Results 71 to 80 of about 44,267 (264)

Microstructure Reconstruction in Battery Electrodes Using Machine Learning Based on Low‐Voltage Focused Ion Beam–Scanning Electron Microscopy Tomography Images

Advanced Engineering Materials, EarlyView.
Low‐voltage FIB‐SEM tomography combined with a image preprocessing pipeline improves phase contrast and enables reliable machine‐learning segmentation of conductive networks in lithium‐ion battery electrodes. Structural descriptors are extracted from segmented images, done semimanually and automated, and compared.
Lisa Beran, Vincent Nebel, Dominik Perius, Kshitij Kumar, Yannis Heim, Laura Bies, Tobias Kraus   +6 more
wiley   +1 more source

Compatibility of Methacrylate Based Resins Controls Interfacial Failure and Toughness in 3D‐Printed Multimaterial Composites

Advanced Engineering Materials, EarlyView.
This work shows that the mechanical performance of multimaterial digital light processing (DLP) printed thermoset composites is governed by resin compatibility and interfacial design rather than spatial patterning alone. Brittle and ductile resin combinations produced premature interfacial failure, while graded interfaces and mechanically compatible ...
Ahmed M. H. Ibrahim, Li Meng, Ahmad R. Najafi, Nicolas J. Alvarez   +3 more
wiley   +1 more source

A Control Method for Unbalanced Current in Grid Type Energy Storage Based on Negative Sequence Virtual Impedance

IEEE Open Journal of Circuits and Systems
Grid type energy storage has inertia support capability, and unbalanced grid voltage will cause grid type energy storage current fluctuation and active power fluctuation.
Li You, Liangli Xiong, Gang Han, Sheng Zhang, Zhijian Fang   +4 more
doaj   +1 more source

Modeling and analysis of grid harmonic distortion impact of aggregated DG inverters

, 2011
This paper proposes an impedance-based analytical method for modeling and analysis of harmonic interactions between the grid and aggregated distributed generation (DG) inverters.
Hendrix, M.A.M.; id_orcid, Ribeiro, P.F., Hendrix, MAM Marcel, Duarte, J.L.; id_orcid, Hendrix, M.A.M., Paulo F. Ribeiro, Marcel A. M. Hendrix, Ribeiro, PF Paulo, Wang, Fei, Jorge L. Duarte, Duarte, JL Jorge, Duarte, J.L., Fei Wang, Wang, F Fei   +13 more
core   +1 more source

Feasibility of Nitrogen as a Carrier Gas for Inconel Cold Spray in Hydropower Application

Advanced Engineering Materials, EarlyView.
N2, despite being nearly two orders of magnitude cheaper than He, is a feasible carrier gas for cold spray Inconel coatings in hydropower repair applications when higher gas temperature and pressure are used. Reducing powder size significantly improved cavitation resistance, while the addition of fine chromium carbide particles further enhanced erosion
Tianhao Wang, Mayur Pole, Tingkun Liu, Kenneth A. Ross, Christopher B. Smith   +4 more
wiley   +1 more source

A Stability Control Method to Maintain Synchronization Stability of Wind Generation under Weak Grid

Energies
When wind generation systems operate under weak grid conditions, synchronization stability issues may arise, restricting the wind farms’ power transfer capacity. This paper aims to address these challenges on the grid side. Firstly, a clear exposition of
Minhai Wu, Jun Zeng, Gengning Ying, Jidong Xu, Shuangfei Yang, Yuebin Zhou, Junfeng Liu   +6 more
doaj   +1 more source

Enhanced Online Impedance Estimation of Grid-Connected Inverter Using Hybrid Pseudorandom Binary Sequence

As renewable energy sources increasingly become part of the electrical grid, the need for advanced monitoring and control systems is more pressing than ever.
Taghizadeh, F, Lu, J, Khan, MA, Bai, F
core   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

Small signal modeling and stability analysis of multi-VSCs for grid-forming converters under low impedance grid

电力工程技术
The grid-forming converter has voltage source characteristics，providing damping and frequency support to high-impedance weak grids，and demonstrates good stability. However，instability may occur under low impedance grids.
Yongkang CHEN, Yunhui HUANG, Zheng FANG, Dong WANG, Jinrui TANG, Keliang ZHOU   +5 more
doaj   +1 more source

Research on Novel Control Strategy for Grid-Connected Inverter Suitable for Wide-Range Grid Impedance Variation

, 2020
With the higher penetration of renewable energy, the influence of grid equivalent distribution cable impedance on grid-connected inverter stability is attracting increasing attention.
Xiaohuan Wang, Qingshou Yang, Chunjiang Zhang, Xudong Zhang, Yang Liu   +4 more
core   +1 more source