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:
Security system is implemented to conceal sensitive text-information on personal computer (PC). It offers using normal multimedia image-based steganography to substitute the pixel least significant bits with text to be hidden. The paper includes various testing setups for possible increment in the ambiguity and capacity within steganography adopting choices of 1, 2, 3 and 4 least significant bits stego-systems. The design novelty is based on offering full security data for the user for selecting suitable cover-image from the PC in terms of the security priority. This method permits the PC user to examine multi-bits steganography on various pictures for concealing similar sensitive texts. Then, it becomes possible for the user to prefer one image for using as cover image in terms of his/her choice understanding the desired capacity and security importance. The study proofs the information dependence and its security property by testing 24 fixed sizes PC pictures indicating remarkable outcomes
Using natural fibres like Sansevieria trifasciata can be an option to reduce energy consumption compared to synthetic fibre that requires a high consumption of energy since it contributes to the mechanical properties of composites. Therefore, an observation was done to know the effect of alkaline treatment with 3% NaOH on Sansevieria trifasciata fibre obtained through mechanical retting method, in which the composites consist of Sansevieria trifasciata with vinyl ester matrix. In this study, the modified fibre orientations were the random and the unidirectional ones, while the volume fraction used was 0%, 5%, 10%, and 15%. Several tests were carried out namely tensile tests, impact tests, density tests and observations through scanning electron microscopy (SEM). The results of this study found that the value of tensile strength could increase up to 31.7%, the stiffness could increase up to 13% and the toughness could increase 49.6% with the addition of alkaline treatment on the fibre. There was also an increase in mechanical properties with the addition of volume friction, in which the largest increase occurred in the volume fraction of 15%
Public Guest Service is a place of lodging that is provided for university students. Public Guest Service in this study is located in Indonesia in the city of Jakarta which has hundreds of lodging capacity and has public facilities that are quite varied. In the current management process, all data collection processes for residents, repairs, maintenance still use manual data collection as well as improper data storage. In an effort to improve service to residents and operational management, the need for business process development or the development of activities in Public Service Guest. Depend on the need for increasing occupant services and reminding of effectiveness in running Public Service Guest operational management, the solution is to align business processes with the use of information technology or information systems. This study uses TOGAF ADM in the Business Architecture section. This research generates a recommendation in the form of planning of a new business flow and maximizing the use of information systems and information technology in maximizing the Public Service Guest business process
There are 3 main types of wind turbines, their difference lies mainly in their type of rotor, the direction of their axis, and the shape of their blades. For the vertical axis, wind turbines are the Darrieus, Giromill, and Savonius. In the present study, a simulation of a variant of the savonius rotor is made by adapting an aerodynamic profile on its blades based on the design characteristics of a NACA 6506 profile. For the execution of the same, there will be a solid modeling software, in which will generate the geometry and physical characteristics of the selected design to be used in the savonius rotor variant, after this and with the help of Computational Fluid Dynamics (CFD) simulation, the fluid-dynamic behavior is evaluated, and the coefficient of performance of the same. Results were obtained from the comparison between the behavior of the designed rotor concerning its conventional savonius shape, where its generated power, power coefficient, and reached speeds are shown, analyzing that the adaptation of an aerodynamic profile improves the behavior of the rotor as it increases wind speed
Due to the huge number of devices that will connected in the near future within the Internet environment, this will lead to significant momentum in the data exchange over the Internet, which will reduce the speed of data transfer and reduce the speed of data processing reaching inefficient work, that leading to inability to meet the requirements of work. The future is Internet of Things (IoT), ability to incorporate intelligence devices to make use of contextual information, collecting information’s with the regards of a given situation to select appropriate path with the huge numbers of device and applications, the key idea is that rather than sending acknowledge across the network, the problem is high energy consumption, increase time delay and may cause an unbalanced load in a network. Therefore, we propose an efficient protocol that addresses these cases in order to increase the efficiency of the work to an acceptable level. In this paper, the design of the protocol based on distribute Learning, information’s of each nodes (things), these factors are exchanged among neighbors. Each node allows sharing their information’s with rounding neighbors to achieve additional information about the adapting routing in the network and each node such as a system that can use local information gathered from neighbors. This proposal based on three basic principles: Energy consumption, time delay and load balancing
