Relevant bibliographies by topics / Deep mine

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Deep mine'

Author: Grafiati
Published: 19 February 2023

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Journal articles on the topic "Deep mine"

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Pool, R. "Deep space mine [lunar mining]." Engineering & Technology 8, no. 12 (December 1, 2013): 63–67. http://dx.doi.org/10.1049/et.2013.1206.

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Greberg, Jenny, and Abubakary Salama. "Analysis of the Current Challenges for Deep Underground Mines: Labour Productivity Improvement." Tanzania Journal of Engineering and Technology 39, no. 1 (June 30, 2020): 32–46. http://dx.doi.org/10.52339/tjet.v39i1.517.

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With much of the ore deposits close to the surface already discovered and mined, the mines are becoming deeper, and this brings multiple challenges. One of the challenges is the longer haul distance from active mining areas to the mine surface, hence longer transportation time of material and operators. Longer transportation time of operators may lead to the reduction of the labour productivity. Labour productivity in today’s mines is a key importance, and is currently dependent on together with other factors that operators should be at the vehicles or working area on time. There has been some development in mine automation, but the vast majority of underground mine operations are still in need of operators. Several methods are available and can be used to transport operators to the underground working areas. These methods include mine vehicles, mine taxis, mine buses, monorail, and shaft system. As mine depth increases, the method with higher labour productivity will be of much useful in operator’s transportation. The aim of this study is to investigate personal transportation methods for deeper underground operations by comparing labour productivity when using mine vehicle, mine taxi, mine buses, and monorail system. The results show that mine vehicle has higher labour productivity of up to 76% of available time, while mine buses have low labour productivity. It has been reveal that for shallow depth mines, a good option to improve labour productivity is to have few operators transported per cycle, while for deep mines, a transport system that is faster, accommodate few operators per cycle, less possibility to meet traffic will be the better option for labour productivity improvement.
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Beaulieu, Stace E., T. E. Graedel, and Mark D. Hannington. "Should we mine the deep seafloor?" Earth's Future 5, no. 7 (July 2017): 655–58. http://dx.doi.org/10.1002/2017ef000605.

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Li, Yong, Yun Yi Zhang, Ren Jie Gao, and Shuai Tao Xie. "In Situ Stress Measurement and Inversion in Deep Roadway." Advanced Materials Research 734-737 (August 2013): 759–63. http://dx.doi.org/10.4028/www.scientific.net/amr.734-737.759.

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Jixi mine area is one of the early mined areas in China and it's a typical deep mine. Because of large deformation of underground roadway and dynamic disasters occurred frequently in this mine, five measurement points of in-situ stress in this mine was measured and then analyzed with inversion. Based on these in-situ stress measurement data, numerical model of 3D in-situ stress back analysis was established. According to different stress fields, related analytical samples of neural network were given with FLAC program. Through the determination of hidden layers, hidden nodes and the setting of parameters, the network was optimized and trained. Then according to field measurement of in-situ stress, back analysis of initial stress field was conducted. Compared with field measurement, with accuracy requirement satisfied, it shows that the in-situ stress of rock mass obtained is basically reasonable. Meanwhile, it proves that the measurement of in-situ stress can provide deep mines with effective and rapid means, and also provide reliable data to optimization of deep roadway layout and supporting design.
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Guo, Jiang, Xin Cheng, Junji Lu, Yan Zhao, and Xuebin Xie. "Research on Factors Affecting Mine Wall Stability in Isolated Pillar Mining in Deep Mines." Minerals 12, no. 5 (May 13, 2022): 623. http://dx.doi.org/10.3390/min12050623.

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This study takes the Dongguashan Copper Mine as its engineering background. Based on the mechanical model of the mine wall under the trapezoidal load of the backfill, a comprehensive evaluation index is proposed, and its calculation equation is derived. On this basis, an orthogonal test is designed to explore the influence of mining design parameters on mine wall stability. The results show that the width of the mine wall is the main factor affecting its stability, and increasing the width of the mine wall can significantly improve its stability. When the width of the mine wall is kept above 4 m, its stability is better. When the mechanical parameters of the backfill are poor, the mine wall is prone to overturning failure. The width of the mine room has an influence on the multi-directional loading of the mine wall, but the influence on the stability of the mine wall is low. According to the regression equation calculation, the mine wall safety factor is about 1.46 under the design of G5 mining of Dongguashan Line 52, the stability of the mine wall is good after actual mining and the engineering application effect is ideal, which can provide a theoretical basis for the design of isolation pillar mining in deep mines.
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Voosen, Paul. "Deep in a mine, earthquake gold awaits." Science 356, no. 6341 (June 1, 2017): 891–92. http://dx.doi.org/10.1126/science.356.6341.891.

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Davies, Gareth. "Red sea mine tailings must go deep." Marine Pollution Bulletin 16, no. 9 (September 1985): 344–45. http://dx.doi.org/10.1016/0025-326x(85)90079-7.

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WIEDEMANN, H. "Report: Deep mine disposal of hazardous waste." Waste Management & Research 9, no. 1 (February 1991): 65–66. http://dx.doi.org/10.1016/0734-242x(91)90088-o.

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Brumfiel, Geoff. "'Mile-deep club' of researchers sets sights on disused gold mine." Nature 419, no. 6905 (September 2002): 325–26. http://dx.doi.org/10.1038/419325a.

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Cao, Anye, Yaoqi Liu, Xu Yang, Sen Li, and Yapeng Liu. "FDNet: Knowledge and Data Fusion-Driven Deep Neural Network for Coal Burst Prediction." Sensors 22, no. 8 (April 18, 2022): 3088. http://dx.doi.org/10.3390/s22083088.

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Coal burst prediction is an important research hotspot in coal mine production safety. This paper presents FDNet, which is a knowledge and data fusion-driven deep neural network for coal burst prediction. The main idea of FDNet is to extract explicit features based on the existing mine seismic physical model and utilize deep learning to automatically extract the implicit features of mine microseismic data. The key innovations of FDNet include an expert knowledge indicator selection method based on a subset search strategy, a mine microseismic data extraction method based on a deep convolutional neural network, and a feature deep fusion method of mine microseismic data based on an attention mechanism. We conducted a set of engineering experiments in Gaojiapu Coal Mine to evaluate the performance of FDNet. The results show that compared with the state-of-the-art data-driven machines and knowledge-driven methods, the prediction accuracy of FDNet is improved by 5% and 16%, respectively.
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Dissertations / Theses on the topic "Deep mine"

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Webber, R. C. W. "Determining the physical and economic impact of environmental design criteria for ultra-deep mines." Pretoria : [s.n.], 2006. http://upetd.up.ac.za/thesis/available/etd-07242006-105847/.

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Greth, August V. "Evaluating Mine Cooling Systems and Mine Ventilation Strategies to be Applied in Deep and Hot US Mines." Thesis, University of Nevada, Reno, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10817148.

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Metal production in the United States contributes significantly to the national and global economies due to resource demands. As mineral reserves are becoming scarce, demand has driven mining companies to operate at increasing depths underground. Along with this, production has continued to increase year after year, as lower grade ores are excavated economically. However, the increased mining depths and increased production have resulted in enlarged heat loads in the underground mine environment. Increased heat loads can result in temperatures, which are too high for mine workers to safely work. This may cause heat related illness, injuries or even death. Mine operators must pursue heat reduction strategies in order to maintain safe temperatures to protect mine workers.

There are a number of heat mitigation methods and strategies which mine operators can implement. The most common means is through the use of ventilation to provide cool air volumes to reduce the heat load and dilute the contaminants generated in the production workings below their threshold limit values (TLV). This can be done by increasing the fresh air volumes through surface accesses such as shafts, raises, adits, ramps, or other mine entrances. When ventilation alone cannot provide acceptable climatic conditions in the production workings and throughout the mine, artificial cooling methods need to be used. These methods can be very effective, however, they require large capital investments, continuous maintenance, and additional operating costs. This includes central cooling, spot cooling, and micro-climate cooling systems. Though reducing the heat load is effective, another strategy is to reduce the source of the heat generation. One such source is the heat generated by diesel engine equipment fleet. This can be decreased by switching to a battery/electric engine equipment fleet. All of these strategies can be compared based off their heat reduction, temperatures, and operating costs. This study does exactly this by using an underground metal mine’s ventilation system to compare various scenarios, and identify the most effective cooling method or system that can be used in deep and hot US mines.

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Warren, Justin Cable. "A Study of Mine-Related Seismicity in a Deep Longwall Coal Mine." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/76766.

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This study involves seismic monitoring of a deep coal mine. The purpose is to examine the processes responsible for induced seismicity. A seismic network consisting of five three-component short-period seismometers located above the mine recorded the seismic data. The events discussed here occurred from March 1, 2009 until April 7, 2011 during the mining of three longwall panels and the data was telemetered to Blacksburg, Virginia. A correlation equation was developed to relate local magnitude estimated by automatic data processing software in near real-time to seismic moment for well-recorded events. Local magnitude is a relative measure of relative size for a suite of earthquakes, while seismic moment is an objective measure of the actual physical size. Using the calculated seismic moments, we calculated "moment magnitudes" (Mw) for all events, which allowed us to do further studies in terms of their absolute size as a function of both time and space. The results indicate that there are two distinct classes of seismic events at the mine. The first class consists of small (M<=0) earthquakes recorded near the moving mine face. The second class of seismicity occurs in the mined-out "gob" area of the longwall panel at a greater distance behind the moving face. Their occurrence and relation to the mining history, depth of overburden and geology of the roof rocks is a significant interest. Results show that thick overburden due to elevated topography has a positive correlation with the number of seismic events but is not the only controlling factor; other factors include gob size and geological variability. Another important observation is the high seismic attenuation of the rock mass above the mine. This appears to be the result of the fracturing and caving processes associated with the creation of the gob and the resulting subsidence of the ground surface.
Master of Science
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Snee, Christopher Peter Michael. "The design and performance of a deep mine inset at North Selby mine." Thesis, University of Newcastle Upon Tyne, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.254317.

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Zander, Joanna. "The human factors of integrating technology into the mine countermeasures diving environment /." Burnaby B.C. : Simon Fraser University, 2006. http://ir.lib.sfu.ca/handle/1892/2654.

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Dissertation (Ph.D.) - Simon Fraser University, 2006.
Theses (School of Kinesiology) / Simon Fraser University. Includes bibliographical references. Also issued in digital format and available on the World Wide Web.
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McCoy, Kurt J. "Estimation of vertical infiltration into deep Pittsburgh coal mines of WV-PA a fluid mass balance approach /." Morgantown, W. Va. : [West Virginia University Libraries], 2002. https://etd.wvu.edu/etd/controller.jsp?moduleName=documentdata&jsp%5FetdId=2745.

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Thesis (M.S.)--West Virginia University, 2002.
Title from document title page. Document formatted into pages; contains x, 150 p. : ill. (some col.), maps (some col.). Includes abstract. Includes bibliographical references (p. 87-90).
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Kerr, Jeffrey Bryan. "Applications of Double-Difference Tomography for a Deep Hard Rock Mine." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/35850.

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Seismicity at a deep hard rock mine can be a precursor to ground failure events. Seismicity data can be used in double-difference tomography, which produce tomograms showing velocity distributions in the rock mass that can be used to infer relative stress of the rock mass. The data set used for the double-difference tomography inversion was from Creighton Mine in Sudbury, Ontario, Canada, and consisted of two months of data averaging 150 microseismic events per day. Three separate studies were conducted to evaluate the applications of double-difference tomography on a deep hard rock mine. These studies produced mine scale tomograms, stope scale tomograms of two active stopes, and stope scale tomograms for a cluster of events. TomoDD was used for the tomographic inversion, with other commercial programs used to view the results. All three studies produced results consistent with prior mine knowledge and basic concepts of rock mass stress redistribution. Mine scale tomograms accurately displayed a low velocity where the mined ore body is known to be with adjacent high velocity, stope scale tomograms of the two stopes both correctly demonstrated a low velocity relaxed zone near the stope following a production blast, and stope scale tomograms of an event cluster displayed consistency in results for two clusters in periods before, during, and after each cluster. The three studies show that double-difference tomography is a promising tool for observing rock mass stress redistribution that provides a baseline evaluation for the potential uses of the technology in a deep hard rock mine.
Master of Science
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Webb, Colin. "A continuous flow elevator to lift ore vertically for deep mine haulage using a cable disc elevator." Thesis, Federation University Australia, 2020. http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/175285.

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Vertical continuous ore haulage with elevators in mining for deep haulage is virtually non-existent. In this, research investigations concentrated on a cable disc elevator. The problem of using a cable disc elevator is the friction between the elevator fixed tube and the moving ore on the disc. This research establishes the friction forces existing as the elevator cable and discs are elevated up a stationary tube. Then the focus is to find a way to eliminate that friction. The method involved developing three test rigs: Test Rig 1 measures static friction with the ore placed on a disc in a tube mounted on load cells to measure the resistance with the ore on the disc lifted by a counterweight. This is relevant for an elevator that has stopped under load. Test Rig 2 measures the dynamic friction in an operational 5-inch elevator with the tube on the lifting side held stationary by load cells when the cable discs are lifting the ore. Test Rig 3 eliminates friction in the lifting tube by using a pipe conveyor that travels vertically at the same speed as the cable disc elevator to contain the ore on the cable disc elevator. The cable disc elevator does all the ore lifting. The research generated results for static and dynamic friction for gravel, granite and coal. Cable tension required for ore lift of 1000 metres and the maximum hoisting distance for some existing cables are calculated. Implications of this research are that the cable disc elevator has the potential to haul from depths greater than existing elevators, has a small footprint in a mine, and with some further development could eliminate the need for truck haulage in open cut and underground mining from the mine.
Doctor of Philosophy
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Wei, Wei. "Numerical modelling study of rock support system for deep mine haulage drift." Thesis, McGill University, 2010. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=95194.

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Haulage drifts are used for the transportation of blasted ore from the draw point to nearby ore pass or dumping point in sublevel mining systems. During production, haulage drifts are occupied by mine operators and haulage equipment. Therefore the stability of haulage drifts is important to the safe and uninterrupted production of a mining operation. It would be advantageous to know a priori how drift stability is influenced by mining activities in the proximity of the drift. This thesis presents the results of a study to examine drift stability and rock support system performance of a haulage drift, based on a case study of Garson mine from Vale Inco, Sudbury, Canada. The Mohr-Coulomb and Hoek-Brown models are the most widely used constitutive laws to describe the elastoplastic behaviour of rock materials under load. They are available in many numerical modeling codes including Phase2 and FLAC, which were selected to perform the numerical modeling analyses in this thesis. Consequently, the Mohr-Coulomb and Hoek-Brown constitutive models are reviewed in the first place. The finite element method is selected, together with Hoek-Brown model, to study the influencing factors of stability of haulage drift; finite difference method is chosen, along with Mohr-Coulomb model, to examine the performance of rock support system design. Much information is gathered from the mine site to help understand the entire mining environment. Parameters like rock mass character, mining plan and stress environment need to be known ahead of time in preparation for building the numerical model. Consequently, a geomechanical database named “Data Integrator for Mine Analysis and Design (DIMAND)”, including the most important features related to mining activities, has been developed. Numerical modeling results reveal that there is a dominant trend of low stress regime (postpeak) in the drift back, which results from the stoping activities in both cases of low and high horizontal to ver
Dans les opérations de minage en vrac, le minerai est transporté des points de soutirages aux chûtes à minerai grâce aux galeries de halage. Ces galeries de halage sont utilisés par le personnel quotidiennement. Donc, la stabilité des galeries de halage est primordiale pour garantir une production constante et sécuritaire. Il serait avantageux de savoir a priori comment la galerie de halage sera affectée par l'activité minière avoisinante. Ce mémoire décrit les résultats d'une étude qui examine la stabilité et la performance du soutènement d'une galerie de halage de la mine Garson, Sudbury Ontarion, Canada, propriété de Vale. Les critères de Mohr-Coulomb et de Hoek-Brown sont les plus utilisés pour décrire le comportement du massif rocheux soumis à des contraintes. Les logiciels Phase 2 et FLAC ont été retenus pour compléter l'analyse numérique de ce travail, car les critères de Mohr-Coulomb et de Hoek-Brown y sont intégrés. Pour étudier les facteurs influençant la stabilité de la galerie de halage, un code avec éléments finis (Phase2) utilisant le critère de Hoek-Brown a été choisi. Pour évaluer la performance du soutènement, un code avec différences finis (FLAC) utilisant le critère de Morh-Coulomb a été choisi. Beaucoup de données ont été obtenues de la mine Garson afin de comprendre entièrement la zone étudiée. Des paramètres tel les caractéristiques du massif rocheux, les plans miniers, le régime de contrainte, etc. sont requis pour construire le modèle numérique. Donc, une base de données géomécanique intitulée ‘Data Integrator for Mine Analysis and Design (Dimand)' répertoriant les caractéristiques critiques de l'activité minière a été développée. Les résultats de l'analyse numérique montrent un état de relaxation dans le toit de la galerie créé par l'extraction des chantiers dans les deux cas de faible et de fort rapport de la contrainte horizontale sur la contrainte
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Mate, Joseph E. "Mining task analysis: Mechanical and metabolic considerations in a deep Canadian mechanized mine." Thesis, University of Ottawa (Canada), 2007. http://hdl.handle.net/10393/27886.

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Purpose. The objective of this thesis was to examine work in mines. Specifically, part #1 performed in-situ time/motion analyses of common mining jobs and part #2 analyzed in-situ energy expenditures while working in a mine. Methodology. Part #1- task and sub-task duration and subjective work intensity were investigated for thirty eight subjects from six different mining jobs. These jobs were then organized into 4 groups for statistical analysis based on precedence: Group 1 (Bolting & Screening (attaching steel mesh to walls and ceiling), Group 2 (Conventional Mining (using a hand-held drilling carriage to drills holes in rock walls and ceiling)), Group 3 (Support Services (mechanic, welder, pipe layer)), Group 4 (Production Drill (using a machine mounted drilling unit), Scooptram(TM) (ore transport with no air conditioner), Shotcrete (concrete applied by spraying)). Part #2- In-situ metabolic energy expenditures were estimated through indirect open circuit calorimetry and deep tissue and skin temperatures were measured for those same groups. Results. Part #1- twenty three common mining tasks were identified with differences identified between various group for time and intensity. Part #2- metabolic requirements between groups were similar with one difference identified between groups 3 and 4 (P < 0.05). Deep tissue and skin temperatures did not change significantly through the course of a work day. Conclusion. Part #1- a variety of tasks is performed by each group and there is no uniform work protocol. Part #2- each mining group's metabolic energy expenditure requirements to perform various mining tasks are similar.
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Books on the topic "Deep mine"

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Coal, British. British Coal deep mine operations. London: British Coal, 1992.

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The last deep mine of Dean. Ruardean Hill: M. V. Bent, 1988.

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Tobar, Héctor. Deep down dark. London: Sceptre, 2014.

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Tobar, Héctor. Deep down dark. Rearsby, Leicester: WF Howes Ltd, 2015.

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Hause, D. R. Deep mine abandonment sealing and underground treatment to preclude acid mine drainage. S.l: s.n, 1986.

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Thimons, Edward D. Recent developments in spray cooling of deep mines. Pittsburgh, Pa: U.S. Dept. of the Interior, Bureau of Mines, 1986.

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Simmons, F. W. Physical properties of deep tilled usrface mine soils. S.l: s.n, 1992.

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Olsen, Gregg. The deep dark: Tragedy and redemption in America's richest silver mine. New York: Crown Publishers, 2005.

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Colinet, Jay. Dust control considerations for deep-cut mining when utilizing exhaust ventilation and a scrubber. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines, 1996.

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Hooks, C. L. Deep tillage effects on mine soils and row crop yields. S.l: s.n, 1987.

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Book chapters on the topic "Deep mine"

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James, Tom, and Simon Roper. "Humans Versus Machine: Who Will Mine Space?" In Deep Space Commodities, 53–67. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-90303-3_4.

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Wiltshire, John C. "Sustainable Development and Its Application to Mine Tailings of Deep Sea Minerals." In Deep-Sea Mining, 423–41. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-52557-0_14.

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Kumar, A. R., K. M. Henderson, and S. Schafrik. "Scale modeling, PIV, and LES of blowing type airflow in a deep cut continuous coal mining section." In Mine Ventilation, 65–74. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003188476-7.

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Chen, Weitao, Xianju Li, and Lizhe Wang. "Introduction to Deep Learning." In Remote Sensing Intelligent Interpretation for Mine Geological Environment, 33–89. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-3739-2_3.

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Nikolay, Belyakov. "Modeling Development of Deep Horizons of Open Pits." In Mine Planning and Equipment Selection, 43–51. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-02678-7_5.

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Oparin, V., A. Tapsiev, and A. Freidin. "Classification of Mining Methods for Deep Orebodies." In Advances in Applied Strategic Mine Planning, 559–72. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-69320-0_32.

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Paraszczak, Jacek, Kostas Fytas, and Marcel Laflamme. "Feasibility of Using Electric Trucks in Deep Metal Mines." In Mine Planning and Equipment Selection, 1265–75. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-02678-7_122.

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Chen, Weitao, Xianju Li, and Lizhe Wang. "Mine Remote Sensing Scene Classification Using Deep Learning." In Remote Sensing Intelligent Interpretation for Mine Geological Environment, 165–76. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-3739-2_7.

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Bukeikhanova, S., S. Kulniyaz, and S. Lysenko. "Principles of Cyclic-Flow Technology in the Development of Deep Pits." In Mine Planning and Equipment Selection, 65–73. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-02678-7_7.

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Sheng, Y., P. Peter, and A. R. Milnes. "Instrumentation and monitoring behaviour of uranium tailings deposited in a deep pit." In Tailings and Mine Waste 2000, 91–100. London: CRC Press, 2022. http://dx.doi.org/10.1201/9781003078579-12.

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Conference papers on the topic "Deep mine"

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Salamanca, Juan, John Jairo Niño-Merchán, and D. Castañeda. "Microgeneration of electricity using mine drainage – a proposal for deep mines." In Seventh International Conference on Deep and High Stress Mining. Australian Centre for Geomechanics, Perth, 2014. http://dx.doi.org/10.36487/acg_rep/1410_40_salamanca.

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Vatcher, Jessica, Stephen McKinnon, and Jonny Sjöberg. "Mine-scale numerical modelling, seismicity and stresses at Kiirunavaara Mine, Sweden." In Seventh International Conference on Deep and High Stress Mining. Australian Centre for Geomechanics, Perth, 2014. http://dx.doi.org/10.36487/acg_rep/1410_24_vatcher.

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Whiting, Rowland. "Stress Issues at Pajingo Mine." In Fourth International Seminar on Deep and High Stress Mining. Australian Centre for Geomechanics, Perth, 2007. http://dx.doi.org/10.36487/acg_repo/711_10.

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Kgarume, Thabang, Steve Spottiswoode, and Raymond Durrheim. "Deterministic properties of mine tremor aftershocks." In Fifth International Seminar on Deep and High Stress Mining. Australian Centre for Geomechanics, Perth, 2010. http://dx.doi.org/10.36487/acg_repo/1074_16.

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Malovichko, Dmitriy. "Discrimination of blasts in mine seismology." In Sixth International Seminar on Deep and High Stress Mining. Australian Centre for Geomechanics, Perth, 2012. http://dx.doi.org/10.36487/acg_rep/1201_11_malovichko.

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Hills, Peter. "Managing seismicity at the Tasmania Mine." In Sixth International Seminar on Deep and High Stress Mining. Australian Centre for Geomechanics, Perth, 2012. http://dx.doi.org/10.36487/acg_rep/1201_09_hills.

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Knobben, Christopher. "Seismic hazard at the Rosebery mine." In Eighth International Conference on Deep and High Stress Mining. Australian Centre for Geomechanics, Perth, 2017. http://dx.doi.org/10.36487/acg_rep/1704_01_knobben.

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Dineva, Savka, and Mirjana Boskovic. "Evolution of seismicity at Kiruna Mine." In Eighth International Conference on Deep and High Stress Mining. Australian Centre for Geomechanics, Perth, 2017. http://dx.doi.org/10.36487/acg_rep/1704_07_dineva.

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Pytel, Witold, and Jan Butra. "Mine workings design in regional pillar mining conditions — a case study from a Polish copper mine." In Fifth International Seminar on Deep and High Stress Mining. Australian Centre for Geomechanics, Perth, 2010. http://dx.doi.org/10.36487/acg_repo/1074_06.

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Arbi, Hendra, Korine Doumis, and Nathan Dalton. "Strengths and weaknesses of using elastic numerical modelling in mine design at the Callie underground mine." In Eighth International Conference on Deep and High Stress Mining. Australian Centre for Geomechanics, Perth, 2017. http://dx.doi.org/10.36487/acg_rep/1704_59_arbi.

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Reports on the topic "Deep mine"

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Oldenburg, C. M., P. F. Dobson, Y. Wu, P. J. Cook, T. J. Kneafsey, S. Nakagawa, C. Ulrich, et al. Intermediate-Scale Hydraulic Fracturing in a Deep Mine - kISMET Project Summary 2016. Office of Scientific and Technical Information (OSTI), November 2016. http://dx.doi.org/10.2172/1338937.

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Kean, B. F., and D. T. W. Evans. Geology of the Little Deer Mine. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1991. http://dx.doi.org/10.4095/132257.

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Kapriev, Georgi. COVID-19: Crisis, Social Panic, Religious and Academic Life in Bulgaria. Analogia 17 (2023), March 2023. http://dx.doi.org/10.55405/17-5-kapriev.

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This paper reflects on the effects of the COVID-19 pandemic on religious life in Bulgaria, especially in the Orthodox Church, and on the sphere of academic teaching. The picture that emerges against the background of the moderate COVID-19 measures and the non-closure of churches is rather disturbing, given the aggressive attacks by non-believers against ecclesial practice. It testifies to widespread superstition and deep theological ignorance even among those who designate themselves as ‘Orthodox Christians’. The compromise of university education during the COVID-19 panic and the radical changes to the social way of thinking go—as a basis of the perplexity of the social mind—hand in hand with the destruction of the democratic world order by Russia’s war against Ukraine.
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Buesseler, Ken O., Di Jin, Melina Kourantidou, David S. Levin, Kilaparti Ramakrishna, and Philip Renaud. The ocean twilight zone’s role in climate change. Woods Hole Oceanographic Institution, February 2022. http://dx.doi.org/10.1575/1912/28074.

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The ocean twilight zone (more formally known as the mesopelagic zone) plays a fundamental role in global climate. It is the mid-ocean region roughly 100 to 1000 meters below the surface, encompassing a half-mile deep belt of water that spans more than two-thirds of our planet. The top of the ocean twilight zone only receives 1% of incident sunlight and the bottom level is void of sunlight. Life in the ocean twilight zone helps to transport billions of metric tons (gigatonnes) of carbon annually from the upper ocean into the deep sea, due in part to processes known as the biological carbon pump. Once carbon moves below roughly 1000 meters depth in the ocean, it can remain out of the atmosphere for centuries to millennia. Without the benefits of the biological carbon pump, the atmospheric CO 2 concentration would increase by approximately 200 ppm 1 which would significantly amplify the negative effects of climate change that the world is currently trying to curtail and reverse. Unfortunately, existing scientific knowledge about this vast zone of the ocean, such as how chemical elements flow through its living systems and the physical environment, is extremely limited, jeopardizing the efforts to improve climate predictions and to inform fisheries management and ocean policy development.
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Mohammadian, Abolfazl, Amir Bahador Parsa, Homa Taghipour, Amir Davatgari, and Motahare Mohammadi. Best Practice Operation of Reversible Express Lanes for the Kennedy Expressway. Illinois Center for Transportation, September 2021. http://dx.doi.org/10.36501/0197-9191/21-033.

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Reversible lanes in Chicago’s Kennedy Expressway are an available infrastructure that can significantly improve traffic performance; however, a special focus on congestion management is required to improve their operation. This research project aims to evaluate and improve the operation of reversible lanes in the Kennedy Expressway. The Kennedy Expressway is a nearly 18-mile-long freeway in Chicago, Illinois, that connects in the southeast to northwest direction between the West Loop and O’Hare International Airport. There are two approximately 8-mile reversible lanes in the Kennedy Expressway’s median, where I-94 merges into I-90, and there are three entrance gates in each direction of this corridor. The purpose of the reversible lanes is to help the congested direction of the Kennedy Expressway increase its traffic flow and decrease the delay in the whole corridor. Currently, experts in a control location switch the direction of the reversible lanes two to three times per day by observing real-time traffic conditions captured by a traffic surveillance camera. In general, inbound gates are opened and outbound gates are closed around midnight because morning traffic is usually heavier toward the central city neighborhoods. In contrast, evening peak-hour traffic is usually heavier toward the outbound direction, so the direction of the reversible lanes is switched from inbound to outbound around noon. This study evaluates the Kennedy Expressway’s current reversing operation. Different indices are generated for the corridor to measure the reversible lanes’ performance, and a data-driven approach is selected to find the best time to start the operation. Subsequently, real-time and offline instruction for the operation of the reversible lanes is provided through employing deep learning and statistical techniques. In addition, an offline timetable is also provided through an optimization technique. Eventually, integration of the data-driven and optimization techniques results in the best practice operation of the reversible lanes.
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Beck, Aaron. RiverOceanPlastic: Land-ocean transfer of plastic debris in the North Atlantic, Cruise No. AL534/2, 05 March – 26 March 2020, Malaga (Spain) – Kiel (Germany). GEOMAR Helmholtz Centre for Ocean Research Kiel, 2020. http://dx.doi.org/10.3289/cr_al534-2.

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Cruise AL534/2 is part of a multi-disciplinary research initiative as part of the JPI Oceans project HOTMIC and sought to investigate the origin, transport and fate of plastic debris from estuaries to the oceanic garbage patches. The main focus of the cruise was on the horizontal transfer of plastic debris from major European rivers into shelf regions and on the processes that mediate this transport. Stations were originally chosen to target the outflows of major European rivers along the western Europe coast between Malaga (Spain) and Kiel (Germany), although some modifications were made in response to inclement weather. In total, 16 stations were sampled along the cruise track. The sampling scheme was similar for most stations, and included: 1) a CTD cast to collect water column salinity and temperature profiles, and discrete samples between surface and seafloor, 2) sediment sampling with Van Veen grab and mini-multi corer (mini-MUC), 3) suspended particle and plankton sampling using a towed Bongo net and vertical WP3 net, and 4) surface neusten sampling using a catamaran trawl. At a subset of stations with deep water, suspended particles were collected using in situ pumps deployed on a cable. During transit between stations, surface water samples were collected from the ship’s underway seawater supply, and during calm weather, floating litter was counted by visual survey teams. The samples and data collected on cruise AL534/2 will be used to determine the: (1) abundance of plastic debris in surface waters, as well as the composition of polymer types, originating in major European estuaries and transported through coastal waters, (2) abundance and composition of microplastics (MP) in the water column at different depths from the sea surface to the seafloor including the sediment, (3) abundance and composition of plastic debris in pelagic and benthic organisms (invertebrates), (4) abundance and identity of biofoulers (bacteria, protozoans and metazoans) on the surface of plastic debris from different water depths, (5) identification of chemical compounds (“additives”) in the plastic debris and in water samples.
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Tayeb, Shahab. Taming the Data in the Internet of Vehicles. Mineta Transportation Institute, January 2022. http://dx.doi.org/10.31979/mti.2022.2014.

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As an emerging field, the Internet of Vehicles (IoV) has a myriad of security vulnerabilities that must be addressed to protect system integrity. To stay ahead of novel attacks, cybersecurity professionals are developing new software and systems using machine learning techniques. Neural network architectures improve such systems, including Intrusion Detection System (IDSs), by implementing anomaly detection, which differentiates benign data packets from malicious ones. For an IDS to best predict anomalies, the model is trained on data that is typically pre-processed through normalization and feature selection/reduction. These pre-processing techniques play an important role in training a neural network to optimize its performance. This research studies the impact of applying normalization techniques as a pre-processing step to learning, as used by the IDSs. The impacts of pre-processing techniques play an important role in training neural networks to optimize its performance. This report proposes a Deep Neural Network (DNN) model with two hidden layers for IDS architecture and compares two commonly used normalization pre-processing techniques. Our findings are evaluated using accuracy, Area Under Curve (AUC), Receiver Operator Characteristic (ROC), F-1 Score, and loss. The experimentations demonstrate that Z-Score outperforms no-normalization and the use of Min-Max normalization.
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Gilkeson, G. G., A. C. Dudley, J. G. EuDaly, M. M. Peden-Adams, and D. E. Keil. Effects of Concurrent Exposure to N,N-Diethyl-m-Toluamide (DEET), Pyridostigmine Bromide (PYR), and Exercise Stress on Biomarkers of Immune Function in B6C3F1 Mice. Fort Belvoir, VA: Defense Technical Information Center, March 2001. http://dx.doi.org/10.21236/ada402119.

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Tynan, Mark C., Glenn P. Russell, and Frank V. Perry. Global Survey of Selected Deep Underground Facilities; Examples of Geotechnical and Engineering Capabilities, Achievements, Challenges(Mines, Shafts, Tunnels, Boreholes, Sites and Underground Facilities for Nuclear Waste and Physics R&D):A Guide. Office of Scientific and Technical Information (OSTI), December 2018. http://dx.doi.org/10.2172/1484716.

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Gilkeson, G. G., A. C. Dudley, J. G. EuDaly, M. M. Peden-Adams, and D. E. Keil. Concurrent Exposure to N, N-Diethyl-m-Toluamide (DEET), Pyridostigmine Bromide (PYR), and JP-8 Jet Fuel Effects on Biomarkers of Immune Function in B6C3F1 Mice. Fort Belvoir, VA: Defense Technical Information Center, March 2001. http://dx.doi.org/10.21236/ada402120.

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