Results 151 to 160 of about 7,207,987 (296)

Minimizing total costs for distribution power grids considering harmonics and uncertainty of wind speed and solar radiation. [PDF]

PLoS One
Kien LC, Phu ND, Nguyen TT, Pham TD, Duong MP.   +4 more
europepmc   +1 more source

Wake‐Up and Fatigue under Electrical Cycling in HfO2‐Based Ferroelectrics: Mechanisms and Strategies toward Reliable Devices

Advanced Science, EarlyView.
HfO2‐based ferroelectrics exhibit wake‐up and fatigue behaviors during electrical cycling, significantly affecting device endurance and reliability. These phenomena are governed by defect dynamics, including oxygen vacancy redistribution and charge trapping.
Hongseok Kim, Shinhyeong Lee, Hyojun Choi, Minseung Park, Hyunah Cho, Min Hyuk Park, Yunseok Kim   +6 more
wiley   +1 more source

Electromagnetic performance analysis and multi-objective optimization of permanent magnet synchronous motors under static and dynamic rotor asymmetric offset conditions. [PDF]

Sci Rep
Dong C, Chen X, Xin Y, Dong F, Fan Z.
europepmc   +1 more source

Ferroelectric Catalysts in the Hydrogen Evolution Reaction: A Perspective

Advanced Science, EarlyView.
This perspective summarizes recent advances in ferroelectric (FE) catalysts for the hydrogen evolution reaction (HER). It first introduces HER fundamentals and FE mechanisms, then classifies FE catalysts into single‐phase, single‐atom‐modified, heterostructured, and other engineered types, with representative examples.
Rongxuan Lu, Weizhen Meng, Zhenxiang Cheng, Judy N. Hart, Michael Ferry, Sean Li, Wenxian Li   +6 more
wiley   +1 more source

Spatial-Jitter Model for Magnetoencephalography Sensor Arrays. [PDF]

IEEE Trans Med Imaging
Iivanainen J.
europepmc   +1 more source

Meet current harmonics limits - challenges and solutions

Distortion of mains current caused by non-linear loads creates harmonics that can significantly affect the the overall system efficiency and particularly power factor.
Batarelo, Sandra, Vukšić, Marko
core  

Single‐Atom‐Enhanced Fully Inkjet‐Printed Electrochemical Sensor for Dopamine Detection

Advanced Science, EarlyView.
Fully inkjet‐printed paper‐based dopamine sensors are fabricated using nitrogen‐doped graphene acid functionalized with copper single atoms. The copper sites uniquely enhance dopamine oxidation through strong molecular adsorption, as verified by electrochemical measurements and DFT calculations. The approach highlights the potential of single‐atom inks
Martin‐Alex Nalepa, David Panáček, Vítězslav Hrubý, Matěj Jendrišák, Rostislav Langer, Michal Langer, Petr Jakubec, Ivan Dědek, Vojtěch Kupka, Michal Mazur, Radek Zbořil, Michal Otyepka   +11 more
wiley   +1 more source

Power quality enhancement in wind energy applications through E2PLL-based DSTATCOM control. [PDF]

PLoS One
Özer AS, Sevilmiş F, Karaca H, Ahmed H.   +3 more
europepmc   +1 more source

Eccentricity harmonics detection-based speed estimation approach in a sensorless induction motors

, 2015
This paper presents an eccentricity harmonics detection-based speed estimation method in a sensorless efficient induction motors. Because of the influence of spectrum leakage, the motor current signature signals analysis method, which is based the stator
Hu JT(胡静涛), Zhang JL(张吉龙), Huang H(黄昊), Song XJ(宋向金)   +3 more
core  

Terahertz‐Nanoscale Visualization of the Microscopic Spin‐Charge Architecture of Colossal Magnetoresistive Switching

Advanced Science, EarlyView.
This study employs cryogenic magneto‐terahertz nanoscopy to reveal the real‐space electrodynamics of the colossal magnetoresistance transition. By capturing the terahertz electrodynamic evolution of field‐driven spin switching, the work unveils the dissipative dynamics of emergent metallic states, providing a high‐frequency view of coupled spin‐charge ...
Samuel Haeuser, Randall K. Chan, Richard H. J. Kim, Joong‐Mok Park, Martin Mootz, Thomas Koschny, Jigang Wang   +6 more
wiley   +1 more source