Digital Commons Network^™

Modelling Method Of Unmanned Vehicle Dynamics Based On Neural Network, Jun Wang, Min Liu, Xiaochuan Zhang, Yishan Ding, Juhui Feng, Ye Zhuang

Journal of System Simulation

Abstract: To address the challenges of high data acquisition costs of test data on dynamic characteristics between tires and soft terrain and low speed of numerical calculation for unmanned vehicles in complex terrestrial environments, a modeling method of unmanned vehicle dynamics based on a neural network was proposed. Tire-terrain contact dynamics models were built by using discrete element method (DEM) simulations for tire-terrain contact and experimental data, thereby creating a dataset of tire contact forces for various tire materials in terrestrial environments. The neural network was applied to regressively learn the dataset, and a nonlinear neural network tire model was …

Large-Scale Multi-Objective Evolutionary Algorithm Based On Multi-Region Dynamic Grouping, Binhao Liang, Jingxuan Wei, Fengqin Liang

Journal of System Simulation

Abstract: The decision variable dimension of large-scale multi-objective optimization problems can reach hundreds or even thousands. For existing large-scale multi-objective evolutionary algorithms based on decision variable analysis, which usually consume a large amount of computational resources for grouping and fail to consider the interactions between convergence-related variables and diversity-related variables, a large-scale multi-objective evolutionary algorithm based on multi-region adaptive dynamic grouping was proposed. The algorithm employed a Gaussian mixture model to partition the decision space into multiple regions; within each region, feature vectors were constructed for each decision variable, and spectral clustering was utilized to perform grouping. To validate …

Intelligent Competition Platform And Mode Driven By Cloud-Native Simulation, Long Qin, Hesong Huang, Lujia Yin, Chuan Ai, Qi Zhang, Xinmeng Li

Journal of System Simulation

Abstract: To solve the problems faced by the adversarial competition mode of agents, including difficult development and deployment, low resource utilization, poor reusability, and difficulty in accessing reinforcement learning algorithms, a new agent simulation training platform was designed. The software components of the competition platform were decoupled based on cloud-native technology; a high-performance simulation engine for the competition environment was proposed; a new method of an embedded reinforcement learning model for an intelligent control terminal was designed, with multiple online and offline policy-based reinforcement learning algorithms set. The experiment demonstrates that the development and deployment of the system is efficient, …

Intersection Positioning Algorithm With Spatial Translation Based On Sar Scene Matching, Cheng'en Pu, Yumin Lai, Rui Shi, Yan Liao, Kezi Meng, Lifeng Qu

Journal of System Simulation

Abstract: To address the problem that the positioning precision of the inertial navigation system cannot meet the requirements of autonomous positioning when the aircraft flies, an autonomous positioning method with spatial translation based on circular scanning scene matching of SAR was proposed. The spatial translation positioning model of the aircraft was established according to the position of the ground matching points obtained by single point and single circular scanning scene matching of SAR, the oblique distance between the matching points and the aircraft, and the inertial measurement information of the aircraft. The characteristic information of the matching point sequence was …

State Monitoring Of Nuclear Power Connection Sleeve Quality Inspection Equipment Driven By Digital Twin, Yandong Nan, Jinda Zhu, Xinbin Lu, Zhiying Qin, Dandan Qi, Zhiheng Ding

Journal of System Simulation

Abstract: To address the problems of delayed state perception, single monitoring dimension, and insufficient visualization in the quality inspection equipment for nuclear power connection sleeves, a state monitoring method driven by digital twin was proposed. A digital twin-based collaborative state monitoring framework for the inspection equipment was constructed. Based on the OPC UA technology, a multi-source information interconnection model was established. A finite state machine model was employed to discretize and logically drive the inspection process, and a hierarchical verification strategy was proposed to establish a multi-dimensional motion state monitoring mechanism. A surrogate model coupling the radial basis interpolation function …

Modeling And Simulation Of Target Characteristic Architecture Of Target Missile Based On Dodaf, Tuo Zhao, Yuqiao Liu, Yuan Ma, Yun Cheng, Shen Li

Journal of System Simulation

Abstract: In view of the problems of incomplete elements and missing architecture in the research of target characteristics of target missiles, this paper introduced the panoramic view, operational view, and capability view models in the DoDAF from the perspective of system engineering. According to the view development sequence of "panoramic description, operational decomposition, and capability matching", a target characteristic architecture of the target missile was constructed, which included target elements such as maneuvering characteristics and infrared radiation characteristics. The mapping relationship among "operational layer, capability layer, and target characteristic layer" of the target missile was obtained, and the architecture was …

Dynamic Model-Driven Verification Framework For Modular Aerial Bomb Systems, Wenlong Li, Shuhan Sang, Yusheng Liu, Haiyan He, Zan Liang, Wenqiang Yuan, Biao Niu, Weifeng Luo

Journal of System Simulation

Abstract: To address the problems of high verification costs, difficulty in covering dynamic behaviors, and lack of quantitative closed loops in the design stage of modular complex equipment, a dynamic model-driven modular system verification framework was proposed. Based on model-based systems engineering (MBSE) modeling, a structural coupling quantification model was constructed using the number of interfaces, signal interaction frequency, and dependency intensity. Dynamic tests were conducted in high-fidelity virtual simulation to collect data; performance rating for indicators such as accuracy, response, and stability, as well as system's comprehensive rating, were obtained, and the rating feedback was used for iterative optimization. …

University Of Richmond Chamber Ensembles, Department Of Music, University Of Richmond

Music Department Concert Programs

No abstract provided.

The Effects Of Visual Supports On The Acquisition Of Guitar Chords, Cole S. Jahna

Thesis Projects

There is a current literature gap in applied behavior analysis (ABA) and music-based leisure activities. This study utilized a multiple-probe design to evaluate the effects of visual supports on the guitar fretboard combined with behavioral skills training (BST) to teach correct strumming and finger placement of three guitar chords (i.e., E, C, and G) to a neurodivergent adult. By using a task analysis, the strum and each individual finger placement were scored as correct or incorrect during each chord trial. Three chords that were under 50% accuracy in baseline were selected for the intervention. The intervention was introduced sequentially to …

Jtc 26: Transfer Student Discovers Full Potential At Ole Miss, Emerson Penny

University of Mississippi News

This story is part of the 2026 Journey to Commencement series, which celebrates the pinnacle of the academic year by highlighting University of Mississippi students and their outstanding academic and personal journeys from college student to college graduate.

Presidential Search Committee Minutes, Clemson University Board Of Trustees, 2026 April 20, Clemson University Board Of Trustees, Clemson University Board Of Trustees

Minutes

No abstract provided.

Vasculature Of The Anterior Abdominal Wall And Surface Anatomy Of The Liver And Stomach: Considerations For Minimal Access Surgeries In Neonates, Daniël J. Van Tonder, Natalie Keough, Martin Louis Van Niekerk, Albert Van Schoor

COM Scholarship

Background: Minimal access surgeries are growing more common in neonatal care, but the risk of accidental injury to abdominal wall blood vessels remains a concern. This risk is increased by limited precise anatomical data specific to neonates. Therefore, this study aimed to quantitatively map the superficial and deep blood vessels of the neonatal anterior abdominal wall concerning important surgical landmarks to develop evidence-based recommendations for safer laparoscopic port placement. Methods: Thirty formalin-fixed low-birth-weight neonatal body donations (≤4 weeks old) were dissected. An anatomical grid based on palpable landmarks—including the umbilicus, xiphoid process, and anterior superior iliac spines—was utilised to measure …

Equine-Assisted Interventions For Pediatric Clients With Cerebral Palsy: A Handbook For Occupational Therapists, Draydin Ferguson, Lesley Khan-Farooqi, Phd, Otd, Otr

Spring 2026 OTD Capstone Symposium

This poster outlines the development of an evidence-informed instructional handbook intended to guide Occupational Therapists in implementing equine-assisted interventions with pediatric clients diagnosed with Cerebral Palsy.

Groove ‘N’ Grow: Promoting Social Participation Through Dance And Movement, Juliana N. Ward, Karen Park

Spring 2026 OTD Capstone Symposium

Groove ‘n’ Grow is a structured pediatric occupational therapy group program designed to improve social participation, engagement, and sensory regulation in children with developmental and sensory processing differences through dance and movement-based activities. The program was developed as part of an occupational therapy doctoral capstone project and implemented within a pediatric outpatient therapy clinic. The purpose of the program is to provide children with developmental and sensory processing differences opportunities to practice peer engagement, cooperative participation, emotional regulation, and emotional awareness in a supportive small-group environment.

Barriers Of Animal Assisted Therapy, Taylor Blanchard, Amy Lyons-Brown

Spring 2026 OTD Capstone Symposium

This study employs a mixed-methods design, integrating online surveys, semi-structured interviews, and clinical observations to examine the use of animal-assisted therapy (AAT) within occupational therapy practice. The primary objectives are to characterize the demographics of occupational therapists and therapy animals engaged in AAT, identify barriers to its implementation, and evaluate the resources currently available to support practitioner knowledge and competency. By addressing these areas, the study seeks to clarify existing gaps in education and practice, with the broader goal of strengthening the evidence base and enhancing the accessibility, consistency, and impact of AAT in occupational therapy.

The “How” Of Christian Scholar’S Review: Addressing Two Academic “Integration” Problems, Matthew D. Lundberg

University Faculty Publications and Creative Works

Over the past two weeks, my colleagues Margaret Diddams and Perry Glanzer have articulated the mission of Christian Scholar’s Review by considering the “why” and “what” of the journal. In this blog post, I will explore the “how” question—how CSR approaches its mission. (As you might expect, the “how” overlaps considerably with the “what” and “why.”) How does CSR do its work? By taking on two distinct but related “integration” challenges that face Christian scholars and Christian academic institutions.

Edgecube -- An Iot Edge-Sensor Node For Tiny Machine Learning Applications, Nathan Gerard Timmins

Master's Theses (2009 -)

This thesis presents a novel internet-of-things (IoT) edge device, EdgeCube, a compact embedded system that combines a microcontroller unit (MCU) and a field-programmable gate array (FPGA). The proposed platform explores a trade-off between the performance gains achievable through FPGA-based acceleration and the associated increases in cost and power consumption. The primary contributions of this thesis include (1) the design of a compact hybrid MCU–FPGA edge architecture intended for vision workloads, (2) a streaming MCU-to-FPGA data path using SPI for frame transfer, and (3) an end-to-end hardware prototype and evaluation on an embedded inference task. Designed for IoT vision applications, EdgeCube …

Model-Based System Verification: Theoretical Framework, Key Technologies, And Future Prospects, Bo Sun, Yi Ren, Silin Wang, Qi Liu, Zhidong Li

Journal of System Simulation

Abstract: Traditional system verification methods face significant challenges in terms of efficiency, coverage, and traceability. To address these issues, this paper introduced model-based system verification (MBSV), which deeply integrated verification activities within the model-based systems engineering model system and evolution process. It presented the foundational logic of MBSV and proposed a multiview unified verification modeling strategy based on system modeling language (SysML), integrating requirements, structure, behavior, and constraints. The paper discussed the algorithms for selecting representative paths and reducing equivalent classes to enhance verification efficiency, the principles of test path search, as well as the intelligent path search mechanism based …

Space-Ground Integrated Collaborative Positioning Algorithm And Simulation For Trajectory Enhancement, Juhui Wei, Xinyong Zhang, Jiongqi Wang, Xuanying Zhou, Zhangming He

Journal of System Simulation

Abstract: To address the challenges of low credibility, weak consistency, and poor accuracy in the information of trajectory results from space-based and ground-based passive time difference positioning simulation systems, a space-ground integrated collaborative positioning method was proposed for trajectory enhancement. By analyzing the operating principle of the time difference positioning system, the influencing factors that measure positioning accuracy in different feature dimensions were obtained; spline smoothing was employed for data alignment between space-based and ground-based systems; a spline-constrained parametric trajectory model was proposed to further enhance the stability; an error-sensitive feature selection framework for improving simulation consistency was constructed to …

Strategic Audit - Lululemon, Jared M. Loos, David Goldsmith, Madelyn Martin, Grant Taylor, Carson Downs

Honors Program: Senior Projects (Public)

No abstract provided.

Ink (2026)

Rabble, 2014-

The student-run features magazine covering the fashion, art, music and culture worlds at VCU and in Richmond. Published annually in print and updated regularly online.

The Reason To The Rhythm: The Impact Of Music Training On Cognitive Development, Gretta Gebhard

Psychology Student Publications

Musical training is often associated with growth artistically, however its influence reaches beyond artistry into further advancement of cognitive development. This paper explores the extent of the benefits that learning to play an instrument can have on a child’s developing mind through various executive functioning, attention control, memory processing, and language based skills.

Is It Altruism Or Codependency? A Dive Into Our Relationships With Others, Livia Dietrich

Psychology Student Publications

Codependency is characterized by the tendency to put others’ needs ahead of your own. It can affect anyone; but is typically most common in mothers. This paper explores many reasons someone may fall into these patterns, such as low self-esteem or an abusive partner. Trends of relationships in one’s past, like their relationship with their parents, could also affect the likelihood of codependent tendencies. These examinations can help to identify what codependency looks like in order to repair relationships moving forward

Legalistic Noncompliance, Daniel T. Deacon, Leah M. Litman

Duke Law Journal

Will the executive branch comply with court orders? That question has garnered a considerable amount of attention over the first few months of the second Trump administration. But what does it mean to comply? And what if a form of noncompliance is already occurring?

This Article documents an emerging practice that has dominated the second Trump administration's approach to unfavorable court rulings, a practice this Article calls legalistic noncompliance. Legalistic noncompliance occurs when the administration uses the language of the law as cover to claim that it is complying with court orders when in fact it is not. Drawing …

Restoring Chevron Deference By Statute, Scott Dodson

Duke Law Journal

This Essay details a solution for legislatively restoring Chevron deference: amend the APA to direct lower federal courts to give deference to reasonable agency decisions but retain nondeferential judicial review by the U.S. Supreme Court. This solution restores most of the practical benefits of Chevron by giving agencies flexibility to implement congressional policy directives with the expertise they have acquired, by maintaining stability in administrative regulation, and by relieving lower federal courts of the burdens of nondeferential review. And retaining nondeferential judicial review in the Supreme Court will preserve the constitutional role of the judicial branch to say what the …

Journal Staff

Duke Law Journal

No abstract provided.

Originalism's Unbalanced Ledger, David Zaring

Duke Law Journal

This Essay examines the fundamental tension between originalism and cost-benefit analysis—the two dominant methodologies shaping modern, public law decision-making. Originalism, currently triumphant, prioritizes historical meaning and textual fidelity. It operates in stark contrast to cost-benefit analysis, the byword of the administrative state since 1982, which focuses on the future and efficiency. Descriptively, the two methodologies are irreconcilable. Nor is it possible to pair them by claiming they serve different purposes; originalism and cost-benefit analysis conflict when assessing agency design, constitutional rights, and judicial review of administrative action. As regulatory policymaking continues to rely on empirical and economic assessments, originalism's influence …

Shu World Review- April 20th 2026, Diplolab, Seton Hall University

SHU World Review

No abstract provided.

An Etruscan Life And Death: 2025 Findings From The Valle Gianni Archaeological Site, Skye Mccord

Exceptional Scholarship & Artistry

The site of Valle Gianni, part of The Northwest Bolsena Archaeological Project, is located on the northwest lakefront of Lake Bolsena, and harbors many Roman and Etruscan archaeological findings dating back to the late Iron Age. The purpose of this thesis is to explore the cultural traditions of the Etruscans, their place in the wider Mediterranean during the late Iron Age into Classical antiquity, and the changes to both physical landscapes and cultural landscapes after their conquest by the Romans. The site of Valle Gianni acts as a case study in the dynamics of colonization and the repurposing of sacred …

Analysis For Predicting Surface Temperature And Combustion Of Heavy-Duty, Pre-Chamber-Enabled, Hydrogen Engines, Tony Spezia

Master's Theses (2009 -)

Hydrogen as an alternative fuel shows great promise to help reduce greenhouse gas emissions from heavy duty engines. However, the challenge for hydrogen engines is that hydrogen has very different combustion properties compared to conventional hydrocarbon fuels. Hydrogen has very high flame speeds, very low ignition energy, and very wide flammability limit. These properties result in hydrogen engines being prone to abnormal combustion. Abnormal combustion makes hydrogen engines difficult to control or can cause catastrophic damage to the engine, so it is important to avoid conditions where abnormal combustion occurs. Hot spots along the combustion chamber walls are often the …