Results 51 to 60 of about 3,335 (199)

Minimum Sparsity of Unobservable Power Network Attacks

, 2016
Physical security of power networks under power injection attacks that alter generation and loads is studied. The system operator employs Phasor Measurement Units (PMUs) for detecting such attacks, while attackers devise attacks that are unobservable by ...
Goldsmith, Andrea, Poor, H. Vincent, Zhao, Yue   +2 more
core   +1 more source

Tunable Dynamics via Dual‐Ion Modulation for Event‐based Data Processing Using a Highly Uniform and Self‐Rectifying Memristor Array

Advanced Science, EarlyView.
Tunable dynamics of an interface‐type memristor array enabled by dual‐ion modulation through Ag nanoclusters are demonstrated. A 32 × 32 one‐resistor (1R) array exhibits 100% yield with high temporal/spatial uniformity (<3%) and a rectification ratio of 105.
Yoonho Cho, Dawon Kim, Jeonghong Lee, Dae‐won Kim, See‐On Park, Jongmin Bae, Taehwan Jang, Shinhyun Choi   +7 more
wiley   +1 more source

Optimal PMU Placement Considering with HVDC Links and Their Voltage Stability Requirements [PDF]

AUT Journal of Electrical Engineering, 2019
In wide area measurement systems, PMUs are the main component measuring real time synchronized data from different buses. Installation of PMUs at all buses is a primary way to provide full observability of the power network.
Milad Dalali, Hosein Kazemi Karegar
doaj   +1 more source

Optimalno pozicioniranje sinhrofazorskih jedinica primenom genetičkog algoritma / PMU Optimal Placement Using Genetic Algorithm

Energija, Ekonomija, Ekologija, 2022
Proces energetske tranzicije podrazumeva i veći udeo proizvodnje iz intermitentnih obnovljivih izvora energije povezanih na elektroenergetski sistem (EES), koji u kratkom periodu mogu da promene proizvodnju i tako utiču na naponske prilike i tokove snaga
Katarina Obradović, Goran Dobrić
doaj   +1 more source

Phasor Measurement Units Optimal Placement and Performance Limits for Fault Localization [PDF]

, 2020
In this paper, the performance limits of faults localization are investigated using synchrophasor data. The focus is on a non-trivial operating regime where the number of Phasor Measurement Unit (PMU) sensors available is insufficient to have full ...
Gentz, R, Jamei, M, Peisert, S, Ramakrishna, R, Roberts, C, Scaglione, A, Tesfay, T   +6 more
core  

Decoding Tattoo and Permanent Makeup Pigments: Linking Physicochemical Properties to Absorption, Distribution, Metabolism, and Elimination Profiles Using Quantitative Structure–Activity Relationship (QSAR)‐Based New Approach Methodologies (NAMs)

Advanced Intelligent Discovery, EarlyView.
This study applies QSAR‐based new approach methodologies to 90 synthetic tattoo and permanent makeup pigments, revealing systemic links between their physicochemical properties and absorption, distribution, metabolism, and elimination profiles. The correlation‐driven analysis using SwissADME, ChemBCPP, and principal component analysis uncovers insights
Girija Bansod, Ajay Vikram Singh, Preeti Bhardwaj, Tulika Rai, Sweta Vijay Nakhale, Amruta Shelar, Rajendra Patil, Peter Laux, Andreas Luch, Christopher J. Osgood, Michael W. Stacey   +10 more
wiley   +1 more source

Reliably optimal PMU placement using disparity evolution-based genetic algorithm [PDF]

, 2017
Phasor Measurement Units (PMUs) are an important component in Wide Area Protection (WAP)- based operations in power systems. It is needed that a certain placement scheme of PMUs is suggested if power system scale gets larger. The optimal placement of PMU
Matsukawa, Yoshiaki, Mitani, Yasunori, Othman, Mohammad Lutfi, Watanabe, Masayuki   +3 more
core  

Printed Wearable Sweat Rate Sensor for Continuous In Situ Perspiration Measurement

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
A wireless wearable sweat rate sensor system is presented, featuring digital 3D direct‐write printing on a flexible substrate with microfluidic layers for continuous, real‐time monitoring. Printed encapsulated metal electrodes are used for capacitance measurements, achieving high sensitivity (0.01 μL min−1) while maintaining a compact and lightweight ...
Mohammad Shafiqul Islam, Sangwon Cha, Md Farhad Hassan, Wenxin Cai, Tahsin Sejat Saniat, Cedar Rose Leach, Yasser Khan   +6 more
wiley   +1 more source

A Review of Overcurrent Protection in Smart Grids Under Cyber‐Physical Threats With a Cyber‐Physical Evaluation Framework

Energy Science &Engineering, EarlyView.
By manipulating current and voltage measurements, an assailant can induce unwanted relay action while attempting to avoid detection. Detecting advanced cyber intrusions in power protection environments requires specialised data analysis and anomaly detection methods.
Feras Alasali, Anas AlMajali, Naser Naily, Hassen Loukil, Salah AbuGhalyon, William Holderbaum, Abdelaziz Salah Saidi   +6 more
wiley   +1 more source

Optimal PMU Placement Technique to Maximize Measurement Redundancy Based on Closed Neighbourhood Search

Energies, 2021
This paper proposes a method for the optimal placement of phasor measurement units (PMUs) for the complete observability of a power system based on the degree of the neighbourhood vertices.
Lourdusamy Ramya Hyacinth, Venugopal Gomathi   +1 more
doaj   +1 more source