Results 41 to 50 of about 393,885 (195)

A synthetic high-voltage power line insulator images dataset

Data in Brief
High-voltage power line insulators are crucial for safe and efficient electricity transmission. However, real-world image limitations, particularly regarding dirty insulator strings, delay the development of robust algorithms for insulator inspection ...
Reinaldo A.C. Bianchi, Hericles F. Ferraz, Rogério S. Gonçalves, Breno Moura, Daniel E.T. Sudbrack, Antoniele Merini, Maria de Lourdes G. Machado, Rodrigo Pires, Rafael Z. Homma   +8 more
doaj   +1 more source

Feature extraction and classification of surface discharges on an ice-covered insulator string during AC flashover using gray-level co-occurrence matrix

Scientific Reports, 2021
This study focuses on the feature extraction and classification of surface discharges of ice-covered insulator strings during process of alternating current flashover.
Yong Liu, Qiran Li, Boxue Du, Masoud Farzaneh   +3 more
doaj   +1 more source

Multi-material additive manufacturing of conductor-insulator compounds for battery cell cap fabrication

Materials & Design
This study aims to simplify and accelerate the production of battery cell housings through additive manufacturing, emphasizing reduced tooling requirements and flexible design possibilities—especially advantageous for early-stage prototyping.
Thomas Bareth, Daniel Eder, Maja Lehmann, Georg Schlick, Christian Seidel   +4 more
doaj   +1 more source

Optimization of mercuric iodide platelets growth by the polymer controlled vapor transport method

Materials Research, 1999
Mercuric iodide crystals in their platelet habit were grown by the polymer controlled vapor transport method. Mercuric iodide 99% in purity was sublimated at temperatures about 122 - 126 °C and vacuum conditions (10-5 mmHg), after selecting an ...
L. Fornaro, L. Mussio, M. Köncke, L. Luchini, E. Saucedo, A. Rivoir, E. Quagliata   +6 more
doaj   +1 more source

Residual stresses in ceramic metal assembly after brazing process [PDF]

, 2006
The framework of this study is the thermo-mechanical analysis of the brazing process of ceramic metal assemblies. The thermal expansion gradient between ceramic and metallic materials leads to the development of residual stresses during the cooling phase
B. Lorrain, V. Cazajus, Karama, Moussa, Welemane, Hélène, H. Welemane, Moussa Karama, Lorrain, Bernard, Cazajus, Vincent   +7 more
core   +1 more source

Nano-Silica Coatings and Their Effect on the Hydrophobicity and Electrical Properties of Power Line Porcelain Insulators [PDF]

Iranian Journal of Materials Science and Engineering
The power line insulators are permanently exposed to various environmental pollutants such as dust and fine particles. This may lead to flashovers and therefore widespread power blackouts and heavy economic damage.
Mahnaz Dashti, Saeid Baghshahi, Arman Sedghi, Hoda Nourmohammadi   +3 more
doaj  

Artificial neural network analysis for classification of defected high voltage ceramic insulators

Scientific Reports
Partial discharge (PD) could lead to the formation of small arcs or sparks within the insulating material, which can cause damage and degradation to the insulator over time.
Ahmed S. Haiba, A. Eliwa Gad
doaj   +1 more source

DC conductivity of silicon nitride based carbon-ceramic composites [PDF]

Processing and Application of Ceramics, 2007
The silicon nitride ceramics are usually known as strongly refractory and enduring materials and have typical electrically insulating properties. If the reinforcing phase of ceramic composite (that is mainly put in the material to improve mechanical ...
B. Fényi, N. Hegman, F. Wéber, P. Arató, Cs. Balázsi   +4 more
doaj  

Detection of Glaze Icing Load and Temperature of Composite Insulators Using Fiber Bragg Grating

Sensors, 2019
Conventional methods for the online monitoring of icing conditions of composite insulators suffer from difficulties. To solve this issue, a novel method is first proposed to detect glaze icing load via embedding three optical fibers with fiber Bragg ...
Jie Wei, Yanpeng Hao, Yuan Fu, Lin Yang, Jiulin Gan, Zhongmin Yang   +5 more
doaj   +1 more source

Effects of spin symmetry breaking in topological insulators [PDF]

, 2015
Topological insulators are one of the most thoroughly investigated systems in condensed matter physics over the last years. In these systems, a prominent role is inevitably taken by time-reversal symmetry, which leads to Kramers theorem and symmetry ...
Orth, Christoph
core   +1 more source