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:
Non-singular matrices have a key role to play when determining the rank of a matrix. The rank of a matrix is useful when deducing the nature of solutions to a system of linear equations. In this paper I report on a qualitative case study which explored possible mathematical gaps that created barrier/s when engineering students (n=101) worked with the rank of matrices to determine the nature of the solutions of a system of linear equations. These engineering students were provided with two tasks and their written responses were used to detect possible barriers in their understanding of the rank concept. The study was carried out at a University of Technology in South Africa. The data, which was collected from written responses of students to two tasks, were analysed using APOS theory. Interviews followed these analyses to verify the APOS levels they were placed at. Findings emanating from the data analysis indicated that we: 1) can correctly place the APO level of conception of an individual if the individual provides a completely mathematically correct solution, 2) cannot be certain at which mental construction an individual is performing at when partially mathematically correct responses are provided and 3) individuals providing completely incorrect solutions require further exploration.
Admixed alloy powder composed of low copper and metallic glass silver copper eutectic triturated with gallium or gallium tin alloy. The restorative is reinforced with ceramic powder of ZrO2 in both nano and micron sized to improve the mechanical properties and manipulation of the filling. The specimens were prepared according to ADA specification No. 1. Reduction of the liquid reduces the expansion and the addition of the ZrO2 at micronized particles stabilize the dimensional change up to 0.138 of 1% addition at 0.4g of GaSn while the nano ZrO2 enhance the manipulation of the filling paste. Compressive strength enhanced by 19% at 2 percent compared to that without addition at 1h, for 24h the best enhancement for 1 percent nano ZrO2 was 81%. The best creep resistance is at 3 percent micronized ZrO2 by 74% compared to that without addition and 76 % as compared to dental amalgam
