Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
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This Author published in this journals
All Journal Journal of Applied Science, Engineering, Technology, and Education DIMENSI: Journal of Architecture and Built Environment
Liliany Sigit Arifin
Faculty of Civil Engineering and Planning, Petra Christian University
Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Industrial & Manufacturing Engineering Other

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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.
Exploring the Spatial Potential of Loose Space as Urban Pores in Tunjungan Street Kartowidjojo, Ribka Irena; Arifin, Liliany Sigit
DIMENSI (Journal of Architecture and Built Environment) Vol. 53 No. 1 (2026): JULY 2026 (In Press)
Publisher : Institute of Research and Community Outreach, Petra Christian University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/dimensi.53.1.%p

Abstract

The phenomenon of urban canyons, characterized by narrow street corridors flanked by dense vertical building masses, has emerged in many city centers, including the Tunjungan (CBD) in Surabaya, resulting in a decline in environmental quality and pedestrian comfort. This study aims to explore the spatial potential of loose spaces, defined as remaining or underutilized urban spaces, as potential urban pores in the context of dense urban canyons. A descriptive qualitative approach was used through direct field observations and visual documentation. Six loose space locations along the Tunjungan corridor were selected and analyzed using six qualitative parameters derived from the theory of loose spaces and urban porosity, adapted to local conditions. The findings indicate that several loose spaces possess spatial characteristics that indicate ecological and social potential, particularly in relation to spatial openness and opportunities for social interaction. This study positions loose spaces as an initial spatial resource that can inform future urban strategies that help address urban canyon conditions in urban areas.
Co-Authors Agus Dwi Hariyanto Istiawati Kiswandono Kartowidjojo, Ribka Irena Sidharta, Melissa Sudarsono, Anugrah Sabdono