Results 51 to 60 of about 55,713 (240)

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

open access: yesEnergies, 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   +1 more
doaj   +1 more source

Minimum Sparsity of Unobservable Power Network Attacks

open access: yes, 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   +2 more
core   +1 more source

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)

open access: yesAdvanced 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   +10 more
wiley   +1 more source

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

open access: yesAUT 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

open access: yesEnergija, 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

Printed Wearable Sweat Rate Sensor for Continuous In Situ Perspiration Measurement

open access: yesAdvanced 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   +6 more
wiley   +1 more source

Efficient Convex optimization for Optimal PMU Placement in Large Distribution Grids [PDF]

open access: yes2019 IEEE Milan PowerTech, 2019
The small amount of measurements in distribution grids makes their monitoring more difficult. Topological observability may not be possible, and thus, pseudo-measurements are needed to perform state estimation, which is required to control elements such as distributed generation or transformers at distribution grids.
Picallo, Miguel   +2 more
openaire   +2 more sources

Nomogram for Predicting Osteoradionecrosis After Fibula Free Flap for Mandibular Reconstruction

open access: yesHead &Neck, EarlyView.
ABSTRACT Background Osteoradionecrosis (ORN) is a severe complication following radiotherapy (RT), particularly after mandibular reconstruction with a fibula free flap. Risk prediction remains challenging due to limited data. Methods We conducted a multicenter retrospective study including 294 patients who underwent fibula free flap reconstruction and ...
Andrea Costantino   +15 more
wiley   +1 more source

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

open access: yes, 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   +3 more
core  

Targeting ligament boundaries rather than alignment boundaries in augmented‐reality‐assisted total knee arthroplasty ensures comparable gait patterns between operated and contralateral limbs

open access: yesKnee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose Modern personalised total knee arthroplasty (TKA) techniques aim to mimic natural knee kinematics by focusing on soft‐tissue dynamics rather than static alignment. However, a consistent definition of the optimal ligamentous balance has not yet been established.
Michael Engl   +9 more
wiley   +1 more source

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