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:
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
Bioindicators are organisms or biological responses that indicate the entry of certain substances in the environment. Lichen (Moss Crust) is an indicator plant that is sensitive to air pollution. One of methods to determine the condition of pollution in an area is to look at the macroscopic appearance of Lichen (moss crust) attached to trees or rocks in an area. The aim of this research is to investigate the level of air pollution in Sukolilo District, Surabaya, Indonesia using a bioindicator (lichen). A total of 7 villages (Klampis Ngasem, Menur Pumpungan, Nginden Jangkungan, Gebang Putih, Semolowaru, Medokan Semampir, Keputih) in Sukolilo District were selected as sampling points. Two methods are used to determine air quality in Sukolilo District, namely by biomonitoring the presence of Lichen as well as by measuring the size of Lichen found. Data analysis was performed by identifying the results of both methods with the The Hawksworth and Rose Index indicator table to determine air quality. The results showed that there were two types of Lichen identified in Sukolilo District, namely Lichen Crustose and Folilose with an average size of Lichen 4-6 cm. So it can be concluded that air quality based on the presence of Lichen is classified as Poor and air quality based on Lichen's size is classified as moderate. Therefore, it is concluded that the level of air pollution can be measured by using a Lichen bioindicator