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:
The multivalent binding of heteroatoms inside the macrocycle to metals are gained interests. To synthesis functionalized macrocycles based on 3,5-dihydroxybenzoic acid core, a common nucleophilic substitution reaction of phenolic hydroxyl with propargyl bromide under basic condition was applied. The cyclization was achieved with click reaction of dipropargyls with diazides in presence of Copper chloride (I) and sodium ascorbate in dichloromethane. From the other side, the polyvinyl chloride was converted to its polyvinyl azide derivative and finally reduce the azide to its corresponding polyvinyl amine. Finally, the crafted polymer is obtained by amide formation. The intermediates are characterization by the NMR, FTIR spectroscopy, and mass spectrometry, while the FESEM, EXD, XRD, DSC techniques are used for confirm the morphological shape and thermal stability further studied the synthesized polymer. The removal of lead ions is performed by Batch methodology using atomic absorption in different experiment conditions, which is indicated the removal of such metals effective and the recyclability is highly sufficient.
In this paper, we present our main results of the post occupancy evaluation of thermal comfort of two primary schools constructed following the same plane, situated in two different climate zones. The first stage of the work consisted on measurements using meteorological equipment’s. These measurements are used to quantify the physical parameters of the thermal atmosphere, such as temperature, rate of relative humidity and wind speed prevailing inside classrooms. The second step aims to support the results of the first stage and it is a psychological investigation using inquiry with users.
Environmental factors play a significant role in determining the PV system's performance, and the temperature is one factor. In the highland area, the temperature is lower than lowland but with relatively the same amount of irradiance. This paper compares the PV system's performance in the highlands (Semendo Darat Ulu) and the lowlands (Tanjung Enim). Semendo Darat Ulu has an elevation of 1100 meters above sea level and a temperature of ± 28.1 °C, sufficient for implementing solar power plants. Experimental data shows that Semendo Darat Ulu's PV system delivers better performance than Tanjung Enim's PV system. The average power generated by the PV system installed in Semendo Darat Ulu is 32.98 W, 4.21 W, or 115% higher than Tanjung Enim's PV system. It produced average power of 343.88 W per day, which is 77.99 W or 129 % more than the power produced by the PV system in Tanjung Enim. In Semendo Darat Ulu, the PV system pumped a total of 140,669 liters of water during the experiment, which means 33,915 liters or 132 % more water pumped by the PV system Tanjung Enim. Therefore, Semendo Darat Ulu highland has more potential for applying solar power plants than the lowland area.
Gambiran II springs that come from within the forest area are natural resources that are utilized not only to meet the needs of the surrounding people but also to ensure the needs of creatures in the forest. The flow of springs that continue to decline from year to year is inversely proportional to the population that utilizes increasing water so that it is necessary to identify the factors that cause the decline in discharge and sustainable water utilization solutions with increased consumption. Local community today utilize the entire flow of discharge springs for their needs so as to potentially cause problems of unsustainable utilization because they do not pay attention to the social, economic and ecological dimensions. Identification of factors that cause decreased discharge from rainfall parameters and land closures become the starting point for efforts to improve management and solutions of dynamic system approaches designed to look at future projections of water usage quantity that pay attention to social, economic and ecological dimensions. Dynamic system scenarios are predicted to support sustainable water management if the quantity of water used is 50% of the flow discharge and the community lowers a capita consumption of water according to the standard of various water needs.
Tuna capture fisheries have a very important value and meaning for the socio-economic life of coastal communities, either directly or indirectly. On the other hand, the catch of tuna has decreased from a biological aspect based on the weight and length of the fish caught as well as the amount of production and the value of CpUE (Cath per Unit Effort). The research objective was to analyze the sustainability status of tuna fisheries. This study was a survey of 90 respondents in two tuna location centers in Prigi and Malang districts. The method used the Multi-Dimensional Scaling (MDS) analysis using the software Rapfish (Rapid Appraisal for Fisheries). The results showed that the sustainability status seen from 5 dimensions, (1) Biology, (2) Economic, (3) Technology, (4) Social, (5) Institutional, showed that the level of sustainability of tuna fishing from the technological and economic dimensions was Quite Sustainable. For the Biological, Social and Institutional dimensions it shows a low/ Less Sustainable. In general, it can be said that the level of sustainability of tuna fishing in the southern waters of East Java is low.
