Results 51 to 60 of about 418,856 (380)

A Comprehensive Review on Optimal Location and Sizing of Reactive Power Compensation Using Hybrid-Based Approaches for Power Loss Reduction, Voltage Stability Improvement, Voltage Profile Enhancement and Loadability Enhancement

IEEE Access, 2020
With the modernization of power grids, the network optimal utilization is essential to ensure that voltage profile at each bus is maintained within an acceptable range, voltage stability of the system is enhanced, power losses in lines are minimized ...
Bazilah Ismail, Noor Izzri Abdul Wahab, Mohammad Lutfi Othman, Mohd Amran Mohd Radzi, Kanendra Naidu Vijyakumar, Muhammad Najwan Mat Naain   +5 more
doaj   +1 more source

Nowcasting lightning occurrence from commonly available meteorological parameters using machine learning techniques

npj Climate and Atmospheric Science, 2019
Lightning discharges in the atmosphere owe their existence to the combination of complex dynamic and microphysical processes. Knowledge discovery and data mining methods can be used for seeking characteristics of data and their teleconnections in complex
A. Mostajabi, D. Finney, M. Rubinstein, F. Rachidi   +3 more
semanticscholar   +1 more source

Atomistic Mechanisms Triggered by Joule Heating Effects in Metallic Cu‐Bi Nanowires for Spintronics

Advanced Materials, EarlyView.
Bi doped metallic Cu nanowires are promising for spintronics thanks to the stabilization of a giant spin Hall effect. However, heat resulting from current injection forces Bi to leave solution, forcing segregation into monoatomic decorations which evolve into coherent crystalline aggregates.
Alejandra Guedeja‐Marrón, Juan Ignacio Beltrán, Matilde Saura‐Múzquiz, Paolo Perna, M. Carmen Muñoz, Lucas Pérez, Maria Varela   +6 more
wiley   +1 more source

Statistics and variability of the altitude of elves

Geophysical Research Letters, 2016
From June 2008 to January 2016 nearly 800 elves have been recorded by a low‐light camera in northeastern Spain. Elves occur in this region mainly over the lower topped cold air mass maritime thunderstorms, peaking from November to January.
Oscar A. van derVelde, Joan Montanyà
doaj   +1 more source

Lightning discharge identification system [PDF]

, 1981
A system for differentiating between cloud to cloud and cloud to ground lightning discharges is described which includes an electric field antenna that senses the rate of charge of an electric field produced by a lightning discharge.
Lennon, C. L.
core   +1 more source

Transition of Néel‐Type and Bloch‐Néel Hybrid Skyrmion in a Metallic Multilayer Material System

Advanced Materials, EarlyView.
This work demonstrated a framework for manipulating multiple skyrmion types in [Pt/Co/Cu]5 multilayers through bias‐driven thermal effects. Distinct Néel and hybrid skyrmion phases can be selectively stabilized, enabling binary encoding beyond chirality‐based schemes.
Binbin Wang, Núria Bagués, Shuyu Cheng, Shekhar Das, Camelia Selcu, Ziling Li, Jacob B. Freyermuth, Denis V. Pelekhov, P Chris Hammel, Mohit Randeria, Roland K. Kawakami, David W. McComb   +11 more
wiley   +1 more source

Two-dimensional Optical Observation of Striking Distance of Lightning Flashes to Two Buildings in Guangzhou

应用气象学报, 2020
Lightning can strike directly on buildings, lightning protection devices or the lateral surface of buildings, endangering buildings on the ground. Effective lightning protection measures can avoid lightning damage to buildings and prevent possible fire ...
Qi Qi, Lü Weitao, Wu Bin, Ma Ying, Chen Lüwen, Jiang Ruijiao   +5 more
doaj   +1 more source

Plasmonic Metasurfaces with Structural Chirality and Pseudo‐Chirality for Enhanced Circular Dichroism and Enantiomeric Recognition

Advanced Optical Materials, EarlyView.
A planar plasmonic metasurface composed of asymmetric gold nanostructures is shown to exhibit both anisotropic and chiral/pseudo‐chiral optical responses. By tailoring the polarization and angle of incidence, the metasurface significantly enhances optical chirality and enables enantiospecific detection.
Giovanna Palermo, Bryan Guilcapi, Radoslaw Kolkowski, Alexa Guglielmelli, Dante M. Aceti, Liliana Valente, Joseph Zyss, Lucia Petti, Giuseppe Strangi   +8 more
wiley   +1 more source

Insulator fault feature extraction system of substation equipment based on machine vision

IET Networks, EarlyView., 2022
Abstract The artificial intelligence technology and intelligent automation are more and more widely used, the insulators play a supporting and insulating role in the operation of the grid. The use of machine vision inspection technology to detect insulator faults has become an inevitable trend of the times.
Keruo Jiang, Qiaoqun Xia, Lijun Ma, Xin Xu, Zhipeng Shao   +4 more
wiley   +1 more source

Spatiotemporal Characteristics of Development Speed of Downward Positive Cloud-to-ground Lightning Leader Channels in Guangzhou

应用气象学报
Positive cloud-to-ground (CG) natural lightning typically exhibits higher energy release than negative CG lightning, with greater peak current, longer duration, and larger charge transfer.
Shao Xinran, Wu Bin, Lü Weitao, Qi Qi, Lü Fanchao, Ma Ying, Chen Lüwen, Liu Hengyi, Xu Weiqun   +8 more
doaj   +1 more source