Digital Commons Network^™

Utilization Of Critical Care U/S Imaging Tools For Assessment Of Cardio-Pulmonary Complications In Extracorporeal Circulatory Support In Patients Post Cardiac Surgery And Ecmo, Mohamed Abdelghany Mohamed Ragab, Suzi Fawazy Mikhael, Amr Elsayed Elhadidy, Ihab Ahmed Abdelmoneim, Khalid Abdulraheem Alfariady, Abdulrahman Ibrahim Alhusil, Mohsen Salah Abdelazeem Mahmoud, Abdelraouf Fahmy, Sarah Hassan Yacoub, Fathia Adel Samter

Journal of the Saudi Heart Association

Background

Extracorporeal life support (ECLS), including extracorporeal membrane oxygenation (ECMO), is increasingly used in patients post-cardiac surgery. However, cardiopulmonary complications and delayed weaning remain common.

Objectives

This study aims to investigate the clinical course of post-cardiac surgery and extracorporeal membrane oxygenation patients using lung ultrasound and echocardiography.

Patient and methods:

This prospective multicenter observational study was conducted in the intensive care units of King Fahd Military Medical Complex, Saudi Arabia, and Cairo University, Egypt. A total of 103 adult patients requiring ECMO or post-cardiac surgery with cardiopulmonary bypass were enrolled.

Result

Postoperative echocardiographic assessment showed significant reductions in EF, TAPSE, …

Multi -Dimensional Time -Frequen Cy Charac Terization Of Transient Waveforms On Transmission Line Faults In Ne W Electric Power Systems, Li Zhang, Shengnan Li, Shiya O Wang, Shoudong Xu, Xiaotian Lu, Jinrui Tang

Journal of Electric Power Science and Technology

When large-scale new energy，energy sto rage，and large-capacity flexible alternative current （AC） and direct current （DC） transmission equipment are integrated into new electric power systems，steady-state power frequency phase，and sequence component of current and voltage waveforms in transmission line faults are mainly depend on the low voltage ride through strategy of power electronic equipment，emergency control strategy，and current limiting link of electronic components and devices.The performance of traditional relay protection algorithms is significantly based on the power frequency.A new relay protection algorithm based on non-power-frequency transient components can make full use of the transient charging and discharging process caused by transmission line faults …

2025 Celebration Of Scholarship, Creativity, And Engagement, Todd Bruns, Jaime Pedigo, Jennifer Smith, Patty Watson, Heather Wohltman, Amanda Wolf

Programs

Each year, Eastern Illinois University proudly recognizes the outstanding achievements of our faculty in research, creativity, and engagement. This collection of accomplishments reflects the dedication of an engaged faculty committed to excellence and the continual pursuit of knowledge. Many of these successes were made possible through meaningful collaboration with our students, who contribute as co-authors, research assistants, and partners in bringing ideas to life. Some of these professional milestones represent years of effort, demonstrating remarkable persistence and determination. We offer our heartfelt congratulations on this wide range of achievements, which bring distinction to our departments, colleges, and the University as …

The Effect Of A Lottery On Collusion Sustainability, Salvatore Ciucci

Fondazione Eni Enrico Mattei Working Papers

There are many evidences which prove that cartels’ price leads to an economic inefficiency, due to the reduced consumers welfare. Antitrust authorities have set up different ways to defeat and prevent collusive agreements, but as widely showed by the literature, deterring collusion may have adverse effects, like higher price in surviving cartels, reduced turnover of firms’ employees, and disincentive for competing firms to cooperate, in the sense that if firms exchange information about the evolution of demand or costs, then they may adopt better choices; moreover, deterring collusion may have even a pro-collusion effect. The paper suggests an additional anti-cartel …

Effective Behavior Management In K-12 Classrooms Without Exclusionary Discipline, Megan Prater

Graduate Teacher Education

This literature review examined the relationship between classroom management, positive behavioral interventions and supports (PBIS), and the use of exclusionary discipline practices. Fifteen qualitative, quantitative, and mixed methods studies were analyzed to examine the detrimental effects of exclusionary discipline on students and to identify how educators can utilize classroom management and PBIS to increase student engagement and appropriate behavior. While most of the studies focused on students in kindergarten through twelfth grade in the United States, some international studies were included. Reviewed research analyzed academic achievement data, student discipline data, teacher perception, and student interviews. The research emphasized the importance …

Forecasting Model Of Wind -Photovoltaic Synergy Power Based On Mutual Information Coupling Dbo -Bilstm -Attention, Yinghuan Li, Ji Cheng Liu, Yunyuan Lu, Jiakang Sun

Journal of Electric Power Science and Technology

Wind-photovoltaic synergy power is the trend in the development of new electric power systems.However，both electricity generation fluctuates greatly with the environment，which exerts an impact on the forecasting accuracy for the whole system power.This paper explores an innovative model to analyze and forecast the wind-photovoltaic synergy power for the purpose of a more accurate forecasting result.Firstly，the structure of the wind-photovoltaic synergy power system and the synergy power model of wind power and photovoltaic power are analyzed.Secondly，the relationship between the influence factors of wind power and photovoltaic power is discussed using the mutual information coupling method.Thirdly，the DBO-BiLSTM-Attention model is constructed to lay …

Scheduling Method For Carrying Capacit Y Enhancement Of New Energy Based On Nuclear Storage Coordination Under Peak S Having–Frequency Regulation Constraints, Tao Tian, Ming Huang, S Enwei Chang, Changpeng Lin, Minhui Xue, Yi Liu

Journal of Electric Power Science and Technology

With the increasing proportion of renewable energy，the pressure on peak shaving and frequency regulation in power systems is gradually intensifying，and existing scheduling methods cannot consider both system security and new energy consumption.This paper proposes a scheduling method for carrying capacity enhancement of new energy based on the coordination between nuclear power and energy storage.Firstly，by analyzing the spatiotemporal complementary characteristics of nuclear power units and energy storage devices，the coordinated role of both in peak shaving and frequency regulation is fully explored to build a scheduling model for nuclear storage coordination.Then，a collaborative transmission and distribution scheduling framework is constructed to develop reasonable …

Coordinated Expansion Planning M Odel Of New Energy Cluster Integration And Regional Power Grid S Considering Off -Grid Risks, Yunche Su, Yang Liu, Xi Aodi Wang, Yumeng Zhen, Tao Hu, Dawei Chen

Journal of Electric Power Science and Technology

Against the backdrop of large-scale new en ergy clusters and base construction，faults in the grid-connection lines of new energy collection stations may cause significant power disturbances，posing risks of inducing the cascading off-grid occurrence of new energy sources and deteriorating system frequency stability.To this end，this paper builds a coordinated expansion planning model for new energy cluster integration and regional power grids，with off-grid risks considered.Firstly，the main problems in the regional grid expansion planning under the integration of new energy clusters are analyzed.Subsequently，a coordinated planning model of new energy cluster integration and the expansion of regional power grid structures is built.Then，in the optimization …

Method Of Demand Forecasting And Dynamic Equilibrium Of Computing Resources For Grid Distribution And Consumption Tasks Based On State Iteration, Tiantian Cai, Junjian Chen, Ming Hu, Xiaohua Li, Zexiang Cai

Journal of Electric Power Science and Technology

Distributed objects on the distribution side of the network are currently massively assessed so that the tasks carried by the grid distribution and consumption terminal present the characteristics of multiple time scales and large differences in demand，which leads to the complex equilibrium problem of random fluctuation in the computing resource demand.Traditional terminals are limited by the fixed application scenarios and relatively certain resource allocation，and the terminals can only adapt passively through the “quantity for quality ” method，which is unable to solve the persistent contradiction of imbalance between the supply and demand of computing resources in terminals from the root.Therefore，a method …

Monitoring Algorithm Of Non -Intrusive Industrial Loads Based On Improved Gaf -Inception Network, Hui Li, Jiajie Gao, Rongjun Xi, Siying Chen, Yiqun Huang, Zefan Shen

Journal of Electric Power Science and Technology

In view of the existing problems of low recognition accuracy and weak generalization ability in non-intrusive load monitoring using low-frequency industrial data，a non-intrusive industrial load monitoring algorithm based on the combination of Gramian angular field （GAF） and an improved Inception network structure is proposed.The one-dimensional time series information of power is converted into two-dimensional data with temporal characteristics based on GAF.An improved Inception network is constructed，which leverages its sparse connection characteristics to perform multi-scale extraction of multi-parameter load characteristics，thereby reducing model complexity，improving computational efficiency，and achieving high-accuracy identification of industrial loads across multiple scenarios.Finally，the proposed algorithm is validated using the industrial …

Optimization Of Hydrogen Production Efficiency In Wind -Solar Grid -Connected System Considering Voltage Impact At Grid Connection Point Of Electrolytic Cell, Kankai Shen, Bingqin G Xia, Heng Nian, Jianyong Zhao, Leilei Chen

Journal of Electric Power Science and Technology

Optimization of hydrogen production power，electrolytic cell model，and voltage fluctuation at the grid connection point of the electrolytic cell can enhance the efficiency of hydrogen production in the system and increase the hydrogen yield and profits.The voltage variability at the grid connection point of the electrolytic cell results in changes in the reactive power demand of the electrolytic cell，which affects electrolytic current and diminishes hydrogen production efficiency.An energy management optimization strategy considering the voltage impact at the grid connection point of the electrolytic cell is introduced.First，a model of the reactive power demand of the electrolytic cell and its impact on hydrogen …

Low -Carbon Optimization Of Regional Integrated Energy Systems Considering Flexible And Coordinated Source -Load Response And Refined Utilization Of Hydrogen Energy, Yan Zhang, Xiaohui Yang

Journal of Electric Power Science and Technology

Building an efficient and low-carbon integrated energy system is an important way to achieve the carbon peak and carbon neutrality goals.Therefore，a regional integrated energy system （RIES） considering flexible and coordinated source-load response，and refined utilization of hydrogen energy is proposed.Firstly，a refined utilization model of hydrogen energy，including wind power hydrogen production，hydrogen fuel cells，hydrogen energy storage，and methane devices，is introduced on the source side，and the heat loss during operation is considered to construct an electricity-heat-gas-hydrogen efficient coupling model.Secondly，a waste heat power generation unit with an organic rankine cycle （ORC） is introduced on the source side to decouple the constraint of heat to electricity in …

Robust Control Of Output Voltage Of Dab Converter By Super -Twisted Sliding Mode Method, Jianlin Li, Laixin Guo, Penghui Han

Journal of Electric Power Science and Technology

The traditional sliding mode control （SMC） used for the isolated dual active bridge （DAB） converter is robust and can improve the dynamic performance of nonlinear systems.To address the disadvantages of buffeting and decreasing tracking performance，a super-twisted sliding mode control （ST-SMC） method is proposed to enhance the output voltage regulation ability and robust control ability of the converter.The ST-SMC method is adopted，and the technical advantages of the sliding mode controller are combined to effectively eliminate the buffeting problem.During the design of the sliding mode controller，the average mathematical model of the DAB converter under single-phase shift control is fully considered，and the design …

Wideband Oscillation Suppression Strategy Of Direct -Drive Wind Farms Based On Coordination Between Impedance Sensitivity And Additional Control, Xintong Yu, Jiahui Wu, Bo Wang, Rui Wang

Journal of Electric Power Science and Technology

Wideband oscillations caused by the integration of direct-drive wind farms into weak alternating current （AC） power grids seriously affect the safe and stable operation of power grids.To this end，a control strategy based on coordinated impedance sensitivity and the adjustment of additional controller parameters is proposed.Firstly，a sequence impedance model of direct-drive wind farms with different control methods is built.Meanwhile，the impedance sensitivity method is employed to analyze the influence of various control parameters on system stability and identify the dominant turbine groups that affect the grid-connected oscillation characteristics.Additionally，combined with the current spectrum analysis on the feeder of the dominant turbine group，a design …

Feedforward Strategy Of Adaptive Improvement For Grid -Connected Inverter With Extremely Weak Grid, Tieying Zhao, Peijian Tian, Junran Li, Zhiyuan Huang, Yuang Qi

Journal of Electric Power Science and Technology

With an extremely weak grid，grid-connected inverters introduce the grid voltage proportional feedforward control strategy to enhance the amplitude gain in the low-frequency band and suppress the background harmonic interference of the grid.However，when the impedance parameter of the grid increases，the phase margin of the system significantly decreases，and instability occurs.Based on the impedance characteristic analysis method，the internal mechanism of the deterioration of the system ’s phase margin is first revealed，and then proposes to connect a second-order low-pass filter on the feedforward channel in series to improve the system ’s phase margin and retain its gain effect at low frequencies as much as …

A Quantification Method Of Moisture Degree Of Oil -Paper Insulation Based On Stacking Heterogeneous Integration, Menghong Fang, Yang Zou, Xiaoxuan Chen, Yu Huang, Tao Jin

Journal of Electric Power Science and Technology

To address the issues of the limitations of the current transformer oil-paper insulation system moisture assessment model selection and the low directivity of the feature indexes for insulation moisture assessment under the synergistic effect of aging and moisture，a quantification method of the moisture degree of oil-paper insulation based on Stacking heterogeneous integration is proposed.Firstly，the mechanism analysis is conducted about the change trend of the macro insulation state under the synergistic effect of aging and moisture synergism at the micro-medium level，and multi-source heterogeneous moisture feature indexes that can eliminate the interference of aging are extracted，forming a highly correlated feature set with …

Research On Effect Of Low -Voltage Photovoltaic Power Flow Reversal On Cable Life Expectancy, Yan Li, Wenqian Zhao, Yunpeng Liu, Yongcai Tian, Xiangrui Zeng, Xiaojun Liu, Yubo Wang

Journal of Electric Power Science and Technology

With the increase in the penetration rate of distributed photovoltaic power，the power flow may be sent back to the grid side，posing new aging challenges to low-voltage （LV） photovoltaic cables.In view of the insufficient research on cable aging under the photovoltaic power flow reversal，a cable life estimation method for the LV photovoltaic power flow reversal scenario is proposed.Firstly，based on Kirchhoff ’s current law，the current distribution of the cable under different gradients is calculated，and the temperature field of the cable is analyzed using finite element simulation software.Secondly，the Arrhenius lifetime model is used to evaluate the expected lifetime，aging rate，and lifetime loss of the …

Examining Perioperative Nurses Intent To Stay Using The Job Demands-Resource Model, Vallire Hooper, Jan Odom-Forren, Sarah Wente

Creating Healthy Work Environments (CHWE)

The perioperative area has been identified as one of the top specialties where the COVID pandemic impacted nursing practice. This presentation will explore the perioperative nurse’s experience during the COVID-19 pandemic and how perceived stress, burnout, and job satisfaction may influence their intent to stay in the workforce.

Detailed abstract attached.

Reducing Stress In Frontline Caregivers With Rapid Interventions, Cheyenne Ruby, Jacqueline Kirby, Alexis Miller

Creating Healthy Work Environments (CHWE)

Stressed. Overworked. On the verge of burnout. Our caregivers need support now more than ever. Take a deep dive with us as we explore which evidence-based tools are most effective at reducing stress on-shift when frontline staff need it most.

Detailed abstract attached.

Nurse Practitioners’ Experiences With Workplace Violence During Graduate Nursing Clinical Education, Kristin Hittle Gigli, John Gonzalez

Creating Healthy Work Environments (CHWE)

During this presentation, attendees will learn about nurse practitioner students’ experience workplace violence during their clinical education, with the aim to identify opportunities to better support students in their clinical training.

Detailed abstract attached.

Optimal Scheduling Of Integrated Energy System Considering Dynamic Energy Pricing Mechanism, Xin Sun, Keying Xiang, Jingdong Xie

Journal of Electric Power Science and Technology

To better promote the interaction between supply and demand sides，stimulate the potential for demand side response，and fully consider the complex response characteristics of demand side users，a dual-layer optimization model based on a dynamic energy pricing mechanism is proposed.Firstly，the interaction behavior between multiple entities on both sides of supply and demand is considered，and a user dissatisfaction conversion coefficient is introduced.A dynamic energy pricing mechanism that takes into account the factors of user dissatisfaction is established to provide upper-layer dynamic energy prices for a comprehensive dual-layer optimization model.Then，based on the dissatisfaction factors affecting dynamic energy prices，the user dissatisfaction cost is optimized in …

Daily Eastern News: October 22, 2025, Eastern Illinois University

Daily Eastern News: 2025-2026

No abstract provided.

Research On Photovoltaic Power Forecasting Method Based On Time Series Large Model Timegpt, Wenyu Shi, Zhenyi Zhang, Dechang Yang

Journal of Electric Power Science and Technology

Currently，various statistical and machine models have been widely applied to photovoltaic （PV） power forecasting，but low forecasting accuracy is common with scarce PV historical data.Therefore，a time generative pre-trained transformer （TimeGPT ） is introduced into the short-term forecasting of PV power.Firstly，a time series large model is constructed based on a large-scale and diverse time series dataset of 100 billion data points （such as finance，traffic，banking，network traffic，weather， energy，and healthcare ）.Then，TimeGPT is fine-tuned using a small amount of PV power historical data to adapt to the data distribution and characteristics related to PV power forecasting.TimeGPT is simulated in the PV dataset with user privacy and …

Assessment Method Of Smart Electricity Meter Running State Based On Mft Model, Yuman Xie, Cong Tan, Hongq Iao Huang, Bingxiang Luo, Zhiwei Jia, Chenhao Sun

Journal of Electric Power Science and Technology

The smart electricity meter，as the terminal device for smart grid marketing，electricity information，and energy distribution，provides strong data support in various aspects such as distribution network operation and maintenance management and customer experience optimization.However，due to the complex and variable operating environment，it is difficult to accurately assess its running state.Therefore，the modified association rules mining （MARM） method is employed，which improves upon two key importance evaluation criteria in the traditional ARM model.This enhancement not only increases the accuracy of state assessment but also improves the ability to identify potential operational risks.Additionally，to reduce uncertainty when dealing with continuous features，the traditional fuzzy inference system （FIS） is enhanced …

Research On Transient Voltage Stability In Distribution Networks Based On New Hybrid Transformer, Zhiwei Chen, Jie Wang, Ng Nianwen Xia, Jie Wu, Haitao Yang, Lijian Ding, Weiguo Li, Chong Liu

Journal of Electric Power Science and Technology

The proportion of voltage sag faults in the voltage quality problem is more than 80%，which seriously threatens the safety，economy，and efficiency of electricity consumption.To solve this problem，a voltage quality control system of distribution networks for hybrid transformers is proposed.By hybrid transformers and the integration of photovoltaic units and energy storage units，three operational modes are built，including grid-connected inverter mode，islanding inverter mode，and grid-connected rectifier mode.The grid-connected power supply of photovoltaic units，compensation of voltage sag of energy storage units，and charging function of energy storage units by distribution networks are realized，respectively.Then，the functions of the system are verified by simulations. Finally，a hardware prototype test platform is …

Shape Design Of Energy Leakage Hole Of Explosion -Proof High Voltage Cable Joint, Yawen He, Youcai Li, Qiyan Li, Yongli Yu, Zhisong Jiang

Journal of Electric Power Science and Technology

In view of the lack of optimization method for the s hape design of energy leakage hole of explosion-proof high voltage cable joint，this paper uses the finite element calculation method coupled with temperature field，fluid field，and displacement field to simulate the explosion process inside the joint，and puts forward the design principle of optimizing the shape of the energy leakage hole in the copper shell of explosion-proof cable joint.An optimization method that uses the tangent value of the convergence angle of the ejected airflow from the energy leakage hole as the key parameter is proposed.Through the examples，the airflow velocity at the edge …

Enabling Coercive Drivers With Green Supply Chain Management Practices To Gain Performance Nexus Through External Collaboration And Monitoring, Aamir Rashid, Rizwana Rasheed

Publications and Research

Businesses primarily provide products or services, expand operations, and generate profits. However, they frequently disregard the environmental and economic consequences of their actions as they strive for profitability and growth. Consequently, the main objective of this research was to examine the impact of a multifaceted supply chain function on performance. Data were collected from 415 respondents employed in various manufacturing companies within a developing economy. The hypotheses were evaluated using Structural Equation Modeling (SEM) through Smart PLS. The findings discovered that ten of the thirteen hypotheses tested were supported, while three were not. Coercive drivers were observed to significantly influence …

Al-Driven Interfacial Gap Prediction In Overlapped Al/Cu Laser Weld Joint For Battery Applications, Hyeonhee Kim, Sanghoon Kang, Cheolhee Kim, Yong Hoon Jang, Minjung Kang

Mechanical and Materials Engineering Faculty Publications and Presentations

The battery tab-to-busbar welding process forms the primary electrical path in battery packs and is directly linked to both performance and safety. Variations in jig alignment, material tolerance, and forming quality can cause small interfacial gaps that lead to weak welds. An artificial intelligence (AI)-driven method was proposed in this study for predicting interfacial gaps in aluminum-copper overlap joints by integrating deep learning with multi-sensor data. A charge-coupled device (CCD) camera, spectrometer, and optical coherence tomography (OCT) sensors were employed to develop and validate deep learning models under varying gap conditions. The results revealed that the variation in melt-pool dimensions, …

The Lumberjack, October 22, 2025

Cal Poly Humboldt's Student Newspaper

The student newspaper of Humboldt State University.

Commonwealth Times 2025-10-22

Commonwealth Times, 1969-

No abstract provided.