Digital Commons Network^™

Breakfast Cereals, Robert Yokel

Aluminum in Beverages and Foods: A Compilation

No abstract provided.

Breads, Robert Yokel

Aluminum in Beverages and Foods: A Compilation

No abstract provided.

Non-Specific Fruit, Robert Yokel

Aluminum in Beverages and Foods: A Compilation

No abstract provided.

Table D: Salt Influence On Aluminum Mobilization Into Beverages And Foods, Robert Yokel

Aluminum in Beverages and Foods: A Compilation

No abstract provided.

Strawberry And Strawberry Juice, Robert Yokel

Aluminum in Beverages and Foods: A Compilation

No abstract provided.

Soft Drinks, Robert Yokel

Aluminum in Beverages and Foods: A Compilation

No abstract provided.

Drinking Water By Location, Robert Yokel

Aluminum in Beverages and Foods: A Compilation

No abstract provided.

Chicken And Chicken-Based Foods, Robert Yokel

Aluminum in Beverages and Foods: A Compilation

No abstract provided.

Soy-Based Formula, Robert Yokel

Aluminum in Beverages and Foods: A Compilation

No abstract provided.

Milk-Based Formula, Robert Yokel

Aluminum in Beverages and Foods: A Compilation

No abstract provided.

Baby And Infant Food, Robert Yokel

Aluminum in Beverages and Foods: A Compilation

No abstract provided.

Infant Formula, Robert Yokel

Aluminum in Beverages and Foods: A Compilation

No abstract provided.

Seafood, General Categories, Robert Yokel

Aluminum in Beverages and Foods: A Compilation

No abstract provided.

Combined Machine Learning And Differential Evolution For Optimal Design Of Electric Aircraft Propulsion Motors, David R. Stewart, Matin Vatani, Rosemary E. Alden, Donovin D. Lewis, Pedram Asef, Dan M. Ionel

Electrical and Computer Engineering Graduate Research

Electric aircraft propulsion requires highly efficient and power-dense fault-tolerant electric motors optimized for specific flight profile operation. State-of-the-art design of electric motors involves substantial computational resources and combines electromagnetic finite element analysis (FEA) and optimization techniques. This paper proposes a new approach using a physics-based machine learning (ML) multi-input univariate meta-model trained on FEA and differential evolution (DE) optimization results to predict electromagnetic torque output. Hundreds of individual designs, generated through multiple generations of a DE algorithm, are analyzed by 3D FEA to create a database, which is then employed for the training and satisfactory validation of the ML model. …

Spatiotemporal Wind Energy Assessment For Transmission Network Integration Considering The Location Of Electrical Substations And Loads, Kwabena Kyeremeh, Rosemary E. Alden, Aron Patrick, Dan M. Ionel

Electrical and Computer Engineering Graduate Research

Wind energy is an abundant renewable resource that can support decarbonization of energy supply. It is, therefore, essential to conduct a comprehensive assessment of wind energy potential for effective transmission network planning and integration. This work introduces a spatial-temporal assessment methodology for wind energy name plate-rated power capacity that considers the locations of electrical substations and transmission lines. This methodology applies Geographic Information System (GIS) land cover data to define siting exclusions for wind turbine installations. The correlation between generated wind power and estimates of power system load, as well as capacity factor, on a sub-regional basis for specific latest …

Combined 3d Fea And Machine Learning Design Of Inductive Polyphase Coils For Wireless Ev Charging, Lucas A. Gastineau, Donovin D. Lewis, Dan M. Ionel

Electrical and Computer Engineering Graduate Research

Wireless power transfer (WPT) technologies are currently researched and developed for charging the batteries of electric unmanned air and ground vehicles. This paper presents systems with special polyphase inductive coils, which generate rotating fields and achieve high power density and efficiency. The complex geometry is modeled and studied with 3D electromagnetic finite element analysis (FEA). In order to reduce the substantial computational effort, machine learning techniques are proposed for surrogate modeling. A deep learning algorithm is introduced to capture the physics-based relationships between geometry and electromagnetic properties in inductive coils for wireless charging. Parametric models are systematically generated and analyzed …

Investigating The Effect Of Microwave Pretreatment On Bastnasite Grinding For Comminution Energy Reduction And Rare Earth Recovery, Kaveh Asgari, Qingqing Huang, Rick Q. Honaker, Edward Sabolsky

Chemical and Materials Engineering Faculty Publications

This study explored the impact of microwave pretreatment on the grinding efficiency of bastnaesite ore using a stirred mill. Bastnaesite ore was prepared using a staged crushing and sieving process, followed by microwave pretreatment in a specially designed microwave furnace system. Representative samples of the crushed ore underwent stirred mill grinding, with power draw measurements recorded and adjusted to reflect only the specific energy input required for grinding. Particle size distribution was analyzed periodically using laser particle size analysis. In addition, a Box–Behnken design was used to statistically assess the effects of various parameters on the results, ensuring a robust …

Repeated Shifts In Sociality Are Associated With Fine-Tuning Of Highly Conserved And Lineage-Specific Enhancers In A Socially Flexible Bee, Beryl M. Jones, Andrew E. Webb, Scott M. Geib, Sheina Sim, Rena M. Schweizer, Michael G. Branstetter, Jay D. Evans, Sarah D. Kocher

Entomology Faculty Publications

Comparative genomic studies of social insects suggest that changes in gene regulation are associated with evolutionary transitions in social behavior, but the activity of predicted regulatory regions has not been tested empirically. We used self-transcribing active regulatory region sequencing, a high-throughput enhancer discovery tool, to identify and measure the activity of enhancers in the socially variable sweat bee, Lasioglossum albipes. We identified over 36,000 enhancers in the L. albipes genome from 3 social and 3 solitary populations. Many enhancers were identified in only a subset of L. albipes populations, revealing rapid divergence in regulatory regions within this species. Population-specific enhancers …

Open Access In The Age Of Ai: The Journal Of Appalachian Health And Hurricane Helene Recovery, Noah Wren, Bradley Firchow

Journal of Appalachian Health

The recent destruction brought upon the Appalachian region by Hurricane Helene has emphasized the importance of the Journal of Appalachian Health. As an open-access peer-reviewed source of information, the Journal plays a critical role in not only facilitating public health research about Hurricane Helene, but also combating misinformation regarding the event. In the days following Hurricane Helene, misinformation about the federal government’s response, along AI generated images, have left many in the region confused and misled about what had happened. Going forward, the Journal will play an necessary part in making sure accurate information is shared to understand how …

Psychosocial Factors, Stress And Sleep Among Rural Appalachian Kentucky Residents With Type 2 Diabetes Mellitus, Blake Dipaola, Zoe Taylor, Eric Hennemann, Brittany L. Smalls, Philip M. Westgate, Nancy Schoenberg

Journal of Appalachian Health

Introduction: Rural Appalachian residents experience higher rates of most chronic diseases, including type 2 diabetes mellitus (T2DM). Stress and sleep deficiency also are common in the region.

Purpose: To better understand these associated health burdens, the relationship among these conditions and psychosocial factors—such as depressive symptoms, distress, empowerment, and social support—was examined among Appalachian residents with T2DM.

Methods: Using data collected from a community-based sample of Appalachian adults with T2DM, the study examined whether psychosocial factors were associated with perceived stress (Cohen Perceived Stress Scale) and self-reported sleep deficiency (Epworth Sleepiness Scale). Multilevel linear mixed effects regression modeling was used …

Nutrition Education Needs And Barriers Of Uninsured Clients Who Utilize Free Clinics In Western North Carolina, Manan Roy, Alisha Farris, Erin Loy, Lauren Sastre, Danielle L. Nunnery

Journal of Appalachian Health

Introduction: Many uninsured adults rely on free health clinics for prevention and treatment of chronic disease. Little is known about the nutrition education needs of adults served by free health clinics, especially those living in counties within the Western North Carolina Appalachian Mountain Region.

Methods: An in-person survey was distributed to 202 clients of two free health clinics in western North Carolina. Descriptive analyses were conducted to determine frequency distributions for food and physical activity practices, acceptable topics and strategies for nutrition education, and the acceptance and barriers for various modalities.

Results: Depending on the clinic, 49-58% of participants were …

Conditional Deletion Of Ceacam1 In Hepatic Stellate Cells Causes Their Activation, Harrison T. Muturi, Hilda E. Ghadieh, Suman Asalla, Sumona G. Lester, Getachew D. Belew, Sobia Zaidi, Raziyeh Abdolahipour, Abhishek P. Shrestha, Agnes O. Portuphy, Hannah L. Stankus, Raghd Abu Helal, Stefaan Verhulst, Sergio Duarte, Ali Zarrinpar, Leo A. Van Grunsven, Scott L. Friedman, Robert F. Schwabe, Terry D. Hinds, Jr., Sivarajan Kumarasamy, Sonia M. Najjar

Markey Cancer Center Faculty Publications

Objectives: Hepatic CEACAM1 expression declines with advanced hepatic fibrosis stage in patients with metabolic dysfunction-associated steatohepatitis (MASH). Global and hepatocyte-specific deletions of Ceacam1 impair insulin clearance to cause hepatic insulin resistance and steatosis. They also cause hepatic inflammation and fibrosis, a condition characterized by excessive collagen production from activated hepatic stellate cells (HSCs). Given the positive effect of PPARg on CEACAM1 transcription and on HSCs quiescence, the current studies investigated whether CEACAM1 loss from HSCs causes their activation.

Methods: We examined whether lentiviral shRNA-mediated CEACAM1 donwregulation (KD-LX2) activates cultured human LX2 stellate cells. We also generated LratCre þ Cc1fl/fl mutants …

Kentucky Geological Survey Landslide Inventory [2024], Matthew M. Crawford, Evelyn M. Bibbins, Hudson J. Koch

Research Data--KGS

The KGS landslide inventory provides the locations of known landslides and areas susceptible to debris flows. Various types of landslides are represented including slides, flows, rockfalls, and creep. The data are available as ArcGIS geodatabase feature classes. Landslide locations and associated attributes are compiled from Kentucky Geological Survey research, published maps, state and local government agencies, the public, and media reports. A confidence ranking system assigns a value to each feature. A description of the feature classes is here: https://kgs.uky.edu/kgsmap/helpfiles/landslide_help.shtm

The inventory viewed in a GIS with geology, soils, slope or other terrain-based data can serve as a basis for …

Analysis And Design Of Synchronous Machines With Reluctance Rotor And Pm Stator Combined Excitation, Oluwaseun A. Badewa, Dan M. Ionel

Electrical and Computer Engineering Graduate Research

This paper studies motors that are part of a general class of synchronous machines with stator-only excitation including those that may be referred to in recent literature as of the flux switching, variable flux reluctance, or hybrid excitation type. In the studied example machine, the active stator has circumferentially magnetized spoke-type PMs and concentrated toroidal coils for improved slot fill and shortened end turns. A systematic analysis of the mmf produced by the toroidal coils in the stator and open-circuit airgap flux is developed to define feasible polarities of this synchronous motor and to establish that the dominant pole pair …

New Loads And Service Factors For Distribution Transformers Following The Transition To High-Efficiency Heat Pumps, Solar Pv, And Ev Charging, Steven B. Poore, Rosemary E. Alden, Timothy Rooney, Dan M. Ionel

Electrical and Computer Engineering Graduate Research

Replacement of conventional high-power appliances including heating ventilation and air-conditioning (HVAC) and resistive electric water heaters (EWHs) with heat pumps is expected to be implemented long-term to increase energy efficiency. Even with efficiency upgrades, future residential power demand may rise due to increasing electric vehicle (EV) penetration. Extensive experimental data from field demonstrators and regional utilities as well as thousands of synthetically generated loads are utilized to investigate the effect of heat pumps, EV charging, and distributed solar PV on residential power demand and distribution transformers. Values are established for typical rating distribution and connection to multiple houses to study …

Solar Pv And Ev Controls For Reactive Power Support On Large Distribution Systems Modeled With Experimental And Synthetic Loads, Rosemary E. Alden, Malcolm Mcculloch, Dan M. Ionel

Electrical and Computer Engineering Graduate Research

Changes to electric power distribution equipment may be needed to adapt to distributed energy resources (DERs) such as solar photovoltaic (PV) generation and electric vehicle (EV) batteries. Within this paper, an optimization methodology for reactive power support (RPS) controls managed by utilities for EV bi-directional charger power factor and improve substation power quality and voltage across the system is proposed. An IEEE benchmark distribution system, the 123 node test feeder, is modified to include 1,765 experimental residential profiles at typical, high resolution of 15min from smart meters, solar PV generation calculated from weather data, and EV modules based on driver …

Optimal Design And Comparison Of Synchronous Machines With Inner And Outer Reluctance Rotors And Pm Or Dc Stator Combined Excitation, Oluwaseun A. Badewa, Ali Mohammadi, Donovin D. Lewis, Dan M. Ionel

Electrical and Computer Engineering Graduate Research

This paper presents an optimal design and comparative analysis for a toroidally wound reluctance rotor synchronous machine with either PM or DC excitation in the stator. The prototype of the PM version is experimentally evaluated, and its results are used to validate the model of the DC version as they share the same topology. The stator DC-excited synchronous (SDCES) motor is optimized at different outer diameters using large-scale multi-objective differential evolution (DE) and comparatively analyzed at power ratings typical for electric traction and propulsion applications. Its performance at reduced temperatures shows increased efficiency and goodness due to reduced losses, and …

Design Of High-Power Polyphase Pcb Coil Systems For Wireless Power Transfer, Donovin Lewis, Lucas Gastineau, Omer Onar, Malcolm Mcculloch, John F. Eastham, Dan M. Ionel

Electrical and Computer Engineering Graduate Research

Printed circuit board (PCB) coils have been pro- posed prior for implementation as inductive wireless charging coils to minimize size and cost. Utilization of PCBs can allow for a reduced cost, improved manufacturability, and a wide range of geometric customization options. To circumvent material limitations on insulation and thermal performance, parallel paths can be implemented to divide the current per path accordingly. Within this paper, an unconventional high power PCB coil is designed employing all possible techniques for wiring with axial and radial parallel paths with equivalent transposition to minimize circulating currents. Design studies are simulated in 3D finite element …

Two-Level Design Optimization Of Ac Machines With Dc Stator Excitation And Minimal Torque Ripple Using Reluctance Rotor Profile Shaping, Ali Mohammadi, Oluwaseun A. Badewa, Yaser Chulaee, Dan M. Ionel

Electrical and Computer Engineering Graduate Research

Torque ripple mitigation in electric machines is important for a smooth and stable operation, minimize mechanical vibrations, and enhance the overall performance. In this paper, a novel two-level optimization method is proposed for the design of synchronous flux-switching and hybrid excitation machines with an innovative multi-point spline shaping method to minimize the torque ripple. This study uses models that are validated by experimental tests from a prototype with similar topology, and exemplifies the aforementioned optimization process on a 28 pole machine. The analysis results indicate that the torque ripple can be substantially reduced with improved electromagnetic torque of the electric …

Design Of High-Power Polyphase Pcb Coil Systems For Wireless Power Transfer, Donovin D. Lewis, Lucas Gastineau, Omer Onar, Malcolm Mcculloch, John F. Eastham, Dan M. Ionel

Electrical and Computer Engineering Graduate Research

Printed circuit board (PCB) coils have been pro- posed prior for implementation as inductive wireless charging coils to minimize size and cost. Utilization of PCBs can allow for a reduced cost, improved manufacturability, and a wide range of geometric customization options. To circumvent material limitations on insulation and thermal performance, parallel paths can be implemented to divide the current per path accordingly. Within this paper, an unconventional high power PCB coil is designed employing all possible techniques for wiring with axial and radial parallel paths with equivalent transposition to minimize circulating currents. Design studies are simulated in 3D finite element …