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:
Aircraft flight control system tends to use Electromechanical actuators (EMAs), so the condition monitoring of aircraft actuators become more important under varying environmental and operational conditionIn. This paper introduces a new approach to monitoring surface roughness for aircraft actuators. The proposed technique starts with current and vibration signal as fault indicator. Them to extract the useful features discrete wavelet transform (DWT) was implemented. To overcome lamentations related with redundancy features that effect on diagnostic accuracy and time taken for Classification orthogonal Fuzzy neighborhood preserving analysis with QR decomposition (FNPA-QR) which is used first time for electrical motor condition motoring. In real time under variable and constant working. Time Delay Neural Network (TDNN) was presented to classify faults and predict their severity. The results achieved from simulation prove the ability of the present method in successfully diagnosis the various type of faults
These days, developing software is rarely an individual effort, and customarily involves groups of developers working together to produce excellent reliable code. This synergy is due to the variety of technical dependencies that developers must confront while developing software. Technical dependencies are correlations and interactions among artefacts and teams throughout software development. To comprehend the implications of code change and coordination required, the technical dependencies in software engineering projects must be identified. This study synthesizes types of technical dependencies in software engineering projects based on prior research (2000-2019) and provides an understanding of how the identified technical dependencies can impact coordination. We conducted a systematic literature review to identify the types of technical dependencies in software engineering projects. A total of 55 studies published from January 2000 to December 2019 discussed the technical dependencies and addressed issues with technical dependencies that impact the coordination of software engineering projects. We found ten types of technical dependencies in software engineering projects in this study. We observed that technical dependencies tend to increase the complexity of a project, decrease productivity, and increase the integration issues. The results suggest that the developers must be aware of particular types of technical dependencies in software engineering projects, and they need to coordinate effectively among team members
The variability of recession behavior on the upper watersheds has been investigated on the different decades and soil types in the Java Island of Indonesia. A comparison of decade variations in retardation behavior indicates that decade II (1990-1999) has the smallest variability. This situation shows that there is a significant role for evapotranspiration in influencing the rate of depletion of water from the soil layers in the driest season of the decade. Since the dry season retardation behavior and the long-term average of retardation were not significantly different, the use of baseflow recession in a relatively dry decade could be used as an alternative approach to determine the real watershed retardation. Finally, the retardation factor was linked to soil, and classification according to soil type units showed only slight variations. The Typic Dystrudepts and Typic Eutrudepts are soil types that can control water retention slightly lower compared to other soil types
The grade 12 pass rate in mathematics is of national concern in South Africa. This pass rate is influenced by the quality of teachers with which the learners are faced. In this paper we report on the level of understanding of content by grade 12 mathematics teachers. We specifically studied their performance in grade 12 assessment tasks in trigonometry, functions and calculus. The sample (n=28) of teachers was selected by the mathematics subject advisor of a district in KwaZulu-Natal, South Africa. The teachers were informed that on the fifth day after the first session they would write a test based on grade 12 mathematics examination type questions on functions, trigonometry and calculus. That test of one-hour duration was set and marked by the subject advisor. The results for the overall test and for each of the three sections were analysed to determine the mean, standard deviation, minimum score, range, first and third quartiles and to produce histograms. We found that fifty percent of the teachers attained scores of less than 57% in assessment tasks based on trigonometry, functions and calculus. We argued that these low scores of the teachers who are expected to teach the relevant content, could be a contributing factor to the low pass rates by grade 12 learners in the National Senior Certificate Examinations
Axial Flux Permanent Magnet Synchronous Motor (AFPMSM) is chosen for use in electric vehicles because of its high features, good controlling is a demand to meet the desired performance target. This paper proposes a multi-objective approach to optimize the parameters of the proportional-integral (PI) controller b using Particle swarm optimization (PSO) in the Vector control (or FOC) of an (AFPMSM). The PSO method was chosen to optimizing the PI controller’s parameter by using a multi-objective cost function, which represents a comprehensive evaluating function considering the dynamic and steady-state response. This approach improves the performance of AFPMSM speed controller in tracking the desired reference. The mathematical model of AFPMSM was introduced and FOC was used as effective control. Results were obtained, by using MATLAB-SIMULINK, for multiple operational cases to investigate the performance of the AFPMSM. Simulation results show the superior performance of the proposed controller, for tracking different speed references, comparing with traditional methods. Which gives rise-time=0.72s, overshoot=0.05%, and steady-state time=0.73s. Moreover, the proposed controller shows a high degree of robustness against stator parameters variations
