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:
Tuna capture fisheries have a very important value and meaning for the socio-economic life of coastal communities, either directly or indirectly. On the other hand, the catch of tuna has decreased from a biological aspect based on the weight and length of the fish caught as well as the amount of production and the value of CpUE (Cath per Unit Effort). The research objective was to analyze the sustainability status of tuna fisheries. This study was a survey of 90 respondents in two tuna location centers in Prigi and Malang districts. The method used the Multi-Dimensional Scaling (MDS) analysis using the software Rapfish (Rapid Appraisal for Fisheries). The results showed that the sustainability status seen from 5 dimensions, (1) Biology, (2) Economic, (3) Technology, (4) Social, (5) Institutional, showed that the level of sustainability of tuna fishing from the technological and economic dimensions was Quite Sustainable. For the Biological, Social and Institutional dimensions it shows a low/ Less Sustainable. In general, it can be said that the level of sustainability of tuna fishing in the southern waters of East Java is low.
Electronic gadgets nowadays have become an essential part of daily human life. Electronic devices are increasing in popularity because of the convenience to use, and it can provide many kinds of information with a single touch from the web. However, it needs electrical energy source operation. With the increasing demand for electrical power, all countries face some technical issues with the consistency of current power sources and tend to fail from time to time. Several alternative power systems are proposed; the piezoelectric power system is the best choice since it is a low cost and one-time investment. This paper explores how to create an electrical source by using a piezoelectric transducer. Piezoelectric transducers (PZT) are particular types of materials that can convert mechanical energy into electrical energy. For this specific, this project has proposed the concept of piezoelectric power generation to use shoe pressure. Whenever someone walks by wearing this specialized shoe, the pressure is exerted on the shoe sole due to weight and muscular tension. The piezoelectric generator embedded into the shoe's sole converted the mechanical energy into electrical energy. A rechargeable battery stored management system will keep the power as electrical energy for further uses. The proposed approach has been designed and implemented the shoe sole, and the result shows good compliance with theory and design. These results will help the other researchers who are working in this field.