Engineering Commons^™

Structure Optimization And Coal Breaking Effect Of Air Jet Nozzle For Post-Mixed Abrasive, Yang Heng, Wei Jianping, Cai Yubo, Zhang Lulu, Liu Yong

Coal Geology & Exploration

Hydraulic pressure relief and penetration enhancement technology plays an important role in coal seam gas hozard control, but it is easy to lead to dynamic phenomena such as hole collapse, drill holding and hole spraying during its application in the soft coal seams. Non-hydraulic pressure relief and penetration enhancement is one of the feasible technologies to break through the bottleneck of efficient gas extraction technology in soft coal seams. To this end, the post-mixed abrasive air jet coal breaking and pressure relief technology was proposed with the efficient coal breaking capability of abrasive air jet. Specifically, the abrasive and air …

Structural Characteristics Of Adsorption Pores In Low-Rank Coals And Their Effects On Methane Adsorption Performance, Li Shugang, Zhou Yuxuan, Hu Biao, Qin Xueyan, Kon Xiangguo, Bai Yang, Zhang Jingfei

Coal Geology & Exploration

The study of the CH₄ adsorption characteristics of low-rank coals is of great significance for gas content prediction, gas drainage, and hazard prevention. Therefore, this study selected six typical low-rank coal samples from coal mines in Shaanxi Province, on which low-temperature N₂ adsorption experiments, low-pressure CO₂ adsorption experiments, and CH₄ isothermal adsorption experiments were carried out. As a result, the structural characteristics of adsorption pores in low-rank coals were obtained. Moreover, this study quantitatively characterized the relationships between the parameters of CH₄ adsorption characteristics and those of adsorption pore structure using the micropore filling and …

An Evaluation Method For Geological Dynamic Environments Of Mines And The Classification Of Mines Subjected To Rock Bursts, Lan Tianwei, Zhang Zhijia, Yuan Yongnian, Han Jun, Liu Hongquan, Zhang Junjie, Zhang Hongwei, Luo Boyuan, Liu Mingwei

Coal Geology & Exploration

The occurrence of dynamic disasters in mines, such as rock bursts, is affected by multiple factors and is the result of the coupling of the natural geological dynamic environment and mining engineering disturbances. The characteristics of rock bursts including their time, space, and intensity are related to the regional geological dynamic environment of mines. Different coal fields, mining areas, and mines have different regional geological dynamic environments. Accordingly, some coal mines do not have a geological dynamic environment of rock bursts, while some are subjected to different types of rock bursts. This study proposed an evaluation method for the geological …

Coal And Gas Outburst Mechanism: Research Progress And Prospect In China Over The Past 70 Years, Zhang Chaolin, Wang Peizhong, Wang Enyuan, Xu Jiang, Li Zhonghui, Liu Xiaofei, Peng Shoujian

Coal Geology & Exploration

The effective prevention and control of coal and gas outbursts have always been a challenge for safe coal mining in China, and their prerequisite and basis are in-depth research on the coal and gas outburst mechanism. This study expatiated the efforts and achievements of China made in research on the coal and gas outburst mechanism over the past 70 years, which can be divided into four stages, namely active exploration (1955‒1977), the establishment of the theoretical foundation (1978‒2002), rapid development (2003‒2015), and stable development (2016 to the present). This study explored the hot research topics and frontier trends of the …

Characteristics And Coal-Controlling Effects Of Structures In The Zhundong Coalfield, Wang Meng, Ma Ruying, Shan Yadi, Yan Yichao

Coal Geology & Exploration

The coal controlling of structures is critical to mining safety. However, few studies have been conducted on the structures of the Zhundong coalfield according to existing data. To ensure safe and efficient coal mining, it is necessary to conduct a study targeting the geological conditions for the coal mining of the coalfield. This study investigated the structural characteristics of the Zhundong coalfield. Based on the statistics of the fault structures, this study quantitatively characterized the structural complexity of the coalfield using fractal dimension, explored the current structural characteristics and tectonic dynamic genesis of the structures in Zhundong coalfield, and analyzed …

The Toxicology Of Particulate Matter Emitted From Coal Combustion And The Geological Origin Of Lung Cancer Epidemic In Xuanwei City, Yunan Province, China, Shao Longyi, Zhang Mengyuan, Feng Xiaolei, Jiao Jiewei, Wang Wenhua, Zhou Yiping

Coal Geology & Exploration

Xuanwei City in Yunnan Province is the area struck by the most severe lung cancer in China, with the incidence and mortality of lung cancer ranking first in the world. The study of genomics of lung cancer patients has shown that lung cancer in Xuanwei City has distinctive genetic characteristics and a unique incidence mode related to the environment. This study reviewed the epidemiological characteristics of the lung cancer epidemic in Xuanwei, as well as the level of pollution and toxicological characteristics of emissions from coal combustion. Moreover, this study discussed the geological origins of the lung cancer epidemic in …

Orientation And Major Research Problems Of Coal Geological Exploration In China Under New Conditions, Wang Tong, Han Xiaozhong, Deng Jun, Sun Yajun, Li Zengxue, Tang Shuheng, Mao Shanjun, Lin Zhongyue, Li Congcong, Zhao Xin, Sun Jie, Song Hongzhu, Zhang Biao, Meng Fanbin, Wu Zhaojian, Deng Xiaoli, Jiang Tao

Coal Geology & Exploration

Coal is a major energy source in China and an important raw material in the coal chemical industry in the country. Over the past 70 years since the founding of New China, coal geological exploration has been carried out in close combination with the national strategic demand, discovering the urgently needed coal resources for the country and ensuring the sufficient supply of national coal energy. This paper systematically summarizes the primary achievements made in coal geological surveys in recent years, analyzes the major research problems with the development of coal geological exploration under the current new conditions, and positions coal …

Geothermal Energy Exploitation And Storage In Coal Field Under The Dual Carbon Goal, Wang Jiyang, Kong Yanlong, Duan Zhongfeng, Zhang Jixiong, Luo Xilian, Huang Yonghui, Luo Naning, Cheng Yuanzhi, Zhou Nan, Zhang Weizun, Pang Zhonghe

Coal Geology & Exploration

The development of geothermal energy in coalfield can not only improve the temperature environment of coal mining, but also turn waste into treasure through the clean utilization of geothermal energy. Especially, it is of great prospect to store energy in the mined-out area of coalfield under the “dual carbon” goal at present. Herein, in this paper, it was estimated that the geothermal reserves in the main coal-bearing areas of China were 1.12 × 10¹⁹ kJ, equivalent to 379.539 billion tons of standard coal, and the recoverable geothermal reserves were 1.71 × 10¹⁸ kJ, equivalent to 56.931 billion tons …

Improving Network Security For High Schools In Carolina, Southeastern, And South Central Conference, Eden Sampson

Campus Research Month

Cybersecurity is a very important factor that is often overlooked until one becomes a victim of hackers and viruses. One of the main institutions that are caught off guard by cyber issues are high schools. Adventist high schools often fall into this issue as well. It is very dangerous because of the sensitive information handled on school networks as well as the financial loss that cyber security attacks may cause. Moreover, just a few Adventist high schools have IT staff who are qualified to protect the school from cyberattacks or to help with recovery. Therefore, our contribution is to create …

Game Based Learning: Engaging Students And Measuring Their Progress, Jonathan Stover, Siegwart Mayr

Campus Research Month

Digital natives are constantly surrounded by technology. Therefore, traditional methods of teaching are becoming obsolete and increasingly creative solutions are required to keep students engaged. Among these solutions is a concept called game based learning. Game based learning is a unique educational experience that incorporates the engagement factors of video games with education. Even though it is still in an early stage of adoption, game based learning has been proven to be a surprisingly effective tool for providing students with a valuable educational experience. Even with this evidence in mind, current game based learning programs still hold the potential to …

Microstructure Characterization Of Az31 Under Strain, Aaron Beckley

Liberty University Research Week

Undergraduate

Three Minute Thesis

The Predicting And Modelling Of Commonly Used Structural Steels Under Cyclic Loading, Adam Maroni

Liberty University Research Week

Undergraduate

Three Minute Thesis

Design Optimization Of Shot Peening Process With Multiscale Modeling Of Viscoplasticity With Internal State Variable Codes, Joby M. Anthony Iii

Liberty University Research Week

Graduate

Three Minute Thesis

Comparison Of Internal Mixing Physics For Two Types Of Non-Invasive Respiratory Therapy, Robert Kacinski

Liberty University Research Week

Graduate

Three Minute Thesis

Hot Spots: Quantifying Risk For Reactor Failure And A Measure For The Validity Of The Lumped Capacitance Assumption, Elijah Yoder

Liberty University Research Week

Graduate

Three Minute Thesis

The Effects Of Energy Drinks On Muscles Using Electromyography (Emg) Sensors- A Work In Progress, Molly Elder

Liberty University Research Week

Undergraduate

Applied

Development Of Graphene Oxide/Carbon Nanofiber Hybrid Structure, Greta Wilkins

Liberty University Research Week

Undergraduate

Applied

Transverse Third-Damper To Improver Suspension Systems For In-Wheel Motor Driven Electric Vehicles, Kayden Bingham, Michael Debard

Liberty University Research Week

Undergraduate

Applied

Design Of A Manufacturing Process For The Fabrication And Testing Of Electromechanical Transduction In Stretchable Electronics, Matthew Marcinko

Liberty University Research Week

Undergraduate

Applied

Undersubscription: An Underutilized Factor In High-Performance Computing, Reid Prichard

Liberty University Research Week

Graduate

Applied

Exploding Banana Puree, Daniel Wilson

Liberty University Research Week

Graduate

Applied

Spectral Fatigue Behavior Of Az31 Magnesium During Variable Loading, Manuel Figueroa Gomez, Daniel Kenney

Liberty University Research Week

Undergraduate

Applied

Drone Maneuverability Around Built And Natural Structures: Phase I, Fabrication And Testing Of Mock Environments, Hannah Deter

Liberty University Research Week

Undergraduate

Applied

Mechanical Properties Of Composites Containing Exfoliated-Graphite/Epoxy Sensors, Quinn Reed

Liberty University Research Week

Undergraduate

Applied

A Molecular Dynamics Study On Properties Of Poly Dimethyl Siloxane With Silica Nanoparticles For Polymer Nanocomposites: Part I, Modeling And Preliminary Simulations, Joshua Ingram

Liberty University Research Week

Undergraduate

Applied

Advancing Real-Time Brain Computer Interface With Electroencephalography, Nathan Child

Liberty University Research Week

Undergraduate

Applied

Machine Learning Based Software Fault Prediction Models, Gurmeet Kaur, Jyoti Pruthi, Parul Gandhi

Karbala International Journal of Modern Science

The study aims to identify soft-computing-based software fault prediction models that assist in resolving issues related to the quality, reliability, and cost of the software projects. It proposes models for implementation of software fault prediction using decision-tree regression and the K-nearest neighbor technique of machine learning. The proposed models have been designed and implemented in Python using designed metric suites as input, and the predicted-faults as output, for the real-time, wider dataset from the Promise repository. By comparing the prediction and validation results of the proposed models for the same dataset, it has been concluded that the decision-tree regression-based fault …

Analysis The Role Of The Internet Of Things And Industry 4.0 In Healthcare Supply Chain Using Neutrosophic Sets, Ahmed M. Abdelmouty, Ahmed Abdel-Monem, Samah Ibrahim Abdel Aal, Mahmoud M. Ismail

Neutrosophic Systems with Applications

In today's global economy, the Healthcare supply chain (HCSC) must be aware of a market that is both complicated and ever-changing. The HCSC in Industry 4.0 aims to give patients the medicine they need as quickly and cheaply as possible. The HCSC can improve operations by automating routine tasks and reducing human error by using new technologies like the "Internet of Things" (IoT); so, there is a need to analyze the role of IoT and Industry 4.0 in the Healthcare Supply Chain. This paper aims to analyze the role of IoT and Industry 4.0 in HCSC. Also, this paper proposes …

Recent Advances In Antimicrobial Peptide Hydrogels, Aryanna Copling, Maxwell Akantibila, Raaha Kumaresan, Gilbert Fleischer, Dennise Cortes, Rahul S Tripathi, Valerie J. Carabetta, Sebastian Vega

Cooper Medical School of Rowan University Departmental Research

Advances in the number and type of available biomaterials have improved medical devices such as catheters, stents, pacemakers, prosthetic joints, and orthopedic devices. The introduction of a foreign material into the body comes with a risk of microbial colonization and subsequent infection. Infections of surgically implanted devices often lead to device failure, which leads to increased patient morbidity and mortality. The overuse and improper use of antimicrobials has led to an alarming rise and spread of drug-resistant infections. To overcome the problem of drug-resistant infections, novel antimicrobial biomaterials are increasingly being researched and developed. Hydrogels are a class of 3D …

Mask-On Breathing Awareness Trainer (Mobat), Robert Larson, Yuzhong Shen

Modeling, Simulation and Visualization Student Capstone Conference

Currently there is no low-cost solution to teach large quantities of Naval Aviators on how to correctly breath on an oxygen mask. This report will discuss the design and implementation of a mask-on breathing apparatus for use with United States Naval Aircrew for initial and annual familiarization. With the current uptick in physiological episodes within the naval aviation enterprise, there has been a need to find solutions to this problem. Currently when a naval aircrew is trained in aviation physiological threats, they do so with normobaric hypoxia tools in the form of the 9A19 Normobaric Hypoxia Trainer for aircrew who …