Results 51 to 60 of about 186,324 (262)

Physical Mechanism Enabled Neural Network for Power System Dynamic Security Assessment

CSEE Journal of Power and Energy Systems
Data-driven artificial intelligence technologies have emerged as increasingly fascinating tools for assessing power system security. However, their inherent mechanism of inexplicability and unreliability now limits their scalability in power systems.
Guozheng Wang, Jianbo Guo, Shicong Ma, Kui Luo, Xi Zhang, Qinglai Guo, Shixiong Fan, Tiezhu Wang, Weilin Hou   +8 more
doaj   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Grid-Scale High-Power Flywheel-Assisted Grid Frequency Regulation Technologies and Pilot Applications

CSEE Journal of Power and Energy Systems
As global energy systems transition toward high shares of renewable energy, maintaining frequency stability becomes increasingly challenging in the case of the reduced inertia and dispatchability of inverter-based resources.
Jizhen Liu, Zhongming Du, Weiming Ji, Feng Hong   +3 more
doaj   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Effect mechanism of dielectric-coated electrodes on metal particle lift-off in SF(6) gas

The Journal of Engineering, 2019
In order to study the influence mechanism of dielectrically coated electrode in SF(6) gas under DC electric field on metal particle lift-off, experimental platform is setup and motion trajectory is recorded by high-speed camera. The experiment shows that
Zhan Zhenyu, Lü Fangcheng, Liu Hongyu, Li Zhibing, Liu Yan   +4 more
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

A novel protection scheme of wind farm access to flexible DC power grid based on high frequency measurement inductance difference

International Journal of Electrical Power & Energy Systems
A protection scheme for the DC transmission line of the four-terminal flexible DC grid connected to the doubly-fed wind farm based on the high-frequency measurement inductance difference is proposed.
Jing Ma, Xieyu Lin, Yilin Wu, Xinlu Li, Shiyu Feng   +4 more
doaj   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

Field Report from Collaborative Research Center 1625: Heterogeneous Research Data Management Using Ontology Representations

Advanced Engineering Materials, EarlyView.
A unified research data management framework for heterogeneous materials data is presented. The system integrates multimodal datasets using ontologies and knowledge graphs, enabling interoperability and FAIR (findable, accessible, interoperable, reusable) data principles. By linking data across scales and workflows, it supports reproducible, Artifitial
Doaa Mohamed, Samuel García Vázquez, Behnam Mardani, Victor Dudarev, Alfred Ludwig, Maribel Acosta, Markus Stricker   +6 more
wiley   +1 more source

An oscillation source tracing method for renewable energy flexible DC transmission systems based on interaction energy weight factor and energy flow path deduction

International Journal of Electrical Power & Energy Systems
This paper proposed an oscillation source tracing method based on the interaction energy weight factor and graph theory deduction, concerning the oscillation source tracing in flexible DC transmission systems connected with new energy stations.
Jing Ma, Qiyue Zhang, Chenzhao Han, Jun Cao, Feng Wan, Hongcai Zhang   +5 more
doaj   +1 more source