Results 31 to 40 of about 6,364 (263)

Composite Aerogel for Heat Insulation

Chemical Engineering Transactions, 2020
Silica aerogels are often brittle and MTMS is rather expensive. Therefore, it is necessary to strengthen MTMS silica aerogels and lower their cost. In this research, hydrophobic composite monolithic methyltrimethoxysilane (MTMS) based aerogels were investigated.
Cao Oanh T. H., Thibthong Pha P., Thai Quoc Ba, Tran Tuan D., Huynh Ha K. P., Nguyen Son T.   +5 more
openaire   +2 more sources

Comprehensive simulation of snow crystal deposition and electric field characteristics of composite sheath improved porcelain cantilever insulator in a wind and snow environment

Journal of Measurement Science and Instrumentation, 2022
The installed porcelain insulators on existing railway lines in China are prone to "snow flash" in winter. In order to prevent the occurrence of "snow flash" and improve the reliability of the insulators, a composite-porcelain insulator is designed.
SHENG Wangqun, LI Gang, LI Yanzhe, LI Baoxue, ZHAO Shanpeng   +4 more
doaj  

Optimization of the structure of insulating composite materials

Tehnički glasnik, 2019
The article deals with the interdependent relationship between the properties of a structure and the properties of a material, which sets the task of reducing them, even they are indistinguishable, to a certain integrity. The object of research and analysis in the article is a building structure, which is seen as an open self-organized complex ...
Kos, Zeljko, Vyrovoi, Valerii, Sukhanov, Volodymyr, Zavoloka, Mykhailo, Gokhman, Aleksandr, Grynyova, Iryna   +5 more
openaire   +4 more sources

Modeling of Dry Band Formation and Arcing Processes on the Polluted Composite Insulator Surface

Energies, 2019
This paper modeled the dry band formation and arcing processes on the composite insulator surface to investigate the mechanism of dry band arcing and optimize the insulator geometry.
Jiahong He, Kang He, Bingtuan Gao
doaj   +1 more source

Study on material and mechanical characteristics of silicone rubber shed of field-aged 110 kV composite insulators

Scientific Reports, 2023
Composite insulators have excellent performance and are more and more widely used in power grid. The performance of composite insulators with different service duration will decline in varying degrees, which could pose a threat to the safe operation of ...
Lin Mu, Bo Wang, Jinpeng Hao, Ziyi Fang, Yu Wang   +4 more
doaj   +1 more source

Composite Insulator Defect Identification Method Based on Acoustic–Electric Feature Fusion and MMSAE Network

Energies, 2023
Aiming to solve the partial discharge problem caused by defects in composite insulators, most existing live detection methods are limited by the subjectivity of human judgment, the difficulty of effective quantification, and the use of a single detection
Bizhen Zhang, Shengwen Shu, Cheng Chen, Xiaojie Wang, Jun Xu, Chaoying Fang   +5 more
doaj   +1 more source

A finite element with statistical analysis study to investigate the electrical performance of composite insulators under water droplet impact. [PDF]

Sci Rep
Composite insulators demonstrate superior electrical performance in contrast to standard insulators. Nevertheless, the deterioration of composite insulator and the challenges in identifying defects are the primary drawbacks of these insulators.
Ouchen L, Belhouchet K, Bayadi A, Zemmit A, Idir A, Awoke YA, Ali E, Ghoneim SSM, Abou Sharaf AB.   +8 more
europepmc   +2 more sources

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

Molecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson, Lyanne Delgado‐Coka, Natalia Marchenko, Luisa F. Escobar‐Hoyos, Kenneth R. Shroyer, Alisa Yurovsky, Trey Ideker, Gábor Balázsi, Thomas MacCarthy, Scott Powers   +9 more
wiley   +1 more source

Fiber Bragg grating monitors for thermal and stress of the composite insulators in transmission lines

Global Energy Interconnection, 2018
Running composite insulators are prone to failure due to their harsh surrounding work environment, which directly affects the safe operation of transmission lines.
Heming Deng, Wei Cai, You Song, Jinsong Liu, Christopher Redman, Qiandong Zhuang   +5 more
doaj   +1 more source

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

FEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn, Barbara Seroka, Ryszard Lazny, Zenon Lotowski, Thore Rohwerder   +4 more
wiley   +1 more source