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Power transformers monitoring based on electrical measurements: State of the art
(Institution of Engineering and Technology, 2018-07-10)
Faults diagnosis in power transformers has been traditionally based on the insulation resistance measurement, polarisation index, analysis of dissolved gasses in oil, dissipation/power factor measurement, and partial ...
Measurement and interpretation of electrical signals in transient electrical discharges
(IOP Publishing, 2021)
Evolution of soft magnetic, mechanical and electrical properties measured simultaneously during annealing of rapidly solidified alloys
(Elsevier Science, 2019-04-15)
The structure evolution of some soft magnetic metastables alloys are scanned and studied through some room temperature properties changes employing only one sample submitted to successive heat treatments. These are monitored ...
Electric memory effects in styrene-butadiene rubber, containing electric inclusions of highly aromatic oil
(World Scientific, 2018-06)
It was determined that samples of styrene-butadiene rubber (SBR), containing highly aromatic oil, exhibit memory effects giving rise to dynamic elastic modulus, damping and internal stresses degree which can be tailored ...
Electric susceptibility of sodium-doped water clusters by beam deflection
(American Chemical Society, 2009-03)
The electric susceptibility of neutral sodium-doped water clusters Na(H2ON, N = 6-33, was determined by beam electric deflection. The clusters behave as polarizable particles; their intensity profiles exhibit global shifts ...
On state estimation in electric drives
(Pergamon-Elsevier Science Ltd, 2010-03)
This paper deals with state estimation in electric drives. On one hand a nonlinear observer is designed, whereas on the other hand the speed state is estimated by using the dirty derivative from the position measured. The ...
Comparison between electrical and optical properties of Carbon dots, silver nanoparticles and hybrid carbon/silver nanoparticles: Experimental evidence of the interaction of Carbon dots on silver nanoparticles
(Elsevier, 2020-10)
The comparison between electrical and optical properties of AgNPs, Cdots and Ag@Cdots were investigated. The synthesis of the nanoparticles was carried out via the microwave method as a quite simple and environmentally ...
Effect of thickness on structural and electrical properties of Al-doped ZnO films
(Elsevier, 2015-12)
In this work, we have investigated the influence of thickness on structural and electrical properties of Al-doped ZnO films. Transparent conducting oxide films were grown by the spray pyrolysis technique from precursors ...
A multi-objective formulation of improving flexibility in the operation of electric power systems: Application to mitigation measures during the coronavirus pandemic
(Pergamon-Elsevier Science Ltd, 2021-07-15)
The coronavirus pandemic has infected more than 23 million people worldwide by August 2020 along with more than 800,000 deaths. To face this pandemic, a joint effort among different areas has been required. In this context, ...
The limitations of electrical resistance for accurate positioning of shape-memory actuators: The case of well-oriented CuZnAl single-crystals under uniaxial loading
(Elsevier Ltd, 2017-03-05)
The possibility of using the electrical resistance as a feedback signal for precise positioning in the design of compact shape-memory actuators was revised. The analysis was performed on well-oriented CuZnAl single crystalline ...