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:
In a weighted Sobolev space for a non-homogeneous boundary value problem of a higher-order operator-differential equation, the well-posedness and the unique solvability is established. The estimates on the norms of the operators of intermediate derivative associated with the solvability conditions are provided. In the principal part of the differential equation, the relation between the lower bound of the spectrum of the main operator and the weight exponent 𝑘 (−∞ < 𝑘 < ∞) is determined. The results are illustrated as an applied example of a problem for partial differential equations
Traditional Indonesian architecture and Dutch colonial architecture in Indonesia often have an attic as an intermediate space with openings for ventilation and natural lighting. Most of the houses in residential areas in Manado have corrugated zinc roofs and no longer use attic ventilation. This article aims to examine the benefits of attic ventilation in zinc-roofed buildings and to determine the existence of roof ventilation and the thermal comfort conditions of residents in Griya Paniki Indah (GPI) housing, Taman Mapanget Raya (Tamara) housing, and Kharisma Koka (KK) housing. The benefits of roof ventilation were investigated by constructing and comparing two similar test cells in which one cell had roof ventilation and the other did not. The air temperature in the test cell with a ventilated roof is always 1.2 °C lower than the air temperature in the cell without roof ventilation. Almost all houses in the three residential areas have a modern and minimalist architectural style with roofs that do not allow roof ventilation. All respondents stated that they always felt uncomfortable or hot to very hot from daytime to night. As a result of these conditions, the residents' efforts to regulate the climatic conditions of the room by using air conditioning, fans, or opening windows and ventilation throughout the day. There is a need for comprehensive socialization of the benefits of attic ventilation applications to the wider community, which in turn is an effort to achieve thermal comfort and energy savings in the construction and housing sectors.
A simulated and experimental validation of a tube and shell heat exchanger device, used for heat transfer laboratory, was developed. The validation is carried out by means of computational fluid dynamic applying the turbulence formulation k-ω for shear stress transport, different treatments were carried out in which two types of systems were varied, a parallel flow system and a counterflow system. Among the results obtained are the temperature profiles for all the treatments, the flow lines through the systems, and the results show the comparison of temperature profiles for the techniques used, obtaining average error margins between samples of 4%
Multiuser superposition transmission (MUST) provides the flexibility of using the same radio resources for two users with varying distance from the serving base station. This article presents a performance evaluation of MUST using three waveforms; namely: cyclic prefix orthogonal frequency division multiple access (CP-OFDM), and two newly proposed frequency division multiplexing (FDM) filter solutions for 5G, which are universal filtered multiple access (UFMC) and filtered OFDM (F-OFDM). The evaluation process takes into consideration two main criteria; throughput and peak to average power ratio (PAPR). Two scenarios have been simulated and studied. In scenario one, six user equipment (UEs) and two base stations (BSs) were simulated in orthogonal multiple access (OMA) environment, while in scenario two, 12 UEs and two BSs were simulated in MUST environment. The simulation results show that the far UEs can be served with sufficient data rates to provide basic connection, without much degradation in the throughput of near UEs. Furthermore, the comparison shows a 53.5% increase in the overall throughput of MUST NOMA compared to OMA with CP-OFDM scenario, and a gain of 12.58% and 52.7% for UFMC and F-OFDM, respectively
EG is an indicator to measure the success of a country's economic development. It is hoped that the revenue sourced from PAD can provide an increase in regional EG, besides that, with the allocation of DD and ADD, it is hoped that it can further increase economic growth both in villages and for the city and provincial districts. This study was to determine the effect of PAD, ADD, and DD on EG in East Kalimantan Province. This research was conducted by taking samples from 7 districts in East Kalimantan Province in 2015-2019. The analysis technique used in this study is the multiple linear regression. The results of this study indicate that PAD has an effect on EG, the ADD has no effect on economic growth, and DD has an effect on economic growth.
