Results 61 to 70 of about 55,713 (240)

Optimal PMU Placement with Uncertainty Using Pareto Method [PDF]

Mathematical Problems in Engineering, 2012
This paper proposes a method for optimal placement of Phasor Measurement Units (PMUs) in state estimation considering uncertainty. State estimation has first been turned into an optimization exercise in which the objective function is selected to be the number of unobservable buses which is determined based on Singular Value Decomposition (SVD).
A. Ketabi, S. M. Nosratabadi, M. R. Sheibani   +2 more
openaire   +1 more source

Lennox–Gastaut syndrome unveiled: Advancing diagnosis, therapies, and advocacy‐insights from the Genoa International Workshop

Epilepsia, EarlyView.
Abstract Lennox–Gastaut syndrome (LGS) is one of the most severe, yet one of the most discussed, childhood‐onset developmental and epileptic encephalopathies (DEEs). Dissent among epileptologists on the definition and minimum set of electroclinical features derives from the high etiological heterogeneity within the syndrome, which could make its ...
Antonella Riva, Gianluca D'Onofrio, Elisabetta Amadori, Alexis Arzimanoglou, Stéphane Auvin, Irene Bagnasco, Paola Barabino, Valentina Biagioli, Isabella Brambilla, Giuliana Cangemi, Antonietta Coppola, Antonella De Lillo, Carlo Di Bonaventura, Giancarlo Di Gennaro, Edoardo Ferlazzo, Antonio Gil‐Nagel, Giuseppe Gobbi, Simona Lattanzi, Gerhard Kluger, Günter Krämer, Maria Margherita Mancardi, Carlo Minetti, Lino Nobili, Elisa Paravati, Milka Pringsheim, Erika Rebessi, Antonino Romeo, Angelo Russo, Emilio Russo, Katia Santoro, Susanne Schubert‐Bast, Laura Siri, Jo Sourbron, Maria Stella Vari, Alberto Verrotti, Flavio Villani, Maurizio Viri, Celina von Stülpnagel, Nelia Zamponi, Federico Zara, Pasquale Striano   +40 more
wiley   +1 more source

Full Coverage of Optimal Phasor Measurement Unit Placement Solutions in Distribution Systems Using Integer Linear Programming

Energies, 2019
Integer linear programming (ILP) has been widely applied to solve the optimal phasor measurement unit (PMU) placement (OPP) problem for its computational efficiency.
Xuebing Chen, Lu Sun, Tengpeng Chen, Yuhao Sun, Rusli, King Jet Tseng, Keck Voon Ling, Weng Khuen Ho, Gehan A. J. Amaratunga   +8 more
doaj   +1 more source

False Data Injection Attacks on Phasor Measurements That Bypass Low-rank Decomposition

, 2017
This paper studies the vulnerability of phasor measurement units (PMUs) to false data injection (FDI) attacks. Prior work demonstrated that unobservable FDI attacks that can bypass traditional bad data detectors based on measurement residuals can be ...
Chu, Zhigang, Kosut, Oliver, Sankar, Lalitha, Zhang, Jiazi   +3 more
core   +1 more source

Exercise‐induced dynamic hyperinflation in chronic obstructive pulmonary disease

Experimental Physiology, EarlyView.
Abstract Chronic obstructive pulmonary disease (COPD) is an inflammatory lung disease caused by inhalation of noxious particles, most commonly cigarette smoking. The consequent changes in airways, lung parenchyma and pulmonary vasculature lead to increased resistive, elastic and threshold loads and impaired capacity of the respiratory muscle pump. COPD
Rebecca F. D'Cruz, Dominic Wilkins, Caroline J. Jolley   +2 more
wiley   +1 more source

Online Learning of Power Transmission Dynamics

, 2017
We consider the problem of reconstructing the dynamic state matrix of transmission power grids from time-stamped PMU measurements in the regime of ambient fluctuations. Using a maximum likelihood based approach, we construct a family of convex estimators
Chertkov, Michael, Deka, Deepjyoti, Lokhov, Andrey Y., Shemetov, Dmitry, Vuffray, Marc   +4 more
core   +1 more source

Optimal PMUs placement considering ZIBs and single line and PMUs outages

AIMS Energy, 2020
Phasor measurement unit (PMU) is among the most important measurement devices in modern power systems. It measures the voltage and current phasors which have both magnitude and phase angle using a common timing reference. These measurements are utilized in real time applications of electrical power systems. The main drawback of PMUs is its high cost so
Abdelazeem A. Abdelsalam, Karim M. Hassanin, Almoataz Y. Abdelaziz, Hassan Haes Alhelou   +3 more
openaire   +2 more sources

Optimal PMU Placement for Fault Classification and Localization Using Enhanced Feature Selection in Machine Learning Algorithms

International Journal of Energy Research
Machine learning (ML) algorithms are increasingly used in power systems applications. One important application is the classification and localization of various types of transmission line faults.
A. Faza, Amjed Al-mousa, Rajaa Alqudah
semanticscholar   +1 more source

Empowering Flexible Electronics with Piezoelectric Nanogenerators: Breakthroughs from Energy Harvesting to Intelligent Sensing

Advanced Science, Volume 13, Issue 7, 3 February 2026.
This review systematically summarizes recent advances in self‐powered flexible sensing and energy storage systems based on piezoelectric nanogenerators (PENGs). It highlights their fundamental mechanisms, structural designs, and applications in health monitoring, e‐skin, and tactile sensing. The integration of PENGs with supercapacitors or batteries is
Wu‐Lin Xin, He‐Qing Cai, Xi Cui, Lu Han, Kou Zhang, Xin‐Yu Xue, Yi‐Fei Song, Juan Liu, Zhou Li   +8 more
wiley   +1 more source

Optimal Micro-PMU Placement for Improving State Estimation Accuracy via Mixed-integer Semidefinite Programming

Journal of Modern Power Systems and Clean Energy, 2023
Micro-phasor measurement units (µPMUs) with a micro-second resolution and milli-degree accuracy capability are expected to play an important role in improving the state estimation accuracy in the distribution network with increasing penetration of
Yang Peng, Zhi Wu, Wei Gu, Suyang Zhou, Pengxiang Liu   +4 more
doaj   +1 more source