Results 21 to 30 of about 10,948 (245)

Development of controlled micro-discharge at the atmospheric pressure [PDF]

Welding in the World, 2013
The generation method of sub-millimeter sized plasma was developed through controlling the electrical discharge in the range from glow to arc discharge with use of the experimental torch device and the newly designed high-voltage power source. The electrical discharge was established between a cathode of the electrolytic polished tungsten electrode and
Park, Mingon, Hirata, Yoshinori, Urabe, Tatsumasa   +2 more
openaire   +1 more source

Simulation and Characterization of Micro-Discharge Phenomena Induced by Glitch Micro-Defects on an Insulated Pull Rod Surface

Energies
The reliability of GIS (gas-insulated switchgear) circuit breakers significantly depends on the condition of the insulated pull rods, with micro-defects on their surface posing a potential risk for micro-discharges and breakdown incidents. Experimentally
Shu Niu, Shuai Li, Jizhong Liang, Guodong Li, Fan Hu, Hai Zhang, Yujie Zhu, Xianhao Fan, Chuanyang Li   +8 more
doaj   +1 more source

Development of anti-corrosive coating on AZ31 Mg alloy subjected to plasma electrolytic oxidation at sub-zero temperature

Journal of Magnesium and Alloys, 2022
Plasma electrolytic oxidation (PEO) is a promising surface treatment to generate adherent and thick anti-corrosive coating on light-weight metals (Al, Mg, Ti, etc.) using an eco-friendly alkaline electrolyte.
S. Fatimah, M.P. Kamil, D.I. Han, W. Al-Zoubi, Y.G. Ko   +4 more
doaj   +1 more source

High-pressure micro-discharges in etching and deposition applications [PDF]

Journal of Physics D: Applied Physics, 2003
High-pressure micro-discharges are promising sources of light, ions, and radicals and offer some advantages in materials processing applications as compared to other more conventional discharges. We review here results from etching experiments using stencil masks where the discharge is formed only in the pattern cutout.
R Mohan Sankaran, K P Giapis
openaire   +1 more source

RF impedance measurements of DC atmospheric micro-discharges

, 2023
The available diagnostics for atmospheric micro-plasmas remain limited and relatively complex to implement; so we present a radio-frequency technique for diagnosing a key parameter here. The technique allows one to estimate the dependencies of the electron density by measuring the RF-impedance of the micro-plasma and analyzing it with an appropriate ...
DUFOUR, Thierry, Overzet, Lawrence J., Goeckner, Matthew, dussart, rémi, Lefaucheux, Philippe   +4 more
openaire   +1 more source

Analysis of yellowing phenomenon caused by electrical and thermal degradation in the interface of cross‐linked polyethylene cable joints

IET Science, Measurement & Technology, 2022
Yellowing phenomena have been frequently observed at the interface between the cross‐linked polyethylene (XLPE) insulation and the semiconducting rubber in the joint when a failure occurs at the end bushing in gas (EBG) of the XLPE transmission cable ...
Sungho Yoon, Hyeongwook Son, Hyeongsang Ko, Jeongtae Kim   +3 more
doaj   +1 more source

The Impact of a Warming Micro‐Climate on Muooni  Farmers of Kenya

Agriculture, 2017
Rainfed agriculture has become highly vulnerable to the depleting water resources in most arid and semi‐arid tropics (ASATs) under the effect of climate change.
Cush Ngonzo Luwesi, Joy Apiyo Obando, Chris Allan Shisanya   +2 more
doaj   +1 more source

Simulation on the Motion Characteristics and Discharge Mechanism of Abrasive Particles in Conductive Slip Rings

IEEE Access
Disk-type conductive slip rings are widely used in spacecraft solar array drive mechanisms to transfer power and signals. However, arc discharges which were triggered by metal abrasive particles pose serious risks to system reliability.
Liang Chen, Xiaolong Huang, Qiang Zhang, Yanmin Liu, Qinghua Zhou, Shenli Jia   +5 more
doaj   +1 more source

Use of Symptomatic Drug Treatment for Fatigue in Multiple Sclerosis and Patterns of Work Loss

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To describe the use of central stimulants and amantadine for fatigue in MS and evaluate a potential association with reduced work loss in people with MS. Methods We conducted a nationwide, matched, register‐based cohort study in Sweden (2006 to 2023) using national registers with prospective data collection.
Simon Englund, Johan Reutfors, Thomas Frisell, Fredrik Piehl   +3 more
wiley   +1 more source

Developmental and Epileptic Encephalopathy due to Biallelic Pathogenic Variants in PIGM

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective PIGM encodes a critical enzyme in the glycosylphosphatidylinositol (GPI)‐anchor biosynthesis pathway. While promoter‐region mutations in PIGM have been associated with a relatively mild phenotype characterized by portal vein thrombosis and absence seizures, recent evidence suggests that coding‐region mutations result in a more severe
Júlia Sala‐Coromina, Anna Marcé‐Grau, Barbara Masotto, Marta Codina, Lamia BenJemaa, Yasmina Elaribi, Mónica Martinez‐Gallo, Roger Colobran, Angel Sanchez‐Montañez, Irene Valenzuela, Yoshiko Murakami, Alfons Macaya   +11 more
wiley   +1 more source