Physical Sciences and Mathematics Commons^™

Joint Inversion For Heat Transfer Parameters Of Porous Media With Geothermal-Seepage Coupling Based On A Physics-Informed Neural Network, Zhang Xiao, Yang Duoxing, Cong Lin, Cheng Yimei, Zhang Lianzhong

Coal Geology & Exploration

Background The thermal diffusivity and vertical seepage velocity of porous media are critical to characterizing the mechanisms underlying subsurface heat transfer. These two parameters are typically determined through inversion using temperature data since they are difficult to measure directly. Fiber-optic distributed temperature sensing (FO-DTS) can yield high-resolution, continuous temperature profiles, providing data for parameter identification. However, conventional numerical inversion suffers from limitations such as mesh dependency and sensitivity to initial values when used to process continuous monitoring data. Methods This study proposed a joint geothermal parameter inversion method that integrates FO-DTS data with a physics-informed neural network (PINN). Specifically, the …

Joint Inversion Of Borehole-Surface Direct-Current Resistivity Data, Xu Kaijun, Jin Heran, Cao Danping, Mou Bin, Hu Zuzhi

Coal Geology & Exploration

Objective The conventional inversion of surface direct-current (DC) resistivity data faces challenges such as limited exploration accuracy and depth. This study aims to enhance the accuracy and reliability of exploration in complex engineering and geological settings through the joint inversion of borehole-surface DC resistivity data. Methods First, different geoelectric models were constructed through three-dimensional (3D) forward modeling of full-space DC resistivity. Then, the potential response characteristics under surface and borehole observation methods were systematically analyzed to determine the differences in detection sensitivity between surface and borehole observations. Accordingly, a joint 3D inversion technique for borehole-surface DC resistivity data was developed …

Oil-Based Mud Electrical Imaging Logging Responses Of Carbonate Strata, Wu Yuyu, Lai Qiang, Pan Feng, Zhao Zuo’An, Wang Xiaoxing, Wang Yue, Cheng Lu, Wang Zeyu, Yin Rong

Coal Geology & Exploration

Objectives This study aims to characterize the oil-based mud (OBM) electrical imaging logging responses of carbonate strata, highlighting the response characteristics of dissolution vugs, fractures, stratigraphical structures, and special minerals. Methods Tests were conducted on logging data acquisition of a drilled well within the Dengying Formation in the Sichuan Basin before and after OBM was replaced with water-based mud (WBM). Based on the fine-scale core-to-log (CTL) calibration, this study compared the WBM and OBM electrical imaging logging responses of different geological and pore structures. Furthermore, the characteristics of OBM electrical imaging logging responses were further discussed from the measurement principles …

A Cutting Trajectory Planning Technology Driven By Coal Seam Data In A Comprehensive Mining Face, Guo Yifeng, Xue Xusheng, Ma Hongwei, Zhang Guangming, Su Hao, Qi Ailing, Nie Zhen, Ma Kexiang, Wu Xuefei

Coal Geology & Exploration

Objective Currently, the insufficient full-element digitization and the prevalence of “data silos” in fully mechanized mining faces (FMMF) result in poor cutting precision and operational instability of shearers under complex undulating and abrupt geological conditions. These factors pose significant challenges to high-precision proactive trajectory planning. Methods Guided by the academic philosophy that “mining is data acquisition”, this paper proposes a coal seam data-driven cutting trajectory planning method for FMMFs. It elaborates on three core technologies: high-precision digital coal seam modeling, generative model updating and digital twin construction, and data-driven trajectory planning.To address low modeling precision, an intelligent interpolation-based digital coal …

Table Of Contents, The Editors

Coal Geology & Exploration

No abstract provided.

Machine Learning-Based Prediction And Experimental Validation Of The Pyrolysis Product Distribution In Tar-Rich Coals, Dong Shuai, Li Hongqiang, Wu Zhiqiang, Yu Zunyi, Lyu Zitao, Guo Wei, Yang Panxi, Fu Keming, Hao Xuanzhi, Liu Gen, Yang Bolun

Coal Geology & Exploration

Background Tar-rich coals serve as an important coal-based oil and gas resource in China, while their pyrolysis product distribution is governed by the coupling effects of coal properties and reaction conditions. Therefore, rapidly identifying the pyrolysis product distribution patterns holds great significance for the resource evaluation and experimental design of tar-rich coals.Methods Existing studies on tar-rich coals suffer from the insufficient integration of exclusive data and limited synergistic prediction capacities for multiple products. To address these issues, this study constructed a dedicated dataset involving proximate analysis, ultimate analysis, elemental molar ratios, maceral composition, and pyrolysis conditions by systematically collecting …

Evaluation And Research Progress Of Co2 Sequestration In Deep Coal Seams, Xiong Yucan, Xu Shi’Ang, Zhang Pingsong, Lu Haifeng, Jia Yunzhong, Ge Binbin, Li Baiqiang, Liu Chang, Lei Jian, Fu Wenyu

Coal Geology & Exploration

Background With increasing pressure for global carbon emission reduction, geologic CO₂ sequestration has emerged as a critical technical approach to achieving the goals of peak carbon dioxide emissions and carbon neutrality. Owing to their high CO₂ adsorption capacity and favorable sealing conditions, deep coal seams are considered one of the most promising media for CO₂ sequestration, following saline aquifers and depleted hydrocarbon reservoirs. Therefore, the exploitation and utilization of deep coal seams hold significant strategic importance for the green, low-carbon transformation of the coal industry. Methods Based on literature analysis and a review of outcomes from cutting-edge …

Mechanisms Behind The Impacts Of Co2 Concentration On Microbial Methanogenesis In Coal Seams, Wang Junyu, Liu Bingjun, Jiang Xiangqing, Chen Ruifeng, Xue Sheng, Zhou Wanlong, Yang Yundu

Coal Geology & Exploration

Background Coal seams exhibit the extensive distribution of a variety of indigenous functional microorganisms. Among these, some archaea enable methane metabolism using CO₂ as a substrate, providing the potential for the biological CO₂ storage and utilization in coal seams. However, conventional studies focus primarily on the degradation characteristics of coal matrix, leading to a lack of a systematic understanding of the mechanisms governing the adjustment of the methanation process in CO₂-bearing environments. Methods This study investigated the bituminous coals with a high volatile content in the Huainan mining area. Using laboratory-scale experiments on methanogenesis through anaerobic …

Dynamic Prediction On Goaf Surface Subsidence For The Last Two Periods Based On The Erf Time Function, Ren Lianwei, Li Shihui, Wang Wenchang, Li Zhenhua, Chen Shaojie, Dun Zhilin

Coal Geology & Exploration

Background The surface subsidence induced by coal seam mining represents a continuous dynamic evolution process. Constructing a full-time perdition model for surface subsidence in goafs holds significant theoretical and practical values for the rational utilization of land resources, the safety guarantee of engineering construction, and the transformation and development of resource-based cities. Methods To accurately predict the surface subsidence in goafs during its decline and residual periods, this study proposed a prediction model based on the error function (Erf). First, the evolution characteristics of Erf were analyzed, verifying that the subsidence, as well as its velocity and acceleration, predicted using …

Performance Optimization Of Superfine Cement Through Composite Modification Using Coal-Based Solid Waste And Modifiers, Kang Zhipeng, Luo Yong, Xiao Diancai, Ren Shuai, Cai Zhiliang, Gao Xiang, Zhang Kunzhe

Coal Geology & Exploration

Objective Superfine cement-based grouting materials generally suffer from limitations including high bleeding rates, unfavourable rheological properties, poor stability, and strength retrogression. These issues can be mitigated by incorporating modifiers, which allows for the reutilization of coal-based solid waste while enhancing the performance of composite, superfine cement-based grouting materials. Methods Superfine cement-based grouting materials with different mixing ratios were prepared by using superfine cement as the basic material, fly ash (FA) and mineral fines (MFs) as primary admixtures, and modified bentonite, methyl cellulose ether (MCE), U-type expansive agent (UEA), and magnesium oxide (MgO) as modifiers. These grouting materials and pure superfine …

Dynamic Response Characteristics And Failure Mechanism Of Coal-Rock Combination Under Different Immersion Conditions, Zhang Xiangyang, Tong Zhipeng, Duan Yungang, Yang Weikun, Chen Jianben, Xu Linfeng

Coal Geology & Exploration

Background In practical engineering, the waterproof coal pillar usually suffers from different degrees of dynamic load from the overlying strata, and its internal water distribution is non-uniform. Although the traditional “water content” index can reflect the overall water content, it is difficult to describe the non-uniform characteristics of the soaking space. Therefore, it is of great significance to clarify the dynamic failure mechanism of coal and rock mass under different immersion conditions for stability zoning control. Methods On this basis, the coal–rock combined bodies under three different forms of immersion, namely: complete immersion, unilateral immersion, and non-immersion were prepared. These …

Mine Data Fusion Technology Based On Multi-Feature Joint Decision Making, Han Shanshan, Zhang Jifeng, Fan Tao, Liu Qiang, Song Xiaojiao, Qi Zhipeng, Zheng Hangzhou

Coal Geology & Exploration

Background In the field of geological exploration of coal mines, methods such as in-seam seismic exploration, the transient electromagnetic method, and audio-frequency electrical penetration offer unique technical advantages. However, each of these methods can only reflect a single physical property of a medium, suffering from limitations including the one-sidedness of information and the multiple solutions of interpretations, thus failing to adapt to the new situations of current coal mine exploration. Multi-source data fusion promotes a technological development by leaps from one-sided detection to comprehensive analysis through mechanisms of information complementation, feature enhancement, and field-source integration. Therefore, this technology can enhance …

Mechanisms Underlying Lateral Force Applied To A Pdc Cutter On A Pdc Drill Bit During Rotary Rock Breaking, Wei Jiusen, Han Xin, Liu Wei, Gao Deli

Coal Geology & Exploration

Objective To improve the rock-breaking efficiency and durability of drill bits in the theoretical research on the optimal design of drill bits, the key is to systematically reveal both the rock-breaking mechanisms of polycrystalline diamond compact (PDC) cutters and the characteristics of forces applied to them. Methods Existing studies on rock breaking using a single PDC cutter generally adopt a linear or approximately linear cutting mode while neglecting the impacts of the radius of gyration. To address this issue, this study conducted experiments on cylindrical granite samples using a laboratory experimental setting for single-cutter rock breaking. With cutting depth and …

Targeting Chemical Pollutants Through Assimilation Of Hydrophobic Deep Eutectic Solvents With Metal-Organic Frameworks, Carbon Nanotubes, And Activated Carbon, Tanner William Baughman

ONU Student Research Colloquium

Water contamination by heavy metals has a harmful human threat to the environment and to human health. This is derived from their bioaccumulation and toxicity characteristics. The study directly looks at the assimilated of lignin-derived hydrophobic deep eutectic solvents (HDES) with 3 different class of materials: Metal-Organic Frameworks (MOFs), Carbon Nanotubes (CNTs), and Activated Carbon (AC). Four different HDES mixtures were assimilated into these porous materials through impregnation. Composites were evaluated by characteristic peaks through Attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR). The morphology of the samples was assessed as well through scanning electron microscopy (SEM). The colloidal stability …

Large-Scale Production Of Polyethylene Furanoate From Algae- Derived Feedstocks, Anjolaoluwa Buraima, Jasmine Gordon, Christian Jung, Brianna Oropeza

Chemistry and Chemical Engineering Student Publications

This work presents a process to convert microalgal feedstocks (Chlorella vulgaris) into Polyethylene Furanoate (PEF), a biobased alternative to Polyethylene Terephthalate (PET) with improved barrier properties, proving a sustainable pathway for bioplastic production.

Halo: High Autonomous Low-Swap Operations, Sloan Hatter, Blake Gisclair

Mathematics and System Engineering Student Publications

Orbital object detection is a vital aspect of space operations, particularly for identifying satellite components. Convolutional Neural Networks (CNNs) are typically used for such operations by running onboard models directly on satellite systems. However, a new neural network architecture, known as Vision Transformers (ViTs), have shown greater effectiveness due to their ability to capture global context. One main issue of deploying systems with such capabilities is resource allocation. One solution is to run models on a Low-SWaP system; however, this results in inefficient performance. To enable efficient ViT operations on Low-SWaP systems, the model must be scaled down through quantization, …

Stochastic Network Resilience Under Random Failures, Blake Gisclair

Mathematics and System Engineering Student Publications

This project investigates threshold-crossing probabilities in stochastic networks. Using probabilistic modeling and transform-based analytical methods, the work derives expressions that characterize when cumulative losses exceed prescribed limits with the goal of providing insight into the relationship between local random behavior and global network risk.

Determining Material Transport Method For Moon Colony Using Differential Equations, Scott Meeson, Anthonie Page, Matas Vaitkevicius

Mathematics and System Engineering Student Publications

NASA Artemis Missions: NASA’s Artemis program marks a fundamental shift from short-term lunar exploration to sustained, permanent colonization.

The Invisible Shield: Why Our Stomach Doesn’T Digest Itself, Kevon Findley

Mathematics and System Engineering Student Publications

The stomach contains highly acidic gastric fluid with a very low pH.  A thin mucus lining protects the stomach from self-digestion and keeps nearby epithelial cells near a pH 7.  A weakened mucus layer is associated with conditions such as Gastritis and Peptic Ulcer Disease.

How can the protective mucus barrier be maintained and be of stable thickness?

Visualization For Formal Languages, Chris Pinto-Font, Andrew Bastien, Vincent Borrelli, Keegan Mcnear

Electrical Engineering and Computer Science Student Publications

The primary goal is student comprehension of complex DFA concepts.

This project is important for students and professors because being able to visualize Deterministic Finite Automota (DFA) and how it is created and expressed can lead to better understanding of how parsing and computation works.

Student Code Online Review And Evaluation 2.0, Dorothy Ammons, Shamik Bera, Patrick Kelly, Rakan Alsharif

Electrical Engineering and Computer Science Student Publications

The goal of this second rendition to S.C.O.R.E is to enhance the application by adding features such as:

• Cheat detections
• Roster imports
• Grade exports
• Custom rubrics

Java Oo Visualizer, Darian Dean, Ashley Mckim, Simon Gardling, Josh Kalinsky

Electrical Engineering and Computer Science Student Publications

Current Challenge: Understanding the execution of an object-oriented program is challenging for students beginning their undergraduate CS degree

Common Issue: Students learn syntax but fail to see the underlying behavior of object creation, reference assignment, and method calls

Unified Solution: bridge the gap between abstract concepts and concrete understanding by animating the process of object instantiation, reference assignment, and results of method

Fit Ar Navigation App (Fitarna), Vincenzo Barager, Dathan Dixon, Jacob Hall-Burns, Ethan Wadley

Electrical Engineering and Computer Science Student Publications

Navigation Complexity: Large-scale academic facilities like the Evans Library present significant wayfinding challenges for new students and visitors.

GPS Limitations: Standard satellite-based navigation fails indoors due to signal attenuation and lack of floor-level granularity.

The Solution: FITARNA leverages Augmented Reality to provide intuitive, real-time visual guidance, bridging the gap between digital maps and the physical environment.

Panther Shuttle App, Joey Hilte, Chase Monigle, Tony Arrington, Jonathan Suo

Electrical Engineering and Computer Science Student Publications

Florida Tech students rely on the campus shuttle system to travel between dorms, classrooms, and nearby housing areas. However, existing tools do not provide reliable real-time tracking or notifications about delays.

The Panther Shuttle App provides students with live shuttle locations, schedules, and alerts to improve campus transportation and reduce wait times.

Wallee. Personal Finance App, Emma Bahr, Matteo Caruso, Joshua Cajuste, Kyle Gibson

Electrical Engineering and Computer Science Student Publications

Traditional finance apps assume fixed monthly income. Fail users with variable income:

a. Students

b.Freelancers

c. Gig workers

Require constant manual updates. Provide low adaptability to real-life finances

Brainbench - Llm Evaluation, Daniella Seum, Orion Powers

Electrical Engineering and Computer Science Student Publications

As large language models become more widely used, there is a growing need for reliable and consistent methods to evaluate their performance. Existing benchmarks often lack transparency, consistency across runs, or the ability to handle varied answer formats. BrainBench was developed to address these gaps by providing an automated, reproducible evaluation framework that enables fair comparison of models and deeper insight into their strengths and limitations.

Dynamic-Query Robustness Of Ann Indexes Under Time-Indexed Drift, Stellamaris Nakacwa, Majid Shaalan

Harrisburg University Other Works

Approximate nearest-neighbor search is a central retrieval primitive in dense question-answering and retrieval-augmented generation systems. Existing ANN evaluation protocols typically measure recall, latency, throughput, and search-effort sensitivity under a fixed-query assumption: a query vector is submitted to an index, approximate neighbors are retrieved, and the result is compared with exact nearest-neighbour ground truth. This assumption is appropriate for conventional vector-search benchmarking, but it is less complete for multi-step, distributed, and agent-controlled retrieval pipelines in which the retrieval-facing query may be refined, recomputed, or displaced across execution steps. This paper introduces a time-driven dynamic query evaluation framework for ANN search. The …

Repurposing An Old Pc Into A Self-Hosted Cloud And Media Server, Riley Biggins

Honors Theses

Commercial cloud platforms rely heavily on subscription models, so everyday users fall into a "cloud trap" summarized by perpetual fees, forfeited privacy, and a lack of true asset ownership. At the same time, functioning consumer electronics get discarded as e-waste when they fail to meet the hardware requirements of modern operating systems. This project presents a sustainable and cost-effective alternative to both issues by repurposing a 2017 HP Pavilion laptop into a personal cloud and media server.

Despite severe hardware constraints, my software architecture rivals the utility of paid services. By replacing Windows with a headless installation of Ubuntu Server, …

Reproductive Season And Fecundity Reassessment Of Gopher Tortoises (Gopherus Polyphemus) In Southeastern Florida, Riley Waters

Electronic Theses and Dissertations

The gopher tortoise (Gopherus polyphemus) breeding season occurs throughout spring and early summer across its distributional range, but recent research shows that in southeastern Florida, mating also occurs in the fall and winter months. This project evaluates the gopher tortoise’s extended reproductive season in southeastern Florida and female fecundity. The study, conducted at two locations in South Florida: Jupiter, FL and Boca Raton, FL, used field ultrasound equipment and radiographs to identify gravid females and determine clutch size. The data suggest a much earlier start to egg development and nesting, and the possibility of an extended egg development …

An Analysis Of Surface-Level Macro And Microplastics Along Western Central Leyte, Philippines, Graham B. Morrison-Plumley

Electronic Theses and Dissertations

With the pervasive use of plastics worldwide, their environmental effects can reach even the most remote ecosystems. This study examines both macro and microplastic pollution in the Greater Baybay region in western Leyte, Philippines. Samples from 10 separate sites within Baybay and its adjacent communities represent the unique environmental and geologic diversity of the central Visayan region of the Philippines. At each of the 10 sampling sites, 3 excavations were conducted, yielding 30 samples. Macroplastics were collected in the field, immediately around microplastic digs. Microplastic samples were analyzed in Florida Atlantic University’s Environmental Change Lab. It was determined that spatial …