Results 61 to 70 of about 3,272,174 (382)

Some Factors Effecting on the Dielectric Strength for (PVC- Kaolin) Composites [PDF]

Engineering and Technology Journal, 2011
This research includes the effect of kaolin additions to the polymer matrix (PVC) and study some factors affecting to dielectric strength. The kaolin powder was added as percentage by weight (1,2,3 and 4%) to PVC, and the specimens formed by hot pressing
doaj   +1 more source

Assessment of accelerated aging for thermally upgraded transformer insulation paper by dicyandiamide [PDF]

تحقیقات علوم چوب و کاغذ ایران, 2016
The oil-impregnated dielectric papers are the main components of distribution transformer which govern its service time. Therefore, durability enhancement of this grade of paper will cause to extend transformers life.
Mohammad Azadfallah, Hamid Khodabandehlo, Amirabas Shaygani Akmal   +2 more
doaj   +1 more source

Optimal energy-harvesting cycles for load-driven dielectric generators in plane strain

, 2014
The performances of energy harvesting generators based on dielectric elastomers are investigated. The configuration is of a thin dielectric film coated by stretchable electrodes at both sides.
Bortot, E., deBotton, G., Gei, M., Springhetti, R.   +3 more
core   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

A Comparative Study of Physicochemical, Dielectric and Thermal Properties of Pressboard Insulation Impregnated with Natural Ester and Mineral Oil [PDF]

, 2011
Natural ester is considered to be a substitute of mineral oil in the future. To apply natural ester in large transformers safely, natural ester impregnated solid insulation should be proved to have comparable dielectric strength and thermal stability to ...
Chen, George, Hao, Jian, Liao, Ruijin, Ma, Zhiqin, Yang, Lijun   +4 more
core   +1 more source

Comparative Wear and Friction Analysis of Sliding Surface Materials for Hydrostatic Bearing under Oil Supply Failure Conditions

Advanced Engineering Materials, EarlyView.
Hydrostatic bearings excel in high‐precision applications, but their performance hinges on a continuous external supply. This study evaluates various material combinations for sliding surfaces to mitigate damage during supply failures or misalignment and to discover the most effective materials identified for enhancing the reliability and efficiency of
Michal Michalec, Lukáš Daněk, Jan Foltýn, Petr Svoboda, Carsten Gachot, Martin Hartl, Ivan Křupka   +6 more
wiley   +1 more source

Giant dielectric tunability in ferroelectric ceramics with ultralow loss by ion substitution design

Nature Communications
Due to their responsiveness to modulation by external direct current fields, dielectric tunable materials are extensively utilized in integrated components, such as ferroelectric phase shifters. Barium strontium titanate ceramics have been considered the
Ruitao Li, Diming Xu, Chao Du, Qianqian Ma, Feng Zhang, Xu Liang, Dawei Wang, Zhongqi Shi, Wenfeng Liu, Di Zhou   +9 more
doaj   +1 more source

Implications of Nonlinear Material Parameters on the Dielectric Loss under Harmonic Distorted Voltages

Energies, 2021
The increasing number of power electronic devices in electrical grids may lead to harmonic distorted voltages, which are considered to be possible causes of component failures. In this study, the dielectric losses of epoxy polymer and functionally filled
Thomas Linde, Jun Ting Loh, Stefan Kornhuber, Karsten Backhaus, Stephan Schlegel, Steffen Großmann   +5 more
doaj   +1 more source

Effect of dipolar moments in domain sizes of lipid bilayers and monolayers

, 2006
Lipid domains are found in systems such as multi-component bilayer membranes and single component monolayers at the air-water interface. It was shown by Andelman et al. (Comptes Rendus 301, 675 (1985)) and McConnell et al. (Phys. Chem.
A. Travesset, Alberts B., Brockman H., Israelachvili J. N., Landau L., Safran S., Stevens M. J.   +6 more
core   +1 more source

Static and Dynamic Behavior of Novel Y‐Shaped Sandwich Beams Subjected to Compressive Loadings: Integration of Supervised Learning and Experimentation

Advanced Engineering Materials, EarlyView.
In this study, the mechanical response of Y‐shaped core sandwich beams under compressive loading is investigated, using deep feed‐forward neural networks (DFNNs) for predictive modeling. The DFNN model accurately captures stress–strain behavior, influenced by design parameters and loading rates.
Ali Khalvandi, Saeed Kamarian, Mahdi Bodaghi, Saeed Saber‐Samandari, Jung‐il Song   +4 more
wiley   +1 more source