Results 61 to 70 of about 259,888 (302)

Research on a Partial Discharge Expert System for the Diagnosis of Damaged Transformation Equipment

Applied Sciences
Partial discharge (PD) characteristics are very important for the diagnosis of damaged transformation equipment. If the power transmission and transformation equipment fails, it will cause large economic losses, and thus prevention is better than ...
Ping-Chang Tsai, Yu-Min Hsueh, Chang-Kuo Chen, Cheng-Chien Kuo   +3 more
doaj   +1 more source

Study of using three dimensional printer for EDM electrode fabrication [PDF]

, 2011
In this study, Cu-Al2O3 powder was prepared using ball mill and used separately for powder metallurgy (PM) and Three Dimensional Printer (3DP) application to fabricate electrode for electrical discharge machining (EDM).
Hassan, Noor Haslyena
core  

CD47 promotes mitogen‐activated protein kinase and epithelial‐to‐mesenchymal transition molecular programs to drive prometastatic phenotypes in non‐small cell lung cancer

Molecular Oncology, EarlyView.
Beyond its role in immune evasion, this study identified that CD47 drives tumor‐intrinsic signaling in non‐small cell lung cancer (NSCLC). Transcriptomic profiling and functional studies revealed that CD47 regulates cell adhesion, migration, and metastasis through an ERK–EMT signaling axis.
Asa P.Y. Lau, Lilian G. Zhai, Ryunosuke Hoshi, Zackary Rousseau, Abraam Zakhary, Yin Fang Wu, Rola M. Saleeb, Heyu Ni, Kelsie L. Thu   +8 more
wiley   +1 more source

Propagation of Partial Discharge Pulses in Winding

Advances in Electrical and Electronic Engineering, 2004
A lot of measurements of the attenuation of partial discharge pulses on the model of winding was realized in the HighVoltage Laboratory of the Czech Technical University in Prague.
Karel Zalis
doaj  

Maintenance of Arc Occurrence at the End of the Stator Slot in a High-Voltage Motor

Machines
This study investigates the critical issue of arc-induced partial discharge in high-voltage motor stator windings and proposes a cost-effective, targeted maintenance approach to mitigate these effects.
Hoyeol Yoon, Youngchul Bae
doaj   +1 more source

Time domain analysis of switching transient fields in high voltage substations [PDF]

, 2009
Switching operations of circuit breakers and disconnect switches generate transient currents propagating along the substation busbars. At the moment of switching, the busbars temporarily acts as antennae radiating transient electromagnetic fields within ...
Judd, M.D., Musa, B.U., Siew, W.H.
core  

Fractal-based autonomous partial discharge pattern recognition method for MV motors [PDF]

, 2018
On-line partial discharge (PD) monitoring is being increasingly adopted to improve the asset management and maintenance of medium-voltage (MV) motors. This study presents a novel method for autonomous analysis and classification of motor PD patterns in ...
Cacciari M., Danikas M., Jian L., Keller J.M., Kheirmand A., Kreuger F.F.H., Krivda A., Li S., Mandelbrot B., Salama M., Song X., Stone G., Xiaosheng P., Xiaoxing Z., Xiaoxing Z., Zhou C.   +15 more
core   +2 more sources

Interaction of HS1BP3 with cortactin modulates TKS5 localisation, cell secretion and cancer malignancy

Molecular Oncology, EarlyView.
Here, we demonstrate that HS1BP3 interacts with Cortactin through a proline‐rich region (PRR3.1) and show that this interaction, and HS1BP3 itself, promote cancer cell proliferation and invasion. Inhibition of this interaction leads to build‐up of TKS5 in multivesicular endosomes and altered secretion of CD63 and CD9, providing an explanation for the ...
Arja Arnesen Løchen, Kristiane Søreng, Chiara Veroni, Laura Trachsel‐Moncho, Nagham Asp, Robin Gaupset, Lars Gustav Lyckander, Helene Knævelsrud, Lars Eftang, Anne Simonsen   +9 more
wiley   +1 more source

Partial discharge behaviour analysis of silicon nitride ceramics

Power Electronic Devices and Components
Silicon nitride ceramic, one of the most promising power electronics carrier board materials, is examined non-destructively by means of partial discharge measurement.
Johannes Drechsel, Henry Barth, Lars Rebenklau   +2 more
doaj   +1 more source

An Investigation of Leakage Current and Partial Discharge For Various Overhead Insulators

Tikrit Journal of Engineering Sciences, 2009
High voltage insulators used in various overhead forms are exposed to leakage current and partial discharge. This work deals with different structure forms of insulator, such as (pin post, clamp top and tie top). These structures are applied in different
Arkan A. Hussein, Thiear M. Kalif, Sabah S. Salah   +2 more
doaj   +1 more source