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Improving Osmo-Convective Dehydration As A Processing Technique To Food Preservation, Quality Enhancement, And New Product Development, Felix Umaizimede Akharume
Improving Osmo-Convective Dehydration As A Processing Technique To Food Preservation, Quality Enhancement, And New Product Development, Felix Umaizimede Akharume
Graduate Theses, Dissertations, and Problem Reports (ETD)
Improving Osmo-convective Dehydration as a Processing Technique to Food Preservation, Quality Enhancement, and New Product Development Felix Umaizimede Akharume This thesis is organized into five chapters. Chapter 1 contains a contains background information review of literature on osmo-convective drying of fruits, as well and nutrition, microbiology, and sensory attributes, Chapters 2 through 4 are three journal articles presented in the manuscript style. While chapter 2 is already published chapters 3 and 4 are prepared for submission to scientific journals. The chapter 2 addresses the use of apple juice concentrate as an alternative to the conventionally use of sugar solution in …
Productivity Index Of Horizontal Gas Well, Abdullah A. Almuraikhi
Productivity Index Of Horizontal Gas Well, Abdullah A. Almuraikhi
Graduate Theses, Dissertations, and Problem Reports (ETD)
One of the most direct techniques to evaluate gas well production capacity is by productivity index (PI). As the application of horizontal wells has significantly increased since 1980s, a number of correlations for predicting the horizontal well PI have been developed by modification of the PI correlations for vertical wells. However, the predicted PI values by different correlations differ significantly. Furthermore, there are no available guidelines for proper application of the various correlations. The objective of this research is to determine the most reliable correlation for horizontal well productivity index in a gas reservoir and identify the key parameters that …
A Data-Driven Smart Proxy Model For A Comprehensive Reservoir Simulation, Faisal Alenezi
A Data-Driven Smart Proxy Model For A Comprehensive Reservoir Simulation, Faisal Alenezi
Graduate Theses, Dissertations, and Problem Reports (ETD)
The preferred common tool to estimate the performance of oil and gas fields under different production scenarios is numerical reservoir simulation. A comprehensive numerical reservoir model has tens of millions of grid blocks. The massive potential of existing numerical reservoir simulation models have gone unrealized because they are computationally expensive and time-consuming. Therefore, an effective alternative tool is required for fast and reliable decision making. To reduce the required computational time, proxy models have been developed. Traditional proxy models are either statistical or reduced-order models (ROM). They were developed to substitute complex numerical simulation with producing a representation of the …
A Multidimensional Technique For Measuring Consensus Within Groups Via Conditional Probability, Mushtaq K. Abd Al-Rahem
A Multidimensional Technique For Measuring Consensus Within Groups Via Conditional Probability, Mushtaq K. Abd Al-Rahem
Graduate Theses, Dissertations, and Problem Reports (ETD)
A recent increase in the use of the term "consensus" in various fields has led researchers to develop various ways to measure the consensus within and across groups depending on the areas. Numerous studies use the mean or the variance alone as a measure of consensus, or lack of consensus. Most of the time, high variance is viewed as more disagreement in a group. Using the variance as a measure of disagreement is meaningful in an exact comparison cases (same group, same mean). However, it could be meaningless when it is used to compare groups that have different sizes, or …
A Study Of Arc Strong Connectivity Of Digraphs, Janet Anderson
A Study Of Arc Strong Connectivity Of Digraphs, Janet Anderson
Graduate Theses, Dissertations, and Problem Reports (ETD)
My dissertation research was motivated by Matula and his study of a quantity he called the strength of a graph G, kappa'( G) = max{lcub}kappa'(H) : H G{rcub}. (Abstract shortened by ProQuest.).
Monitoring And Control Framework For Advanced Power Plant Systems Using Artificial Intelligence Techniques, Ghassan Khalil Ismaeel Al-Sinbol
Monitoring And Control Framework For Advanced Power Plant Systems Using Artificial Intelligence Techniques, Ghassan Khalil Ismaeel Al-Sinbol
Graduate Theses, Dissertations, and Problem Reports (ETD)
This dissertation presents the design, development, and simulation testing of a monitoring and control framework for dynamic systems using artificial intelligence techniques. A comprehensive monitoring and control system capable of detecting, identifying, evaluating, and accommodating various subsystem failures and upset conditions is presented. The system is developed by synergistically merging concepts inspired from the biological immune system with evolutionary optimization algorithms and adaptive control techniques.;The proposed methodology provides the tools for addressing the complexity and multi-dimensionality of the modern power plants in a comprehensive and integrated manner that classical approaches cannot achieve. Current approaches typically address abnormal condition (AC) detection …
Men Faculty Engagement In Gender Equity Work In Stem: The Radicalization Of "Doing The Right Thing", Amena Oliver Anderson
Men Faculty Engagement In Gender Equity Work In Stem: The Radicalization Of "Doing The Right Thing", Amena Oliver Anderson
Graduate Theses, Dissertations, and Problem Reports (ETD)
This grounded theory study explores the sparsely examined phenomenon of men faculty engagement in gender equity work through the National Science Foundation's (NSF) ADVANCE project and one of its program innovations, Men Faculty Advocates and Allies (A & A). The A & A initiative recruits two categories of men faculty---advocates and allies---to engage in a program of work designed to heighten awareness about gender inequity and redress it through strategic efforts at the individual, departmental, and institutional level. Advocates are usually senior faculty or program administrators from within and outside of STEM fields. They assume the greater part of the …
Investigation Of Co2 Sequestration For The Assessment Of The Impact On Resource Storage With Co-Production Of Brine, Mohammad Junaid Ashfaq
Investigation Of Co2 Sequestration For The Assessment Of The Impact On Resource Storage With Co-Production Of Brine, Mohammad Junaid Ashfaq
Graduate Theses, Dissertations, and Problem Reports (ETD)
In order to reduce Green House Gases, Carbon-dioxide (CO2) storage in deep saline aquifers is a viable commercial application for minimizing emissions. It is important to understand surface area needed to predict large scale CO2 storage while fully utilizing injection capacity. This study presents results from varying Injection pressure and well spacing to find minimal-effective well spacing required to store CO2. The study shows pressure management to manipulate hydrodynamic behavior of CO 2 in saline formations system. In conjunction, understanding the interplay of CO2 dissolution, buoyancy flow, and capillary forces in regulating the behavior of the injected CO2 plume are …
Metaphors Of Reading: Cognition And Embodiment In Contemporary Metafiction, Amanda L. Bailey
Metaphors Of Reading: Cognition And Embodiment In Contemporary Metafiction, Amanda L. Bailey
Graduate Theses, Dissertations, and Problem Reports (ETD)
This project brings together methodologies from sensory and cognitive approaches to literature to posit that Conceptual Metaphors of Readings mediate the experience of readers with fiction and provide an organizing framework for scholars and readers alike to consider the diverse sensory and cognitive phenomena that are used to describe the experience of reading. These conceptual metaphors are culturally and historically developed and can be used in combination with each other by authors to achieve desired effects on readers; however, there are clear patterns in metaphor blends. I demonstrate the robustness of this framework by analyzing metafictional readers, scenes of reading, …
Selected Topics In Image Super-Resolution: Guided Image And Learning Representation, Wentian Zhou
Selected Topics In Image Super-Resolution: Guided Image And Learning Representation, Wentian Zhou
Graduate Theses, Dissertations, and Problem Reports (ETD)
Obtaining high-resolution images is a fundamental challenge for many vision related tasks. It is highly desirable to develop effective and efficient super-resolution algorithms to enhance the spatial resolution of acquired images. However, estimating high-resolution images is an ill-posed problem where a large set of possible solutions exist. To make this inverse problem more tractable, it is often necessary to constrain the targeted high-resolution image with a priori information (i.e., in model-based approaches) or to assume the availability of additional training data (i.e., in learning-based approaches). In this dissertation, we propose to (i) use simultaneous-sparse-coding and machine learning techniques to incorporate …
Examining Strain Propagation In The Lateral And Codominant Branch Attachment Using Digital Image Correlation, Robert T. Eckenrode Iv
Examining Strain Propagation In The Lateral And Codominant Branch Attachment Using Digital Image Correlation, Robert T. Eckenrode Iv
Graduate Theses, Dissertations, and Problem Reports (ETD)
Static load testing of branches is a well-established method for examining attachment strength of trees. Information gathered from these experiments is used to better understand how branches fail, and predict how they are attached to their parent stem. Digital image correlation (DIC) is used to directly measure strain on the surface of materials during static load testing. By examining how strain moves through the branch attachment, a better understanding of how trees carry loads can also be attained. In these experiments, strain propagation in the branch connection zone of lateral and codominant stems was measured utilizing digital image correlation. In …
Social Capital Structure And Dynamics In Stream Restoration: A Social Network Analysis Approach To The Upper Shavers Fork, West Virginia, Paul J. Kinder Jr.
Social Capital Structure And Dynamics In Stream Restoration: A Social Network Analysis Approach To The Upper Shavers Fork, West Virginia, Paul J. Kinder Jr.
Graduate Theses, Dissertations, and Problem Reports (ETD)
Streams are common pool resources embedded in watersheds representing complex socio-ecological systems that provide ecological goods and services as well as economic and social benefits. They have been referred to as the lifeblood of civilization. Streams, however, are among the most vulnerable natural resources globally to anthropocentric impacts and are all too often in need of restoration. While the primary objective of stream restoration is to bring back healthy ecological functions, other benefits and outcomes from restoration efforts exist, but are often overlooked. These benefits and outcomes relate to effective natural resource governance systems, which rely on social networks comprised …
Characterization Of Insulin Sensitivity And The Plasma Lipidome In Periparturient Dairy Cows, Sina Saed Samii
Characterization Of Insulin Sensitivity And The Plasma Lipidome In Periparturient Dairy Cows, Sina Saed Samii
Graduate Theses, Dissertations, and Problem Reports (ETD)
During the transition from gestation to lactation, dairy cows experience negative energy balance due to an increased demand for energy to support milk production coupled with inadequate energy intake. Energy deficit during the peripartum is associated with the development of insulin resistance which contributes to adipose tissue lipolysis. In turn, elevated free fatty acids (FFA) in circulation increase triacylglycerol (TAG) deposition in liver. This metabolic impairment is known to cause postpartum metabolic diseases including fatty liver and ketosis. Consequently, postpartum metabolic disease can lead to reduced milk production in early lactation, impaired reproductive performance, and increased culling rates. Moreover, cows …
Modeling, Simulation And Decentralized Control Of Islanded Microgrids, Farideh Doost Mohammadi
Modeling, Simulation And Decentralized Control Of Islanded Microgrids, Farideh Doost Mohammadi
Graduate Theses, Dissertations, and Problem Reports (ETD)
Modeling, Simulation and Decentralized Control of Islanded Microgrids by Farideh Doost Mohammadi This thesis develops a comprehensive modular state-space model of microgrids containing inverter-based Distributed Energy Resources (DERs). The model is validated and then used for small signal stability enhancement and voltage and frequency control. State space models of various microgrid elements are first derived, which allow for the inclusion of any possible elements such as current controlled inverters that are missing in the literature. Then a complete state space model is obtained to complement the models that are available in the literature and whose objectives are system analysis only …
Dual-Layered Multi-Objective Genetic Algorithms (D-Moga): A Robust Solution For Modern Engine Development And Calibrations, Pragalath Thiruvengadam Padmavathy
Dual-Layered Multi-Objective Genetic Algorithms (D-Moga): A Robust Solution For Modern Engine Development And Calibrations, Pragalath Thiruvengadam Padmavathy
Graduate Theses, Dissertations, and Problem Reports (ETD)
Heavy-duty (HD) diesel engines are the primary propulsion systems used within the freight transportation sector and are subjected to stringent emissions regulations. The primary objective of this study is to develop a robust calibration technique for HD engine optimization in order to meet current and future regulated emissions standards during certification cycles and off-cycle vocation activities. Recently, California - Air Resources Board (C-ARB) has also shown interests in controlling off-cycle emissions from vehicles operating in California by funding projects such as the Ultra-Low NOx study by Sharp et. al [1]. Moreover, there is a major push for the complex real-world …
Hydraulics And Well Control Complications In Unconventional Shale Laterals, Tawfik A Elshehabi
Hydraulics And Well Control Complications In Unconventional Shale Laterals, Tawfik A Elshehabi
Graduate Theses, Dissertations, and Problem Reports (ETD)
No abstract provided.
Resonant Excitation Spectroscopy And Photon Statistics Of Self-Assembled Semiconductor Quantum Dots, Disheng Chen
Resonant Excitation Spectroscopy And Photon Statistics Of Self-Assembled Semiconductor Quantum Dots, Disheng Chen
Graduate Theses, Dissertations, and Problem Reports (ETD)
Light-matter interactions in semiconductor nanostructures have attracted significant research interest because of both fundamental physics questions and practical concerns. Epitaxially grown quantum dots (QDs), with their narrow emission linewidths and atom-like density of states in a solid state system, are archetypical elements of study and are potentially useful for many applications, such as on-demand single photon emitters [1,2], efficient entangled photon-pair sources [3,4], and cavity quantum electrodynamics (QED) research [5–11]. Most experiments employ resonant or near-resonant excitation to directly interact with the bound states, which enables high excitation efficiency, precise control of quantum states, and minimal disturbance of the local …
Study Of Parameter Estimation And Model Calibration Using Bayesian Analysis Of Noisy Data For A Virus Model, Alejandro Mejia
Study Of Parameter Estimation And Model Calibration Using Bayesian Analysis Of Noisy Data For A Virus Model, Alejandro Mejia
Graduate Theses, Dissertations, and Problem Reports (ETD)
Numerous engineering problems are concerned with the challenge of representing real life systems through mathematical equations: modeling. Properly generated mathematical models can accurately predict the behavior of natural processes. The key objective of model development is to correctly build a set of equations or expressions that can reproduce the results observed from experimental measurements. By following this methodology, sources of error and uncertainty will arise as most natural processes have random factors that make the results stochastic, and therefore can never be exactly reproduced. A model can try to best approximate the actual outcome, but many times assumptions or simplifications …
The Assessment Of Fingerprint Quality For A More Effective Match Score In Minutiae-Based Matching Performers, Alyshia Meyers
The Assessment Of Fingerprint Quality For A More Effective Match Score In Minutiae-Based Matching Performers, Alyshia Meyers
Graduate Theses, Dissertations, and Problem Reports (ETD)
One of the most common types of evidence recovered from a crime scene are latent fingerprints, however these impressions are often of low quality. The quality of a latent fingerprint is described as the degree to which the ridge details can be observed. If the quality of the latent fingerprint is very clear, a minutiae-based matching algorithm with automatic extraction may detect and utilize the minutiae that are truly present in the fingerprint. However, if the impression is of poor quality, the minutiae-based matching algorithm's automatic extraction may detect fewer features and could completely miss features resulting in the return …
On Some Parabolic Type Problems From Thin Film Theory And Chemical Reaction-Diffusion Networks, Fatma Naser Ali Mohamed
On Some Parabolic Type Problems From Thin Film Theory And Chemical Reaction-Diffusion Networks, Fatma Naser Ali Mohamed
Graduate Theses, Dissertations, and Problem Reports (ETD)
This dissertation considers some parabolic type problems from thin film theory and chemical reaction-diffusion networks. The dissertation consists of two parts:;In the first part, we study the evolution of a thin film of fluid modeled by the lubrication approximation for thin viscous films. We prove an existence of (dissipative) strong solutions for the Cauchy problem when the sub-diffusive exponent ranges between 3/8 and 2; then we show that these solutions tend to zero at rates matching the decay of the source-type self-similar solutions with zero contact angle. We introduce the weaker concept of dissipative mild solutions and we show that, …
Physical Property Modeling Of Solvent-Based Carbon Capture Processes With Uncertainty Quantification And Validation With Pilot Plant Data, Joshua Cole Morgan
Physical Property Modeling Of Solvent-Based Carbon Capture Processes With Uncertainty Quantification And Validation With Pilot Plant Data, Joshua Cole Morgan
Graduate Theses, Dissertations, and Problem Reports (ETD)
The US DOE's Carbon Capture Simulation Initiative (CCSI) has a strong focus on the development of state of the art process models to accelerate the development and commercialization of post-combustion carbon capture system technologies. One of CCSI's goals is the development of a rigorous process model that may serve as a definitive reference for benchmarking the performance of solvent-based CO2 capture systems, using aqueous monoethanolamine (MEA) as a baseline. Among the requirements of this process model is the development of its component submodels (e.g. physical properties) from relevant bench-scale data. Moreover, the process model must take into account parametric uncertainty …
Adapting Roof Support Methods For Anchoring Satellites On Asteroids, Grant B. Speer
Adapting Roof Support Methods For Anchoring Satellites On Asteroids, Grant B. Speer
Graduate Theses, Dissertations, and Problem Reports (ETD)
The use of anchorage in satellite and spacecraft design has been largely restricted to harpoon-inspired technology based on anticipated low strengths of cometary and asteroid material. Initial results from the Rosetta mission to comet 67P/Churyumov- Gerasimenko, however, have demonstrated both larger-than-expected compressive strengths of cometary materials and the importance of adequate anchorage to mitigate the risk of mission failure. The field of rock mechanics can provide unique insight into the design of these satellite and lander anchors by drawing on existing roof bolt technology. This study compared the behavior of tensioned point anchor and untensioned fully-grouted roof bolts with a …
What Do Astronomers Do: A Survey Of U.S. Astronomers' Attitudes, Tools And Techniques, And Social Interactions Engaged In Through Their Practice Of Science, Timothy S. Spuck
What Do Astronomers Do: A Survey Of U.S. Astronomers' Attitudes, Tools And Techniques, And Social Interactions Engaged In Through Their Practice Of Science, Timothy S. Spuck
Graduate Theses, Dissertations, and Problem Reports (ETD)
Astronomy is one of the oldest STEM enterprises today. It is a discipline through which technology has been advanced, as well as our understanding of the universe. Further, astronomy is a gateway science that inspires the imagination of young learners, and can be used to promote STEM careers. In order to advance the astronomy enterprise, we must maintain an informed citizenry. The practice of astronomy has changed over time; astronomy today is much different than it was 50 years ago. In an effort to identify the current practice of astronomy, or what it is that today's astronomers do, 478 U.S. …
A Model For Permeability Reduction In Polymer Nanocomposites And Its Experimental Validation, Man Chio Tang
A Model For Permeability Reduction In Polymer Nanocomposites And Its Experimental Validation, Man Chio Tang
Graduate Theses, Dissertations, and Problem Reports (ETD)
Environmental concerns have led to research interest in biodegradable plastics, especially polylactic acid (PLA). PLA, a bio-derived and biodegradable polymer which is readily available, is easy to process, and it can be a good substitute for conventional non-biodegradable polymers in food packaging applications. However, its poor gas barrier property has to be improved to make it competitive with more widely-used materials such as polyethylene terephthalate (PET) and polystyrene (PS). This can potentially be accomplished by dispersing nanoplatelets in the polymer as these additives act as impermeable barriers around which the diffusing molecules are forced to take a longer, tortuous path. …
Characterization And Flight Test Of A Multi-Antenna Gnss, Multi-Sensor Attitude Determination Algorithm, Nathan Tehrani
Characterization And Flight Test Of A Multi-Antenna Gnss, Multi-Sensor Attitude Determination Algorithm, Nathan Tehrani
Graduate Theses, Dissertations, and Problem Reports (ETD)
A multi-antenna Global Navigation Satellite System (GNSS), multi-sensor attitude estimation algorithm is outlined, and its sensitivity to various error sources is assessed. The attitude estimation algorithm first estimates attitude using multiple GNSS antennas, and then fuses a host of other attitude estimation sensors including tri-axial magnetometers, Sun sensors, and inertial sensors. This work is motivated by the attitude determination needs of the Antarctic Impulse Transient Antenna (ANITA) experiment, a high-altitude balloon-suspended science platform. In order to assess performance trade-offs of various algorithm configurations, the attitude estimation performance of various approaches is tested using a simulation that is based on recorded …
Forecasting Automobile Demand Via Artificial Neural Networks & Neuro-Fuzzy Systems, Armin Niaki
Forecasting Automobile Demand Via Artificial Neural Networks & Neuro-Fuzzy Systems, Armin Niaki
Graduate Theses, Dissertations, and Problem Reports (ETD)
The objective of this research is to obtain an accurate forecasting model for the demand for automobiles in Iran's domestic market. The model is constructed using production data for vehicles manufactured from 2006 to 2016, by Iranian car makers. The increasing demand for transportation and automobiles in Iran necessitated an accurate forecasting model for car manufacturing companies in Iran so that future demand is met. Demand is deduced as a function of the historical data. The monthly gold, rubber, and iron ore prices along with the monthly commodity metals price index and the Stock index of Iran are Artificial neural …
The Influence Of External Load Configuration On Trunk Musculature And Spinal Stability During Manual Material Handling, Seyed Saman Madinei
The Influence Of External Load Configuration On Trunk Musculature And Spinal Stability During Manual Material Handling, Seyed Saman Madinei
Graduate Theses, Dissertations, and Problem Reports (ETD)
The performance of manual material handling (MMH) tasks is highly associated with lower back injuries due to the excessive acute and/or cumulative mechanical loading that spinal tissues experience. Therefore, it is critical to understand how different characteristics of MMH tasks could become potential risk factors that change back injury risks and to develop proper MMH strategies that could reduce their biomechanical impacts to the spine. In this study, we explored the effects of external load configuration on trunk musculature and spinal stability during static loading and sudden loading scenarios.;The main objective of the current research was to explore how the …
Finite Element Simulation Of Large-Scale Confined Inflatable Structures, Iole Pecora
Finite Element Simulation Of Large-Scale Confined Inflatable Structures, Iole Pecora
Graduate Theses, Dissertations, and Problem Reports (ETD)
The protection of transportation tunnels is one of the top priorities of transportation and government entities. Transportation tunnels have been identified as particularly vulnerable to different threats such as propagation of toxic gasses, or smoke originated by human activities or flooding originated by extreme climatic events such as hurricanes and severe weather. Finding solutions to minimize the consequences of disastrous events has become critical to increase the resiliency of tunnel systems. The implementation of large-scale inflatable structures at specific locations of the tunnel system for containing the propagation of flooding or gases is now possible. When a threat happens, a …
Three Essays On State And Federal Regulations, Shree Baba Pokharel
Three Essays On State And Federal Regulations, Shree Baba Pokharel
Graduate Theses, Dissertations, and Problem Reports (ETD)
This dissertation consists of three essays on state and federal regulations in the US. Each paragraph below refers to the three abstracts for the three chapters in this dissertation, respectively.;Given the growing importance of the wine industry in the US, wine special interests are on the rise. Data shows that campaign contributions from the wine industry to officials running for state offices have increased over time. Given this reality, one can expect wine excise tax to remain low in states that receive higher campaign contributions. In addition, there are theoretical and empirical reasons to believe that these tax rates are …
Developing And Implementing New Algorithms Into The Lamodel Program For Numerical Analysis Of Multiple Seam Interactions, Mehdi Rajaeebaygi
Developing And Implementing New Algorithms Into The Lamodel Program For Numerical Analysis Of Multiple Seam Interactions, Mehdi Rajaeebaygi
Graduate Theses, Dissertations, and Problem Reports (ETD)
Analysis of incidents in underground mining reveals that ground falls, including roof and rib falls, is one of the major sources of injuries and fatalities, however the number of accidents has reduced significantly during recent years (MSHA 2015). For instance, in 2005, around 60% of total fatalities in underground mining were associated with ground falls. This percentage has dropped to 37% in 2015 (MSHA 2015). This significant reduction in underground incidents may be caused by several reasons such as: using advanced technology, advance in computer science, new policies on safety, etc. Development of mathematical methods such as finite element and …