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 reveals the different characteristics of stress distribution in center wing box, which is a primary structure of airplanes, using rivet joint and adhesive joint. The wing box model developed by Indonesian Aircraft Industry was simulated by commercial finite element analysis software. Bending load transferred from another set of wing structures was imposed on the model. The characteristics of Von Mises stress, maximum principal stress, and maximum shear stress distributions were investigated in the simulation. Those stress distributions in the wing box with different sets of joint between skin and stiffener, which are the rivet and the adhesion, were then compared under identical bending load conditions. The simulation results showed there is almost no stress concentration in the wing box skins in case of the adhesive joint is used. Furthermore, utilization of the adhesive joint decreases Von Mises stress values in the top skin up to 18%, bottom skin up to 34%, Z-type stiffeners up to 27%, and T-type stiffener up to 19% which can significantly reduce potential damage and failure of the wing box structures. This result shows the superiority of the adhesive to rivet joint in the subsystem component level, which can be a guideline in designing airplane joints and finding their appropriate adhesive materials
Nowadays, the use of smartphones is very widespread due to the various functions provided. Unfortunately, the evolution of smartphone functionality and adoption makes such devices as a tempting target for attackers. The purpose of this study is to investigate the motivational factors of security choices and control on smartphones among undergraduates in Malaysia. This paper adopted a quantitative methodology where data from a survey (N=200) of smartphone users is analyzed. The results of this study conclude that perceived vulnerability, perceived severity, self-efficacy, response efficacy and reward is significantly associates with security choices and control on smartphones. The results of these findings indicate that further research needs to be done to explore other factors that may be associate with security choices and control on smartphones
