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Corn Cob Absorption Rate As Acoustic Material Sidharta, Melissa; Sudarsono, Anugrah Sabdono; Hariyanto, Agus Dwi; Arifin, Liliany Sigit
Journal of Applied Science, Engineering, Technology, and Education Vol. 4 No. 1 (2022)
Publisher : PT Mattawang Mediatama Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (665.626 KB) | DOI: 10.35877/454RI.asci984

Abstract

Reducing CO2 emission through innovation discovery is essential to respond to the global warming issue. The research states that construction material contributes 11% of CO2 emission on building. Agricultural waste in Indonesia is plentiful, but it has not been used optimally, one of examples is corncob waste. The study to theoretically identify the absorption level on acoustic panel of corncob waste using two kinds of panel thickness dimensions composed of natural corncob through literature study and laboratory test of impedance tube by identifying the absorption panel coefficient phenomenon of corncob waste. The physical characteristic of corncob is porous, and this study found that there was a good absorption level in two dimensions of panel thickness of 3 cm and 5 cm. It was strengthened by the finding of a frequency shift phenomenon of two dimensions of panel thickness due to resonance in air cavity/gap among corncobs.
PERCEPTION OF RESIDENTIAL CONDITIONS AS AN ONLINE LEARNING SPACE Comparative Study Of Residences In Yogyakarta And Bandung Noviandri, Patricia Pahlevi; Sudarsono, Anugrah Sabdono
Border: Jurnal Arsitektur Vol. 5 No. 1 (2023): JUNE 2023
Publisher : Department of Architecture, Faculty of Architecture and Design, Universitas Pembangunan Nasional "Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/border.v5i1.744

Abstract

The condition of living plays a vital role in the online learning process at home. The residential need for support in the learning process was seen when Covid-19 forced students to study from their residences. However, residences not designed for students to carry out the learning process from home result in the focus/concentration in the process not running well. The study aims to explore the dimensions of residential perception that are by online learning needs. This study uses a quantitative approach with PCA analysis to find dimensions that need to be considered in the residence so that the learning process from home can run well. This study used student respondents living in Yogyakarta and Bandung so that the results of this study have a comparison of student perceptions in two different cities. The dimensions of perception of living conditions for online learning are audial quality, space comfort, space performance, and visual quality. Living conditions have differences in perception according to the type of residence in the form of boarding houses and houses. Ultimately, this study provides design principles that need to be considered in today’s residential design.