Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2024

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 70231 - 70260 of 71419

Full-Text Articles in Entire DC Network

Nsu Florida Student Handbook 2024–2025, Nova Southeastern University Jan 2024

Nsu Florida Student Handbook 2024–2025, Nova Southeastern University

NSU Student Handbooks

Nova Southeastern University is accredited by the Commission on Colleges of the Southern Association of Colleges and Schools to award associate’s, bachelor’s, master’s, educational specialist, and  doctoral degrees.

This handbook and the policies and programs set forth herein are effective through the academic year 2024–2025 or until superseded. Changes in the content of the student handbook may be made, at anytime, by the university, division, or college administration. Adequate notice of anticipated changes will be given to the student, whenever possible. This student handbook supersedes all previous handbooks, documents, and directives where they may be in conflict. The student handbook …


The Feasibility Of Motion Tracking Camera System For Magnetic Suspension Wind Tunnel Tests, Hisham M. Shehata, David Cox, Mark Schoenenberger, Colin Britcher, Eli Shellabarger, Timothy Schott, Brendan Mcgovern Jan 2024

The Feasibility Of Motion Tracking Camera System For Magnetic Suspension Wind Tunnel Tests, Hisham M. Shehata, David Cox, Mark Schoenenberger, Colin Britcher, Eli Shellabarger, Timothy Schott, Brendan Mcgovern

Mechanical & Aerospace Engineering Faculty Publications

The Entry Systems Modeling (ESM) Program at NASA has actively participated in the re-development of the Magnetic Suspension Balance System (MSBS) at the six-inch subsonic wind tunnel at NASA Langley Research Center. This initiative aims to enhance the MSBS system's capabilities, enabling the testing of stingless entry vehicle models at supersonic speeds. To achieve this, control algorithms are required to ensure magnetic levitation control and stability for models during free-oscillation dynamic responses. Currently, the system relies on electromagnetic position sensors to provide real-time 3 degrees of freedom control of a rigid body. While this approach has proven successful for subsonic …


Development Of A Two-Finger Haptic Robotic Hand With Novel Stiffness Detection And Impedance Control, Vahid Mohammadi, Ramin Shahbad, Mojtaba Hosseini, Mohammad Hossein Gholampour, Saeed Shiry Ghidary, Farshid Najafi, Ahad Behboodi Jan 2024

Development Of A Two-Finger Haptic Robotic Hand With Novel Stiffness Detection And Impedance Control, Vahid Mohammadi, Ramin Shahbad, Mojtaba Hosseini, Mohammad Hossein Gholampour, Saeed Shiry Ghidary, Farshid Najafi, Ahad Behboodi

Mechanical & Aerospace Engineering Faculty Publications

Haptic hands and grippers, designed to enable skillful object manipulation, are pivotal for high-precision interaction with environments. These technologies are particularly vital in fields such as minimally invasive surgery, where they enhance surgical accuracy and tactile feedback: in the development of advanced prosthetic limbs, offering users improved functionality and a more natural sense of touch, and within industrial automation and manufacturing, they contribute to more efficient, safe, and flexible production processes. This paper presents the development of a two-finger robotic hand that employs simple yet precise strategies to manipulate objects without damaging or dropping them. Our innovative approach fused force-sensitive …


Parametric Optimization Of Friction Stir Welding Of Aa6061-T6 Samples Using The Copper Donor Stir-Assisted Material Method, Aiman H. Al-Allaq, Joseph Maniscalco, Srinivasa Naik Bhukya, Zhenhua Wu, Abdelmageed Elmustafa Jan 2024

Parametric Optimization Of Friction Stir Welding Of Aa6061-T6 Samples Using The Copper Donor Stir-Assisted Material Method, Aiman H. Al-Allaq, Joseph Maniscalco, Srinivasa Naik Bhukya, Zhenhua Wu, Abdelmageed Elmustafa

Mechanical & Aerospace Engineering Faculty Publications

This study presents an optimization of the process parameters for the effect of copper (Cu) donor material percentage on the friction stir welding (FSW) of AA6061-T6 alloy. Extensive factorial experiments were conducted to determine the significance of the rotational speed (ω), the transverse speed (v), the interface coefficient of friction (μ), and the Cu donor material percentage in the plunge, left, right, and downstream zones. Design Expert 13 software was used to identify the number of simulation experiments to be conducted using the Abaqus simulation software. From Design Expert 13, which is a thorough multi-objective optimization analysis software, we were …


Factors Affecting Electrocoagulation Process For Different Water Types: A Review, Shahad Fadhil Abed Al-Rubaye, Naseer A. Alhaboubi, Aiman H. Al-Allaq Jan 2024

Factors Affecting Electrocoagulation Process For Different Water Types: A Review, Shahad Fadhil Abed Al-Rubaye, Naseer A. Alhaboubi, Aiman H. Al-Allaq

Mechanical & Aerospace Engineering Faculty Publications

Raw water must meet specific physical, chemical, and biological requirements to be suitable for drinking. There are various techniques available for treating wastewater, and aside from conventional methods that involve chemicals, electrocoagulation is an efficient and advanced approach. Electrocoagulation has proven effective in treating many pollutants, including bacteria, viruses, iron, fluoride, sulfate, boron, hardness, and turbidity. Total suspended solids, organic and inorganic materials, chemical oxygen demand COD, biochemical oxygen demand BOD, and color. It finds extensive application in treating different types of water and wastewater due to its exceptional ability to remove diverse contaminants. Recently, electrocoagulation has garnered significant attention …


The Effect Of Asynchronous Pre-Service Training On Aac Strategy Use, Cheri Dodge Chin Jan 2024

The Effect Of Asynchronous Pre-Service Training On Aac Strategy Use, Cheri Dodge Chin

Murray State Theses and Dissertations

This dissertation investigates the impact of a one-time online, asynchronous training program on graduate students' use of communication partner strategies for Augmentative and Alternative Communication (AAC) users. The study examines the training effect on the overall correct usage of naturalistic communication partner strategies, the implementation immediacy, the influence of feedback, and the training's benefits and drawbacks. Using an A-B single case research design with qualitative feedback, the study included pre-service university students studying speech pathology or education. Participants engaged in storybook reading activities with communication devices at a university clinic to establish baseline measures. Following this, they completed a one-hour …


Factors That Influence Males To Teach Agricultural Education, Ashley Thoron Jan 2024

Factors That Influence Males To Teach Agricultural Education, Ashley Thoron

Murray State Theses and Dissertations

The need for more males entering the teaching profession is linked to the idea of the gender gap in school with females outperforming males, and the need for young men to have strong role models. Therefore, the purpose of this study is to determine factors that influence males to teach agricultural education. This study utilized an adapted version of the Ag-Ed FIT Choice Instrument to collect data through a modified version of Dillman’s Tailored Design Method, with three contacts of a pre-notice letter, emailed instrument, and a thank you/reminder. The population consisted of male agricultural education students enrolled in teacher …


A Statewide Examination Of Racial Equity, Culturally Responsive Teaching, And Career Technical Education Outcomes In Kentucky, Reginald L. Mcdaniel Jr. Jan 2024

A Statewide Examination Of Racial Equity, Culturally Responsive Teaching, And Career Technical Education Outcomes In Kentucky, Reginald L. Mcdaniel Jr.

Murray State Theses and Dissertations

This study examines the implementation of Racial Equity Policies (REP) and Culturally Responsive Teaching (CRT) practices in Career and Technical Education (CTE) across the Commonwealth of Kentucky's public school districts. This quantitative research incorporates perspectives from district leaders, educators, and administrators, exploring the interplay between racial equity policies and teaching practices. The study highlighted the influential role of district leaders in shaping positive perceptions and awareness of the tools available to support equity work. The study also revealed disparities among districts, with urban areas leading integration, while rural districts express confidence in their commitment to racial equity.

The study's practical …


Listen Up: Perceptions Of Audiobooks By Teachers, Librarians, And Parents, Megan Bright Jan 2024

Listen Up: Perceptions Of Audiobooks By Teachers, Librarians, And Parents, Megan Bright

Murray State Theses and Dissertations

Reading is a critical component of education. From learning to read, to eventually reading to learn, students and teachers rely upon texts to help make sense of the world around them. Methods and tools vary, but teachers, librarians, and parents can all agree that reading is a fundamental skill their students need. However, students are sometimes told to limit their use of audiobooks in favor of reading with their eyes. These limitations may prevent students from finding the books they love and also limit students’ opportunities to use books to learn about the world around them. This study sought to …


K-5 Educators’ Perceptions Of Restorative Practices In St. Louis, Missouri, Jessica Ellen Finney Jan 2024

K-5 Educators’ Perceptions Of Restorative Practices In St. Louis, Missouri, Jessica Ellen Finney

Murray State Theses and Dissertations

Restoration is any form of guidance or counsel toward right decision-making. One can be restored in an emotional or psychological way. The act of restoring emotional reactions back to logical thinking are the core teachings of this paper. The objective of this study was to analyze K-5 educators’ lived experiences, opinions, and perceptions in regard to this social and emotional restoration of teaching. This study advocates teacher perspectives in the art of restorative teaching and thinking for students they teach. This qualitative research study provides insight into the perceptions, opinions, and lived experiences of 10 educators regarding the implementation of …


Examining Stigma In Rural Mental Health Care Settings: A Mixed Methods Approach, Lainie Krumenacker Jan 2024

Examining Stigma In Rural Mental Health Care Settings: A Mixed Methods Approach, Lainie Krumenacker

Murray State Theses and Dissertations

More than half of Americans will be diagnosed with a mental illness in their lifetime (CDC, 2021), yet stigma towards mental health affects both patients and providers. Although programs exist to address stigma, improve cultural competency among providers, and educate families on the importance of support, facilities are often limited on programs they provide due to allocation of resources and funds. Without a shift in treatment and programing, stigma will continue to impact patient care and outcome.

This study explored stigma among mental health providers in rural communities, while exploring potential differences in treatment among patients due to race. Mental …


The Effect Of Extracurricular Involvement On Teacher Job Satisfaction And Self-Efficacy, Andrew Entrekin Jan 2024

The Effect Of Extracurricular Involvement On Teacher Job Satisfaction And Self-Efficacy, Andrew Entrekin

Murray State Theses and Dissertations

This dissertation investigates the effect of teachers' extracurricular involvement on their job satisfaction and self-efficacy. It analyzes a single school district in Alabama and investigates potential factors in the declining teacher graduation rates and high teacher turnover in Alabama. This study addresses the gap in the existing research on how these extracurricular roles influence teachers’ professional well-being and self-efficacy.

The research implemented a quantitative approach, using abbreviated versions of Bandura’s Teacher Self-Efficacy Survey and the Teacher Job Satisfaction Questionnaire to measure how those metrics are affected by coaching a sport or sponsoring an extracurricular club or organization. Analysis of Variance …


Does Taking Cte Courses Affect High School Graduation Rates?, Jimmy Artrip Jan 2024

Does Taking Cte Courses Affect High School Graduation Rates?, Jimmy Artrip

Murray State Theses and Dissertations

This dissertation investigates the impact of Career and Technical Education (CTE) courses on high school graduation rates. As educational institutions look for ways to increase graduation rates and student engagement, CTE has emerged as a viable strategy. CTE aims to equip students with practical skills and post-secondary career and technical education while improving attitudes toward the educational environment. This study uses a mixed-methods approach, combining quantitative analysis of graduation rates from the school district with qualitative data gained through interviews with graduating students. Results indicate a statistically significant increase in graduation rates and improved outlooks and attitudes among students enrolled …


Stakeholder Engagement: Challenges, Metrics, And Tactical Solutions In Higher Education Strategic Planning, Stephanie Miller Gillen Jan 2024

Stakeholder Engagement: Challenges, Metrics, And Tactical Solutions In Higher Education Strategic Planning, Stephanie Miller Gillen

Murray State Theses and Dissertations

Effective stakeholder engagement is critical in higher education strategic planning, particularly as institutions face challenges such as changing demographics, technological advances, and evolving student expectations. This study explores the complexities of engaging diverse stakeholders, including students, faculty, community members, and governance, in the strategic planning process. Using a qualitative approach, the research examines how stakeholder engagement practices contribute to the development of strategic plans. The study emphasizes the importance of moving beyond superficial engagement to foster genuine collaboration and accountability, ultimately enhancing higher education institutions' adaptability. The research provides valuable insights for institutions aiming to enhance the efficacy of the …


University Student Worker Productivity: A Qualitative Analysis, Amanda S. Mansfield Jan 2024

University Student Worker Productivity: A Qualitative Analysis, Amanda S. Mansfield

Murray State Theses and Dissertations

Student worker productivity is an important aspect of higher education, since many functional units rely on student employees to operate. Student workers communicate with all stakeholders of universities, including incoming and current students and their families, alumni, faculty, staff, and community members. Universities facing issues related to budgeting, enrollment, retention, and employability of their graduates can combat those issues by strengthening the largest labor pool on campus, student workers. The study explored what it means to be a productive university student worker within the framework of Social Exchange Theory and Grounded Theory. The study sought to provide recommendations to universities …


Atomically Dispersed Zeolite-Supported Rhodium Complex: Selective And Stable Catalyst For Acetylene Semi-Hydrogenation, Yuxin Zhao, Özge D. Bozkurt, Samira F. Kurtoğlu-Öztulum, Melisa Su Yordanli, Adam S. Hoffman, Jiyun Hong, Jorge E. Perez-Aguilar, Aylin Saltuk, Deniz Akgül, Tülay Ateşin Jan 2024

Atomically Dispersed Zeolite-Supported Rhodium Complex: Selective And Stable Catalyst For Acetylene Semi-Hydrogenation, Yuxin Zhao, Özge D. Bozkurt, Samira F. Kurtoğlu-Öztulum, Melisa Su Yordanli, Adam S. Hoffman, Jiyun Hong, Jorge E. Perez-Aguilar, Aylin Saltuk, Deniz Akgül, Tülay Ateşin

School of Integrative Biological & Chemical Sciences (Formerly Dept. of Chemistry)

Highlights

  • Rhodium has heretofore been known to be unselective for acetylene semi-hydrogenation.

  • Electronic properties of rhodium are tuned by choice of support and metal nuclearity.

  • Selectivity is maximized when Rh is atomically dispersed on a weak electron donor.

  • Zeolite-supported Rh complex with C2H2 ligands offers a stable C2H4 selectivity > 90 %.

  • Results demonstrate unprecedented catalytic properties of Rh for semi-hydrogenation.

Abstract

Supported rhodium catalysts are known to be unselective for semi-hydrogenation reactions. Here, by tuning the electronic structure of supported mononuclear rhodium sites determined by the metal nuclearity and the electron-donor properties of the support, we report that atomically dispersed …


A Constant Dance: A Social Practice Perspective Of Frontline Responsible Management, Jason K. Coker Jan 2024

A Constant Dance: A Social Practice Perspective Of Frontline Responsible Management, Jason K. Coker

Electronic Theses and Dissertations 2020 - Present

There is a growing interest and attention for organizations to move from a shareholder capitalist to stakeholder capitalist business model, in which delivering environmental, social, and governance (ESG) performance is becoming more pronounced. Because of this transition, there is growing pressure for managers at all levels to act in sustainable, socially responsible, and ethical (SRE) ways; yet the current management models are based on maximizing economic value and scientific management. Therefore, the attempts to try and manage 21st century organizations with 20th century management practices and the aspirations of responsible management education have not demonstrated the desired effect (Laasch & …


Action Identification And It’S Relation To Homosexual Identity Formation, Matthew E. Abate Jan 2024

Action Identification And It’S Relation To Homosexual Identity Formation, Matthew E. Abate

Electronic Theses and Dissertations 2020 - Present

The present study examined the relationship between Action Identification and Homosexual Identity Formation. Specifically, it examines how homosexual male individuals view their actions differently when they are “in the closet” (not open about their sexual orientation) compared to being out today (open about their sexual orientation). Homosexual male participants (N=142) took an online survey containing the internalized Homophobia scale, Self-concept clarity scale, and general demographics questions and took the Behavioral Identification Form with an additional 20 items twice (BIF+). The participants were instructed first to answer the BIF+ as if they were in the closet and later took the same …


Ai Family: Portraiture In Artists Books And Web Design, Tatyana V. Iudean Jan 2024

Ai Family: Portraiture In Artists Books And Web Design, Tatyana V. Iudean

Electronic Theses and Dissertations 2020 - Present

This thesis employs graphic design to envision the present and future scenario of humanity adapting to artificial intelligence and the current state of continuous data harvesting by organizations and platforms that lack transparency with the public. Explored topics include the impact of AI on families and the importance of gaining awareness regarding the potential negative and positive consequences of uncontrolled data collection about individuals. These themes converge in my exhibition to depict the current and potentially future reality of living in a family with the constant presence of AI and the associated dangers it entails. The concept of data harvesting, …


An Ethnography Of The Breastfeeding And Nonbreastfeeding Practices Of Black Jamaican Women In The United States, Nikkisha Smith Jan 2024

An Ethnography Of The Breastfeeding And Nonbreastfeeding Practices Of Black Jamaican Women In The United States, Nikkisha Smith

Electronic Theses and Dissertations 2020 - Present

Infant feeding is a universally recognized practice yet, it is profoundly influenced by culture. While it is well accepted that breast milk is the gold standard for infant feeding in the United States, the persistence of breastfeeding disparity among minorities, particularly among Black women in the U.S. is not well understood. According to the literature, Black mothers in the U.S. remain among the least likely to both initiate and exclusively breastfeed. Although infant feeding research related to African American women's practices has been widely explored, there is a paucity of knowledge related to the experiences and practices of foreign-born Black …


An Examination Of Emergency Management Programs In The Florida College System And State University System, Jaeson Andrew Weber Jan 2024

An Examination Of Emergency Management Programs In The Florida College System And State University System, Jaeson Andrew Weber

Electronic Theses and Dissertations 2020 - Present

This study addressed gaps in research on understanding the preparedness status of emergency management programs within Florida College System (FCS) and State University System (SUS) institutions. The quantitative assessment involved 21 institutions (51% response rate). A survey instrument was developed from prior studies and measured programmatic factors. These questions explored the current preparedness level regarding emergency management programs within Florida’s FCS and SUS institutions, the involvement of stakeholders in these programs, the perceived preparedness to respond to various hazards, the extent of institutional investment in emergency management efforts, and the organizational frameworks characterizing the emergency management departments or units within …


An Experimental Approach To Evaluate The Effectiveness And Performance Of Chlorine As A Disinfectant For Entamoeba Dispar In Groundwater, Rakib Ahmed Chowdhury. Jan 2024

An Experimental Approach To Evaluate The Effectiveness And Performance Of Chlorine As A Disinfectant For Entamoeba Dispar In Groundwater, Rakib Ahmed Chowdhury.

Electronic Theses and Dissertations 2020 - Present

Deep injection well technology is a reliable and cost-effective technique to manage hazardous wastewater. However, reduced injectivity is an issue for the performance of an injection well which can happen due to the occurrence of biogeochemical clogging. A class 1 deep injection well located at the Solid Waste Authority of Palm Beach County has long suffered similar problems that occurred due to the formation of chemical precipitation and biofilm. In the case of the biofilm, the dominant microorganism detected in previous work was determined to be Entamoeba dispar. The prime source of the protozoan was identified as the local groundwater, …


Assessing Coral Restoration Feasibility In The Face Of Stony Coral Tissue Loss Disease On Florida’S Coral Reef, Gabrielle S. Pantoni Jan 2024

Assessing Coral Restoration Feasibility In The Face Of Stony Coral Tissue Loss Disease On Florida’S Coral Reef, Gabrielle S. Pantoni

Electronic Theses and Dissertations 2020 - Present

Since the emergence of stony coral tissue loss disease (SCTLD) in 2014, 60% of live coral cover on Florida’s coral reefs have been lost. This study assessed the efficacy of outplanting microfragment colony arrays of three SCTLD-susceptible coral species (Montastraea cavernosa, Orbicella faveolata, and Pseudodiploria clivosa) as remediation technique in two SCTLD-degraded reef areas, St. Lucie Reef and Palm Beach, in southeast Florida. After approximately 2 years, outplanted colonies at both reefs experienced ≥ 75 % survivorship, net positive growth rates, and fragment fusion, with some variation between species and across reefs. Additionally, outplanting SCTLD-susceptible species did not increase local …


Automatic Detection Of Building Damage Caused By Hurricane On Florida Coastal Area From Aerial Images, Joseph Gyegyiri Jan 2024

Automatic Detection Of Building Damage Caused By Hurricane On Florida Coastal Area From Aerial Images, Joseph Gyegyiri

Electronic Theses and Dissertations 2020 - Present

Rapid response and efficient damage assessment are life-or-death matters in the wake of natural disasters such as hurricanes and earthquakes. These events wreak havoc on infrastructure and properties and, most critically, endanger human lives. The timely and effective allocation of resources during such crises is imperative, necessitating meticulous planning based on the extent of damage incurred. This research presents an approach to automating the damage assessment using pre/post-disaster aerial images and computer vision. Recent advancements in disaster response strategies have encouraged researchers to harness the power of satellite and aerial imagery to assess the aftermath. Usually, due to the different …


Classical And Post-Quantum Cryptography On Modern Arm-Based Processors, Mila Anastasova Jan 2024

Classical And Post-Quantum Cryptography On Modern Arm-Based Processors, Mila Anastasova

Electronic Theses and Dissertations 2020 - Present

Cryptographic algorithms are being developed and incorporated into network security protocols to provide secure communication over vulnerable mediums like the Internet. These protocols utilize secret and public key mechanisms to carry out data integrity, confidentiality, authentication, and non-repudiation. The urge to deploy cryptosystems on low-end devices, based on the constantly growing Internet of Things (IoT) world, requires optimal design and implementation of cryptographic algorithms and protocols to achieve small communicational and computational cost, while preserving the privacy of the transmitted data. Scenarios of low bandwidth, constrained memory, and limited processing power are common when targeting embedded devices; however, security requirements …


Cultural Integration Through Design Expression: Exploring The Intersection Of Languages In Design And Cultural Exchanges, Hamed Tabrizi Edalati Jan 2024

Cultural Integration Through Design Expression: Exploring The Intersection Of Languages In Design And Cultural Exchanges, Hamed Tabrizi Edalati

Electronic Theses and Dissertations 2020 - Present

This thesis, drawn from my experience as a visual designer who recently moved to the United States, focuses on design expression as a means to bridge cultures. My aim is to clarify the complex connection between design expression and cultural integration, emphasizing the essential part that design plays in promoting significant cross-cultural interactions. To reveal the complex relationships that exist in design and cultural identity, I go beyond aesthetics and investigate how design may be used to comprehend and communicate cultural identity. Language serves as a means of expressing cultural identity, values, and traditions. Using poetry, quotes, and idioms in …


Background Structure Functions, A Basis To Reduce Acoustic Power Requirements And Improve Images, Michael C. Kobold Jan 2024

Background Structure Functions, A Basis To Reduce Acoustic Power Requirements And Improve Images, Michael C. Kobold

Electronic Theses and Dissertations 2020 - Present

Background Structure Functions (BSFs) are wavefront distortion metrics, functions of Sound Speed Profiles (SSPs) that are functions of depth. Use of these BSFs is a synthesis form of Matched Field Processing (MFP) that detects signals that are otherwise lost to receivers. Underwater Acoustics (UWA) can use these models to forecast communication and imaging performance and to reduce power radiated into the sea. This reduction of Transmission Loss (TL) occurs because the commercial wavefront control has an input format that accepts BSFs. The BSF plots represent the purely statistical distortion for communications and remote sensing. Another source of TL reduction comes …


Development And Methodology For Auv-Based Geomagnetic Surveys In Support Of Geophysical Navigation, Joshua Jepsen Jan 2024

Development And Methodology For Auv-Based Geomagnetic Surveys In Support Of Geophysical Navigation, Joshua Jepsen

Electronic Theses and Dissertations 2020 - Present

This thesis investigates geomagnetic survey methodology in support of the development of a geophysical navigation system for an Autonomous Underwater Vehicle (AUV). Traditional AUV navigation methods are susceptible to cumulative errors and often rely on external infrastructure, limiting their effectiveness in complex underwater environments. This research leverages geomagnetic field anomalies as an additional navigational reference to these traditional systems, particularly in the absence of Global Positioning System (GPS) and acoustics navigation systems. Geomagnetic surveys were conducted over known shipwreck sites off the coast of Fort Lauderdale, Florida, to validate the system's ability to detect and map magnetic anomalies. Data from …


Developing Amine-Modified Silica Materials For Carbon Dioxide Capture From Different Gas Streams, Amirjavad Hosseini Ahmadian Jan 2024

Developing Amine-Modified Silica Materials For Carbon Dioxide Capture From Different Gas Streams, Amirjavad Hosseini Ahmadian

Electronic Theses and Dissertations 2020 - Present

The atmospheric concentration of CO2 increased from 320 to 425 parts per million by volume (ppmv; 0.0425 vol.%) between 1960 and 2024. Sample CO2 reduction strategies include shifting to renewable energy sources and employing CO2 capture. CO2 capture from the air (also known as direct air capture; DAC) has recently received increased attention. CO2 has the potential to act as an asphyxiant at high concentrations, particularly in enclosed environments (e.g., spacecraft, submarines), requiring air revitalization to remove CO2. Hence, the U.S. Occupational Safety and Health Administration determined a permissible exposure limit of 5,000 ppmv CO2 (0.5 vol.%) throughout an 8-hour …


Development Of Gis-Based Online Watershed Dashboard For Charlotte County, Florida, Saeid Naghadehi Zare Jan 2024

Development Of Gis-Based Online Watershed Dashboard For Charlotte County, Florida, Saeid Naghadehi Zare

Electronic Theses and Dissertations 2020 - Present

This thesis presents the development of an innovative Geographic Information System (GIS)-based Interactive Online Watershed Dashboard aimed at flood risk assessment and mitigation in Charlotte County, Florida. The research leverages advanced GIS techniques, including flood inundation simulations using CASCADE 2001, integrating LiDAR DEM data and GIS layers such as impervious surfaces, waterbodies, and soil characteristics to model flood behavior in 61 inundation probability scenarios. Key results include detailed flood inundation probability maps categorizing risk levels based on Z-scores, providing actionable insights for flood risk management and emergency planning. Spatial analysis reveals demographic vulnerabilities, with population density and ethnic compositions intersecting …