Engineering Commons^™

Identification Of Human Adrenal Carcinoma Cells Using Photoacoustic Flow Cytometry, Alexis Stahl

Electronic Theses and Dissertations

With consistently high mortality rates in patients with adrenal cancer, lack of early detection and diagnosis are an ever increasing problem in fighting the deadly disease. Currently, very few patients are diagnosed with adrenal cancer within the early stages due to the absence of symptoms until large tumors are formed, which is in most cases is fatal. Because of this, early detection equipment is crucial to optimizing the survival rate in patients. We studied the absorbance wavelength of human adrenal carcinoma cells, as well as the minimum cell concentration needed in samples using photoacoustic flow cytometry (PAFC). PAFC generates ultrasonic …

College Of Engineering News, Georgia Southern University

College of Engineering & Computing: News & Publications (2010-2023)

• DoD CySP Awards 3 GS Students

Artificial Stupidity: Data We Need To Make Machines Our Equals, Michaël Trazzi, Roman V. Yampolskiy

Faculty and Staff Scholarship

AI must understand human limitations to provide good service and safe interactions. Standardized data on human limits would be valuable in many domains but is not available. The data science community has to work on collecting and aggregating such data in a common and widely available format, so that any AI researcher can easily look up the applicable limit measurements for their latest project. AI must understand human limitations to provide good service and safe interactions. Standardized data on human limits would be valuable in many domains but is not available. Data science community has to work on collecting and …

Automating 35mm Photographic Film Digitization: X-Y Table Capture System Design And Assessment, Michael J. Bennett

Published Works

35mm still image formats are some of the most abundant photographic film types in cultural heritage collections. However, their special handling needs coupled with high resolution digital capture requirements have traditionally posed logistical constraints with regard to the formats’ digitization at scale. Through the use of a programmable X-Y table camera capture system, both slide and strip 35mm photographic film can be digitized in an automated fashion following Federal Agencies Digitization Guidelines (FADGI).

How Predictable Is Space Exploration?, Michael Christopher Howell

Theses and Dissertations

Recent research has suggested that progress in technological domains often improves in an exponential manner. The traditional method to model this increase in capability has been to fit a model with time or effort as an independent variable and then extrapolate the trend (Moore, 1965, Wright, 1936, Magee et al., 2014). Although other methods have been used as well (Nagy et al, 2013). While effective, these methods are not the only way to forecast such trends and they have their own limitations. Recent research has indicated that a potentially useful approach for modeling technological improvement is time series analysis. I …

Biomaterials For Bone Regeneration: Tunable Structural And Mechanical Characteristics, Anwer Mhanawee

Theses and Dissertations

Tissue engineering is a promising alternative treatment for damaged tissues. In bone regeneration, bone graft replacements can be made from different biomaterials (basically ceramic and polymer) and used for different treatment purposes. In the first section of this dissertation, the Compression test results showed that its modulus of elasticity depends on its porosity. Also, we developed a testing method to measure the swelling force of the material during expansion due to liquid absorption. The maximum swelling force was found to be proportional to the material modulus. In the second part, we successfully design, fabricate and characterize a novel expandable bone …

Elicitation And Aggregation Of Data In Knowledge Intensive Crowdsourcing, Dohoon Kim

All Computer Science and Engineering Research

With the significant advance of internet and connectivity, crowdsourcing gained more popularity and various crowdsourcing platforms emerged. This project focuses on knowledge-intensive crowdsourcing, in which agents are presented with the tasks that require certain knowledge in domain. Knowledge-intensive crowdsourcing requires agents to have experiences on the specific domain. With the constraint of resources and its trait as sourcing from crowd, platform is likely to draw agents with different levels of expertise and knowledge and asking same task can result in bad performance. Some agents can give better information when they are asked with more general question or more knowledge-specific task …

Ultrasound-Assisted Post-Pyrolysis Magnetization Of Microporous Biochar For Effective Removal Of Heavy Metals, Ronish Shrestha

Honors Theses

Low cost and efficient adsorption of heavy metals from wastewater and thorough removal of adsorbent after water treatment have become the two essential needs for the commercial use of any adsorbent. Biochar (BC), the solid byproduct of pyrolysis with microporous carbonaceous structure, has been increasingly recognized as an efficient adsorbent for a vast number of pollutants. Magnetization, though eases the separation and reuse of BC, significantly reduces its adsorption capacity to a comparatively much higher extent. In this study, a hybrid post-pyrolysis magnetization was developed which sustained and even significantly increased the adsorption capacity of biochar. The process included i) …

Zenneck Waves In Decision Agriculture: An Empirical Verification And Application In Em-Based Underground Wireless Power Transfer, Usman Raza, Abdul Salam

Computer Information Technology Faculty Publications

In this article, the results of experiments for the observation of Zenneck surface waves in sub GHz frequency range using dipole antennas are presented. Experiments are conducted over three different soils for communications distances of up to 1 m. This empirical analysis confirms the existence of Zenneck waves over the soil surface. Through the power delay profile (PDP) analysis, it has been shown that other subsurface components exhibit rapid decay as compared to the Zenneck waves. A potential application of the Zenneck waves for energy transmission in the area of decision agriculture is explored. Accordingly, a novel wireless through-the-soil power …

Campuspartner: An Assistive Technology For Pedestrians With Mobility Impairments, Cynthia R. Zastudil

Senior Honors Projects, 2020-current

Route-planning applications such as Google Maps and Apple Maps are used by millions of people each month. However, these mapping applications are optimized for vehicle navigation, and although they provide pedestrian routing, the route customization options aren’t sufficient for pedestrian users, especially those with mobility impairments. CampusPartner is an assistive mobile application that was designed with the purpose of supporting people with mobility impairments in planning and previewing their walking routes. By viewing routes in advance, users can see an overview and detailed information about them as well as turn-by-turn instructions. CampusPartner integrates existing services, GraphHopper, OpenStreetMap, and Mapbox, to …

Dataset For Analysis Of Very High Surface Area 3d Printed Media In A Moving Bed Biofilm Sequencing Batch Reactor For Wastewater Treatment, Gabriel Proano-Pena, Andres L. Carrano, David M. Blersch

Datasets

This dataset includes 15 subfolders named Table6 trough Table20. Each folder is associated with a supplemental table. Each subfolder includes three files: .csv, .pdf/A, and .txt. The Table6 folder contains the raw data derived from experimentation. The remaining folders relate to data processing represented by figures or remarked as significant in the related manuscript: "Analysis of very high surface area 3D printed media in a Moving Bed Biofilm Sequencing Batch Reactor for Wastewater Treatment".

Bibliometric Study Of Bibliometric Papers About Clustering, Preeti Mulay, Rahul Raghvendra Joshi, Archana Chaudhari

Library Philosophy and Practice (e-journal)

Bibliometric survey or bibliometric review papers generally analyses the work done previously by eminent personalities, authors, countries and various institutions which was published in giant databases like Scopus, Web of Science, Google Scholar, Research Gate and others. Bibliometric papers provide amalgamation of wide range of research papers from journals, conferences, reviews and other papers, which are working papers, papers with results, proposals and few of them are survey papers etc. Bibliometric papers are One-Stop-Solution for the readers and upcoming researchers to get acquainted entirely about the specific topic / domain. Bibliometric papers also help in smartly locating research-gaps for the …

Analysis And Investigation Of Hybrid Dc–Dc Non-Isolated And Non-Inverting Nx Interleaved Multilevel Boost Converter (Nx-Imbc) For High Voltage Step-Up Applications: Hardware Implementation, Mahajan Sagar Bhaskar, Dhafer J. Almakhles, Sanjeevikumar Padmanaban, Frede Blaabjerg, Umashankar Subramaniam, Dan M. Ionel

Power and Energy Institute of Kentucky Faculty Publications

In significant cases, the generated voltage needs to be step-up with high conversion ratio by using the DC-DC converter as per the requirement of the load. The drawbacks of traditional boost converter are it required high rating semiconductor devices and have high input current ripple, low efficiency, and reverse recovery voltage of the diodes. Recently, the family of Multilevel Boost Converter suggested and suitable configuration to overcome the above drawbacks. In this article, hybrid DC-DC non-isolated and non-inverting Nx Interleaved Multilevel Boost Converter (Nx-IMBC) is analyzed in Continuous Conduction Mode (CCM) and Discontinuous Conduction Mode (DCM) with boundary condition and …

A Virtual 4d Ct Scanner, Xiwen Li

All Computer Science and Engineering Research

4D CT scan is widely used in medical imaging. Images are acquired through phases. In this case, we can track the motion of organs such as heart. However, it also introduces motion artifacts. A lot of research focuses on remove these artifacts. It is difficult to acquire artifact data by a real CT scanner. In this project, we implement a virtual CT machine to simulate the real 4D CT scan. we also conduct experi- ments to check its clinical reality with respect to respiratory and heart motion parameters.

The Development Of All Solid-State Optical Cryo-Cooler, Junwei Meng

Optical Science and Engineering ETDs

This dissertation describes the development of an all solid-state optical cryo-cooler. Crystals of 10% wt. ytterbium-doped yttrium lithium fluoride (Yb³⁺:YLF) are used to cool an infrared HgCdTe sensor payload to an absolute temperature below 135 K, equivalent to delta T equal 138 K below ambient. This record level of cooling is accomplished with a single stage, in a completely vibration-free environment, with a corresponding cooling power of 190 mW. This milestone is made possible by the design and fabrication of an undoped YLF thermal link that efficiently shields the payload with a non-right angle kink from intense anti-Stokes …

A Study Of The Efficiency And Effectiveness Of The First Four Iterations Of Sierpinski Carpet Fractal-Like Fins At Increasing Angles In Natural Convection, Sophia N. Fleri

Honors College Theses

Fractal geometries have been found in several studies to increase a fin’s thermal performance. Both the reductions of volume and mass accompanied by an increase in performance are desirable to prevent malfunction of the device through passive heat dissipation. The Sierpinski carpet fractal pattern, beginning with a basic square geometry in which an increasing number of perforations are incorporated through each successive iteration, reduces the fin’s mass while increasing its surface area simultaneously; this increase in surface area increases the rate of heat transfer experienced across the fin. The first four iterations of the Sierpinski carpet pattern, each with identical …

Understanding Early Childhood Engineering Interest Development As A Family-Level Systems Phenomenon: Findings From The Head Start On Engineering Project, Scott Pattison, Gina Svarovsky, Smirla Ramos-MontañEz, Ivel Gontan, Shannon Weiss, VeróNika NúÑEz, Pam Corrie, Cynthia Smith, Marcie Benne

Journal of Pre-College Engineering Education Research (J-PEER)

There is growing recognition that interest is critical for engaging and supporting learners from diverse communities in engineering and other science, technology, engineering, and mathematics (STEM) topics. Although interest research has historically focused on older children, studies demonstrate that preschool-age and younger children also develop persistent, individualized interests in different objects, activities, and topics and that these early interests have important implications for ongoing learning and development. Unfortunately, there is relatively little research on engineering learning in early childhood and almost no work specific to the concept of interest. To begin to address this need, we conducted in-depth case study …

Geomechanical Features Of The State Of Mining Operations In The Development Of The Eastern Part Of The Charmitan Gold Deposit, Kalmykov V.N., Ravil Kulsaitov, Isfandiyor Sodikov, T.U. Khudoyarov

Gorniy vestnik Uzbekistana

Increasing the depth of mining operations at Charmitan vein Deposit complicates the geomechanical situation, which is expressed in an increase in the number of col- lapses of host rocks in the treatment space, where the workers of the treatment unit are located. The only way to normalize the geomechanical environment is to implement development systems with a bookmark of the developed space. In connection with the above, full-scale methods of measuring the stress state by the finite element method, modeling of the geomechanical situation were carried out. In the course of research, the parameters of force fields in natural and …

Forecasting The Gas Fluiding Process Deposits With Application Of The Universal Regression Model, Sh.Zh. Mirboboev, Z.A. Razykov, S.K. Sokhoshko, Yu. Sultonov

Gorniy vestnik Uzbekistana

This article discusses mathematical methods for predicting the degree of flooding of gas deposits using the Universal regression model, using the example of actual data from observation wells of the Yamburgskoye oil and gas condensate field.

Researches In The Field Of Technology Of Extraction Concentration Of Rhenium From Desorbates, M.A. Kurbanov, Sh.Sh. Alikulov, D.S. Ganieva, N.M. Karimov

Gorniy vestnik Uzbekistana

New progressive methods include air-purged drilling. This method is fundamentally different from washing with a liquid in that a gaseous agent, in particular compressed air, is used to clean the bottom of the sludge. Drilling practice has proven that the use of compressed air as a cleaning agent provides a significant increase in the mechani- cal drilling speeds and reduces the time required to eliminate geological complications, due to which

Effect Of Gold Nanoparticle Parameters On Indicators Of Technology Of Its Extraction From Ores, A.E. Vorobev, T.V. Chekushina, К.А Vorobev, A.G. Oganesyan

Gorniy vestnik Uzbekistana

The authors proposed the isolation of a large piece from the conveyor belt with a layer of small particles of bulk cargo to reduce dynamic loads. They suggest installing a device for forced segregation of bulk cargo under a loaded belt. The authors developed a mathematical model for the behavior of a large piece on a conveyor belt.

Study Of Gold Ore Deposits Of Aristantau For Resilience And Search Technologies For Its Processing, Kuvandik Sanakulov, Omon Fuzaylov, J.A. Kenbaeva

Gorniy vestnik Uzbekistana

The article presents the results of research of chemical, material, mineralogical and rational analyses of persistent gold-bearing ore of The aristantau Deposit. The re- sults of experiments indicated the content of sulfide sulfur, organic carbon, arsenic and antimony. As a result, the technological scheme included operations for oxidative firing of the flotation concentrate. Various forms of fine-grained gold were found in pyrite, arsenopyrite, and sphalerite.

The Role Of Chinese Mining Industry In Domestic And Global Economy, Suen Li Chan, Djulibekov M.K.

Gorniy vestnik Uzbekistana

The article describes the impact of the Chinese gold industry on the world gold market and the economic growth of China for the period 2000-2020. Despite a slowing economic trend, the Chinese mining industry continues to experience growth. China produces about half of the world's steel, imports more than 70% of the world’s seaborne iron ore, and produces around 90% of the world’s rare earth metals. The paper demonstrates the importance of the Chinese mining sector and describes the key concepts of the successful government and business strategies.

Design Of A 3d Printed Bioreactor For Bone Cancer Research, Brooklyn K. Vanderwolde, Katelyn Hillson

The Journal of Undergraduate Research

Bone cancer is an aggressive disease and has peak occurrence during physiological stimulation of growth and aging. Astronauts who undergo long-term space missions also acquire an increased risk of bone tissue degeneration and cancer. Few in-vitro models currently exist capable of reproducing the complex microenvironment of bone tissue to support multicellular activity in a three-dimensional structure. This limits the ability to understand disease progression and develop suitable treatment strategies. Therefore, developing a bone tissue model and an associated bioreactor is critical to understand the risks associated with cancer progression and improve treatment and preventions related to those risks. The goal …

Comparative Analysis Of The Results From The Ideal Gas Assumptions With More Rigorous Calculations From Pro/Ii Of The Production Of Pharmaceutical Grade Acetone, Soibifaa Frank-Briggs

Honors Theses

The Chemical engineering team was assigned by Landshark Inc to investigate the production of 30,000 tonnes/yr of pharmaceutical-grade acetone with a purity of 99.9 wt.% from the dehydrogenation of isopropanol (IPA). The team was tasked with determining the necessary process and unit operation criteria to ensure the economic feasibility of the proposed plant.

The major goal of this thesis is to provide a data comparison of the reactor in acetone production process when designed in Microsoft Excel and Pro/II. The first part of this thesis will introduce the base case briefly, transition into engineering optimizations and show the results found …

Numerical Modeling Of Magnetic Fields For Mirror Neutron Search Experiment, Adam Johnston

Pursuit - The Journal of Undergraduate Research at The University of Tennessee

This paper will outline the configuration of 3D magnetic field model simulated from electric current sources using MATLAB. The model is using 3D arrays allowing for quick and accurate numerical approximations of Bio-Savart integrals, of error < , modeling the behavior of a magnetic field due to current carrying wires. We will discuss the development of a 3D magnetic field configuration produced by the current carrying wires around a large 2.5 m diameter vacuum beam tube in the proposed mirror neutron search experiment at High Flux Isotope Reactor (HFIR) at Oak Ridge National Laboratory (ORNL). The simulations demonstrate that the magnetic field with uniformity better than ± 2.5 mG that will allow for optimal results in experiment within the controlled range of net magnetic field magnitudes |B| 500 mG and in the large vacuum tube along 20-m neutron flight path can be achieved for an approximately 6 cm radius section at the center of the tube.

Centrality Of Blockchain, Zixuan Li

All Computer Science and Engineering Research

Decentralization is widely recognized as the property and one of most important advantage of blockchain over legacy systems. However, decentralization is often discussed on the consensus layer and recent research shows the trend of centralization on several subsystem of blockchain. In this project, we measured centralization of Bitcoin and Ethereum on source code, development eco-system, and network node levels. We found that the programming language of project is highly centralized, code clone is very common inside Bitcoin and Ethereum community, and developer contribution distribution is highly centralized. We further discuss how could these centralizations lead to security issues in blockchain. …

Solving Disappearance At Gastech With Visual Analytic Techniques, Saulet Yskak

All Computer Science and Engineering Research

We are living in a society, where images and charts speak louder than words. Therefore, information visualization plays a major role in solving complex problems since it provides a visual summary of data that makes it easier to identify trends and patterns.

In this master project, I propose a web – based visual analytics tool that enables to analyze complex email and time based / event series data. The visual analytics framework uses test data from IEEE VAST Challenge 2014: Mini challenge 1 that concentrated on the disappearance of employees of a fictional GAStech company, but the tool allows users …

Impact Resistant 3-D Printed Structures, Anna Schleper

The Journal of Undergraduate Research

This paper discusses the impact resistance of the mantis shrimp structure. Using past studies, an experiment was performed to identify an optimal wall thickness of a modified mantis shrimp structure. Various samples were 3-D printed using PLA and subjected to compression testing. Analysis of the data resulted in the finding that a wall thickness of 1.4 mm is the optimal thickness to obtain a lightweight, but impact resistant structure. These results are discussed further, along with any limitations of the findings.

Chemical And Thermal Sintering Of Supported Metals With Emphasis On Cobalt Catalysts During Fischer−Tropsch Synthesis, Mahmood Rahmati, Mohammad-Saeed Safdari, Thomas H. Fletcher, Morris D. Argyle, Calvin H. Bartholomew

Faculty Publications

This comprehensive critical review combines, for the first time, recent advances in nanoscale surface chemistry, surface science, DFT, adsorption calorimetry, and in situ XRD and TEM to provide new insights into catalyst sintering. This work provides qualitative and quantitative estimates of the extent and rate of sintering as functions of nanocrystal (NC) size, temperature, and atmosphere. This review is unique in that besides summarizing important, useful data from previous studies, it also advances the field through addition of (i) improved or new models, (ii) new data summarized in original tables and figures, and (iii) new fundamental perspectives into sintering of …