Digital Commons Network^™

Performance Optimization Of The Differential Protection Schemes, Monir Hossain

LSU New Orleans Theses and Dissertations

Current differential protection principle is superior in terms of sensitivity and speed of operation in comparison with other protection principle used in power systems. From the last five decades, various current differential protection schemes are widely used to protect busbars, transformers, and short-transmission lines. The deployment of high capacity microwave and optical fiber technologies redefined

the line protection systems by facilitating the use of current differential protection schemes for long transmission lines. The common application issue of these schemes is mis-operation due to current transformer (CT) saturation during close-in external faults. Moreover, transformer differential protection schemes face mis-trip due to …

The Effects Of Sediment Properties On Barrier Island Morphology And Processes: A Numerical Modeling Experiment, Brittany Kime

LSU New Orleans Theses and Dissertations

Barrier island restoration and nourishment is necessary for sustaining coastal systems worldwide. In the Mississippi River Delta Plain, the lack of sediment supply, relative sea level rise, and reworking of abandoned delta lobes promote rapid disintegration of barriers, which can contribute to mainland storm impacts. Barrier island restorations that utilize higher quality sediments (Outer Continental Shelf- OCS) are expected to exhibit higher resiliency, withstanding coastal erosion, event-induced erosion, and ongoing transgression when compared to barriers nourished using lower quality nearshore (NS) sands. Additionally, use of OCS sediments increases sediment supply by adding material to the system supporting increased barrier longevity …

Economic Rationality And Ethical Values In Design-Defect Analysis: The Trolley Problem And Autonomous Vehicles, W. Bradley Wendel

California Western Law Review

No abstract provided.

A Sociopolitical View Of Mental Health: An Exploration Of The Lived Experiences Of Policymakers Regarding Their Perspectives Surrounding Mental Health Policy Construction, Katie C. Fetzer

LSU New Orleans Theses and Dissertations

A substantial gap exists between those who are considered experts on mental health (e.g., academics, mental health professionals) and those in charge of constructing mental health policies (e.g., legislators, Senators). This gap is in areas of both knowledge and professional relations. Mental health professionals are not adequately trained to engage in policy advocacy and reform efforts and have little to no policy advocacy training (Smith, Reynolds, & Rovnak, 2009). Policymakers lack necessary knowledge related to mental health for effective mental health policy construction (Corrigan, Druss, & Perlick, 2014; Lee, Smith, & Henry, 2013). As a result of this gap, mental …

Essays On Capital Structure Of Nations, Giovanni Perez

LSU New Orleans Theses and Dissertations

No abstract provided.

Development And Thermodynamic Analysis Of An Integrated Mild/Partial Gasification Combined Cycle (Impgc) Under Green And Brown Field Conditions With And Without Carbon Capture, Henry A. Long Iii

LSU New Orleans Theses and Dissertations

Coal is a very prominent energy source in the world, but it is environmentally unattractive due to its high sulfur and ash content as well as its alleged contribution towards climate change, but it is affordable, abundant, and has high energy content. Thus, utilizing coal in a cleaner and more efficient way has become necessary. One promising clean coal technology involves fully gasifying coal into synthesis gas, cleaning it, and feeding it into a high-efficiency combined cycle, such as an Integrated Gasification Combined Cycle (IGCC). Inspired by the recent success of warn gas cleanup (WGCU), mild and partial gasification are …

The Alignment Of Esl Materials To Wida And State Standards, Jenna Marie Quanbeck

Dissertations, Theses, and Projects

This project analyzed the various 2^nd grade English language (EL) materials that were available in a rural elementary school to determine how those materials aligned to Minnesota (MN) state academic standards and the WIDA English Language Development standards. First, the various bodies of literature available on alignment and current recommendations for determining alignment between course content and state academic standards were reviewed. Then, the researcher developed and implemented a checklist-based process for determining alignment. This paper presents the literature review, the checklists, and the results of the analysis. The materials were found to be aligned to standards. The researcher …

Dynamic Response Of A Hingeless Helicopter Rotor Blade At Hovering And Forward Flights, Pratik Sarker

LSU New Orleans Theses and Dissertations

The helicopter possesses the unrivaled capacity for vertical takeoff and landing which has made the helicopter suitable for numerous tasks such as carrying passengers and equipment, providing air medical services, firefighting, and other military and civil tasks. The nature of the aerodynamic environment surrounding the helicopter gives rise to a significant amount of vibration to its whole body. Among different sources of vibrations, the main rotor blade is the major contributor. The dynamic characteristics of the hingeless rotor consisting of elastic blades are of particular interest because of the strongly coupled equations of motion. The elastic rotor blades are subjected …

Feasible Form Parameter Design Of Complex Ship Hull Form Geometry, Thomas L. Mcculloch

LSU New Orleans Theses and Dissertations

This thesis introduces a new methodology for robust form parameter design of complex hull form geometry via constraint programming, automatic differentiation, interval arithmetic, and truncated hierarchical B- splines. To date, there has been no clearly stated methodology for assuring consistency of general (equality and inequality) constraints across an entire geometric form parameter ship hull design space. In contrast, the method to be given here can be used to produce guaranteed narrowing of the design space, such that infeasible portions are eliminated. Furthermore, we can guarantee that any set of form parameters generated by our method will be self consistent. It …

Assessment Of Two Pedagogical Tools For Cybersecurity Education, Pranita Deshpande

LSU New Orleans Theses and Dissertations

Cybersecurity is an important strategic areas of computer science, and a difficult discipline to teach effectively. To enhance and provide effective teaching and meaningful learning, we develop and assess two pedagogical tools: Peer instruction, and Concept Maps. Peer instruction teaching methodology has shown promising results in core computer science courses by reducing failure rates and improving student retention in computer science major. Concept maps are well-known technique for improving student-learning experience in class. This thesis document presents the results of implementing and evaluating the peer instruction in a semester-long cybersecurity course, i.e., introduction to computer security. Development and evaluation of …

Automating The Detection Of Precipitation And Wind Characteristics In Navy Ocean Acoustic Data, Joseph T. Kuhner

LSU New Orleans Theses and Dissertations

A challenge in Underwater Acoustics is identifying the independent variables associated with an environment’s ambient noise. A strict definition of ambient noise would focus on non-transient signatures and exclude transient impacts from marine mammals, pelagic fish species, man-made sources, or weather events such as precipitation or wind speeds. Recognizing transient signatures in acoustic spectra is an essential element for providing environmental intelligence to the U.S. Navy, specifically the acoustic signatures from meteorological events. While weather event detection in acoustic spectra has been shown in previous studies, leveraging these concepts via U.S. Navy assets is largely an unknown. Environmental intelligence collection …

Laboratory Evaluation Of Recycled Crushed Glass Cullet For Use As An Aggregate In Beach Nourishment And Marsh Creation Projects In Southeastern Louisiana, John C. Wildman

LSU New Orleans Theses and Dissertations

To combat the rapid degradation of the Louisiana coast, the Louisiana Coastal Protection and Restoration Authority has planned strategic land building initiatives throughout the Louisiana Gulf coast, including beach nourishment and marsh creation projects. It is commonly agreed that the state lacks sufficient renewable sediment resources to maintain the planned CPRA land building program. However, Louisiana, the state that commonly ranks last in state recycling percentage, recycles an estimated 0.6% of the waste glass consumed in the state. Glass is predominantly silica sand. This thesis evaluates laboratory‑determined characteristics of recycled crushed glass cullet to assess its suitability as a renewable …

Numerical Simulation Of Dropped Cylindrical Objects Into Water In Two Dimensions (2d), Yi Zhen

LSU New Orleans Theses and Dissertations

The dropped objects are identified as one of the top ten causes of fatalities and serious injuries in the oil and gas industry. It is of importance to understand dynamics of dropped objects under water in order to accurately predict the motion of dropped objects and protect the underwater structures and facilities from being damaged. In this thesis, we study nondimensionalization of dynamic equations of dropped cylindrical objects. Nondimensionalization helps to reduce the number of free parameters, identify the relative size of effects of parameters, and gain a deeper insight of the essential nature of dynamics of dropped cylindrical objects …

The Current State Of Subjective Training Load Monitoring—A Practical Perspective And Call To Action, Joseph O. C. Coyne, G. Gregory Haff, Aaron J Coutts, Robert U. Newton, Sophia Nimphius

Research outputs 2014 to 2021

This commentary delivers a practical perspective on the current state of subjective training load (TL) monitoring, and in particular sessional ratings of perceived exertion, for performance enhancement and injury prevention. Subjective measures may be able to reflect mental fatigue, effort, stress, and motivation. These factors appear to be important moderators of the relationship TL has with performance and injury, and they also seem to differ between open and closed skill sports. As such, mental factors may affect the interaction between TL, performance, and injury in different sports. Further, modeling these interactions may be limited due to the assumption that an …

Geologic Map And Structural Development Of The Noerthernmost Sur-Nacimiento Fault Zone, Central California Coast, Scott M. Johnston, John S. Singleton, Alan D. Chapman, Gabriella Murray

Physics

The Sur-Nacimiento fault exposed along the central California coast (United States) juxtaposes the Salinian block arc against the Nacimiento block accretionary complex, cuts out the majority of the forearc basin and western arc, and requires a minimum of 150 km of orogen-normal crustal excision within the Mesozoic California convergent margin. Despite this significant strain, the kinematic evolution of the Sur-Nacimiento fault remains poorly understood, with diverse hypotheses suggesting sinistral, dextral, thrust, or normal displacement along the fault. This Late Cretaceous–Paleogene strain history is complicated by the location of the fault within a belt of subparallel faults that have accommodated significant …

Vocabulary Needs For The General Education Curriculum At A Four-Year University In The U.S., Esraa Kadhem

Dissertations, Theses, and Projects

The purpose of this study sought to find out the key terms and concepts needed for international students to succeed in the general education courses in a four-year university in the United States. This study analyzed existing enrollment data across three academic year (2014-2015, 2015-2016, and 2016-2017) to learn which general education course is most frequently taken by international students. One course in each LASC area was identified as the top one from the most frequent taken courses by international students. After identifying the top ten courses, answers on vocabulary needs were obtained by conducting semi-structured interviews with permanent faculty …

Creating An Adult Learner Entry Achievement Program, Gloria Riopelle

Dissertations, Theses, and Projects

ABSTRACT

This proposal is to implement an Adult Learner Entry Achievement Program (ALEAP) within higher education institutions. The purpose of the ALEAP program is to support and serve the needs of adult learners who want to return to or begin college to earn their degree or certificate and pursue their personal or career goals. In turn, their achievements will also increase the higher education attainment rates in the State of Minnesota. This program could exist as a stand-alone program or be housed within support systems, such as, Continuing Education or an Academic Support Center.

Current research indicates that there is …

Gaze Patterns Of Social And Nonsocial Stimuli: A Possible Early Marker For Autism Spectrum Disorder, Ashley Rose Doll

Dissertations, Theses, and Projects

The push for early identification and diagnosis of Autism Spectrum Disorder (ASD) has led to new developments in this area of research. Eye tracking is a promising behavioral screening measure that has been heavily investigated for over a decade. Differences in eye gaze between typically developing (TD) children and children with ASD when viewing social and nonsocial videos have been observed, but only within videos of children playing as social stimuli and with geometric shapes as nonsocial stimuli (Pierce et al., 2016; Shaffer et al., 2017). In addition to social stimuli and geometric shapes, the current study expanded on previous …

Ability Level Instruction Results On Broad Reading, Lacey Hendrickx

Dissertations, Theses, and Projects

The purpose of this study is to determine the effects of ability level grouping on seventh-grade broad reading skills. The study aims to determine whether ability level instruction will lead to positive growth in seventh-grade students’ broad reading skills. The study will look at seventh graders in a reading course with three levels: 1) students who have met or exceeded MCA standards, 2) students who have partially met MCA standards, 3) students who have not met MCA standards and examine possible growth of broad reading skills when provided instruction with students of similar abilities. Effects of ability level instruction will …

Co-Teaching: Is The Co-Teaching Model The Most Effective Strategy For Students?, Michelle Sokoloski

Dissertations, Theses, and Projects

Co-Teaching: Is the co-teaching model the most effective strategy for students?

Michelle Sokoloski

The purpose of this study is to identify whether co-teaching is the most effective strategy for teaching students. Participants of this study will consist of male and female, 5th grade math students of varying races and socio economic status’ in rural Minnesota. The participants consist of English Language Learners, those that are part of the free and reduced meal program, and other students in 5^thgrade. This study will follow approximately 20% of the grade and track their progress over the course of four months using …

Adaptations Made To Evidence-Based Public Health Programs In Low- To Middle- Income Countries: A Concept Mapping Analysis, Elizabeth Holguin

Nursing ETDs

One of the most challenging barriers to implementing successful and sustainable evidence-based programs in public health is the ability to remain faithful to original protocols grounded in scientific evidence while adapting programmatic components to reflect the reality of the communities they are meant to benefit. It is generally accepted that some degree of adaptation should occur in order to achieve positive, sustainable outcomes in public health programs. A concept mapping methodology was used to explore types of adaptation that occur during implementation of evidence-based global health programs in low- to middle-income countries (LMICs). Purposive and snowball sampling produced a sample …

Fine-Grained Topic Models Using Anchor Words, Jeffrey A. Lund

Theses and Dissertations

Topic modeling is an effective tool for analyzing the thematic content of large collections of text. However, traditional probabilistic topic modeling is limited to a small number of topics (typically no more than hundreds). We introduce fine-grained topic models, which have large numbers of nuanced and specific topics. We demonstrate that fine-grained topic models enable use cases not currently possible with current topic modeling techniques, including an automatic cross-referencing task in which short passages of text are linked to other topically related passages. We do so by leveraging anchor methods, a recent class of topic model based on non-negative matrix …

Management And Security Of Iot Systems Using Microservices, Tharun Theja Kammara

Master's Projects

Devices that assist the user with some task or help them to make an informed decision are called smart devices. A network of such devices connected to internet are collectively called as Internet of Things (IoT). The applications of IoT are expanding exponentially and are becoming a part of our day to day lives. The rise of IoT led to new security and management issues. In this project, we propose a solution for some major problems faced by the IoT devices, including the problem of complexity due to heterogeneous platforms and the lack of IoT device monitoring for security and …

Proposing An Optimized Algorithm For Consolidating Electric-Powered Shared Scooters Into Hubs For Efficiently Managing Their Charging And Maintenance Operations, Ojen Goshtasb

Master's Projects

The use of vehicles other than ones containing combustion engines have been adopted significantly over the past few years and the direction it’s taking seems to be the future of urban transportation. The hottest vehicle of choice currently is the electric scooter. They are small and portable, fast, and less costly compared to getting in a cab from Lyft or Uber to get around town. The goal of this paper is to make a proposal to drive the creation of a safe, efficient system for these scooters’ management. This must be beneficial to all parties involved; the rider, non-riders, and …

Modeling Reveals The Dependence Of Hippocampal Neurogenesis Radiosensitivity On Age And Strain Of Rats, Eliedonna Cacao, Sidath Kapukotuwa, Francis A. Cucinotta

Health Physics and Diagnostic Sciences Faculty Research

Cognitive dysfunction following radiation treatment for brain cancers in both children and adults have been correlated to impairment of neurogenesis in the hippocampal dentate gyrus. Various species and strains of rodent models have been used to study radiation-induced changes in neurogenesis and these investigations have utilized only a limited number of doses, dose-fractions, age and time after exposures conditions. In this paper, we have extended our previous mathematical model of radiation-induced hippocampal neurogenesis impairment of C57BL/6 mice to delineate the time, age, and dose dependent alterations in neurogenesis of a diverse strain of rats. To the best of our knowledge, …

Power In Pairs: Assessing The Statistical Value Of Paired Samples In Tests For Differential Expression, John R. Stevens, Jennifer S. Herrick, Roger K. Wolff, Martha L. Slattery

Mathematics and Statistics Faculty Publications

Background: When genomics researchers design a high-throughput study to test for differential expression, some biological systems and research questions provide opportunities to use paired samples from subjects, and researchers can plan for a certain proportion of subjects to have paired samples. We consider the effect of this paired samples proportion on the statistical power of the study, using characteristics of both count (RNA-Seq) and continuous (microarray) expression data from a colorectal cancer study.

Results: We demonstrate that a higher proportion of subjects with paired samples yields higher statistical power, for various total numbers of samples, and for various strengths of …

Micromagnetic Study On The Magnetization Reversal Of Barium Hexaferrite (Bafe12o19) Thin Film, Dede Djuhana, Dita Oktri, Candra Kurniawan

Makara Journal of Science

This study investigates a magnetization reversal mechanism based on the hysteresis curve of Barium Hexaferrite (BFO) thin film by micromagnetic simulation through parallel and perpendicular magnetization directions along the axes. The hexagonal shape of the BFO film was modeled with thicknesses of 5, 10, and 15 nm and a diameter size ranging from 50 to 100 nm. It was found that the coercivity field HC and the saturation field HS of the BFO film decreased as thediameter size increased and thickness decreased. It was observed that the nucleation field HN increased as the diametersize increased. An analysis of energies showed …

Science And Long-Term Monitoring Of Continental-Type Glaciers In Arid Region In China, Li Zhongqin, Wang Feiteng, Li Huilin, Xu Chunhai, Wang Puyu, Zhou Ping, Yue Xiaoying

Bulletin of Chinese Academy of Sciences (Chinese Version)

China has 48 571 glaciers with a total area of 5.18×10 ⁴ km ², which accounts for 11%-14.5% of the total area of mountain glaciers in the world. These glaciers constitute a vital source of water for more than 100 million people and for wildlife ecosystems in this vast arid and semi-arid land in northwestern China. Urumqi Glacier No. 1, the best monitored glacier in China, is located at the headwaters of the Urumqi River in eastern Tianshan and is within the core area of central Asia. To implement the long term monitoring of Urumqi Glacier No. 1, the …

A Known Naphthalene, Isoeleutherol, From The Herb Of Lygodium Microphyllum, Hadi Kuncoro, Kindi Farabi, Laode Rijai, Euis Julaeha, Yoshihito Shiono, Unang Supratman

Makara Journal of Science

A known naphthalene, isoeleutherol (1), was isolated from the herb ofLygodium microphyllum. The chemical structure of 1 was determined on the basis of spectroscopic data mainly UV, IR, HRTOFMS, 1D-and 2D-NMR spectroscopy, aswell as by comparing with compounds previously reported. Isoeleutherol was isolated from this plant for the first timeand showed moderate antioxidant activity against DPPH (2,2-diphenyl-1-picrylhydrazyl) with IC50 value of 53.96 ± 2.87 μg/mL.

Identification Of Drought-Tolerant Local Cowpea Varieties Of Southwest Maluku (Indonesia), Ritha Lusian Karuwal, Suharsono Suharsono, Aris Tjahjoleksono, Novriyandi Hanif

Makara Journal of Science

Cowpeas grown in Southwest Maluku have local potential due to their diversity and ability to adapt to drought stress conditions that otherwise cause low productivity. The purpose of this study was to identify of local cowpea varieties of Southwest Maluku that show tolerance to drought. The experimental samples were seven local varieties and threereference cultivars. The drought stress treatment was altered watering periods, i.e., every two (P0) and ten days (P1) from growth to harvest. The results of this research showed that a ten-day watering period significantly decreased plant height, number of leaves, number of root nodules, root and shoot …