Digital Commons Network^™

Tractor Power Hop: Wheel Normal Reaction Analysis, Siyuan Hunter Zhang, Vladimir Vantsevich

Early Career Technical Journal (ECTJ)

Section 2: Design & Manufacturing; pp. 38-41

Numerical Investigation Of Shock Wave Propoagtion In Biomineralized Fish Scale, Matthew Nelms, Wayne Hodo, A M. Rajendran

Early Career Technical Journal (ECTJ)

Section 3: Materials; pp. 90-94

Hierarchical Grouping In Particle Swarm Optimization – Hgpso, Sanjay Sarma O V, Ramana M. Pidaparti, Ankita Joshi

Early Career Technical Journal (ECTJ)

Section 4: Materials; pp. 97-103

Comparison Of Stop Sign Distance Detection Using 2d And 3d Cameras, Mahbubul Islam, Kevin Mcfall

Early Career Technical Journal (ECTJ)

Section 5: Miscelleneous; pp. 127-130

A Mesoscale-Based Homogenization Study Of Sand Using The Discrete Element Method, Gerald Pekmezi, David Littlefield

Early Career Technical Journal (ECTJ)

Section 4: Materials; pp. 104-111

Porous Fe Layered Alumina Channel For Chemical Looping Combustion Micro-Reactors, Bodiuzzaman Jony, Rajagopalan Varadarajan Ranganathan, Mruthunjaya Uddi

Early Career Technical Journal (ECTJ)

Section 6: Thermal Sciences; pp. 168-174

A 3-D Finite Element Model Of The Synthesis, Degradation, And Spatial Spread Of Camp, S Shettleworth, K J. Webb, A V. Phan, T C. Rich

Early Career Technical Journal (ECTJ)

Section 4: Materials; pp. 112-116

Drop Tower Data Filtration Validation, L Lisenbee, David L. Littlefield

Early Career Technical Journal (ECTJ)

Section 2: Design & Manufacturing; pp. 33-37

Cfd Simulation Of Fluid Accumulation In Normal And Injured Alveolar Sacs Models, Parya Aghasafari, Sommer Ihab Anjum, Ramana Pidaparti

Early Career Technical Journal (ECTJ)

Section 1: Bio-Medical/Bioengineering; pp. 15-21

Decision Making Of Environmental Engineers On Project Selection, Millicent Amanda Davis

Walden Dissertations and Doctoral Studies

Some environmental engineers do not understand how to perceive profitable opportunities in redeveloping the large number of contaminated brownfield sites in New Jersey. The purpose of this qualitative exploratory case study was to find effective decision-making strategies that help environmental engineers acquire profitable environmental redevelopment projects. The target population consisted of 4 environmental engineers in an environmental organization in Camden County, New Jersey who possessed proven decision-making strategies that helped them acquire profitable environmental redevelopment projects in the past 5 years. The conceptual framework for this study was the multiple criteria decision method (MCDM). Semistructured interviews were conducted with the …

Distributed Rule-Based Ontology Reasoning, Raghava Mutharaju

Browse all Theses and Dissertations

The vision of the Semantic Web is to provide structure and meaning to the data on the Web. Knowledge representation and reasoning play a crucial role in accomplishing this vision. OWL (Web Ontology Language), a W3C standard, is used for representing knowledge. Reasoning over the ontologies is used to derive logical consequences. A fixed set of rules are run on an ontology iteratively until no new logical consequences can be derived. All existing reasoners run on a single machine, possibly using multiple cores. Ontologies (sometimes loosely referred to as knowledge bases) that are automatically constructed can be very large. Single …

Customizable 3-D Virtual Gi Tract Systems For Locating, Mapping, And Navigation Inside Human Gastrointestinal Tract, Megha Dattatrey Dalvi

Browse all Theses and Dissertations

One of the critical challenges of wireless capsule endoscopy examination is to find the exact position of the capsule in the Gastrointestinal Tract (GI) tract so as to correctly and accurately spot the position of the intestinal diseases. Creating a 3D virtual GI tract system could significantly improve the capsule endoscopy operations. The virtual human model, such as the BioDigital Human, has been credited as Google Earth for the human body, which provides us medically accurate virtual body and organ structures. However, it only assembles a “Standard” human body. The problem is: there is only one earth, but billions of …

Augment Hololens’ Body Recognition And Tracking Capabilities Using Kinect, Krishna Chaithanya Mathi

Browse all Theses and Dissertations

In this thesis, we are primarily interested in exploring the HoloLens technologies for medical practices. Particularly, we will address the limitation of HoloLens’ capability in human body sensing, recognition and tracking. We will then introduce and demonstrate the use of Kinect to augment HoloLens’ sensory and processing capabilities in order to produce time and space-synchronized immersive environment with both virtual body and real body of the same patient for supporting distributed medical collaborations. Specifically, we are looking at a distributed solution in which we are collecting the patient body data from Kinect, followed by body recognition and position/motion tracking processing …

Novel Cost And Space Efficient Range Of Motion And Gait Analysis Systems, Rutvik Bharatkumar Patel

Browse all Theses and Dissertations

In this thesis, we have explored the use of the latest motion tracking technologies, as evident by Microsoft Xbox Kinect’s motion tracking capabilities, in combination with 3D digital human modeling and animation, multi-modality image capturing and processing, and fusion, to design a new generation of low-cost range of motion and gait analysis solutions that overcome the limitation of existing tools. The proposed solutions and our prototype systems have demonstrated accurate measurements and reliable analysis outcome compared to current clinic practices, with significantly reduced complexity and cost. Furthermore, it eliminates the need for expensive effort for pre- and post- processing of …

Spatio-Temporal Kronecker Compressive Sensing For Traffic Matrix Recovery, Dingde Jiang, Laisen Nie, Zhihan Lv, Houbing Song

Faculty & Staff Scholarship

No abstract provided.

Design And Evaluation Of The Impact Of A Multi-Agent Control System (Framework) Applied To A Social Setting, Perez Antonio Perez

Open Access Theses & Dissertations

The objective of this research is to design and analyze the performance of a new mechanism to improve the advising of students in a nontraditional environment. This nontraditional environment includes: a minority serving, commuter campus with a high percentage of transfer students. Specifically, these demographics are unable to keep a tightly controlled cohort of students flowing through to the completion of the curriculum. Students in these circumstances usually have varied course loads and competing priorities due to family and financial needs or other societal responsibilities. Therefore, there is a need for an individualized approach to advising.

University administrations face challenges …

Characterizing Far-Infrared Laser Emissions And The Measurement Of Their Frequencies, Michael Jackson, Lyndon R. Zink

All Faculty Scholarship for the College of the Sciences

The generation and subsequent measurement of far-infrared radiation has found numerous applications in high-resolution spectroscopy, radioastronomy, and Terahertz imaging. For about 45 years, the generation of coherent, far-infrared radiation has been accomplished using the optically pumped molecular laser. Once far-infrared laser radiation is detected, the frequencies of these laser emissions are measured using a three-laser heterodyne technique. With this technique, the unknown frequency from the optically pumped molecular laser is mixed with the difference frequency between two stabilized, infrared reference frequencies. These reference frequencies are generated by independent carbon dioxide lasers, each stabilized using the fluorescence signal from an external, …

A Predictive Correlation Study: What Human Capital And Demographic Factors Relate To Credential Completion For Stem Students?, Rick Jenkins

Doctoral Dissertations and Projects

This dissertation examines the educational attainment of college STEM (Science, Technology, Engineering, and Mathematics) students in Arkansas in an attempt to identify the human capital factors that predict completion of a STEM degree or certificate. Students seeking STEM credentials (having STEM majors) were identified using the state higher education database from the state of Arkansas, including public four-year universities and two-year colleges. STEM students from 32 colleges and universities were included from three cohorts and tracked for six academic years. The criterion variable was STEM credential earned, whether or not the student earned any STEM undergraduate credentials. The predictor human …

Designing For Immersive Technology: Integrating Art And Stem Learning, Jane Elizabeth Crayton

Art & Art History ETDs

Students struggle to learn STEM concepts. The arts have been proposed as a means to engage students in STEM education, resulting in the idea of STEAM. However, STEAM approaches do not always result in learning. A collaboration between a major research university and a small Native arts college in the southwestern United States provided an opportunity for studying the potential for arts to engage students in STEM learning. This study investigates how participating art students (N = 4) solved technological and design production problems when working with immersive technologies in a paid summer internship program. The internship program lasted six …

Fuzzy Logic And Neural Networks - A Glimpse Of The Future, Raymond Manley

The ITB Journal

In 1965 Lofti Zadeh published his paper on fuzzy set theory , putting it forward as a way of more closely realising the human thought process. Many systems developed to aid human activities have been based on definitive , yes/no, type decision making processes. An example is the way all computers are based on the binary logic system where only two possible and separate logic levels are allowed, a logic 1 or logic 0. However, we know from everyday experience that humans think in terms of vague linguistic categories, for example, the weather is fairly good today. "Fairly good" represents …

Ambiguity In Speaking Chemistry And Other Stem Content: Educational Implications, Mick D. Isaacson, Michelle Michaels

Journal of Science Education for Students with Disabilities

Ambiguity in speech is a possible barrier to the acquisition of knowledge for students who have print disabilities (such as blindness, visual impairments, and some specific learning disabilities) and rely on auditory input for learning. Chemistry appears to have considerable potential for being spoken ambiguously and may be a barrier to accessing knowledge and to learning. Educators in chemistry may be unaware of, or have limited awareness of, potential ambiguity in speaking chemistry and may speak chemistry ambiguously to their students. One purpose of this paper is to increase awareness of potential ambiguity in speaking chemistry and other STEM fields …

Designing And Implementing A Planetary Geology Course For Engineers At The Jet Propulsion Lab, Jessica Joyce Dimizio

STAR Program Research Presentations

This project took place at NASA’s Jet Propulsion Laboratory (JPL) and involved creating an instructional tool that would increase the quality of communication between mechanical engineers and geologists who are collaboratively designing ways to collect and cache martian rock samples for the Mars 2020 rover mission. Geology and engineering do not cross paths in traditional education settings and communication is difficult due to the specialized language and processes of geology. Previous attempts to bridge communications between these two groups did not serve a large enough audience nor were they specific to the complexities of the Mars 2020 mission. Interviews with …

Work Integrated Learning In Stem In Australian Universities: Final Report: Submitted To The Office Of The Chief Scientist, Daniel Edwards, Kate Perkins, Jacob Pearce, Jennifer Hong

Higher education research

The Australian Council for Educational Research (ACER) undertook this study for the Office of the Chief Scientist (OCS). It explores the practice and application of Work Integrated Learning (WIL) in STEM, with a particular focus on natural and physical sciences, information technology, and agriculture departments in Australian universities. The project involved a detailed ‘stocktake’ of WIL in practice in these disciplines, with collection of information by interview, survey instruments, consultation with stakeholders and literature reviews. Every university in Australia was visited as part of this project, with interviews and consultation sessions gathering insight from more than 120 academics and support …

Development Of A Novel Portable Signal Acquisition Device For Use In Local Mining Industrial Applications, Jacob Walker

Honors Theses

No abstract provided.

The Effects Of Gender, Race, And Grade Level On Interest, Relevance, And Perceived Confidence In Science Among Middle School Students In The Deep South, Jennifer Carruth

Theses and Dissertations

This study looks at middle school students’ attitudes toward three dimensions of perceptions of science (interest, relevance, and competence) and compares student attitudes by gender, age, and race. These measures are expected to reflect the varying potential of these students’ interest in pursuing careers in STEM. A sample of 719 students in East-Central Mississippi were asked to rate their level of agreement with statements taken from common surveys for measuring attitudes towards science, the Test of Science Related Attitudes 2 (TOSRA 2) and the Views on Science and Education (VOSE) questionnaires. Logistic regression analyses showed that age is a more …

Engineering Creativity: Differences In Creative Problem Solving Stages Across Domains, Lamies J. Nazzal

Doctoral Dissertations

There is a growing call for enhancing creativity in engineering education. However, research indicates that most higher education institutions still lack the needed criteria for providing students with real-world experience that will hone their creative problem solving skills. Creating such environments requires a deeper understanding of different facets of engineering creativity. One key question is how engineering students across related disciplines demonstrate different strengths across the stages of the creative problem solving process. To study this issue, a sample of 505 engineering students was recruited from one northeastern university. Using the analysis of covariance statistical technique, this study compared engineering …

Uno Stem Annual Report 2015, Uno Stem Leadership Team

Student Learning

The following document is a brief Annual Report for the STEM Priority at UNO as of May 1, 2015. The document builds upon past strategic planning discussions, meetings,and conversations and aligns with the UNO STEM Strategic Plan, as first published in the Fall of 2013. It is important to note that the annual report is essentially a“work in progress” and will be continually refined during the next year and updated as initiatives progress. It is also a “springboard” for a continued and strategic review of our local STEM statistics and the professional literature on STEM learning, and it serves as …

African American Female Engineering Students' Persistence In Stereotype-Threatening Environments: A Critical Race Theory Perspective, Stacie Lesure Gregory

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

African American women are grossly underrepresented in engineering. Despite their low representation in engineering colleges, some are able to persist and earn their degrees. This qualitative study sought to better understand the strategies 10 African American women employed to help them remain resilient in engineering degree programs. For this investigation, there was an underlying assumption that African American women who persist in engineering must contend with stereotype threat. Stereotype threat is a psychosocial phenomenon in which people in stigmatized social categories fear confirming negative stereotypes about their group.

Ten African American female women who have persisted in engineering degree programs …

Persistence Of Engineering Undergraduates At A Public Research University, Matthew Meyer

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This mixed-methodological study determined which factors contributed to undergraduate student attrition, and evaluated reasons ten undergraduate engineering students failed to complete their engineering degree at a major western research university. Institutional data were collected on engineering students over a multi-year period. These data were separated into groups of engineering students who persisted to the Junior year of their undergraduate engineering program (persisters), and those students who left their engineering program before their Junior year (nonpersisters). A quantitative analysis comparing these two groups of students uncovered significant predictors of persistence/nonpersistence in the engineering program. Qualitative inquiry was used to identify factors …

The Impact Of Project Lead The Way Gateway To Technology Foundation Unit Completion On Students' Critical-Thinking Skills, Rula Odai Hashem

Master's Theses and Doctoral Dissertations

Georgetown's Public Policy Institute (2013) reported that the fastest growing occupations and the highest demand for college education and training fields will be in Science, Technology, Engineering, Mathematics (STEM), healthcare, and community services. One of the K-12 Science, Technology, Engineering, and Mathematics (STEM) programs' purposes is to promote critical-thinking skills (Johnson, 1992). This study examined the impact of Project Lead The Way Gateway to Technology (PLTW-GTT) units, a middle school STEM program, on the critical-thinking skills of middle school students. Quasi experimental research methods were utilized to test the impact of the completion of two PLTW-GTT foundation units on students' …