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16. Statistics, Southwestern Oklahoma State University Mar 2020

16. Statistics, Southwestern Oklahoma State University

Oklahoma Research Day Abstracts

No abstract provided.


14. Physics, Southwestern Oklahoma State University Mar 2020

14. Physics, Southwestern Oklahoma State University

Oklahoma Research Day Abstracts

No abstract provided.


Combining Technology And Human Interaction In Stem Through Innovation To Drive Passion For The Next Generation Of Aviation Professionals, Linda Weiland M.A.S., M.B.A., Bettina Mrusek Ph.D., Girls Fly Programme Africa Foundation, Naco Netherlands Airport Consulting Organization South Africa Mar 2020

Combining Technology And Human Interaction In Stem Through Innovation To Drive Passion For The Next Generation Of Aviation Professionals, Linda Weiland M.A.S., M.B.A., Bettina Mrusek Ph.D., Girls Fly Programme Africa Foundation, Naco Netherlands Airport Consulting Organization South Africa

National Training Aircraft Symposium (NTAS)

Progress on inspiring girls into Science, Technology, Engineering and Mathematics (STEM) careers has been extremely slow considering the efforts made and the fact that girls make up 50% of the population. This issue is complex and many different approaches have been done of over the last 40 years. Leveraging virtual education technology Embry-Riddle Aeronautical University Worldwide’s Women in Aviation International Chapter developed a Massive Online Open Course (MOOC) geared towards girls and boys between the ages of 8 and 14. There are barriers in schools and limitations to career development because of a lack of awareness; the MOOC sought to …


Organizational Design Of Secondary Aviation/Aerospace/Engineering Career Education Programs, Susan Kelly Archer Mar 2020

Organizational Design Of Secondary Aviation/Aerospace/Engineering Career Education Programs, Susan Kelly Archer

Doctoral Dissertations and Master's Theses

Modern nations operate within a global economy, relying heavily on the aviation industry for efficient and effective transportation of passengers and goods. The Boeing 2018 Pilot and Technical Outlook Report indicated that over the next 20 years, the aviation industry will need almost two and a half million new aircrew and maintenance employees to meet anticipated global demand. The industry will also need engineers, aviation managers, and workers in other aviation and aerospace disciplines. Aviation and aerospace jobs require solid backgrounds in mathematics, science, and technology; the development of pre-college aviation / aerospace / engineering career education programs would presumably …


John Houbolt: The Unsung Hero Of The Apollo Moon Landings, William F. Causey Mar 2020

John Houbolt: The Unsung Hero Of The Apollo Moon Landings, William F. Causey

Purdue University Press Book Previews

In May 1961, President Kennedy announced that the United States would attempt to land a man on the moon and return him safely to the earth before the end of that decade. Yet NASA did not have a specific plan for how to accomplish that goal. Over the next fourteen months, NASA vigorously debated several options. At first the consensus was to send one big rocket with several astronauts to the moon, land and explore, and then take off and return the astronauts to earth in the same vehicle. Another idea involved launching several smaller Saturn V rockets into the …


Working Across Disciplines And Library Units To Develop A Suite Of Systematic Review Services For Researchers, Nedelina Tchangalova, Eileen G. Harrington, Stephanie Ritchie, Sarah Over, Jodi Coalter Feb 2020

Working Across Disciplines And Library Units To Develop A Suite Of Systematic Review Services For Researchers, Nedelina Tchangalova, Eileen G. Harrington, Stephanie Ritchie, Sarah Over, Jodi Coalter

Collaborative Librarianship

Since their inception in the health sciences field, systematic reviews have expanded into many other subject disciplines. To address this growing need, subject librarians at the University of Maryland Libraries collaborated on a pilot program in three phases to introduce researchers to the process of conducting systematic and scoping reviews. This article describes the development of various collaborative efforts leading to the implementation of a systematic review service based on participant feedback. Assessment and evaluation techniques are shared to encourage further refinement of the systematic review service.


Stem On A Budget 2.0: A Basic Guide For Teaching Stem In Ops Afterschool Programs, Tyrome Williams Feb 2020

Stem On A Budget 2.0: A Basic Guide For Teaching Stem In Ops Afterschool Programs, Tyrome Williams

Criss Library Faculty Publications

This guide was written with the goal of providing a rough lesson plan, which could act as a supplemental guide for sustainable activities in order to better serve their students and children in the Omaha area. The STEM lessons I chose in this guide are engaging, hold educational value, and are cost effective if used properly. This book contains valuable information to supplement STEM learning. Whether you’re a teacher, instructor, supervisor for children, or a substitute; you will always be the most valuable asset in your classroom. This is a free use document and should not be sold for any …


Liability Of The Structural Engineer: Establishing, Quantifying, And Managing Risks, Justin Thomas Ittmann Jan 2020

Liability Of The Structural Engineer: Establishing, Quantifying, And Managing Risks, Justin Thomas Ittmann

LSU Doctoral Dissertations

Liability is an important topic to all practicing professionals—including practicing engineers. However, the topic of liability does not receive the necessary attention required relative to other professions. Further, engineers that desire to learn more about liability in relation to their practice do not have many university options within an engineering curriculum or from outside materials available to a non-legally trained engineer. The goal of the study is to provide a comprehensive overview of liability directed towards an intelligent practicing engineer, while avoiding unnecessary over-simplification of the material. This study initially provides an in depth survey of the legal standard of …


Early Engineering Experience (E3) Initiative, Danielle Nicole Carter, Rafael E. Landaeta Jan 2020

Early Engineering Experience (E3) Initiative, Danielle Nicole Carter, Rafael E. Landaeta

Engineering Management & Systems Engineering Faculty Publications

This Work in Progress paper details an initiative designed to broaden exposure and attract increased interest in the study of engineering of a minority-serving institution (MSI) with a plurality of races represented. The University's student population where this initiative is being implemented consists of 26.2% African American and 6% that identify with two or more races. In contrast, the College of Engineering in this University is 20% African American; the freshmen class makes up 6.3% of this figure. By USDOE standards, this characterization is indicative of a predominantly white institution (PWI). According to the Bureau of Labor Statics, underrepresented minorities …


Culturally Responsive Leadership And Distributed Leadership Practices In A Stem School, Cynthia Bradley Jan 2020

Culturally Responsive Leadership And Distributed Leadership Practices In A Stem School, Cynthia Bradley

Walden Dissertations and Doctoral Studies

Culturally responsive leadership practices and distributed leadership are strategies that could aid racially diverse students to become successful in STEM courses and later in a STEM field. The purpose of this study was to explore culturally responsive leadership practices and distributed leadership within a STEM school to support racially diverse students. Distributed leadership and culturally responsive leadership practices were the conceptual frameworks of the study used to explore the rationale for the decision-making within a school. The research questions addressed the challenges and opportunities of implementing culturally responsive leadership practices and distributive leadership to enhance the diversity of students in …


Grit And Female Graduates’ Experiences In Engineering And Computer Science Programs, Jennifer Ilene Watson Jan 2020

Grit And Female Graduates’ Experiences In Engineering And Computer Science Programs, Jennifer Ilene Watson

Walden Dissertations and Doctoral Studies

Institutions have implemented recruitment and retention initiatives in science, technology, engineering, and mathematics (STEM) degree programs; however, gender disparity of women in engineering and computer science programs persists. The purpose of this qualitative phenomenological study was to explore the lived experiences of female graduates from engineering and computer science programs. The conceptual framework was the theory of grit to explore how female students sustained their passion and perseverance through obstacles and adverse situations. Data were gathered through semistructured interviews with 17 female participants who graduated from engineering and computer science programs in the United States. Data were analyzed through a …


Disaster Damage Categorization Applying Satellite Images And Machine Learning Algorithm, Farinaz Sabz Ali Pour, Adrian Gheorghe Jan 2020

Disaster Damage Categorization Applying Satellite Images And Machine Learning Algorithm, Farinaz Sabz Ali Pour, Adrian Gheorghe

Engineering Management & Systems Engineering Faculty Publications

Special information has a significant role in disaster management. Land cover mapping can detect short- and long-term changes and monitor the vulnerable habitats. It is an effective evaluation to be included in the disaster management system to protect the conservation areas. The critical visual and statistical information presented to the decision-makers can help in mitigation or adaption before crossing a threshold. This paper aims to contribute in the academic and the practice aspects by offering a potential solution to enhance the disaster data source effectiveness. The key research question that the authors try to answer in this paper is how …


Joint Shelf Design And Shelf Space Allocation Problem For Retailers, Hakan Gecili Jan 2020

Joint Shelf Design And Shelf Space Allocation Problem For Retailers, Hakan Gecili

Browse all Theses and Dissertations

Although the retail business has been exploring innovative ways to engage shoppers, the COVID-19 pandemic has sped up their effort. Because of its unique benefits, physical stores will continue to remain an integral part of the overall retail business. However, to stay competitive, retailers will be forced to effectively utilize their available space in physical store (and even reduce it if need be), while offering a reasonably large assortment of products on their shelves. For many such retailers, the design of planograms – visual representation of products on shelves – is still driven by prior experience and intuition. Further, existing …


A Tutorial And Future Research For Building A Blockchain-Based Secure Communication Scheme For Internet Of Intelligent Things, Mohammad Wazid, Ashok Kumar Das, Sachin Shetty, Minho Jo Jan 2020

A Tutorial And Future Research For Building A Blockchain-Based Secure Communication Scheme For Internet Of Intelligent Things, Mohammad Wazid, Ashok Kumar Das, Sachin Shetty, Minho Jo

Computational Modeling & Simulation Engineering Faculty Publications

The Internet of Intelligent Things (IoIT) communication environment can be utilized in various types of applications (for example, intelligent battlefields, smart healthcare systems, the industrial internet, home automation, and many more). Communications that happen in such environments can have different types of security and privacy issues, which can be resolved through the utilization of blockchain. In this paper, we propose a tutorial that aims in desiging a generalized blockchain-based secure authentication key management scheme for the IoIT environment. Moreover, some issues with using blockchain for a communication environment are discussed as future research directions. The details of different types of …


Gold/Qds-Embedded-Ceria Nanoparticles: Optical Fluorescence Enhancement As A Quenching Sensor, Nader Shehata, Effat Samir, Ishac Kandas Jan 2020

Gold/Qds-Embedded-Ceria Nanoparticles: Optical Fluorescence Enhancement As A Quenching Sensor, Nader Shehata, Effat Samir, Ishac Kandas

Electrical & Computer Engineering Faculty Publications

This work focuses on improving the fluorescence intensity of cerium oxide (ceria) nanoparticles (NPs) through added plasmonic nanostructures. Ceria nanoparticles are fluorescent nanostructures which can emit visible fluorescence emissions under violet excitation. Here, we investigated different added plasmonic nanostructures, such as gold nanoparticles (Au NPs) and Cadmium sulfide/selenide quantum dots (CdS/CdSe QDs), to check the enhancement of fluorescence intensity emissions caused by ceria NPs. Different plasmonic resonances of both aforementioned nanostructures have been selected to develop optical coupling with both fluorescence excitation and emission wavelengths of ceria. In addition, different additions whether in-situ or post-synthesis have been investigated. We found …


Quadrotor Uav Flight Control With Integrated Mapping And Path Planning Capabilities, Jason A. Gauthier Jan 2020

Quadrotor Uav Flight Control With Integrated Mapping And Path Planning Capabilities, Jason A. Gauthier

Browse all Theses and Dissertations

Quadrotor UAVs have become a common and easily acquirable hardware platform for research and development with control laws, mapping systems, and path planning. In this research, a non-linear model of a quadrotor UAV is linearized with model parameters being identified using collected flight data. The PID, LQR, and backstepping control laws are implemented. An adaptive control law is also implemented to handle the loss of effectiveness in motor actuation. Additionally, this research also implements a laser-based SLAM algorithm for mapping and localization in an unknown two-dimensional environment. Path planning and obstacle avoidance algorithms are implemented onboard using the Robot Operating …


Mini Baja Frame Analysis, Jacob Swanson Jan 2020

Mini Baja Frame Analysis, Jacob Swanson

Williams Honors College, Honors Research Projects

The purpose of our senior design project is to optimize the Baja frame to reduce its weight and material cost while keeping the required rigidity. Through force analysis we will be able to determine if any rigidity is lost by removing a set of tubes (figure 1), along with the other forces seen by the frame. If it is found that the frame rigidity is still within the determined factor of safety, 2, then we will be able to reduce the frame weight and the number of tubes that make up the frame. Along with force analysis, we will use …


Ideal Lacrosse Stick, Josh Beck, Tyler Skoloda, Noah Reed, Stanley Dembosky Jan 2020

Ideal Lacrosse Stick, Josh Beck, Tyler Skoloda, Noah Reed, Stanley Dembosky

Williams Honors College, Honors Research Projects

This project is focused on the design of a new and innovative lacrosse stick. Our main points of focus will be the strength and durability of the head. As well as solving some of the problems that exist in existing equipment. These problems were identified by interviewing experienced players at the college level. Benefits would include a stronger head that is easier to use for a player on the field to do things like pass, catch, shoot, and field ground balls in an optimal manner. Normally players will have to purchase new heads every season as a result of warping …


A Survey Of Education In Civil Engineering, Tyler Fuller Jan 2020

A Survey Of Education In Civil Engineering, Tyler Fuller

Williams Honors College, Honors Research Projects

This paper provides an overview of the current education requirements in the field of civil engineering. This is achieved through means of an anonymous survey sent to civil engineering academics and data gathered from the published curricula of ten existing civil engineering programs. These ten programs were selected by means of a random number generator from the list of institutions the survey was sent to. Such an overview is important for gauging the effectiveness of civil engineering education for current and future students.


Tabletop Mechanical Tester, Jamie Dombroski, Brian English, Richard Leffler, Andrew Shirk Jan 2020

Tabletop Mechanical Tester, Jamie Dombroski, Brian English, Richard Leffler, Andrew Shirk

Williams Honors College, Honors Research Projects

The need for hands-on and face-to-face experiences in the engineering classroom is very great. The equations, principles, and concepts can all be learned, but without the visual and tactile application, these don’t always sink in or become concrete. A small-scale tensile test machine was designed, sourced, manufactured, and tested for the purpose of being applied in classroom settings to provide this experience to engineering students. Extensive research was performed concerning tensile machines on the market, the essential elements of which are the load cell, grips, crosshead, extensometer, motor, and frame. The raw materials for the frame were purchased and drawings …


Hierarchical Hybrid Materials From Flexible Fabric Substrates, Wenhu Wang Jan 2020

Hierarchical Hybrid Materials From Flexible Fabric Substrates, Wenhu Wang

Browse all Theses and Dissertations

The goal of this project is to investigate fabrication approaches and structure-property relationships of porous and flexible hierarchical hybrid solids suitable for advanced surface-active devices. Multi-scale hierarchical carbon materials are being fabricated by strong covalent attachment of multiwall carbon nanotube(MWCNTs) arrays on flexible carbon fabric substrates in order to enhance the surface area per unit volume. This was done using chemical vapor deposition (CVD) after functionalizing the surface with a plasma-derived nano-oxide coating. Structural and chemical characterization is performed using scanning electron microscope(SEM), energy dispersive spectroscopy(EDS) and x-ray photoelectron spectroscopy(XPS). Surface area estimates have been made by building structural models …


Optimization Study Of A Combined Wind-Solar Farm For A Specified Demand, Venkat Siddhartha Rama Jan 2020

Optimization Study Of A Combined Wind-Solar Farm For A Specified Demand, Venkat Siddhartha Rama

Browse all Theses and Dissertations

At the present time, using wind and solar energy for producing electricity in the United States is becoming cost competitive. According to Lazard’s 2019 [36] levelized cost of energy (LCOE) analysis of a number of energy sources used for producing electricity in the United States, wind and solar are cheaper than natural gas and coal. While capital, maintenance, operation, and fuel costs are included in LCOE numbers, energy source intermittency is not. Intermittency is an important issue with wind and solar energy sources, but not with natural gas or coal energy sources. Combining wind and solar energy sources into one …


Adaptive Multi-Fidelity Modeling For Efficient Design Exploration Under Uncertainty, Atticus J. Beachy Jan 2020

Adaptive Multi-Fidelity Modeling For Efficient Design Exploration Under Uncertainty, Atticus J. Beachy

Browse all Theses and Dissertations

This thesis work introduces a novel multi-fidelity modeling framework, which is designed to address the practical challenges encountered in Aerospace vehicle design when 1) multiple low-fidelity models exist, 2) each low-fidelity model may only be correlated with the high-fidelity model in part of the design domain, and 3) models may contain noise or uncertainty. The proposed approach approximates a high-fidelity model by consolidating multiple low-fidelity models using the localized Galerkin formulation. Also, two adaptive sampling methods are developed to efficiently construct an accurate model. The first acquisition formulation, expected effectiveness, searches for the global optimum and is useful for modeling …


Hierarchical Structure, Properties And Bone Mechanics At Macro, Micro, And Nano Levels, Farah Mohammed Ridha Abdulateef Hamandi Jan 2020

Hierarchical Structure, Properties And Bone Mechanics At Macro, Micro, And Nano Levels, Farah Mohammed Ridha Abdulateef Hamandi

Browse all Theses and Dissertations

This research focuses on the hierarchical structure of bone and associated mechanical properties at different scales to assess damage accumulation leading to premature failure, with or without instrumentation. In this work, an attempt was made to develop a framework of macro, micro, and nano damage accumulation models and implementing them to derive mechanical behavior of the bone. At macrolevel, retrospective evaluation of 313 subjects was conducted, and the damage of bone tissue was investigated with respect to subject demography including age, gender, race, body mass index (BMI), height and weight, and their role in initiating fracture. Experimental data utilized 28 …


Bs News January/February Jan 2020

Bs News January/February

Building Services Engineering

No abstract provided.


Seismic Response Mitigation Of Base-Isolated Buildings, Mohammad Hamayoun Stanikzai, Said Elias, Rajesh Rupakhety Jan 2020

Seismic Response Mitigation Of Base-Isolated Buildings, Mohammad Hamayoun Stanikzai, Said Elias, Rajesh Rupakhety

Civil & Environmental Engineering Faculty Publications

Earthquake response mitigation of a base-isolated (BI) building equipped with (i) a single tuned mass damper at the top of the building, (ii) multiple tuned mass dampers (MTMDs) at the top of the building, and (iii) MTMDs distributed on different floors of the building (d-MTMDs) is studied. The shear-type buildings are modeled by considering only one lateral degree of freedom (DOF) at the floor level. Numerical approach of Newmark's integration is adopted for solving the coupled, governing differential equations of motion of 5- and 10-story BI buildings with and without TMD schemes. A set of 40 earthquake ground motions, scaled …


Scalable, Pluggable, And Fault Tolerant Multi-Modal Situational Awareness Data Stream Management Systems, Michael Partin Jan 2020

Scalable, Pluggable, And Fault Tolerant Multi-Modal Situational Awareness Data Stream Management Systems, Michael Partin

Browse all Theses and Dissertations

Features and attributes that describe an event (disasters, social movements, etc.) are heterogeneous in nature. For virtually all events that impact humans, technology enables us to capture a large amount and variety of data from many sources, including humans (i.e., social media) and sensors/internet of things (IoTs). The corresponding modalities of data include text, imagery, voice and video, along with structured data such as gazetteers (i.e., location-based data) and government and statistical data. However, even though there is often an abundance of information produced, this information is fragmented across the various modalities and sources. The DisasterRecord system aims to provide …


Towards Interpretable And Reliable Deep Neural Networks For Visual Intelligence, Ning Xie Jan 2020

Towards Interpretable And Reliable Deep Neural Networks For Visual Intelligence, Ning Xie

Browse all Theses and Dissertations

Deep Neural Networks (DNNs) are powerful tools blossomed in a variety of successful real-life applications. While the performance of DNNs is outstanding, their opaque nature raises a growing concern in the community, causing suspicions on the reliability and trustworthiness of decisions made by DNNs. In order to release such concerns and towards building reliable deep learning systems, research efforts are actively made in diverse aspects such as model interpretation, model fairness and bias, adversarial attacks and defenses, and so on. In this dissertation, we focus on the research topic of DNN interpretations for visual intelligence, aiming to unfold the black-box …


A Narrative Approach To Understanding Career Attrition For Women Engineers, Brian Merritt Scott Jan 2020

A Narrative Approach To Understanding Career Attrition For Women Engineers, Brian Merritt Scott

Walden Dissertations and Doctoral Studies

More women exit the engineering profession than enter, leaving a talent void that incurs lost business value from unrealized business revenues. Without new insights about how to address the continued attrition of women engineers, the profession is unlikely to sustain the human capital needed to achieve competitive advantages through innovation, increased productivity, and improved firm reputation. This qualitative narrative inquiry explored the career attrition phenomenon of six former women engineers in the Northern Tier States region of the United States who left engineering within the past 4 years and were either an engineer-in-training or professional engineer. The conceptual framework for …


A Narrative Approach To Understanding Career Attrition For Women Engineers, Brian Merritt Scott Jan 2020

A Narrative Approach To Understanding Career Attrition For Women Engineers, Brian Merritt Scott

Walden Dissertations and Doctoral Studies

More women exit the engineering profession than enter, leaving a talent void that incurs lost business value from unrealized business revenues. Without new insights about how to address the continued attrition of women engineers, the profession is unlikely to sustain the human capital needed to achieve competitive advantages through innovation, increased productivity, and improved firm reputation. This qualitative narrative inquiry explored the career attrition phenomenon of six former women engineers in the Northern Tier States region of the United States who left engineering within the past 4 years and were either an engineer-in-training or professional engineer. The conceptual framework for …