020. http://hdl.handle.net/10757/656169.
Full textMining in Peru has existed for several decades, and for several years, there has been no proper environmental management of the impact of this activity on the environment and society in general, whether it be gas emissions, the presence of acidic water, or the generation of mining tailings. One of the most prominent examples involve mine tailings; these are by-products of mining processing plants and are stored in a dam known as a tailings dam. Like any extraction activity, mining generates large amounts of waste material that could become potential risks to the environment and society. Using hydraulic fills, the mine tailings contained in tailings dams could be reused. These fills seek to decrease the volume of stored tailings to prevent any future dam collapses, as observed in Brazil with the Vale mining company, where its tailings dam collapsed and caused more than 200 deaths.
Centeno, Camila Lamonato. "Sistematização de procedimentos para o fechamento temporário de minas de agregados." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/165262.
Full textThis work describes a methodology used to construct a standard procedure to be used by technicians of the National Department of Mineral Production (DNPM) to evaluate the request for mining temporary suspension for a certain period. The method is implemented through a form, built to be applied in the field inspection provided for the mineral legislation in case of request for suspension of the mining activities, initially with proposal of application in open cast mines of aggregates. The idea developed assumes that the justification presented by the company is satisfactory and that it showed all documents provided for the legislation, also in a satisfactory manner. It systematizes items of current character to classify in a standardized and objective way the mine that is requesting suspension. The methodology intents to complement the analysis, make it less subjective and confirm the information contained in the submitted documents. The procedure also aims at mitigating the impacts and that the area remains under permanent care and maintenance, without aggravating the liabilities, as well as, enable to return the operations in a safe way.
Neri, Ana Claudia. "Tratamento de incertezas no planejamento do fechamento de mina." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/3/3134/tde-14052014-153850/.
Full textUncertainties are intrinsic to the mine closure planning, activity which involves complex long-term technical, social, economic and environmental questions, based on fragmented and non-systematic information and knowledge. Uncertainties in decision-making may lead to inefficacious closing actions, which do not achieve the expected goals and/or demand a lot of financial, human and other types of resources. This research aimed at understanding the nature of the uncertainties involved in the mine closure planning process by defining their causes, types and ways to deal with them and analyzing how they are treated in best-practice guidelines. Uncertainty in the context of mine closure planning is understood as a situation in which there is incomplete knowledge, unpredictability or no single way to understand the process to be managed. In this context, the main causes of uncertainties are respectively: lack of knowledge, time and space variability of the behavior of the components in the process and different approaches or understanding about the analyzed situation. Eight types of uncertainties regarding the mine closure planning have been defined and grouped in three components: (i) natural (environmental, geological and geotechnical uncertatinty), technical (operational and technological uncertatinty), (iii) social- economical (social, regulatory, management and economic uncertainties). Enterprises associations and public agencies have been publishing guidelines to provide the companies with advice on how to plan the mine closure. However, these guidelines do not seem to be explicit in recognizing and dealing with uncertainty in the closure planning. Thus, using the content analysis technique, four best practice guidelines have been examined in order to determine whether and how they approach or produce advice to deal with uncertainty in the closure planning. The results have shown that certain types of uncertainty are addressed by the guidelines, which provide some advices to deal particularly with environmental, social, regulatory and economic uncertainties. Nevertheless, the guidelines: (i) do not present a clear concept or understanding about the uncertainty which are intrinsic to the mine closure planning, although in some situations the recognize their existence and influence; (ii) the higher emphasis on the environmental aspects used by the guidelines may induce the companies to allocate reponsibilities to deal with x questions related with the closure, the environmental department or the relations with the community and cause them not be treated in strategic level by the company and (iii) most guidelines do not provide advices on how to improve and evaluate the quality of the information/knowledge of the decision-making. An analytical scheme composed by three steps is proposed to deal with the uncertainties in the closure planning: (i) identification of the uncertainty type; (ii) definition of uncertainty causes and (iii) definitions of actions and strategies to deal with uncertainties. This proposal may contribute for the mining companies to consider in a structured way the uncertainties in their closure-related decisions and for the public agencies to evaluate the information present in closure plans and other technical studies related to licensing projects.
Nel, Johannes Hendrik. "An investigation of mine closure : gold mine case studies on the East Rand in South Africa / J.H. Nel." Thesis, North-West University, 2008. http://hdl.handle.net/10394/4088.
Full textThesis (M. Environmental Management)--North-West University, Potchefstroom Campus, 2009.
Gardiner, Sean Jonathan. "Impacts of mining and mine closure on water quality and the nature of the shallow aquifier, Yandi Iron Ore Mine." Curtin University of Technology, Department of Applied Geology, 2003. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=15728.
Full textSingh, Srikesh. "A comparative analysis of financial guarantee instruments for mine closure in relation to the interests of medium-sized mines." Diss., University of Pretoria, 2017. http://hdl.handle.net/2263/60095.
Full textMini Dissertation (LLM)--University of Pretoria, 2017.
Public Law
LLM
Unrestricted
Roberts, Stephen Alexander. "An analysis of stakeholder perceptions regarding the closure of the Highland Valley Copper Mine." Thesis, University of British Columbia, 2005. http://hdl.handle.net/2429/37992.
Full textApplied Science, Faculty of
Mining Engineering, Keevil Institute of
Graduate
Tshivhandekano, Aubrey Ndinannyi. "Documenting reclamation and closure of Ermelo coal mines : implications for developing a national strategy for mine reclamation in South Africa." Diss., Pretoria : [s.n.], 2004. http://upetd.up.ac.za/thesis/available/etd-12082005-152604.
Full textBarrezueta-Delgado, Erika, Naysha Blas-Trujillo, Yaneth Vasquez-Olivera, Carlos Raymundo, Nestor Mamani-Macedo, and Javier M. Moguerza. "A Cyanide Tailings Management Method Using Pseudomonas Fluorescens to Improve Conventional Treatments for Progressive Closure at Small Gold Mines." Springer, 2020. http://hdl.handle.net/10757/656170.
Full textBased on the review of different research studies, we could assess that, due to their unique biological features, microbes, specifically bacteria, could be used to repair damaged soils with heavy metal and toxic compound contents. Furthermore, these microorganisms are metabolically capable to oxidize cyanide and its by-products to generate less-toxic compounds at the end of the process. This research proposal seeks to improve conventional mine closure designs, thus counteracting their negative short-term, medium-term, and long-term after-effects to the environment. The proposed technique as a solution, therefore, is microbial remediation, using pseudomonas fluorescens bacteria to oxidize this compound to non-toxic components. It will ensure operational continuity for the deposits and, in turn, the sustainability of the entire mining industry.
Camelo, Marta Sawaya Miranda. "Fechamento de mina : análise de casos selecionados sob os focos ambiental, econômico e social." Programa de Pós-Graduação em Engenharia Geotécnica. Núcleo de Geotecnia, Escola de Minas, Universidade Federal de Ouro Preto, 2006. http://www.repositorio.ufop.br/handle/123456789/2355.
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ABSTRACT: The concern about the environment come imposing itself for a few decades, becoming today, a world phenomenon and causing a rethink of attitudes in all the activities that intervene direct or indirectly in the environment. In the mining, according to this new conscience, the society also comes demanding a new boarding for the question of mine closure (known internationally for design for mine closure). A joint effort has been materialized, causing adjustments in the mining projects since its implantation, until its deactivation and closing, as well as in the legal systems that intervene in this aspect in Brazil. There is still a lack of studies developed in this area and a lot still has to be done, therefore the choice of the subject for this thesis. It is intended, during this work: to present a description of the evolution of Brazilian legislation; to approach some aspects of the international legislation relating them with the current trends; to propose a discussion about effectiveness of the fulfillment of the legislation and its impediments in the process of mining closure. It is expected to culminate this work discussing concrete cases of mining closure that allow the improvement of future plans of mining closure.
A preocupação com a questão ambiental vem se impondo há algumas décadas, tornando-se, hoje, um fenômeno mundial e provocando um repensar de atitudes em todas as atividades que interferem direta ou indiretamente no meio ambiente. Na mineração, em decorrência dessa nova consciência, a sociedade vem exigindo uma nova abordagem também para a questão do fechamento de mina (conhecido internacionalmente por design for mine closure). Um esforço conjunto vem se materializando, provocando ajustes nos projetos de mineração desde sua implantação até sua desativação e fechamento, bem como nos ordenamentos jurídicos que interferem nesse aspecto no Brasil. Ainda são poucos os estudos desenvolvidos nessa área, e muito ainda precisa ser feito, por isso a escolha do tema para essa dissertação. Pretende-se, no desenrolar deste trabalho: apresentar um histórico da evolução da legislação brasileira vigente; abordar alguns aspectos da legislação internacional relacionando-as com as tendências atuais; propor uma discussão sobre a efetividade do cumprimento da legislação e seus entraves no processo de fechamento de mina. Espera-se culminar esse trabalho discutindo casos concretos de fechamento de mina que permitam o aprimoramento de futuros planos de fechamento de mina. __________________________________________________________________________________________________________________________________________________
Breyl, Jacobus. "Sinkhole formation due to subsurface erosion above undermined ground." Diss., University of Pretoria, 2019. http://hdl.handle.net/2263/73464.
Full textDissertation (MEng)--University of Pretoria, 2019.
Civil Engineering
MEng (Geotechnical Engineering)
Unrestricted
Nene, Thami Wellington. "An analysis of the appropriateness of statutory financial security mechanisms for mine closure and rehabilitation in South Africa." Diss., University of Pretoria, 2019. http://hdl.handle.net/2263/76744.
Full textMini Dissertation (LLM)--University of Pretoria, 2019.
Public Law
LLM
Unrestricted
Sullivan, Nora M. "Comparing Acid and Metal Loading Before and After Stream Capturing Subsidence Closure." Ohio University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1450952105.
Full textCosgrove, Betty Alveen, and b. cosgrove@cqu edu au. "Mount Morgan: images and realitiesdynamics and decline of a mining town." Central Queensland University. School of Humanities, 2001. http://library-resources.cqu.edu.au./thesis/adt-QCQU/public/adt-QCQU20050427.131849.
Full textHaagner, Adrian Sigmund Harold. "The role of vegetation in characterising landscape function on rehabilitating gold tailings / A.S.H. Haagner." Thesis, North-West University, 2008. http://hdl.handle.net/10394/3717.
Full textThesis (M.Sc. (Environmental Sciences and Management))--North-West University, Potchefstroom Campus, 2009.
Schmitzhaus, Wagner Cristiano. "Análise de cenários de planejamento de lavra para adequação de uso futuro de área de mineração de agregados." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2018. http://hdl.handle.net/10183/178456.
Full textAggregate production for civil construction is the largest Brazilian mineral segment, in production numbers, consisting mainly of small and medium-sized enterprises, usually using obsolete techniques and procedures and little or no planning for both extraction and closure of the mine. The closure of mines and subsequent use of the area is still a major problem, there are many mined areas where the mine closure plan has not been implemented, thus leaving a high social and environmental liability, damaging the mining image, but there are several examples of use of deactivated mining sites for the implementation of diverse projects. In order to show the importance of planning for the closure and subsequent use of the mining area, as well as the environmental analysis of impacts of the activity on society and the environment, this work has the objective of developing a methodology to assist, especially small and medium aggregate producer, on the impacts that correct planning and management of the operation has on the future use of the area. Different scenarios of future uses of a mining area located in the Northern Coast of Rio Grande do Sul were developed, which were later compared to each other in relation to mineral recovery, socioenvironmental impacts, and financial return. At the end of the work it was possible to visualize an appropriate methodology for the analysis of socio-environmental impacts and planning to prepare the area to receive new projects. From these methods of analysis we have several comparative scenarios, so that the entrepreneur can make the most correct decision regarding his mining enterprise and future enterprises after the closing.
Hewitt, Mark S. "Alternative rehabilitation techniques and sustainable outcomes from mining using appropriate environmental management and mine closure planning in an arid region of Western Australia." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2007. https://ro.ecu.edu.au/theses/250.
Full text[Verfasser], Toni, Carsten [Akademischer Betreuer] Drebenstedt, Carsten [Gutachter] Drebenstedt, and Peter [Gutachter] Moser. "Economic model of mine closure and its potential for economic transformation / Toni ; Gutachter: Carsten Drebenstedt, Peter Moser ; Betreuer: Carsten Drebenstedt." Freiberg : Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2015. http://d-nb.info/1220912042/34.
Full textButhelezi, Mbekezeli Simphiwe. "A critical evaluation of local level responses to mine closure in the Northwestern KwaZulu-Natal coal belt region, South Africa." Thesis, Rhodes University, 2004. http://hdl.handle.net/10962/d1005497.
Full textWeyer, Vanessa Derryn. "Surface-strip coal mine rehabilitation risk assessment : the development of an integrated rehabilitation risk assessment model for use in South Africa and Australia." Thesis, University of Pretoria, 2020. http://hdl.handle.net/2263/77899.
Full textThesis (PhD)--University of Pretoria, 2020.
Geography, Geoinformatics and Meteorology
PhD
Unrestricted
Karlsson, Urban. "Den obefintliga framtiden : en studie om en nedläggningshotad gruvby i fjällen." Doctoral thesis, Umeå universitet, Institutionen för socialt arbete, 1990. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-61926.
Full textdigitalisering@umu
Taveira, Ana Lucia Silva. "Provisão de recursos financeiros para o fechamento de empreendimentos mineiros." Universidade de São Paulo, 2003. http://www.teses.usp.br/teses/disponiveis/3/3134/tde-25062004-125720/.
Full textA mine closure plan, if not well administered, can cause adverse environmental impacts that may directly affect the population in the surroundings. Traditionally, the exhausted mines were abandoned without being taken the suitable provisions to reduce the hazards and social-environmental shocks. Presently, in several countries, the mining industries, are responsible for the rehabilitation of the mined areas and for taking the necessary precautions aiming to moderate the negative impacts of the mine closure. Nevertheless, continuous negligent attitudes are still observed on the entrepreneurs part , disregarding the mined areas or establishing unsatisfactory measures for a suitable mine close-out, under assertion of insufficient means to finance the required steps when no income is generated due to a lack of provision of resources beforehand during operation undertaking. Such a situation becomes unacceptable with the course humanity is now taking, that demands, even in principle means, the promotion of a sustainable development. Therefore, there arises the need of generating new methods to render implementation of a closure plan for each mine, in the means of satisfying the expectations of the communities and interested parties. To develop and execute such a plan, it becomes extremely important to identify and determine the financial resources to reach this purpose. One of the options would be the internalization of the environmental costs of the closure plan to the company, applying the Pollution-Pay-Principle and the ABC Method (Activity Based Costing) with the objective to provide those resources for the execution of projects . In addition, it is of equal importance to determine the closure plan accountability. This thesis considers how each segment of the society (government, general public and entrepreneurs ) should act and participate in a closure plan process. Based on the evaluation of the data presented, it was concluded that a closure plan should be developed at the very beginning of a mining project leading to an adequate provision of financial resources and establishment of financial warranties. . The success of some closure plans were due to intense participation of all involved, during all the phases of mining development, asserting opened discussion and demands amongst the company and community. In some cases, the abuse of the area or the dissatisfaction of the society regarding the company prevailed and caused a negative image of the company and mineral industry. It is noticed that many closure plans do not give proper attention to the aspects related to the environment and the community life where the mine is. The entrepreneur is the only responsible party for implementing and preparing such plan and furthermore providing the resources required. The government is in charge for developing closure plans guidelines to be followed, verify and enforce compliance to the guidelines. The general public should express its cravings , verify and participate in the closure plan and furthermore on discussions of the alternative use of the area once the mine is closed. The plan should also ponder on the engineering projects for recovering the area, fauna recovery programs and rearrangement of botany, social-development programs as for the community affected and employees and mining suppliers; an investment estimate, suitable for the work which is to be implemented, should be included and clearly define the financial chronology. The main purpose is to succeed in physical, chemical and biological stability in the short and long term, as well as the social development of the affected community.
Frith, R. C. "Study of prediction of closure behaviour and stability of mining tunnels." Thesis, University of Nottingham, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381162.
Full textMcCulloch, Gregory. "Socio-economic impact assessment of De Beers Namaqualand Mines closure in 2002." Master's thesis, University of Cape Town, 1992. http://hdl.handle.net/11427/21693.
Full textThis summary contains three sections. Firstly a review of the Baseline Information Report followed by a presentation of the findings of this assessment report. The findings are the impacts of closure. Finally mitigatory measures are recommended. The Baseline Information Report, 5/92/87, was produced by the Environmental Evaluation Unit (EEU) with the assistance of the 1 992 Masters students of the department of Environmental and Geographical Science. Its primary aims were to introduce the NM 2005 study, describe methods used and present results. A brief description of its contents follows : De Beers Namaqualand Mines (DBNM) commissioned the EEU to undertake a study, seeped to assessment ofthe socio-economic effects of mine closure and recommendations for mitigation. The effects or impacts; vary in their magnitude and significance further more they effect a wide range of people and organisations. To establish the magnitudes and significance of the socio-economic effects, the environments of Namaqualand and the Transkei region, in which the impacts are to occur, needed definition. The defined environments acted as a baseline for changes brought about through DBNM closure. Firstly, the history of the Namaqualand people and their socio-economic activity trends was established and issues were put in context. History indicates Namaqualand went through a land-grabbing phase, during which the Khoi Khoi people were dispossessed of their land to make way for trekboer farming and copper and diamond mining (Fig, 1991). The latter industries continue to dominate the region today, providing labour opportunities for Namaqualand's coloured majority and 58 %of the region's gross geographic product in 1991. The agricultural and fishing industries are marginal and are expected to remain that way (Dunne, 1988). Secondly, the Transkeian environment, its history and trends were established using the Herschel District as microcosm for study. The results indicated a history of forced removals. The present subsistence community are struggling with poor infrastructure and are heavily dependant on pensions and money sent home from migrant labourers. Having established some background the report continues by describing the social effects which could be felt by the DBNM employees, their dependants, their communities and other interested and affected parties. The social effects were gauged through surveys, meetings, written and telephonic correspondence. The employees were divided into three groups; Namaqualand, Transkei and mine town, based on the regions the employees called "home". The survey results showed that the three groups were distinctly different. Indicating that group members along with their dependants and communities, could be effected by DBNM closure to different levels of significance. Their concerns with closure, revolved primarily around; unemployment and the lack of opportunities, education, quality of life and the regional economy. The groups also suggested mitigation such as the establishment of a development aid fund, returning DBNM land to the Rural Coloured Areas and DBNM involvement in local projects. The economic effects will be felt by businesses who deal with DBNM and its employees. The businesses in the Namaqualand region are likely to experience the most significant effects. While the national and international communities are likely to be influenced to a lesser extent. Economic effects were established through the examination of macro-fiscal flows, input-output analysis and a business survey in Namaqualand. The macro scale study was covered by the input-output analysis which found South Africa, outside of development region A, is likely to experience the largest financial loss, greater than that of the local region and the international community. In particular, the services and machines sectors were predicted to experience the greatest loss due to closure. On a micro scale, the survey of Namaqualand businesses indicates that 17 % of the regions turnover emanates from dealings with DBNM and its employees. DBNM closure would result in business closures (3 % in Springbok and 5 % elsewhere in Namaqualand) and retrenchments (a predicated 250 or 4. 7 % of business employees) primarily in Springbok, Steinkopf and Komaggas.
Epstein, Douglas J. "Determining the molecular basis of the mutation underlying the mouse neural tube closure mutant, Splotch." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=41266.
Full textDuring the course of this work a member of the paired box gene family, Pax-3, was described as a candidate for Sp. The striking similarity between the tissue distribution of Pax-3 mRNA in normal developing embryos, and the neural structures affected in Sp mice, together with the chromosome 1 location of Pax-3 led us to examine whether Pax-3 was mutated in three alleles at this locus Sp$ sp{r}$, Sp$ sp{2H}$ and Sp. The entire Pax-3 gene was determined to be deleted in the Sp$ sp{r}$ allele. Analysis of genomic DNA and cDNA clones constructed from RNA isolated from $Sp sp{2H}/Sp sp{2H}$ embryos identified a deletion of 32 nucleotides within the paired type homeobox and is predicted to produce a truncated protein as a result of a newly created termination codon at the deletion breakpoint. The original Sp allele was also characterized and found to contain an A to T transversion at position -2 in the third intron of Pax-3 which abrogates the normal splicing of this intron due to the loss of its natural 3$ sp prime$ splice acceptor. Taken together, these studies indicate that the severe defect in neural tube formation detected in Sp and its allelic variants is linked to the inactivation of the paired box gene Pax-3, and provides direct genetic evidence of a key role for Pax-3 in normal neural development.
Hewitson, Shaun B. "An assessment of the quantum for financial provision of mine closures: a Monte Carlo approach." Master's thesis, University of Cape Town, 2012. http://hdl.handle.net/11427/12190.
Full textIncludes bibliographical references.
Poor mine closure policy threatens both society and the environment. Some of the more prominent threats that have manifested are acid mine drainage, slimes dams and toxic dust from dumps. Current legislation requires that new mines set aside funds to cover their rehabilitation costs at closure.
Beaumont, Judy. "Nm2002 : closure of De Beers Namaqualand mines in 2002 : a socio-economic impact assessment." Master's thesis, University of Cape Town, 1992. http://hdl.handle.net/11427/17319.
Full textIn December 1991, De Beers Namaqualand Mines (DBNM) commissioned the Environmental Evaluation Unit (EEU) of the University of Cape Town to undertake a socio-economic impact assessment of the future closure of their diamond mines in Namaqualand. As the end of the life of the mines is approached it will be necessary to plan for a reduction in productivity and ultimately for mine closure. It is estimated that the financially viable diamond reserves will be depleted by approximately 2002. The purpose of this report is to identify and assess the impacts of mine closure and make recommendations for the mitigation of these effects. The study has taken place during the initial stages of planning for mine closure. Conclusions and recommendations could thus be utilised by DBNM to inform the planning process.
Campbell, Dennis D. "Ideas/objects: bringing the made closer to the mind." Thesis, Virginia Tech, 1996. http://hdl.handle.net/10919/42117.
Full textMaster of Architecture
Júnior, José Baptista de Oliveira. "Desativação de empreendimentos mineiros: estratégias para diminuir o passivo ambiental." Universidade de São Paulo, 2001. http://www.teses.usp.br/teses/disponiveis/3/3134/tde-22102003-153601/.
Full textOne of the most important stages in the mine planning is the closure of a mine. This study has the aim to minimize or eliminate the well-known environmental damage left after the closure of the mine site. In order to carry out the process of mine closure, some procedures and programs should be conducted during the mine life cycle, involving people who are interested in environment problems. It is also important, the previous calculation of the environmental cost and all the cost relate to the closure of the mine itself during the mine project by using reliable cost index. In this research, three different mining companies having abandoned areas were evaluated: the first being closed-down completely, the second one having an abandoned mining face and the third one was thoroughly paralyzed. It was demonstrated in this case-study that there aren't any procedures or specifications for mines closure which could be considered in beginning of the mining project. This lack of regulation and procedures related to mining closure makes mining company managers or mining company owners only take into consideration a closure mining plan in the final stage of the production when the mine site needs to be closed as soon as possible. However, at that stage, most mining companies are with lack of working capital and the cost of environment protection is very expensive. As result of this research, a Closure Mine Model was proposed, which should be prepared in the very beginning of the mining planning stage. It was also proposed an economic index that is related to the cost of environment protection to the mining production cost in the stage of the economical feasibility studies.
Gosling, Melanie. "An assessment of the potential socio-economic impact of the future closure of DBNM's diamond mines in Namaqualand." Master's thesis, University of Cape Town, 1992. http://hdl.handle.net/11427/17320.
Full textDe Beers Consolidated Mines, Namaqualand Division (DBNM) anticipate that the financially viable diamond reserves at their mines on the West Coast would be depleted by 2002, resulting in closure of the mine. DBNM commissioned the Environmental Evaluation Unit (EEU) of the University of Cape Town to assess the social and economic impacts of future mine closure and to recommend measures to mitigate the negative impacts. The aim is to assist DBNM management in future planning. Baseline data were compiled in a separate document: NM2005: Impact Assessment: Baseline Information Report. Using that data, this report identifies and assesses the socio-economic impacts of mine closure on DBNM employees, and on the two regions from where most employees originate, Namaqualand and the Herschei/Sterkspruit district of Transkei (Fig 2). Integrated environmental management procedures and social impact assessment methods were followed in the assessment.
Wang, Chanung. "A COMPARATIVE STUDY OF SLEEP, DIURNAL PATTERNS, AND EYE CLOSURE BETWEEN THE HOUSE MOUSE (MUS MUSCULUS) AND AFRICAN SPINY MOUSE (ACOMYS CAHIRINUS)." UKnowledge, 2018. https://uknowledge.uky.edu/biology_etds/53.
Full textOguamanam, Eugene Ezenwa. "An Encounter Between Aristotle And Contemporary Philosophy of Mind The Case of Reductive Physicalism As Espoused By Jaegwon Kim." Thesis, University of Pretoria, 2020. http://hdl.handle.net/2263/74925.
Full textThesis (DPhil)--University of Pretoria 2020.
University of Pretoria(Postgraduate Bursary (2017-2018)
Philosophy
DPhil
Unrestricted
TOURINHO, CARLOS DIOGENES CORTES. "THE REDISCOVERY OF CONSCIOUSNESS IN THE CONTEMPORARY PHILOSOPHY OF MIND: SUBJECTIVISM, REDUCTIONISM AND THE HYPOTHESIS OF THE COGNITIVE CLOSURE." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2003. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=4355@1.
Full textA pesquisa concentra-se em torno da noção de consciência, mais precisamente, em torno da redescoberta dessa noção na Filosofia da Mente contemporânea. Antes, porém, mostra- nos, através de uma revisão histórica dos estudos sobre a mente, que a referida noção passa por transformações importantes do século XVII ao final do século XIX, sendo caracterizada, em momentos distintos, como reflexividade,como intencionalidade e como memória. Em seguida, após analisar o processo de enfraquecimento dos estudos sobre a consciência no começo do século XX, a pesquisa aborda a retomada desses estudos na Filosofia da Mente contemporânea, registrando seus principais programas de pesquisa, bem como os impasses criados a partir das controvérsias entre as teorias reducionistas da consciência e as teorias subjetivistas, partidárias de um anti- reducionismo. Ao final, analisando a hipótese do fechamento cognitivo, nas versões do naturalismo não-construtivo e da teoria da diafaneidade,a pesquisa aponta-nos uma solução para os impasses acerca do problema da consciência no cenário contemporâneo, procurando ressaltar algumas implicações importantes para uma compreensão da consciência para além de um domínio intencional.
This thesis brings the notion of consciousness into focus. A critical study is undertaken about the historical fact of the rediscovery of such a notion along the last decades of the twentieth century, within the area of philosophy known as Philosophy of Mind. In order to prepare the study of such an event, a propedeutic historical survey of consecutive philosophical conceptions of consciousness, first as reflexivity, then as intentionality and then as memory is presented, along with the analysis of the eclipse of such notion in the behaviouristic psychology and psychoanalysis of the beginning of the twentieth century. To this survey it follows a critical exposition of the research programmes agenda of the (then) new area of the Philosophy of Mind from the fifties, its controversies and impasses. Finally a possible solution for such impasses is suggested to lie in the proposal of two dimensions of consciousness, one intentional, the other non- intentional, as an implication of both the naturalistic and the transparency hypothesis of the cognitive closure research programme.
La recherche est concentrée au tour de la notion de conscience, particulièrement, de la reprise de cette notion dans la Philosophie Contemporaine de lEsprit. Avant, cependant, le recherche nous montre, dans le contexte d`une révision historique des études sur lesprit, que la notion référée passe par des transformations importantes dès le XVII siècle jusquà la fin du XIX siècle, transformations caracterisées par des moments différents, dans lesqueles la conscience apparait comme réflexion, intention et mémoire. Puis, après lanalyse du processus daffaiblissement des études sur la conscience au début du XX siècle, la recherche montre la reprise des études sur la conscience dans la Philosophie Contemporaine de lEsprit, en registrant ses principaux programmes de recherche, aussi bien que les difficultées crées à partir des controverses entre les théories réductionistes et les théories subjectivistes partisanes dun anti réductionisme. Finallement, en analysant lhypothèse de la fermeture cognitive dans les conceptions du naturalisme non- constructif et de la théorie de la transparence, la recherche nous indique une solution pour les impasses sur ce sujet dans la scène contemporaine, en recherchant à mettre laccent sur quelques implications importantes de lhypothèse de la fermeture cognitive pour la compréhension de la conscience qui depasse le domaine intentionnel.
Greeff, Karen Liane. "Socio-economic impact assessment of the proposed closure of De Beers Namaqualand diamond mines by the year 2005 : main report." Master's thesis, University of Cape Town, 1993. http://hdl.handle.net/11427/17321.
Full textIn 1991 the Environmental Evaluation Unit (EEU) of the University of Cape Town was appointed by DBNM to undertake a socio-economic impact assessment of the proposed closure of DBNM by the year 2005. According to De Beers, the source of viable diamond ore is finite and unless technological advances or market fluctuations make the reserves economically viable, the mine has no option but to shut down its operations. This is anticipated to have major social and economic impacts on the region and DBNM. The emphasis is on regional impacts i.e. the Namaqualand Magisterial District. However, due to the concentration of employees originating from the Herschel District in the Transkei, special cognisance is taken of impacts likely to occur there. Therefore, the two main purposes of this report are to: * identify and evaluate the potential major socio-economic impacts arising out of the closure of De Beers Namaqualand Mines (DBNM), * determine mitigatory action which will reduce negative impacts and optimize positive impacts.
Proulx, Michèle. "The uranium mining industry of the Bancroft area, an environmental history and heritage assessment." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq21696.pdf.
Full textBishop, Richard. "Applications of Close-Range Terrestrial 3D Photogrammetry to Improve Safety in Underground Stone Mines." Thesis, Virginia Tech, 2020. http://hdl.handle.net/10919/98920.
Full textM.S.
The underground limestone mining industry is a small, but growing segment of the U.S. crushed stone industry. However, its fatality rate has been amongst the highest of the mining sector in recent years due to ground control issues related to ground collapses. It is therefore important to improve the engineering design, monitoring and visualization of ground control by utilizing new technologies that can help maintain safe and productive underground stone operations. Photogrammetry and laser scanning are remote sensing technologies that are useful tools for collecting three-dimensional spatial data with high levels of precision for many different mining applications. Due to the reality of budget constraints for many mining operations, this research concentrates on photogrammetry as a more accessible technology for the average operation, despite the challenging lighting conditions and expansive size of underground limestone mines that has previous hindered photogrammetric surveys in these environments. This research focuses on the applications of photogrammetry in underground stone mines and practical methodologies for implementing the techniques in working operations to better visualize hazards for improved engineering design and infrastructure management.
Word, Sheela. "Eeny, meeny, miny, mo : self and close-other selection of personality test interpretations." PDXScholar, 1988. https://pdxscholar.library.pdx.edu/open_access_etds/3855.
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