Results 61 to 70 of about 918 (260)

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

Research on single-phase grounding fault location technology in distribution networks based on impedance method

AIP Advances
This article mainly introduces the impedance based single-phase grounding fault location method for distribution networks, including its theoretical basis, algorithm steps, and simulation verification.
Sha Wang, Shengkai Wei
doaj   +1 more source

A new type of single-phase grounding fault line selection and location method for mine distribution network

Gong-kuang zidonghua, 2016
Characteristics of mine distribution network and difficulties of singlephase grounding fault line selection and location were analyzed. A new type of singlephase grounding fault line selection and location method for mine distribution network was ...
ZONG Weilin, XU Wenqiang, YUAN Yalei, DAI Jingwei, PI Jie, SONG Tianbao   +5 more
doaj   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Fault-Section Location System and Strategy for Single-Phase Ground Faults in Flexible-Grounded Distribution Networks

Electronics
Leveraging fault indicators to measure phase currents, phase-to-ground voltages, and corresponding waveforms, this paper proposes a fault section location method combined with waveform similarity analysis. A flexible neutral grounding system is developed to address the difficulty of fault detection caused by excessively small zero-sequence currents. By
Yafeng Huang, Jiaqing Sun, Junhang Ye
openaire   +1 more source

Ontology‐Aligned Structuring and Reuse of Multimodal Materials Data and Workflows Toward Automatic Reproduction

Advanced Engineering Materials, EarlyView.
Reproduction of stacking fault energy calculations from literature with a semi‐automated large language model‐assisted extraction procedure: extraction of simulation protocol, atomistic structures, computational parameters, and reported results, ontology alignment, knowledge graph construction and, finally, recomputation forvalidation.
Sepideh Baghaee Ravari, Abril Azocar Guzman, Sarath Menon, Stefan Sandfeld, Tilmann Hickel, Markus Stricker   +5 more
wiley   +1 more source

A Method Based on CNN–BiLSTM–Attention for Wind Farm Line Fault Distance Prediction

Energies
In view of the complex operating environments of wind farms and the characteristics of multi-branch mixed collector lines, in order to improve the accuracy of single-phase grounding fault location, the convolutional neural network (CNN), bidirectional ...
Ming Zhang, Qingzhong Gao, Baoliang Liu, Chen Zhang, Guangkai Zhou   +4 more
doaj   +1 more source

Single-Phase-to-Ground Fault Location Method Based on SOGI

IOP Conference Series: Materials Science and Engineering, 2018
Most fault location methods depend on the exact extraction of fault transient feature. However, due to the weak grounding current, arc grounding and intermittent problems, it is difficult to extract the fault transient feature. Based on second-order generalized integrator (SOGI), a single-phase-to-ground fault section location method for neutral point ...
openaire   +1 more source

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

Simulation research on zero-module characteristics of single-phase grounding fault in mine power supply system

Gong-kuang zidonghua, 2018
For poor actual protection effect of existing line selection methods based on characteristic quantity of single-phase grounding fault, a simulation model of mine power supply system was established in RTDS/RSCAD real-time digital simulation system taking
LUO Chao, GENG Pulong, QU Bingni, SONG Jiancheng, LIU Jucai, DU Zhili, YUAN Leiming   +6 more
doaj   +1 more source