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:
Precast prestressed concrete double tee is an economic bearing element which can be prepared into a large span to coverage large area. Self-weight of the beam and overlay slabs or finishing layers considered a major part of the load carried by prestressed concrete beams. If all or part of the beam can be manufactured using lightweight concrete, there is a prospective for economic savings because its self-weight could be reduced up to 20%. This research paper represent a comparison between double tee beam made from lightweight concrete vs. normal weight in the basic of designing issues for its major aspects. The study based on the section adopted by the Precast/Prestressed Concrete Institute, and a parametric analysis carried out to predict a design guide for both lightweight and normal weight section. Load-span charts obtained and recommended to used with clear way to show the effect of reducing the total weight of the section by using lightweight concrete. Then the effect extend to include the camber at erection and long-time camber. In general the variation of load bearing capacity of the section raised much more for lightweight with respect to normal weight concrete. Also, better response in its camber behavior shown at both stages (at erection up to long-time)
Linear programming is one of the operation research techniques to optimize certain cases. In terms of the environment, one application of programming is the case of the disposal of industrial waste into the rivers. This programming is a tool for making waste disposal decisions by considering the interests of many parties. In this linear programming, industrial interests become "objective functions", namely "Minimize the amount of reduced pollution load" with 28 equations as constraints including ten constraints related to stream standards, nine constraints related to effluent standards, and nine constraints related to the efficiency of wastewater treatment plants. The results of linear programming modeling show optimal conditions, i.e. the level of wastewater treatment that must be done by each industry before being discharged into the river so that the river is not polluted
