Moe Momayez

Interests

Teaching

Geopositioning, Mine Ventilation, Rock Excavation, Rock Mechanics, Geosensing, Time Series Analysis, Machine Learning, Image Processing, Computer Programming, Instrumentation, Renewable Energy

Research

Mine Ventilation, Geomechanics, Rock Physics, Rock Breakage, Geosensing, Rock Slope Stability, Renewable Energy, Instrumentation and Monitoring, Signal and Image Processing, Machine Learning, Nondestructive Evaluation

Courses

Scholarly Contributions

Books

• Sharon, R., & Momayez, M. (2020). Guidelines for Slope Performance Monitoring. CSIRO Publishing.
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  Book chapter: 'Nano-Sensor Platform for Mine Environment Monitoring’

Journals/Publications

• Momayez, M., & Lama, B. (2023). Review of Non-Destructive Methods for Rock Bolts Condition Evaluation. Mining, 3(1), 106-120. doi:10.3390/mining3010007
• Lazaro, P., & Momayez, M. (2020). Development of a modified predicted heat strain model for hot work environments. International Journal of Mining Science and Technology, 30(4), 447-481. doi:https://doi.org/10.1016/j.ijmst.2020.05.009
• Lazaro, P., & Momayez, M. (2020). Heat Stress in Hot Underground Mines: a Brief Literature Review. Mining, Metallurgy & Exploration Journal, 38(4), 497–508. doi:https://doi.org/10.1007/s42461-020-00324-4
• Momayez, M., Song, X., Wang, X., Chen, T., & Dang, F. (2020). Research on cross‐well pseudorandom electromagnetic detection method and extraction of response characteristics. Energy Science & Engineering, 8(10), 3602-3626. doi:10.1002/ese3.767
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  A method is proposed that uses the metal casing of an oil and gas production well to construct a long dipole emission line source and applies pseudorandom multifrequency excitation signals to it to identify reservoir characteristics of interwell reservoirs. This method can significantly improve the work efficiency and precision of electrical prospecting. The cross-well pseudorandom response signal contains multiple main frequency components, as well as various measuring frequency points. Targeting the frequency components with different amplitudes and initial phases in the pseudorandom signal, the digital coherent detection method and its noise resistance are studied. Using this method can effectively extract the amplitude and phase information of each frequency component in different noise environments and has a strong ability to suppress signals of other frequencies. In the heterogeneous interwell reservoir detection model, the amplitude characteristics of each frequency component of the pseudorandom electromagnetic response at the measuring line with different well spacings are extracted. Numerical results show that the curve of equal-frequency measurement appears downwardly "concave" at the interface of the low-resistivity interlayer, and upwardly "convex" at the interface of the high-resistivity interlayer. With the increase in the resistivity of the low-resistivity interlayer, the dynamic range of the extraction component of the same frequency decreases gradually, and the family of equal-frequency response curves overlap with each other. By contrast, for the high-resistivity interlayer, as its resistivity gradually increases, the dynamic range of the extraction component of same frequency also increases gradually. Moreover, as well spacing varies, the response characteristics of the equal-frequency curve family on different measuring lines are also obviously different. The digital coherent detection method significantly simplifies the receiving circuit system. In practical application, response information of different discrete frequency components can be extracted according to requirements. This thus provides a theoretical basis for the extraction of resistivity and characteristic identification of interwell heterogeneous oil and gas reservoirs.
• Rao, P., Momayez, M., Runge, K., & Muralidharan, K. (2020). Recent Developments in Thermally Insulating Materials Based on Geopolymers. Journal of Mining, Metallurgy & Exploration, 37, 995-1014. doi:https://doi.org/10.1007/s42461-020-00201-0
• Rao, P., Muralidharan, K., Momayez, M., Runge, K., & Loy, D. A. (2020). Direct foaming driven synthesis and thermophysical characterization of silica-alumina foams: Applications for thermal insulation. Journal of Ceramics International, 46(8), 10431-10441. doi:https://doi.org/10.1016/j.ceramint.2020.01.042
• Song, X., Momayez, M., Wang, X., Chen, T., & Dang, F. (2020). Research on cross‐well pseudorandom electromagnetic detection method and extraction of response characteristics. Journal of Energy Science and Engineering, 1-25. doi:https://doi.org/10.1002/ese3.767
• Lazaro, P., & Momayez, M. (2019). Validation of the Predicted Heat Strain Model in Hot Underground Mines. Journal of Mining, Metallurgy & Exploration, 36, 1213-1219. doi:https://doi.org/10.1007/s42461-019-0102-6
• Lazaro, P., & Momayez, M. (2019). Validation of the Predicted Heat Strain Model in Hot Underground Mines. Journal of Mining, Metallurgy & Exploration, 7. doi:https://doi.org/10.1007/s42461-019-0102-6
• Xu, D., Sun, R., Yeh, J., & Momayez, M. (2019). Mapping Soil Layers Using Electrical Resistivity Tomography and Validation: Sandbox Experiments. Journal of Hydrology, 575, 523-536. doi:https://doi.org/10.1016/j.jhydrol.2019.05.036
• Kothari, U., & Momayez, M. (2018). Machine Learning: A Novel Approach to Predicting Slope Instabilities. International Journal of Geophysics, 2018, 9. doi:https://doi.org/10.1155/2018/4861254
• Moe, M., Upasna, C. K., Momayez, M., & Kothari, U. C. (2018). New approaches to monitoring, analyzing and predicting slope instabilities. Journal of Geology and Mining Research, 10(1), 1-14. doi:10.5897/jgmr2017.0272
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  In a mining operation, any noticeable instability can pose a catastrophic threat to the lives of workers. Slope instability can also disrupt the chain of production in a mine, resulting in a loss to the business. Due to the potential threat associated with rock mass movement, it is necessary to be able to predict the time of slope failure. In the past couple of decades, innovations in slope monitoring equipment have made it possible to scan a broad rock face in a short period of time with sub-millimeter accuracy. The data collected from instruments such as Slope Stability Radar (SSR) are commonly used for slope failure predictions, however, it has been challenging to find a method that can provide the time of failure accurately. The aim of this paper is to demonstrate the use of different methods to optimize slope failure predictions. Various methods investigated for research presented in this article include: Minimum Inverse Velocity (MIV), Maximum Velocity (MV), Log Velocity (LV), Log Inverse Velocity (LIV), and Spline regression (SR). Based on the different methods investigated, the Minimum Inverse Velocity method provided the most consistent and accurate results. The use of MIV method resulted in about 75% better predictions than the other methods.   Key words: Monitoring, slope failure, slope instabilities, slope movement, rock failure.
• Momayez, M., & Kothari, U. C. (2018). Machine Learning: A Novel Approach to Predicting Slope Instabilities. International Journal of Geophysics, 2018, 1-9. doi:10.1155/2018/4861254
• Gravley, S., Momayez, M., Tenorio Gutierrez, V. O., & Diaz, N. B. (2017). Diseño de una Estación de Refugio para Equipo Montado en Rieles – Design of a Refuge Chamber for Rail-Mounted Equipment. RUMBO MINERO, 182-185.
• Kothari, U., & Momayez, M. (2017). New Approaches to Monitoring, Analyzing and Predicting Slope Instabilities. Journal of Geology and Mining Research, 10(1), 1-14.
• Su, O., & Momayez, M. (2017). Correlation Between Equotip Hardness Index, Mechanical Properties and Drillability of Rocks. Journal of Science and Engineering, 19(56), 519-531.
• Su, O., & Momayez, M. (2017). Indirect Estimation of Electrical Resistivity by Abrasion and Physico-mechanical Properties of Rocks. Journal of Applied Geophysics, 143, 23-30.
• Ureel, S., & Momayez, M. (2017). Simple Correlations between Rock Abrasion and Other Significant Rock Properties for Rock Mass and Intact Quartzite. Journal of Civil Engineering, 7, 194-207.
• Chandarana, U., Momayez, M., & Taylor, K. (2016). Monitoring and Predicting Slope Stability: A Review of Current Practices from a Mining Perspective. International of Journal of Research in Engineering and Technology, 5(11).
• Leyland, R., Momayez, M., & van Rooy, L. (2016). The Identification and Treatment of Poor Durability Karoo Dolerite Base Coarse Aggregate, Evidence from Case Studies. Journal of The South African Institution of Civil Engineering, 58(1), 26-33.
• Lu, Z., Momayez, M., Yang, C., Qin, D., & Luo, Y. (2016). Estimating ultrasonic time-of-flight through echo signal envelope and modified Gauss Newton method. Measurement, 94, 355-363.
• Ureel, S., & Momayez, M. (2016). Slope Stability Analysis through Integration of Ground Measurements and Remote Sensing Data. Universal Journal of Geoscience, 4(6), 117-121.
• Villiers, E. M., Rooy, J. L., Momayez, M., & Leyland, R. C. (2016). Publishing particulars of the paper under discussion - the identification and treatment of poor durability Karoo dolerite base course aggregate - evidence from case studies : discussion. Journal of The South African Institution of Civil Engineering, 58(3), 45-46. doi:10.17159/2309-8775/2016/v58n3a6
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  Table 1 (referencing COLTO 1998) of the above-mentioned technical paper incorrectly states that the PI shall be < 12 when the PI is determined on the -0.075 mm fraction because -0.425 mm fraction is non-plastic. COLTO requires that the PI of the -0.075 mm fraction shall not exceed 12 without any qualification. If the PI exceeds 12, the material shall be chemically modified. After chemical modification the PI of the -0.075 mm fraction shall not exceed 8. The Technical Committee involved in the COLTO 1998 edition based these criteria.
• Avanesians, P., & Momayez, M. (2015). Wave separation: Application for arrival time detection in ultrasonic signals. Ultrasonics, 55, 15--25.
• Lu, H., Momayez, M., & Luo, Z. (2015). Heat Transfer in Strata with Different Shape of Cross-Section and Dynamic Simulation of Thermal Environment for Deep Subsurface Mine. Journal of Northeastern University (Natural Science), 36(3), 423-427.
• Verryn, S., Momayez, M., & Leyland, R. C. (2015). Smectite clay identification and quantification as an indicator of basic igneous rock durability. Bulletin of Engineering Geology and the Environment, 74(3), 981-989. doi:10.1007/s10064-014-0669-6
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  In terms of aerial extent, basic igneous rocks are one of the most used road building materials in South Africa. This is mainly due to the fact that approximately 57% of the surface lithology in South Africa is of poor road construction quality, rendering the localized Karoo dolerite intrusions the best construction material available for many road construction projects. Historically, examples of such non-durable materials have been reported and investigated by many authors and current South African specifications specifically require consideration of this potential phenomenon. There is, however, still the need for an accurate, reasonably quick and inexpensive method of determining material durability in order to identify variations within any one aggregate source. Smectite clay content has been proposed for this task but quantification of the clay mineral content of typical Karoo basic igneous rock aggregates has been problematic in recent studies. Published works have commonly discussed reasons why quantitative X-ray diffraction analysis of clays and some of the techniques developed to qualify and quantify clays using X-ray diffraction are problematic. Recent attempts to quantify clay mineralogy as an indication of basic igneous rock aggregate durability proved inconclusive and lead to a comparative study on X-ray diffraction results obtained using different techniques and by different laboratories. The findings confirmed what that literature suggested and also revealed that proposed specifications based on smectite content are not feasible due to quantification accuracy exceeding some of the proposed limits.
• Leyland, R., Verryn, S., & Momayez, M. (2014). Smectite clay identification and quantification as an indicator of basic igneous rock durability. Bulletin of Engineering Geology and the Environment, 1--9.
• Lu, H., Luo, Z., & Momayez, M. (2014). CMS-Assisted rock mass stability assessment for underground excavation. International journal of safety and security engineering, 4(3), 261--270.
• Momayez, M., & Ureel, S. (2014). An Investigation of the Present and Future Testing Methods of Rock Abrasion Resistance. International Journal of Mining Engineering and Mineral Processing, 3(1).
• Momayez, M., Leyland, R. C., & Paige-Green, P. (2014). Development of the Road Aggregate Test Specifications for the Modified Ethylene Glycol Durability Index for Basic Crystalline Materials. Journal of Materials in Civil Engineering, 26(7). doi:10.1061/(asce)mt.1943-5533.0000946
• Leyland, R. C., Paige-Green, P., & Momayez, M. (2014). Development of the road aggregate test specifications for the modified ethylene glycol durability index for basic crystalline materials. Journal of Materials in Civil Engineering, 26(7).
• Momayez, M., Boadu, F., Cassidy, N., & Jongmans, D. (2013). Introduction to the JEEG – NSG Geotechnical Assessment and Geo-environmental Engineering Geophysics Special Issue. Journal of Environmental and Engineering Geophysics, 18(4), 201-203. doi:10.2113/jeeg18.4.201
• Momayez, M., Boadu, F., Cassidy, N., & Jongmans, D. (2013). Introduction to the JEEG-NSG Geotechnical Assessment and Geo-environmental Engineering Geophysics Special Issue. Journal of Environmental and Engineering Geophysics, 18(4), 201--203.
• Momayez, M., Jongmans, D., Cassidy, N. J., & Boadu, F. K. (2013). Introduction to the JEEG - NSG geotechnical assessment and geo-environmental engineering geophysics special issue. Near Surface Geophysics, 11(6), 589-590. doi:10.3997/1873-0604.2013049
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  This Special Joint-Issue of the Journal of Environmental and Engineering Geophysics and Near Surface Geophysics entitled “Geotechnical Assessment and Geo-environmental Engineering” is a selection of original contributions organized under two themes. Near Surface Geophysics presents eight articles on the application of the electrical resistivity techniques to determine the geotechnical properties of the ground, and the integration of geophysical and geotechnical data. The Journal of Environmental and Engineering Geophysics contains seven papers that investigate the stability of structures using seismic techniques. The articles presented in this special joint-issue were selected from a pool of over forty manuscript submissions never published before. The papers are peer-reviewed by a panel of experts from around the world and are at the forefront of the current state-ofknowledge. We hope that both researchers and professionals responsible for site and geomaterials characterization will find the information contained in this collection of practical use.
• Ureel, S., Momayez, M., & Oberling, Z. (2013). Rock core orientation for mapping discontinuities and slope stability analysis. International Journal of Research in Engineering and Technology (IJRET), 2(07), 1--8.
• Ureel, S., Oberling, Z. A., & Momayez, M. (2013). ROCK CORE ORIENTATION FOR MAPPING DISCONTINUITIES AND SLOPE STABILITY ANALYSIS. International Journal of Research in Engineering and Technology, 02(07), 1-8. doi:10.15623/ijret.2013.0207001
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  Rock fabric data collected from oriented core provi des supplemental information for slope stability an alyses. Orientation of rock core during drilling programs has become extremely perti nent and important for slope stability and undergro und mining operations. Orientation is needed to provide essential data to describe the structure and properties of discontinu ities encountered during the design process to understand favorable and unfavora ble conditions within a rock slope and underground openings. This paper examines and discusses the limitations and benefits of four methods of obtaining borehole discontinuit y orientations from drilling programs including clay-imprint, ACT I,II,III Refle x, EZY-MARK, and OBI/ABI Televiewer systems. Result s, recommendations and conclusions are provided in this paper.
• Koruyan, K., Deliormanli, A., Karaca, Z., Momayez, M., Lu, H., & Yalçin, E. (2012). Remote sensing in management of mining land and proximate habitat. Journal of the Southern African Institute of Mining and Metallurgy, 112(7), 667-672.
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  Abstract: Although remote sensing technology has been available for many years, it has rarely been used for monitoring mining activity. Recent studies indicate that remote sensing is also a valuable tool for managing and planning certain aspects of the mining operation. In this paper, we examine areal expansion of marble quarries and the affected vegetation over a period of 10 years in the Mugla region in Turkey, using geographic information system (GIS) and remote sensing (RS) techniques. Images captured by ASTER Level 3A01 (3D Ortho Data Set), Landsat 5, and Landsat 7 satellites between 2001 and 2009 were used for the analysis. Changes in the natural vegetation as a function of the production level in the marble quarry were calculated using the normalized difference vegetation index. According to the study results, land cover and natural vegetation decreased by less than 3 per cent and 1 per cent respectively between 2001 and 2009, following an upsurge in mining activity in the region.
• Annavarapu, S., Wilson, T., Momayez, M., & Cronin, A. (2009). Geotechnical Considerations for Solar Panel Installation on Mine Tailings. 26th Annual Meetings of the American Society of Mining and Reclamation and 11th Billings Land Reclamation Symposium, 1, 37-43.
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  Abstract: Geotechnical stability considerations are important for the installation of solar panels on mine tailings areas. Active tailings deposition areas consist of coarse-grained, free-draining relatively stable particulate mass at the perimeter with fine-grained, low shear strength mass around the supernatant pond in the deposition area. An evaluation of the geotechnical stability of the supports for the solar panels constructed, which will have their foundations placed on mine tailings, is essential so that the orientation of the solar panels can be maintained within suitable limits. An assessment of the forces imposed on the solar panel supports, including the distributed weight of the solar panel arrays and effect of wind loading on the flat array surfaces, also need to be considered in the design of suitable foundations for these supports. This paper enumerates some of the geotechnical issues related to the installation of solar panel arrays on active and inactive mine tailings areas.
• Momayez, M., Wilson, T., Cronin, A., Annavarapu, S., & Conant, B. (2009). An Investigation to Use Tailing Ponds as Solar Photovoltaic Farms. 26th Annual Meetings of the American Society of Mining and Reclamation and 11th Billings Land Reclamation Symposium, 2, 817-832.
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  Abstract: Fine-grinding of ores for the liberation of metal-or other valuable concentrates most often results in acreage dedicated to tailings impoundments. A determination of the post-mining land use of such acreage is then required. Tailings impoundments can be suitably utilized as sites for installation of solar photovoltaic (PV) panels. The electrical energy produced can be used initially for mining and concentrating operations, and subsequently for the utility grid after mine closure is complete. Since the extraction, processing and transport of minerals is energy-intensive, most mines already have a substantial electrical transmission-line infrastructure. This eliminates one of the major costs associated with PV energy farms. In this paper, we analyze the long-term economic benefit (i.e. payback period) of PV installation and energy production at mine sites. We also discuss integrating PV systems with erosion control and revegetation measures.
• Husseini, B. E., Momayez, M., & Hassani, F. (2008). Non-invasive methods for seepage detection, mapping and monitoring in embankment dams. Association of Dam Safety Officials - Dam Safety 2008.
• Momayez, M., Hassani, F., Guevremont, P., & O'DONNELL, D. (2002). Evaluation of Shotcrete Rock Support Systems in Underground Mines by a New Non-Intrusive Technique. CIM (Canadian Institute of Mining, Metallurgy and Petroleum) Bulletin, 95(1063), 65--68.
• Hassani, F., Guevremont, P., Momayez, M., Saleh, K., & Tremblay, S. (2001). A New Method for Testing Concrete in Dams. Hydro Review Journal, 20(1), 54--63.
• Sadri, A., Hassani, F., & Momayez, M. (1998). Application of the miniature seismic reflection (MSR) system for monitoring dynamic changes in mechanical properties of rocks. International Journal of Rock Mechanics and Mining Sciences, 35(4), 618--619.
• Hassani, F., Guevremont, P., Momayez, M., Sadri, A., & Saleh, K. (1997). Application of Nondestructive Evaluation Techniques on Concrete Dams. International Journal of Rock Mechanics and Mining Sciences, 34(3).
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  Abstract: A project is presented on the application of the Miniature Seismic Reflection (MSR) system for the evaluation of concrete dams and the possibility of finding cracks in these structures by seismic nondestructive method. It is shown that MSR system could be capable of evaluating the profile of cracks in concrete and determining the quality of concrete of a dam from one available face. Tests conducted on three concrete slabs are also presented. These tests are shown to help determine the precision of the MSR system's defect location capability with regards to inclined crack detection.
• Hassani, F., Sadri, A., & Momayez, M. (1997). A Miniature Seismic Reflection System for Evaluation of Concrete Linings. Pure and Applied geophysics, 150(3-4), 677--691.
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  Abstract: The study presented in this paper demonstrates the application of a miniature seismic reflection (MSR) system as a nondestructive testing tool for evaluation of concrete shaft and tunnel linings. First, the principles of the system are described. Then, results obtained from experimental studies on a concrete shaft lining are presented. Various sections of a shaft lining at different elevations are investigated and their elastic properties at each point are calculated. In another field study, the thickness of the tunnel lining is computed using this system In both cases, the MSR values are in agreement with results obtained by independent laboratory testing of core samples extracted from the linings.
• Sadri, A., Hassani, F., Momayez, M., & Saleh, K. (1997). Determination of Concrete Dynamic Elastic Constants Using a Miniature Seismic. Reflection (MSR) System. Journal of Material Evaluation, 55(7), 817-820.
• Momayez, M., Hassani, F., Hara, A., & Sadri, A. (1996). Application of Radar in Canadian Mines. CIM (Canadian Institute of Mining, Metallurgy and Petroleum) Bulletin, 89(1001), 107-110.
• Momayez, M., & Hassani, F. (1994). Kaiser Effect: A New Method for In-Situ Stress Measurement.. International Journal of Rock Mechanics and Geomechanical Abstracts, 32(5).
• Mlakar, V., Hassani, F., & Momayez, M. (1993). Crack Development and Acoustic Emission in Potash Rock. International Journal of Rock Mechanics and Mining Sciences, 30(3), 305--319.
• Momayez, M., Hassani, F., & Hardy, H. (1992). Maximum Curvature Method: A Technique to Estimate Kaiser-Effect Load From Acoustic Emission Data. Journal of Acoustic Emission, 10(3-4), 61--65.
• Momayez, M., Hassani, F., & Hardy, H. R. (1991). Maximum curvature method: a technique to estimate Kaiser-effect load from acoustic emission data. Journal of acoustic emission, 10, 61-65.

Proceedings Publications

• Alsalhi, A., Tenorio Gutierrez, V. O., Momayez, M., Heath, G., Werner, J. D., & Peters, M. P. (2021, Spring). Development of a Supervisory System for Monitoring Ventilation and Rock Displacement Data at San Xavier Mine Laboratory. In 2021 SME Annual Meeting & Expo (MineXchange 2021).
• Butani, M., & Momayez, M. (2021, March). Heat management alternatives in deep underground mines as a crucial part of mine ventilation. In Annual Conference of the Society for Mining, Metallurgy and Exploration.
• Chaurasia, A., Momayez, M., & Muralidharan, K. (2020, February). More Efficient Way to Increase Ventilation in Deep Underground Mine. In Annual Conference of the Society for Mining, Metallurgy and Exploration.
• Cordova, V., & Momayez, M. (2020, February). Machine Learning Model for Prediction of Core Body Temperature based on Wearable Non-Invasive Monitoring Devices. In Annual Conference of the Society for Mining, Metallurgy and Exploration.
• Cordova, V., & Momayez, M. (2020, February). The Effects of Cooling Technologies on Core Body Temperature Monitored During Mining Activity. In Annual Conference of the Society for Mining, Metallurgy and Exploration.
• Lazaro, P., & Momayez, M. (2020, February). Modification of the PHS Model to Predict Heat Stress. In Annual Conference of the Society for Mining, Metallurgy and Exploration.
• Peters, P., Momayez, M., & Heath, G. (2021, March). Advanced automated monitoring of a Tailings Facility: How coupling geophysics and in-situ sensors can increase safety and provide a cost-effective inside into Tailings Dams.. In Annual Conference of the Society for Mining, Metallurgy and Exploration.
• Rao, P., Momayez, M., & Muralidharan, K. (2020, February). Heat Management Alternatives in Deep Underground Mines as a Crucial Part of Mine Ventilation. In Annual Conference of the Society for Mining, Metallurgy and Exploration.
• Beltran, C., Belmar, R., Risso, N., Momayez, M., & Salgado, F. (2019, February). Incorporating the use of Renewable Energy in the Mining Industry. In Annual Conference of the Society for Mining, Metallurgy and Exploration.
• Griffin, S., Burgess, J., Momayez, M., Harber, P., & Staack, D. (2019, February). Assessment of the Predicted Heat Strain Model and Measures of Heat Strain in Mining. In Annual Conference of the Society for Mining, Metallurgy and Exploration.
• Lazaro, P., & Momayez, M. (2019, February). Determination and Comparison of Thermal Stress Indices in Mining: TWL, PHS and WBGT. In Annual Conference of the Society for Mining, Metallurgy and Exploration.
• Lazaro, P., Momayez, M., & Cordova, V. (2019, April). Development of a Modified Predicted Heat Strain Model for Hot Work Environments.. In 2019 North American Mine Ventilation Symposium.
• Pratish, R., Momayez, M., & Muralidharan, K. (2019, April). Fabrication of Cost-Effective Heat Insulation as Efficient Solutions in Mine Ventilation Systems.. In 2019 North American Mine Ventilation Symposium.
• Rao, P., & Momayez, M. (2019, February). Synthesis and Characterization of Sprayable Thermally Insulating Material as Heat Regulators in Deep Underground Mines. In Annual Conference of the Society for Mining, Metallurgy and Exploration.
• Risso, N., & Momayez, M. (2019, February). Achieving Safety and Comfort with an Environment-Aware Ventilation System for Underground Mines. In Annual Conference of the Society for Mining, Metallurgy and Exploration.
• Risso, N., & Momayez, M. (2019, February). Increasing Robustness and Predictability in the Mining Industry through Data Analytics and Integration. In Annual Conference of the Society for Mining, Metallurgy and Exploration.
• Risso, N., Palomino, O., Momayez, M., Tenorio, V., & Lundin, J. (2019, February). Smart Mines. In Annual Conference of the Society for Mining, Metallurgy and Exploration.
• Gupta, G., Momayez, M., & Muralidharan, K. (2018, February). Molecular Dynamics Modeling for Development of Mechanically Robust Low Thermal Conductivity Material for Heat Insulation in Hot Underground Mines. In Annual Conference of the Society for Mining, Metallurgy and Exploration.
• Gupta, G., Muralidharan, K., Momayez, M., & Doug, L. (2018, May). Porous AluminoSilicate Structures with Tunable Thermal Transport Properties. In Annual Meeting of the Glass and Optical Materials Division of the American Ceramic Society.
• Lazaro, P., & Momayez, M. (2018, Februrary). Validation of the PHS Model in Hot Underground Mines. In Annual Conference of the Society for Mining, Metallurgy and Exploration.
• Rao, P., Muralidharan, K., Momayez, M., & Doug, L. (2018, May). Additive Manufacturing of AluminoSilicate-Polymer and Carbon Composites. In Annual Meeting of the Materials Research Society.
• Rao, P., Muralidharan, K., Momayez, M., & Doug, L. (2018, May). Fabrication of Porous Alkali Aluminosilicate Foams via 3D Printing. In Annual Meeting of the Materials Research Society.
• Momayez, M. (2017, Februrary). System for Managing Advanced Response Technology (SMART) in Mines. In Annual Conference of the Society for Mining, Metallurgy and Exploration.
• Rao, P., Momayez, M., & Muralidharan, K. (2017, Februrary). Development of AluminoSilicate Foam as a Thermal Insulator. In Annual Conference of the Society for Mining, Metallurgy and Exploration.
• Rao, P., Momayez, M., Muralidharan, K., Runge, K., & Doug, L. (2017, Februrary). Synthesis and Characterization of AluminoSilicate Network Structures with Controllable Porosity: Applications as Light-Weight Mechanically Robust Thermal Insulators. In Annual Conference of the Society for Mining, Metallurgy and Exploration.
• Xijin, S., & Momayez, M. (2016, May). Analysis of Frequency Domain Electromagnetic Response Characteristic in Inhomogeneous Medium. In International Conference on Mechanics Design, Manufacturing and Automation, 16.
• Xijin, S., Momayez, M., & Bo, D. (2016, June). Skin Effects of Induced Eddy in Lossy Layered Stratum. In International Conference on Electronic Information Technology and Intellectualization, 5.
• Ureel, S., & Momayez, M. (2015, November). Current and Future Methods to Calculate and Determine the Factor of Safety for Rock Slopes in Mining and Civil Engineering Applications. In 2nd South American Congress on Rocks Mechanics, 7.
• Heath, G., Poulton, M., & Momayez, M. (2014, September). Remote Controlled Monitoring for Closure of the Carlota Mine. In 2014 AIPG/AHS - Water and Rocks, the Foundations of Life National Conference.
• Lu, H., Luo, Z., & Momayez, M. (2014, May). An Integrated Modelling and Numerical Simulation for Rock Mass Assessment in Underground Mines. In Rock Mechanics and Its Applications in Civil, Mining, and Petroleum Engineering, 759-768.
• Ureel, S., & Momayez, M. (2014, August). An Investigation of the Limit Equilibrium Method and Numerical Modeling for Rock Slope Stability Analysis. In Rock Mechanics and Its Applications in Civil, Mining, and Petroleum Engineering, 218--227.
• LeTran, P., & Momayez, M. (2013, November). Acoustic-Mediated Platelet Activation: A Novel Pro-Thrombotic Mechanism Linking Obstructive Sleep Apnea and Cardiovascular Disease. In Proceedings of the Scientific Sessions 2013 Conference, American Heart Association.
• Leyland, R., & Momayez, M. (2013, September). Experimental Studies to Quantify Gravel Loss from Unsealed Roads in the Kruger National Park, South Africa. In Association of Environmental & Engineering Geologists 56th Annual Meeting.
• Chandarana, U., Momayez, M., & Slack, D. (2012, May). A Review of Land Surface Changes Before and After an Earthquakes. In The 4th KKU International Engineering Conference.
• Momayez, M., & Scoble, M. (2011, March). Technology-Assisted Shared-Teaching and Instruction: Impact on Student Learning and Attendance. In Symposium on the Application of Geophysics to Engineering and Environmental Problems 2011, 538--538.
• Freund, F. T., Hoenig, S. A., Braun, A., Dahlgren, R. P., Momayez, M., & Chu, J. J. (2010, January). Softening rocks with stress-activated electric current. In Rock Stress and Earthquakes - Proceedings of the 5th International Symposium on In-Situ Rock Stress, 839-843.
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  Abstract: When rocks are subjected to mechanical stress, dormant electronic defects become activated. This activation produces electron-hole pairs, which increase the electrical conductivity of rocks by releasing highly mobile defects electrons, equivalent to O - in a matrix of O 2-, called positive holes and symbolized by h*. The h* charge carriers can spread from the stressed rock into surrounding unstressed rocks. Preventing the outflow of h* alters the mechanical properties of the rocks: they become softer and weaker. Ongoing studies point to a delocalization of the wave function associated with the h* charge carriers, which is far-reaching and affects many neighboring O 2-. Although the number density of positive holes may be as low as 1 in 1000, essentially all O 2- in the rock subvolume lose some of their electron density. This loss weakens the interatomic bonds between anions and cations, thus affecting the mechanical properties of rocks. © 2010 Taylor & Francis Group, London.
• Momayez, M., Cronin, A., & Annavarapu, S. (2010, February). Use of Mine Tailings Areas as Solar Photovoltaic Farms: A Technical Analysis. In Annual Conference of the Society for Mining, Metallurgy and Exploration.
• Dahlgren, R., Freund, F., Momayez, M., Bleier, T., Dunson, C., Joggerst, P., Jones, K., & Wang, S. (2009, December). In-Situ Stressing of Rock: Observation of Infrared Emission Prior to Failure. In AGU Fall Meeting Abstracts.
• Liu, Y., Momayez, M., & Tong, D. (2009, March). Estimation of Soil Moisture from Remote Sensing Data and Cokriging. In 22nd EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems.
• Tong, D., Momayez, M., & Liu, Y. (2009). Estimation of Soil Moisture from Remote Sensing Data and Cokriging. In SAGEEP.
• Tong, D., Momayez, M., & Liu, Y. (2009). Estimation of soil moisture from remote sensing data and cokriging. In SAGEEP.
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  Areas of high soil moisture associated with high pore pressure can decrease the shear strength of the material making a slope susceptible to fail. In a humid environment, the distribution of soil moisture is typically determined based on topography. However, in a semi-arid environment, little research has been conducted to assess the relationship between soil moisture and topography index, such as Topography Wetness Index (TWI) due to excessive costs, time restrictions and/or poor accessibility. This paper examines the relationship between the two variables (soil moisture and TWI) in the Walnut Gulch Experimental Watershed using remote sensing techniques. Soil moisture has been measured at few sample sites in the watershed. Images from the Shuttle Radar Topography Mission (SRTM) were used to create digital elevation models to obtain the Topography Wetness Index. A continuous soil moisture map was then created using geostatistical interpolation, incorporating the relationship between the two variables. The cross-validation method has been used to check the accuracy of the interpolation.
• Hosseini, Z., Momayez, M., Hassani, F., & L\'evesque, D. (2008). Detection of inclined cracks inside concrete structures by ultrasonic SAFT. In Review of Progress in Quantitative Nondestructive Evaluation: 34th Annual Review of Progress in Quantitative Nondestructive Evaluation, 975, 1298--1304.
• Thompson, D. O., Momayez, M., Levesque, D., Hosseini, Z., Hassani, F., & Chimenti, D. E. (2008). DETECTION OF INCLINED CRACKS INSIDE CONCRETE STRUCTURES BY ULTRASONIC SAFT. In AIP Conference Proceedings, 975, 1298-1304.
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  Detection of internal defects in concrete structures is a difficult task as these anomalies are not always observable at the surface, yet have the potential to expand and damage the structure. The focus of this work is to locate and characterize inclined cracks inside a concrete mass which is essential in monitoring the integrity of many civil structures. For this purpose, three concrete slabs were constructed each having a different sub‐horizontal crack. To obtain high resolution images of the concrete interior, an extension of the ultrasonic technique known as SAFT is used. SAFT has shown great potential to produce detailed 3D images of tendon ducts, holes and flaws inside concrete structures. The results of this study show that cracks with angles varying from 5 to 15 degrees can be accurately located inside a concrete slab having a thickness of up to 200 mm.
• Hosseini, Z., Momayez, M., & Hassani, F. (2007, January). Inspection of rock-concrete interface in underground support systems using a Non-destructive Testing technique. In Proceedings of the 1st Canada-US Rock Mechanics Symposium - Rock Mechanics Meeting Society's Challenges and Demands, 2, 1541-1546.
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  Abstract: Concrete and shotcrete linings are widely used for temporary or permanent support in underground excavations. If applied properly, shotcrete is a durable material with excellent bonding characteristics. A fragmented damaged or poorly installed shotcrete support system, however, can create a less stable environment than the unsupported rock mass. It is therefore necessary to inspect periodically the integrity of shotcrete lining. At present, a non-destructive testing technique is being developed by the authors to examine the condition of the interface between the rock and the lining. This paper presents the results of the research carried out to reconstruct a detailed 3D image of the rock-concrete interface from ultrasonic data. To obtain high resolution images of the interior of concrete, incident ultrasonic waves could be focused in the test medium using a 3D SAFT (Synthetic Aperture Focusing Technique) algorithm. To test the accuracy and sensitivity of SAFT for profiling the rough rock-concrete interface, a thin concrete slab with an undulating bottom surface was constructed. Ultrasonic data were acquired on a rectangular grid. It is shown that the resolving power of the 3D SAFT algorithm is sufficient to provide an accurate profile of the rock-concrete interface and to locate voids within the medium. © 2007 Taylor & Francis Group.
• Hosseini, Z., Momayez, M., Hassani, F., & Levesque, D. (2007, July). Detection of Inclined Cracks Inside Concrete Structures by Ultrasonic SAFT. In Review of Progress in Quantitative Nondestructive Evaluation.
• Momayez, M., Hosseini, Z., & Hassani, F. (2006, June). Locating and Characterizing Inclined Cracked in Concrete Using SAFT. In NDE Conference on Civil Engineering.
• Momayez, M., Hassani, F., & Garbutt, M. (2003, August). Application of MSR Technology to Evaluate Shotcrete Rock Support Systems. In Surface Support Liners.
• Momayez, M., & Hassani, F. (2002, April). Non-Destructive Monitoring of Shotcrete in Underground Mines. In Annual General Meeting (AGM) Quebec Mining Association.
• Momayez, M., Hassani, F., Saleh, K., & Guevremont, P. (2002, July). Application of MSR Non-destructive Testing Technique to Monitor the Condition of Concrete Dams. In HydroVision 2002, 77.
• Momayez, M., Hassani, F., Guevremont, P., & O'Donnell, D. (2001, May). Evaluation of Shotcrete Rock Support Systems in Underground Mines by a New Non-Intrusive Technique. In 103rd CIM Annual General Meeting.
• Guevremont, P., Hassani, F., & Momayez, M. (2000, June). Using NDT for Thickness Measurement of Shotcrete Rock Support Systems in Underground Mines. In Review of Progress in Quantitative Nondestructive Evaluation, 19, 1701--1707.
• Momayez, M., Guevremont, P., Hassani, F., & Saleh, K. (2000, July). Concrete NDT Comes of Age: Condition Assessment of a Concrete Spillway Crest Slab. In 4th IRCOLD Conference, 12.
• Momayez, M., Hassani, F., Saleh, K., & Guevremont, P. (2000, June). Application of a Non-Destructive Testing Technique to Monitor the Condition of a Buttress at MANIC5 Hydroelectric Dam in Quebec. In 28th International Commission on Large Dams (ICOLD) Conference.
• Momayez, M., Guevremont, P., & Hassani, F. (1999, August). Nondestructive Shotcrete Thickness Measurement In Underground Mines. In 9th ISRM Congress, 1297-1302.
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  Abstract: This paper presents recent in situ and laboratory tests performed on shotcrete liners and test samples. The test were performed with a nondestructive microseismic method called Impact-Echo. Initial investigations at INCO Ltd's Stobie Mine in Sudbury, Ontario, Canada, confirmed the need for the development of a quick and efficient device capable of determining the thickness of the thin liners. The field study shows that the P-wave velocity in shotcrete is critical for the correct assessment of the liner thickness. Laboratory tests were performed on shotcrete samples at McGill University. The in situ tests concentrate on the liner thickness measurements and the laboratory tests focus on the change in P-wave velocity and acoustic impedance over time.
• Hassani, F., Sadri, A., & Momayez, M. (1997, May). Non-Destructive Monitoring of Concrete Mine Shafts. In 99th CIM Annual General Meeting.
• Hassani, F., Sadri, A., Guevremont, P., Saleh, K., & Momayez, M. (1997, June). Application of Non-Destructive Evaluation Techniques on Concrete Dams. In 36th U.S. Rock Mechanics Symposium.
• Momayez, M., & Hara, A. (1995, May). Application of Ground Probing Radar in the Kidd Creek Mine. In 97th CIM Annual General Meeting, 111-117.
• Momayez, M., & Hassani, F. (1996, June). A Study into the Effect of Confining Pressure on Stress Memory. In Proceedings of the 6th Conference on Acoustic Emission/Microseismic Activity in Geological Structures and Materials, 187-194.
• Sadri, A., Hassani, F., & Momayez, M. (1996, June). Application of MSR for Evaluation of Excavated Tunnel and Shaft Concrete Lining. In Proceedings of the 2nd North American Rock Mechanics Symposium, 875-882.
• Sadri, A., Hassani, F., & Momayez, M. (1996, September). MSR: A Modification of Impact-Echo System for Evaluation of Physical Properties of Concrete. In Proceedings of the Third Conference on Nondestructive Evaluation of Civil Structures and Materials.
• Momayez, M., & Hassani, F. (1995, June). Application of GPR for Mapping and Monitoring Underground Rock Mass Excavations. In Eight International Congress on Rock Mechanics, 1345-1348.
• Momayez, M., Sadri, A., & Hassani, F. (1995, July). Impact-Echo: a Technique for Determining the Mechanical Properties of Rocks.. In 35th US Rock Mechanics Symposium, 843--848.
• Sadri, A., Momayez, M., & Hassani, F. (1995, May). An Overview of Nondestructive Testing Methods for Concrete Structures. In Proceedings of the International Conference on Composite Materials and Energy, 692-698.
• Sadri, A., Momayez, M., & Hassani, F. (1995, May). Non-Destructive Evaluation of Grouted Ducts on the Champlain Bridge. In Proceedings of the International Conference on Composite Materials and Energy, 699-705.
• Maluf, A., Daneshmend, L., & Momayez, M. (1994, July). Image Encoding and Perception of Ground Probing Radar. In Fifth International Conference on GPR, 701-709.
• Momayez, M., Hara, A., Hassani, F., & Sadri, A. (1994, July). Application of GPR for a More Efficient Mine Planning. In Fifth International Conference on Ground Penetrating Radar, 907-913.
• Momayez, M., Hassani, F., & Arjang, B. (1994, July). Evaluation of Kaiser Effect as a New Method of In Situ Stress Measurement. In Fourth International Mining Symposium, 201-211.
• Momayez, M., Hassani, F., & Sadri, A. (1994, July). Application of Ground Probing Radar in Mining Engineering. In Fourth International Mining Symposium, 266-272.
• Momayez, M., Sadri, A., & Hassani, F. (1994, July). A Comparative Study of Ground Probing Radar and Impact Echo Nondestructive Techniques for Detecting and Locating Buried Objects. In Fifth International Conference on Ground Penetrating Radar, 433-448.
• Momayez, M., & Hassani, F. (1992, July). Application of Kaiser Effect to Measure In-Situ Stresses in Underground Mines. In 33rd US Rock Mechanics Symposium, 979-987.
• Momayez, M. (1990, October). Stress Memory Measurement in Geological Materials Using the Kaiser Effect of Acoustic Emission. In Progress in Acoustic Emission V, 476-483.

Presentations

• Risso, N., Momayez, M., Saavedra, M., Aguilera, C., & Campos, P. (2020, February). Increasing Safety Using IoT-Based Solutions for Mine Tailings Monitoring. 2020 SME Arizona Conference.
• Lazaro, P., & Momayez, M. (2016, December). Application of Wearable Technologies for the Development of a Heat Strain/Stress Model in Hot Underground Mines. 2016 SME Arizona Conference. Tucson, AZ, USA.
• Momayez, M. (2016, February). Optical Fiber Based Air Properties Measurement for Distributed Sensing in Underground Mines. Annual Conference of the Society for Mining, Metallurgy and Exploration. Denver, CO, USA.
• Rao, P., Momayez, M., & Muralidharan, K. (2016, February). Mechanically Robust, Thermally Insulating Alumino-silicate Coatings For Underground Mines. Annual Conference of the Society for Mining, Metallurgy and Exploration. Denver, CO, USA.
• Rao, P., Momayez, M., Muralidharan, K., & Runge, K. (2016, December). Sprayable Low-Cost thermal insulation. 2016 SME Arizona Conference. Tucson, AZ, USA.
• Momayez, M. (2015, December). Distributed Sensing in Underground Mines. 2015 SME Arizona Conference. Tucson, AZ, USA.
• Heath, G., & Momayez, M. (2013, December). Using Electrical Resistivity Tomography (ERT) to Map Groundwater Flow Over Time. Mine Water Seminar. Tucson, AZ, USA: Freeport McMoran.
• Li, P., Chan, C., Hao, Q., Deymier, P. A., Lucas, P., Muralidharan, K., Gervasio, D. F., Momayez, M., Jeter, S. M., Teja, A. S., & Kannan, A. M. (2013, April). Halide and Oxy-halide Eutectic Systems for High Performance High Temperature Heat Transfer Fluids. Concentrating Solar Power Program Workshop. Phoenix, AZ: DOE.
• Momayez, M. (2012, May). Fiber Optics Distributed Sensing: Could This Technology Change the Future of Border Security Monitoring?. 8th Border Security Conference. El Paso, TX, USA.
• Liu, Y., & Momayez, M. (2009, March). Slope Stability Analysis Through Integration of Ground Measurement and Remote Sensing. ASPRS 2009 Annual Conference. Baltimore, MD, USA.
• Momayez, M. (2009, April). Geomaterials Characterization. Weekly Seminar. Tucson, AZ, USA: University of Arizona - Department of Civil Engineering and Engineering Mechanics.
• Momayez, M. (2009, April). Mine Stability and Earthquake Precursor Detection. GeoDaze 2009, 37th Annual Geosciences Symposium. Tucson, AZ, USA: University of Arizona - Department of Geosciences.
• Momayez, M. (2009, October). Integration of Ground-Based and Remote Sensing Data for Geotechnical Analysis. Bouyoucos Conference for the Advancement of Geophysical Technologies Applied to Agroecosystems. Albuquerque, NM, USA: U.S. Dept. of Agriculture.
• Momayez, M. (2008, November). Geomaterials Characterization. Weekly Seminar. Brisbane, Australia: Queensland University - Department of Mining Engineering.
• Momayez, M. (2007, December). Evaluation of Refractory Bricks Regression. Seminar. Brisbane, Australia: CRC Mining.

Poster Presentations

• Lazaro, P., Cordova, V. L., & Momayez, M. (2019, January). Detection and Prevention of Heat Stress in Mines. Mining Summit. Dan Dunlap Stadium Club, University of Arizona Football Stadium: Lowell Institute for Mineral Resources.
• Momayez, M. (2019, January). Personalized Mine Safetyand Health Monitoring. Mining Summit. Dan Dunlap Stadium Club, University of Arizona Football Stadium: Lowell Institute for Mineral Resources.
• Do, Y., Rao, P., Momayez, M., & Muralidharan, K. (2018, December / Fall). GeoFoams: New Materials for Strength and Thermal Applications. 2018 Arizona Tech Council Meeting. San Xavier Underground Laboratory: Arizona Tech Council.
• Lazaro, P., & Momayez, M. (2018, December / Fall). Heat Stress Model. 2018 Arizona Tech Council Meeting. San Xavier Underground Laboratory: Arizona Tech Council.
• Rao, P., Momayez, M., Muralidharan, K., & Runge, K. (2018, December / Fall). Sprayable Low-Cost Thermally Insulating Shotcrete. 2018 Arizona Tech Council Meeting. San Xavier Underground Laboratory: Arizona Tech Council.
• Risso, N., Palomino, O. L., Momayez, M., & Tenorio Gutierrez, V. O. (2018, December / Fall). Smart Mines. 2018 SME Arizona Conference. JW Marriott Tucson Starr Pass Resort & Spa: SME Tucson Section.
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  Nowadays, society is facing the advent of the 4th Industrial Revolution, characterized by a fusion and integration of technologies. Notions associated to this paradigm include the Industrial Internet of Things (iIoT) and Smart manufacturing technologies, which carry the promise of improved safety and productivity, within a sustainable and integrated framework. These notions are consistently being incorporated in the development of “smart cities”, or cities that aim to be more efficient, sustainable, equitable and livable. This idea is extended in the minerals industry to the concept of smart mine. A smart mine should integrate the physical and IT infrastructures, to the social and business dimensions, in order to leverage its intelligence and achieve a more sustainable and profitable process. But to what extent does the mining industry catch up with these ideas, and what is currently missing? In this work, we formalize the notion of smart mines and provide a brief survey on the current advances existing in the industry, which lead to the implementation of a smart mine. We link ideas from smart cities to potential applications in the minerals industry which may allow for safer and more efficient production. Additionally, we provide a brief discussion on the impacts and challenges associated to the incorporation of these new technological advancements to different areas in the mining industry. Finally, we identify as main impacts of the implementation of smart mines: (1) a shifting in maintenance and dynamic allocations of resources, towards automated and intelligent supply systems; (2) an increase in the use of biosensors integrated to intelligent infrastructure, to achieve safer work environments; (3) the consolidation of autonomous technologies and tele-operation for working in harsh environments and remote locations; (4) an evolution of the decision-making process based on the tactical visualization of critical information; and (5) the development of new management structures and regulations which can provide safety and guarantee confidentiality in accordance to the use of these new technologies.
• Yang, S., Tenorio Gutierrez, V. O., Momayez, M., Gravley, S., & Werner, J. D. (2018, September). Study on Pressure Waves Propagation in an Underground Mine. MEI2018 Conference & Expo. Las Vegas, NV.: Mining & Exploration International.
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  The pressure wave is a kind of elastic wave that exists in mass flow. When pressure is changed, a positive or negative wave occurs, and spreads far away. The speed of the pressure wave is related to gas density, pressure, and temperature. Usually, the speed of the pressure wave is roughly equal to the speed of sound (340m/s). Survey of the pressure wave can be used to estimate the location of any pressure wave event, such as pipe crack or pipe burst. The pressure wave also exists in ventilation systems for underground mines, where it can be used to estimate the air door status and special events, such as methane outburst, local fan’s status and gas explosion. Although the pressure wave is difficult to measure, it is very necessary to detect it, find the source of its occurrence, trace any possible spreading, and measure its impact in the ventilation system.
• Carpio, J. M., Tenorio Gutierrez, V. O., Momayez, M., & Gravley, S. (2016, March). Shaft and Hoisting System Operational Analysis at San Xavier Mine Lab. 2016 Latin America-UA Winter Program. University of Arizona: OLAPI.
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  Hoisting systems and shafts are vital components of underground mines for transporting personnel, equipment and supplies to the working levels, and to bring up to the surface the valuable minerals extracted. Safe and efficient functioning of mine shafts are critical to all underground operations. This research deals with the design specifications and functional analysis of a hoisting system operating in a vertical shaft at the San Xavier Mining Laboratory (SX) in Sahuarita, AZ. A simulation of the hoisting cycle is also. This system has important features such as SafeHoist® autonomous system, a Lily Overspeed Hoist Controller and a skip monitoring system along of the shaft. These components enable a closer examination at the depth where vibration peaks are occurring and activate the safety brakes. It is essential to reduce damages in the hoisting system before major repairs and equipment replacement are required.
• Diaz, N. B., Tenorio Gutierrez, V. O., Momayez, M., & Gravley, S. (2016, March). Design of a refuge station for rail-mounted mining equipment. 2016 Latin America-UA Winter Program. University of Arizona: OLAPI.
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  Mining provides the building block for human development. Minerals and metals are key to all services and infrastructure that are used by contemporary society (i.e., shelter, food and water supply, energy supply, transportation, manufacturing and health). As the size of population growth, coupled with ongoing requirements in the developed world, the demand for minerals and metals becomes stronger. In this regard, research into the area must be aimed at finding and developing new mines as well as dealing with the new challenges facing it. One of these challenges is the important trend that are pushing mining companies to take a look at underground operations, despite the cost advantages of surface. The design of a chamber that will work as a refuge station for parking rail-mounted mining equipment is required. Two mine cars and a pneumatic mucker will be parked inside, allowing space for maneuvering. Some simplification in terms of rock strength and faults is acceptable. It will be included a typical work cycle for a hypothetical production plan for the stope. The case will be modeled using 3D software.
• Figueiredo dos Santos, J., Momayez, M., Tenorio Gutierrez, V. O., & Lowell, G. D. (2015, Summer). Updating the 3D model of San Xavier Mine Laboratory using Point Cloud. Latin America Summer Research Program 2015. Mining and Geological Engineering Department.
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  The mining industry can take advantage of new technologies that help to achieve production goals and provide safety to operators and equipment. Surveying is an essential task, required for controlling the advancement of excavations with accuracy. 3D laser scanning is a powerful tool that collects accurate data by measuring multiple distances creating a cloud of points, and assembling them to produce a realistic image with volumetric properties and provide an enhanced visualization of topographical attributes following the actual shape of the mine. For updating the historical San Xavier Underground Mine, a I-Site 4400 scanner was utilized to create a complete spatial model.The objectives are:• Updating the topographical features of the existing 3D model of the San Xavier Mine; • Measure the volumes of all excavations;• Prepare the layout for merging with the Geological model.
• Gamboa, J., & Momayez, M. (2013, December). Snoring Your Way to Increased Cardiovascular Risk: Endothelial Dysfunction and Thrombogenicity. Frontiers - American Heart Association. Tucson, AZ, USA: Frontiers - American Cancer Society.

Others

• Momayez, M. (2012, January). Preface. Proceedings of the Symposium on the Application of Geophysics to Engineering and Environmental Problems, SAGEEP.