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 Bengawan Solo River Region with an area of 19,778 km2 consists of 96 watersheds with four main watersheds, namely the Bengawan Solo watershed with an area of 15,295.69 km2, which has a main river, the Bengawan Solo River which flows from Wonogiri to the downstream area on the north coast of Gresik Regency, Grindulu Lorog Watershed with 1,040,656 km2 area, Corong watershed with an area of 815,081 km2, and Lamong watershed with an area of 760,292 km2. Bengawan Solo River crosses various areas both natural and cultivated areas including forests, rice fields, to settlements and industries, causing changes in water quality from upstream to downstream. The purpose of this study was to determine the level of pollution in the Bengawan Solo River Region from upstream to downstream. This research method is to analyze the parameters of the results of testing water quality samples at several points with the Pollution Index method for second grade water quality then spatially analyzed. The results showed that of the 29 monitoring points of river water quality in the Bengawan Solo River Region, 17% were heavily polluted, 59% were moderately polluted, 24% were light polluted, and 0% were meeting quality standards. Therefore, efforts are needed to manage the river based on its water quality by maintaining the capacity of the river against pollution loads that can be received by water bodies
The work presented in this paper concerned with the design and software implementation of STATCOM based on multilevel diode clamped converter. Two topologies of this type of converters have been considered and tested. The first topology was STATCOM based on three-level diode clamped converter, while the second one was STATCOM based on the five-level diode clamped converter. Phase Shift Pulse Width Modulation control strategy was employed for driving the STATCOM. The main task of the proposed work is to compensate a grid with semi-pure (low distorted) sinewave three-phase voltages. Simulation results illustrate that the STATCOM (for the two types) can control Q rated at 100 KVA from leading to lagging (or vice versa) within 31.5ms, maintaining capacitor voltages with an acceptable balance range