Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- University of Nebraska - Lincoln (2955)
- Utah State University (819)
- Montana Tech Library (782)
- Department of Primary Industries and Regional Development, Western Australia (483)
- University of Nevada, Las Vegas (366)
-
- Portland State University (350)
- University of Kentucky (309)
- University of Colorado Law School (280)
- City University of New York (CUNY) (270)
- University of Arkansas, Fayetteville (270)
- Old Dominion University (210)
- Louisiana State University (191)
- University of South Florida (189)
- China Coal Technology and Engineering Group (CCTEG) (185)
- South Dakota State University (164)
- University of Texas Rio Grande Valley (155)
- Chapman University (153)
- University of Texas at El Paso (152)
- Clemson University (133)
- Montclair State University (133)
- SIT Graduate Institute/SIT Study Abroad (131)
- Edith Cowan University (126)
- World Maritime University (112)
- Wright State University (103)
- Walden University (98)
- New Jersey Institute of Technology (93)
- Western Kentucky University (87)
- Central Mining Institute (82)
- University of Rhode Island (79)
- California Polytechnic State University, San Luis Obispo (77)
- Keyword
-
- Western Australia (282)
- Climate change (245)
- Sustainability (216)
- Water quality (201)
- Priority Soils (189)
-
- Remote sensing (187)
- Groundwater (152)
- United States (146)
- Conservation (137)
- 2014 International Conference on Hydroinformatics HIC (126)
- Metals Abatement (101)
- Environment (100)
- California (91)
- Management (90)
- GIS (86)
- Quality Assurance (84)
- Agriculture (80)
- Environmental (80)
- Department of Earth and Environmental Sciences (76)
- Hydrology (76)
- Ecology (73)
- Invasive species (72)
- Drought (70)
- Water (69)
- Evapotranspiration (67)
- Nebraska (67)
- Climate (63)
- Natural resources (63)
- Soil (63)
- Machine learning (62)
- Publication Year
- Publication
-
- Silver Bow Creek/Butte Area Superfund Site (776)
- School of Natural Resources: Faculty Publications (658)
- United States Department of Agriculture Wildlife Services: Staff Publications (376)
- Reports (284)
- Electronic Theses and Dissertations (244)
-
- United States Geological Survey: Staff Publications (236)
- Theses and Dissertations (195)
- United States Department of Commerce: Staff Publications (186)
- Coal Geology & Exploration (185)
- UNLV Theses, Dissertations, Professional Papers, and Capstones (161)
- Open Access Theses & Dissertations (152)
- Theses (132)
- LSU Master's Theses (128)
- International Conference on Hydroinformatics (126)
- Independent Study Project (ISP) Collection (124)
- School of Natural Resources: Dissertations, Theses, and Student Research (113)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (111)
- USF Tampa Graduate Theses and Dissertations (105)
- Arkansas Water Resources Center Technical Reports (103)
- Fisheries Research Reports (103)
- Dissertations and Theses (102)
- Walden Dissertations and Doctoral Studies (98)
- The Probe: Newsletter of the National Animal Damage Control Association (96)
- Browse all Theses and Dissertations (95)
- School of Earth, Environmental, & Marine Sciences Faculty Publications (92)
- All U.S. Government Documents (Utah Regional Depository) (85)
- Graduate Theses and Dissertations (83)
- Publications and Research (83)
- Journal of Sustainable Mining (82)
- Environmental Science and Management Faculty Publications and Presentations (78)
- Publication Type
- File Type
Articles 751 - 780 of 12744
Full-Text Articles in Entire DC Network
Inferences Of Source Lithologies For Chicxulub Microtektites Using A Bayesian Approach, Jack Carter, Paolo Sanchez, Anthony J. Fuentes, Paul R. Renne, Dale H. Burns, Hermann D. Bermúdez
Inferences Of Source Lithologies For Chicxulub Microtektites Using A Bayesian Approach, Jack Carter, Paolo Sanchez, Anthony J. Fuentes, Paul R. Renne, Dale H. Burns, Hermann D. Bermúdez
Department of Earth and Environmental Studies Faculty Scholarship and Creative Works
The Chicxulub impact on the Yucatán Peninsula at the Cretaceous-Paleogene boundary (KPB) was a likely contributor to the end-Cretaceous mass extinction. Glassy objects produced by quenched melt from the impact were distributed over a large region centered on the Caribbean basin and have long been known to preserve compositional information that could allow for more robust constraints on the pre-impact target lithologies. The Chicxulub-derived glasses are generally altered in most localities, but a recently discovered deposit at Gorgonilla Island, Colombia, yields a large percentage of unaltered glassy microtektites up to ∼2 mm (There is inconsistent usage of these terms in …
Table Of Contents, The Editors
A Method For Time Difference Correction For Real-Time Seismic-While-Mining Data, Jin Dan
A Method For Time Difference Correction For Real-Time Seismic-While-Mining Data, Jin Dan
Coal Geology & Exploration
Objective Seismic-while-mining (SWM) data are usually acquired using multiple stations, each of which is equipped with multiple data acquisition traces. However, the SWM data received by these stations exhibit time differences due to the lack of GPS signals underground and the fact that current network synchronization technologies are confined by network delays underground. Given that the time synchronization accuracy directly affects the quality of data processing and imaging, the time difference correction of real-time SWM data is essential for accurate SWM detection. Methods Since current high-precision timing systems on the surface suffer from signal loss underground, this study proposed an …
2024 Rmap Non-Residential Parcels Data Summary Report Silver Bow Creek/Butte Area Npl Site Bpsou, Environmental Standards, Inc., Pioneer Technical Services, Inc.
2024 Rmap Non-Residential Parcels Data Summary Report Silver Bow Creek/Butte Area Npl Site Bpsou, Environmental Standards, Inc., Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Predicting Precipitation And Ndvi Utilization Of The Multi-Level Linear Mixed-Effects Model And The Ca-Markov Simulation Model, Fatima Belhaj, Hlila Rachid, Ouallali Abdessalam, Aqil Tariq, Belkendil Abdeldjalil, Beroho Mohamed, Hassan Alzahrani, Hajra Mustafa, Hesham El-Askary
Predicting Precipitation And Ndvi Utilization Of The Multi-Level Linear Mixed-Effects Model And The Ca-Markov Simulation Model, Fatima Belhaj, Hlila Rachid, Ouallali Abdessalam, Aqil Tariq, Belkendil Abdeldjalil, Beroho Mohamed, Hassan Alzahrani, Hajra Mustafa, Hesham El-Askary
Mathematics, Physics, and Computer Science Faculty Articles and Research
The current work intends to reconstruct the spatiotemporal evolution of precipitation and the Normalized Differentiate Vegetation Index (NDVI) in the Loukkos watershed and provide scenarios for their recent and future evolution, therefore determining the degree of association. We conducted a study on the time series data of precipitation and NDVI from 1999 to 2019. The NDVI prediction is conducted using the CA-Markov model and the linear mixed-effects multi-level model (LME) with precipitation data from 2019 to 2040. The CA-Markov model was employed to predict the vegetation indices for 2029 and 2040 using 1999, 2009, and 2019 data. The model simulates …
Leveraging High-Frequency Sensor Data And U.S. National Water Model Output To Forecast Turbidity In A Drinking Water Supply Basin, John T. Kemper, Kristen L. Underwood, Scott D. Hamshaw, Dany Davis, Jason Siemion, James B. Shanley, Andrew W. Schroth
Leveraging High-Frequency Sensor Data And U.S. National Water Model Output To Forecast Turbidity In A Drinking Water Supply Basin, John T. Kemper, Kristen L. Underwood, Scott D. Hamshaw, Dany Davis, Jason Siemion, James B. Shanley, Andrew W. Schroth
Watershed Sciences Faculty Publications
As high-frequency sensor networks increasingly enhance data-driven models of water quality, process-based models like the U.S. National Water Model (NWM) are generating accessible forecasts of streamflow at increasingly dense scales. There is now an opportunity to combine these products to construct actionable water quality forecasts. To that end, we couple streamflow forecasts from the NWM to a gradient-boosted decision tree algorithm (LightGBM) trained on 5+ years of high-frequency monitoring data to forecast in-stream turbidity levels in the Catskill Mountains, NY, USA. Results indicate LightGBM models are capable of relatively skillful predictions, which enable robust forecasts for 1–3 days lead times. …
Prediction Of Unit Haulage Cost In An Underground Mine Using Machine Learning Techniques, Marco Cotrina, Jairo Marquina, Junior Polo
Prediction Of Unit Haulage Cost In An Underground Mine Using Machine Learning Techniques, Marco Cotrina, Jairo Marquina, Junior Polo
Journal of Sustainable Mining
The primary objective of the research was to apply machine learning techniques to forecast the unit costs of ore hauling in an underground mine. The methodology employed was quantitative, with a non-experimental and descriptive design. Haulage data were collected over a 12-month period. Furthermore, an exploratory data analysis (EDA) was conducted using various models, including ANN-MLP (Artificial Neural Network – Multilayer Perceptron), Random Forests, Extreme Gradient Boosting, Support Vector Regression, Decision Tree, KNN, and Bayesian Regression, to handle the data’s complexity. The data were split into 80% for training, 10% for testing, and 10% for validation. The results indicated that …
Draft Final Butte Priority Soils Operable Unit (Bpsou) Unreclaimed (Ur) Sites New And Mahoney (Ur-23) Construction Completion Report (Ccr), Pioneer Technical Services, Inc.
Draft Final Butte Priority Soils Operable Unit (Bpsou) Unreclaimed (Ur) Sites New And Mahoney (Ur-23) Construction Completion Report (Ccr), Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Draft Final Quarterly Operations And Maintenance Report Butte Treatment Lagoon System – Fourth Quarter 2024, Pioneer Technical Services, Inc.
Draft Final Quarterly Operations And Maintenance Report Butte Treatment Lagoon System – Fourth Quarter 2024, Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Assessing The Feasibility Of Managed Aquifer Recharge For The United States Air Force, Daniel Hendrix
Assessing The Feasibility Of Managed Aquifer Recharge For The United States Air Force, Daniel Hendrix
Theses and Dissertations
Water stress is becoming an increasing global issue, with 4 billion people (50% of the world’s population) experiencing water stress at least one month per year. By 2050, 60% of the world’s population and $70 trillion USD in global gross domestic product will be affected. This research analyzes 78 CONUS USAF installations to determine location-specific water stress and feasible Managed Aquifer Recharge (MAR) solutions. Although thousands of MAR projects have been implemented globally, active-duty USAF installations have yet to contribute to solving this growing issue. Important factors such as required subsurface conditions, physical limitations, design, cost, and regulatory constraints are …
Short-Run Subsidies And Long-Run Willingness To Pay: Learning And Anchoring In An Agricultural Experiment In Ethiopia, Solomon Balew, Erwin Bulte, Menale Kassie
Short-Run Subsidies And Long-Run Willingness To Pay: Learning And Anchoring In An Agricultural Experiment In Ethiopia, Solomon Balew, Erwin Bulte, Menale Kassie
All Peer-Reviewed Publications
We study how temporary provision of an agricultural innovation at zero cost affects long-run demand for that innovation. Our experimental design enables us to distinguish between an “anchoring effect” of subsidies and a “learning effect.” We document large and persistent anchoring and learning effects. For the innovation that we consider, an integrated pest management (IPM) package for Ethiopian smallholder farmers, the learning effect dominates the anchoring effect, so temporary subsidized provision promotes long-run technology diffusion.
Biophysical Response Of A Coastal Woodland To Extreme Water Deficit During A Year Of Record-Breaking Heat, Caitlin E. Moore, Sally E. Thompson, Jason Beringer, Wesley Cooper, Simone Gelsinari, Hoang Long Nguyen, Huanhuan Wang, Qiaoyun Xie, Richard P. Silberstein
Biophysical Response Of A Coastal Woodland To Extreme Water Deficit During A Year Of Record-Breaking Heat, Caitlin E. Moore, Sally E. Thompson, Jason Beringer, Wesley Cooper, Simone Gelsinari, Hoang Long Nguyen, Huanhuan Wang, Qiaoyun Xie, Richard P. Silberstein
Research outputs 2022 to 2026
Global terrestrial and ocean surface temperatures continue to reach record levels, resulting in heat waves, drought, and prolonged heat stress experienced by vegetation in many regions. In 2023-2024, coastal terrestrial ecosystems in Western Australia were particularly affected, experiencing their driest and hottest summer since observations began in the early 1900s. Banksia woodlands are a threatened ecological community in this region that are endangered by the cumulative impacts of climate change, clearing and changing groundwater regimes, the last of which is strongly influenced by the dual use of groundwater resources by the ecosystem and by the ∼2 million people in the …
Revised Final Multi-Pathway Residential Metals Abatement Program Plan, Atlantic Richfield Company, Butte Silver Bow
Revised Final Multi-Pathway Residential Metals Abatement Program Plan, Atlantic Richfield Company, Butte Silver Bow
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Revised Final - Multi-Pathway Residential Metals Abatement Program Plan, Butte-Silver Bow Department Of Reclamation And Environmental Services, Atlantic Richfield Company
Revised Final - Multi-Pathway Residential Metals Abatement Program Plan, Butte-Silver Bow Department Of Reclamation And Environmental Services, Atlantic Richfield Company
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Atmospheric Water Generation: Experimental Observations And Assembly Of An Artificial Neural Network, Houston Hoss Anderson
Atmospheric Water Generation: Experimental Observations And Assembly Of An Artificial Neural Network, Houston Hoss Anderson
Theses and Dissertations
This research investigated the performance of a Tsunami T50 Vapor Compression Cycle styled Atmospheric Water Generation (AWG) machine operated under ambient conditions in Dayton, Ohio. Water yield from the device was measured volumetrically and these values are paired with respective weather data, collected from a local monitoring station, to build an Artificial Neural Network in MATLAB and JMP software. Water yield varied over the course of this study but averaged 1.2L and maxed at 5L for 4-hour operating periods. This work is part of a 3-year project; future data is needed to enhance both training and validation of the model …
Atmospheric Water Generation: Bacterial And Inorganic Chemical Quality, Garrett E. Stanley
Atmospheric Water Generation: Bacterial And Inorganic Chemical Quality, Garrett E. Stanley
Theses and Dissertations
This study investigated the quality of untreated water collected from a vapor compression-based atmospheric water generator (AWG) operated outdoors in Dayton, Ohio. The concentrations of bacterial and chemical constituents were determined. The concentration of culturable bacteria was between 200 and 2300 CFU/mL, significantly higher than the reference levels described in recreational and drinking water quality guidance. Three discrete bacteria phenotypes were visually identified; two were yellow in color, rod-shaped and gram-negative while the third was milky white, circular, and gram-positive. Chemical analysis on 15 randomly selected samples revealed the presence of Barium (average = 0.16 mg/L), Magnesium (0.08 = mg/L), …
Re: Comment Letter For The Butte Priority Soils Operable Unit (Bpsou) Butte Treatment Lagoons (Btl) Groundwater Treatment System Routine Operations, Maintenance, And Monitoring (Om&M) Plan (Dated December 10, 2024), Emma Rott
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
2025 Final Butte Reduction Works (Brw) Smelter Area Mine Waste Remediation And Contaminated Groundwater Hydraulic Control Site Phase Iii Quality Assurance Project Plan (Qapp), Pioneer Technical Services, Inc.
2025 Final Butte Reduction Works (Brw) Smelter Area Mine Waste Remediation And Contaminated Groundwater Hydraulic Control Site Phase Iii Quality Assurance Project Plan (Qapp), Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
2025 Final Butte Reduction Works (Brw) Smelter Area Mine Waste Remediation And Contaminated Groundwater Hydraulic Control Site Phase Iii Quality Assurance Project Plan (Qapp), Pioneer Technical Services, Inc.
2025 Final Butte Reduction Works (Brw) Smelter Area Mine Waste Remediation And Contaminated Groundwater Hydraulic Control Site Phase Iii Quality Assurance Project Plan (Qapp), Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
2025 Final Butte Reduction Works (Brw) Smelter Area Mine Waste Remediation And Contaminated Groundwater Hydraulic Control Site Quality Assurance Project Plan (Qapp) For Microbial Analysis And Biotreatability Study, Pioneer Technical Services, Inc.
2025 Final Butte Reduction Works (Brw) Smelter Area Mine Waste Remediation And Contaminated Groundwater Hydraulic Control Site Quality Assurance Project Plan (Qapp) For Microbial Analysis And Biotreatability Study, Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
2025 Final Butte Reduction Works (Brw) Smelter Area Mine Waste Remediation And Contaminated Groundwater Hydraulic Control Site Quality Assurance Project Plan (Qapp) For Microbial Analysis And Biotreatability Study, Pioneer Technical Services, Inc.
2025 Final Butte Reduction Works (Brw) Smelter Area Mine Waste Remediation And Contaminated Groundwater Hydraulic Control Site Quality Assurance Project Plan (Qapp) For Microbial Analysis And Biotreatability Study, Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
China’S Readiness For Transitioning To A Low-Carbon Economy: Mitigant And Catalyst Factors For A Geopolitical Conflict, Yan Chen, Jiayi Lyu, Jaime Ortiz, Wenbin Song
China’S Readiness For Transitioning To A Low-Carbon Economy: Mitigant And Catalyst Factors For A Geopolitical Conflict, Yan Chen, Jiayi Lyu, Jaime Ortiz, Wenbin Song
International Business and Entrepreneurship Faculty Publications
The transition from a carbon-intensive economy to a carbon-neutral one has become a critical global objective to address climate change. This study examines the relationship between Low-Carbon Economic Development (LCED) and Geopolitical Risk (GPR) in China by focusing on the challenges and opportunities they present. We use a qualitative analysis to identify that rising GPR, exacerbated by market instability, resource allocation conflicts, and trade disputes, significantly hinders LCED progress. However, these geopolitical tensions also act as a catalyst for accelerating the development of renewable energy, reducing reliance on traditional energy sources, and fostering low-carbon technologies. Furthermore, LCED can ameliorate GPR …
Investigation Of Methane Content And Sorption Properties Of Lignite Deposits, Marcin Karbownik
Investigation Of Methane Content And Sorption Properties Of Lignite Deposits, Marcin Karbownik
Journal of Sustainable Mining
Methane is one of the main greenhouse gases (GHG) affecting climate change, and proper quantification of the amount of its emissions to the atmosphere is crucial. The basic parameter for determining the potential amounts of naturally occurring methane in coal for both hard coal and lignite is the methane content. Determination of the methane content of lignite for open-pit mines is not commonly used and required as there is no possibility of its accumulation in the mine workings, as is the case for underground hard coal mines. In this article, two research areas for open-pit lignite mines were analyzed in …
Draft Final 2025 Residential Metals Abatement Program (Rmap) Quality Assurance Project Plan (Qapp) Annual Update (Residential Parcels), Pioneer Technical Services, Inc.
Draft Final 2025 Residential Metals Abatement Program (Rmap) Quality Assurance Project Plan (Qapp) Annual Update (Residential Parcels), Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Draft Final 2025 Residential Metals Abatement Program (Rmap) Quality Assurance Project Plan (Qapp) Annual Update (Non-Residential Parcels And Residential Daycares), Pioneer Technical Services, Inc.
Draft Final 2025 Residential Metals Abatement Program (Rmap) Quality Assurance Project Plan (Qapp) Annual Update (Non-Residential Parcels And Residential Daycares), Pioneer Technical Services, Inc.
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
A Model Predictive Control Method For Directional Borehole Trajectories In Underground Coal Mines, Li Hao, Yao Ningping, Lu Chengda, Zhang Jinbao, Wei Hongchao, Wu Jiajun, Li Jinyu
A Model Predictive Control Method For Directional Borehole Trajectories In Underground Coal Mines, Li Hao, Yao Ningping, Lu Chengda, Zhang Jinbao, Wei Hongchao, Wu Jiajun, Li Jinyu
Coal Geology & Exploration
Objective It is challenging to control the borehole trajectories during directional drilling in complex strata in underground coal mines, resulting in significant deviations from the designed trajectories. Given this, this study proposed a method for tracking and controlling directional borehole trajectories based on model predictive control (MPC). Methods Focusing on the directional drilling process conducted using a screw drill, this study investigated the movement patterns of the directional screw drill by analyzing the characteristics of directional drilling in complex strata in underground coal mines. Based on the kinematic theory, this study developed a borehole trajectory extension model for sliding directional …
Geological Condition Assessment And Selection Of Optimal Favorable Areas For Deep Underground Coal Gasification In The Yanchuannan Block, Li Xin, Chen Zhenlong, Guo Tao, Gao Xiaokang, Xiao Cui, Jin Xiaobo, Wu Caifang, Wang Fangfang
Geological Condition Assessment And Selection Of Optimal Favorable Areas For Deep Underground Coal Gasification In The Yanchuannan Block, Li Xin, Chen Zhenlong, Guo Tao, Gao Xiaokang, Xiao Cui, Jin Xiaobo, Wu Caifang, Wang Fangfang
Coal Geology & Exploration
Objective and Methods Geological condition assessment for underground coal gasification (UCG) allows for considerably reducing the risk of UCG projects, while scientific siting serves as a prerequisite for the success of UCG projects. To achieve the geological condition assessment for deep UCG and the selection of optimal favorable areas in the Yanchuannan block, this study quantified the indices of coal quality, coal seam occurrence, surrounding rocks, hydrogeology, and structures in the No.2 coal seam in the study area. Employing the technique for order preference by similarity to an ideal solution (TOPSIS) method, this study performed mathematical assessments and grading of …
Response Characteristics Of The Orthogonal Antennas Of Electromagnetic Azimuthal Resistivity Measurement While Drilling (Mwd) Tool For Coal Mining, Chen Gang
Coal Geology & Exploration
Objective and Methods This study aims to determine the factors influencing the detection performance of the electromagnetic azimuthal resistivity measurement while drilling (MWD) tool for coal mining in horizontal wells. Through finite element numerical simulations, this study conducted boundary detection using orthogonal coupling coils with multiple frequencies and coil pitches. This allowed for determining the optimal asymmetric arrangement of coils, as well as the optimal working parameters of frequency, source-detector separation distance, and coil pitch suitable for high-resistivity coal seams. Results and Conclusions The comparative study of orthogonal and inclined coils reveals that in the case of directional signals of …
Frequency-Domain Induced Polarization Responses Of Water-Bearing Anomalous Bodies In The Roadway Tunneling Direction In Coal Mines, Hu Xiongwu, Hu Yuanrong, Wu Rongxin, Yu Hao
Frequency-Domain Induced Polarization Responses Of Water-Bearing Anomalous Bodies In The Roadway Tunneling Direction In Coal Mines, Hu Xiongwu, Hu Yuanrong, Wu Rongxin, Yu Hao
Coal Geology & Exploration
Objective A frequency-domain induced polarization (FDIP) method enables the observation of critical electrical parameters such as frequency dispersivity and complex resistivity of geological bodies, mitigating the multiplicity of solutions in the interpretations of electrical anomalies. This method has emerged as a primary technique for electric method-based advance water detection during roadway tunneling in coal mines. However, the FDIP method primarily focuses on data observation in the direction opposite to roadway tunneling, exhibiting a limited capacity to capture geoelectric information in the roadway tunneling direction. This leads to practical challenges such as unclear orientations of water-bearing anomalous bodies. Therefore, exploring the …
Re: Comment Letter For Bpsou Draft Final Phase I Design Investigation Evaluation Report And Response To Comments, Blacktail Creek Riparian Actions (Dated January 24, 2025), Emma Rott
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.