Results 61 to 70 of about 781,103 (334)

Arc Fault Detection Algorithm Based on Variational Mode Decomposition and Improved Multi-Scale Fuzzy Entropy

Energies, 2021
Arc fault diagnosis is necessary for the safety and efficiency of PV stations. This study proposed an arc fault diagnosis algorithm formed by combining variational mode decomposition (VMD), improved multi-scale fuzzy entropy (IMFE), and support vector ...
Lina Wang, Hongcheng Qiu, Pu Yang, Longhua Mu   +3 more
semanticscholar   +1 more source

Polymer Interface Enables Reversible Quasi‐Solid Sulfur Conversion in Sodium‐Sulfur Batteries

Advanced Functional Materials, EarlyView.
The polymer interface enables a stable quasi‐solid sulfur conversion pathway in room‐temperature Na─S batteries. The coating regulates Na+ transport, stabilizes the cathode–electrolyte interphase, and accommodates mechanical stress, suppressing electrolyte decomposition and sulfur migration, thereby improving reaction uniformity, reducing polarization,
Reza Andaveh, Ying Zhao, Enzhong Jin, Zixin Zhang, Vinicius Martins, Parham Pirayesh, Yi Gan, Yi Yuan, Yijia Wang, Frederick Benjamin Holness, Changhong Cao, Jun Song, Yang Zhao   +12 more
wiley   +1 more source

Multi-phase System Supplied by SVM VSI: A New Fast Algorithm to Compute Duty Cycles [PDF]

, 2004
La version éditeur de cette article est disponible à l'adresse suivante : http://www.epe-association.org/epe/index.phpMany authors proposed SVM VSI applied to multi-phase ...
HAUTIER, Jean-Paul, KESTELYN, Xavier, SEMAIL, Eric   +2 more
core   +1 more source

3D Printing Innovations in Polymeric Porous and Patterned Architecture

Advanced Functional Materials, EarlyView.
Polymeric foams occupy a unique structural space between dense solids and open networks, where engineered void fraction governs mechanical compliance, thermal resistance, and mass transport. Additive manufacturing now enables precise spatial control over cellular architecture, unlocking designer foam structures across applications spanning crash ...
Dhanush Patil, Sri Vaishnavi Thummalapalli, Clarissa Westover, Arunachalam Ramanathan, M. Taylor Sobzcak, Roumika Patil, Qixuan Xiang, Tiantian Li, Sui Yang, Timothy E. Long, Hongyue Sun, Xianqiao Wang, Yang Liu, Kenan Song   +13 more
wiley   +1 more source

Weak Feature Extraction of Rolling Bearing Fault Based on Generalized Variational Mode Decomposition

Jixie chuandong, 2023
Aiming at the deficiency of variational mode decomposition (VMD) in on-demand extraction of weak feature components, a generalized VMD (GVMD) is proposed to extract the weak features of rolling bearing faults.
Guo Yanfei, Chen Gaohua, Wang Qinghua
doaj  

In Situ Crystalline‐Amorphous Composite Oxide Structure Suppressing Thermal Wear Instability for Refractory Multi‐Principal Element Alloy

Advanced Functional Materials, EarlyView.
An effective strategy is developed to overcome the medium temperatures wear resistance degradation in refractory multi‐principal element alloys. By utilizing chemical short‐range ordering to trigger oxygen‐induced amorphization, a composite oxide structure is formed, which combines high hardness with robust stiffness.
Xuhui Pei, Jianbao Zhang, Hanming Wang, Yin Du, Tao Yang, Ji‐Jung Kai, Benyebka Bou‐Saïd, Haifeng Wang   +7 more
wiley   +1 more source

Forecasting LNG prices using a multi-scale decomposition learning model

International Review of Economics & Finance
The global energy transition and geopolitical uncertainty have intensified energy-market volatility, leading to sharp fluctuations in liquefied natural gas (LNG) prices and increasing risks for energy security and market stability.
Jianping Wang, Li Xiao, Junmei Hu, Pengxiang Zhai, Yunhan Zhang   +4 more
doaj   +1 more source

Multi-Scale Fusion Algorithm Based on Structure Similarity Index Constraint for Infrared Polarization and Intensity Images

IEEE Access, 2017
At present, infrared polarization and intensity image fusion algorithms often cause fused images to appear fuzzy, making the fused image unable to be processed further.
Lei Zhang, Fengbao Yang, Linna Ji
doaj   +1 more source

Multi scale modal decomposition of primary form, waviness and roughness of surfaces [PDF]

Scanning, 2011
AbstractThis article introduces an innovative method for the multi‐scale analysis of high value‐added surfaces, which consists of applying a method based on a new parameterization. This kind of surface parameterization refers to natural modes of vibration, and is therefore named modal parameterization.
Goïc, Gaëtan Le, Favrelière, Hugues, Samper, Serge, Formosa, Fabien   +3 more
openaire   +3 more sources

Multivariable Repetitive-predictive Controllers using Frequency Decomposition [PDF]

, 2012
Repetitive control is a methodology for the tracking of a periodic reference signal. This paper develops a new approach to repetitive control systems design using receding horizon control with frequency decomposition of the reference signal.
Rogers, E, Chai, S, Wang, L, Freeman, C T, Shan Chai, Liuping Wang, Eric Rogers, Chris T. Freeman   +7 more
core   +1 more source