Steam And Environmental Justice In An Interdisciplinary Context,
2023
Colorado School of Mines
Steam And Environmental Justice In An Interdisciplinary Context, Paula Farca, Alina Handorean, Jürgen Brune
The Transdisciplinary STEAM+ Journal
This course proposes an interdisciplinary perspective, envisions unique synergies between environmental justice concepts and STEAM projects on mining, and aims to solidify a foundation based on justice, equity, equality, and empathy for STEM students and faculty. Our (S)TEAM made of professors in three academic departments underscores interdisciplinary and diversity connections through an interdisciplinary team-taught course, units on environmental justice related to mining, teaching of literary texts, and STEAM projects. We also involved faculty, alumni, and our campus and city community through STEAM exhibits.
Wildfire Risk Zone Mapping In Contrasting Climatic Conditions: An Approach Employing Ahp And F-Ahp Models,
2023
Symbiosis Institute of Geoinformatics
Wildfire Risk Zone Mapping In Contrasting Climatic Conditions: An Approach Employing Ahp And F-Ahp Models, Aishwarya Sinha, Suresh Nikhil, Rajendran Shobha Ajin, Jean Homian Danumah, Sunil Saha, Romulus Costache, Ambujendran Rajaneesh, Kochappi Sathyan Sajinkumar, Kolangad Amrutha, Alfred Johny, Fahad Marzook, Pratheesh Chacko Mammen, Kamal Abdelrahman, Mohammed S. Fnais, Mohamed Abioui
Michigan Tech Publications, Part 1
Wildfires are one of the gravest and most momentous hazards affecting rich forest biomes worldwide; India is one of the hotspots due to its diverse forest types and human-induced reasons. This research aims to identify wildfire risk zones in two contrasting climate zones, the Wayanad Wildlife Sanctuary in the Western Ghats and the Kedarnath Wildlife Sanctuary in the Himalayas, using geospatial tools, analytical hierarchy process (AHP), and fuzzy-AHP models to assess the impacts of various conditioning factors and compare the efficacy of the two models. Both of the wildlife sanctuaries were severely battered by fires in the past, with more …
Investigating Strength Anisotropy Of Plain And Steel Fiber Reinforced Shotcrete,
2023
Missouri University of Science and Technology
Investigating Strength Anisotropy Of Plain And Steel Fiber Reinforced Shotcrete, Muhammad Usman Khan, Muhammad Usman Tahir, Muhammad Zaka Emad, Muhammad Azeem Raza, Saqib Ahmad Saki
Mining Engineering Faculty Research & Creative Works
Shotcrete is a key initial rock support component used in underground mining and civil projects. The strength of shotcrete plays a vital role in providing and deciding the support adequacy. The strength of shotcrete is evaluated by its uniaxial compressive strength (UCS) test that is usually conducted on extracted core samples. Shotcrete cores are commonly extracted from the test panels along the direction of its application; thus, its strength perpendicular to the direction of application is often neglected. The true bearing strength of shotcrete is thereby ignored despite the fact that higher stresses act normal to the direction of its …
A Critical Comparison Of Interpolation Techniques For Digital Terrain Modelling In Mining,
2023
Missouri University of Science and Technology
A Critical Comparison Of Interpolation Techniques For Digital Terrain Modelling In Mining, M. A. Raza, A. Hassan, M. U. Khan, M. Z. Emad, S. A. Saki
Mining Engineering Faculty Research & Creative Works
Digital modelling of a surface is crucial for Earth science and mining applications for many reasons. These days, high-tech digital representations are used to produce a high-fidelity topographic surface in the form of a digital terrain model (DTM). DTMs are created from 2D data-points collected by a variety of techniques such as traditional ground surveying, image processing, LiDAR, radar, and global positioning systems. At the points for which data is not available, the heights need to be interpolated or extrapolated from the points with measured elevations. There are several interpolation/extrapolation techniques available, which may be categorized based on criteria such …
Laboratory-Scale Investigation On Shear Behavior Of Non-Persistent Joints And Joint Infill Using Lattice-Spring-Based Synthetic Rock Mass Model,
2023
Missouri University of Science and Technology
Laboratory-Scale Investigation On Shear Behavior Of Non-Persistent Joints And Joint Infill Using Lattice-Spring-Based Synthetic Rock Mass Model, Mariam Al-E'Bayat, Taghi Sherizadeh, Dogukan Guner
Mining Engineering Faculty Research & Creative Works
Discontinuities Mainly Control the Mechanical Behavior of Rock Mass and Cause a Significant Reduction in the Rock Mass Strength. Joint Persistency and Joint Infill Conditions Are Considered the Most Significant Joint Parameters that Control the Mechanical Response of Rock Mass. in This Study, Numerical and Statistical Analyses Were Performed on Pre-Cracked Specimens with Two Flaws to Investigate the Effect of Joint Persistence Parameters on Shear Strength. in Addition, an Extensive Study Was Conducted to Explore the Effect of Infilled Mineral Strength, Infill Thickness, and Infill Wall Roughness on Shear Strength. the Lattice-Spring-Based Synthetic Rock Mass (LS-SRM) Approach Was Utilized to …
Water-Cased Kicker Charges For Use In Explosive Demolition,
2023
Missouri University of Science and Technology
Water-Cased Kicker Charges For Use In Explosive Demolition, Rachel L. Bauer, Paul Pitzel, Emily M. Johnson, Catherine E. Johnson
Mining Engineering Faculty Research & Creative Works
Demolition Projects Involving Explosives Often Incorporate Cutting Charges to Sever Columns in Conjunction with Kicker Charges that "Move" the Columns Out of Alignment. Traditional Kicker Charges Use Dynamite Secured to the Column above a Linear-Shaped Cutting Charge. This Study Investigates the Use of Water-Cased Kicker Charges for Use in Explosive Demolition. the Goal is to Reduce the Fragmentation of Steel Members and the Quantity of Explosive Needed Due to the Increased Density, Incompressibility, and Impedance Mismatch Water Provides. Simulations and Experimental Tests Were Utilized to Determine What Type of Charges Provide the Optimal Column Movement and Water Placement. Water Charges …
Landslide Susceptibility Assessment Of A Part Of The Western Ghats (India) Employing The Ahp And F-Ahp Models And Comparison With Existing Susceptibility Maps,
2023
Pondicherry University
Landslide Susceptibility Assessment Of A Part Of The Western Ghats (India) Employing The Ahp And F-Ahp Models And Comparison With Existing Susceptibility Maps, Sheela Bhuvanendran Bhagya, Anita Saji Sumi, Sankaran Balaji, Jean Homian Danumah, Romulus Costache, Ambujendran Rajaneesh, Ajayakumar Gokul, Chandini Padmanabhapanicker Chandrasenan, Renata Pacheco Quevedo, Alfred Johny, Kochappi Sathyan Sajinkumar, Sunil Saha, Rajendran Shobha Ajin, Pratheesh Chacko Mammen, Kamal Abdelrahman, Mohammed S. Fnais, Mohamed Abioui
Michigan Tech Publications, Part 1
Landslides are prevalent in the Western Ghats, and the incidences that happened in 2021 in the Koottickal area of the Kottayam district (Western Ghats) resulted in the loss of 10 lives. The objectives of this study are to assess the landslide susceptibility of the high-range local self-governments (LSGs) in the Kottayam district using the analytical hierarchy process (AHP) and fuzzy-AHP (F-AHP) models and to compare the performance of existing landslide susceptible maps. This area never witnessed any massive landslides of this dimension, which warrants the necessity of relooking into the existing landslide-susceptible models. For AHP and F-AHP modeling, ten conditioning …
A Cohort Retrospective Study Of Framingham Score And Ecg Abnormality Among Coal Mining Workers,
2023
Occupational Medicine Study Program, Universitas Indonesia, Jakarta, 10310, Indonesia.
A Cohort Retrospective Study Of Framingham Score And Ecg Abnormality Among Coal Mining Workers, Faizal Ablansah Anandita, Isman Firdaus, Rino Alvani Gani, Retno Asti Werdhani, Muchtaruddin Mansyur
Occupational and Environmental Medicine Journal of Indonesia
Introduction. ECG is widely used for detecting cardiovascular disease in coal mine worker’s medical check-up. As the study has proven, coal mine workers have a double cardiovascular risk from their workplace hazard and their own medical risks as individuals. An early detection and risk assessment method is needed to predict ECG abnormalities in the future. This study will analyze the relationship between ECG abnormality and Framingham Risk Score on coal mine workers’. Methods. We examine ECG result from medical check-up of male coal worker during 2018 and 2021. Using Minnesota Code, we determine ECG abnormality categories in the 2021 result, …
Adoption Of Astm A956-06 Leeb Hardness Testing Standard To Rock Engineering Applications,
2023
Missouri University of Science and Technology
Adoption Of Astm A956-06 Leeb Hardness Testing Standard To Rock Engineering Applications, Sasan Ghorbani, Seyed Hadi Hoseinie, Ebrahim Ghasemi, Taghi Sherizadeh
Mining Engineering Faculty Research & Creative Works
The Leeb dynamic hardness test was originally developed for metallic materials and is now widely used in rock engineering and engineering geology. This study aims to fundamentally investigate the application conditions of the Leeb hardness test in rock engineering because it is a high-precision, fast, nondestructive, and portable method. Therefore, four main limitations of the Leeb method mentioned in ASTM A956-06 have been further analyzed. The important challenges, including scale effect, temperature effect, surface roughness effect, and the effect of physical properties on the Leeb method, have been studied. For this purpose, 33 rock samples with a wide range of …
Acknowledgments Of Reviewers,
2023
Central Mining Institute
Hitting Two Birds With One Emissions-Based Maintenance Stone – A Literature Review On Improving Overall Productivity Of Underground Diesel Fleets,
2023
University of Wollongong, Faculty of Arts, Social Sciences and Health, School of Health and Society, Wollongong, NSW 2522, Australia
Hitting Two Birds With One Emissions-Based Maintenance Stone – A Literature Review On Improving Overall Productivity Of Underground Diesel Fleets, Johannes Deon Swanepoel, Jennifer Hines, Vinod Gopaldasani, Brian Davies
Journal of Sustainable Mining
Many industries regard occupational health and safety as a core value and an integral component to maintaining high productivity, and, thus, shareholder value. Diesel fleets’ engine maintenance is instrumental in ensuring affected workplaces meet production requirements while controlling health and safety hazards that these fleets introduce to the workplace. This systematic literature review focuses on production and occupational health and safety advantages associated with the implementation and adherence to an emissions-based maintenance (EBM) program. The literature review was conducted across eight databases relevant to workplace health and engineering. To be eligible for inclusion, the publication had to contain maintenance interventions …
Research On Vibration-Based Early Diagnostic System For Excavator Motor Bearing Using 1-D Cnn,
2023
Akita University, Faculty of International Resource Sciences, Japan
Research On Vibration-Based Early Diagnostic System For Excavator Motor Bearing Using 1-D Cnn, Dorjsuren Yandagsuren, Tatsuki Kurauchi, Hisatoshi Toriya, Hajime Ikeda, Tsuyoshi Adachi, Youhei Kawamura
Journal of Sustainable Mining
In mining, super-large machines such as rope excavators are used to perform the main mining operations. A rope excavator is equipped with motors that drive mechanisms. Motors are easily damaged as a result of harsh mining conditions. Bearings are important parts in a motor; bearing failure accounts for approximately half of all motor failures. Failure reduces work efficiency and increases maintenance costs. In practice, reactive, preventive, and predictive maintenance are used to minimize failures. Predictive maintenance can prevent failures and is more effective than other maintenance. For effective predictive maintenance, a good diagnosis is required to accurately determine motor-bearing health. …
A Dtn-Based Spatio-Temporal Routing Using Location Prediction Model In Underground Mines,
2023
Missouri University of Science and Technology
A Dtn-Based Spatio-Temporal Routing Using Location Prediction Model In Underground Mines, Abhay Goyal, Sanjay Kumar Madria, Samuel Frimpong
Computer Science Faculty Research & Creative Works
Situational awareness during any disaster depends on effective communication and location tracking. In the case of underground mines, where the communication methods are mostly central, the whole communication channel would be rendered unusable during a disaster. To this end, we propose the use of Delay Tolerant Networks (DTN) to allow the miners to function in a distributed manner and help in locating the injured miners and routing distress messages. Due to the unavailability of GPS signals, the pillar numbers are used to identify the locations of the miners. For spatio-temporal routing of messages, we formulate a new scheme using Contact …
Version 2 Of The Global Catalogue Of Large Anthropogenic And Volcanic So2 Sources And Emissions Derived From Satellite Measurements,
2023
Environment and Climate Change Canada
Version 2 Of The Global Catalogue Of Large Anthropogenic And Volcanic So2 Sources And Emissions Derived From Satellite Measurements, Vitali E. Fioletov, Chris A. Mclinden, Debora Griffin, Ihab Abboud, Nickolay Krotkov, Peter J.T. Leonard, Can Li, Joanna Joiner, Nicolas Theys, Simon Carn
Michigan Tech Publications, Part 1
Sulfur dioxide (SO2) measurements from the Ozone Monitoring Instrument (OMI), Ozone Mapping and Profiler Suite (OMPS), and TROPOspheric Monitoring Instrument (TROPOMI) satellite spectrometers were used to update and extend the previously developed global catalogue of large SO2 emission sources. This version 2 of the global catalogue covers the period of 2005-2021 and includes a total of 759 continuously emitting point sources releasing from about 10 ktyr-1 to more than 4000 ktyr-1 of SO2, that have been identified and grouped by country and primary source origin: volcanoes (106 sources); power plants (477); smelters (74); and sources related to the oil and …
Underestimated Passive Volcanic Sulfur Degassing Implies Overestimated Anthropogenic Aerosol Forcing,
2023
University of Washington
Underestimated Passive Volcanic Sulfur Degassing Implies Overestimated Anthropogenic Aerosol Forcing, U. A. Jongebloed, A. J. Schauer, J. Cole-Dai, C. G. Larrick, R. Wood, T. P. Fischer, S. A. Carn, S. Salimi, S. R. Edouard, S. Zhai, L. Geng, B. Alexander
Michigan Tech Publications, Part 1
The Arctic is warming at almost four times the global rate. An estimated sixty percent of greenhouse-gas-induced Arctic warming has been offset by anthropogenic aerosols, but the contribution of aerosols to radiative forcing (RF) represents the largest uncertainty in estimating total RF, largely due to unknown preindustrial aerosol abundance. Here, sulfur isotope measurements in a Greenland ice core show that passive volcanic degassing contributes up to 66 ± 10% of preindustrial ice core sulfate in years without major eruptions. A state-of-the-art model indicates passive volcanic sulfur emissions influencing the Arctic are underestimated by up to a factor of three, possibly …
Predicting Young’S Modulus Of Indian Coal Measure Rock Using Multiple Regression And Artificial Neutral Network,
2023
Department of Mining Engineering, Indian Institute of TechnologyKharagpur, India
Predicting Young’S Modulus Of Indian Coal Measure Rock Using Multiple Regression And Artificial Neutral Network, Sayantan Chakraborty, Rohan Bisai, Rohit Roy, Sathish Kumar Palaniappan, Samir Kumar Pal, Karanam Uma Maheshwar Rao
Journal of Sustainable Mining
Accurate information on Young’s modulus (E) is required for simulating rock deformation in mines; on the other hand, it is very cumbersome to obtain in the laboratory and collecting drilled cores in sufficient amounts, especially in the case of soft rocks, is quite impossible. Empirical equations were deducted for E from easily determinable rock properties, and the final model was selected through different statistical strength parameter tests. The generalization of the equation was verified through the normal distribution tests of residues of the equation. R2 came to be 0.609 and was validated using an artificial neural network with an improved …
Gravity And Electrostatic Separation Of Unburned Coal From A Selected Fly Ash,
2023
Central Mining Institute, Department of Environmental Monitoring, Poland
Gravity And Electrostatic Separation Of Unburned Coal From A Selected Fly Ash, Krzysztof Wierzchowski, Agnieszka Klupa, Barbara Białecka, Joanna Całus Moszko
Journal of Sustainable Mining
Unburned coal grains make it difficult to use fly ash economically, which causes energy losses in the fuel. The article presents the possibilities of separating unburned coal from selected fly ash. In order to assess the possibility of separation of unburned carbon, the analysis of grain density and ash composition was used. Unburned coal was separated by four methods – one wet gravity and three dry methods. It has been found that despite very fine ash grains, the quality and quantity of separation products are significantly dependent on the separation method used and the separated grains’ qualitative characteristics. The analysis …
Exploring The Characterization, Liberation And Flotation Response Of A Nigerian Low-Grade Copper Ore,
2023
Mineral Processing Research Centre, Department of Metallurgy, University of Johannesburg, Doornfontein Campus, P O Box 17911, Johannesburg 2028, South Africa
Exploring The Characterization, Liberation And Flotation Response Of A Nigerian Low-Grade Copper Ore, Willie Nheta, Omoyemi O. Ola-Omole
Journal of Sustainable Mining
This study explores the characterization, liberation and flotation response of low-grade copper ore from Anka area, Zamfara state Nigeria. The ore was crushed, milled and sieved in accordance with BS 410 standard. It was characterized with XRD, XRF, SEM-EDS and AAS. Froth flotation was carried out with varying %solids, pH, retention time and collector dosages using SEX and sodium oleate. Particle size distribution of the ore shows its economic liberation between -150 and +106 µm while 80% passing corresponds to 175.7 µm using the Gaudin Schuhmann equation. However, according to metallurgical balance calculation, 63 µm proved to have the highest …
Production Management System In A Modern Coal And Coke Company Based On The Demand And Quality Of The Exploited Raw Material In The Aspect Of Building A Service-Oriented Architecture,
2023
Polish Academy of Sciences, Mineral and Energy Economy Research Institute, Kraków, Poland, 0000-0001-6387-5339
Production Management System In A Modern Coal And Coke Company Based On The Demand And Quality Of The Exploited Raw Material In The Aspect Of Building A Service-Oriented Architecture, Artur Dyczko
Journal of Sustainable Mining
The paper deals with the implementation of the JSW Capital Group’s (Poland) Demand and Quality Driven Production Management System (SPPJ – System Zarządzania Produkcją oparty na Popycie i Jakości) using a service-oriented architecture (SOA). The main components of the SPPJ architecture have been characterized, and the scope of their integration has been defined. The individual parts in the first area, i.e. quality management, have been described in detail. Due to the extensive nature of the issue, components in other areas, i.e. planning and scheduling, coal extraction and processing, coke production, as well as sales and logistics, have only been signalled. …
Simplified Cost Models For Underground Mine Evaluation A Handbook For Quick Prefeasibility Cost Estimates - Revised Edition,
2023
Montana Tech
Simplified Cost Models For Underground Mine Evaluation A Handbook For Quick Prefeasibility Cost Estimates - Revised Edition, Thomas W. Camm, Scott A. Stebbins
Mining Engineering
This handbook provides simplified cost models for evaluating underground mines. Regression analysis is used to generate capital and operating cost equations for each model in the form Y = AXB, where Y is the cost estimated and X is the assumed production capacity in tonnes per day. A and B are constants determined by the regression analysis. Equations are developed for operating costs in five subcategories: equipment operation, supplies, hourly labor, administration, and sundries. Subcategories for capital costs are: equipment purchase, preproduction underground excavation, surface facilities, engineering & management, contingency, and working capital. Cost models are developed for eight underground …
