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 obtain determinants of the parameters of the index performance of groundwater irrigation in the karst mountainous regions. Determination of the value of performance index of groundwater irrigation systems is based on technical aspects and non-technical aspects by analyzing the variables that give effect to each of the aspects both technical and non-technical. The method used in collecting data for technical variables was direct measurement of site visit and secondary data from the field. The non-technical aspects of using questionnaire data as qualitative data were converted into quantitative data. Filtering of variables was done with the smart PLS-Partial Least Squares tool. Then an analysis was carried out using the GRG-Generalized Reduced Gradient method to solve the non-linear equation with the objective-objective assumption and constraints. The model calibration test was calibrated and simulated on the parameters used. The results of the study were in the form of a performance index model to measure the level of success in developing groundwater irrigation systems in karst mountainous regions. The performance index evaluation of the developed groundwater irrigation system was an accumulation of technical indexes and non-technical indices involving influential variables
The study was conducted in one of the laboratories of the General Company for automobile and equipment/mechanical lab in Alexandria, 50 km south of Baghdad in 2019. To evaluate the performance of the pump (Rovatti T3- P.T.O.) after reducing its operational speed for the purpose of using an agricultural tractor with less horsepower, in order to save money and fuel, the study included using of three levels of pump speed (1500,2000 and 2500 rpm), three waters levels (sump) (1, 1.5 and 2 meters) and three levels of the Head (delivery head) (0.5, 1 and 1.5 bar) and the New Holland TD80 agricultural tractor was used by the power take off (P.T.O.) in the test, some technical characteristics were studied For the pumping system included: discharge (Q), water horsepower (WHP) and Total Dynamic Head (TDH). The experiment was carried out using a Complete Randomize Design (CRD). With three replications, the least significant difference (L.S.D.) was used at the level of ( 0.05) to compare between the averages of the transactions and the results were as follows: Triple interaction between [ speed 2500 rpm and sump (1m ) and the delivery head (0.5 bar) ] to get the highest discharge It reached (153.333 m3 /hr.) while the triple interaction exceeded the speed between [ 2500 rpm and the sump (2 m ) and the delivery head (1.5 bar) ] in obtaining the highest (TDH) reached (21.167 m) and it showed the superiority of the triple interaction between the [ speed 2500 rpm, sump (1 m), delivery head (1.5 bar) ], to get the highest (WHP) reached (11.3227 hp.), and according to the pump curves mentioned by the manufacturer, it turns out that it is possible to use medium capacity tractors (35-45 hp) instead of the tractor (80 HP) currently used, and this saves money and fuel
This article analyses the sustainable water supply models adopted by rural community groups, considering the social, economic, technological and ecological sources. Furthermore, distribution performance, institution, and sustainability were examined using survey, observation and interview methods, and the data obtained were analyzed using WarpPLS, with all predictor variables and sustainability criteria in a condition that is not good. Therefore, it was established that the social factors, technology, ecology of water sources, and the performance of drinking water distribution indirectly affects the sustainability of supply, by the mediating institutional factors, which together with economic and ecological factors tend to directly influence sustainability. In addition, ecological factors exhibited the greatest total effect, and institutional factors strengthened the community role, in efforts to improve the environmental conditions of water resources. In conclusion, the ecology of water sources and institutions was identified as the most influential variable on the supply sustainability, while the distribution performance variable confers an indirect effect, through institutional mediation
Small-Medium Enterprises (SMEs) of batik involves chemicals that an enhanced potential in environmental impact due to the limitation in resources to pursue production. Therefore, this study aims to analyze the environmental impact and determine the Eco-Efficiency Index (EEI) from batik production using the eco-efficiency method. The results showed an environmental impact of 0.20571247 DALY on the human health factor, 203994.79 PDF*m2yr on ecosystem quality factor, and 94449.809 MJ surplus on resources factor. Furthermore, the impact on the environment caused a total eco cost of IDR. 4,769,679,764.48 and EEI of 0.0039, that indicates the industry is affordable but not sustainable. Hence, proper material management is expected to possibly improve the situation and reduce the use of raw materials, which is achievable by recycling items in the nature of wax, water and coloring
This research intends to investigate the existing run-off coefficient based on the land use in the area of Batur, Bratan, Buyan, and Tamblingan Lake (Bali, Indonesia). The value is used for knowing how big the run-off volume that has to be reduced so there is no flooding in that area. The methodology consists of overlaying the land use map and then multiplying it with the run-off coefficient The run-off coefficient is as the function of design flood, rainfall intensity, and land use. The result shows that the run-off coefficient of Batur Lake is 0.37; Bratan Lake is 0.38; and Buyan Lake is 0.36. However, the run-off coefficient mean is 0.37
