Technology Reports of Kansai University (ISSN: 04532198) is a monthly peer-reviewed and open-access international Journal. It was first built in 1959 and officially in 1975 till now by kansai university, japan. The journal covers all sort of engineering topic, mathematics and physics. Technology Reports of Kansai University (TRKU) was closed access journal until 2017. After that TRKU became open access journal. TRKU is a scopus indexed journal and directly run by faculty of engineering, kansai university.
Technology Reports of Kansai University (ISSN: 04532198) is a peer-reviewed journal. The journal covers all sort of engineering topic as well as mathematics and physics. the journal's scopes are
in the following fields but not limited to:
Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery
According to its importance to save life and money, electrical power system networks must be protected to prevent any abnormal condition and to ensure the continuation of electrical power without any interruption to the healthy parts. Transformers are one of the most important parts of the power system and the researchers deal with developing the methods of protecting it to ensure secure operation. Protective relays are the most important part of the protection system. The relay does not prevent the incidence of faults. It can take action only after the fault has occurred. There are many types of relays depending on the strategy of detecting the fault and the part to be protected. In this research, a literature review for power transformer digital protection has been listed to present the development of the protection strategy for this part of the power system.
Activated carbon sourced biomass materials widely applied as the energy storage supercapacitors possess high porosity, large specific surface area, controllable surface morphology as well as low-cost. In addition, chemical activation agents are very significant in the process, which are adopted in the opening of active sites and pore structures of activated carbon. This study is aimed at combining a single-step activating process with the carbonization and activation, using KOH, NaOH, and ZnCl2 as agents in the preparation of carbon from low-cost reeds wastes. Furthermore, the resulting thermal stability, density of the electrodes, surface of morphology, microstructure, specific surface area and pore size distribution were investigated. The results show variation in surface area, where the largest was observed in KOH-activated carbon electrode at 1183.540 m² g-1, alongside high fibers density and low crystallinity properties. This was followed by the treatment with ZnCl2 and NaOH, showing 768.301 m² g-1 and 284.823 m² g-1, respectively. Subsequently, the symmetric supercapacitor cells produced with KOH-activated carbon electrode exhibited a high specific capacitance of 141 F g-1, and maximum energy density of 4.89 Wh kg-1, at the power density of 35.32 W kg-1