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Articles 38821 - 38850 of 1738911
Full-Text Articles in Entire DC Network
From "A Writer's Life", Gay Talese
Essays From The Edge, Lee Gutkind
Consumer Decision-Making Constructs: Differences Among Generational Cohorts, Heather M. Meyer, Chloe Murphy
Consumer Decision-Making Constructs: Differences Among Generational Cohorts, Heather M. Meyer, Chloe Murphy
Mountain Plains Journal of Business and Technology
Generational cohort theory has been popular in the social sciences for decades, yet it remains a niche topic in the consumer behavior literature. Prior studies have found relationships between generational cohorts and various product categories. In this study, the relationship between generational cohorts and consumer decision-making constructs is assessed. A nationally representative survey was conducted. MANOVA and ANOVA analyses revealed relationships between generational cohorts and promotion focus, information acquisition, quality consciousness, compulsive buying, and consumer debt characteristics. A separate linear regression analysis showed significance between age and some of these decision-making characteristics. Limitations, implications, recommendations, and directions for future research …
A Pilot Study Evaluating Child Resistant Closures In Pharmaceuticals In The Developing Nation Of Ghana: Informing Global Paediatric Safety And Usability Standards, Samuel Ofosu, Kojo Agyapong Afrifah, Laura Bix
A Pilot Study Evaluating Child Resistant Closures In Pharmaceuticals In The Developing Nation Of Ghana: Informing Global Paediatric Safety And Usability Standards, Samuel Ofosu, Kojo Agyapong Afrifah, Laura Bix
Journal of Applied Packaging Research
Despite their proven effectiveness in preventing unintentional paediatric medication poisoning in high-income countries, the performance and usability of Child Resistant Closures (CRCs) remain underexplored in low and middle-income countries (LMICs).
To provide pilot data regarding the potential efficacy of using CRCs in LMICs, we conducted a study of the approach in a low-resourced region (Ghana, West Africa) by adapting testing protocols utilized in the United States (16 CFR Part 1700.20). The study utilized a convenience sample of children (n=50; 42-51 months) and adults (n=50; 50-70 years) to develop preliminary data related to the efficacy of a single design of CRC …
Commencement Ceremony
Warren C. Cowen Papers
Journal with people who attended Warren C. Cowen's commencement ceremony.
Exploring Protective Behaviours Among Users Of Mobile Financial Services, Nicholas Washington Omollo, Manoj Maharaj
Exploring Protective Behaviours Among Users Of Mobile Financial Services, Nicholas Washington Omollo, Manoj Maharaj
The African Journal of Information Systems
As digital financial services grow, users face rising risks of financial loss through mobile platforms, often due to limited awareness of protective behaviours. This study surveyed 1,159 mobile financial service (MFS) users in Kenya to examine attitudes, concerns, security adoption, and actual practices. A behavioural model was developed by integrating information security and privacy literature with the Theory of Planned Behaviour, and tested using structural equation modeling via smart-PLS. Findings reveal that prior financial loss significantly heightens security and privacy concerns, influencing attitudes toward mobile protection and intentions to adopt secure practices. Loss experiences also increase user vigilance and perceived …
Cardiac Implantable Electronic Device Infections In Saudi Arabia: Incidence, Timing, Causative Organisms, And Outcomes – A Multicenter Study, Saad Albogami, Wael Alqarawi, Ahmed Alfagih, Hiatham Alenzi, Mohammad Alshehri, Mossab Aljuaid, Saeed Alqahtani, Norah Alswaidan, Mohammad Alharbi, Norah Alkaltham, Lama Alasmri, Rghd Sadkh, Muna Albashari, Nour Alhouda, Imad Tleyjeh
Cardiac Implantable Electronic Device Infections In Saudi Arabia: Incidence, Timing, Causative Organisms, And Outcomes – A Multicenter Study, Saad Albogami, Wael Alqarawi, Ahmed Alfagih, Hiatham Alenzi, Mohammad Alshehri, Mossab Aljuaid, Saeed Alqahtani, Norah Alswaidan, Mohammad Alharbi, Norah Alkaltham, Lama Alasmri, Rghd Sadkh, Muna Albashari, Nour Alhouda, Imad Tleyjeh
Journal of the Saudi Heart Association
Background: Cardiac implantable electronic devices (CIEDs) substantially improve outcomes in cardiac patients, but device-related infection can negate these benefits. Data on the epidemiology of CIED infections in Saudi Arabia are limited. Methods: We performed a multicenter retrospective cohort study of consecutive patients receiving CIEDs (pacemakers [PPM], implantable cardioverter-defibrillators [ICD], and cardiac resynchronization devices [CRT]) at three tertiary hospitals in Riyadh, Saudi Arabia, from January 2017 through December 2021. Patients were followed for at least one year post-implantation. Data collected included patient demographics, device type (new implant, replacement, revision), infection timing and microbiology, management (device extraction vs conservative treatment), and outcomes. …
Hashtags And Hypotheses: Social Media’S Effect On College Students’ Perception Of Science, Ohemaa Koranteng
Hashtags And Hypotheses: Social Media’S Effect On College Students’ Perception Of Science, Ohemaa Koranteng
CAFE Symposium 2026
This project examines how social media influences college students’ perceptions of science and scientific information. As social media has become a primary source of news for many students, it has also increased exposure to misinformation, potentially affecting trust in science. Using a convenience sample approved by the Gettysburg College IRB, data were collected through a Google Forms survey distributed to four student groups on campus. Responses from 62 students were analyzed using Google Sheets. Results show that a majority of students rely on social media for news consumption, with many spending several hours per day on these platforms. While students …
Paternalism Vs. Progress: Chile Under Michelle Bachelet, Sasha Ilchenko
Paternalism Vs. Progress: Chile Under Michelle Bachelet, Sasha Ilchenko
CAFE Symposium 2026
Following the end of Pinochet's dictatorial rule of Chile, the country became a presidential system in which voters could elect their representatives. Michelle Bachelet was elected as Chile's first female president in 2006, and, in 2014, she was reelected for a second term. I aim to compare how her gender influenced her policymaking decisions and the public's reaction to her presidency as well as how those two themes differed between Bachelet's two terms.
Post-Traumatic Stress And Post-Traumatic Growth: A Literary Lens On Trauma, Meaning, And Survival, Audrey Gruben
Post-Traumatic Stress And Post-Traumatic Growth: A Literary Lens On Trauma, Meaning, And Survival, Audrey Gruben
CAFE Symposium 2026
This project examines how literature provides insight into these differing trauma responses by comparing Man’s Search for Meaning by Viktor Frankl and Slaughterhouse-Five by Kurt Vonnegut. Drawing on contemporary psychological frameworks of PTSD and PTG, this analysis argues that psychological distress and growth are not mutually exclusive responses to trauma. Instead, they can coexist along a spectrum shaped by meaning-making, responsibility, avoidance, and engagement with suffering.
Music As Memory And Narrative In American Graffiti And Dazed And Confused, Jacob Tone
Music As Memory And Narrative In American Graffiti And Dazed And Confused, Jacob Tone
CAFE Symposium 2026
This poster explores how George Lucas’s American Graffiti (1973) and Richard Linklater’s Dazed and Confused (1993) utilize popular music as a narrative tool to define the evolution of American youth culture. By examining the shift from the unified, diegetic radio culture of 1962 to the fragmented, ironic rock pastiche of 1976, the research highlights how Lucas creates a "communal identity" rooted in sincerity while Linklater captures the "disillusionment" of a generation adrift. Ultimately, the study demonstrates that these soundtracks are not mere background elements but serve as vital cultural archives that mediate between history and cinematic memory, shaping the way …
Balancing Acts: Gender Parity Law And Cultural Boundaries In Senegal, Seulgie Lim
Balancing Acts: Gender Parity Law And Cultural Boundaries In Senegal, Seulgie Lim
All Faculty Scholarship
This article investigates the intersection of global gender equality norms with local contexts, focusing on Senegal’s implementation of the 2010 gender parity law. Despite the global trend towards electoral gender quotas, the effectiveness and societal acceptance of these measures vary significantly. Through a critical examination of existing literature on gender quotas and an analysis of the parity law’s reception in Senegal, this article explores the nuanced dynamics between legislative measures and societal norms. It argues that, while gender quotas can enhance women’s visibility in politics, deeply ingrained cultural and religious norms may undermine the more substantive impact of such legislated …
Valentine Act And Sherman Act: Separate And Distinct Antitrust Regimes, Thomas J. Collin
Valentine Act And Sherman Act: Separate And Distinct Antitrust Regimes, Thomas J. Collin
Cleveland State Law Review
The Ohio Supreme Court has held that the Valentine Act was patterned after the Sherman Act and should be interpreted in light of federal court interpretations of the Sherman Act. The Court was wrong, and its error persists. With the exception of a private right of action provision and a borrowed definition, nothing in the Valentine Act was derived from the Sherman Act. The holding ignores text and legislative history and has foreclosed development of any independent jurisprudence for a statute intended by the General Assembly to address grave antitrust abuses. This Article analyzes the Court’s error, details the origins …
Designing A Wellness Initiative Residents Actually Use: Data From Four Years Of Opt-Out Check-Ins, Meghan O’Meara, Phd, Lpc, Alexandra Hughes, Lcsw, Shawn Blue, Psyd, Emily Lisco, Md
Designing A Wellness Initiative Residents Actually Use: Data From Four Years Of Opt-Out Check-Ins, Meghan O’Meara, Phd, Lpc, Alexandra Hughes, Lcsw, Shawn Blue, Psyd, Emily Lisco, Md
Department of Psychiatry and Human Behavior Posters
Background
- Resident well-being remains a critical concern in GME, with increasing rates of burnout, mental health challenges, and persistent barriers to accessing care.2,4
- Burnout among residents is linked to higher rates of medical errors and lower patient satisfaction.4,5
- ACGME emphasizes the importance of fostering a culture of wellness including the opportunity for residents to attend healthcare appointments during working hours; however, programs often struggle to translate these goals into sustainable, practical interventions.1
- Opt-out programs have been used to target residents and medical students to increase help-seeking and provide access to mental health care with limited barriers.
- Stigma, …
Immediate Skin-To-Skin Contact At Very Preterm Birth And Effect On Infant Socio-Emotional Stress Response And Mother–Infant Cortisol Co-Regulation: Secondary Outcomes From The Randomised Clinical Immediate Parent-Infant Skin-To-Skin Study (Ipistoss), Karoline Lode-Kolz, Siri Lillieskold, Hanne Brit Hetland, Eleonora Mascheroni, Stina Klemming, Hanne Pike, Agnes Linner, Nils J. Bergman, Bjorn Westrup, Ulrika Ådén, Evalotte Morelius, Rosario Montirosso, Wibke Jonas, Siren Rettedal
Immediate Skin-To-Skin Contact At Very Preterm Birth And Effect On Infant Socio-Emotional Stress Response And Mother–Infant Cortisol Co-Regulation: Secondary Outcomes From The Randomised Clinical Immediate Parent-Infant Skin-To-Skin Study (Ipistoss), Karoline Lode-Kolz, Siri Lillieskold, Hanne Brit Hetland, Eleonora Mascheroni, Stina Klemming, Hanne Pike, Agnes Linner, Nils J. Bergman, Bjorn Westrup, Ulrika Ådén, Evalotte Morelius, Rosario Montirosso, Wibke Jonas, Siren Rettedal
Research outputs 2022 to 2026
Objective To explore the effects of immediate parent–infant skin-to-skin contact (iSSC) at very preterm birth on maternal–infant behavioural responses and hypothalamic–pituitary–adrenal (HPA) axis reactivity to age-appropriate socio-emotional stress at 4months corrected age. Design Two secondary outcomes from a multicentre randomised controlled trial with two non-blinded parallel groups. Setting Three Scandinavian neonatal intensive care units, level 2 and level 3. Participants 91 infants born at gestational age 28+0to 32+6 from April 2018 to June 2021. Singletons and twins with a second caregiver present were included, regardless of mode of birth. Higher-order births, infants with congenital infections and major malformations were excluded. …
Mycobacteria Infection Induced Cascade Of Epigenetic Alterations Promote Training In Bystander Macrophages, Shah E. Jahan Gulzar Mr
Mycobacteria Infection Induced Cascade Of Epigenetic Alterations Promote Training In Bystander Macrophages, Shah E. Jahan Gulzar Mr
Theses and Dissertations
Mycobacterium tuberculosis (Mtb) remodels host cell functions to support its intracellular persistence. While the effects of Mtb infection on infected macrophages are well characterized, responses of uninfected bystander cells in the same microenvironment remain poorly understood. Here, we show that Mtb infection triggers widespread epigenetic reprogramming not only in infected macrophages but also in neighbouring bystander cells. These bystander macrophages acquire active chromatin marks, exhibit distinct transcriptional changes, and display enhanced immune responsiveness, thereby increasing resistance to both homologous and heterologous infections. We identify interleukin-1 beta secreted by infected cells as a key mediator of this process. Functionally, trained bystander …
Asian Reference Values For Handgrip Strength, Gait Speed, Five-Times-Sit-To-Stand Test, Muscle Mass And Calf Circumference, Jozo Grgic, Siew Ling Tey, Dieu Thi Huynh, Yen Ling Low, Zeljko Pedisic, Nina Schaller, Vanessa Kristina Wazny, Weilan Wang, Yasuhiko Saito, Ravindra P. Rannan-Eliya, Hala Ghattas Ph.D., Monique Chaaya, Carlos Mendes De Leon, Preeti Gupta, Ecosse L. Lamoureux, Mythily Subramaniam, Edimansyah Abdin, Rahul Malhotra, Angelique Chan, Bayasgalan Tumenbayar, Et. Al.
Asian Reference Values For Handgrip Strength, Gait Speed, Five-Times-Sit-To-Stand Test, Muscle Mass And Calf Circumference, Jozo Grgic, Siew Ling Tey, Dieu Thi Huynh, Yen Ling Low, Zeljko Pedisic, Nina Schaller, Vanessa Kristina Wazny, Weilan Wang, Yasuhiko Saito, Ravindra P. Rannan-Eliya, Hala Ghattas Ph.D., Monique Chaaya, Carlos Mendes De Leon, Preeti Gupta, Ecosse L. Lamoureux, Mythily Subramaniam, Edimansyah Abdin, Rahul Malhotra, Angelique Chan, Bayasgalan Tumenbayar, Et. Al.
Faculty Publications
Background:
Handgrip strength, gait speed, Five-Times-Sit-to-Stand Test (FTSST) performance, skeletal muscle mass and calf circumference are important health outcomes, particularly useful for diagnosing sarcopenia. The aim of this study was to establish reference (normative) values for handgrip strength, gait speed, FTSST performance, skeletal muscle mass and calf circumference by pooling individual participant data from national cohorts in Asia.
Methods:
We conducted a pooled analysis of individual participant data from 20 national cohorts representing 12 Asian countries (China, India, Indonesia, Israel, Japan, Lebanon, Malaysia, Mongolia, Philippines, Republic of Korea, Singapore and Sri Lanka). We included cohorts with data on at least …
Resident Mental Health: Creating An Innovative, Sustainable, And Scalable Counseling Program, Emily Lisco, Md, Alexandra Hughes, Lcsw, Shawn Blue, Psyd Thomas Jefferson University, Meghan O’Meara, Phd, Lpc
Resident Mental Health: Creating An Innovative, Sustainable, And Scalable Counseling Program, Emily Lisco, Md, Alexandra Hughes, Lcsw, Shawn Blue, Psyd Thomas Jefferson University, Meghan O’Meara, Phd, Lpc
Department of Psychiatry and Human Behavior Posters
Background
- The ACGME Common Program Requirements emphasize resident well-being and expect GME programs to support resident mental health.1
- There are limited specific guidelines on how mental health support should be delivered, resulting in wide variability.1,3
- Research on resident-specific mental health services is limited, making best practices difficult to define.
- Medical students typically receive care through student counseling centers; but this support ends after graduation.3
- Residents occupy a dual role as both hospital employees and learners, creating gaps in existing support models, as employee assistance programs are often underutilized by residents.
- Residents experience higher rates of burnout than …
Cv: Natalia Tapia (Criminal Justice), Natalia Tapia
Cv: Natalia Tapia (Criminal Justice), Natalia Tapia
Justice, Law, and Public Safety Studies Department Faculty Curricula Vitae
No abstract provided.
Use Of Integrative Self-Care To Promote Resilience And Mental Health In Nursing Students, Stacey C. Nseir, Betty Parisek, Stephanie Kelly
Use Of Integrative Self-Care To Promote Resilience And Mental Health In Nursing Students, Stacey C. Nseir, Betty Parisek, Stephanie Kelly
Creating Healthy Work Environments (CHWE)
Background: Students enrolled in nursing programs have clinical, academic, and personal challenges which can lead to depression, anxiety, and burnout (Vargas-Benitez et al., 2023). Challenges are likewise present in nurses who practice in a variety of settings and nurses have higher levels of depression, anxiety, and burnout compared to the general population (Guttormson et al., 2022). Studies have shown that the practice of self-care decreases depressive and anxiety symptomatology (Pilkington et al., 2020) and burnout (Horn, 2020) and increases resilience (Blackburn et al., 2020).
Methods: This study is a three-year prospective repeated measures cohort trial for pre-licensure nursing students entering …
Final Repository Siting Study (Rss) Detailed Evaluation And Recommendations Report, Atlantic Richfield Company, Butte Silver Bow
Final Repository Siting Study (Rss) Detailed Evaluation And Recommendations Report, Atlantic Richfield Company, Butte Silver Bow
Silver Bow Creek/Butte Area Superfund Site
No abstract provided.
Adaptive Phase-Locked Loop Strategy Based On Improved Second-Order Linear Active Disturbance Rejection Control, Hui Li, Jiaqi Zhao, Xinqiao Fan
Adaptive Phase-Locked Loop Strategy Based On Improved Second-Order Linear Active Disturbance Rejection Control, Hui Li, Jiaqi Zhao, Xinqiao Fan
Journal of Electric Power Science and Technology
To address the problems of traditional phase-locked loops (PLLs), including slow dynamic response, poor detection accuracy, and insufficient suppression capability under complex operating conditions such as grid voltage unbalance and sudden frequency changes in flexible DC transmission systems, an adaptive PLL control strategy based on improved second-order linear active disturbance rejection control (LADRC) is proposed. This strategy employs a cross-decoupled dual complex coefficient filter with a frequency feedback loop as a pre-filtering stage to extract and separate the positive- and negative-sequence components of the voltage. In addition, a first-order feedforward derivative stage is introduced at the input reference signal of …
Bi-Level Low-Carbon Optimization Operation Method For Electric Vehicle Grid Integration Considering Peak Load, Jinjin Zhao, Junjie Zhong, Jie Dai, Ziling Huang
Bi-Level Low-Carbon Optimization Operation Method For Electric Vehicle Grid Integration Considering Peak Load, Jinjin Zhao, Junjie Zhong, Jie Dai, Ziling Huang
Journal of Electric Power Science and Technology
As an emerging green energy carrier, electric vehicles (EVs), with their long idle time and energy storage characteristics, can not only relieve load pressure of the electric power grid but also achieve coordinated interaction between power sources and loads through rational scheduling, thereby reducing carbon emissions. Therefore, how to fully leverage the flexibility of EVs and develop an optimization operation strategy that takes the objectives of electric power grid safety, economy, and low carbon into account has become an urgent and critical issue. A low-carbon optimization scheduling method for peak loads is proposed, focusing on the scheduling strategy of EVs …
Static Voltage Stability Assessment Of Power Systems Based On Mwmote And Ssa-Kelm, Songkai Liu, Jun Cao, Pan Su, Kun Gao, Yuheng Wu, Ming Wan, Di Ai
Static Voltage Stability Assessment Of Power Systems Based On Mwmote And Ssa-Kelm, Songkai Liu, Jun Cao, Pan Su, Kun Gao, Yuheng Wu, Ming Wan, Di Ai
Journal of Electric Power Science and Technology
The static voltage stability assessment method of a power system based on data drive usually has the problem of an unbalanced sample category in the initial data, which makes the performance of the data-driven assessment model greatly affected. Therefore, a static voltage stability assessment method of a power system is proposed based on the majority weighted minority oversampling technique (MWMOTE) and sparrow search algorithm-kernel extreme learning machine (SSA-KELM ) . First, MWMOTE is used to solve the problem of an unbalanced sample category and increase sample diversity. Then, the KELM model parameters are optimized by using SSA, and the static …
Aggregation Optimization Method For Offshore Wind-Thermal-Storage Systems Based On Membership Degree Analysis, Da Xie, Zhou Tian, Yu Zhang, Yuchuan Wang
Aggregation Optimization Method For Offshore Wind-Thermal-Storage Systems Based On Membership Degree Analysis, Da Xie, Zhou Tian, Yu Zhang, Yuchuan Wang
Journal of Electric Power Science and Technology
To address the collaborative optimization of offshore wind-thermal-storage systems, this paper proposes an aggregation optimization method based on membership degree analysis. The proposed method enables dynamic resource aggregation and flexible scheduling by modeling and optimizing offshore wind farms, thermal power plants, and energy storage systems. Specifically, the aggregation set is generated using the Cartesian product, and initial aggregation schemes are filtered by introducing constraint conditions. A comprehensive evaluation is then conducted using membership degree analysis across three dimensions: wind power accommodation rate, economic benefit, and coordinated frequency regulation capability of thermal power. Simulation results demonstrate that the optimized aggregation configuration …
Prediction Of Transmission Line Icing In Micrometeorological Areas Based On Rf-Gswoa-Svrm, Wei Zhang, Xingjie Liu, Rui Huang, Yizhou Rao, Jianning Liu, Dan Chen
Prediction Of Transmission Line Icing In Micrometeorological Areas Based On Rf-Gswoa-Svrm, Wei Zhang, Xingjie Liu, Rui Huang, Yizhou Rao, Jianning Liu, Dan Chen
Journal of Electric Power Science and Technology
The transmission lines in the micrometeorological area are more prone to icing, so it is extremely destructive to the safe operation of the power grid system. In view of the characteristics that icing monitoring data in micrometeorological areas is scarce, and interference is strong, RF-GSWOA-SVRM, a prediction method for transmission line icing in micrometeorological areas based on random forest (RF), global search whale optimization algorithm (GSWOA), and support vector regression machine (SVRM), is proposed to improve the accuracy of icing prediction. Firstly, the RF algorithm is used to extract the correlation between transmission line icing and micrometeorological data, thereby reducing …
Dynamic Optimization Method For Provincial Distribution Network Disaster Recovery System Resources Based On Adaptive Feedback And Grey Wolf Optimization, Tianlong Wu, Longteng Wu, Zhiwei Chen, Manlu Chen, Jianyong Chen, Kaiyan Pan, Wenyi Huang
Dynamic Optimization Method For Provincial Distribution Network Disaster Recovery System Resources Based On Adaptive Feedback And Grey Wolf Optimization, Tianlong Wu, Longteng Wu, Zhiwei Chen, Manlu Chen, Jianyong Chen, Kaiyan Pan, Wenyi Huang
Journal of Electric Power Science and Technology
The large-scale integration of renewable energy sources poses significant challenges to provincial distribution network disaster recovery systems, particularly in data processing and resource optimization. Therefore, an intelligent and dynamically optimized resource management method is urgently required to enhance resource utilization efficiency, reduce operational costs, and improve system stability. This paper proposes a dynamic resource optimization method for provincial distribution network disaster recovery systems by integrating an adaptive feedback mechanism with the grey wolf optimization (GWO) algorithm. At the data acquisition layer, a multi-level adaptive feedback mechanism is introduced to realize real-time feedback control. At the resource allocation and system operation …
Hybrid Configuration Method For Grid-Forming And Grid-Following Energy Storage Systems Considering Transient Stability And Dynamic Support, Baoyu Zhai, Shuchao Liang, Zh I Xu, Huan Jiang, Haiyang Wu
Hybrid Configuration Method For Grid-Forming And Grid-Following Energy Storage Systems Considering Transient Stability And Dynamic Support, Baoyu Zhai, Shuchao Liang, Zh I Xu, Huan Jiang, Haiyang Wu
Journal of Electric Power Science and Technology
With the significant increase in the proportion of renewable energy, power systems exhibit characteristics of low inertia and weak damping, posing challenges to transient stability. Traditional grid-following energy storage systems (GFL-ESS) lack the capability to autonomously support the operation of power systems, necessitating the configuration of grid-forming energy storage systems (GFM-ESS) to provide voltage support and enhance system stability. To address these issues, this paper investigates the proportion of GFM-ESS units required to effectively improve the transient stability and dynamic support capabilities of the system. First, a transient model of the hybrid grid-following (GFL) and grid-forming (GFM) system is developed …
Transmission Line Protec Tion Method Based On Time-Frequency Analysis Matr Ix And Bp Neural Network, Jifeng Fan, Yongqiang Wang, Tianlong Zhang, Peng Chen, Yunfeng Yan
Transmission Line Protec Tion Method Based On Time-Frequency Analysis Matr Ix And Bp Neural Network, Jifeng Fan, Yongqiang Wang, Tianlong Zhang, Peng Chen, Yunfeng Yan
Journal of Electric Power Science and Technology
To address the misoperation and failure issues of existing transient protection schemes for high-voltage transmission lines, this paper proposes a transmission line protection method that combines a back propagation (BP) neural network with the time-frequency matrix of transient voltage signals. Transient protection of transmission lines is implemented based on the time-frequency analysis matrix obtained through a one-dimensional continuous wavelet transform of fault-induced voltage traveling waves. According to the existing fault voltage traveling wave data or simulated fault voltage traveling wave data, the time-frequency matrix is obtained by time-frequency analysis. The part with obvious time-frequency characteristics is taken as the input …