Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Physical Sciences and Mathematics (501)
- Engineering (301)
- Chemistry (128)
- Environmental Sciences (92)
- Earth Sciences (90)
-
- Life Sciences (88)
- Social and Behavioral Sciences (84)
- Computer Sciences (79)
- Education (71)
- Physics (67)
- Mechanical Engineering (66)
- Chemical Engineering (59)
- Analytical Chemistry (51)
- Geology (51)
- Electrical and Computer Engineering (47)
- Medicine and Health Sciences (44)
- Astrophysics and Astronomy (41)
- Artificial Intelligence and Robotics (40)
- Computer Engineering (39)
- Natural Resources and Conservation (38)
- Data Science (35)
- Operations Research, Systems Engineering and Industrial Engineering (34)
- Aerospace Engineering (33)
- Mathematics (33)
- Organic Chemistry (31)
- Statistics and Probability (29)
- Civil and Environmental Engineering (27)
- Condensed Matter Physics (27)
- Materials Science and Engineering (27)
- Physical Chemistry (26)
- Keyword
-
- Mechanical engineering (173)
- Electrical engineering (143)
- Computer science (121)
- Civil engineering (69)
- Industrial engineering (65)
-
- Mathematics (60)
- Petroleum engineering (56)
- Machine Learning (51)
- Aerospace engineering (50)
- Mining engineering (42)
- Chemical engineering (35)
- Educational technology (32)
- Energy (32)
- Artificial intelligence (31)
- Educational psychology (30)
- Higher education (30)
- Materials science (27)
- Educational administration (26)
- Curriculum development (23)
- Teacher education (23)
- Machine learning (22)
- Automotive engineering (21)
- Forestry (21)
- Biomedical engineering (20)
- Economics (20)
- Environmental engineering (20)
- Geology (20)
- Deep Learning (18)
- Artificial Intelligence (17)
- Educational leadership (17)
- Publication Year
- File Type
Articles 931 - 960 of 2865
Full-Text Articles in Entire DC Network
Practical Oxygen Carrier Development Of Unique Trimetallic Oxide For Chemical Looping Combustion Of Carbonaceous Fuels, William J Benincosa Iii
Practical Oxygen Carrier Development Of Unique Trimetallic Oxide For Chemical Looping Combustion Of Carbonaceous Fuels, William J Benincosa Iii
Graduate Theses, Dissertations, and Problem Reports (ETD)
No abstract provided.
Behaviour Of Laminated Roof Under High Horizontal Stress, Prasoon Garg
Behaviour Of Laminated Roof Under High Horizontal Stress, Prasoon Garg
Graduate Theses, Dissertations, and Problem Reports (ETD)
No abstract provided.
Vision-Based Road Defect Detection And Classification For Impact Effect Mitigation Using Adaptive Suspensions, Shane M Haught
Vision-Based Road Defect Detection And Classification For Impact Effect Mitigation Using Adaptive Suspensions, Shane M Haught
Graduate Theses, Dissertations, and Problem Reports (ETD)
No abstract provided.
Automated Analysis Of Polypharmacy Using Prescription Drug Claims Data, Shahad Nagoor
Automated Analysis Of Polypharmacy Using Prescription Drug Claims Data, Shahad Nagoor
Graduate Theses, Dissertations, and Problem Reports (ETD)
No abstract provided.
Do I Belong Here? Exploring Black Male Student Perceptions Of Retention Initiatives, Jason A Ottley
Do I Belong Here? Exploring Black Male Student Perceptions Of Retention Initiatives, Jason A Ottley
Graduate Theses, Dissertations, and Problem Reports (ETD)
No abstract provided.
Ugv-To-Uav Cooperative Ranging For Robust Navigation In Gnss-Challenged Environments, Victor O Sivaneri
Ugv-To-Uav Cooperative Ranging For Robust Navigation In Gnss-Challenged Environments, Victor O Sivaneri
Graduate Theses, Dissertations, and Problem Reports (ETD)
No abstract provided.
A Unified Poisson-Cahn Methodology For Defect Segregation Near Grain Boundaries In Oxygen-Conducting Solid Electrolytes, Xiaorui Tong
A Unified Poisson-Cahn Methodology For Defect Segregation Near Grain Boundaries In Oxygen-Conducting Solid Electrolytes, Xiaorui Tong
Graduate Theses, Dissertations, and Problem Reports (ETD)
No abstract provided.
Persistence And Characteristics Of Calculus I Students In Stem Disciplines, Xiangming Wu
Persistence And Characteristics Of Calculus I Students In Stem Disciplines, Xiangming Wu
Graduate Theses, Dissertations, and Problem Reports (ETD)
No abstract provided.
Fear Of Pain Across The Adult Lifespan, Casey D Wright
Fear Of Pain Across The Adult Lifespan, Casey D Wright
Graduate Theses, Dissertations, and Problem Reports (ETD)
No abstract provided.
Mean-Swap Variance, Portfolio Theory And Asset Pricing, Jhan Wang
Mean-Swap Variance, Portfolio Theory And Asset Pricing, Jhan Wang
Graduate Theses, Dissertations, and Problem Reports (ETD)
The primary focus of this dissertation is a new risk measure, Swap Variance (SwV), and its applications to expected utility maximization, portfolio theory, and capital asset pricing models (CAPM) with loss aversion and gain preference. Superior to the classical mean-variance (MV) model, the mean-swap variance (MSwV) efficiency is consistent with expected utility maximization for all concave utility without any restriction on the form of either utility function or return distributions. Specifically, the MSwV efficiency is necessary and sufficient to the second-degree stochastic dominance (SSD). Thus, the SSD optimization can be consistently replicated by the SwV minimization for given means. The …
Development Of Biomimetic-Based Controller Design Methods For Advanced Energy Systems, Gaurav Mirlekar
Development Of Biomimetic-Based Controller Design Methods For Advanced Energy Systems, Gaurav Mirlekar
Graduate Theses, Dissertations, and Problem Reports (ETD)
A biologically inspired optimal control strategy, denoted as BIO-CS, is proposed for advanced energy systems applications. This strategy combines the ant's rule of pursuit idea with multi-agent and optimal control concepts. The BIO-CS algorithm employs gradient-based optimal control solvers for the intermediate problems associated with the leader-follower agents' local interactions. The developed BIO-CS is integrated with an Artificial Neural Network (ANN)-based adaptive component for further improvement of the overall framework. In particular, the ANN component captures the mismatch between the controller and the plant models by using a single-hidden-layer technique with online learning capabilities to augment the baseline BIO-CS control …
Dietary Intake And Body Composition Changes During A 12-Week Weight Loss Trial In Middle-Aged And Older Men, Allison Marie Morris
Dietary Intake And Body Composition Changes During A 12-Week Weight Loss Trial In Middle-Aged And Older Men, Allison Marie Morris
Graduate Theses, Dissertations, and Problem Reports (ETD)
Middle-aged adults suffer from the highest rates of obesity in the nation. Obesity is not only a risk factor for cardiovascular-related chronic disease, it is also associated with decreased functional status in aging populations. Depletion of lean mass is a concerning consequence of intentional weight loss. However, efforts to attenuate loss of lean mass with weight loss are often limited to older adults. Understanding body composition changes that occur during intentional weight loss and factors to limit the loss of lean mass during weight loss in middle aged adults are needed reduce and prevent adverse outcomes in old age. The …
Conductance Calculations For Semiconductor-Superconductor Majorana Structures, John Stenger
Conductance Calculations For Semiconductor-Superconductor Majorana Structures, John Stenger
Graduate Theses, Dissertations, and Problem Reports (ETD)
Majorana zero modes (MZMs), also called Majorana bound states (MBSs), are zeroenergy mid-gap modes localized near boundaries and topological defects in one- and twodimensional topological superconductors. These zero-energy modes have attracted significant attention in recent years because of their unique properties, particularly their non- Abelian exchange statistics and their ability to encode quantum information non-locally. These properties make the MZMs an ideal platform for fault-tolerant topological quantum computation. This type of quantum memory is robust against local perturbations, since the information is encoded non-locally, while the information processing, which can be done, for example, by braiding the MZMs, is topologically …
Integrated Circuits For Programming Flash Memories In Portable Applications, Mir Mohammad Navidi
Integrated Circuits For Programming Flash Memories In Portable Applications, Mir Mohammad Navidi
Graduate Theses, Dissertations, and Problem Reports (ETD)
Smart devices such as smart grids, smart home devices, etc. are infrastructure systems that connect the world around us more than before. These devices can communicate with each other and help us manage our environment. This concept is called the Internet of Things (IoT). Not many smart nodes exist that are both low-power and programmable. Floating-gate (FG) transistors could be used to create adaptive sensor nodes by providing programmable bias currents. FG transistors are mostly used in digital applications like Flash memories. However, FG transistors can be used in analog applications, too. Unfortunately, due to the expensive infrastructure required for …
Study Of Biomimetic Micro And Macro Structures For Drag Reduction, Justin S. Schrout
Study Of Biomimetic Micro And Macro Structures For Drag Reduction, Justin S. Schrout
Graduate Theses, Dissertations, and Problem Reports (ETD)
The ever increasing demand for global travel coupled with increasing costs of fuels have prompted many researchers to study new methods to save fuel to make travel more efficient. One of the proverbial low-hanging fruits for fuel efficiency is aerodynamic drag reduction. Simple changes in the shape or placement of structures on the surface of different types of vehicles have been shown to increase fuel efficiency by reducing drag (e.g., add-on lower and aft wake fairings on tractor trailers which have seen a tremendous rise in popularity on US highways in recent years). Areas of interest in drag reduction have …
Integrated Sensing Systems For On-Orbit Robotic Satellite Servicing Applications, Eric Loy
Integrated Sensing Systems For On-Orbit Robotic Satellite Servicing Applications, Eric Loy
Graduate Theses, Dissertations, and Problem Reports (ETD)
There are a variety of stakeholders when it comes to space (the military, other governmental entities, private sector companies, consumers, the scientific community, etc.), and they would all prefer the operational lives of their satellites, observatories, space stations, and other assets to be maximized. Out of the large number of assets in space, only a few were designed with serviceability as a goal. The ability to service "non-cooperative" satellites is an ongoing project being investigated by the National Aeronautics and Space Administration's (NASA) Goddard Space Flight Center (GSFC) and Satellite Servicing Projects Division (SSPD), along with other industrial partners. This …
School Climate: Assessing A Universal Intervention Design To Reduce Academic Risks And Educate The Whole Child., Shay Michael Daily
School Climate: Assessing A Universal Intervention Design To Reduce Academic Risks And Educate The Whole Child., Shay Michael Daily
Graduate Theses, Dissertations, and Problem Reports (ETD)
BACKGROUND: Health and education are inherently connected. Minimizing risky behaviors is essential for students’ academic success and health outcomes. A positive school climate may reduce student risks and promote greater satisfaction and success with school. The purpose of this dissertation was to determine the associations between school climate, academic grades, substance initiation, and types of school absences in a group of middle school students who transition into high school. METHODS: Longitudinal and cross-sectional analyses were used to examine study variables from middle and high school students across 26 regional schools located in West Virginia. RESULTS: Students with positive perceptions of …
Supporting Secondary Mathematics Teacher Candidates In Enacting Responsive Teaching Across Contexts., Stephanie Jones
Supporting Secondary Mathematics Teacher Candidates In Enacting Responsive Teaching Across Contexts., Stephanie Jones
Graduate Theses, Dissertations, and Problem Reports (ETD)
Although the work of teaching is often considered universally straightforward, professional classroom teaching requires more than a teacher’s ability to complete a task; making students’ ideas central to classroom discussions is crucial to student learning. The ability to engage students in classroom discussions focused on student ideas is not innate; it must be developed. Thus, it is important for teacher candidates (TCs) to learn to focus class discussions on student ideas in the university setting, before becoming classroom teachers. This dissertation investigates the ways in which secondary mathematics TCs developed skill in responsive teaching—teaching in which teachers adapt their instruction …
Machine Learning Approaches To Human Body Shape Analysis, Marco Piccirilli
Machine Learning Approaches To Human Body Shape Analysis, Marco Piccirilli
Graduate Theses, Dissertations, and Problem Reports (ETD)
Soft biometrics, biomedical sciences, and many other fields of study pay particular attention to the study of the geometric description of the human body, and its variations. Although multiple contributions, the interest is particularly high given the non-rigid nature of the human body, capable of assuming different poses, and numerous shapes due to variable body composition. Unfortunately, a well-known costly requirement in data-driven machine learning, and particularly in the human-based analysis, is the availability of data, in the form of geometric information (body measurements) with related vision information (natural images, 3D mesh, etc.). We introduce a computer graphics framework able …
The Role Of Interleukin-12 And Exosomes In The Dynamic Interplay Of Cancer And The Immune System, Christina Nicole Nikki Byrne-Hoffman
The Role Of Interleukin-12 And Exosomes In The Dynamic Interplay Of Cancer And The Immune System, Christina Nicole Nikki Byrne-Hoffman
Graduate Theses, Dissertations, and Problem Reports (ETD)
Melanoma and breast cancers account for a large number of cancer diagnoses and deaths, with 1 in 28 and 1 in 8 developing melanoma or breast cancer, respectively, in their lifetime. T Lymphocytes play a pivotal role in the immune system response to cancers and are known to evade the immune system by a variety of mechanisms, including modulation of cytokine function. A cytokine important for the function of T lymphocytes, Interleukin-12, and modulation of its Janus Kinase and activators of transcription (JAK-STAT) signaling pathway, plays a role in the immune response to tumors, especially melanoma. We examined the role …
Evaluation Of Wvuteach: Enrollment, Retention, And Students' Intentions, Catherine Garner
Evaluation Of Wvuteach: Enrollment, Retention, And Students' Intentions, Catherine Garner
Graduate Theses, Dissertations, and Problem Reports (ETD)
Background/Purpose: Mathematics and science achievement of K-12 students in the United States is lagging the achievement of students in other developed countries. A shortage of highly qualified teachers in the areas of science, technology, mathematics, and engineering (STEM) is a contributing factor to lower achievement. One solution is to provide an efficient means for STEM students to earn a teaching certification without adding time to their current four-year degree programs. In 2015, West Virginia University introduced WVUteach, a program designed to encourage students in STEM majors to earn their teaching certifications while they are earning their degrees in their major …
A Low-Cost Normalized Difference Vegetation Index (Ndvi) Payload For Cubesats And Unmanned Aerial Vehicles (Uavs), Steven Hard
A Low-Cost Normalized Difference Vegetation Index (Ndvi) Payload For Cubesats And Unmanned Aerial Vehicles (Uavs), Steven Hard
Graduate Theses, Dissertations, and Problem Reports (ETD)
The focus of this research has been the design and fabrication of a Normalized Difference Vegetation Index (NDVI) payload configuration. This unique payload employs low-cost commercial off-the-shelf (COTS) hardware and equipment to assess photosynthetic activity and vegetation health through remote sensing on Cubesat or Unmanned Aerial Vehicle (UAV) platforms. The proposed NDVI imaging payload is comprised of three main subsystems: an electrical system, a software system, and a hardware system. The electrical system includes a custom designed printed circuit board (PCB), a single cell 3.7 V lithium-polymer battery, voltage regulator circuitry components, and wiring harnesses and connectors. The software system …
Spatial Fourier Transform For Blind Detection Of Radio Observations Of Rotating Radio Transients, Xiaoqian He
Spatial Fourier Transform For Blind Detection Of Radio Observations Of Rotating Radio Transients, Xiaoqian He
Graduate Theses, Dissertations, and Problem Reports (ETD)
In this thesis we propose a new blind algorithm, which we call Energy in Transformed Data (ETD), for the detection of isolated astrophysical pulses. Unlike the conventional algorithm, which requires de-dispersion, integration over frequency channels and matched filtering, the ETD algorithm detects pulses in a space reciprocal to the space of filterbank data. The ETD algorithm is implemented in three steps: (1) it applies the Spatial Fourier Transform (SFT) to filterbank data, (2) it evaluates the energy of signal in the transformed space, and (3) it compares the value of the total energy to a threshold. If the energy in …
An Exploration Of Diversity And Inclusion In Introductory Physics, Rachel J. Henderson
An Exploration Of Diversity And Inclusion In Introductory Physics, Rachel J. Henderson
Graduate Theses, Dissertations, and Problem Reports (ETD)
Diversity and inclusion has been a concern for the physics community for nearly 50 years. Despite significant efforts including the American Physical Society (APS) Conferences for Undergraduate Women in Physics (CUWiP) and the APS Bridge Program, women, African Americans, and Hispanics continue to be substantially underrepresented in the physics profession. Similar efforts within the field of engineering, whose students make up the majority of students in the introductory calculus-based physics courses, have also met with limited success. With the introduction of research-based instruments such as the Force Concept Inventory (FCI), the Force and Motion Conceptual Evaluation (FMCE), and the Conceptual …
Connecting Talent To Technique An Actor's Exploration Of Connecting Back To Their Roots, Madeline Hintz
Connecting Talent To Technique An Actor's Exploration Of Connecting Back To Their Roots, Madeline Hintz
Graduate Theses, Dissertations, and Problem Reports (ETD)
This paper is a reflection of my experience performing the role of Sara Jane Moore in the musical Assassins. To work through this role and honor the simplicity of the comedy, I needed to divulge my insecurities that stem from my past musical theatre and comedic experiences. Working through my past and my time here at WVU, the realization of how personal tensions affected my work made the role of Sara Jane Moore the most challenging experience of my graduate school education. The increased awareness of my resistance to new acting and voice techniques allowed me to grow and develop, …
Prediction Of Thrombus Formation In Ladder Network And Stability Of Thrombus In A Bifurcation, Hari Hara Sudhan Lakshmanan
Prediction Of Thrombus Formation In Ladder Network And Stability Of Thrombus In A Bifurcation, Hari Hara Sudhan Lakshmanan
Graduate Theses, Dissertations, and Problem Reports (ETD)
Thrombus formation on complex branched networks like extracorporeal membrane oxygenators (ECMO) is poorly understood. In this work, we built a COMSOL model on branched networks, to understand and predict the thrombus formation under blood flow. A microfluidic ladder network design was used to study the change in hemodynamics. The microfluidic ladder sizes are chosen to mimic the physiologically relevant shear rates of 300 s--1 and 700 s--1 in main channels and bypasses respectively. The COMSOL model results were analyzed to understand the flow dynamics inside the ladder network. We predicted the thrombus nucleation points in the ladder network, based on …
Applications Of Artificial Intelligence (Ai) In Petroleum Engineering Problems, Shan E Zehra Lashari
Applications Of Artificial Intelligence (Ai) In Petroleum Engineering Problems, Shan E Zehra Lashari
Graduate Theses, Dissertations, and Problem Reports (ETD)
For the last few decades multiple business sectors have been influenced by the advancement in Artificial Intelligence (AI). Though the oil and gas sector began to utilize the potential of AI comparatively latter than many other sectors, the appreciable amount of work has been done by researchers to equip the industry with AI tools. This work aims to explore various horizons of petroleum engineering by using different AI tools.;For providing better decision making in reservoir fluid characterization problem, fuzzy logic has been applied, which is an AI method to drive decisions when data is incomplete or unreliable. The second part …
Uav Modeling And Simulation At Normal And Abnormal Conditions, Mofetoluwa Fagbemi
Uav Modeling And Simulation At Normal And Abnormal Conditions, Mofetoluwa Fagbemi
Graduate Theses, Dissertations, and Problem Reports (ETD)
The main objective of this thesis is to develop new capabilities within the West Virginia University (WVU) unmanned aerial systems (UAS) simulation environment for the design and analysis of fault tolerant control laws on small sized unmanned aerial vehicles (UAVs). An aerodynamic model for an electric powered UAV is developed using a vortex lattice method implemented within the computational design package Tornado. One-dimensional look-up tables are developed for the main stability and control derivatives, which are then used to calculate linear aerodynamic forces and moments for the nonlinear aircraft equations of motion. Flight data are used for model verification and …
Efficient Wound Assessment System With An Rgb-D Camera, Xiang Gao
Efficient Wound Assessment System With An Rgb-D Camera, Xiang Gao
Graduate Theses, Dissertations, and Problem Reports (ETD)
Continuous monitoring of changes in wound size, wound area, and volume, is key to predict whether wounds will heal on time. Wound measurement methods can be subdivided into non- contact and contact methods. Contact methods are prone to errors given the human intervention and it increases the chance of discomfort during measurement. Alternative methods, such as image- based non-contact methods, eliminate any discomfort and have good reliability for measuring a wound. However, existing image-based non-contact methods are expensive. This is because these methods build a 3D model of the wound using expensive devices in order to allow the clinician to …
Flexible High-Density Puzzle Storage Systems, Ehsan Shirazi
Flexible High-Density Puzzle Storage Systems, Ehsan Shirazi
Graduate Theses, Dissertations, and Problem Reports (ETD)
In a traditional storage system, when one of the mechanical or electrical parts or the software fails to operate correctly, it may lead to the failure of the entire system imposing huge costs to the system (Gue et al., 2014). However, in a grid storage network, if a grid fails to operate, the system continues to operate. Therefore, failure of a system component will not jeopardize the whole system functionality. As such, reliability is one of the key advantages of grid storage networks. Another benefit of grid storage systems is flexibility. Various systems such as GridFlow, GridPick, GridStore, are developed …