Results 61 to 70 of about 10,554 (253)

Revisiting Boron Cluster Dihydrogen Bonding: Improved Reference Energies and Benchmark of Localized Coupled Cluster and DFT Methods

open access: yesInternational Journal of Quantum Chemistry, Volume 125, Issue 21, November 5, 2025.
The reference interaction energies for the diH‐norm and diH‐linear datasets have been re‐evaluated at the gold standard. These revised values serve as benchmarks to assess the accuracy of various localized‐orbital coupled‐cluster and density functional methods.
Golokesh Santra
wiley   +1 more source

Static VAr Compensator Control Using Phasor Measurement Unit Feedback Signals for Voltage Stability Improvement in Power Systems

open access: yesEnergy Science &Engineering, Volume 13, Issue 7, Page 3569-3587, July 2025.
Static VAr Compensators can provide significant improvement in power system stability. Phasor Measurement Units are used in combination with SVCs for fast and reliable control of its operation. By combining the VAr control and Voltage Regulation control methods of the SVC, superior performance is obtained.
Faris Alsalem, Ayman Faza
wiley   +1 more source

Cancer Stem Cells in Thyroid Tumors: From the Origin to Metastasis

open access: yesFrontiers in Endocrinology, 2020
Thyroid tumors are extremely heterogeneous varying from almost benign tumors with good prognosis as papillary or follicular tumors, to the undifferentiated ones with severe prognosis. Recently, several models of thyroid carcinogenesis have been described,
Veronica Veschi   +10 more
doaj   +1 more source

Analysis of the damping characteristics of two power electronics-based Devices using 'individual channel analysis and design' [PDF]

open access: yes, 2018
A comparison of the capabilities of two quite distinct power electronics-based ‘flexible AC transmission systems’ devices is presented. In particular, the damping of low frequency electromechanical oscillations is investigated aiming at improving the ...
Eduardo, Liceaga-Castro   +2 more
core   +2 more sources

Optimal Reactive Power Planning Using FACTS Devices for Voltage Stability Enhancement in Power Transmission Systems

open access: yesEnergy Science &Engineering, Volume 13, Issue 6, Page 2720-2756, June 2025.
Series and Shunt Reactive compensation can be used to improve voltage stability. The L‐index and Fast Voltage Stability Index are used to evaluate stability. Cost of reactive compensation is included directly in the optimization process. Multi‐objective optimization determines the optimal sizing of FACTS devices.
Rawan Abu Zeitawyeh, Ayman Faza
wiley   +1 more source

Orthogonal Multi‐Swarm Greedy Selection Based Sine Cosine Algorithm for Optimal FACTS Placement in Uncertain Wind Integrated Scenario Based Power Systems

open access: yesEngineering Reports, Volume 7, Issue 5, May 2025.
Orthogonal Multi‐swarm Greedy Selection Sine Cosine Algorithm (OMGSCA) effectively optimizes FACTS placement and sizing in wind‐integrated power systems, reducing operational costs and power losses while enhancing grid stability. Tested on the IEEE 30‐bus system, OMGSCA outperforms traditional methods, demonstrating superior exploration, exploitation ...
Sunilkumar P. Agrawal   +6 more
wiley   +1 more source

Firms’ Investment Behaviours in Temperature-Controlled Supply Chain Networks

open access: yesComplexity, 2021
Delivering high-quality food into markets is a vital expectation of modern customers. The significant increase in consumers’ awareness of food freshness, nutrition, and safety makes the temperature-controlled supply chain (TCSC) the focus of food ...
Mengshuai Zhu   +5 more
doaj   +1 more source

Volt/VAr Regulation of the West Mediterranean Regional Electrical Grids Using SVC/STATCOM Devices With Neural Network Algorithms

open access: yesWind Energy, Volume 28, Issue 2, February 2025.
ABSTRACT Reactive power compensation is now a challenging issue in maintaining adequate power quality and improving the performance of the transmission system. Many researchers have focused on the behavior of voltage in the unbalanced state, and the majority of the studies have been done with STATCOM. In this study, the increasing power demand in power
H. Feza Carlak, Ergin Kayar
wiley   +1 more source

Analysis of Thyristor Controlled Series Capacitor Application in Fault Current Limiter Mode [PDF]

open access: yesPort Said Engineering Research Journal, 2012
The present paper describes and analyzes the mechanism and extent by which the Thyristor Controlled Series Capacitor (TCSC) may be applied to limit fault currents through developing high inductive impedance under fault conditions.
doaj   +1 more source

Home - About - Disclaimer - Privacy