Digital Commons Network^™

High-Resolution, Fast-Response Optical Fiber Temperature Sensor With A Large Measurement Range Based On Fiber-Tip Alumina Fabry-Pérot Interferometer, Ruimin Jie, Chen Zhu, Robert Abbott, Michael Davis, Xiong Zhang, Jie Huang

Electrical and Computer Engineering Faculty Research & Creative Works

We present an alumina-tip optical fiber Fabry-Pérot interferometric temperature sensor exhibiting high-temperature performance, rapid response, and high resolution. Fabricated by fusion splicing an alumina micro disk directly to a single-mode fiber, the sensor achieves robust, stable operation without complex fabrication processes or adhesives. Experimental evaluation confirms a measurement range extending to 1000°C, with sensitivity of 28.66 pm/°C, a resolution of 0.042°C, and a rapid response time of approximately 13 ms. Compared to state-of-the-art optical fiber FPI sensors, our alumina-tip sensor offers superior overall performance, effectively addressing critical demands for high-resolution, fast-response temperature measurement in extreme environments including aerospace, structural monitoring, …

Safe Optimal Control Framework For Cooperative Manipulation Of Objects In Human–Robot Teams, Irfan Ganie, Sarangapani Jagannathan

Electrical and Computer Engineering Faculty Research & Creative Works

This article introduces a distributed deep neural network (NN)-based adaptive control framework for cooperative object manipulation in human–robot teams with unknown agent dynamics by using three distinct multilayer NN observers (MNNOs). The first observer, termed the reference point estimator, enables each robotic agent to estimate the object's reference center using consensus-based learning, even without direct access to global reference trajectories. The second observer, referred to as the human force-to-trajectory estimator, uses human-applied forces to infer the intended position, velocity, and acceleration of the object, enabling real-time estimation of human intent. Together, these two observers allow distributed estimation of human-intended motion. …

Distributed Temperature Sensing In The Spray-Cooled Shell Of A 150-Ton Dc Electric Arc Furnace Using Brillouin Optical Fiber Technology, Farhan Mumtaz, Yeshwanth Reddy Mekala, Koustav Dey, Rony Kumer Saha, Ogbole Collins Inalegwu, Manoj Kumar Pullagura, Bohong Zhang, Muhammad Roman, Nicholas Dionise, Zane Voss, Jeffrey D. Smith, Ronald J. O'Malley, Rex E. Gerald, Jie Huang

Electrical and Computer Engineering Faculty Research & Creative Works

This paper presents the deployment and validation of a Brillouin - distributed temperature sensing (DTS) system for real-time thermal monitoring of the spray-cooled upper shell of a 150-ton direct current Electric Arc Furnace (DC EAF) at Big River Steel Plant, Osceola, AR, USA. A four-channel Brillouin DTS system from OZ Optics was employed, with one active channel instrumented using an in-house-fabricated Brillouin scattering-depressed single-mode optical fiber (SMF28e+). The 60 m optical fiber sensor was fabricated, with 20 m allocated for thermal measurement and 40 m used as lead-in fiber to isolate the interrogator from the furnace environment. The fiber was …

Self-Calibrating Uav Navigation: Reinforcement Learning Approaches For Horizontal Trajectory Estimation, Shirin Nasr-Esfahani, S. Jagannathan

Electrical and Computer Engineering Faculty Research & Creative Works

Accurate unmanned aerial vehicle (UAV) trajectory estimation is essential for autonomous navigation, particularly in GPS-denied environments. Visualodometry and simultaneous localization and mapping (SLAM) approaches require precise camera intrinsic parameters, which are typically obtained through predefined or offline calibration. Instead, in this work, we propose a reinforcement learning (RL)-based self-calibration framework that estimates camera intrinsic parameters directly from monocular video sequences, without requiring prior knowledge of the camera, environment, or calibration targets. This intrinsic parameter estimation is then leveraged to achieve robust UAV trajectory estimation using only video data. We formulate the problem as a sequential decision-making task, where an RL …

Integrating Optical And Radiofrequency Interferometry For Enhanced Phase Sensing, Ruimin Jie, Zhaopeng Zhang, Chen Zhu, Jie Huang

Electrical and Computer Engineering Faculty Research & Creative Works

Interferometry is a crucial investigative technique used across diverse fields to achieve high-precision measurements. It works by analyzing the phase difference between two interfering waves, which results from variations in optical path lengths within an interferometer. We introduce a novel method for directly measuring changes in the phase difference within an optical interferometer, importantly, with the added advantage of a controllable enhancement factor. This approach is achieved through a two-step process: first, the optical phase difference is encoded into a sub-GHz radiofrequency (RF) signal using microwave-photonic manipulation; then, RF interferometry-assisted phase amplification is implemented at the destructive interference point. In …

Sapphire Optical Fiber Bragg Grating Sensors Based On Dispersive Microwave-Photonic Frequency-Time Domain Analysis, Ruimin Jie, Chen Zhu, Farhan Mumtaz, Koustav Dey, Bohong Zhang, Jie Huang

Electrical and Computer Engineering Faculty Research & Creative Works

Sapphire fiber Bragg gratings (SFBGs) have attracted growing interest for high temperature sensing in harsh environments, yet their interrogation typically relies on optical spectrum measurements, demanding a high-resolution optical spectrum analyzer (OSA) that is bulky, expensive, and constrained in acquisition speed. Moreover, the inherently multimode nature of sapphire fiber further complicates spectrum-based demodulation, thereby limiting the achievable sensing resolution. In this paper, we propose and experimentally demonstrate a microwave-photonic interrogation approach for SFBG sensors. Instead of measuring the optical reflection spectrum, the complex frequency response in the microwave domain of an SFBG is acquired using a vector network analyzer (VNA) …

Resolving Stiffness Trade-Offs In Simultaneous Pressure And Vibration Sensing Using A Corrugated-Tube Fiber-Optic Sensor, Yizheng Chen, Yan Tang, Jie Huang, Qi Zhang, Biyao Shi, Zewei Wu

Electrical and Computer Engineering Faculty Research & Creative Works

This article proposes and experimentally demonstrates a corrugated-tube-based fiber-optic sensor capable of measuring pressure, vibration, or both simultaneously. To address the limited sensitivity of conventional diaphragm-based designs, the sensor incorporates an optimized corrugated tube that balances the conflicting stiffness requirements for pressure and vibration measurements. The corrugated tube, acting as a mechanical transducer, is integrated with an extrinsic fiber-optic Fabry–Perot interferometer (EFPI). The EFPI cavity is formed between a reflective surface at the sealed end of the corrugated tube and the cleaved end face of an optical fiber fixed within a mounting assembly. In this configuration, displacement of the corrugated …

Annual Fire Safety Report, 2025, Illinois State University, Environmental Health And Safety

Fire Safety Annual Reports

The Higher Education Opportunity Act (HEOA) requires all institutions of higher education that provide residential housing facilities for students to develop an annual fire safety report. Elements of Illinois State University’s campus fire safety program consists of: fire prevention policies and practices, fire safety educational and training initiatives, description of fire protection equipment in the residence halls, emergency evacuation procedures, fire safety statistics, and plans for future improvements to the residence hall campus fire safety program. The annual fire safety report summarizes the elements of the campus fire safety program, which is administered and maintained by Environmental Health and Safety …

Annual Security Report For Calendar Year 2025, Illinois State University Police Department

Clery Act Annual Security Report

Illinois State University Police Department Annual Security Report

Should More Teams "Trust The Process" Of Tanking?, Eduardo G. Minuci, Alexander Cardazzi, Candon Johnson

Economics Faculty Publications

In many professional sport leagues, the worst-performing teams receive higher probability of earning top draft picks. This provides teams incentives to purposefully lose, or "tank," if they are not likely to contend for the playoffs or championships. We evaluate the effectiveness of tanking to improve team outcomes by examining the most explicit tanking case in the NBA: the "Trust the Process" Philadelphia 76ers. Using synthetic control, we demonstrate that tanking caused the 76ers to be more successful in terms of winning and operating income. However, only operating income had a plausibly positive present value when calculating discounted present values.

But Who Are The Victims? Reassessing The 568 Higher Education Cartel, James V. Koch

Economics Faculty Publications

Thirty prestigious independent American institutions of higher education were at some time members of the 568 higher education group (often labeled a cartel). Seventeen of them were sued by the U.S. Government and representative students who alleged that their meetings and deliberations resulted in collusion that caused students to pay higher prices. Twelve of the seventeen institutions subsequently settled their cases and by 2024 collectively had paid $284 million to do so. However, an inspection of these institutions' pricing reveals that the median 568 Group institution lowered its average real net annual cost to its undergraduate students by 19.07% between …

Oversight Of Conservatorships And Guardianships In South Dakota: A Call For Legislative Reform, Peyton Forney-Rassat

South Dakota Law Review

Courts have the legal and ethical duty to monitor guardianship and conservatorship cases in order to protect the rights and livelihoods of persons subject to such arrangements. With increased aging populations and people with disabilities in America, this has become an area of concern for both federal and local governments. Lack of data regarding the number of guardianships and conservatorships present in America, as well as the number of individuals subject to abuse in such arrangements, has become difficult to address. However, recent highly publicized cases have brought this issue to the forefront of many American minds. The number of …

A More Perfect Union? (Reviewing Erwin Chemerinsky, No Democracy Lasts Forever: How The Constitution Threatens The United States (2024)), Neil Fulton

South Dakota Law Review

It is a bold claim that the United States Constitution is a threat to democracy in the United States. It is certainly a claim that most would reject outright or be highly skeptical of at least. It is, however, exactly the claim that Erwin Chemerinsky makes in his book No Democracy Lasts Forever.

Erwin Chemerinsky is a prolific scholar, particularly of constitutional law. It is not surprising that he would produce a timely, topical, and thought-provoking book on the subject. What is surprising is his fundamental premise that the Constitution itself threatens democracy in the United States today. This provocative …

Protecting Democracy Through Servant Leadership Actions On The Jury Trial System, Laura Anne Rose

South Dakota Law Review

In the face of the declining use of the right to trial by jury, this article argues for more action by members of the legal profession, and specifically action grounded in the principles of servant leadership. The article covers the historic roots of the right to trial by jury before turning to its importance in the areas of civic education, continuing legal education, legislative efforts, and innovative interdisciplinary courses in legal education. The article posits that members of the legal profession in all stages of their careers must defend the right to trial by jury through servant-leader based action in …

Access To Justice In Indian County: Strengthening The Ecosystem Of Law In Native Communities, Mary Smith

South Dakota Law Review

No abstract provided.

When We Don’T Get Community Right In Restorative Justice Spaces: Cancel Culture And Failure To Transform, Aparna Polavarapu

Nebraska Law Review

This Article argues that community is a central but deeply misunderstood feature of restorative justice. Restorative justice asks us to understand harm as a break in relationship that creates obligations for the person harmed, the person who caused harm, and the community. Community is theorized to play a key role in working towards reintegration and social change, both goals of restorative justice. Yet in practice, community is often misused or underused in ways that weaken these goals. Practitioners are observing an increase in cancel culture actions by groups that claim affinity with restorative and transformative justice. However, by weaponizing the …

Restorative Justice Behind Bars: Evidence Supporting A Post-Adjudication Brief Intervention, Dennis E. Mcchargue Ph.D., Ashley Votruba, Casey N. Tisdale, Sarah M. Noone

Nebraska Law Review

This Article details a post-adjudication restorative justice intervention implemented in Nebraska during the 1990s. This Article summarizes research findings from samples of individuals in prison and on probation, demonstrating meaningful reductions in recidivism and harm. This brief restorative justice intervention is low-cost, group-based, and uses surrogate victim impact statements as opposed to victim-offender mediation. This intervention offers a realistic template for statutory and policy reform in jurisdictions that cannot implement more resource-intensive restorative models.

Comparing Us Medicare Coverage Options As A Contributing Mechanism To Sticking Or Switching To An Insurance Plan, Lisa M. Grabert, Brian J. Miller, Kathryn L. Wagner

College of Nursing Faculty Research and Publications

Background

In 2025, the US Medicare program is expected to spend over $1.1 trillion taxpayer dollars. A growing trend in the US Medicare program is more beneficiaries electing a private insurer, referred to as Medicare Advantage (MA), to manage their care. Since 2023, a slight majority of Medicare beneficiaries have elected to enroll in MA, yet little is understood about the mechanisms that drive beneficiaries toward their choices.

Methods

Our objective was to examine the association between comparing coverage options and ‘switching’ or ‘sticking’ with Fee-for-Service (FFS) Medicare or Medicare Advantage (MA). We conducted a panel study, using data from …

Compliance And Systems Data Management Report, Monthly Waiver Participation Trends, January 2026, Tennessee. Department Of Disability And Aging

Compliance & System Data/Reports

This monthly report provides data on various aspects of the department's activities and programs.

Compliance And Systems Data Management Report, Monthly Waiver Participation Trends, February 2026, Tennessee. Department Of Disability And Aging

Compliance & System Data/Reports

This monthly report provides data on various aspects of the department's activities and programs.

Mapping Climate Risks & Building Resilience: A Participatory Approach To Harvester Safety In Kakisa, Nwt., Susan Kerubo Ombwori

Theses and Dissertations (Comprehensive)

The Ka’a’gee Tu First Nation (KTFN) community in the Northwest Territories is experiencing rapid environmental changes which are driven by climate change. These changes are threatening the community’s food security. The community is seeing a disruption to its traditional land-based food systems due to increasing climate risks such as unpredictable weather, thawing permafrost, wildfires, and flooding. These changes are reducing access to traditional foods and intensifying threats to harvester safety. Building on the existing relationship with the community through previous projects, this thesis examines the impacts of climate risks on the availability and access of the KTFN’s on the land …

Injury To Insight: Exploring The Influence Of Media On Acl Rehabilitation Experiences Of Female Soccer Players, Chynna Ho-Young Cadogan, Jill Tracey

Theses and Dissertations (Comprehensive)

Participation in soccer inherently carries a risk of injury, with female athletes facing a significantly higher susceptibility to anterior cruciate ligament (ACL) injuries (Campbell et al., 2014; Le et al., 2025; Silvers-Granelli, 2021). The increasing participation in women’s soccer, coupled with the growing demand for its consumption through spectatorship, has contributed to a rise in ACL injuries, and increase in media coverage on this phenomenon (Parsons et al., 2021). Understanding how media narratives surrounding ACL injuries and recovery may influence rehabilitation experiences can educate coaches, mental performance consultants, athletic therapists, and female soccer players to better understand and navigate ACL …

Eeg Correlates Of Tactile Synchrony, Devon K. R. Gallagher

Theses and Dissertations (Comprehensive)

New research on the tactile system has suggested that cortical representations of body parts are not fixed, as previously thought, and are instead dynamically maintained through constant sensorimotor information and feedback. Within the somatosensory cortex (S1), the capacity for both permanent and temporary changes have been the topic of ongoing research. The current study aimed to corroborate whether 24 hours of a finger adhesion manipulation is sufficient to elicit behavioural and electrophysiological correlates from cortical reorganization of digit representations in S1, using a behavioural paradigm outlined by Kolasinski et al. (2016). Through electroencephalography (EEG) recording during a tactile discrimination task, …

Second Looks For Sentencing Equality, Joshua D. Weiss

SMU Law Review

This Article challenges a persistent assumption about the relationship between so-called “second look” laws and sentencing disparities. Courts, the United States Sentencing Commission, and scholars tend to assume that increasing judicial discretion to reduce previously imposed sentences on an individualized basis results in increased sentencing disparities. But this assumption is based on a limited focus on disparities caused by judges and fails to account for disparities caused by other institutional actors, especially prosecutors.

This Article examines the relationship between disparities and second-look laws by focusing on one such law: the federal reduction in sentence (RIS) statute, commonly referred to as …

Front Matter

Journal of Air Law and Commerce

No abstract provided.

Front Matter

Journal of Air Law and Commerce

No abstract provided.

When Planes Fall And People Die: An International And Domestic Overview Of Disaster In The Sky, Clayton Rainey

Journal of Air Law and Commerce

Commercial aviation disasters expose catastrophic breakdowns in engineering, regulatory oversight, corporate governance, and human systems. From the Boeing 737 MAX tragedies involving Lion Air Flight 610 and Ethiopian Airlines Flight 302 to the recent domestic crash of American Airlines Flight 5342, modern aviation disasters have become defining legal events that test the boundaries of product liability, federal preemption, sovereign immunity, and transnational treaty law. This Article examines how aviation mass-casualty events evolve into complex litigation involving aircraft manufacturers, airlines, regulatory agencies, and governmental entities, and how those legal frameworks differ in international versus domestic contexts.

Beyond legal doctrine, this Article …

Psychometric Properties Of The Digital Psychological Competence Scale For University Students In The Kingdom Of Saudi Arabia, Mona Saad Falih Alamri

University of Tabuk Journal for Humanities and Social Sciences

Higher education has undergone a rapid digital transformation, requiring students to navigate technology-rich learning environments that demand integrated cognitive and psychological competencies. This study aimed to develop and validate a Psychodigital Competence Scale for university students in the western region of Saudi Arabia, using a sample of 523 students. The initial version included 21 items, which were revised through expert judgment (agreement >= 80%) to produce a final 16-item, four-factor scale. Construct validity was assessed using a pilot sample, and Pearson correlations demonstrated statistically significant item-scale relationships at the 0.05 and 0.01 levels. Reliability indicators showed significant split-half reliability (p < 0.01) and a high Cronbach's alpha coefficient (0.908). Exploratory factor analysis supported data suitability (KMO = 0.85, Bartlett's test p < 0.01, determinant = 0.011), and confirmatory factor analysis validated the four-factor model. These findings confirm strong psychometric properties, establishing the scale as a reliable tool for psychological and educational research.

Improving Medical Diagnostics With Vision-Language Models: Convex Hull-Based Uncertainty Analysis, Ferhat Ozgur Catak, Murat Kuzlu, Taylor Patrick, Michel Audette

Engineering Technology Faculty Publications

In recent years, vision-language models (VLMs) have been applied to various fields, including healthcare, education, finance, and manufacturing, with remarkable performance. However, concerns remain regarding VLMs' consistency and uncertainty, particularly in critical applications such as healthcare, which demand a high level of trust and reliability. This paper proposes a novel approach to evaluate uncertainty in VLMs' responses using a convex hull approach on a healthcare application for visual question answering (VQA). For any VLM, temperature refers to a sampling parameter used in probabilistic generation, which controls the randomness of the model's output. The LLM-CXR model is selected as the medical …

Forecasting Lung Cancer Burden Using Multicenter Real-World Data, Omer Aydin, Levent Korkmaz, Aybeyan Selim, Murat Kuzlu, Ferhat Ozgur Catak, Huseyin Kusetogullari, Umit Cali

Engineering Technology Faculty Publications

Background – Lung cancer continues to place a significant clinical and operational burden on healthcare infrastructure and systems. While essential epidemiological data can be obtained from population-based registries, these systems often fail to provide information on long-term follow-up and healthcare utilization dynamics. Real-world data collected from healthcare institutions offer valuable insights; however, in-depth and careful analysis is necessary to distinguish true diagnostic trends from changes in service utilization and access.

Objectives – The primary objective of this study is to characterize and forecast the prevalence of lung cancer diagnoses at the specified hospitals for future years. The study aims to …