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Assessing The Perception Gap: Mining Impacts From Community And Company Perspectives In Nigeria, Ikechukwu Mbachu Jan 2025

Assessing The Perception Gap: Mining Impacts From Community And Company Perspectives In Nigeria, Ikechukwu Mbachu

Journal of Sustainable Mining

The study intends to evaluate how mining companies and their host communities perceive the impacts of mining operations and to ascertain if there are significant differences in how both parties perceive the impacts of mining in Nigeria. The study was carried out in twelve states in Nigeria and covered the six geopolitical zones in Nigeria. Data was collected through a questionnaire and interviews carried out separately with community members and company representatives. The study investigated ten categories of mining impacts such as socioeconomic, environmental, health, physical and so on. To gauge the perceptions of the respondents on the different impact …


Effect Of Depth And Particle Size On Spontaneous Combustion Of Coal In Deep Underground Mines Of Jharia Coalfield, Debashish Mishra, D.P. Mishra, N K Mohalik, S K Ray, J K Pandey Jan 2025

Effect Of Depth And Particle Size On Spontaneous Combustion Of Coal In Deep Underground Mines Of Jharia Coalfield, Debashish Mishra, D.P. Mishra, N K Mohalik, S K Ray, J K Pandey

Journal of Sustainable Mining

Since their inception, the deep mines have faced the challenges of spontaneous heating and fire. The study examines the impact of coal seam depth and particle size on the spontaneous combustion of coal. A spontaneous heating study of seven coal samples shows moisture, volatile matter, and ash do not exhibit any clear trend except for fixed carbon, which shows a direct relationship. However, crossing point temperature (CPT) and thermo-gravimetric (TGignition) temperature reveal an inverse relationship between spontaneous combustion and the depth of the coal seam. Five size ranges: < 106, 106–212, 212–425, 425–2000, and 0–212 µm are studied, which displayed an increase in mean specific surface area (SSA) by 87% and a decrease in …


Mineralogical Analysis And Beneficiation Assessment To Unlock The Lithium Potential In Kenticha Pegmatite Ore, Gutema Mekonen, Mulugeta Sisay, Goitom Gebreyohannes Jan 2025

Mineralogical Analysis And Beneficiation Assessment To Unlock The Lithium Potential In Kenticha Pegmatite Ore, Gutema Mekonen, Mulugeta Sisay, Goitom Gebreyohannes

Journal of Sustainable Mining

Lithium is utilized in various industries, especially currently Lithium-ion batteries are employed in electric vehicles and portable electronic devices as an energy source, in pharmaceutical industries, aerospace applications, glass and ceramics production, lubricants and greases, air purification systems, nuclear power, and aluminum production. The Kenticha pegmatite ore deposit in Ethiopia holds potential, and this study analyzed the mineralization of Kenticha spodumene ore and assessed its suitability for beneficiation by employing X-ray diffraction (XRD), Atomic Absorption Spectroscopy (AAS), and petrographic microscope analysis. The study determined the mineral composition, average composition, and texture of spodumene pegmatite ore for spodumene concentrate liberation. Based …


Potential Impact Of Coal Mining And Use For Electricity Generation In Brazil On Global Warming., Marisa Nascimento, Paulo Sergio Moreira Soares Jan 2025

Potential Impact Of Coal Mining And Use For Electricity Generation In Brazil On Global Warming., Marisa Nascimento, Paulo Sergio Moreira Soares

Journal of Sustainable Mining

The study aims to evaluate the potential contribution of coal production for electric power generation in Brazil to greenhouse gases (GHG) emissions, applying life cycle assessment (LCA). The product system studied consists of mining, transportation of the coal to the power station, and power generation. The LCA was first developed only for coal mining in Brazil. Secondly, it was enlarged to include transportation of the coal domestically produced, the hard coal imported, and power generation (Integrated System BR). In the mining stage in Brazil (Brazilian coal), the contribution to the global warming potential was estimated at 237 kg of CO …


Determination Of The Liberation Size Of Mekaneselam Iron Ore In The Southern Wollo Zone, Northern Ethiopia: Implications For Beneficiation, Getahun Meseret, Bisrat Kebede, Belayneh Digafe Jan 2025

Determination Of The Liberation Size Of Mekaneselam Iron Ore In The Southern Wollo Zone, Northern Ethiopia: Implications For Beneficiation, Getahun Meseret, Bisrat Kebede, Belayneh Digafe

Journal of Sustainable Mining

Previous investigations in the target area primarily focused on ore genesis or the geological formations of the ore deposit, neglecting the specific beneficiation aspects associated with the ore. Due to gaps with respect to beneficiation aspects,the research aimed to determine the liberation size of the target iron-bearing ore mineral through mineralogical identification, chemical composition analysis, and examination of the particle size distribution. In this study, various methods were employed, including atomic absorption spectrometry (AAS), X-ray fluorescence (X-RF), X-ray diffraction (XRD) analysis, and sieve analysis. The chemical composition analysis of Mekaneselam iron ore revealed significant amount of 16.55–77.59 % Fe2O3, 7.31–59.02% …


Leveraging Intrinsic Properties For Classification Of Coal Seams Towards Spontaneous Combustion Proclivity And Predicting Susceptibility Using Machine Learning: Smart And Sustainable Mining Approach, Siddhartha Agarwal, Pradeep K. Gautam, Yuhao Zou, Rishabh Dwivedi, D.C. Panigrahi, C. Dagli, Atul Singh Jan 2025

Leveraging Intrinsic Properties For Classification Of Coal Seams Towards Spontaneous Combustion Proclivity And Predicting Susceptibility Using Machine Learning: Smart And Sustainable Mining Approach, Siddhartha Agarwal, Pradeep K. Gautam, Yuhao Zou, Rishabh Dwivedi, D.C. Panigrahi, C. Dagli, Atul Singh

Journal of Sustainable Mining

Mine fires and other hazards caused by spontaneous coal combustion are a pervasive and longstanding issue in Jharia coalfields, India. This study proposes a novel approach to classify coal seams based on their propensity to spontaneous combustion using the intrinsic properties of 30 coal samples from different seams. This method eliminates the need for expensive and time-consuming experimental determinations of susceptibility indices (SI) such as crossing point temperature (CPT), critical air blast (CAB), and differential thermal analysis (DTA). All clustering models, viz. hierarchical, k-means, and multidimensional scaling, aptly classify coal seams into three categories: highly risky, medium risky, and low …


A Dynamic Intuitionistic Fuzzy Group Decision Analysis For Sustainability Risk Assessment In Surface Mining Operation Projects, Mohammad Panahi Borujeni, Arash Behzadipour, Hossein Gitinavard Jan 2025

A Dynamic Intuitionistic Fuzzy Group Decision Analysis For Sustainability Risk Assessment In Surface Mining Operation Projects, Mohammad Panahi Borujeni, Arash Behzadipour, Hossein Gitinavard

Journal of Sustainable Mining

With the increasing advancement of technology and science in the fields of engineering, different industries have different benefits that can help the global community in areas related to social, environmental, and economic requirements. The mining industry is one of the suitable sources of wealth production in different societies, which leads different societies to appropriate profitability. In this regard, one of the challenges facing managers and decision-makers is not related to financial challenges and risks. This research uses the dynamic intuitionistic fuzzy entropy method to compute the criteria weights, and the dynamic intuitionistic fuzzy maximizing similarity (DIF-SM) approach to compute the …


An Automated Integrated Web-Based Smart Tool For Open Stope Design, Yerkezhan Madenova, Fidelis Suorineni, Shuai Xu Jan 2025

An Automated Integrated Web-Based Smart Tool For Open Stope Design, Yerkezhan Madenova, Fidelis Suorineni, Shuai Xu

Journal of Sustainable Mining

The Stability Graph is a widely used tool for the design of open stopes in underground mining. Many users of the Stability Graph still apply this design method manually. Although the manual approach has benefits, using multiple graphs and stability number computation charts for each stope surface is time-consuming, even for the experienced mining engineer. Current practice in the use of the method also limits data sharing. This paper presents a StopeSoft web-based tool for open stope stability prediction that is developed on the basis of the Stability Graph method and is available at openstope.com. StopeSoft incorporates flexibility in terms …


Reproductive Costs In Female, Island-Dwelling Eastern Diamondback Rattlesnakes (Crotalus Adamanteus), Emily R. Gray Jan 2025

Reproductive Costs In Female, Island-Dwelling Eastern Diamondback Rattlesnakes (Crotalus Adamanteus), Emily R. Gray

Theses, Dissertations and Capstones

Eastern Diamondback Rattlesnakes (Crotalus adamanteus; EDBs) are a declining species endemic to the Southeastern Coastal Plain. Reproduction is costly for females, which are ovoviviparous, slow to mature, reproduce infrequently, and are often emaciated after parturition. Yet, we have a limited understanding of the trade-offs associated with their reproductive biology. Thus, I had three objectives: 1) assess reproduction-associated water stress and determine how female EDBs respond to altered water budgets in situ (Chapter 1), 2) evaluate the interactive effects of body condition and rainfall on female hydration, with a special focus on musculature as a condition index (Chapter 1), …


Investigating Drivers In Phytoplankton Between Lentic And Lotic Ecosystems Within Twelvepole Creek Watershed, Devin Lee Farmer Jan 2025

Investigating Drivers In Phytoplankton Between Lentic And Lotic Ecosystems Within Twelvepole Creek Watershed, Devin Lee Farmer

Theses, Dissertations and Capstones

Harmful Algal Blooms (HABs) threaten aquatic ecosystems, local economies, and water quality. While extensively studied in lakes (lentic systems), their impact on flowing waters (lotic systems) remains underexplored. This study examined algal drivers in both ecosystems within the same watershed, focusing on Beech Fork Lake (lentic) and Twelve Pole Creek (lotic). Key environmental factors, including pH, turbidity, dissolved oxygen, and nutrient levels, were measured using in situ sensors and laboratory analysis. Water samples were analyzed for nitrogen, phosphorus, and algal biomass for comparison to environmental conditions. Phytoplankton was preserved for identification in future research. By comparing these environments, this study …


Does Biofluorescence Enhance Visual Signals In Birds-Of-Paradise?, R. P. Martin, E. M. Carr, J. S. Sparks Jan 2025

Does Biofluorescence Enhance Visual Signals In Birds-Of-Paradise?, R. P. Martin, E. M. Carr, J. S. Sparks

School of Natural Resources: Faculty Publications

No abstract provided.


Impacts Of Irrigated And Non-Irrigated Land Use On Convective Environments And Related Diagnostic Variables During Grainex In Nebraska, Usa, Daniel Whitesel, Rezaul Mamood Jan 2025

Impacts Of Irrigated And Non-Irrigated Land Use On Convective Environments And Related Diagnostic Variables During Grainex In Nebraska, Usa, Daniel Whitesel, Rezaul Mamood

School of Natural Resources: Faculty Publications

No abstract provided.


Woody Plant Reinvasion Shortens The Lifespan Of Grassland Restoration Treatments, D. T. Fogarty, M. Beadle, C. R. Allen, C. Bielski, D. Twidwell Jan 2025

Woody Plant Reinvasion Shortens The Lifespan Of Grassland Restoration Treatments, D. T. Fogarty, M. Beadle, C. R. Allen, C. Bielski, D. Twidwell

School of Natural Resources: Faculty Publications

No abstract provided.


Heat Stress Induced By Irrigation Over The Us Great Plains And Related Uncertainties, L. Chen, I. C. Achugbu, Rezaul Mamood, K. Kintziger, J. Bell, G. Meredith Jan 2025

Heat Stress Induced By Irrigation Over The Us Great Plains And Related Uncertainties, L. Chen, I. C. Achugbu, Rezaul Mamood, K. Kintziger, J. Bell, G. Meredith

School of Natural Resources: Faculty Publications

No abstract provided.


Proximal Remote Sensing: An Essential Tool For Bridging The Gap Between High Resolution Ecosystem Monitoring And Global Ecology, Z. Pierrat, T. Magney, W. Richardson, B. Runkle, J. Diehl, X. Yang, J Gamon Et Al. Jan 2025

Proximal Remote Sensing: An Essential Tool For Bridging The Gap Between High Resolution Ecosystem Monitoring And Global Ecology, Z. Pierrat, T. Magney, W. Richardson, B. Runkle, J. Diehl, X. Yang, J Gamon Et Al.

School of Natural Resources: Faculty Publications

No abstract provided.


Analysis And Authentication Of An Optical Method For Early Detection Of Harmful Algal Blooms, Cody Schumacher Jan 2025

Analysis And Authentication Of An Optical Method For Early Detection Of Harmful Algal Blooms, Cody Schumacher

Theses, Dissertations and Capstones

The proliferation and frequency of harmful algal blooms (HABs) attributed to eutrophication, storm events and a changing climate have been an increasing concern in both lotic and lentic freshwater ecosystems. Methods of detecting HABs have been explored through fluorescent measurement and sample analysis, but are often expensive and time-consuming. A novel smart device application is in development to detect HABs based on images captured and analyzed by machine learning algorithms trained to distinguish potential cyanobacterial blooms. The HABs App model accurately detected cyanobacteria in strong relationship with biovolume concentrations (R2 = 0.996) within the Greenup Pool of the Ohio …


The Effect Of Two Common Herbicides On The Growth And Development Of Two Anuran Species (Boreorana Sylvatica And Dryophytes Chrysoscelis), Jerica Eaton Jan 2025

The Effect Of Two Common Herbicides On The Growth And Development Of Two Anuran Species (Boreorana Sylvatica And Dryophytes Chrysoscelis), Jerica Eaton

Masters Theses & Specialist Projects

Amphibian populations have been declining globally since the 1950s. Many species that have experienced declines are viewed as 'environmental indicators' that reveal habitat degradation. Declines can be attributed to several factors, including chemicals used in agriculture, such as Roundup and Atrazine. Agrochemicals contaminate water bodies through runoff or leaching and cause alterations to aquatic ecosystems. This study evaluated the effects of herbicide usage on two wild anuran populations using wood frogs (Boreorana sylvatica) and Cope’s gray tree frogs (Dryophytes chrysoscelis) as a model. We determined the effect of the herbicides at two concentrations, a high concentration …


Annual Variation In Attribute Importance To Upland Game Hunter Satisfaction In Nebraska, M. P. Gruntarod, J. J. Lusk, C. J. Chizinski Jan 2025

Annual Variation In Attribute Importance To Upland Game Hunter Satisfaction In Nebraska, M. P. Gruntarod, J. J. Lusk, C. J. Chizinski

School of Natural Resources: Faculty Publications

No abstract provided.


Carbon Capture Deployment In U.S. Upstream Oil Fields: Engineering Feasibility And National Impact, Rebecca Gaisie Jan 2025

Carbon Capture Deployment In U.S. Upstream Oil Fields: Engineering Feasibility And National Impact, Rebecca Gaisie

Student Research Submissions

The upstream oil and gas sector is a major contributor to greenhouse gas emissions in the United States, particularly from extraction and initial processing activities. As the country accelerates its climate action under the Inflation Reduction Act and Net-Zero 2050 targets, carbon capture and storage (CCS) is increasingly viewed as a critical pathway for emissions mitigation in fossil fuel operations. This study investigates the technical and economic feasibility of deploying CCS technologies in U.S. upstream oil fields, using case studies from ExxonMobil-operated sites in Wyoming and Texas. A techno-economic analysis is conducted to evaluate carbon capture potential, energy requirements, infrastructure …


Devising Optimized Maize Nitrogen Stress Indices In Complex Field Conditions From Uav Hyperspectral Imagery, Jiating Li, Yufeng Ge, Laila A. Puntel, Derek M. Heeren, Geng Bai, Guillermo R. Balboa, John A. Gamon, Timothy J. Arkebauer, Yeyin Shi Jan 2025

Devising Optimized Maize Nitrogen Stress Indices In Complex Field Conditions From Uav Hyperspectral Imagery, Jiating Li, Yufeng Ge, Laila A. Puntel, Derek M. Heeren, Geng Bai, Guillermo R. Balboa, John A. Gamon, Timothy J. Arkebauer, Yeyin Shi

School of Natural Resources: Faculty Publications

Nitrogen Sufficiency Index (NSI) is an important nitrogen (N) stress indicator for precision N management. It is usually calculated using variables such as leaf chlorophyll meter readings (SPAD) and vegetation indices (VIs). However, no consensus has been reached on the most preferred variable. Additionally, conventional NSI (NSIuni) calculation assumes N being the sole yield-limiting factor, neglecting other factors such as soil water variability. To tackle these issues, this study compared various variables for NSI calculation and evaluated two new N stress indicators in minimizing the impact of confounding water treatment. The following ground- and aerial-derived variables were compared …


2024 San Diego Regional Climate Collaborative Annual Report, San Diego Regional Climate Collaborative Jan 2025

2024 San Diego Regional Climate Collaborative Annual Report, San Diego Regional Climate Collaborative

San Diego Regional Climate Collaborative

The San Diego Regional Climate Collaborative is a network for public agencies that serves the San Diego region to share expertise, leverage resources and advance comprehensive solutions to facilitate climate change planning. By partnering with academia, nonprofits, and businesses, the SDRCC also works to leverage the profile of regional leadership. This is the 2024 San Diego Regional Climate Collaborative Annual Report.


Influence Of Biochar On Rooting And Establishment Of Chamaecyparis And Thuga Species, Megan Mudd Jan 2025

Influence Of Biochar On Rooting And Establishment Of Chamaecyparis And Thuga Species, Megan Mudd

Masters Theses & Specialist Projects

This study investigated the effects of biochar amendment on the rooting and establishment of evergreen propagules, thus addressing the critical need for improved nutrient use efficiency and water retention in containerized substrates within the horticulture and floriculture industry. Biochar, a product of biomass pyrolysis, offers promising potential due to its high porosity and surface area, which contribute to enhanced soil fertility and water retention. Two experiments were conducted, one in a greenhouse and the other in a cold frame, using cuttings from Chamaecyparis obtusa, Chamaecyparis pisifera ‘Vintage Gold’, and Thuja occidentalis ‘Emerald Green’. Treatments included varying percentages of biochar …


Delineating Ecologically Distinct Groups For Annual Cycle Management Of A Declining Shorebird, E. C. Knight, J. Carlisle, A. J. Boyce, D. Bradley, P. Cimprich, S. Coates, L. A. Powell Et Al. Jan 2025

Delineating Ecologically Distinct Groups For Annual Cycle Management Of A Declining Shorebird, E. C. Knight, J. Carlisle, A. J. Boyce, D. Bradley, P. Cimprich, S. Coates, L. A. Powell Et Al.

School of Natural Resources: Faculty Publications

No abstract provided.


Caves, Calculus, And Climate Change: Measuring And Modeling The Discharge Of Biz Falls In Mammoth Cave National Park, Ava Lich Jan 2025

Caves, Calculus, And Climate Change: Measuring And Modeling The Discharge Of Biz Falls In Mammoth Cave National Park, Ava Lich

Mahurin Honors College Capstone Experience/Thesis Projects

Climate change poses a significant global challenge, with increasing levels of atmospheric carbon dioxide as a primary driver of rising temperatures and environmental disruptions. Karst systems, such as those in South-Central Kentucky, play a role in sequestering atmospheric CO₂ through the dissolution of limestone, a process that forms unique landscapes while mitigating climate impacts. This study investigates the discharge dynamics of Cascade River in Great Onyx Cave to enhance understanding of the relationship between hydrology and carbon sequestration in karst environments. A barrel weir equipped with pressure transducers was employed to collect and measure water flow, and Torricelli’s law was …


Population Increases Of The Threatened American Burying Beetle (Nicrophorus Americanus) Linked To Large-Scale Collaborations In A Working Lands Ecoregion, C. P. Roberts, A. K. Ludwig, D. T. Fogarty, E. F. Stuber, Daniel R. Uden, T. L. Walker Jr., D. Twidwell Jan 2025

Population Increases Of The Threatened American Burying Beetle (Nicrophorus Americanus) Linked To Large-Scale Collaborations In A Working Lands Ecoregion, C. P. Roberts, A. K. Ludwig, D. T. Fogarty, E. F. Stuber, Daniel R. Uden, T. L. Walker Jr., D. Twidwell

School of Natural Resources: Faculty Publications

No abstract provided.


Projecting The Loss Of Shark Tooth Island From Sea Level Rise And Land Subsidence, Katherine L. Stoneman, Holly Anthony Jan 2025

Projecting The Loss Of Shark Tooth Island From Sea Level Rise And Land Subsidence, Katherine L. Stoneman, Holly Anthony

Research and Creativity Symposium

Shark Tooth Island, a popular recreational location on the Virginia side of the lower Potomac River, is disappearing. The causes include sea level rise, groundwater withdrawal, and isostatic adjustment. Given the island’s popularity, this presents a unique opportunity to educate the public about real impacts of climate change in a region with climate change denialism.


Devising Optimized Maize Nitrogen Stress Indices In Complex Field Conditions From Uav Hyperspectral Imagery, J. Li, Y. Ge, J. Gamon, L. A. Puntel Et Al. Jan 2025

Devising Optimized Maize Nitrogen Stress Indices In Complex Field Conditions From Uav Hyperspectral Imagery, J. Li, Y. Ge, J. Gamon, L. A. Puntel Et Al.

School of Natural Resources: Faculty Publications

No abstract provided.


A Metadata Analysis Of Unionid Mussels Of The Greenup Pool Of The Ohio River Using Occupancy Modeling And Species Area Curves, Tyler Mitchell Annarino Jan 2025

A Metadata Analysis Of Unionid Mussels Of The Greenup Pool Of The Ohio River Using Occupancy Modeling And Species Area Curves, Tyler Mitchell Annarino

Theses, Dissertations and Capstones

Although North America contains the largest diversity of freshwater mussels in the world, only ~24% of species in the United States and Canada have stable populations. This group provides unique hurdles for surveying, and current unionid survey protocols include neither longitudinal studies nor randomization of sites. This project conducts a metadata analysis of freshwater mussels in the Greenup Pool of the Ohio River (GPOR) to answer three questions: 1. Does a combination of longitudinal scope, randomization of sites, and historic methodology of surveying result in useful occupancy/detection models (ODMs) of unionids in large streams at the family level? 2. Does …


Human Recreation Influences Activity Of A Large Carnivore In An Urban Landscape, E. C. Bolas, J. F. Benson, R. V. Blakey Jan 2025

Human Recreation Influences Activity Of A Large Carnivore In An Urban Landscape, E. C. Bolas, J. F. Benson, R. V. Blakey

School of Natural Resources: Faculty Publications

No abstract provided.


Northern Bobwhite Habitat Selection During The Nonbreeding Season In A Riparian Corridor In Colorado, J. M. Wolske, A. C. Behney, L. A. Powell Jan 2025

Northern Bobwhite Habitat Selection During The Nonbreeding Season In A Riparian Corridor In Colorado, J. M. Wolske, A. C. Behney, L. A. Powell

School of Natural Resources: Faculty Publications

No abstract provided.