Results 31 to 40 of about 2,437 (183)

Solving the Optimal Reactive Power Dispatch Using Marine Predators Algorithm Considering the Uncertainties in Load and Wind-Solar Generation Systems

Energies, 2020
The optimal reactive power dispatch (ORPD) problem is an important issue to assign the most efficient and secure operating point of the electrical system.
Mohamed Ebeed, Ayman Alhejji, Salah Kamel, Francisco Jurado   +3 more
doaj   +1 more source

Optimal Siting and Sizing of SSSC Using Modified Salp Swarm Algorithm Considering Optimal Reactive Power Dispatch Problem

IEEE Access, 2021
The Flexible alternating current transmission systems (FACTS) is considered one of the most developed technologies applied for enhancing the performance of system due to their ability of adjusting different parameters in the transmission systems such as ...
Noor Habib Khan, Yong Wang, De Tian, Raheela Jamal, Salah Kamel, Mohamed Ebeed   +5 more
doaj   +1 more source

A Multi-Period Optimal Reactive Power Dispatch Approach Considering Multiple Operative Goals

Applied Sciences, 2021
The optimal reactive power dispatch (ORPD) problem plays a key role in daily power system operations. This paper presents a novel multi-period approach for the ORPD that takes into account three operative goals.
Jairo A. Morán-Burgos, Juan E. Sierra-Aguilar, Walter M. Villa-Acevedo, Jesús M. López-Lezama   +3 more
doaj   +1 more source

Long-term clinical outcomes and healthcare resource utilization in male and female patients following hospitalization for heart failure. [PDF]

Eur J Heart Fail
Clinical outcomes and resource utilization in the 5 years following hospitalization for heart failure (HF), separated by sex. All‐cause readmission and mortality were common following HF hospitalization, and a majority of deaths occurred in the hospital, with no significant differences between male and female patients.
Averbuch T, Lee SF, Zagorski B, Pandey A, Petrie MC, Biering-Sorensen T, Xie F, Van Spall HGC.   +7 more
europepmc   +2 more sources

Artificial Intelligence‐Based English Self‐Learning Effect Evaluation and Adaptive Influencing Factors Analysis

Mathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022
Under the background of continuous development in our country, traditional English education can no longer meet the needs of modern times. Through the evaluation of English autonomous learning effect of artificial intelligence and the analysis of the influencing factors of adaptability, the teaching effect of English class is improved and the students’
Xing Shu, Chengjun Xu, Man Fai Leung
wiley   +1 more source

Optimization of Regional Industrial Structure Based on Multiobjective Optimization and Fuzzy Set

Mathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022
With the development of China’s economy, it is required to change the mode of economic growth, from extensive growth mode to intensive growth mode. Therefore, the research on industrial structure is of great significance. This study proposes a regional industrial structure optimization method based on multiobjective optimization and fuzzy set. Firstly,
Lina Guo, Zaoli Yang
wiley   +1 more source

A Novel Method for Diagnosis of Broken Bars Based on Optimum Resolution of Prescient Direction Algorithm

Wireless Communications and Mobile Computing, Volume 2022, Issue 1, 2022., 2022
Fourier transformation (FT) and Multiple Signal Classification (MUSIC) method suffer the insufficient ability in diagnosing broken rotor bar (BRB) fault using short‐time data. Theoretical and simulation analyses show that the Optimum Resolution of Prescient Direction (ORPD) algorithm has the best frequency resolution performance due to a priori ...
Zhuzhi Jia, Yizhe Wang, Hongyu Zhu, Xiangjin Song, Kuruva Lakshmanna   +4 more
wiley   +1 more source

An Improved New Caledonian Crow Learning Algorithm for Global Function Optimization

Computational Intelligence and Neuroscience, Volume 2022, Issue 1, 2022., 2022
The New Caledonian crow learning algorithm (NCCLA) is a novel metaheuristic algorithm inspired by the learning behavior of New Caledonian crows learning to make tools to obtain food. However, it suffers from the problems of easily falling into local optima and insufficient convergence accuracy and convergence precision.
Yanjiao Wang, Jiaxu Song, Ziming Teng, Tongguang Ni   +3 more
wiley   +1 more source

Solution to the deterministic and stochastic Optimal Reactive Power Dispatch by integration of solar, wind-hydro powers using Modified Artificial Hummingbird Algorithm

Energy Reports, 2023
In electrical power networks, the optimal reactive power dispatch (ORPD) problem is essential to the system studies to perform reliable and secure operations by maintaining the control variable within their permissible limits.
Raheela Jamal, Junzhe Zhang, Baohui Men, Noor Habib Khan, Mohamed Ebeed, Salah Kamel   +5 more
doaj   +1 more source

Derivation and validation of a two‐variable index to predict 30‐day outcomes following heart failure hospitalization

ESC Heart Failure, Volume 8, Issue 4, Page 2690-2697, August 2021., 2021
Abstract Background The LACE index—length of stay (L), acuity (A), Charlson co‐morbidities (C), and emergent visits (E)—predicts 30‐day outcomes following heart failure (HF) hospitalization but is complex to score. A simpler LE index (length of stay and emergent visits) could offer a practical advantage in point‐of‐care risk prediction.
Tauben Averbuch, Shun Fu Lee, Mamas Andreas Mamas, Urun Erbas Oz, Richard Perez, Stuart James Connolly, Dennis Tien‐Wei Ko, Harriette Gillian Christine Van Spall   +7 more
wiley   +1 more source