Engineering Commons^™

Design And Application Of Anti-Drop Drill Pipe With Fracture Self-Locking Function, Dong Changle

Coal Geology & Exploration

Drill pipe will inevitably break and drop during its long-term service, which not only seriously affects the drilling efficiency and the rate of hole formation, but also brings great economic losses to coal mines. In terms of drill pipe drop caused by the random fracture during drilling, the shortcomings of fishing tap were pointed out. By analyzing the fracture characteristics of drill pipe, it is concluded that the key to solve the problem of drill pipe drop is to develop the axial connection technology after the fracture of pin joint. Herein, an active anti-drop technology with fracture self-locking function was …

Board 417: Understanding Capstone Design Activity Engagement In Mechanical Engineering, Elliot Clement, Sarah Oman, James L. Huff Ph.D., Shane A. Brown P.E.

Faculty Research and Publications

This paper summarizes the initial findings of our ongoing work studying design activity engagement for engineering students and professionals. With this introductory study, we aim to gain a better understanding of how engineering students engage in capstone design activities, and their motivations for doing so. This paper presents the initial findings from semi-structured interviews with three engineering students and will constitute the base for further research focusing on student and professional engagement in design activity across different engineering fields.

Board 270: Engineering Faculty Members’ Experience Of Professional Shame: Summary Of Insights From Year Two, James L. Huff Ph.D., Amy L. Brooks, Halle Miller, Grant R. Countess, Kanembe Shanachilubwa

Faculty Research and Publications

In this paper, we present an overview of an NSF CAREER project, in which we seek to advance academic well-being by understanding how engineering faculty experience and reproduce experiences of professional shame. We present an overview of our data collection of non-standardized interviews with engineering faculty (n = 21) and how we are using interpretative phenomenological analysis to examine select individual cases (n = 12). We report our preliminary insights that 1) participants experienced complex and manifold socially constructed expectations that form the basis of their professional shame experiences and 2) participants’ experiences of professional shame varied according to how …

Evaluating The Quality Of Interviews With A Process-Based, Self-Reflective Tool, James L. Huff Ph.D., Amy L. Brooks

Faculty Research and Publications

This methods paper presents the interview quality reflection tool (IQRT) to evaluate the quality of qualitative research interviews. Qualitative researchers commonly use semi-structured interviews that rely on the interviewers’ ability to improvise in real time based upon the needs of the study. Given that interviewing involves numerous tacit skills that cannot be delineated by a simple written protocol, it is necessary that researchers develop interview competencies through practice and reflection. While prior literature on interviewing has often focused on developing interview protocols, we know little about how interviewers themselves may be trained to gather high-quality data. In this paper, we …

Experiments For A Computing Class, Christi L. Patton Luks

Chemical and Biochemical Engineering Faculty Research & Creative Works

The Course Description for Numerical Computing for Chemical Engineers Course at Missouri University of Science and Technology States that Students Will "Add to their Programming Skills by Exploring Numerical Computational Techniques for … Chemical Engineering Processes." the Challenge is that the Course is Taught Early in the Curriculum Before the Students Know What Those Chemical Engineering Processes Are. the Course Has Been Structured as a Flipped Class with Class Time Devoted to Solving Problems with the Numerical Tools. to Provide Relevance for the Material, an Experimental Component Has Been Added to the Course. in the Laboratory Sessions, the Students Conduct …

Experimental Study On Co2 Storage In Coal Measure Gas Hydrates Reservoirs In Muli Coalfield, Lyu Wenyu, Lyu Chao, Zhang Wenzhong, Sun Qiang, Jia Hailiang, Tang Li'an

Coal Geology & Exploration

Carbon Dioxide Geological Storage (CGS) is a promising technology for reducing the greenhouse gas emissions and mitigating the climate change. The hydrate-based CO₂ storage in the abandoned gas hydrate reservoir can play a key role in CGS. In this paper, artificial cores of hydrate reservoir were prepared based on the basic physical properties of coal measure gas hydrate reservoir in Muli Coalfield, and the variations in density, porosity and permeability of the core with particle diameter of quartz sand were analyzed. The variations in CO₂ hydrate saturation in core were analyzed based on the low-field Nuclear Magnetic Resonance …

Numerical Simulations Of The Rapid Interception Mechanisms By The Borehole-Controlled Grouting With Grout-Conserving Bags Under Flowing Water, Yang Zhibin

Coal Geology & Exploration

Grout-conserving bags. To characterize the local and overall development processes of the rapid interception more subtly and vividly, this study built a CFD-DEM fluid-solid coupling mathematical model of the roadway inlet under the given water head boundary according to the principle of a constant velocity. Then, given constant velocities of water inrush volumes of 2000 m³/h and 20000 m³/h, this study numerically simulated the construction process of water-blocking bodies by pouring and stacking aggregates with a grain size of 22 mm under the operating conditions with or without grout-conserving bags. The results show that: (1) Under …

Deep Seismic Reflection Profiling Technology In Land Areas: A Review And Prospects, Yue Hangyu, Wang Xiaojiang, Wang Lei, Wang Kai, Zhang Baowei

Coal Geology & Exploration

Deep seismic reflection profiling has been internationally proven to be a leading technology for deep earth exploration. With longer arrangement and greater energy than those used in oil seismic exploration, this technology can detect the fine-scaled structures and tectonic features from the earth surface to the upper mantle. Therefore, it is widely applied to the detection of continental and marine crust and upper mantle, with fruitful achievements having been made in revealing deep earth dynamic processes, expounding on the geotectonic evolution, determining the basin-mountain coupling, inferring the metallogenic and reservoir formation conditions, and analyzing earthquake disasters. This paper systematically reviews …

Balance Analysis And Counterweight Optimization Design For Detection With Orientated Borehole Ground Penetrating Radar Antenna, Li Taotao, Xu Xianlei, Xu Hailong, Ouyang Bing, Wang Pengjie

Coal Geology & Exploration

Orientated borehole ground penetrating radar (OBGPR) can effectively solve the problem of orientated and detailed detection of geological conditions around the mine or oil well boreholes and engineering probe hole, etc. In view of difficult state control and unsatisfactory detection effect during antenna sagging due to the changeable medium in deep hole and the unreasonable counterweight of OBGPR antenna, the balance analysis and counterweight optimization design of orientated borehole ground penetrating radar antenna during detection was implemented in this paper. Firstly, analysis was conducted on the force of OBGPR antenna under the balance condition during the deep hole and well …

Direct Current Resistivity Method For The Advance Prediction Of Water Hazards In Coal Mines Based On An Artificial Neural Network, Li Yuteng, Cheng Jianyuan, Lu Jingjin, Dai Fengqiang, Wu Zhengfei, Fang Zhe, Zhao Jiajia

Coal Geology & Exploration

The mine Direct Current (DC) resistivity method has the characteristics of high construction efficiency and low cost, which is widely used in the advanced detection of water hazards in coal mine heading face.With the continuous deepening of applications, higher requirements have been put forward for the advanced detection signal processing method of mine DC resistivity method. Based on the response information database obtained by finite element method and data reconstruction, the Levenberg-Marquardt (L-M) artificial neural network method is used to realize the advanced prediction of mine DC resistivity method. First, this study established an advanced prediction model of the DC …

A Bridged Cybersecurity Curriculum With Embedded Stackable Credentials, Fitratullah Khan, Ala Qubbaj, Laura Saenz, Liyu Zhang

Informatics and Engineering Systems Faculty Publications

Supported by a federal grant, The University of Texas Rio Grande Valley (UTRGV) streamlined the Bachelor of Science in Cyber Security (BSCS) and Master of Science in Informatics (MSIN) whereby each degree is broken down into embedded stackable credentials, with a fast-track 4+1 option for students to complete both degrees in 5 years. This paper provides a blueprint of the bridged undergraduate and graduate curriculum integrated to provide embedded stackable credentials with fast-track 4+1 option bridging the two degrees. Most of the major-core of BSCS is divided into three embedded stackable credentials, namely, Cyber Security Basics Certificate, Cyber Security Systems …

An Experimental Study On Factors Controlling The Proppant Transport In Hydraulic Fractures Of Coal Reservoirs, Su Xianbo, Fan Jian, Wang Ran, Wang Lufei, Zhao Fengzhen, Wang Qian

Coal Geology & Exploration

Effectively propping open hydraulic fractures in coal reservoirs plays an important role in ensuring the efficient production of coalbed methane (CBM). This study investigated the effects of fracture morphology and the volume, injection rate, and properties of fracturing fluids on proppant transport in fractures through visualized experiments. The results are as follows: (1) Proppants showed a relatively homogeneous distribution in simple fractures with a constant aperture. In contrast, they form room-and-pillar props composed of proppant pillars and proppant-free rooms in local simple fractures with varying apertures and reticular fractures due to the effects of the varying flow rates of fracturing …

Soil Moisture Migration Mechanism And Its Ecological Effect In Cold And Arid Open-Pit Coal Mining Area, Wang Qiangmin, Zhao Chunhu, Wang Hao, Sun Jie, Yang Jian, Wang Wenke

Coal Geology & Exploration

In order to explore the soil moisture migration mechanism and its ecological effect in the cold and arid open-pit coal mining area, a long-term in-situ test was carried out to observe the soil moisture, taking the open-pit coal mine in eastern Mongolia grassland area as the study area. The results show that: The shallow soil moisture content is mainly affected by rainfall in non-freezing period, while the soil moisture content is significantly affected by soil temperature in freezing period. Besides, the saturated permeability coefficient of soil in depth less than 50 cm is greater than 150 cm/d, but that of …

Board 399: The Freshman Year Innovator Experience (Fyie): Bridging The Urm Gap In Stem, Noe Vargas Hernandez, Arturo A. Fuentes, Karen Lozano, Javier A. Ortega, Eleazar Marquez

Mechanical Engineering Faculty Publications

The project focuses on increasing “effective STEM education and broadening participation” in underrepresented minority STEM students at the University of Texas Rio Grande Valley (UTRGV) to successfully face academic and professional challenges, recently exacerbated by the COVID-19 pandemic. The Freshman Year Innovator Experience proposes the development of self-transformation skills in freshman mechanical engineering students to successfully face academic and professional challenges exacerbated by the COVID-19 pandemic while working on two parallel projects of technical design innovation and academic career pathways. The authors will present the work in progress and preliminary results from a pilot implementation of the Freshman Year Innovator …

Analysis Of Student Motivation In An Introductory Engineering Technology Gateway Course, David Moreno-Rueda, Kevin Michael Simonson, Jeffrey J. Richardson, Eddy Efendy, Rustin Webster, Brittany Newell

School of Engineering Technology Faculty Publications

Student motivation has a large impact on information retention levels and overall student learning. Previous studies have demonstrated the higher a student’s intrinsic motivation, the more successful the student will be in the learning process. At the post-secondary level, student interest is often tied to expected career pathways and outcomes. This work explores student motivation in an engineering technology introductory foundations course. The course is required for all students in the engineering technology department and is recommended for students exploring the engineering technology discipline, creating a unique culture within the classroom. The course includes two lectures, one recitation, a hands-on …

Design, Development And Implementation Of A Comprehensive Evaluation System For Multi-Source Information On Water Inrush From Coal Seam Floor, Li Bo, Luo Yulan, Fan Juan, Guo Xiaoming, Li Menghua

Coal Geology & Exploration

The evaluation technology of multi-source information fusion is an important method for the prediction of water inrush from the coal seam floor. However, this method has the deficiencies, such as high professional technical requirements, complicated and tedious evaluation process, and insufficient intelligence during its application. In this study, the design principle, design idea, development mode, and development method of a multi-source information comprehensive evaluation system for water inrush from coal seam bottom were systematically described according to the characteristics of the technical process of water inrush risk evaluation. The key functions of system were built, including the universal evaluation index …

Mine Water Inrush Prediction Method Based On Vmd-Dbn Model, Liu Hui, Liu Guiqin, Ning Dianyan, Fan Juan, Chen Weiming

Coal Geology & Exploration

In the process of coal mining, the loss of people and property caused by mine water inrush is extremely serious. To prevent the occurrence of water inrush accidents and grasp the law of change of water inrush, the water inrush prediction and forecasting, especially the accurate estimation of mine water inrush, is very important, which is also an important task in the prevention and control of mine water damage. To increase the prediction accuracy of mine water inrush, an efficient time series prediction model combining Variational Mode Decomposition (VMD) and Deep Belief Network (DBN) was proposed for the series of …

Numerical Simulation Of Grout Diffusion Under Coal Seam Floor And Analysis Of Influencing Factors, Guo Yan, Gui Herong, Wei Jiuchuan, Hong Huang, Guo Xiangdong, Cui Yali, Ye Shuang, Li Jun

Coal Geology & Exploration

Ground high-pressure advanced regional grouting has become the preferred engineering method for the prevention and control of water disasters in coal mines. The diffusion mechanism of grout has received widespread attention, and the design of branch hole spacing mostly relies on the on-site experience, which has a certain degree of blindness and restricts the effectiveness and efficiency of the project. Based on the actual working conditions of grouting site in Hengyuan Coal Mine, Huaibei Coalfield, the numerical simulation was performed with the COMSOL Multiphysics software for the high-pressure grout diffusion in the floor area of the ground directional drilling coal …

Design And Application Of The 3d Model Interfaces Of The Integrated Intelligent Mine Control Platform, Zhang Jing

Coal Geology & Exploration

The production safety control platform for mines is used to present information on the centralized scheduling, real-time monitoring, risk prevention and control, operation and maintenance detection, and decision analysis of various equipment and automated, intelligent production systems for tunneling, mining, machinery, transportation, and ventilation during coal mine production. Accordingly, the interface design of the integrated intelligent mine control platform is particularly important for user experience. However, the current integrated automation systems for mines adopt monochrome configuration engineering plans and display a single interface effect of display and operation. By introducing the industrial design concepts and employing the 3D model interface …

Influence Of Water Yield Property Of Yan’An Formation Aquifer On Water Yield Of Mines In Southern Shenmu-Fugu Mining Area, Li Shu, Yang Zeyuan, Ma Xiongde, Liu Shengzu, Fang Chujing, Zhang Aoqi

Coal Geology & Exploration

Aiming at the large difference of water yield of different mine fields in Yushenfu mining area, based on a large amount of drilling, pumping test data collected in the area, from the weathering and denudation, burning effect, discontinuous distribution regions of aquifuges, microscopic pore structure, the influencing factors of water yield property of Yan’an Formation aquifer(YFA) are analyzed. Combined with the height of the water-conducting fissure zones, the influence of water yield property of YFA on water yield of mines is discussed. The results show that weathering and denudation cause the sandstone of Yan’an Formation to develop fissures and be …

A Method For Predicting Fractures In Carbonate Reservoirs Based On Fracture Identification-Sensitive Log-Seismic Parameter Model, Wang Zhiwei, Zhang Kai, Wu Qunhu, Zhang Benhua, Yu Shina, Zhang Zunxiang, Wu Yanjia

Coal Geology & Exploration

Carbonate reservoirs show fractures and strong heterogeneity, leading to limited applications of a single logging or seismic method in fracture identification. Therefore, this study proposed a method for predicting fractures in carbonate reservoirs based on a fracture identification-sensitive log-seismic parameter (FISLSP) model, and the details are as follows: (1) Based on petrophysical analysis results, as well as formation micro-imaging (FMI) logs and the interpretations of fractures at well locations, this study established a segmental fracture identification-sensitive parameter (FISP) model for fractures at well locations; (2) Using the optimal seismic attributes of near-well seismic traces determined based on the high-quality fractured …

Application And Prospect Of Acoustic Detection In The Mining Sector, Deng Jun, Wang Jinrui, Ren Shuaijing, He Qian, Wang Caiping, Qu Gaoyang

Coal Geology & Exploration

Acoustic detection for mines is a geophysical prospecting technique for mine information detection based on acoustic methods. Compared with other detection methods, acoustic detection has the advantages of wide applicability, high reliability, and low economic investment. This paper reviews the development of acoustic detection technology in the mine field and sorts out and expounds on the research progress and technical characteristics of this technology in detecting basic physical information inside mines and geological information outside mines. Furthermore, this study investigates the detection mechanisms, implementation methods, and applicable scenarios of this technology in determining the object states in the field of …

Study On Modification Of Plant Gum Flushing Fluid In Coal-Bearing Strata And Its Mechanism, Xie Chengchao, Wang Sheng, Yan Peng, Chen Liyi, Li Bingle, Zhang Jie

Coal Geology & Exploration

To improve the adverse effects of the depletion of plant gum resources on the application of flushing fluid in complex strata such as coal-bearing strata, a study was conducted on the compound and crosslinking modification of guar gum. A new type of plant gum flushing fluid (GXB) was developed using xanthan gum as the compound synergist and organic boron as the crosslinking modifier, with cross-linking control agent and inorganic treatment agent as the supplementary. Meanwhile, a series of performance evaluation was carried out. The evaluation results show that GXB has excellent performance and can meet the requirements of drilling in …

Introducing Ros-Projects To Undergraduate Robotic Curriculum, Lili Ma, Yu Wang, Chen Xu, Xiaohai Li

Publications and Research

This paper describes three MATLAB-ROS-based simulation projects developed for an undergraduate robotics course. The Robot Operating System (ROS) is an open-source framework that helps researchers and developers build and reuse code between robotics applications. Adoption of ROS in the undergraduate curricula is still rare due to its demanding requirements of C++/Python/Java programming skills and familiarity with Linux. Recently, MathWorks released its ROS Toolbox, making it easier to interact with simulators like the Gazebo and ROS-supported physical robots. The MATLAB-ROS-Gazebo simulation platform allows students to utilize other MATLAB Toolboxes, such as Image Processing, Computer Vision, Visualization, and Navigation Toolboxes, for fast …

Impact Of Perceived Stress During Oral Examination On Student Performance Outcomes, Alex M. Phan, Minju Kim, Marko V. Lubarda, Curt Schurgers, Huihui Qi

Psychology Faculty Articles and Research

Perceived stress plays an important role in student performance during examinations. There has been substantial research on how examinations impact students' emotional experiences in diverse academic contexts in connection to validity, reliability, and equity of assessment. The potential of some exams to produce increased anxiety in a portion of students has been recognized as a serious threat to these three assessment attributes. In light of this, the need for further studies on the impact of perceived stress on student performance is critical with the recent rise in interest in oral examinations as an assessment tool for large undergraduate courses. This …

From Rote Learning To Deep Learning: Filling The Gap By Enhancing Engineering Students' Reasoning Skills Through Explanatory Learning Activities, Huihui Qi, Minju Kim, Yu Li, Carolyn L. Sandoval, Curt Schurgers, Marko Lubarda, Xuan Emily Gedney, Saharnaz Baghdadchi, Alex M. Phan

Psychology Faculty Articles and Research

Rote learning refers to the superficial learning of concepts and procedures, typically by brute memorization and with little integration into existing cognitive schemas, resulting in poor knowledge retention and inability to apply the knowledge in new and evolving contexts. With rote learning, students usually learn declarative and procedural knowledge but usually do not pay attention to conditional knowledge (when to use what knowledge). As a result, they usually can replicate the problem-solving process in a familiar context but are unable to transfer the knowledge and use the concept for a new application.

This paper explores the use of explanatory learning …

Peer Oral Exams: A Learner-Centered Authentic Assessment Approach Scalable To Large Classes, Marko V. Lubarda, Alex M. Phan, Maziar Ghazinejad, Nathan Delson, Saharnaz Baghdadchi, Curt Schurgers, Minju Kim, Josephine Relaford-Doyle, Carolyn L. Sandoval, Huihui Qi

Psychology Faculty Articles and Research

Peer oral exams, a cross between oral exams and peer assessment, were designed and implemented in a high-enrollment undergraduate computer programming course for engineers. The intention was to leverage the educational and implementational advantages of both evidence-based approaches simultaneously. Oral exams, for instance, have been argued to promote conceptual understanding, self-reflection, communication competency, and professional identity formation in students – but their deployment in large classes is resource-demanding and nontrivial, stifling their broader adoption. Peer assessment, on the other hand, is highly scalable and affords students many potential educational benefits of its own, including the benefits of peer-enhanced learning, more …

Development Of A Raspberry Pi-Controlled Vex Robot For A Robotics Technology Course, Lili Ma, Justin Bartholomew, Yu Wang, Xiaohai Li

Publications and Research

This paper describes the development of a Raspberry PI-controlled VEX robot for an undergraduate robotic course. The Raspberry PI controls the mobile base built using the VEX robotics kit without using the Cortex micro-controller that comes with the kit. The aim is to create a physical robot that is manageable, easily replicable, and capable of performing advanced robotic control tasks such as vision-based control.

The constructed robot adopts the great features of the PI and the VEX hardware. Firstly, the VEX hardware consists of various sensors and actuators for students to practice the construction and assembly of an autonomous robot. …

Impact Of Critical Narrative On Students’ Abilities To Recognize Ethical Dilemmas In Engineering Work, Jeff Brown, Chad Rohrbacher, Taylor J. Mitchell, Dr. Leroy Long Iii, Jenna Korentsides, Joseph R. Keebler

Publications

This study aims to investigate the impact of exposure to critical narratives on students' abilities to recognize ethical dilemmas and broader impacts in engineering work. Critical narratives are place-based stories that engage students and help them enhance their critical thinking skills by making connections between the narratives, broader impacts of engineering work, and their responsibility to address these issues. The effectiveness of the critical narrative intervention was assessed by implementing discussion-based assignments around three critical narratives, which required students to listen to the narrative, respond to focus questions, engage with their peers, and reflect on the process. The intervention was …

Advances In Multiagent Systems Control: Multiplex Information Networks-Based Approaches And Beyond, Kimberly Witke

USF Tampa Graduate Theses and Dissertations

Multiagent systems control designs offer numerous advantages to increasingly complex civilian, military, and scientific tasks ranging from intelligent satellite swarm controls or autonomous traffic controls to remote triage and repair or remote wildlife observation, where the performance of a single agent is insufficient to execute the task at hand. Traditional methods in multiagent systems controls, however, have been infeasible for use in scalable, large-group formation controls.

With this in mind, the contribution of this dissertation is to bridge the gap in knowledge through both theoretical and experimental validation of multiagent systems control architectures. It addresses the challenges presented by unreliable, …