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Research Proposal: Complex Relationship Of Religious Community, Psychological Health, And Socioeconomic Status Of Spanish Speaking Residents Ages 18-50 In Lynchburg, Va, Faith Park Jun 2025

Research Proposal: Complex Relationship Of Religious Community, Psychological Health, And Socioeconomic Status Of Spanish Speaking Residents Ages 18-50 In Lynchburg, Va, Faith Park

NEXUS: The Liberty Journal of Interdisciplinary Studies

Previous research has shown a clear quantitative correlation between socioeconomic status and religious gatherings as well as psychological health and religious gatherings. However, there have been few studies on the interconnectedness of mental health, socioeconomic stability, and religious identity and gathering. Research thus has not addressed the personal implications and the benefits of individual perspectives that can be offered through a qualitative methodology. Thus, this research proposes an ethnographic methodology which may provide insights that do not limit the subjectivity of mental health, religious experiences, and socioeconomic struggles.Through an integration of psychology, anthropology, and sociology, the proposed research hopes to …


The Effects Of Study Abroad Programs On Second Language Acquisition (Sla), Isabel Odewald Jun 2025

The Effects Of Study Abroad Programs On Second Language Acquisition (Sla), Isabel Odewald

NEXUS: The Liberty Journal of Interdisciplinary Studies

As study abroad programs have increased annually by 10%, numerous researchers have examined how participation in study abroad programs have affected second language acquisition (SLA) in students (Isabelli-Garcia, et. al, 2018). Reviewing previous literature evaluating the relationship between study abroad programs and undergraduate students overall academic achievement, personal growth, and career preparation, it has been found that study abroad programs impact students academically, emotionally, and cognitively. Specifically focusing on factors such as the duration of study abroad programs, personality of students, students’ motivations, and engagement with peers abroad, the current literature review provides explanations of relevant SLA theoretical frameworks and …


Towards Advanced Sustainable Materials For Onshore And Offshore Petroleum Platforms: A Critical Review Of Technological Integration, Kabir Sadeghi, Hawraa B. Alsaadi Jun 2025

Towards Advanced Sustainable Materials For Onshore And Offshore Petroleum Platforms: A Critical Review Of Technological Integration, Kabir Sadeghi, Hawraa B. Alsaadi

Terra Joule Journal

This review critically synthesizes recent sustainable and high-performance materials advancements applied to onshore and offshore petroleum platforms. The novelty of this work lies in its comprehensive examination of how material innovations intersect with evolving operational demands, ranging from seismic imaging and drilling efficiency to environmental monitoring and energy integration. Special attention is given to deploying high-resolution imaging systems and advanced sensor materials that enhance subsurface visualization while minimizing ecological impact. The use of corrosion-resistant alloys, smart coatings, and composite components has been shown to extend the service life of production equipment and improve reliability under extreme conditions. Furthermore, the integration …


Effects Of Sio2 Nanoparticle Sizes And Concentrations On Enhancing Heat Transfer In Concentrated Solar Collectors: A Cfd Simulation, Husam Abdulrasool Hasan, Hussein Togun, Azher M Abed, Hayder I. Mohammed Jun 2025

Effects Of Sio2 Nanoparticle Sizes And Concentrations On Enhancing Heat Transfer In Concentrated Solar Collectors: A Cfd Simulation, Husam Abdulrasool Hasan, Hussein Togun, Azher M Abed, Hayder I. Mohammed

Terra Joule Journal

This study quantitatively examines the influence of SiO2 nanoparticle concentration and dimensions on the thermal efficiency of a Concentrated Photovoltaic Thermal (CPVT) collector. Computational Fluid Dynamics (CFD) simulations employed water-SiO2 nanofluid with concentrations of 1-4% and nanoparticle sizes of 20-50 nm as the cooling medium in mini-channels beneath photovoltaic cells at Reynolds numbers between 2000 and 18000. The results indicated that elevating the nanoparticle concentration to 4% augmented the Nusselt number by 12.5% relative to pure water, but diminishing the particle size to 20 nm produced an extra 8% enhancement. The peak decrease in photovoltaic surface temperature was …


التعليم المتمايز وأثره على رفع مستوى التفكير الإبداعي في مادة العلوم لدى طالبات الصف السابع الأساسي, Lona Hassan Qasim Alqudah Jun 2025

التعليم المتمايز وأثره على رفع مستوى التفكير الإبداعي في مادة العلوم لدى طالبات الصف السابع الأساسي, Lona Hassan Qasim Alqudah

Journal of the Association of Arab Universities for Research in Higher Education مجلة اتحاد الجامعات العربية للبحوث في التعليم العالي

تهدف هذه الدراسة إلى فهم أثر تطبيق استراتيجية التعليم المتمايز في تحسين مستوى التفكير الإبداعي لدى طالبات الصف السابع الأساسي في مادة العلوم . تم استخدام المنهج شبه التجريبي في مدرسة شجرة الدر الأولى الأساسية للبنات في الزرقاء، الأردن، خلال الفصل الدراسي 2023-2024، حيث شملت الدراسة عينة من 172 طالبة تم تقسيمهن إلى مجموعتين: مجموعة تجريبية تم تدريسها باستخدام استراتيجية التعليم المتمايز ومجموعة ضابطة. بواقع 68 طالبة في كل مجموعة . تم استخدام اختبار تورانس للتفكير الإبداعي الصورة (أ) لقياس تأثير استراتيجية التعليم المتمايز والذي تم تطبيقه على أفراد عينة الدراسة . بعد تحقيق ثبات وصدق الأداة وبعد استخدام الأساليب …


Empowering Tanzanian Education: Personalized And Accessible Test Preparation, Brian Wiebe, Shiv Jhalani Jun 2025

Empowering Tanzanian Education: Personalized And Accessible Test Preparation, Brian Wiebe, Shiv Jhalani

Computer Science and Engineering Senior Theses

Only 20% of students performed well enough on their secondary exams to continue their A-level studies. This challenge exists due to a lack of resources, classroom overcrowding, and absenteeism of the instructors. The project focuses on improving the pass rate for these national exams; we have built an intelligent quiz generating platform that helps Tanzanian students prepare more effectively for exams by meeting user needs including active recall, answer explanations, increasing difficulty, and filtered studying. Students can select the subject, form level, topic, and the difficulty level, and the platform provides different types of questions, including true/false, multiple choice, and …


The Minutes Of The Marshall University Staff Council Meeting, June 2025, Marshall University Staff Council Jun 2025

The Minutes Of The Marshall University Staff Council Meeting, June 2025, Marshall University Staff Council

Staff Council Minutes

No abstract provided.


2d Cuo/Rgo Nanocomposite: A Novel Architecture For Enhanced Cr(Vi) Photo-Reduction, Islam Gomaa, Nasser M. Hosny, Medhat A. Ibrahim Jun 2025

2d Cuo/Rgo Nanocomposite: A Novel Architecture For Enhanced Cr(Vi) Photo-Reduction, Islam Gomaa, Nasser M. Hosny, Medhat A. Ibrahim

Nanotechnology Research Centre

he urgent need for efficient detoxification of carcinogenic hexavalent chromium (Cr(VI)) in aquatic environments has driven the development of advanced photocatalytic materials. This study presents the synthesis of 2D CuO/reduced graphene oxide (rGO) nanocomposite via probe sonication, designed to synergistically enhance the photocatalytic reduction of Cr(VI) to less toxic Cr(III). The nanocomposite was meticulously characterized using XRD, HRTEM, FESEM, XPS, and UV-Vis diffuse reflectance spectroscopy. Structural analysis confirmed the formation of CuO nanosheets (average size: 396 nm, thickness: 6 nm) integrated with rGO, where the rGO acted as an electron acceptor, mitigating charge recombination. XPS revealed Cu²⁺ in CuO and …


Exploring The Very Early Cosmological History With Dark Matter And Primordial Black Holes, Phuc Duc Loc Ngo Jun 2025

Exploring The Very Early Cosmological History With Dark Matter And Primordial Black Holes, Phuc Duc Loc Ngo

Physics & Astronomy ETDs

We explore the possibilities of nonstandard early cosmological histories and their potential roles to explain DM. We study how particle DM is produced with scenarios of early matter domination (EMD), how primordial black holes (PBHs), which could also be a DM candidate in certain mass ranges, are formed with enhanced curvature perturbation or FOPT and the corresponding gravitational wave (GW) signals, how PBHs could increase their mass by accretion during EMD and the corresponding GW signals.


Second-Language Selves, Predictors, And L2 Learning Experience: An Explanatory Mixed-Method Study Of Chinese Stem Students' English Learning Motivation, Zhiqing Lin, Yue Zhang Jun 2025

Second-Language Selves, Predictors, And L2 Learning Experience: An Explanatory Mixed-Method Study Of Chinese Stem Students' English Learning Motivation, Zhiqing Lin, Yue Zhang

Journal of English and Applied Linguistics

Drawing upon the model of the L2 Motivational Self System (L2MSS), this explanatory mixed-method study examined STEM students’ future L2 selves as guiding their motivated experiences. It first proposed a validated structural equation model of 480 participants’ future L2 selves through a large-scale survey. The SEM model highlights the predictive power of attitudes, anxiety, family, and ethnocentrism towards Ideal and Ought-to L2 selves. The model also investigates the moderating effect of gender and first language on the predictive relationship. Then, the study explored the motivational trajectories of five selected survey respondents and how they negotiated their L2 selves across time. …


Uncovering Multiscale Structure-Property Correlations Via Active Learning In Scanning Tunneling Microscopy, Ganesh Narasimha, Deja Kong, Paras Regmi, Rongying Jin, Zheng Gai, Rama Vasudevan, Maxim Ziatdinov Jun 2025

Uncovering Multiscale Structure-Property Correlations Via Active Learning In Scanning Tunneling Microscopy, Ganesh Narasimha, Deja Kong, Paras Regmi, Rongying Jin, Zheng Gai, Rama Vasudevan, Maxim Ziatdinov

Faculty Publications

Atomic arrangements and local sub-structures fundamentally influence emergent material functionalities. These structures are conventionally probed using spatially resolved studies and the property correlations are deciphered by a researcher based on sequential explorations, thereby limiting the efficiency and scope. Here we demonstrate a multi-scale Bayesian deep-learning based framework that automatically correlates material structure with its electronic properties using scanning tunneling microscopy (STM) measurements in real-time. Its predictions are used to autonomously direct exploration toward regions of the sample that optimize a given material property. This method is deployed on a low-temperature ultra-high vacuum STM to understand the structure-property relationship in a …


An Evaluation Of Check-In/Check-Out For Children With Emotional And Behavioral Disorders, Norma E. Guillen Jun 2025

An Evaluation Of Check-In/Check-Out For Children With Emotional And Behavioral Disorders, Norma E. Guillen

USF Tampa Graduate Theses and Dissertations

Children with emotional and behavioral disorders (EBD) often display disruptive behavior that can hinder their learning and negatively affect the classroom environment. Check-in/Check-Out (CICO) is a Tier-2, evidence-based intervention designed to support children who have difficulty engaging in classroom activities and are at-risk of developing more severe challenging behavior. The primary goal of the intervention is to prevent the escalation of these behaviors and reduce the need for more intensive individualized interventions. However, limited research exists on the effectiveness of CICO for children with emotional and behavioral disorders (EBD). This study examined the effects of CICO on improving on-task behavior …


Sea Turtle Nesting On Nourished Beaches With Different Construction Designs: A Case Study In Southeast Florida, Usa., Lara Novalvos Hernandez Jun 2025

Sea Turtle Nesting On Nourished Beaches With Different Construction Designs: A Case Study In Southeast Florida, Usa., Lara Novalvos Hernandez

USF Tampa Graduate Theses and Dissertations

This study examines the influences of different beach nourishment designs and subsequent post-nourishment profile adjustments on loggerhead (Caretta caretta) and green (Chelonia mydas) sea turtles nest survival and reproductive success. Data on time-series post-nourishment beach-profile changes, positions and elevations of turtle tracks and nest/false-crawl apices, and sea turtle nest hatch/emergence success were collected on five high density nesting beaches along the east coast of Florida: Melbourne Beach, Jensen Beach, Jupiter Island Beach, Juno Beach, and South Hutchinson Island Beach. The field data collection was conducted in 2018, 2019, 2021, and 2022 with the main goal of documenting and comparing turtle …


Behavior And Land Use Of Eastern Gray Squirrels In Urban And Suburban Environments, Laura F. Engel Jun 2025

Behavior And Land Use Of Eastern Gray Squirrels In Urban And Suburban Environments, Laura F. Engel

USF Tampa Graduate Theses and Dissertations

Urbanization has significantly altered natural habitats, impacting wildlife behavior and distribution. This study examines the behavior and land use of eastern gray squirrels (Sciurus carolinensis) in urban and suburban environments at the University of South Florida. Using a combination of point count surveys and time-activity budgets, squirrel presence was assessed in relation to tree genera, nest locations, human activity, and infrastructure. Results indicate a significant association between squirrel presence and tree genera, with a preference for Quercus species, as well as a strong positive correlation between human infrastructure and squirrel presence. However, no significant relationship was found between human presence …


Usu Luminescence Lab Project 356: Durango Colorado Glacial And Fluvial Deposit Luminescence Age Results, Tammy M. Rittenour Jun 2025

Usu Luminescence Lab Project 356: Durango Colorado Glacial And Fluvial Deposit Luminescence Age Results, Tammy M. Rittenour

Browse all Datasets

Luminescence dating of outwash terraces and glacial moraines. Project investigated the age of older (Bull Lake?) glacial advance sequences near Durango Colorado. Project was supervised by Dr. Jon Harvey at Fort Lewis College. Research was part of an undergraduate research project conducted by Josh Lingbloom.


Redefining Gender Equality: A Senegalese Conversation With Islam, Seulgie Lim Jun 2025

Redefining Gender Equality: A Senegalese Conversation With Islam, Seulgie Lim

All Faculty Scholarship

How do Muslim women balance their religious agency and political aspirations? Gender quotas have been used across the African continent to improve women's political visibility since the 1990s. Senegal's own experiment with gender equality in 2010 faced political barriers as well as religious ones. The author sheds light on how Muslim women activists in Senegal shaped women's place in their communities through the gender parity law. Based on multiple fieldwork visits from 2016 to 2018 and individual interviews with activists and scholars involved in the movement to make gender parity the law in Senegal, the author argues that while Islam …


Community Engagement In Digital Banking: Insights From Jakarta And Perth, Safaruddin Husada, Ulani Yunus, Latifa Ramonita, Mark Mcmahon Jun 2025

Community Engagement In Digital Banking: Insights From Jakarta And Perth, Safaruddin Husada, Ulani Yunus, Latifa Ramonita, Mark Mcmahon

Research outputs 2022 to 2026

Background: In the digital era, community engagement plays a pivotal role in driving market share expansion in the banking sector, yet the impact of such initiatives across diverse regulatory and cultural contexts remains underexplored. Purpose: This study examines the influence of community engagement on the digital bank market share in Jakarta, Indonesia, and Perth, Australia, while addressing disparities in digital access and customer experience. Methods: Employing a quantitative methodology, the study analyzed structured surveys from 300 respondents (150 each from Jakarta and Perth) to uncover relationships between community engagement and market expansion. Results: Findings reveal that robust community engagement significantly …


A Roadmap To Good Practice For Training Supervisors And Leadership: A European Perspective, Seán Lacey, Tamarinde Haven, Rita Santos, Tom Farrelly, Máiréad Murray, Panagiotis Kavouras Jun 2025

A Roadmap To Good Practice For Training Supervisors And Leadership: A European Perspective, Seán Lacey, Tamarinde Haven, Rita Santos, Tom Farrelly, Máiréad Murray, Panagiotis Kavouras

Publications

Purpose: Supervision and leadership are regarded to have a major role in promoting responsible research. Various approaches to training for supervisors and leaders have been proposed. However, little is known about what works best, what kind of hurdles are faced in implementation and engagement, and what methods of assessing the effectiveness of training programs are available. Through exploring these points, this research aims to propose a roadmap to good practice for training supervisors and leadership.

Design: A virtual marketplace for exchanging current practices and approaches for training supervisors and leadership took place in March 2024. Twenty-two policy makers from thirteen …


2025 June 19 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University Jun 2025

2025 June 19 - Tennessee Weekly Drought Summary, Tennessee Climate Office, East Tennessee State University

Tennessee Climate Office Weekly Drought Summaries

No abstract provided.


From The Amazon To The Andes: Paleoclimatic And Paleoenvironmental Changes Recorded By Sedimentary Biomarkers Since The Late Pleistocene, Alessandro Antúnez De Mayolo Mauceri Jun 2025

From The Amazon To The Andes: Paleoclimatic And Paleoenvironmental Changes Recorded By Sedimentary Biomarkers Since The Late Pleistocene, Alessandro Antúnez De Mayolo Mauceri

Arts & Sciences Graduate Student Theses and Dissertations

The South American tropics encompass some of Earth's most diverse and dynamic landscapes, from tropical glaciers and arid deserts to savannahs, shrublands, and the planet’s largest and most biodiverse rainforest—spread across a vast climatic and topographic gradient. These biomes provide vital natural resources that sustain communities, bolster economies, and serve as key components of the global hydrologic and carbon cycles. Despite their environmental and socioeconomic importance, these tropical systems are highly vulnerable to contemporary and future climate change and its cascading impacts. Adding to this challenge, the scarcity and short duration of instrumental climate records from this region pose major …


Experimental Study Of The Effect Of Intelligent Exercise App On Tgmd-3 In Children With Developmental Delay, Jiayu Zhou Jun 2025

Experimental Study Of The Effect Of Intelligent Exercise App On Tgmd-3 In Children With Developmental Delay, Jiayu Zhou

International Symposium of Adapted Physical Activity and International Symposium on Physical Activity and Visual Impairment and Deafblindness

简介:众所周知

方法:使用实验方法,访谈方法和数学统计方法协调,灵敏度

结果: TGMD -3 t = -8.55,P

结论:智能运动干预可以有效地提高3至6岁儿童运动迟缓的基本运动技能,并显着提高运动技能和控制技能。同时,定期的亲子运动可以改善父母和孩子之间的交流和交流,并,并,并改善亲子关系。

关键字:基本电机技能;电动机阻滞。


Review: The Year Of Miss Agnes, Rachel Schwedt, Rachel Schwedt Jun 2025

Review: The Year Of Miss Agnes, Rachel Schwedt, Rachel Schwedt

Ages 10-12

Acceptance, Caring, Community, Cooperation, Creativity, Dignity, Encouragement, Inspiration, Pride, Respect, Self-acceptance


Review: Navigating Early, Rachel Schwedt, Janice Delong Jun 2025

Review: Navigating Early, Rachel Schwedt, Janice Delong

Ages 10-12

Boldness, Cooperation, Coping, Courage, Determination, Faithfulness, Family love, Friendship, Hope, Imagination, Ingenuity, Initiative, Knowledge, Loyalty, Maturity, Passion, Resolve, Sacrifice, Self-acceptance, Strength, Survival (Physical, Survival (Emotional), Trustworthiness, Wonder


An Integrated Geophysical Approach For Estimating The Depth Of Mineral Potential In Some Part Of Basement Complex Terrain Southwestern Nigeria, Hamid Titilope Oladunjoye, Joseph Coker, Niyi-Ola Adebisi, Omolara Abosede Adenuga, Sofiat Adetomilola Adekoya, Aderemi Alabi, Abisola Akinmoladun Jun 2025

An Integrated Geophysical Approach For Estimating The Depth Of Mineral Potential In Some Part Of Basement Complex Terrain Southwestern Nigeria, Hamid Titilope Oladunjoye, Joseph Coker, Niyi-Ola Adebisi, Omolara Abosede Adenuga, Sofiat Adetomilola Adekoya, Aderemi Alabi, Abisola Akinmoladun

Al-Bahir

Effective mineral exploration in a basement complex necessitates precise delineation of overburden thickness and mineral potential within the Basement Complex terrain. This study examined the subsurface geology and assesses the abundance of prospective mineral deposits within the study area The objective of the study was to outline the overburden thickness and infer mineral potential using integrated ground magnetic and electrical resistivity geophysical methods. The electrical resistivity method unraveled the litho-stratigraphic sequence as surmised from geo-electric layers. Consequently, the mineralization of the basement delineated was characterized by the magnetic method. The acquired data were processed using WINRESIST and Oasis Montaj respectively. …


Hydrochemical Assessment And Geospatial Analysis Of Borehole Water Quality In Effurun, Delta State, Nigeria, Ojo Odunayo Tope, Ike Joy Chiaka, Austin Emeka Okoli, Namdie Joseph Inyang Jun 2025

Hydrochemical Assessment And Geospatial Analysis Of Borehole Water Quality In Effurun, Delta State, Nigeria, Ojo Odunayo Tope, Ike Joy Chiaka, Austin Emeka Okoli, Namdie Joseph Inyang

Al-Bahir

Borehole water is a primary drinking water source in Effurun, Delta State, Nigeria, making its quality a critical public health concern. Contaminants such as major ions and trace metals can affect water safety, necessitating comprehensive assessment. This study evaluates the hydrochemical characteristics of borehole water, identifies contamination sources, and assesses compliance with World Health Organization (WHO) and Nigerian Standard for Drinking Water Quality (NSDWQ) guidelines. The study aims to determine the spatial distribution of major ions and trace metals in borehole water, assess water quality variations, and identify contamination patterns due to natural and anthropogenic influences. Water samples were collected …


Timss 2023 Australia. Volume Ii: Student And School Characteristics, Nicole Wernert, Sima Rodrigues, Marina Schmid, Catherine Underwood Jun 2025

Timss 2023 Australia. Volume Ii: Student And School Characteristics, Nicole Wernert, Sima Rodrigues, Marina Schmid, Catherine Underwood

TIMSS 2023

This is the second of 2 reports that look at the results of TIMSS 2023 and Australia’s performance. This report, Volume II, presents the results from the contextual questionnaires, and examines the home, school, and classroom contexts in which learning and achievement occur, as well as student attitudes. Each chapter focuses on different indicators concerning the school community; the school learning environment; mathematics and science teacher characteristics; mathematics and science classroom learning environments; and, students’ attitudes and beliefs and use of technology. Together, the different indicators of student and school life illustrate some of the many key aspects that make …


Teachers’ Perceptions Of The Benefits Of Art Education For Elementary Students With Autism, Brenda Lynn Miller Jun 2025

Teachers’ Perceptions Of The Benefits Of Art Education For Elementary Students With Autism, Brenda Lynn Miller

Walden Dissertations and Doctoral Studies

The problem addressed in this study was the lack of knowledge regarding art teachers’ perceptions of the social and emotional benefits of art classes for elementary school students with autism spectrum disorder (ASD). The purpose of this basic qualitative study was to explore elementary school art teachers’ perspectives regarding the social and emotional benefits of school-based art education for elementary school students with ASD. Schweizer et al.’s art therapy model was the conceptual framework. Semistructured interviews from 12 elementary school art teachers were used to collect data. Data were analyzed using axial coding procedures and thematic analysis. Results produced the …


Predicting Single-Leg Eccentric Hamstrings Strength In Aging Athletes Using Diagnostic Ultrasound- And Survey-Derived Parameters, Lee J. Hinkle Jun 2025

Predicting Single-Leg Eccentric Hamstrings Strength In Aging Athletes Using Diagnostic Ultrasound- And Survey-Derived Parameters, Lee J. Hinkle

Theses and Dissertations

Introduction: Eccentric hamstring strength declines with age and contributes to mobility limitations. Although Nordbord testing quantifies eccentric strength, few studies have examined it in older adults, and none have predicted strength performance on this test using ultrasound or survey- based measures. Methods: We recruited 122 senior athletes (60 female) at the 2024 Huntsman World Senior Games. Ultrasound-derived cross-sectional area (CSA), echogenicity, and subcutaneous fat thickness, along with demographic and activity data, were used to predict single-leg peak force using Bayesian regression. Models were sex-stratified, and predictors were selected using leave-one-out cross-validation (LOO IC). Results: In males, CSA, age, leg side, …


Advancements In Fabry-Pérot Cavity Fabrication And Its Applications In Photothermal Spectroscopy For Trace Gas Sensing., Giulia Malvicini Jun 2025

Advancements In Fabry-Pérot Cavity Fabrication And Its Applications In Photothermal Spectroscopy For Trace Gas Sensing., Giulia Malvicini

Theses

The detection of trace gases is essential in various applications, from environmental monitoring and industrial process control to medical diagnostics. The need for high-sensitivity, compact, and costeffective gas sensing systems drives continuous advancements in sensor technology. Among optical sensors, photothermal spectroscopy (PTS) offers distinct advantages, detecting the indirect effects of thermal waves induced in the sample by exciting the molecules with a laser. More particularly, photothermal interferometry (PTI) uses interferometric methods, such as the Fabry-Pérot (FP) interferometer for the read-out.


Characterization Of Ultra-High-Speed Friction Stir Welds Made In Thin Sheet Aa6061-T4 Material, Todd Grant Lainhart Jun 2025

Characterization Of Ultra-High-Speed Friction Stir Welds Made In Thin Sheet Aa6061-T4 Material, Todd Grant Lainhart

Theses and Dissertations

Friction stir lap welding (FSLW) of thin aluminum sheets in industry and in research has faced challenges in weld quality that limit welding speeds. Interfacial defects such as hooking and thinning are common defects that appear at the interface of FSLW, and researchers and process operators have traditionally reduced process parameters such as feed rate and spindle rotation to fully eliminate the defects. While such measures are successful in creating fully consolidated FSLW, feed rates for FSLW have stagnated around 1 mpm with the fastest feed rates recorded at 3 mpm, making it difficult for manufacturers to implement FSLW in …