Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Engineering (11503)
- Social and Behavioral Sciences (8852)
- Physical Sciences and Mathematics (8745)
- Education (7962)
- Arts and Humanities (6808)
-
- Life Sciences (4977)
- Medicine and Health Sciences (4194)
- Psychology (3506)
- Computer Sciences (2733)
- Business (2719)
- Electrical and Computer Engineering (2203)
- Aerospace Engineering (1772)
- Mechanical Engineering (1702)
- Chemistry (1399)
- Civil and Environmental Engineering (1334)
- Sociology (1330)
- Operations Research, Systems Engineering and Industrial Engineering (1286)
- Physics (1140)
- Communication (1010)
- History (1003)
- Religion (959)
- Higher Education (952)
- Art and Design (947)
- Educational Administration and Supervision (903)
- Educational Leadership (885)
- Biology (868)
- Curriculum and Instruction (832)
- Earth Sciences (826)
- Architecture (803)
- Mormon Studies (787)
- Institution
-
- University of North Dakota (13256)
- Brigham Young University (11126)
- Air Force Institute of Technology (8055)
- Virginia Commonwealth University (7661)
- Mississippi State University (6341)
-
- University of South Carolina (6088)
- Rowan University (3480)
- American University in Cairo (2691)
- University for Business and Technology in Kosovo (2537)
- University of Texas Rio Grande Valley (1846)
- Illinois State University (1786)
- Pepperdine University (1685)
- Florida Institute of Technology (1630)
- City University of New York (CUNY) (1510)
- University of Arkansas Little Rock (1333)
- St. John's University (1105)
- Columbus State University (753)
- Nova Southeastern University (707)
- SASTRA Deemed to be University (218)
- Texas A&M International University (217)
- Seattle Pacific University (14)
- UAlaska System (7)
- CentraCare Health (6)
- Southern Methodist University (4)
- Michigan Technological University (3)
- Utah State University (3)
- Alabama State University (2)
- University of Arkansas, Fayetteville (2)
- Louisiana Tech University (1)
- Keyword
-
- Education (718)
- North Dakota (547)
- United States (459)
- Leadership (407)
- Dissertations (EdD) -- Organizational leadership (382)
-
- Utah (363)
- History (357)
- Machine learning (354)
- #antcenter (348)
- Gender (325)
- Women (277)
- Painting (266)
- Egypt (233)
- Autism (232)
- Depression (230)
- Dissertations (PsyD) -- Psychology (228)
- Art (227)
- Higher education (215)
- Motivation (211)
- Technology (208)
- Optimization (207)
- Mental health (205)
- Cancer (200)
- Identity (196)
- Children (195)
- Memory (194)
- Self-efficacy (187)
- Mormon Church (185)
- Professional development (184)
- Performance (180)
- Publication Year
- File Type
Articles 1921 - 1950 of 74067
Full-Text Articles in Entire DC Network
Exploring The Use Of A Random Forest In Correcting Gfs Tropical Cyclone Landfall Errors, Victoria Grace Maxwell
Exploring The Use Of A Random Forest In Correcting Gfs Tropical Cyclone Landfall Errors, Victoria Grace Maxwell
Theses and Dissertations
While Tropical Cyclone (TC) track forecasting has improved over the years it has been slow. These improvements can be attributed to increased computer capability and better model inputs. Machine learning has been used for forecasting different TC track and intensity. The study here looks to use a Random Forest to predict the TC latitude/longitude “landfall” at 72-hr and quantify improvements to the GFS forecast. Principal Component Analysis was used to reduce the dimensionality of the meteorological variables. Stepwise regression was used to determine the principal components that were important for forecasting landfall. These variables were then tested with a multivariate …
Synthetic Mrna Induced Tf1.17-Specific Antibody Response Against Tritrichomonas Foetus For Preputial Delivery In Bulls, Kenzie Mcatee
Synthetic Mrna Induced Tf1.17-Specific Antibody Response Against Tritrichomonas Foetus For Preputial Delivery In Bulls, Kenzie Mcatee
Theses and Dissertations
Bovine trichomoniasis, caused by Tritrichomonas foetus, remains a persistent reproductive disease in cattle due to asymptomatic carriage in bulls and lack of effective treatments. This thesis evaluated the use of synthetic mRNA to drive expression of TF1.17- specific antibodies, targeting a conserved surface adhesin essential for parasite colonization. Membrane-anchored and secreted IgG1 constructs were transfected into bovine kidney cells, resulting in time-dependent antibody expression verified via NanoLuc luminescence. In vivo, aerosolized mRNA administration to bull calves led to localized antibody expression in preputial secretions. Although immunofluorescence assays detected fluorescence signal, high background limited interpretation of specific binding to T. foetus. …
Family Matters: How Caregiver Influence And Internal Locus Of Control Relate To Academics, Maia Mclin
Family Matters: How Caregiver Influence And Internal Locus Of Control Relate To Academics, Maia Mclin
Theses and Dissertations
Academics in college predicts life outcomes; students from lower socioeconomic status (SES) backgrounds often face greater challenges. One such population, consisting of many individuals from marginalized backgrounds, are those raised by nontraditional parents. This study investigated predictors of academics among 357 college students, examining authoritative parenting style, intrinsic motivation, academic locus of control (LoC), SES, and caregiver type (parental vs. non-traditional). Academics was assessed using two composite scores: 'academic knowledge' (GPA/ACT) and 'compensatory attention' (working memory via n-back task accuracy and attention/concentration via SMALSI-C). Hierarchical regressions revealed that higher authoritative parenting, higher SES, and being raised by biological parents significantly …
Native Bee Communities Within Restored Montane Longleaf Pine Ecosystems, Mary Mcteague
Native Bee Communities Within Restored Montane Longleaf Pine Ecosystems, Mary Mcteague
Theses and Dissertations
Montane longleaf pine ecosystems are remarkably biodiverse and highly understudied. Like other longleaf pine ecosystems, montane longleaf pine forests have faced declines. These ecosystems have been undergoing restoration efforts to reestablish floral understories. Flourishing pollinator communities are essential to successful restoration efforts. This study seeks to understand the influence of site history and characteristics on native bee communities in restored montane longleaf pine ecosystems, and to establish a methodology for creating pollination networks in these ecosystems by using DNA metabarcoding to analyze bee-collected pollen. Our results showed that community composition varied based on month and site history. Site history impacted …
Investigation Of Guayule Resin As An Oil-Based Wood Treatment, Jordan Miller
Investigation Of Guayule Resin As An Oil-Based Wood Treatment, Jordan Miller
Theses and Dissertations
Development of alternative treatments for wood product protection is an ongoing focus throughout the wood products industries. All manufacturers hope to increase the use life of their products, while ensuring that their products do not have a harmful impact on their surrounding environment. One way of approaching this is to source potential components from other agricultural sources. Guayule resin is produced as a by-product of rubber extraction from the guayule plant (Parthenium argentatum). The resin has been reported to have insecticidal and microbial properties, but there are numerous problems with utilization, including how to extract it and apply it due …
Sweetpotato Insect Pests: Virus Vector Management And Rearing, Rachel Emily Morrison
Sweetpotato Insect Pests: Virus Vector Management And Rearing, Rachel Emily Morrison
Theses and Dissertations
Sweetpotatoes (Ipomoea batatas) are vegetatively propagated through slips, making them prone to viral buildup. Aphids are insect pests known for transmitting viruses to crops, which reduces yield. This study examined different options for aphid management to reduce the spread of potyviruses: crop borders, crop oils, and insecticides. However, the results of this research showed that treatments were not successful at reducing the spread of the four potyviruses tested. An additional objective was to establish a colony of banded cucumber beetles (Diabrotica balteata) in the laboratory. These beetles are a leaf-feeding and root-feeding pest of sweet potatoes. Two colonies of banded …
Expanding Access: A College Access Model For English Learners, Amanda Blackwell Mcleod
Expanding Access: A College Access Model For English Learners, Amanda Blackwell Mcleod
Theses and Dissertations
As one of the fastest-growing student populations in K -12 schools, English Learners (EL)s remain significantly underrepresented in postsecondary education. Barriers such as academic preparedness, financial constraints, and sociocultural factors hinder their access to postsecondary education. However, by developing targeted strategies to assist ELs in accessing and completing college, institutions can address these challenges and ensure a more diverse and sustainable student body in the face of declining enrollment. Effective models for helping EL students access college include family engagement, early college exposure, peer mentorship, and student-centered advising. By assisting ELs in accessing college, institutions can strengthen their enrollment efforts, …
Unboxing The Black Box: Graph-Based Interpretability In Transformer Models, Ramak Nassiri
Unboxing The Black Box: Graph-Based Interpretability In Transformer Models, Ramak Nassiri
Theses and Dissertations
This thesis introduces a novel interpretability framework for transformer encoder models by hypothesizing that their internal embedding updates define a state transition system. We propose that transformers implicitly learn token-to-token influence dynamics, which can be analyzed using graph-theoretic methods. To validate this, we construct transition graphs from embedding changes and rank token importance using the PageRank algorithm. We develop two transformer models from scratch: a self-supervised model that incorporates serotype tokens to learn contextualized embeddings, and a supervised model initialized with these embeddings. Cosine similarity analysis of their token influence patterns reveals strong structural alignment, with values exceeding 93%. This …
Assessing Trends In Snap-Authorized Food Retailer Participation And Temporary Losses Using Historical Retailer Data, Adam Nathan
Assessing Trends In Snap-Authorized Food Retailer Participation And Temporary Losses Using Historical Retailer Data, Adam Nathan
Theses and Dissertations
This study provides descriptive statistics for the universe of SNAP-authorized food retailers in the United States between 1996 and 2023 including the number of SNAP-authorized retailers over time as well as the frequency and duration of temporary lapses in SNAP authorization for the average retailer. Results are presented at different geographic levels, by urbanicity, by store type, and by dollar versus non-dollar stores. This study also provides a methodology for achieving these results that can be used by future researchers to utilize the key dataset, the Historical SNAP Retailer Locator dataset (HSARL). Several issues are present in the HSARL data …
Augmenting Healthcare Communication: Context-Aware Ai Frameworks For Clinical Decision Support And Automated Summarization, Subash Neupane
Augmenting Healthcare Communication: Context-Aware Ai Frameworks For Clinical Decision Support And Automated Summarization, Subash Neupane
Theses and Dissertations
Healthcare communication is plagued by fragmented medical knowledge, patient misunderstanding of care plans, and clinician burnout from documentation burdens. These inefficiencies cost the U.S. healthcare system over $300 billion annually due to preventable nonadherence and administrative waste [47, 19]. While Artificial Intelligence (AI) technology like Large Language Models (LLMs) offer potential solutions, existing systems fail to deliver personalized, context-aware guidance or automate documentation without sacrificing accuracy. This dissertation addresses these gaps through three novel context-aware AI frameworks such as MedInsight, ClinicSum, and ClinicDuo. MedInsight leverages a multi-source context augmentation approach to synthesize patient centric medical responses by integrating Electronic Health …
Spawning And Rearing Techniques For Improved Production Of White Crappie (Pomoxis Anularis), Matthew E. Nichols
Spawning And Rearing Techniques For Improved Production Of White Crappie (Pomoxis Anularis), Matthew E. Nichols
Theses and Dissertations
White Crappie (Pomoxis annularis) is a popular species, commonly propagated in hatcheries to support fisheries and supplement natural populations during cyclical declines. However, limited information exists regarding the effects of extended broodstock holding periods (>4 weeks), which are critical for enhancing flexibility in hatchery practices. Furthermore, rearing larval-to-juvenile crappie in outdoor ponds would greatly benefit from optimized fertilization and stocking densities to improve growth and survival rates. Additionally, dietary preferences during early life stages remain poorly understood, yet are essential for maximizing production efficiency. This study found holding broodstock for > 6 weeks can significantly reduce fertilization percentages. We also …
Markov Chain Monte Carlo Techniques– Innovations In Lifetime Data Analysis And Missing Value Imputations, Tobias Omondi Oketch
Markov Chain Monte Carlo Techniques– Innovations In Lifetime Data Analysis And Missing Value Imputations, Tobias Omondi Oketch
Theses and Dissertations
This dissertation develops scalable Bayesian solutions for two critical challenges in modern data analysis: modeling failure times and imputing missing biological data. First, we introduce an adaptive semi-parametric MCMC framework for Weibull lifetime modeling, addressing the lack of conjugate priors and multidimensional sufficient statistics. Using hierarchical modeling and the No-U-Turn Sampler (NUTS) in STAN, we evaluate 24 prior combinations across 72 simulated datasets. The method yields robust parameter estimates under increasing and decreasing hazard rates and proves effective in predicting prostate cancer patient survival. Second, we assess imputation strategies for high-throughput proteomics data, where missingness distorts signal integrity. We compare …
Motivating Factors Leading To Job Satisfaction Of Teacher Assistants And Their Perceptions Of Such, Jon Oswalt
Motivating Factors Leading To Job Satisfaction Of Teacher Assistants And Their Perceptions Of Such, Jon Oswalt
Theses and Dissertations
This research study investigated the role perceptions, motivating factors, and perceptions of job satisfaction from the perspective of elementary teacher assistants. While key in the field of education, research focused on the position of teacher assistant is lacking, suggesting the need for a critical view of the role. A qualitative study was designed to examine the key components of the perceptions of job satisfaction, the motivating factors leading to it, and the perceptions of the position through the lens of the teacher assistant. Five elementary teacher assistants from a single school in a southern state participated in semi-structured interviews. Key …
An Evaluation Of The Mississippi 4-H/Ffa Replacement Beef Heifer Development Contest, Lindsey V. Pansano
An Evaluation Of The Mississippi 4-H/Ffa Replacement Beef Heifer Development Contest, Lindsey V. Pansano
Theses and Dissertations
The Mississippi 4-H/FFA Replacement Beef Heifer Development Contest began in 2008 to provide youth with a contest to showcase their managerial skills relating to beef cattle. This study examined the impact of contest participation on development of life skills, technical skills, and choice of occupation. Youth and parents/guardians reported slight to moderate improvement in life skills. The same groups also agreed that technical skills were improved through contest participation. While most youth did not consider the contest to impact their choice of occupation, all indicated that they are currently involved in the beef cattle industry as adults. Overall, these results …
Timber Price Trends, Transmission, And The Impact On Loblolly Pine Plantation Management In The United States South., Samjhana Panthi
Timber Price Trends, Transmission, And The Impact On Loblolly Pine Plantation Management In The United States South., Samjhana Panthi
Theses and Dissertations
This study analyzed the impact of pine timber price trends on optimal rotation age and price transmission relationship in the timber market in the US South. Price trends and volatilities were incorporated into discounted cash flow analyses to determine stochastic optimal rotation age. The results revealed that negative price trends reduced the optimal rotation age and maximum land expectation values compared with the base case of the Faustmann model's constant timber prices. Also, I performed a vertical price transmission study for the US South pine timber market using a Smooth Transition Autoregressive (STAR) model. Price transmission was linear in the …
Developing Site Index Curves And Exploring Growth Efficiency Variation In Longleaf Pine Planted On Marginal Agricultural Land In Georgia, Usa, Jabryan Pegues
Developing Site Index Curves And Exploring Growth Efficiency Variation In Longleaf Pine Planted On Marginal Agricultural Land In Georgia, Usa, Jabryan Pegues
Theses and Dissertations
With the relative success of the Conservation Reserve Program (CRP), there is a considerable amount of longleaf pine (Pinus palustris Mill.) trees planted on marginal agricultural land, with little to no guides for productivity management. This study was conducted in four distinct age classes of longleaf pine plantations at The Jones Center at Ichauway in Southwest Georgia, USA. Most of these stands were commercially thinned in 2014 and some were impacted by Hurricane Michael in 2018. I developed site index equations to represent growth trajectories of these stands while incorporating growth starting from ground level. Additionally, the concept of tree-level …
Drought Resilience Of Cowpea During Vegetative And Reproductive Stages, Sujan Poudel
Drought Resilience Of Cowpea During Vegetative And Reproductive Stages, Sujan Poudel
Theses and Dissertations
Cowpea (Vigna unguiculata (L.) Walp.) is an important leguminous crop. Exposure to drought can lead to significant reductions in yield and quality. Designing strategies to mitigate the effects of drought requires a comprehensive understanding of how trait variability influences resilience at various crop growth stages. Three experiments were conducted to assess the response and resilience of various cowpea genotypes under control (100% irrigation) and drought (50% irrigation of control for 14 days) conditions during the vegetative (nodulation initiation - V2, and peak branching - V4) and reproductive (flowering - R1, and seed fill - R4) stages. The short-term drought impacted …
Unraveling Quantum Properties Of Novel Two-Dimensional Systems Using A First-Principles Approach, Binod Regmi
Unraveling Quantum Properties Of Novel Two-Dimensional Systems Using A First-Principles Approach, Binod Regmi
Theses and Dissertations
We used first-principles density functional theory (DFT) to investigate the structural, electronic, and magnetic properties of an oxygen crystal in a copper slab, a ferrimagnetic electride with highly tunable magnetic anisotropy energy (MAE), and the Fermi surface analysis of different kagome metal phases. The Perdew-Burke-Ernzerhof (PBE) exchange-correlation functional was used in the Vienna ab initio simulation package (VASP) for all these calculations. Because of dimensionality reduction, the electronic properties of copper change significantly at the two-dimensional (2D) scale due to whichwe observe more reconstruction in the geometry of the Fermi surface. Dimensionality reduction also influences charge transport. Moreover, we present …
Feed-Based Strategies To Improve Poultry Production Efficiency, Anna Kathryn Riggs
Feed-Based Strategies To Improve Poultry Production Efficiency, Anna Kathryn Riggs
Theses and Dissertations
The poultry industry continues to make significant strides in efficiency and innovation, particularly through advancements in nutrition. This thesis explores two key areas within broiler nutrition that are essential to supporting sustainable, cost-effective poultry production. First, the potential of a next-generation exogenous carbohydrase enzyme blend containing beta-mannanase and endo-glucanase is investigated when supplemented into reduced-energy, all-vegetable diets based on corn, soybean meal, and corn distillers dried grains with solubles in male broilers over a 42-day grow-out period, including processing (Chapter II). Second, the thesis examines the use of modeling strategies such as cubic, quadratic, kernel and smoothing spline to predict …
The Effectiveness Of Positive Behavioral Interventions And Supports (Pbis) In Title I Secondary Schools, Robyn Rush-Grace
The Effectiveness Of Positive Behavioral Interventions And Supports (Pbis) In Title I Secondary Schools, Robyn Rush-Grace
Theses and Dissertations
Positive Behavioral Interventions and Supports (PBIS) is grounded in behaviorist theories, particularly Skinner's operant conditioning, which suggests that positive reinforcement can shape behavior over time. PBIS uses a tiered system to address student behavior, providing universal support for all students (Tier 1), targeted interventions for students who need more support (Tier 2), and intensive, individualized interventions for the few students who exhibit the most significant behavioral challenges (Tier 3). The literature on PBIS generally supports its effectiveness in reducing office discipline referrals, suspensions, and expulsions, as well as improving student behavior and overall school climate. Research specific to Title 1 …
Raspberry Cultivar Evaluation Trial In Mississippi, Apphia Santy
Raspberry Cultivar Evaluation Trial In Mississippi, Apphia Santy
Theses and Dissertations
Raspberries (Rubus idaeus) are valued for their flavor, appearance, and nutritional quality. This study evaluated 26 raspberry cultivars over two seasons (2023 and 2024) in Mississippi under a 50% shade-covered system, using organic and conventional fertilization in 7-gallon containers. Cultivars included floricane- and primocane-fruiting types. Data collected included harvest timing, yield, berry weight, soluble solids content (°Brix), titratable acidity, total phenolic content (TPC), and total flavonoid content (TFC). Results showed cultivar differences in yield, berry quality, and antioxidant levels. In 2023, conventionally fertilized plants produced higher yields; in 2024, fertilizer had no impact. Late-season harvests had elevated phytochemicals. ‘Prelude,’ ‘Nova,’ …
Profitability Of No-Till And Cover Cropping For A Corn-Soybean Rotation In The Mississippi Delta Region, William Arthur Sims
Profitability Of No-Till And Cover Cropping For A Corn-Soybean Rotation In The Mississippi Delta Region, William Arthur Sims
Theses and Dissertations
Adverse weather is a significant source of risk for agricultural producers that could potentially be mitigated by no-till and cover cropping practices. This study examined the viability of conventional tillage, cover cropping, and no-till agriculture in the Mississippi Delta by simulating a corn-soybean rotation over a 40-year time period under observed and drought weather conditions, and two prominent soil types in the region using the ALMANAC Crop Modeling Software. On average, a no-till, no cover crop system resulted in the highest profits under both soil types and weather conditions examined. Cover cropping led to higher yields in observed weather conditions …
Site Formation Processes And Lithic Analysis Of The Swag Site (38al137), John Nathan Shores
Site Formation Processes And Lithic Analysis Of The Swag Site (38al137), John Nathan Shores
Theses and Dissertations
Archaeologists working in the American Southeast have limited ability to contribute to the debates regarding the human colonization of the Americas because relatively undisturbed, well stratified, Paleoindian sites with datable material are rare (Miller 2016:712). The archaeological sites in the Allendale-Briar Creek Paleoindian quarry complex along the Savannah River near Martin, SC have produced sites that contain datable archaeological deposits (Anderson et al. 2016; Waters et al. 2009). One such site, the Swag Site, located in Allendale County, South Carolina, is within the Allendale-Briar Creek Paleoindian quarry complex (Goodyear 2018; Goodyear and Charles 1984; Miller et al. 2016; Oscarson et …
Plant, Pollinator, And Bird Communities In Working Landscapes Across The Southeastern United States., Craig Andrew Sklarczyk
Plant, Pollinator, And Bird Communities In Working Landscapes Across The Southeastern United States., Craig Andrew Sklarczyk
Theses and Dissertations
The southeastern U.S. is a hot spot for biodiversity, yet we continue to see losses in numerous species and their important ecosystem functions and services. Because private working landscapes are widespread and important to the southeastern U.S. and Mississippi’s economy, we must ensure we are conserving species on these private lands as well. In this project, We examined two groups of taxa, bird and bee communities, each which perform vital ecosystem functions in two of the most spatially dominant systems (working pine forest and row-crop agriculture) in Alabama and Mississippi. We examined bee communities in set-aside hardwood forests at different …
Confirmatory Factor Analysis Of The Psychopathic Personality Inventory-Revised: Short Form In College-Attending Emerging Adults, Lydia Stanhope
Confirmatory Factor Analysis Of The Psychopathic Personality Inventory-Revised: Short Form In College-Attending Emerging Adults, Lydia Stanhope
Theses and Dissertations
Psychopathy research stems from the work of Dr. Hervey Cleckley, whose research aided in providing the foundation for psychopathy assessments currently utilized in the field. Several researchers used Cleckley’s framework to further home in on characteristics that are central to psychopathy. Among the primary researchers who adapted the characteristics into their own measures are Robert Hare, Paul Frick, and Scott Lilienfeld; the work of these researchers is what helped lead to the creation of the Psychopathic Personality Inventory-Revised: Short Form (PPI-R: SF). The current study aimed to confirm the two-, three-, and eight-factor models from previous versions of the measure …
Assessing Species Status And Genetic Diversity In The Tombigbee Darter (Etheostoma Lachneri), Caroline Nicole Teal
Assessing Species Status And Genetic Diversity In The Tombigbee Darter (Etheostoma Lachneri), Caroline Nicole Teal
Theses and Dissertations
The Tombigbee Darter (Etheostoma lachneri) is the sole member of the snubnose subgenus Ulocentra endemic to the Tombigbee River Watershed of Mississippi and Alabama. Etheostoma lachneri is a species of greatest conservation need, due to suspected population decline since 1994 (Suttkus et al., 1994). To assess the persistence and genetic variability of E. lachneri, a population survey at 40 historical sites in Mississippi was performed. Results showed that 12 out of the 40 sites did not have E. lachneri present. Genomic analyses were conducted for populations across the species range using ddRADseq, revealing the possible complex of three species. To …
Estimating Reliability Of Electric Vehicle Charging Ecosystem Using Principle Of Maximum Entropy, Himanshu Tripathi
Estimating Reliability Of Electric Vehicle Charging Ecosystem Using Principle Of Maximum Entropy, Himanshu Tripathi
Theses and Dissertations
This thesis addresses the challenge of estimating electric vehicle (EV) charging system reliability against unpredictable threats like cyberattacks and extreme weather, where traditional methods fail. We utilize the Principle of Maximum Entropy (PME), a statistical tool that provides unbiased risk estimates using limited information. Applied to the EV charging ecosystem, our case study shows how PME models stress factors to predict failures and optimize maintenance. This approach extends beyond EVs to other complex systems with scarce data, such as smart grids or healthcare devices. By linking uncertainty directly to reliability, PME offers a universal method to improve decision-making under unpredictable …
Optimizing Osb Quality: Assessing The Influence Of Beta-Cyclodextrin With Essential Oil Treatments, Ethan Garrett Turo
Optimizing Osb Quality: Assessing The Influence Of Beta-Cyclodextrin With Essential Oil Treatments, Ethan Garrett Turo
Theses and Dissertations
This study evaluated the mechanical and dimensional performance of oriented strand board (OSB) panels treated with beta-cyclodextrin-essential oil compounds, including betacyclodextrin-only, beta-cyclodextrin-trans-cinnamaldehyde, beta-cyclodextrin-thymol, and betacyclodextrin-nickel. OSB panels were produced using a proprietary spraying system and Dieffenbacher press and tested according to ASTM standards for internal bond strength, modulus of elasticity (MOE), modulus of rupture (MOR), water absorption, and thickness swelling. Results showed that beta-cyclodextrin-trans-cinnamaldehyde enhanced MOE and MOR, while beta-cyclodextrin-thymol significantly improved internal bond strength. Beta-cyclodextrin-nickel demonstrated strong performance in both mechanical strength and water resistance. However, 24-hour submersion results indicated that water resistance may be surface limited. All treatments …
Non-Thermal Dbd Plasma-Induced Co₂ Capture And Conversion To Value Added Chemicals, Chinwendu Theresa Umeojiakor
Non-Thermal Dbd Plasma-Induced Co₂ Capture And Conversion To Value Added Chemicals, Chinwendu Theresa Umeojiakor
Theses and Dissertations
Electrified CO2 conversion via nonthermal dielectric-barrier discharge (DBD) plasma presents a promising pathway for integrating renewable energy into the carbon cycle, addressing the dual challenges of CO2 reduction and sustainable fuel generation. In this research, DBD plasma technology was integrated with a sorbent material and/or catalytic materials for CO2 desorption and conversion. Specifically, with Ni/Al2O3 as the catalyst, we investigated CO2 splitting (CO2 to CO and 0.5O2) and hydrogenation (CO2 and H2 to CO and H2O) under adiabatic and subcooled conditions. We find that CO2 splitting shows higher efficiency than hydrogenation, particularly at relatively lower power inputs. While CO2 hydrogenation …
An Examination Of Potential Occupational Horizons And Site Integrity Through Site Formation Processes At Aklis, St. Croix, Jesse Weaver
An Examination Of Potential Occupational Horizons And Site Integrity Through Site Formation Processes At Aklis, St. Croix, Jesse Weaver
Theses and Dissertations
The Aklis Site, located in the Sandy Point National Wildlife Refuge on St. Croix, contains both an artifact-dense shell midden and numerous human burials actively eroding into the Caribbean Sea. Here I examine the records and collections from the site through the lens of site formation theory to ask: (1) Are there detectable occupational horizons within the midden?; (2) To what extent have cultural and non-cultural transforms affected the integrity of the midden? and; (3) If detected, are these occupational horizons of sound enough integrity to allow for future radiocarbon dating that might clarify culture chronology for the greater West …