Results 51 to 60 of about 1,998,341 (344)

Detection of hydrophobicity grade of insulators based on AHC-YOLO algorithm

Scientific Reports
Thanks to the rapid development of image processing technology, the efficiency and accuracy of power inspection have been enhanced through deep learning techniques. However, during on-site inspections, the complexity of the background images of composite
Shaotong Pei, Weiqi Wang, Peng Wu, Chenlong Hu, Haichao Sun, Keyu Li, Mianxiao Wu, Bo Lan   +7 more
doaj   +1 more source

Understanding the Effect of Resistance Temperature Detector Temperature Controllers on Microstructural Alignment in Magnetic Freeze Casting

Advanced Engineering Materials, EarlyView.
The effect of temperature controllers that are commonly used in freeze‐casting is investigated in this work. Temperature controllers are observed to generate a voltage in the slurry. Microstructural alignment and ultimate compressive strength data show this voltage to interfere with the ability to align the microstructure using magnetic fields ...
Maddie A. Schmitz, Steven E. Naleway
wiley   +1 more source

Eggshell-inspired high-load rigid porous microcapsules for efficient self-healing of multimodal damage in insulating materials

iEnergy
To address the inherent trade-off between mechanical strength and repair efficiency in conventional microcapsule-based self-healing technologies, this study presents an eggshell-inspired approach for fabricating high-load rigid porous microcapsules ...
Chaolu Niu, Wenxia Sima, Potao Sun, Qichang Liu, Tao Yuan, Ming Yang, Zheng Fang, Hefei Wang, Wenxu Tang, Jiameng Xu, Yuhang Yang, Yuxiang Mai, Binghao Chen   +12 more
doaj   +1 more source

First-principles study of Pd-MoSe2 as sensing material for characteristic SF6 decomposition components

AIP Advances, 2019
SF6 decomposition component detection is an effective way to diagnose the severity and type of electric discharge. In this study, MoSe2 based material has been chosen as the gas sensing material for the detection of SOF2 and SO2F2, the two characteristic
Hai Qian, Jun Deng, Haibin Zhou, Xu Yang, Wei Chen   +4 more
doaj   +1 more source

Online Learning of Power Transmission Dynamics

, 2017
We consider the problem of reconstructing the dynamic state matrix of transmission power grids from time-stamped PMU measurements in the regime of ambient fluctuations. Using a maximum likelihood based approach, we construct a family of convex estimators
Chertkov, Michael, Deka, Deepjyoti, Lokhov, Andrey Y., Shemetov, Dmitry, Vuffray, Marc   +4 more
core   +1 more source

Trace Nickel Activated Biphasic Core‐CuOii/Shell‐CuOi Secondary Microspheres Enable Room Temperature Parts‐Per‐Trillion‐Level NO2 Detection

Advanced Engineering Materials, EarlyView.
An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu, Peipei Chen, Shafia Mukhtar Ibrahim, Mukhtar Lawan Adam, Attia Falak, Mokhotjwa Simon Dhlamini, Hanfu Wang, Lingxiang Jiang, Weiguo Chu   +8 more
wiley   +1 more source

Investigating the Effects of Build Height on Mechanical Behavior of Large‐Scale Laser Wire Directed Energy Deposited Nickel Titanium Alloy

Advanced Engineering Materials, EarlyView.
Laser wire directed energy deposition process was leveraged to fabricate large scale NiTi alloy wall. Evaluation of build‐height‐dependent tribo‐mechanical properties revealed significant differences in location specific sample characteristics. The middle region achieved optimal performance (superior wear resistance, balanced strength‐ductility ...
Hyunsuk Choi, Prayag Burad, Piash Bhowmik, Vishal Mahey, Yashwanth Bandari, Sougata Roy   +5 more
wiley   +1 more source

Fire Risk Assessment and Experimental Study of Transformer Insulating Oil

Advances in Civil Engineering, 2022
Most previous works concentrated on burning characteristics of pool fire using common fuels such as heptane, propane, biodiesel, and diesel, whereas burning characteristics for transformer oil are barely involved, although transformer oil is arguable of ...
Ji Jun, Chen Xin, Li Lin, Zhu Hui, Nie Jingkai, Han Yu   +5 more
doaj   +1 more source

Wireless Power Transmission

IOP Conference Series: Materials Science and Engineering, 2019
Abstract In recent days, Wireless Power Transfer (WPT) and harvesting energy received lots of attentions due to the necessity of having a flexible, suitable and secure source of energy. With the explosion of wireless technologies including wireless sensor network (WSN) like internet of things, such intelligent systems had highlighted ...
V. Bhavya Keerthi, V. Swetha, E. Annadevi   +2 more
openaire   +1 more source

Analysis of harmonics in subsea power transmission cables used in VSC-HVDC transmission systems operating under steady-state conditions [PDF]

, 2007
Subsea power cables are a critical component of a voltage-source converter-high-voltage direct current (VSC-HVDC) transmission system in any offshore electrical power scheme.
Bucknall, R.W.G., Chien, C.H.
core