Results 81 to 90 of about 7,162,080 (290)

Voltage stability index prediction by using genetics algorithm-based machine learning (GBML) technique / Zainab Mohd Ghazali [PDF]

, 2007
Voltage stability is the ability of a power system to maintain acceptable voltage at all buses in the system under normal conditions and after being subjected to a disturbance.
Mohd Ghazali, Zainab
core  

An efficient method for solving the optimal sitting and sizing problem of capacitor banks based on cuckoo search algorithm

Ain Shams Engineering Journal, 2018
In this paper, a new approach to determine the optimal location and sizing of capacitor is being analyzed and the objective function is formulated to minimize power losses and voltage profile of the system subjected to equality and inequality constraints.
K.R. Devabalaji, T. Yuvaraj, K. Ravi
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

Optimal under voltage load shedding based on voltage stability index

, 2015
This paper presents a methodology for under voltage load shedding using a metaheuristic optimization technique and stability criteria. In this paper, two strategies are proposed to find the minimal amount and location of load to shed for the recovery of ...
Pérez-Londoño, Sandra Milena, Rodríguez-García, Luis Fernando, López-Rodríguez, Karol Daniela   +2 more
core   +1 more source

Assessment of the voltage stability of the power system using stability indices and artificial neural network

Science and Technology for Energy Transition
Voltage Stability Indicators (VSI) play a significant role in determining the voltage stability of the power system. In order to forecast the voltage instability of the system using voltage stability indicators, this paper presents an implementation of ...
Gupta Santosh Kumar, Mallik Sanjeev Kumar, Yadav Lokesh Kumar, Tripathi Jayant Mani, Ranjan Ashish, Sahu Pankaj, Rahman Md Atiqur, Kesh Rishi, Singh Vishnu   +8 more
doaj   +1 more source

Voltage Stability Index Calculation by Hybrid State Estimation Based on Multi Objective Optimal Phasor Measurement Unit Placement

Energies, 2019
Operation of a power system close to the voltage stability limit due to increasing of load demand and limited power sources may result in disastrous economic loss with voltage collapse of the entire power system.
Yoshiaki Matsukawa, Masayuki Watanabe, Noor Izzri Abdul Wahab, Mohammad Lutfi Othman   +3 more
doaj   +1 more source

Investigating transcription factor dynamics in health and disease using FRAP

FEBS Letters, EarlyView.
FRAP analysis of GFP‐tagged transcription factors reveals how molecular mobility and target engagement change in response to drug treatment. By combining live‐cell imaging, quantitative model fitting, and statistical analysis, this approach uncovers transcription factor dynamics linked to disease mechanisms, providing a powerful framework for ...
Kannan Govindaraj, Carolina Vazquez Garzon, Jose Joaquin Velasco, Janine N. Post   +3 more
wiley   +1 more source

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

FEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang, Hyo Been Jin, Chang Min Kim, So Yeon Lee, Hyun Ho Park   +4 more
wiley   +1 more source

Stability Margin Index of the Receiving-End Power System Based on the Whole Process Simulation

IEEE Access
With the rapid development of the Chinese power grid, its dynamic behavior becomes increasingly complex. How to prevent voltage instability and voltage collapse at the receiving-end system has become an urgent problem at present.
Li Huang
doaj   +1 more source

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

FEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta, Hari Baskar Balasubramanian, Amir Pasokh, Marietta Zille   +3 more
wiley   +1 more source