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 study aims to examine the ability of natural essential oils extracting from plants to control stem rot disease. The experiment was conducted at the Balittro, from July to November 2017, using a randomized block design consisting of seven treatments with four replicates. The plot size was 2 x 2 m and planted with peanut of local variety (Payo, Solok City) 9 plant: 1) JAI1: Cinnamon leaf oil (Cinnamomum burmanii) spraying once week, 2.) JAI2: spraying cinnamon leaves once every two weeks, 3). JBI1: bamboo piper oil (Piper aduncum) spraying once a week, 4). JBI2: weekly spraying of bamboo piper oil, 5). JCI1: citronella oil (Androphogon nardus) spraying once a week, 6). JCI2: citronella oil is spraying once every two weeks and 7). J0: without fungicides (controls). The formulated essential oil distillated from cinnamon leaves, bamboo piper and citronella were sprayed every week or two weeks, with dosage 3000 ppm. Parameters observed including the percentage and intensity of disease attack observed for six times. Observation of agronomic parameters included plant height and number of branches, pod number, weight per clump and weight 100 seeds. The results showed that botanical fungicide essential oils of citronella and bamboo piper have a higher ability compared to cinnamon leaf in controlling stem rot disease of peanuts (84.85% and 65.65%). Vegetative growth of peanuts treated with, essential oils of citronella, bamboo piper is better than cinnamon leaves and without fungicides. The amount of peanut fruit weight, weight per clump and weight of 100 seeds was significantly higher (51.74 g) than the fungicide treatment of essential oils of citronella oil and bamboo piper oil. The implication of the study is botanical fungicide derived from citronella and bamboo piper offered an environmentally sound solution to overcome the attack of stem rot disease in peanuts plants
Electronic ballasts allow to the discharge lamps to improve the quality of radiation by operating at high frequency. In this work, the design of a high-frequency power supply is proposed (multicellular converter series 4-cell based electronic ballast) to supply a low-pressure mercury-argon Ultraviolet-C (UVC) lamp for sterilization with a sinusoidal current of 50 kHz frequency and an effective value of 0.65A to have a germicidal effect for water purification (a maximum of UV radiation at 253.7 nm). The objective is the elaboration of modern control laws for a discharge lamp powered by a series multicellular converter for water sterilization. The control that we have used is the higher order sliding modes "super twisting algorithm", and for the converter, we have adopted the direct control. The performance evaluation of the proposed regulators was carried out by conducting several closed loop robustness tests
The volcanic area is blessed with a lot of resources and cursed with eruptive disaster at the same time. Fertile land, deep forest, mining deposit, and water reserve are examples of the potential within a volcanic environment. The more productive activity is taking place, the more it risks damaged by a disaster. In 2010, Merapi, an energetic volcano in Java – Indonesia, erupted on a massive scale equal to one event in one hundred and seventy years. It was estimated up to 140 million m3 lahars produced, overwhelming installed sabo dams with only 20 million m3 in capacity. It damaged these sabo dams severely. Meanwhile, damaged sabo dams urgently needs to be either rehabilitated or reconstructed to set preparation against the next incoming eruption. This paper would focus on the estimation of functional performance given by the sabo dam at present actual condition. The aim is to create modelling framework base on structural equation modelling (SEM). It adopts water resources principles, recent developed model, regulations and factors that influencing this purpose. All governing factors are grouped into three major classifications, i.e. physical aspect, regulative aspect and social aspect. Output will be governing aspects proportion of weight in assessing actual performance. The model will be useful to value sabo dam conditions in the framework of rehabilitation and reconstruction planning where a limited budget is present
Nakayasu synthetic unit hydrograph is one method that is widely used in the analysis of design flood discharge in Indonesia. The Nakayasu synthetic unit hydrograph method requires relatively little data and the results still need to be tested in order to fit the reality. Following the various studies related to α parameter that have been carried out, these parameters are still not optimal and only valid in certain locations, so the formulation is needed to determine the value of α parameter which is adjusted to the physical watershed characteristics in Java. This research aims to develop a model α parameter that is related to the characteristics of the watershed in Java. The physical parameters of the watershed are shape factor (E), watershed slope (S), the distance from the outlet to a point on the stream nearest the centroid of the watershed area (T), watershed length (I), perimeter (W) and watershed area (A). The α parameter developed is generated from statistical analysis for several watershed characteristic variables that have a significant effect. The results of the model development α parameter are with R2 = 0.8768 and R = 0.9364
Supplemental instruction (SI) is one of the academic support programmers in the College of Agriculture, Engineering and Science at the University of KwaZulu-Natal, South Africa. Supplemental instruction is based on the concepts of collaborative peer-learning principles, integrating academic learning and critical thinking skills with module content, ultimately developing higher-order thinking and the desired technical competence. This study explored the relationship between student attendance at SI sessions and their academic performance in their respective modules across two schools; School of Life Sciences (SLS) and School of Mathematics, Statistics and Computer Science (SMSCS). Data were collected from first and second year modules offering SI by these schools during the first semesters of 2016 and 2017. A general trend in SI attendance was seen across the modules with more students attending SI in the beginning of semester, before a test or exam. Overall, the pass rates of SI attendees were higher than that of the non-SI attendees. Importantly, among the regular SI attendees, there was not only a noticeable improvement in the pass rate but also of the academic performance in terms of their average marks. In addition to the number of SI sessions attended, the relative effects of other variables such as ethnicity, gender and matric score were also focused on; SI attendance and matric scores were found to be good predictors of the average marks obtained by the students. The results of this study supports the use of SI as an effective academic support programme in these schools.
