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Dominant Feature Identification And Index Construction Of Three‑Phase Voltage Imbalance In Substation Area, Wei Zhu, Ningxiao Huang, Huiying Shu, Jie Hu, Ming Tang Jun 2025

Dominant Feature Identification And Index Construction Of Three‑Phase Voltage Imbalance In Substation Area, Wei Zhu, Ningxiao Huang, Huiying Shu, Jie Hu, Ming Tang

Journal of Electric Power Science and Technology

With a large number of power distribution substations (transformers), three-phase imbalance is a commonly observed issue. Due to the high randomness of single-phase loads in the substation area, the amplitude ranking of three-phase voltages and the imbalance degree according to the traditional algorithm change constantly. Based on the feature analysis of the sampled data, differences in the dominant phase amplitudes of three-phase voltages in each substation area during a certain period of time are obtained, identifying the severely unbalanced substation area for manual intervention. This serves as a feasible method to balance costs and benefits. A time-series matrix of the …

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Distribution Network Fault Segment Location Based On Gaf‑Resnet50, Yuxuan Shi, Yanhui Xi, Weijie Zhang Jun 2025

Distribution Network Fault Segment Location Based On Gaf‑Resnet50, Yuxuan Shi, Yanhui Xi, Weijie Zhang

Journal of Electric Power Science and Technology

Distribution lines are an integral part of modern power system, which directly influence the safety and stability of power supply. Distribution network fault location can be classified into precise fault location and fault segment location. Considering the complexity of distribution network structure, this paper proposes a fault segment location method based on Gramian angular field (GAF)-ResNet50. The one-dimensional time series is converted into a two-dimensional GAF image by the GAF algorithm, and the deeper-level fault features of the signal are extracted from the GAF image by using the framework of residual neural network so that the fault areas can be …

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A Two‑Stage Recovery Strategy For Damaged Distribution Networks Considering Cold Load Pick‑Up, Yongpeng Zhang, Lizhen Wu, Jianping Wei, Wei Chen Jun 2025

A Two‑Stage Recovery Strategy For Damaged Distribution Networks Considering Cold Load Pick‑Up, Yongpeng Zhang, Lizhen Wu, Jianping Wei, Wei Chen

Journal of Electric Power Science and Technology

The development of intelligent distribution networks has improved the self-healing ability and recovery speed of the power grid. However, when the system encounters large-scale power outages, the recovery process becomes more complex. Therefore, in response to the problem of power interruption in damaged distribution networks, this paper proposes a two-stage recovery strategy for damaged distribution networks that takes into account cold load pick-up (CLPU), aiming to generate a power restoration plan for distribution networks with switch control actions. The first stage generates traditional recovery and distributed power-assisted island power supply recovery plans that support feeder reconfiguration. In the second stage, …

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Traveling Wave Fault Location Method Of Transmission Line Based On Cpo‑Vmd, Jun Zhou, Zhenguo Qu, Ziang Zhan Jun 2025

Traveling Wave Fault Location Method Of Transmission Line Based On Cpo‑Vmd, Jun Zhou, Zhenguo Qu, Ziang Zhan

Journal of Electric Power Science and Technology

To address the low detection accuracy of traveling wave heads for long-distance transmission line faults as well as the location deviation caused by the clock asynchronization of fault detection devices and the uncertainty of traveling wave velocity, this paper proposes a new fault location method for transmission lines based on improved variational mode decomposition (VMD) combined with Teager-Kaiser energy operator (TKEO) to detect the fault traveling wave head and the double-ended traveling wave location formula independent of timing and wave velocity. Firstly, the crested porcupine optimizer (CPO) is used to optimize VMD parameters. Then the line mode and zero mode …

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Low‑Carbon Economic Scheduling For Virtual Power Plants Considering Proton Exchange Membrane Electrolyzers For Oxygen‑Enriched Combustion And Waste Heat Utilization, Dongmei Huang, Yu Tao, Wenbo Zhang, Anduo Hu, Jinzhong Sun, Yuan Sun Jun 2025

Low‑Carbon Economic Scheduling For Virtual Power Plants Considering Proton Exchange Membrane Electrolyzers For Oxygen‑Enriched Combustion And Waste Heat Utilization, Dongmei Huang, Yu Tao, Wenbo Zhang, Anduo Hu, Jinzhong Sun, Yuan Sun

Journal of Electric Power Science and Technology

In order to improve the utilization rate of clean energy and achieve low-carbon and economic operation of the power system, this paper constructs an optimal scheduling model of virtual power plants (VPPs) that aggregate wind power, photovoltaic power, oxygen‑enriched combustion, gas turbine, waste heat recovery and utilization system, and proton exchange membrane electrolyzer (PEMEL). Firstly, the electrolyzer, methanation, and proton exchange membrane fuel cell (PEMFC) are modeled from the perspective of waste heat recovery and utilization, considering the joint operation of electrolyzers and oxygen-enriched combustion power plants. Next, from the perspective of oxygen-enriched combustion power plants, the feasibility of achieving …

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Comparison And Evaluation Of Grid‑Connected Performance Of Grid‑Following And Grid‑Forming Stations Based On Game Theory And Improved Topsis, Zhen'ao Yang, Junru Chen, Yushan Liu, Jiajun Guo, Xiqiang Chang Jun 2025

Comparison And Evaluation Of Grid‑Connected Performance Of Grid‑Following And Grid‑Forming Stations Based On Game Theory And Improved Topsis, Zhen'ao Yang, Junru Chen, Yushan Liu, Jiajun Guo, Xiqiang Chang

Journal of Electric Power Science and Technology

In order to quantitatively assess the frequency/voltage support effects of grid-following and grid-forming stations, an evaluation index system to quantify the performance of the stations is proposed, considering the power support density and energy support density. First, based on the output response characteristics of grid-following and grid-forming controlled generating units in renewable energy stations, the characteristic quantities of power, voltage, and frequency are observed over multiple time scales in terms of voltage and frequency stability. Second, the coupling relationship between the indicators is considered comprehensively, and the base weights of the indicators are derived using the best-worst method (BWM) and …

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Gaussian Iterative Power Flow Algorithm For Distribution Network Considering Affine Model Of Distributed Generation, Xinghua Huang, Gonglin Zhang, Feixiong Chen, Han Wu, Yuanliang Fan, Shichuan Chen, Hongbin Wu Jun 2025

Gaussian Iterative Power Flow Algorithm For Distribution Network Considering Affine Model Of Distributed Generation, Xinghua Huang, Gonglin Zhang, Feixiong Chen, Han Wu, Yuanliang Fan, Shichuan Chen, Hongbin Wu

Journal of Electric Power Science and Technology

Affine power flow calculation is an effective method for uncertainty analysis in power systems. With the increasing integration of distributed generation (DG), the existing Gaussian iterative affine power flow algorithm faces challenges in dealing with distribution networks that incorporate DG controlled by different strategies. To address these problems, a Gaussian iterative power flow algorithm for a distribution network that integrates an affine model for DG is proposed. Firstly, an uncertainty power flow model is established based on affine arithmetic, and a Gaussian iterative model for the affine power flow model is constructed. Secondly, the affine models for DG under different …

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Single‑Phase Grounding Line Selection Method For Multi‑Terminal Power Supply Distribution Network, Wei Wang, Qinghui Lu, Shuai Lyu, Rui Cui, Peng Yang, Xianggen Yin, Jian Qiao Jun 2025

Single‑Phase Grounding Line Selection Method For Multi‑Terminal Power Supply Distribution Network, Wei Wang, Qinghui Lu, Shuai Lyu, Rui Cui, Peng Yang, Xianggen Yin, Jian Qiao

Journal of Electric Power Science and Technology

The access of the medium-voltage (MV) microgrid changes the radial structure of the traditional distribution network, causing the distribution network to operate in a multi-terminal power supply mode. The single-phase grounding (SPG) fault is a frequent fault type in distribution system, and multi-terminal power supply operation complicates the grounding fault characteristics of the distribution network. Thus, the traditional SPG line selection method is no longer applicable. This paper analyzes the network structure of the MV microgrid and the MV distribution network and establishes a multi-level multi-terminal power supply distribution network model with MV microgrid access. Then, the SPG fault characteristics …

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Multi‑Stage Constant‑Current Charging Method Of Electric Vehicle Considering User Charging Law, Shuai Yang, Xiaoping Liu, Minqi Yu, Hanjun Deng, Rui Huang, Mouhai Liu Jun 2025

Multi‑Stage Constant‑Current Charging Method Of Electric Vehicle Considering User Charging Law, Shuai Yang, Xiaoping Liu, Minqi Yu, Hanjun Deng, Rui Huang, Mouhai Liu

Journal of Electric Power Science and Technology

The rapid charging method of lithium-ion batteries for electric vehicles should also consider the influence of users’ behavior habits when considering the traditional goals such as balancing the safety, life, and charging time of the batteries. In this paper, a multi-stage constant-current charging method considering users’ behavior habits is proposed. First, Monte Carlo method is used to simulate users’ charging behaviors, and thus the state of charge (SOC) range of users’ optimal willingness to achieve is determined. Then, the dynamic equations of charging time and energy loss are established. Finally, the charging mode to obtain optimal charging current is determined …

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Topology Identification Of Low-Voltage Distribution Network Based On Latent Tree Model And Cluster Search, Hengchao Zhang, Jun Cao, Qiuying Shen Jun 2025

Topology Identification Of Low-Voltage Distribution Network Based On Latent Tree Model And Cluster Search, Hengchao Zhang, Jun Cao, Qiuying Shen

Journal of Electric Power Science and Technology

Topology information is the foundation of advanced analysis functions in distribution network, such as power flow calculation, state estimation, and fault diagnosis. Due to the inability of some nodes in the low-voltage distribution network to upload their own operational status, the existence of these implicit nodes poses a huge challenge to topology identification. This paper proposes a topology identification method for low-voltage distribution networks based on latent tree model and cluster search. Firstly, a Bayesian network with embedded implicit nodes is proposed, which is defined as a latent tree model to provide probabilistic representation for all possible low-voltage distribution network …

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Fault Detection In Switchgear Based On Rfid Sensors And Deep Learning, Zhen Wang, Ziquan Liu, Yongling Lu, Yujie Li Jun 2025

Fault Detection In Switchgear Based On Rfid Sensors And Deep Learning, Zhen Wang, Ziquan Liu, Yongling Lu, Yujie Li

Journal of Electric Power Science and Technology

In order to improve the accuracy of switchgear fault detection, this paper proposes a fault detection algorithm for switchgear based on RFID sensors and deep learning. Firstly, RFID sensing tags are designed to collect the current signals and temperature of the switchgear. Secondly, the collected signals are subjected to deep-level feature extraction through a deep belief network (DBN), and sparse coding (SC) is integrated into the DBN to improve its detection accuracy. Finally, in order to improve the detection speed, an extreme learning machine (ELM) is used to classify and recognize the signals extracted from the features. The experimental results …

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A Novel Reactive Power Support And Grounding Fault Control Composite Device Based On Station Resources, Lijun Tang, Xinjun Qian, Hongwen Liu, Chunming Tu, Zejun Huang, Qi Guo Jun 2025

A Novel Reactive Power Support And Grounding Fault Control Composite Device Based On Station Resources, Lijun Tang, Xinjun Qian, Hongwen Liu, Chunming Tu, Zejun Huang, Qi Guo

Journal of Electric Power Science and Technology

Owing to the ability of both reactive power support (RPS) and grounding fault control (GFC), composite devices have attracted extensive attention. However, most existing composite devices have some disadvantages, such as high capacity and the need for additional power supply devices. To address these problems, a novel RPS and GFC composite device (RGCD) is proposed in this paper from the idea of making full use of existing station resources. Firstly, the topology and the operation principle of RGCD are introduced. The RGCD is composed of the capacitor and the arc suppression coil in the station and the multi-functional converter (MC). …

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Photovoltaic And Energy Storage Charging And Switching Station Siting And Capacity Determination Method Considering Ultra‑High Power, Xiaonan Liu, Jian Zhang, Zhida Zhang, Jianing Duo, Shan Cheng, Shuang Hao, Yue Zhao, Haojie Wang Jun 2025

Photovoltaic And Energy Storage Charging And Switching Station Siting And Capacity Determination Method Considering Ultra‑High Power, Xiaonan Liu, Jian Zhang, Zhida Zhang, Jianing Duo, Shan Cheng, Shuang Hao, Yue Zhao, Haojie Wang

Journal of Electric Power Science and Technology

Existing studies in the planning of ultra-high power charging and switching stations lack a comprehensive depiction of user behavioral variability and stochasticity and the consideration of collaborative planning of distributed flexible resources such as photovoltaic and energy storage in the station. To this end, a two-tier siting and capacity determination method for integrated photovoltaic and energy storage charging and switching power stations involving multiple coupling factors is proposed. First, an electric vehicle charging and switching load prediction model considering user travel characteristics, temperature, and real-time road conditions is constructed. Second, to take into account user charging and switching needs and …

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Battery Capacity Degradation Prediction Of Large‑Scale Energy Storage Power Station Based On Binary Neural Network, Hang Yang, Yiguo Guo, Xiaoqing Huang, Putong Wen, Dan Xie, Qibin Bo, Yimu Fu, Jingxuan Li Jun 2025

Battery Capacity Degradation Prediction Of Large‑Scale Energy Storage Power Station Based On Binary Neural Network, Hang Yang, Yiguo Guo, Xiaoqing Huang, Putong Wen, Dan Xie, Qibin Bo, Yimu Fu, Jingxuan Li

Journal of Electric Power Science and Technology

The number of battery cells in a large-scale energy storage power station is enormous. The conventional convolutional neural networks achieve high prediction accuracy for battery capacity degradation. However, they have high demand for computational resources, which limits their application in practical battery management systems of energy storage power stations. To solve this problem, this paper proposes a battery capacity degradation prediction method based on a binary neural network. First, a lightweight model is designed by binarizing the network weights and activation functions, using the discharge capacity-voltage curve of the battery as input to output the cumulative distribution function values of …

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New Bypass Mmc Sub‑Module And Its Dc Fault Ride‑Through Strategy, Zhibo Wang, Ye Tian, Yidong Zhu Jun 2025

New Bypass Mmc Sub‑Module And Its Dc Fault Ride‑Through Strategy, Zhibo Wang, Ye Tian, Yidong Zhu

Journal of Electric Power Science and Technology

The DC short-circuit fault current cannot be blocked by the modular multilevel converter (MMC) with traditional half-bridge sub-module (HBSM), which reduces the reliability of MMC based high voltage direct current (MMC-HVDC) systems. In this paper, based on two HBSM systems, a new bypass sub-module named diode clamp dual-half-bridge sub-module (DCDHBSM) with DC fault current blocking capability is proposed. Compared with other sub-modules possessing DC short-circuit current blocking capability, the proposed DCDHBSM requires fewer power devices and has lower operation loss. Moreover, a DC fault ride-through strategy suitable for DCDHBSM is designed, and sorting algorithm is utilized to balance the post-fault …

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Unbalanced Circulating Current Injection Control Of Three‑Phase Mmc, Yufei Yue, Luhang He, Libang Wang, Yawen Zhang Jun 2025

Unbalanced Circulating Current Injection Control Of Three‑Phase Mmc, Yufei Yue, Luhang He, Libang Wang, Yawen Zhang

Journal of Electric Power Science and Technology

Modular multilevel converters (MMCs) have the problem of three-phase internal power imbalance, which easily leads to the damage of system stability and the increase of system loss. To address internal power imbalance of MMCs, this paper analyzes this problem and proposes a control method based on the injection of positive and negative sequence circulating current. The proposed method mainly includes four parts: the extraction of positive and negative sequence circulating current; the calculation of circulating current command value; the calculation of the number of input sub-modules; the acquisition of trigger signal. By injecting the extracted positive and negative sequence circulating …

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Vibration Characteristics And Signal Inversion Of Oil‑Immersed Transformer Based On Electromagnetic‑Structural Field, Feng Huang, Chun Guo, Bingbing Qiu, Xiaodan Qiu, Yi Yang, Fating Yuan, Ruiqing Ji Jun 2025

Vibration Characteristics And Signal Inversion Of Oil‑Immersed Transformer Based On Electromagnetic‑Structural Field, Feng Huang, Chun Guo, Bingbing Qiu, Xiaodan Qiu, Yi Yang, Fating Yuan, Ruiqing Ji

Journal of Electric Power Science and Technology

As critical equipment in the power system, the operation status of oil-immersed transformers directly affects the safety and stability of the power grid. Based on COMSOL, a finite element simulation software, a 10kV/400V oil-immersed transformer electromagnetic–structural multiphysics coupling calculation model is established to analyze the effect of added/unadded clamping devices on the core vibration displacement. On this basis, the vibration characteristics of the core, windings, and tank wall are analyzed, and their corresponding vibration acceleration signals are extracted. Subsequently, the Kendall and Spearman correlation coefficients are employed to calculate the correlation among the vibration signals of the core, windings, and …

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The Relationship Between Food Label Comprehension And Consumer Dietary Choices, Marline Denis Jun 2025

The Relationship Between Food Label Comprehension And Consumer Dietary Choices, Marline Denis

Walden Dissertations and Doctoral Studies

Poor dietary choices and limited understanding of nutritional information are ongoing public health concerns that contribute to the rise of chronic illnesses such as obesity, diabetes, and heart disease. This quantitative, cross-sectional, correlational study investigated the associations between health literacy and food label comprehension with consumer dietary choices and adherence to dietary guidelines among individuals aged 16 and older in the United States. Guided by the Nutrition Label Literacy (NLL) framework, this study explored whether components such as basic nutritional knowledge, numeracy skills, health motivation, and label usage predict healthier food choices. Age, education, and gender were included as covariates. …

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Strategic Planning Processes For Profitability And Sustainability Of Small Restaurants In Alberta, Olufemi Oluwasanu Baiyewun Jun 2025

Strategic Planning Processes For Profitability And Sustainability Of Small Restaurants In Alberta, Olufemi Oluwasanu Baiyewun

Walden Dissertations and Doctoral Studies

Some small restaurant managers struggle to develop and implement strategic planning processes to achieve profitability and sustainability. As customer attendance declines, these managers face economic challenges and reduced daily sales, often stemming from inadequate strategic planning that could support sustained profitability and long-term success. Grounded in resource-based view theory and dynamic capability theory, the purpose of this qualitative multiple case study was to explore the successful strategic planning processes that small restaurant business managers in Alberta, Canada, use to achieve profitability and sustainability beyond 5 years. The participants were six small restaurant managers who successfully implemented strategic planning processes to …

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A Novel Approach To Treat Trastuzumab Resistant Her2+ Breast Cancer: Activation Pkcδ, Maria Grazia Mejia Monroy Jun 2025

A Novel Approach To Treat Trastuzumab Resistant Her2+ Breast Cancer: Activation Pkcδ, Maria Grazia Mejia Monroy

Master's Theses

In the United States, approximately one in eight women will be diagnosed with invasive breast cancer in her lifetime and one in forty will die from breast cancer. From among all the different subtypes of breast cancer, HER2+ can be found in approximately 20% of breast cancer tumors. HER2 overexpression has been associated with an aggressive form of breast cancer, increasing the risk of metastasis or recurrent tumors in 50% of patients. The standard of care for HER2 positive breast cancer, trastuzumab, has been effective for some patients; however, others develop resistance over time, leading to disease progression and metastasis. …

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Transition To Organic: Alfalfa Production In Utah, Earl Creech, Ryan Larsen, Marion Murray, Jennifer R. Reeve, Michele Schahczenski Jun 2025

Transition To Organic: Alfalfa Production In Utah, Earl Creech, Ryan Larsen, Marion Murray, Jennifer R. Reeve, Michele Schahczenski

All Current Publications

Transitioning to organic production may not require drastic operational changes on the part of the producer, as alfalfa production lends itself to more organic practices by default. Producers may decide to transition to certified organic production to capture organic price premiums, access niche market opportunities, reduce the use of synthetic inputs, meet growing consumer demand, enact personal values around environmental stewardship, and support soil and biodiversity conservation. Whatever a grower’s motivation, this fact sheet covers transitioning to organic production through understanding organic production systems, the National Organic Program (NOP) regulations, and crop-specific considerations.

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The Ecology Of Gender-Based Violence For Syrian Refugee Women In Tripoli And Akkar, Dima Masoud Jun 2025

The Ecology Of Gender-Based Violence For Syrian Refugee Women In Tripoli And Akkar, Dima Masoud

Dissertations and Theses

Lebanon is a country that suffers from multiple economic, political, and health crises. Additionally, the mass displacement of Syrian refugees to Lebanon after the war in Syria over a decade ago has left Syrian refugees vulnerable, including the vulnerability of Syrian refugee women to gender-based violence (GBV). While these conditions have affected all of Lebanon, this dissertation focuses on the regions of Tripoli and Akkar in northern Lebanon. Tripoli and Akkar are regions that border Syria, which means that an influx of Syrian refugees, mostly unregistered, comes in. While other regions in Lebanon also border Syria, Tripoli and Akkar are …

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Distribution And Habitat Use Of Sounders Gray Whales From 1990 To 2023, Sara N. Mach Jun 2025

Distribution And Habitat Use Of Sounders Gray Whales From 1990 To 2023, Sara N. Mach

Honors Projects

Abstract: Every spring, a small subgroup of gray whales (Eschrichtius robustus), referred to as “Sounders,” migrate to northern Puget Sound (NPS), Washington State, to forage on small crustaceans, particularly during years of low prey availability in the Arctic, the primary foraging habitat for gray whales. In contrast to gray whales in other locations, Sounders primarily forage on ghost shrimp (Neotrypnea californiensis) while in NPS. These small crustaceans live in the sediment in the intertidal to shallow subtidal zones, so gray whales must wait for higher tides to feed. Gray whale abundance in NPS and time spent …

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Spectator 2025-06-05, Editors Of The Spectator Jun 2025

Spectator 2025-06-05, Editors Of The Spectator

The Spectator

No abstract provided.

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Clinical Practice Guideline For Systemic Lupus Erythromatosus And Lupus Nephritis, Seleaina A. Thomas Jun 2025

Clinical Practice Guideline For Systemic Lupus Erythromatosus And Lupus Nephritis, Seleaina A. Thomas

Walden Dissertations and Doctoral Studies

Summary This project addressed the critical practice problem of delayed and inaccurate diagnosis of systemic lupus erythematosus (SLE), which has been linked to increased morbidity and mortality, particularly among marginalized populations. These diagnostic challenges have been recognized globally, with international research highlighting inconsistencies in care and the absence of standardized guidelines. Implementing inclusive and equitable clinical practice guidelines (CPGs) that consider social determinants of health, political determinants of health and actively involve diverse populations in research can play a crucial role in reducing racial disparities and improve outcomes for all lupus patients. Thus, the development of a CPG focused on …

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Evaluating The Gomath! Curriculum For Supporting Middle School Students' Mathematics Learning, Janet J. Muckerheide Jun 2025

Evaluating The Gomath! Curriculum For Supporting Middle School Students' Mathematics Learning, Janet J. Muckerheide

Walden Dissertations and Doctoral Studies

The problem addressed in this study was that the GoMath! curriculum implemented in 2016 by St. Anne Middle School’s (a pseudonym) administration to support Grades 6-8 student mathematics learning had not been evaluated to determine its effectiveness. Guided by Stufflebeam’s context, input, process, and product (CIPP) evaluation model, the purpose of this project study was to evaluate if the GoMath! curriculum was effective in supporting Grades 6-8 students’ mathematics learning. This program evaluation assessed the curriculum across four CIPP dimensions: context (alignment with standards), input (teacher support and professional development [PD]), process (student engagement), and product (academic outcomes). Document analysis …

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On Closed-Form Preintegration For A Class Of Mixed-Invariant Systems In Seₙ(3), Li-Yu Lin, Kartik A. Pant, Benjamin Perseghetti, James Goppert Jun 2025

On Closed-Form Preintegration For A Class Of Mixed-Invariant Systems In Seₙ(3), Li-Yu Lin, Kartik A. Pant, Benjamin Perseghetti, James Goppert

School of Aeronautics and Astronautics Faculty Publications

A large class of nonlinear systems in engineering and robotics evolves on geometric manifolds, such as fixed-wing aircraft, quadrotors, etc., whose kinematic motion can be described using Lie groups, in particular SEn(3) . The existing techniques involve numerical integration methods such as Runge-Kutta integration to propagate their motion forward in time. However, these methods are approximate solutions and do not respect the geometric constraints of the nonlinear differential equation, leading to higher computational costs and numerical integration errors. To this end, we propose a geometric closed-form approach to solve the initial value problem for a class of nonlinear systems that …

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Why Would I Befriend A Bot? Assessing Factors Influencing The Usage Of Social Chatbots For Digital Natives, Mohammad Amin Kuhail, Jihene Mrabet, Rafiq Hijazi, Justin Thomas Jun 2025

Why Would I Befriend A Bot? Assessing Factors Influencing The Usage Of Social Chatbots For Digital Natives, Mohammad Amin Kuhail, Jihene Mrabet, Rafiq Hijazi, Justin Thomas

All Works

With advancements in artificial intelligence (AI), social chatbots (SCs) can now simulate meaningful, sympathetic interactions that blur the line between human and machine connection while also providing social and emotional support to its users. Generation Z (Gen Z), as tech-savvy digital natives, prefers individualized and emotionally engaging digital interactions, making them an important demographic for the adoption of AI-powered SCs. This study investigates the factors influencing Gen Z's use of SCs, focusing on emotional support, attitudes towards AI, loneliness, and hedonic motivation. The study employed a quantitative survey with 156 participants who interacted with an SC and completed a questionnaire …

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Exploring The Figured Worlds And Identity Of Religious Women In Mathematics-Related Majors, Rachel K. Reynolds Jun 2025

Exploring The Figured Worlds And Identity Of Religious Women In Mathematics-Related Majors, Rachel K. Reynolds

Undergraduate Honors Theses

This thesis investigates how religious women in mathematics construct and navigate their identities within the intersecting figured worlds of gender, religion, and mathematics. Drawing on Holland et al.’s (1998) theory of figured worlds and informed by identity theory, this study examines how these women experience, negotiate, and position their identities within these figured worlds. Through interviews with women who are simultaneously committed to religious life and mathematical scholarship, the research reveals that rather than perceiving conflict between these domains, participants often find points of integration and mutual reinforcement. Their narratives illuminate how identity is shaped through cultural contexts, institutional expectations, …

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Global Tracking Of Marine Megafauna Space Use Reveals How To Achieve Conservation Targets, Ana M.M. Sequeira, Jorge P. Rodríguez, Sarah A. Marley, Hannah J. Calich, Mirjam Van Der Mheen, Michelle Vancompernolle, Lucy M. Arrowsmith, Lauren R. Peel, Nuno Queiroz, Marisa Vedor, Ivo Da Costa, Gonzalo Mucientes, Ana Couto, Nicolas E. Humphries, Sara Abalo-Morla, Scott R. Benson, Scott A. Shaffer, For Full Author List, See Comments Below Jun 2025

Global Tracking Of Marine Megafauna Space Use Reveals How To Achieve Conservation Targets, Ana M.M. Sequeira, Jorge P. Rodríguez, Sarah A. Marley, Hannah J. Calich, Mirjam Van Der Mheen, Michelle Vancompernolle, Lucy M. Arrowsmith, Lauren R. Peel, Nuno Queiroz, Marisa Vedor, Ivo Da Costa, Gonzalo Mucientes, Ana Couto, Nicolas E. Humphries, Sara Abalo-Morla, Scott R. Benson, Scott A. Shaffer, For Full Author List, See Comments Below

Faculty Research, Scholarly, and Creative Activity

The recent Kunming-Montreal Global Biodiversity Framework (GBF) sets ambitious goals but no clear pathway for how zero loss of important biodiversity areas and halting human-induced extinction of threatened species will be achieved. We assembled a multi-taxa tracking dataset (11 million geopositions from 15,845 tracked individuals across 121 species) to provide a global assessment of space use of highly mobile marine megafauna, showing that 63% of the area that they cover is used 80% of the time as important migratory corridors or residence areas. The GBF 30% threshold (Target 3) will be insufficient for marine megafauna’s effective conservation, leaving important areas …

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