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Mineral oil is a petroleum-based oil which is nonrenewable and is running out in the future. It is also non-biodegradable, thus, it can be harmful to the environment when there is oil spillage. Therefore, this work is conducted with an intention to reduce the usage of petroleum-based oil by mixing it with natural ester oil. This is achieved by mixing the mineral oil (MO) and palm fatty acid ester...
Silicone Rubber (SIR) are steadily gaining acceptance in the high voltage insulation application due to a greater insulation properties and light weight attribute, which are suitable in substituting the conventional glass and ceramic insulator. There are still large research efforts conducted all around the world in order to improve the insulating behavior and sustainability of SIR. However, the investigation...
In high voltage transformer application, mineral oil is typically used as insulation liquids because of its excellence in dielectric strength and cooling medium. However, despite the benefit of mineral oils, these oils are derived from petroleum, which is a non-renewable and non-sustainable source. In this study, palm fatty acids ester (PFAE) is used as insulation oil to investigate the performance...
Nowadays, nanoscale materials are increasingly popular in academic and industrial research. It is expected that the combination of nanoscale materials with other material can contribute more benefits. The use of nanoscale materials often require their dispersion in variety of liquids, to enable them to become part of the liquid product, also known as nanofluids. For example, one of the applications...
Stress is a mental condition that can effects the brain electrical activity to be different from the normal state. This brain cognitive change can be measured using EEG. The objective of this paper is to classify stress subjects based on EEG signal using SVM. The data which are used to represent stress subjects were taken from the residents of Pusat Darul Wardah; a shelter centre for troubled women...
In modern power networks, the issue of power quality (PQ) is becoming very important because of the increasing of load which sensitive to current disturbances. This is mainly due to the increasing use of non-linear power electronic devices draws non-sinusoidal current and creating a current distortion. As a result there is increasing need for PQ to be monitored to establish the type, sources and locations...
This study reported on a newly synthesized Hg (II)-thiosemicarbazone complex. The complex was characterized using uv-visible spectrophotometry. The mercury (II) - 4-(Dimethylamino)benzaldehyde 4-ethylthiosemicarbazone (DMABET) in methanol had a maximum absorbance (λmax) at 374 nm, whereas the λmax for DMABET in methanol was 356 nm. At optimum pH i.e. pH 4 λmax had shifted to 381 nm. The molar stoichiometry...
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