Results 31 to 40 of about 666,451 (346)

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

Improved dielectric properties of PVDF nanocomposites with core–shell structured BaTiO(3)@polyurethane nanoparticles

IET Nanodielectrics, 2020
Polymer nanocomposites with improved dielectric permittivity and high breakdown strength are extremely desirable for the flexible electronic devices and power systems.
Ming-Sheng Zheng, Chong Zhang, Yu Yang, Zhao-Liang Xing, Xin Chen, Shao-Long Zhong, Zhi-Min Dang   +6 more
doaj   +1 more source

Space charge and AC electric breakdown strength in polyethylene [PDF]

2015 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), 2015
Breakdown strength is an essential feature of dielectrics. Theoretically, the intrinsic strength is independent of the configuration of the dielectrics or electrodes and the category of applied electric fields. However, the measured breakdown strengths of a same material under direct high voltage (HVDC) and alternative high voltage (HVAC) are ...
Zhou, Churui, Chen, George
openaire   +2 more sources

The Effect of Antioxidant and Graphite Nanoplatelet on DC Breakdown and Space Charge of Cross-linked Polyethylene

Journal of Harbin University of Science and Technology, 2018
To study the effect of antioxidant and graphite nanoplatelets ( GNPs) on the direct current ( DC) dielectric properties of cross-linked polyethylene ( XLPE ) ,antioxidant /XLPE and GNPs/antioxidant /XLPE composites were prepared by melt blending method ...
ZHANG Cheng-cheng, WANG Jin-hui, JING Zi-ang, YAN Zhi-yu, HAN Bao-zhong   +4 more
doaj   +1 more source

Improved thermal conductivity and AC dielectric breakdown strength of silicone rubber/BN composites

Composites Part C: Open Access, 2020
The present study demonstrates a synergistic effect with the addition of low loading levels of boron nitride filler in silicone rubber that resulted in significant improvement in both ac breakdown strength and thermal conductivity of silicone rubber ...
Maryam Sarkarat, Michael Lanagan, Dipankar Ghosh, Andrew Lottes, Kent Budd, Ramakrishnan Rajagopalan   +5 more
doaj   +1 more source

Electrical properties evaluation of double‐layer nano‐filled oil‐paper composites

IET Science, Measurement & Technology, 2021
Oil‐paper composite is the main insulation system in oil‐filled transformers. In recent years, the use of nanotechnology to improve the electrical and thermal properties of transformer oil has become a field of research interest.
Amr M. Abd‐Elhady, Ahmed A. Abdul‐Aleem, Mohamed A. Izzularab   +2 more
doaj   +1 more source

An investigation of interplay between dissipation mechanisms in heated Fermi systems by means of radiative strength functions [PDF]

, 1998
A simple analytical expression for the gamma-decay strength function is derived with microcanonical ensemble for initial excited states. The approach leads to both a non-zero limit of the strength function for vanishing gamma-ray energy and a partial ...
Alhassid, Alhassid, Ayik, Ayik, Bartholomew, Baumann, Belanova, Bracco, Dietrich, Dover, Eisenberg, Gaardhoje, Kolomietz, Kopecky, Mattiuzzi, Myers, Nishizaki, Plujko, Plujko, Plujko (Plyuiko), Plujko (Plyuiko), Reference Input Parameter Library (RIPL), Snover, V.A. Plujko (Plyuyko), Yannouleas, Yukawa   +25 more
core   +2 more sources

Reduction of Breakdown Pressure by Filter Cake Removal Using Thermochemical Fluids and Solvents: Experimental and Numerical Studies

Molecules, 2021
The process of well cleanup involves the removal of an impermeable layer of filter cake from the face of the formation. The inefficient removal of the filter cake imposes difficulty on fracturing operations.
Zeeshan Tariq, Murtada Saleh Aljawad, Mohamed Mahmoud, Olalekan Alade, Muhammad Shahzad Kamal, Ayman Al-Nakhli   +5 more
doaj   +1 more source

Increased amino acid turnover and myofibrillar protein breakdown in advanced cancer are associated with muscle weakness and impaired physical function [PDF]

, 2018
Muscle wasting in cancer negatively affects physical function and quality of life. This study investigates amino acid metabolism and the association with muscle mass and function in patients with cancer.In 16 patients with advanced cancer undergoing ...
Deutz, Nicolaas E P, Engelen, Marielle P., Rodriguez, Ramon E., Van der Meij, Barbara S   +3 more
core   +1 more source

Prediction of DC Breakdown Strength for Polymer Nanocomposite Based on Energy Depth of Trap

Energies
Understanding the role of carrier traps in the determination of dielectric breakdown of polymer nanocomposite would yield a novel method for the estimation of breakdown strength of the material.
Xiaohu Qi, Jian Guan, Xuri Xu, Zhen Zhang, Chuanyun Zhu, Chenyi Guo, Qifeng Shang, Yu Gao   +7 more
doaj   +1 more source