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:
A new compact 85 x 55 x 1.6 mm3 multiband reconfigurable 4x1 MIMO antenna is proposed for cognitive radio applications. The proposed structure consists of four elements reconfigurable communicating antenna and ultrawide band UWB sensing antenna in the same substrate. The frequency reconfigurability range of the communicating antenna from 7.5 to 15.5 GHz, while the UWB sensing antenna operates with a band from 2.7-23.2 GHz that can cover the entire UWB band from 3.1 to 10.6 GHz. The proposed antenna is optimized using Genetic Algorithm to operate on four resonant frequencies of 8.1 GHz, 12 GHz, 13.95 GHz, and 15 GHz that are used to cover various wireless applications such as WiMAX, international telecommunication union (ITU), satellite, Radar, and broadband applications. The frequency reconfigurability is achieved using only single RF switch (PIN diode) for frequency tuning. The results introduced maximum gain of 7.7 dBi, return loss ≤ -20 dB, Envelope Correlation Coefficient ECC ≤ 0.015, and Isolation ≤ -15 dB. The proposed antenna has been designed and optimized using CST software and it has been fabricated and presents good agreement between the simulated and measured results
This paper reports theoretical and experimental works of effect the shearing angles (0o , 2o , 4o , 8o )on the dynamic cutting forces in punch – die system. Three different cutting velocities (1.4, 4.2, 9.8 mm/sec) are used analytically to show the effects of dynamic strain and dynamic forces with cutting time. The visual Fortran and statistic analytical program have been implemented in this study for different velocities of cutting tools. Experimentally, three punch velocities which have same theoretical values are used measuring the dynamic shear forces throughout stroke line. Some interesting findings regarding the relations between the dynamic cutting force and shearing angle are summarized in these papers. There is convergence between the theoretical and experimental results at shear angle equal zero. When shear angle of punch face is high value may be due to a wear in punch edge
