Engineering Commons^™

Development Of Plasma Functionalized Nano-Additives For Oils And Study Of Their Tribological Properties, Vinay Sharma

Material Science and Engineering Dissertations - Archive

Lubricants used in motor engines contain various chemical species to help enhance energy efficiency and provide increased longevity. Unfortunately, at the same time, these additives become a source of catalytic poisoning, thus increasing emissions from the tailpipe. With growing concern for the negative impacts of human activities on the environment, regulatory bodies for the automobile lubrication industry have set up strict guidelines for chemical compositions of their end products, including engine oils. This research work is a step towards development of a new class of lubricant additives, which are less harmful to the environment and, simultaneously, also reduce friction and …

A Standard Tensile Testing Procedure For Fiber-Reinforced Concrete (Frc) And Ultra-High-Performance Fiber-Reinforced Concrete (Uhp-Frc) Based On Double Punch Test (Dpt), Shuveksha Tuladhar

Civil Engineering Theses - Archive

Current test methods such as ASTM 1609, ASTM 1550 and direct tensile test are used for evaluating the mechanical properties of Fiber Reinforced Concrete (FRC) and to determine the quality of mixture in design and construction practice. These test methods show high variability in the results, requires large specimen and complicated test setup. An ideal material test method for FRC should give consistent results in determining mechanical properties such as peak strength and residual strengths. Moreover, current test methods are expensive and time-consuming as more specimens are needed to acquire reliable test results. Double Punch Test (DPT) is a simple, …

Portable 6 Lead 4 Electrode Ekg, Cody Magnuson, Wes Archbold

Electrical Engineering

This project focused on designing a small, portable, 6 lead 4 electrode electrocardiogram (EKG) machine with enough accuracy and resolution to successfully diagnose clinical issues. The electrical design used to measure signals originating from the heart can be broken up into three stages. The first stage is the human device interface. Next, is the analog block that filters out common mode noise and conditions the signal for digital encoding using instrumentation amplifiers, a right leg circuit, high pass, low pass, and an amplifier. This circuit filters all frequencies above and below the frequency band of meaningful data (1-160Hz), rejects signals …

Using Historic Pavement Performance Data To Identify And Select Sites For Asphalt Mixture Design Studies, Allyson Richey

Civil Engineering Undergraduate Honors Theses

Since 1997 Arkansas asphalt mixtures have been designed using a procedure commonly known as ‘Superpave’. In a traditional Superpave mix design, the design considers only traditional volumetric parameters; however, recent advances in mix design technology emphasize mixture’s ability to perform in its environment. There are numerous factors which affect the performance characteristics of an asphalt mix. Certainly, the asphalt binder’s performance is a critical variable in this system. Asphalt binders are sensitive to temperature, so much so that their primary parameter on which they are recommended is a function of both temperature and the geographic latitude in which the pavement …

Probability Of Success In Program Management, Tejas Pawar

Industrial, Manufacturing, and Systems Engineering Dissertations - Archive

The field of Program Management is subject to high program failures. The Project Management Institute (PMI) states that 74% of programs are executed unsuccessfully (Mulcahy, Rita). The high rate of program failures is primarily due to inadequate planning before a program begins and inadequate management of a program when it is being executed. To avoid these high failure rates, a Program Manager needs a tool to help him assess the Probability of Success (POS) of fully accomplishing the objectives of his program from the initial planning phase and throughout all phases of program execution. Purpose: The purpose of this research …

Energy Efficiency Measures In Oregon Instructional School Facilities Implemented Under Sb 1149, And Improved Student Performance, Virginia Saraswati, Timothy Hulseman, John Bauer

Engineering and Technology Management Faculty Publications and Presentations

Energy generation, transmission, and distribution, requires a costly infrastructure to meet increasing demand. The success of energy efficiency measures (EEM's) are largely based on cumulative energy and cost savings. This research attempts to add improved student learning to the list of benefits when implementing EEM's in instructional school facilities. Our literature review of current research demonstrates that maximizing natural daylight in the design of school buildings reduces energy consumption, as well as improves student performance [1]. Additionally, EEM's can benefit student performance through direct and indirect environmental improvements that enhance usability, productivity, and comfort [2]. Through statistical analysis of data …

Contextual Differentiation Of Absorptive Capacity: Empirical And Conceptual Development, Marina Dabic, Ernest Vlačić, Tugrul Unsal Daim

Engineering and Technology Management Faculty Publications and Presentations

This paper is focused on the research and operationalization of the absorption capacity in technology driven firms with a particular focus on their technology based innovation performances, which is widely recognised as a means of achieving and maintaining the firms' competitive advantage. Although research in the field of absorption capacity was globally initiated more than two and a half decades ago, the same was not at all the case with Eastern European firms. Considering that, the research objective of this paper arises: what is the level of the absorptive capacity in technology driven Croatian firms and how does it catalyse …

Technology Readiness Levels Improving R&D Management: A Grounded Theory Analysis, Joao Ricardo Lavoie, Tugrul Unsal Daim

Engineering and Technology Management Faculty Publications and Presentations

The strategic management of an organization is well understood and there are several different frameworks and methodologies available to develop and implement strategies that will put the organization on the right track and make it more competitive. Nevertheless, the ability to manage technology and to assess and choose the right technologies to be used and to be invested in is not that well understood and developed. The technology readiness is important to be measured and managed, so that organizations have the chance to make better decisions on which technologies to rely on and when. Technology Readiness Levels (TRL) is a …

Board Level Solder Joint Reliability Assessment Study Of Megtron 6 Vs Fr-4 Under Power Cycling And Thermal Cycling, Jyotirmoy Denria

Mechanical and Aerospace Engineering Theses - Archive

High frequency laminates like Nelco N4000-13, Isola FR408 and Panasonic Megtron 6 packages gained popularity among the industry due to better and improved electrical performances, Improved impedance control, low moisture absorption, good thermal management. High speed laminates are extensively used in high-speed system-level interconnects like high speed network equipment, mainframes, IC testers and high frequency measuring instruments. When an electronic device is turned off and then turned on multiple times, it creates a loading condition called power cycling. The die is the only heat source causing non-uniform temperature distribution. In this paper, the solder joint reliability assessment of Megtron 6 …

Some New Results For Equilibria Of N-Person Games, Ahmad Nahhas

Industrial, Manufacturing, and Systems Engineering Dissertations - Archive

In this dissertation, we present four journal articles in the area of game theory. In the first article, we define a generalized equilibrium for n-person normal form games. We prove that the Nash equilibrium and the mixed Berge equilibrium are special cases of the generalized equilibrium. In the second article, we study the computational complexity of finding a mixed Berge equilibrium in n-person normal form games. In particular, we prove that the problem is an NP-complete problem for n >= 3. In the third article, we give an interpretation of mixed strategies via resource allocation. Finally, in the fourth article, …

Automated Multistep Classifier Sizing And Training For Deep Learner, Kanishka Tyagi

Electrical Engineering Dissertations - Archive

Training algorithms for deep learning have recently been proposed with notable success, beating the start-of-the-art in certain areas like audio, speech and language processing. The key role is played by learning multiple levels of abstractions in a deep architecture. However, searching the parameters space in a deep architecture is a difficult task. By exploiting the greedy layer-wise unsupervised training strategy of deep architecture, the network parameters are initialized near a good local minima. However, many existing deep learning algorithms require tuning a number of hyperparameters including learning factors and the number of hidden units in each layer. Apart from this, …

Nearest Neighbor Classifiers With Improved Accuracy And Efficiency, Sinchan Bhattacharya

Electrical Engineering Theses - Archive

Nearest Neighbor algorithms are non-parametric algorithms that use distance measure techniques for classification and regressions. This thesis uses the method of pruning to improve accuracy and efficiency of a nearest neighbor classifier and also states the different stages the pruning algorithm can be applied and shows the best stage for pruning which gives the maximum accuracy. The performance of the classifier is shown to be better than other improved nearest neighbor classifiers. A fast method of finding the optimal k in a k-nearest neighbor classifier is proposed in the thesis. A method of optimizing the distance measure using a second …

Analytical Technique To Evaluate Impact Of Mutual Coupling On Transmission Line Protection Schemes, Azade Brahman

Electrical Engineering Theses - Archive

While there are numerous literatures that have addressed the impact of mutual coupling on the reliability and security of protection schemes and have provided possible mitigation solutions, there has not been adequate research and documentation presenting a comprehensive analytical approach to 1) estimate the magnitude of mutual coupling and 2) quantify the adverse impact of mutual coupling in real-life scenarios under several system faults across various types of protective elements. This should be considered as the first stage of any mutual coupling related study preceding the second stage in which the mitigation against mutual coupling is to be developed. The …

Bit-Rate Reduction Using Superpixel For 360-Degree Videos - Vr Application, Swaroop Krishna Rao

Electrical Engineering Theses - Archive

Superpixels are applied on the side views of the 2D projected video. Then the video is partitioned into Coding Tree Units (CTUs). The CTUs and the superpixels positions will be compared within the frame of video. During comparison, the following cases will be considered: Case-1: If two or more CTUs are covered by the same superpixel, then the CTUs will be merged into one large coding tree unit. This merged CTU will be called as Intra CTU. Case-2: If one CTU is covered by two or more superpixels, then it will be referred to as Boundary CTU. After finding the …

Implementation And Comparison Of Serial And Parallel Algorithms Of Sao In Hevc, Harsha Nagathihalli Jagadish

Electrical Engineering Theses - Archive

The High Efficiency Video Coding (HEVC) standard is the latest video coding project developed by the Joint Collaborative Team on Video Coding (JCT-VC) which involves the International Telecommunication Union (ITU-T) Video Coding Experts Group (VCEG) and the ISO/IEC Moving Picture Experts Group (MPEG) standardization organizations. HEVC also known as H.265 supports encoding videos with wide range of resolutions, starting from low resolution to beyond High Definition i.e. 4k or 8k. The HEVC standard is an optimization of the previous standard H.264/AVC (Advanced Video coding) which is a very well established and widely used standard in industry and finds its applications …

Steerable Antenna Array For Uav Applications, Varsha Vijaykumar

Electrical Engineering Theses - Archive

An antenna array system design, demonstrating the possible application on an unmanned aerial vehicle platform using a full wave electromagnetic simulation software is presented. Linear array of patches in E plane and H plane are designed consisting of 4 elements with a beam steering ability of ±40 degree from the broadside direction with a peak gain of 12.23dB. Further an arrangement illustrating four such linear arrays, that can switch between each other to cover the entire azimuth scanning is shown. After a series of modified patch antenna designs with an attempt to increase the gain, an inset fed microstrip patch …

Windows Server 2012, Fisnik Gojani

Theses and Dissertations

Windows Server 2012 R2 ka mbi 300 funksione të reja dhe është sistemi i parë i Microsoft Server që ka lidhje me cloud.

Windows Server 2012 paraqet një bollëk të veçorive të reja për të adresuar nevojat e evolucionit të një infrastrukture moderne IT dhe fuqisë punëtore. Bërthama e kësaj përvoje është nevoja për të shkallëzuar, virtualizuar dhe zhvendosur ngarkesat e punës, aplikacionet dhe shërbimet për cloud. Windows Server 2012 përfshin një përvojë te ndërtimit, administrimit dhe funksionimit të cloud private dhe publike, të gjitha të bazuara në Windows Server.

Windows Server 2012 siguron sigurinë e të dhënave të gjeneratës …

Organizimi Për Ndërtimin E Shkollës Fillore Në Damanek, Alban Saliaga

Theses and Dissertations

Tema shtjellon metodën e organizimit sa më cilësor të një vende punishte e cila gjendët në një fshat të vogël në Kosovën perëndimore në fshatin Damanek. Dedikimi i objektit është shkolle fillore që pritet ti shërbej për rreth 530 nxënëseve te fshatit.

Pjesa e organizimit të vende punishtes ka rëndësi të madhe sepse një organizim i mirëfilltë së pari parandalon aksidentet që mundë të ndodhin në vende punishte , shmang shpenzimet e panevojshme , rritë cilësinë dhe efikasitetin në ndërtimtari.

Organizimi i ndërtimit është specifik, pasi objektet janë unikate dhe me secilin objekt duhet riorganizuar punët, organizimi i ndërtimit është …

Krahasimi I Bazës Ligjore Vendore Me Direktivat E Be-Së Për Mbrojtje Dhe Siguri Në Punë Në Sektorin E Ndërtimi, Ndriçim Ademaj

Theses and Dissertations

Sektori i ndërtimtarisë vazhdon të jetë një ndër shtyllat kryesore të ekonomisë në Kosovë. Përkundër sfidave, ky sektor ka vazhduar të zgjerohet edhe gjatë krizave ekonomike dhe politike në Kosovë. Sektori i ndërtimtarisë vazhdon të jetë një ndër punëdhënësit më të mëdhenj në Kosovë për nga sektoret private, mirëpo siguria në fushën e ndërtimtarisë vazhdon të jetë një pikë e ndjeshme. Lëndimet e madje edhe aksidentet fatale në fushën e ndërtimtarisë vazhdojnë të ndodhin në numër të konsiderueshëm. Është më se normale që kompanitë ndërtimore të jenë të fokusuara në përfitime sa më të mëdha të mëdha financiare, por assesi …

Usa Boccia Ball Ramp For Athletes With Quadriplegia, Alissa A. Koukourikos, Matthew Lee, Nathan Bernards

Mechanical Engineering

In this report, the design process in creating an assistive device for Boccia Classification 3 (BC3) players is outlined. The initial research steps, including research into the rules of the game, capabilities of the players, and existing products is documented to show where ideas for the product stemmed from. This transitions into requirements that the sponsor requested, and preliminary designs and ideas for the product. Finally, this report explains the details of the final design, which has been analyzed for safety, ease of use, and ability to function under different conditions. The processes of manufacturing and testing will also be …

Geophysical Delineation Of Megaporosity And Fluid Migration Pathways For Geohazard Characterization Within The Delaware Basin, Culberson County, Texas, Jonathan David Woodard

Electronic Theses and Dissertations

ABSTRACT

Differential dissolution of gypsum karst within the Delaware Basin poses a significant threat to infrastructure that society depends on. The study area is located in Culberson County, Texas and traverses a distance of approximately 54 kilometers along RM 652 within the Gypsum Plain which is situated on the northern margin of the Chihuahua Desert and includes outcrops of Castile and Rustler strata that host karst geohazards. Regions of karst geohazard potential have been physically surveyed proximal to the study area in evaporites throughout the Castile Formation outcrop; minimal hazards, in comparison to the Castile Formation, have been documented in …

Real Time And High Fidelity Quadcopter Tracking System, Tyler Mckay Hall

Computer Engineering

This project was conceived as a desired to have an affordable, flexible and physically compact tracking system for high accuracy spatial and orientation tracking. Specifically, this implementation is focused on providing a low cost motion capture system for future research. It is a tool to enable the further creation of systems that would require the use of accurate placement of landing pads, payload acquires and delivery. This system will provide the quadcopter platform a coordinate system that can be used in addition to GPS.

Field research with quadcopter manufacturers, photographers, agriculture and research organizations were contact and interviewed for information …

The Design And Implementation Outcome Of An Online Undergraduate Thermodynamics Class, Dazhi Yang, Krishna Pakala

Educational Technology Faculty Publications and Presentations

Online learning is not common for most undergraduate core engineering courses. However, the growing need for online engineering courses necessitates the design and delivery of online courses that can allow for the flexibility and convenience the distance learning experiences can offer. Thermodynamics is among the most difficult engineering subjects to teach, especially online, where instructors are unable to demonstrate the overwhelming number of equations and applications as they would in face-to-face lectures. This paper describes the design and development of an online, undergraduate thermodynamics class. It reports the implementation outcome of student final course grade and the students’ learning experience …

Investigating Fate Of Silver Nanoparticles In Wastewater Biofilms, Connie Marie Walden

Graduate Theses and Dissertations

As industrial advances make everyday life easier for human kind, the processes by which we need to maintain sanitary conditions for both water and wastewater treatment will become increasingly complex. Innovations in food packaging and textile design incorporate engineered nanoparticles (ENPs) to increase antimicrobial properties of clothing, maintain product color, and keep food in packaging from spoilage. For most products, ENPs released will enter the sanitary sewer system, and ultimately wastewater treatment plants. Biofilms grow universally on surfaces where a protective layer of extracellular polymeric substances (EPS) shields attached cells from stressors. In wastewater treatment, complex biofilms are utilized as …

Effects Of Climatic Loading In Flexible Pavement Subgrades In Texas, Asif Ahmed

Civil Engineering Dissertations - Archive

Expansive soils, which have been reported as a worldwide problem, cover 25% of the United States. Due to the swelling and shrinkage behavior induced by moisture variations, expansive soil contributes to volumetric deformation, which in turn affects the stability and performance of structures. The Texas Department of Transportation (TxDOT) allocates 25% of its budget to pavement maintenance and repairs, much of which is triggered by expansive soil. In order to decrease the burden of this expense on maintenance authorities, it is necessary to have an accurate understanding of expansive subgrade behavior. Applying this knowledge to the pavement design and construction …

Non-Destructive Evaluation Of Soil Moisture In Evapotranspiration Cover System, Md Ishtiaque Hossain

Civil Engineering Dissertations - Archive

A conventional landfill cover system is designed as a barrier layer system, with low hydraulic conductivity, to minimize the percolation of water from the cover to the waste. Evapotranspiration (ET) covers are currently becoming a popular alternative that are acceptable to landfill authorities, due to their cost effectiveness and nature-friendly performance. The principle function of the ET cover is to store the infiltrated water, using the water balance technique, until it is transpired by plants into the atmosphere, thus minimizing percolation. The performance of the final cover system is assessed by monitoring the soil moisture in the ET cover and …

Wireless Power Transfer Roadway Integration, Trevor Gardner

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Electric vehicles represent a major accomplishment in the energy and transportation industry. Unfortunately, they are restricted to a small travel range because of limited battery life. Successful integration of wireless power transfer (WPT) systems into the infrastructure would remove the range restrictions of EVs. To successfully integrate this technology, several requirements must be met. First, the embedment process cannot interfere with the electrical performance of the inductive power transfer (IPT) system. Second, the presence of the IPT system in the pavement structure cannot negatively affect the roadway’s lifespan.

Several systems were directly embedded in roadway materials. The electrical properties of …

Longitudinal Thermal And Solute Dynamics In Regulated Rivers, Muhammad Rezaul Haider

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Dam releases increase river stage and can reverse groundwater movement into and out of the river. As the flood, thermal, and solute waves travel downstream in a regulated river, the size of the waves is anticipated to be affected both by river processes and exchanges with near river groundwater. This study established a modeling framework to quantify the influences of the groundwater exchanges on the temperatures and solute concentration dynamics along regulated rivers. The wave properties, volume of exchanges, conservative solute mass exchanges, and heat energy exchanges were calculated as a function of time and distance downstream. Results show that …

Water Surface Impact And Ricochet Of Deformable Elastomeric Spheres, Randy Craig Hurd

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Soft and deformable silicone rubber spheres ricochet from a water surface when rigid spheres and disks (or skipping stones) cannot. This dissertation investigates why these objects are able to skip so successfully. High speed cameras allow us to see that these unique spheres deform significantly as they impact the water surface, flattening into pancake-like shapes with greater area. Though the water entry behavior of deformable spheres deviates from that of rigid spheres, our research shows that if this deformation is accounted for, their behavior can be predicted from previously established methods. Soft spheres skip more easily because they deform significantly …

Enhancing Ductility Of One-Way Concrete Slabs Reinforced With Welded Wire Reinforcement, Mohamed K. Shwani

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A series of research studies have recently identified an issue called strain localization in welded wire reinforced (WWR) members. This phenomenon reportedly concentrates strains at welded cross wire locations and severely limit ductility. Those that identified the phenomenon used it to imply that WWR is unsafe because it does not warn of failure. This dissertation is investigating details to mitigate the strain localization effect and demonstrate the WWR can be used safely. A moment curvature analysis is developed using Response2000 program and calibrated using experimental data. Parametric study was developed to present a recommendation of details and minimum reinforcement required …