Digital Commons Network^™

Acoustic Characterization And Modeling Of Heated Supersonic Tactical Jet Aircraft And Launched Rockets, Logan Troy Mathews

Theses and Dissertations

Understanding and accurately modeling the acoustic sources and propagation of high-intensity tactical jet aircraft and rocket noise is essential for vehicle design, environmental impact assessment, and mitigation strategies. Despite progress in the understanding of these sources, significant challenges persist in both predictive modeling and noise mitigation. This dissertation advances both the characterization of full-scale supersonic tactical jet aircraft noise sources and the development of modern empirical prediction models for rocket launch noise. Across multiple measurement campaigns and modeling efforts, the work integrates advanced array signal processing, high-fidelity field measurements, and improved empirical methods to expand the physical understanding of source …

Why Are Food System Workers Excluded From Local Food Policy Councils?, Frank Sarfo, Laura-Anne Minkoff-Zern, Jonnell A. Robinson

The Lender Center for Social Justice

This brief summarizes findings from our study that used national survey data of FPCs as well as focus groups and interviews with over 25 FPC representatives and leaders to examine the challenges and barriers that have limited FPCs’ engagement with labor issues. We also identify key obstacles to labor advocacy and offer practical recommendations for integrating labor equity into local food policy efforts.

The George-Anne Daily, Georgia Southern University

George-Anne Media Group: Newsletters & Magazines

No abstract provided.

Carbon-Infiltrated Carbon Nanotube Coated Ti6al4v Substrate Tensile And Torsion Raw Data, Jacquelyn Monroe, Brian Jensen

ScholarsArchive Data

This data set contains the raw tensile and torsional Instron measurements reported in Carbon-Infiltrated Carbon Nanotube Coating Effect on Bacterial Resistance and Ti6Al4V Substrate Material Properties. The data in these files was used to generate the stress–strain curves presented in the study.

State Of Nevada Cannabis Testing, University Of Mississippi – National Center For Cannabis Research And Education, Yasha Kahn, Mcr Labs

Nevada

No abstract provided.

State Of Hawaii Cannabis Testing, University Of Mississippi – National Center For Cannabis Research And Education, Yasha Kahn, Mcr Labs

Hawaii

No abstract provided.

State Of Connecticut Cannabis Testing, University Of Mississippi – National Center For Cannabis Research And Education, Yasha Kahn, Mcr Labs

Connecticut

No abstract provided.

State Of New Jersey Cannabis Testing, University Of Mississippi – National Center For Cannabis Research And Education, Yasha Kahn, Mcr Labs

New Jersey

No abstract provided.

Dynamic Testing Architecture Of Intelligent Unmanned Systems Based On Parallel Battlefields, Dayong Liu, Zhiming Dong, Qisheng Guo, Wenjun Zhang, Jiancheng Gao

Journal of System Simulation

Abstract: To improve the inadequacy of traditional test and identification systems, this paper proposed an overall architecture for dynamic testing across the entire lifecycle based on the concept of parallel battlefield (integration of physical, virtual, and cognitive battlefields), meeting the new requirements for the testing of intelligent unmanned systems. This architecture included high-fidelity mapping between virtual and physical battlefields, red-blue adversarial deductions and model optimization, simulation to reality (Sim2Real), human-machine collaboration, and cloud-end integrated control, as well as multidimensional assessment and confidence analysis. Centered on the principles of "mutual driving between virtual and physical battlefields, dynamic closed-loop, human-machine collaboration, and …

Research On Digital Simulation Method For Cognitive Load Evaluation Of Pilots, Zeng Fan, Mingjun He, Xiangyu Xing

Journal of System Simulation

Abstract: The operator's cognitive load constitutes a critical determinant of task performance. Pilots, as the primary operators of aircraft, must face an overwhelming volume of information during complex missions, which significantly heightens the risk of cognitive overload and operational errors. Evaluating cognitive load during tasks helps reduce human errors and improve system safety by optimizing design schemes. A simulation model was established to dynamically predict the pilots' cognitive load during tasks for multi-task scenarios. Based on the multiple resource theory, a method for quantifying cognitive load in multi-task conditions was established. By considering cognitive capacity, task time constraints, task priority, …

Study On Semi-Physical Simulation Method Of Air Turbo Rocket Engine In Startup Process, Xuesen Yang, Wei Zhao, Binglong Zhang, Sanqun Ren, Xiaorong Xiang, Qingjun Zhao

Journal of System Simulation

Abstract: To satisfy the requirements for validating the control law of air turbo rocket (ATR) engines, a semi-physical simulation approach was proposed based on serial communication. This platform integrated a rapid prototype system, a supply system, a measurement and control system, a signal simulator, a fault injection system, and a real-time computer. A digital model of the engine was developed based on cross-compilation technology, enabling the coupling and semi-physical simulation of the engine control system and the supply system. A semi-physical simulation of the ATR engine in the startup process was carried out, and the fault handling strategy of the …

Research On 3d Visualization Of Safety Monitoring And Early Warning For Steel Continuous Casting Scenarios, Wei Zhang, Wei Sheng, Yidan Cao, Tingsheng Zhao

Journal of System Simulation

Abstract: In order to improve the visualization and integration of production safety monitoring and fault warning, a three-dimensional (3D) visualization model architecture for whole-process industrial production safety monitoring and early warning for steel continuous casting scenarios was designed. By using 3ds Max and Unity3D, a multi-dimensional and multi-scale model was built, and functional modules such as visualization display and multi-level early warning for safety monitoring data were developed. By combining WebGL technology and Node. js runtime environment, the visualization of whole-process industrial production safety monitoring based on Web terminal was realized. The alarm threshold determination method for whole-process industrial production …

Digital Testing And Evaluation: Current Status, Challenges, And Prospects, Bo Sun, Kai Zheng

Journal of System Simulation

Abstract: Digital testing and evaluation (DTE) represents a novel paradigm in the evolution of testing and evaluation methodologies within the digital era. It is achieved through the integration of multiple digital theories and technologies to conduct testing and evaluations in the digital domain. This paper analyzed the characteristics of test objects across different historical periods, reviewed the core features of testing and evaluation techniques in each stage, and unveiled the paradigm shifts within the testing and evaluation technology system. Building upon this foundation, it explored the new demands placed on testing by test objects in the information age, clarifying the …

Adaptive Sampling And Ghost Multi-Scale Fusion For Lightweight Weld Defect Detection, Bin Lu, Xuan Yang, Zhenyu Yang, Xiaotian Gao

Journal of System Simulation

Abstract: To improve the accuracy and speed of welding defect detection and achieve lightweight models, a lightweight weld defect detection network based on YOLOv8, named light adaptive-weight sampling-YOLO (LAW-YOLO), was proposed. A lightweight adaptive weight sampling LAWS module was designed. It constructed an adaptive weight attention feature map by learning the interacting features within the receptive field. An optimized efficient weighted bidirectional feature pyramid network was adopted as the feature extraction backbone in LAW-YOLO. Furthermore, a ghost multi-scale sampling module was designed, and a hybrid attention mechanism was introduced to enhance the detection capability for small-scale defect targets. Experimental results …

Research On Simulation Technology Of Fire Extinguishing In Engine Compartment Of Special Vehicle, Jianmin Niu, Yue Zhong, Feng Xu, Jindun Ma

Journal of System Simulation

Abstract: In view of the difficulty of measuring the detection response time and evaluating fire extinguishing abilities of the fire extinguishing system after a fire accident in the engine compartment, the turbulence model was adopted, and numerical modeling of the fire propagation and the diffusion process of Halon fire extinguishing agent during the firefighting process was carried out. The development of fire and the fire extinguishing process at the corner and the middle position of the vehicle compartment was simulated, and the temperature changes during the occurrence and extinguishing of fires in different environments were collected, so as to obtain …

Research On Joint Simulation Of Special Vehicle Engine Operation Characteristics Based On Virtual Driving Scenarios, Xueyuan Xie, Chen Lin, Han Wu, Qinglan Zhao, Junfei Gao, Qiangguo Hao, Xinqian Zheng

Journal of System Simulation

Abstract: The preliminary design of the overall operation performance of diesel engines cannot be guided by actual vehicle driving tests, which hinders the improvement of the power development level and efficiency of special vehicles. By using the virtual visual simulation engine Unity3D, two virtual driving scenario models were established: a flat road scenario and an undulating road scenario. Based on the speed characteristic parameters of the engine, a diesel engine's operation performance output model was constructed. Combined with the transmission system model and the longitudinal dynamics model of the vehicle's center of mass, a straight vehicle driving dynamics model was …

Detection Of Small Apple Targets Based On Improved Yolov5 In Natural Environments, Zilong Liu, Lei Zhang

Journal of System Simulation

Abstract: The distribution of apples usually features occlusion and small and dense targets. To address these issues, a target detection algorithm was proposed based on an improved YOLOv5 model. Specifically, this paper added the coordinate attention (CA) mechanism, receptive field block (RFB), and adaptively spatial feature fusion (ASFF) modules to the YOLOv5, enhancing the ability to detect small targets. Additionally, the proposed algorithm replaced the CIoU in YOLOv5 with SIoU to improve the target detection box's prediction accuracy. Finally, some normal convolutions were replaced with depthwise separable convolutions (DSC), effectively reducing the calculation burden. Experiment results show that the comprehensive …

Faculty Panel: Ideas For Introducing Your Syllabus, Liz Norell

Events

Spending the first day of class marching through the syllabus doesn’t exactly set the stage for an engaged classroom environment, but the information in the syllabus is important. Given that, what do we do instead? In this panel discussion, we’ll hear from several instructors about how they introduce the syllabus at the start of a new semester. Attendees will leave with multiple examples of how to engage students in a more interactive review of the syllabus that builds community and sets the tone for an engaged classroom environment.

An Ot-Based Program For The Hispanic Community, Ruby Vargas, Cassandra Nelson

Summer 2025 OTD Capstone Symposium

Hispanic older adults experience significant health disparities, including higher rates of functional limitations and limited access to rehabilitation services due to language and cultural barriers. Guided by the Person-Environment-Occupation-Performance (PEOP) model, this doctoral capstone implemented the Step by Step program across multiple community sites to improve health literacy, independence, and awareness of occupational therapy (OT). The program delivered bilingual, culturally tailored education, ADL-based strategies, and fall prevention activities. Needs assessments and pre/post surveys indicated increased confidence in daily activities, improved understanding of OT’s role, and greater engagement in health-promoting behaviors. Findings support community-based, culturally responsive OT programs as effective in …

Use Of Motivational Interviewing To Increase Compliance In Therapy To Improve Work And Education Preparation For At-Risk And Underserved Youth, Javon Smith, Jan Greer, Sean Tory

Summer 2025 OTD Capstone Symposium

At-risk and underserved youth often face barriers to educational attainment, employment, and psychosocial well-being, which can limit their long-term occupational engagement. This doctoral capstone project implemented an eight-week, occupational therapy–informed program at R.I.S.E. Homes in Las Vegas, Nevada, integrating the Model of Human Occupation (MOHO) and Motivational Interviewing (MI) frameworks. The program aimed to enhance life skills, emotional regulation, conflict resolution, and career readiness among youth in transitional living. Using a trauma-informed, client-centered approach, sessions combined didactic instruction, interactive activities, and role-play to foster skill acquisition and self-efficacy. Outcomes were measured through pre- and post-program self-assessments and qualitative feedback from …

Empowering Independence: Strategies For Safe Aging In The Home And Community For The Older Adult Population, Madelyn Rashford, Becky King, Keegan Mckay

Summer 2025 OTD Capstone Symposium

This capstone project created an occupational therapy–based guidebook to promote safe aging in place for community-dwelling older adults. The guidebook includes fall prevention exercises, home safety strategies, and community resources to support independence in daily activities. Implementation showed increased safety awareness and confidence, reinforcing occupational therapy’s role in fostering independence and quality of life.

A Closer Look At The Relationship Between Cultural Intelligence And Organizational Citizenship Behaviors, Lesli B. Quiroz

Master's Theses

As organizations—particularly in the United States—become more multicultural due to globalization, they increasingly rely on individuals' ability to succeed in complex, cross?cultural environments. Cultural intelligence (CQ), or the ability to successfully adapt to unfamiliar cultural settings, has been previously related to expatriate cross-cultural adjustment, group effectiveness, and more recently, to organizational citizenship behaviors (OCB), which are voluntary extra-role workplace behaviors that lead to positive employee and organizational outcomes. This study mainly sought to theoretically expand the limited research on the relationship between CQ and OCB with some research questions. In a sample of 93 participants based in California, results found …

Evaluating Updated Fentanyl Immunoassays For Loperamide Interference, Michael E. Walsh, Grace R. Williams, Paul J. Jannetto, K. Aaron Geno

Dartmouth Scholarship

Background

Loperamide is a µ-opioid receptor agonist that reduces intestinal peristalsis and is used to treat diarrhea. We previously described significant cross-reactivity of loperamide with 2 fentanyl immunoassays. Since then, new fentanyl immunoassays, including a CLIA-waived point-of-care device, have been approved for clinical use. Methods

We evaluated new fentanyl immunoassays for cross-reactivity to loperamide and its major metabolites, N-desmethyl loperamide (dLop) and N-didesmethyl loperamide (ddLop). Previously characterized assays were tested for cross-reactivity to ddLop, which recently became commercially available. Loperamide, dLop, and ddLop were spiked in drug-free urine for analysis by 5 enzyme immunoassays run on automated chemistry analyzers and …

The Label Of Low Effort: Exploring Teachers’ Effort-Related Language, Meritocratic Beliefs, And Attribution-Based Responsibility Assignments, Kelly A. Larson

Doctorate in Education

Educators play an integral role in the academic success and future educational trajectory of their students. Yet, in an unjust, hyper-individualistic education system grounded in a meritocratic myth, even the most well-intentioned teachers have a tendency to explain students’ underperformance through a self-protective, deficit-based attribution process that puts the onus of academic achievement almost entirely on students and their families. This recursive cycle is especially damaging for students who do not exhibit effort in normalized, Eurocentric ways. This study examines how teachers’ attributions and responsibility assignments for students’ perceived low-effort behavior are shaped by inequitable meritocratic beliefs and reinforced through …

Short-Term Load Forecasting Based On Dual-Attention Temporal Convolutional Long Short-Term Memory Network, Lifen Li, Jinyue Zhang, Wangbin Cao, Huawei Mei

Journal of System Simulation

Abstract: In order to improve the accuracy of load forecasting and fully extract the hidden relationships between load and other characteristic factors, a load forecasting method based on dual-attention temporal convolutional LSTM network (DA-TCLSNet) was proposed. Correlation analysis was conducted on the dataset using the maximum information coefficient method to perform feature screening to reduce the computational cost of the model. The model input was constructed using a sliding window. The DATCLSNet forecasting model was constructed. The temporal convolutional layer extracted dependencies at different time scales and captured the nonlinear characteristics among variables such as load and weather. The multi-head …

Seventh Regiment Armory Conservancy, Inc. V. Knickerbocker Greys

All Decisions

In this commercial holdover dispute between two non-profits regarding space in a historic armory, the court partially granted and denied both parties' summary judgment motions. The court found that a new law (L. 2024 Ch. 659), which was passed during the pendency of the proceeding, was clearly intended to prevent the eviction of the respondent, a "legacy cadet corps program" that had occupied the space for over a century. Applying principles of statutory construction, the court prioritized the legislature's intent over a literal interpretation of the law. It rejected the petitioner's arguments that the law was unconstitutional or that the …

Late Holocene Paleodietary Patterns Among The Ancestral Ohlone: Ecogeographic Partitioning Of Resources Along The San Francisco Bay Eastern Shore, Melanie M. Beasley, Eric J. Bartelink, Alan Leventhal, Monica V. Arellano, Richard Massiatt, Charlene Nijmeh

Faculty Research, Scholarly, and Creative Activity

Objectives: In the San Francisco Bay Area, Late Holocene resource intensification models predict an increase in diet breadth and a reduction in foraging efficiency associated with an increase in population, sedentism, and territoriality among fisher-hunter-gatherer populations. Here we compare bone stable carbon (δ¹³C) and nitrogen (δ¹⁵N) isotope values of sites along the eastern bay shore to interpret how ecogeographical partitioning of resources by latitude and distance from the bay reflects differential access and control of resources. Materials and Methods: With the support of, and in collaboration with, the Muwekma Ohlone Tribe of the San Francisco Bay …

Magnetic Ordering And Dynamics In Assemblies Of Magnetite Nanoparticles Throughout The Superparamagnetic Transition, Johnathon Michael Rackham

Theses and Dissertations

Magnetic nanoparticles are used in nanotechnologies and biomedical applications, such as drug targeting, hyperthermia treatment, MRI contrasting agents, and bio-separation of compound solutions. Magnetite (Fe3O4) nanoparticles stand to be effective in these roles due to the non-toxic nature of magnetite and its strong magnetization. To this end, a greater understanding of the magnetic behavior of the individual magnetite nanoparticles is needed when a collection of them is used. This research seeks to discover the local magnetic ordering and dynamics of fluctuations of ensembles of magnetite nanoparticles at various stages of the magnetization process, throughout the superparamagnetic blocking transitions, and for …

Post-Traumatic Myelin Oligodendrocyte Glycoprotein Antibody Optic Neuritis: A Case Report, Saif A. Hamdan, Jaime Nassur, Sarah E. Thornton

Wills Eye Hospital Papers

PURPOSE: Myelin oligodendrocyte glycoprotein (MOG) antibody-associated disease (MOGAD) has recently been distinguished as its own disease entity separate from other demyelinating diseases. This case report highlights the possible association of orbital trauma with the development of MOG antibody (MOG-IgG) optic neuritis.

OBSERVATIONS: A 31-year-old male with no significant ocular history presented with blurry vision in the right eye four weeks after a motorcycle crash. Right eye examination was notable for a significant decrease in visual acuity with a relative afferent pupillary defect and circumferential disc elevation on fundoscopy. An extensive workup, including imaging and serology, revealed optic neuritis with a …

Precarious Privilege: Exploring The Intersection Of White Teacher Habitus And Social Justice In International Schools, Kevin L. Workman

Dissertations

This qualitative study explored the underresearched phenomenon of White teacher allyship within an emergent diversity, equity, inclusion, and justice (DEIJ) movement in international schools. Gaining momentum in 2020 as a digital, postcolonial counterstory, the movement exposed structural inequities and racism across the international school ecosystem. Applying an antiracist reading of Bourdieu’s (1977) theory of practice, the study analyzes how White teachers (n = 8) from diverse international contexts understand, experience, and assess their participation in DEIJ activities. Thematic analysis of interview data corroborated the digital voices, explicitly identifying White supremacy as a key force shaping the field’s doxa. The study …