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:
Communal outdoor space functions as a social space, especially in dense urban housing, such as in a city. The microclimate represents local climatic conditions consisting of temperature, humidity, wind and solar radiation. Many previous studies have looked at the relationships and effects of microclimate that have an impact on the intensity and behavior of outdoor space use. Unfortunately, this research has never been carried out in a dense communal space such as a urban informal settlement. Because there are people who tolerate and end up enjoying feelings of warmth and heat, depending on expectations and thermal experiences in the past. The objective of this study was to assess how much the influence of microclimate elements on the space use is related to preferences on microclimate and spatial use activities. A case study was conducted in a communal space in the informal settlement of Petamburan, Jakarta. The Field Survey included a structured interview with standardized questionnaire and observation of activities in the communal space, along with daytime microclimate monitoring. Data analyzed with PLS (Partial Least Squares) program to obtain the first model showing the measurement model and the second model which was a structural model that shows the estimated power of the equation model among the measured latent/construct variables. The analysis showed that a person's behavior in the form of the arrival rate (frequency) in using their communal space cannot only be evaluated from the conditions of the microclimate in the form of wind but need to be seen first from their preferences (hot and humid) on the microclimate. These results will serve as guidelines for architects and urban designers in describing conditions and possible further developments to improve microclimate conditions based on the physical design of urban space
Exploration is one of the activities of the mining process which aims to obtain information about the geological conditions of a deposit that is below the surface of the land. Exploration activities have risks and require a large cost. Therefore, a more accurate estimation method is needed in determining the value of areas that are not sampled in exploration based on the surrounding data. In coal deposits, there are two main output parameters which are coal thickness and quality. In this study, the coal quality parameters used are calorific and sulfur values. In this study, we will compare the Kriging method with Inverse Distance Weighting, in estimating coal thickness and quality. The aim is to find out the most accurate estimation of coal thickness and quality between the Kriging and IDW methods based on the Root Mean Square Error (RMSE) value. The method of testing the estimation results is cross validation. The choice of the variogram model is based on the lowest RMSE value. The research method used is a quantitative method. Coal exploration data in the form of bar data were analyzed with descriptive statistics with Minitab 17 software and continued with geostatistical analysis using GS + software. From the results of the calculation of the two estimation methods, it was found that the kriging method was more accurate than the IDW method based on the lower RMSE Kriging value on the thickness data, calorific value and coal sulfur worth 1,622 m, 71,504 Kcal / Kg, and 0.140% compared to the IDW method RMSE on coal thickness, calorific value, and sulfur data are 1,704 m, 74,731 Kcal / Kg, and 0.142%