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:
Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery
Interventional Pulmonology
Interventional Pulmonology (middletown, de.)
Spiral casings are a vital element in reaction turbines for hydraulic energy generation. This work analyses the behavior of many variables of spiral chambers in five families of models: Logarithmic, Fermat, Galileo, Archimedes, and Polynomial spirals. It also studies seven inlet diameters of the chamber. Each prototype was evaluated with standardized boundary conditions. Virtual models of chamber spirals were built from mathematical equations. The behavior of the fluid inside the models was evaluated using computational fluid dynamics. The simulations were performed in the module CFX of ANSYS®19.1, and a velocity profile of the dynamic behavior of the fluid inside each spiral chamber was obtained. Absolute, tangential and radial velocities of 50, 75 and 100 % of the flow area of the spiral chamber outlets were evaluated. Using a statistic study of velocity values at the outlet of the chamber calculated through CFD, the maximum average velocity and the minimum standard deviation were established. Additionally, optimal criteria for choosing the most appropriate chamber of each type were estimated. These models indicate that Archimedes spiral casings with inlet diameters of 100 and 150 mm present the best fluid-dynamic behavior
Research aimed to identify the characteristics of the owner of the handwriting, so that handwriting can be recognized and able to prevent forgery of handwriting through two methods, namely the inner product and cosine. The increased use of handwriting as a means for authentication and authorization from accessing an account or specific media, it takes a technological advancement in terms of security handwriting. Both method will be compared to the level of accuracy in recognizing the characteristic and the owner of the handwriting. Steps being taken to 100 consists of digitized handwritten documents, pre-processing such as color conversion and thresholding, and gridding stage, feature extraction, and pattern recognition through the inner product and cosine. From the test results which consists of 60 training data (in database) and 40 test data through methods cosine, 9 data misidentified, 10 unknown data, and 21 data has correctly identified the owner of the handwriting, so accuracy is obtained only by 52.5%.While testing with the same data through inner methods, produced 27 recognized correctly managed data, 13 data is not in accordance with the owner's handwriting, so accuracy is obtained from the inner product method amounted to 67.5%. Overall it can be concluded from this study, the use of methods of cosines and inner product in identifying the owner of the handwriting can produce fairly good accuracy, where accuracy inner product value is still higher than the cosine
