Physical Sciences and Mathematics Commons^™

Discussion On Multi-Sphere Responses And Damage Reduction-Oriented Geological Guarantees In Coal Mining, Wang Shuangming, Sun Qiang, Li Shibo, Hu Xin, Gu Chao, Geng Jishi, Zhou Shutao, Yuan Shihao, Song Shijie, Niu Chao, Wu Yun, Chen Yang

Coal Geology & Exploration

Objective Coals serve as a cornerstone for ensuring the energy security of China. However, coal mining activities break the original in situ stress equilibrium, triggering multi-sphere damage conduction and coupling responses in the lithosphere, hydrosphere, pedosphere, biosphere, and atmosphere from underground to the surface, involving rock mass structure, groundwater, and surface environment. Consequently, the original structural relationships, occurring elements, and functions of these spheres will be changed. Presently, investigating the multi-sphere structural evolution, conservation, and utilization in coal mining to underpin the role of coals as an energy cornerstone is significant for resolving the contradiction between the high-quality development of …

Table Of Contents, The Editors

Coal Geology & Exploration

No abstract provided.

Influence Mechanisms Of Soil Layer Reconstruction And Fungal Inoculation On Plant Water Use In Waste Dumps, Bi Yinli, Li Zhongqing, Ke Zengming, Peng Suping

Coal Geology & Exploration

Objective In the mining areas of open-pit coal mines in the arid and semi-arid regions in western China, water scarcity severely restricts ecological restoration. As preliminary ecological effects have been achieved through soil layer reconstruction and bioremediation-based reclamation technologies in waste dumps of the mining areas, there is an urgent need to investigate the effects of both technologies on the water use and growth of representative plants. This will provide a scientific basis for accelerating ecological restoration in the mining areas. Methods In a waste dump of the Heidaigou open-pit coal mine in Inner Mongolia, four experimental program for soil …

Influence Patterns Of Coal Mining-Induced Subsidence On Economic Losses From Soil Erosion Of Loess Slopes In The Middle Reaches Of The Yellow River, Song Shijie, Li Yuanhong, Wang Yi, Liu Lu, Tian Yu, Tan Qingyu

Coal Geology & Exploration

Background Quantitative assessment of economic losses from soil erosion on subsidence slopes in coal mining-induced subsidence areas can offer a critical basis for formulating scientific economic compensation standards while also laying a solid foundation for efficient governance.Methods This study investigated the subsidence slopes with different morphologies in the typical loess area subjected to coal mining-induced subsidence in northern Shaanxi Province. Using methods including field sampling, laboratory tests, and environmental economics analysis, this study constructed an index system for the quantitative assessment of economic losses from soil erosion on coal mining-induced subsidence slopes and revealed the variation patterns of such …

Mechanisms Behind Consolidation-Induced Water Release From Effective Impermeable Soil Layers And Mine Water Inflow Prediction In Coal Mining, Li Tao, Gao Ying, Fan Limin, Yang Junwei

Coal Geology & Exploration

Background In the Yushen mining area, coal mining is gradually shifting toward areas with thick soil layers. This leads to continuous water release from the saturated soils above the hydraulically conductive fracture zones, thereby significantly increasing the burden of mine water drainage. Focusing on the Yushuwan Coal Mine in northern Shaanxi, this study investigated the mechanisms behind mining-induced water release from effective impermeable soil layers and predicted mine water inflow. Methods Using conventional hydrochemistry, isotopic hydrochemistry, and a high-throughput microbial sequencing method, this study conducted qualitative and quantitative identification of the primary water sources of a mine in the Yushuwan …

Numerical Simulations Of The Influence Of Vegetation Configuration On Dust Migration In Open-Pit Coal Mines, Han Li, Li Renjie, Bi Yinli

Coal Geology & Exploration

Background Dust pollution emerges as a major environmental challenge in the open-pit mining of coal mines. Ecological restoration has found widespread applications in mining areas as a crucial measure. However, there is a lack of systematic studies on the role of vegetation configuration in dust migration. Methods Using the computational fluid dynamics (CFD) method for numerical simulation, this study constructed a comprehensive simulation framework incorporating wind field reconstruction, dust migration, and the dust retention capacity of vegetation. By setting different particle sizes and wind speeds, this study systematically analyzed dust migration patterns. Furthermore, vegetation configuration was introduced into the simulation …

Links Of Intensification Chemical Weathering And Nickel Enrichment With Volcanism In The North China Plate Around The Permian-Triassic Boundary, Wang Ye, Ye Chengzhuo, Zhang Tong, Yang Minfang, Zhou Kai, Zhang Peixin, Yang Yuzhu, Zhang Chu, Lu Jing

Coal Geology & Exploration

Objective The North China Plate serves as a pivotal region for deciphering the mechanisms underlying the links of volcanism and paleoenvironmental-climatic upheavals around the Permian-Triassic Boundary (PTB). The dramatic environmental perturbations during this period are closely linked to large-scale volcanic eruptions of the Siberian Traps Large Igneous Province (STLIP). These eruptions triggered global warming, extreme chemical weathering events, and mass extinctions, marking a significant turning point in the evolution of the Earth system.Methods This study investigated the Sunjiagou and Liujiagou formations in the WY-U-01H borehole in the Qinshui Basin, North China Plate. Using the chemical index of alteration (CIA), …

Mechanisms Underlying The Impacts Of Reservoir Pore Structures On Near-Well Salt Precipitation In Co2 Geological Storage, Deng Chenguang, Sun Xiaolong, Liu Keyu, An Senyou, Yuan Guanghui, Wang Yuxiang

Coal Geology & Exploration

Objective and Method High CO₂ injectivity in reservoirs is essential for high-quality sites of CO₂ geological storage (CGS). Salt precipitation in the vicinity of injection wells due to brine dissolution in CO₂ emerges as a critical factor impairing CO₂ injectivity. To explore the differences in the mechanisms behind salt precipitation and damage degree across various reservoirs, this study conducted salt precipitation simulation experiments on sandstone samples with distinct pore structures using a high-temperature and high-pressure fluid displacement system. By combining methods such as cast thin section observations, scanning electron microscopy and resulting spectra, micro-X-ray fluorescence (micro-XRF) …

A Method For Detecting Weathered And Oxidized Zones In Shallowly Buried Coal Seams Integrating Logging And Dense Microtremor Array Technology, Ma Zhi, He Weisheng, Hu Qiuping, Guo Zhengxue, Zhou Jinju, Chen Tongjun, Yang Le, Yuan Zhichao

Coal Geology & Exploration

Objective The central and western regions of China hold abundant shallowly buried coal resources. However, the accurate exploration and safe, efficient development of coal seams in these regions are confronted with serious challenges due to weathering and oxidation. To achieve the cost-effective delineation of weathered and oxidized zones in shallowly buried coal seams, this study proposed a novel exploration method that integrated logging and dense microtremor array technology based on differences in physical properties and geophysical responses between weathered and oxidized zones and normal strata. Methods Initially, based on the analysis of the laws of variations in the physical properties …

Global Representative Metallogenic Models And Geophysical Exploration Methods Of Sylvite: Current Research Status And Prospects, Qu Ping, Yue Hangyu, Huang Xiaobing, Song Jiong

Coal Geology & Exploration

Background Sylvite serves as a strategic mineral resource that plays a significant role in ensuring food safety and sustainable agricultural development, with approximately 90% of global potash resources used for potassium fertilizer production. However, developing countries such as China have long faced the challenges of heavy dependence on potash imports and insufficient potash resource continuity. Such a supply and demand framework causes China to speed up research on potash metallogenic patterns and technical innovations in potash exploration. This will help overcome resource bottlenecks. Objective This study presented a systematic summary of global potash metallogenic models and investigated the approaches of …

Neutrosophic Decision Making Methodology For Sustainable Diabetic Diet: Balancing Health And Environment, Rayan Hussein

Neutrosophic Systems with Applications

Sustainable diabetic diet for balancing health and environment is a decision-making problem and contain uncertainty affect negatively in different decisions. So, this paper proposes a decision-making methodology with the neutrosophic set to solve uncertainty in this decision-making problem. We use the MOOSRA method to rank the alternatives. The criteria weights are computed using the average method. Case study with nine criteria and 16 alternatives are proposed for sustainable diabetic diet. The sensitivity analysis is conducted in this case study to show the stability of the ranks. Nine cases are proposed in this study. The results show the ranks of alternatives …

Neutrosophic Algebraic Structures For Precise Uncertainty Quantification In Outcome-Based Education Systems: A Rigorous Case Study Analysis, Mona Gharib, Imran Siddique, Miin Shen Yang

Neutrosophic Systems with Applications

Outcome-Based Education (OBE) emphasizes measurable learning results, yet the evaluation of professional talent training in physical education often involves uncertain, incomplete, or even contradictory indicators. Traditional assessment models are limited in capturing these indeterminacies. To address this challenge, we propose a novel neutrosophic algebraic framework that integrates neutrosophic probability, measure, and algebraic structures with OBE evaluation. This study introduces a neutrosophic evaluation framework that captures both determinate and indeterminate aspects of brand competitiveness. A case study on physical education professional training demonstrates how the proposed model captures hidden uncertainty and provides a more balanced assessment than classical methods. The results …

Neutrosophic Set Model For Effective Earthquake Disaster Risk Management: Results And Discussion, Emadaldeen Hassan Alomar, Abdullah Ali Salamai

Neutrosophic Systems with Applications

Secondary effects including landslides, tsunamis, and fires can cause significant damage and fatalities following an earthquake. Effective disaster risk management has been predicted to be built on regional fire-following earthquake (FFE) risk. Specifically, a target region’s building and geographical factors might impact the fire danger and spread. The percentage of fire-resistant building types as building characteristics and the distribution of building densities as regional characteristics were the primary factors used in this study to determine FFE risk. This study develops a decision-making methodology for risk management in the FFE. We use the single valued neutrosophic set (SVNS) to overcome uncertainty. …

Numerical Simulations Of The Overburden Stability In Underfilling Zones During Continuous Mining And Continuous Backfilling Of Coal Mines, Liu Lang, Luo Yixiao, Zhu Mengbo, He Jun, Qu Huisheng, Duan Huaijun, Wei Baoning, Liu Zhizhen

Coal Geology & Exploration

Objective and Method Coals serve as a predominant energy source in China. However, coal mining has resulted in increasingly pronounced ecological issues such as ground subsidence and solid waste accumulation. Although the continuous mining and continuous backfilling (CMCB) technology allows for efficient resource recovery and ecological protection through backfilling with coal-based solid waste, the issue of insufficient roof-contact backfilling (termed underfilling) poses a serious threat to the overburden stability during mining. Given the unclear mechanisms behind the influence of coupled multiple factors of underfilling zones in current research, this study constructed three-dimensional numerical models using the 3DEC discrete element software …

Response Characteristics Of Vegetation Ecology And Land Use Changes Tocoal Mining In Semi-Arid Regions, Du Zhen, Zhang Maosheng, Yun Shaoqi, Sun Pingping, Feng Li

Coal Geology & Exploration

Objective In semi-arid regions, intensive coal mining is prone to induce vegetation degradation and reshape the land use pattern. To identify the ecological impacts of coal mining and provide support for differential restoration, this study presents a quantitative comparison of changes in vegetation, soil moisture content, and land use types between mining-affected and non-mining areas.Methods Yulin City, Shaanxi Province was investigated in this study. Two parallel baseline frameworks were constructed: mining-affected and non-mining areas, which were compared under the sandy-fluvial terrace and loess hilly-gully landforms. The annual maximum normalized difference vegetation index (NDVI) derived from Landsat imagery was used …

Water Immersion-Induced Damage Mechanisms And Enhancement Via Nano-Modification For Artificial Dam Specimens With Vertical Interfaces, Li Yijia, Hao Xianjie, Chen Yuguang, Pang Tian, Yang Huaixiang, Li Hang, Ji Jinyi, Li Xinyu

Coal Geology & Exploration

Objective To accelerate ecological protection and high-quality development in the Yellow River basin, the concept of “conductivity, storage, and utilization” has been proposed to achieve the mine water storage and protection by transforming goafs into underground reservoirs and utilizing waterproof concrete dams. However, under the action of long-term water immersion and mining activity, the interfaces of composite concrete dam structures might undergo strength degradation, leading to hidden hazards. Methods By incorporating 0.5% and 1.0% nano-SiO₂, -Al₂O₃, and -TiO₂, this study prepared specimens with one vertical interface each that comprised double semi-cylinders through …

Building And Geological Interpretation Of A 3d Resistivity Model For The Reclamation Area Of The Jiaozhou Bay, Yu Peng, Zhao Mingyue, Yang Haiyan, Li Wenyu, Tian Jian, Yan Houzhen, Zhang Chao

Coal Geology & Exploration

Background With the advancement in smart city construction in China, the development and utilization of urban underground space have become a focal point. Geophysical methods, as a crucial technical means for underground geological structure exploration, face new challenges when applied to complex exploration environments in urban areas. Objectives and Methods To address issues in underground space exploration in the coastal area of Qingdao, this study investigated the reclamation area along the eastern coast of the Jiaozhou Bay. Using a detection technique that combined the transient electromagnetic method (TEM) using a conical source and high-density resistivity method, this study constructed a …

Evaluation Of Soil Quality Index For Sugar Beet Cultivation Under Neutrosophic Set Framework, Asiye Yilmaz Adkinson

Neutrosophic Systems with Applications

Evaluation of soil quality index for sugar beet cultivation is a decision-making problem. So, we use the decision-making methods to solve this problem. We use the ARAS method is a decision-making method to rank the alternatives. The average method is used to compute the criteria weights. Evaluation this problem contains uncertainty information. So, the neutrosophic set is used to solve this uncertainty information. This study uses ten criteria and 15 alternatives. The sensitivity analysis is conducted to show the stability of the ranks. We change the criteria weights by ten cases. Then we apply the steps of the proposed approach …

Sustainable Assessing Cross-Border Renewable Energy Alliances Using Neutrosophic Numbers With Long-Term Energy Transition Planning, Kamal Alieyan, Amr A. Abd El-Mageed

Neutrosophic Systems with Applications

This paper proposes a decision-making methodology for Sustainable assessing cross-border renewable energy alliances. We used two decision-making methods such as Entropy and MABAC methods. Entropy method is used to compute the criteria weights. The MABAC method is used to rank the alternatives. Two methods are used under the neutrosophic number to solve uncertainty in the decision making. Three stages of the proposed approach are conducted. In the first stage, we compute the criteria weights. In the second stage, we rank the alternatives. In the third stage, we conducted the sensitivity analysis to show the stability of the ranks. The results …

14th International Conference On Business, Technology And Innovation 2025, University For Business And Technology - Ubt

UBT International Conference

Welcome to IC – UBT 2025

UBT Annual International Conference is the 14th international interdisciplinary peer reviewed conference which publishes works of the scientists as well as practitioners in the area where UBT is active in Education, Research and Development. The UBT aims to implement an integrated strategy to establish itself as an internationally competitive, research-intensive university, committed to the transfer of knowledge and the provision of a world-class education to the most talented students from all background. The main perspective of the conference is to connect the scientists and practitioners from different disciplines in the same place and make …

Pre-Calibration Of Δ18O For Paleoclimatic Interpretations Using Stalagmites In Cueva Ensueño, Puerto Rico, Gabriel Enrique López Borobia, Ny Riavo G. Voarintsoa, Ricardo Sánchez-Murillo, Pablo Antonio Llerandi Román

International Journal of Speleology

Stalagmites are invaluable archivers of past climate conditions, as their oxygen isotopic composition (δ¹⁸O_c) closely mirrors the isotopic signature of the drip water (δ¹⁸O_w) from which they precipitate. This isotopic relationship is governed by the fractionation factor (1000ln¹⁸α), which is temperature dependent. In this research, we studied 1000ln¹⁸α within Cueva Ensueño, a cave situated in Puerto Rico’s northern karst region, as a step toward calibrating δ¹⁸O_c for paleoclimate interpretations using stalagmites. We collected drip waters, measured their temperature in situ, and sampled carbonates from ten selected stations within the cave. Sampling was conducted in December …

Interactions And Community Structure Of Fungi And Prokaryotes In Salt And Brackish Marsh Ecosystems, Madeleine A. Thompso, Xuefeng Peng

Faculty Publications

Microbial communities play a fundamental role in biogeochemical cycling within salt and brackish marsh ecosystems, yet fungal-prokaryotic interactions in these environments remain poorly understood. This study employed metabarcoding of the 16S and 28S rRNA genes to investigate prokaryotic and fungal communities across four locations in sediments and surface waters of the North Inlet salt marsh and Winyah Bay brackish marsh (South Carolina, USA) over four time points from 2020 to 2021. Co-occurrence network analyses were used to identify potential microbial interactions and their ecological implications. Distinct fungal and prokaryotic communities were observed between the two marsh types. From the 16S …

Predicting Species Assemblages At Wildlife Crossing Structures Using Multivariate Regression Of Principal Coordinates, Thomas J. Yamashita, Daniel G. Scognamillo, Kevin W. Ryer, Richard Kline, Michael E. Tewes, John H. Young Jr., Jason V. Lombardi

School of Earth, Environmental, & Marine Sciences Faculty Publications

Wildlife populations are in decline due to human threats, including highways. Strategies for reducing road impacts on wildlife include wildlife fencing which keep animals off roads and wildlife crossing structures (WCSs) which provide safe passage across roads. Wildlife crossing structures are diverse and transportation managers are often interested in identifying which WCS designs are effective for target species so a model that predicts target species usage of WCSs is likely to be beneficial to managers and biologists. Wildlife crossing structures are typically built for select species but are utilized by other species, so it may be beneficial to examine WCS …

Re: Letter Response To Butte Priority Soils Operable Unit (Bpsou) Continued Use Of The Approved Surface Water Quality Assurance Project Plan Silver Bow Creek Butte Area Npl Site (Dated September 15, 2025), Emma Rott

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Mixed Quantum/Classical Theory For Rotational Excitation Of Hdo In Collisions With H2: Symmetry Breaking Effects And Time-Dependent Dynamics, Carolin Joy, Igor Gaidai, Alexandre Faure, Dmitri Babikov

Chemistry Faculty Research and Publications

The application of the mixed quantum/classical theory of inelastic scattering (MQCT) to the rotational excitation of the isotopically substituted water molecule, HDO, in collisions with hydrogen molecules is presented. Modification of the potential energy surface of thewater + hydrogen system, due to isotopic substitution, is described, and the effect of symmetry breaking is explored. It is found that the additional terms of potential expansion are significant and, therefore, are expected to play an important role during the collision process. The modeling of HDO + H₂ collision is carried out using both the MQCT method and the full-quantum CC method …

Revised Draft Final 2022 Insufficiently Reclaimed Sites Sampling: Bres No. 32 – Corra 2 Dump Site Evaluation Summary Report, Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Re: Letter Response To Butte Priority Soils Operable Unit (Bpsou) Continued Use Of The Approved Groundwater Quality Assurance Project Plan Silver Bow Creek Butte Area Npl Site (Dated September 15, 2025), Emma Rott

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Re: Butte Priority Soils Operable Unit Final Leak Infiltration Evaluation, Josh Bryson

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Revised Draft Final 2022 Insufficiently Reclaimed Sites Sampling: Bres No. 30 – Atlantic-1 Site Evaluation Summary Report, Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Revised Draft Final Butte Priority Soils Operable Unit (Bpsou) Unreclaimed Sites: Ur-08 (Anderson Shaft) Remedial Action Work Plan (Rawp), Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.