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Articles 1 - 13 of 13
Full-Text Articles in Engineering
Factors Associated With Mutations: Their Matching Rates To Cardiovascular And Neurological Diseases, Hannah B. Lucas, Ian Mcknight, Regan Raines, Abdullah Hijazi, Christoph Hart, Chan Lee, Do-Gyoon Kim, Wei Li, Peter H. U. Lee, Joon W. Shim
Factors Associated With Mutations: Their Matching Rates To Cardiovascular And Neurological Diseases, Hannah B. Lucas, Ian Mcknight, Regan Raines, Abdullah Hijazi, Christoph Hart, Chan Lee, Do-Gyoon Kim, Wei Li, Peter H. U. Lee, Joon W. Shim
Biomedical Engineering Faculty Research
Monogenic hypertension is rare and caused by genetic mutations, but whether factors associated with mutations are disease-specific remains uncertain. Given two factors associated with high mutation rates, we tested how many previously known genes match with (i) proximity to telomeres or (ii) high adenine and thymine content in cardiovascular diseases (CVDs) related to vascular stiffening. We extracted genomic information using a genome data viewer. In human chromosomes, 64 of 79 genetic loci involving >25 rare mutations and single nucleotide polymorphisms satisfied (i) or (ii), resulting in an 81% matching rate. However, this high matching rate was no longer observed as …
Quantifying Surface Morphology Of Manufactured Activated Carbon And The Waste Coffee Grounds Using The Getis-Ord-Gi* Statistic And Ripley’S K Function, Sanghoon Lee, Sukjoon Na, Olivia G. Rogers, Sungmin Youn
Quantifying Surface Morphology Of Manufactured Activated Carbon And The Waste Coffee Grounds Using The Getis-Ord-Gi* Statistic And Ripley’S K Function, Sanghoon Lee, Sukjoon Na, Olivia G. Rogers, Sungmin Youn
All Engineering Faculty Research
Activated carbon can be manufactured from waste coffee grounds via physical and/or chemical activation processes. However, challenges remain to quantify the differences in surface morphology between manufactured activated carbon granules and the waste coffee grounds. This paper presents a novel quantitative method to determine the quality of the physical and chemical activation processes performed in the presence of intensity inhomogeneity and identify surface characteristics of manufactured activated carbon granules and the waste coffee grounds. The spatial density was calculated by the Getis-Ord-Gi* statistic in scanning electron microscopy images. The spatial characteristics were determined by analyzing Ripley’s K function and complete …
Experiment On Activated Carbon Manufactured From Waste Coffee Grounds On The Compressive Strength Of Cement Mortars, Sukjoon Na, Sanghoon Lee, Sungmin Youn
Experiment On Activated Carbon Manufactured From Waste Coffee Grounds On The Compressive Strength Of Cement Mortars, Sukjoon Na, Sanghoon Lee, Sungmin Youn
All Engineering Faculty Research
In this paper, we performed an experiment with activated carbon manufactured from waste coffee grounds on the compressive strength of normal cement mortars. The activated carbon reinforcement was manufactured from waste coffee grounds, and the collected coffee grounds were then transformed into activated carbon granules through the physical activation process. The activated carbon/cement composites were prepared by mixing cement with activated carbon granules with the weight fractions of 0.5%, 1%, 1.5%, 5%, and 10% cement. The experimental results show that adding activated carbon up to 1.5 wt% increased the early strength of cement mortars. Furthermore, we found that the composites …
Multidisciplinary And Multi-Objective Optimal Design Of A Cascade Control System For A Flexible Wing With Embedded Control Surfaces Having Actuator Dynamics, Christopher Stephen Greer
Multidisciplinary And Multi-Objective Optimal Design Of A Cascade Control System For A Flexible Wing With Embedded Control Surfaces Having Actuator Dynamics, Christopher Stephen Greer
Theses, Dissertations and Capstones
A multidisciplinary and multi-objective optimization approach that integrates the design of the control surfaces’ sizes, active control systems, and estimator for an aircraft’s wing with three control surfaces is developed. Due to its attractive stability robustness properties, a control system based on the LQR (Linear Quadratic Regulator) is built for each control surface. The geometrical parameters of the control surfaces such as the span wise and chord lengths, the design details of the LQR penalty matrices, and the locations of the estimator poles are tuned by a widely used multi-objective optimization algorithm called NSGA-II (Non-dominated Sorting Genetic Algorithm). Four objectives …
Peer-To-Peer Energy Trading For Networked Microgrids, Jonathan David Warner
Peer-To-Peer Energy Trading For Networked Microgrids, Jonathan David Warner
Theses, Dissertations and Capstones
Considering the limitations of the existing centralized power infrastructure, research interests have been directed to decentralized smart power systems constructed as networks of interconnected microgrids. Therefore, it has become critical to develop secure and efficient energy trading mechanisms among networked microgrids for reliability and economic mutual benefits. Furthermore, integrating blockchain technologies into the energy sector has gained significant interest among researchers and industry professionals. Considering these trends, the work in this thesis focuses on developing Peer-to-Peer (P2P) energy trading models to facilitate transactions among microgrids in a multiagent network. Price negotiation mechanisms are proposed for both islanded and grid-connected microgrid …
Renewable Energy Production By Solar Chimney: The Influence Of Curved Guide Vanes On The Performance Of A Solar Chimney Using Cfd Simulation, Haokun Xue
Theses, Dissertations and Capstones
The aim of this study is to investigate the effect of the guide vanes on the efficiency of the turbine of solar chimney power plant using Computational Fluid Dynamics (CFD). In this study, a 3-Dimentional CFD simulation of solar chimney power plant based on the Manzanares prototype is performed. The CFD simulation is validated by comparing the experimental data from the Manzanares prototype and simulation data with both 2D and 3D cases. To capture turbulent flow inside the chimney, the SST 𝑘 − 𝜔 turbulence model is used. The first object is to investigate the flow performance under the influence …
The U-Net-Based Active Learning Framework For Enhancing Cancer Immunotherapy, Vishwanshi Joshi
The U-Net-Based Active Learning Framework For Enhancing Cancer Immunotherapy, Vishwanshi Joshi
Theses, Dissertations and Capstones
Breast cancer is the most common cancer in the world. According to the U.S. Breast Cancer Statistics, about 281,000 new cases of invasive breast cancer are expected to be diagnosed in 2021 (Smith et al., 2019). The death rate of breast cancer is higher than any other cancer type. Early detection and treatment of breast cancer have been challenging over the last few decades. Meanwhile, deep learning algorithms using Convolutional Neural Networks to segment images have achieved considerable success in recent years. These algorithms have continued to assist in exploring the quantitative measurement of cancer cells in the tumor microenvironment. …
An Analysis Of Estimated Costs Versus Actual Costs In Usace Section 14 Emergency Streambank Protection Projects, Hunter Waugaman
An Analysis Of Estimated Costs Versus Actual Costs In Usace Section 14 Emergency Streambank Protection Projects, Hunter Waugaman
Theses, Dissertations and Capstones
The U.S. Army Corps of Engineers (USACE) Civil Works projects are designed to provide national management of water resources. These works use emergency streambank protection to protect public facilities, like bridges and highways. The projects under this authority have limited funding, therefore, many design and field studies are omitted, which increases project uncertainties resulting in cost overruns and contract modifications. This study analyzes previously constructed projects by comparing the independent government estimate with the contractor’s actual costs and identifying the variables causing these differences via statistical analysis. The variables identified are categorized into those elements that affect the accuracy of …
Asset Management Framework For The United States Army Corps Of Engineers Lock And Dam Electrical Equipment, Megan Elizabeth Bates
Asset Management Framework For The United States Army Corps Of Engineers Lock And Dam Electrical Equipment, Megan Elizabeth Bates
Theses, Dissertations and Capstones
The focus of this thesis is to design an efficient and effective preventative maintenance program for the electrical equipment that the United States Army Corps of Engineers (USACE) operates at the locks and dams. This thesis presents the concept of asset management and designs a framework to manage the electrical assets at USACE. The methodology was tested, and the results validated the framework proposed in this thesis. The framework was tested on two separate projects and the results were the same optimized strategies, which shows that the framework is robust and can be implemented into each project and can give …
Climate Resilience: Examination Of Revised Heat Transfer Models In The Enhanced Integrated Climatic Model For Pavement Temperature Prediction, Austin Michael Jarrell
Climate Resilience: Examination Of Revised Heat Transfer Models In The Enhanced Integrated Climatic Model For Pavement Temperature Prediction, Austin Michael Jarrell
Theses, Dissertations and Capstones
The Mechanistic Empirical Pavement Design Guide (MEPDG) is commonly referenced as the state-of-the-practice for the analysis and design of new and rehabilitated pavement assets. The Enhanced Integrated Climatic Model (EICM) incorporated within the MEPDG is a well-recognized and standardized method for estimating temperature profiles in pavements; temperature is a portion of the climate inputs in the MEPDG. Many have already begun to convert atmospheric temperature predictions from externally based climate models into the MEPDG to create robust designs for climate change. As pavement designers and researchers seek robust solutions while formulating resilient pavement designs, it is likely that the EICM …
Artificial Intelligence Aided Receiver Design For Wireless Communication Systems, Wenjie Xu
Artificial Intelligence Aided Receiver Design For Wireless Communication Systems, Wenjie Xu
Theses, Dissertations and Capstones
Physical layer (PHY) design in the wireless communication field realizes gratifying achievements in the past few decades, especially in the emerging cellular communication systems starting from the first generation to the fifth generation (5G). With the gradual increase in technical requirements of large data processing and end-to-end system optimization, introducing artificial intelligence (AI) in PHY design has cautiously become a trend. A deep neural network (DNN), one of the population techniques of AI, enables the utilization of its ‘learnable’ feature to handle big data and establish a global system model. In this thesis, we exploited this characteristic of DNN as …
A Molecular Dynamic Study On The Piezoelectric Properties Of Bulk Zns And Nanobelts, Rui Xie
A Molecular Dynamic Study On The Piezoelectric Properties Of Bulk Zns And Nanobelts, Rui Xie
Theses, Dissertations and Capstones
In this thesis we proved the feasibility of using classical atomic simulations, namely molecular dynamics and molecular statics, to study the piezoelectric properties of bulk and nanobelts ZnS structures, by utilizing the core-shell atomic potential model. Based on the verification of bulk and nanobelts ZnO piezoelectric constants, utilizing LAMMPS scripts and the Nyberg et al. core-shell potential, we reported the bulk ZnS piezoelectric constants calculated using three different classical interatomic core-shell ZnS potentials; the Wright and Jackson (1995) potential, the Wright and Gale (2004) potential, and the Namsani et al. (2015) potential. The simulation results showed that the Wright and …
A Water Quality And Contaminant Source Assessment Of Arbuckle Creek In Fayette County, West Virginia, Sarah Ashby Simonton
A Water Quality And Contaminant Source Assessment Of Arbuckle Creek In Fayette County, West Virginia, Sarah Ashby Simonton
Theses, Dissertations and Capstones
Arbuckle Creek, located in Minden, West Virginia, is a stream that runs through Oak Hill, WV and is characterized by the presence of the Oak Hill Wastewater Treatment Plant and the history of the contamination of polychlorinated biphenyl (PCBs) from the copious amount of contamination from the Shaffer Equipment Site and the pollution from mining completed in the area throughout the 1900’s. In order to assess the reaches of the current water quality, samples were collected and assessed for benthic macroinvertebrates, water parameters, benthic algae, and habitat. This was accomplished using the West Virginia Department of Environmental Protection (WVDEP) agency’s …