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All Journal OPSI Jurnal Sains Teknologi dalam Pemberdayaan Masyarakat Jurnal Jaring SainTek Journal of Engineering Environtmental Energy and Science Prosiding Seminar Nasional PPG Universitas Mulawarman Journal of Computer Science Contributions (Jucosco) Journal Of Chemical Process Engineering
Kartika, Wahyu
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Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Other

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Redesign of the sizing process optimization to produce warp yarn with strong weaving ability Kartika, Wahyu; Soepardi, Apriani
OPSI Vol 16 No 2 (2023): ISSN 1693-2102
Publisher : Jurusan Teknik Industri, Fakultas Teknologi Industri UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/opsi.v16i2.11355

Abstract

The research focuses on optimization of the sizing process parameters for cotton warp yarn material. The sizing process is a crucial step where warp yarn is coated with a starch solution before weaving. The aim is to produce warp yarn with strong weaving ability, thereby facilitating the entire process. To achieve this, several factors are considered, namely the steam bar, and squeeze roll pressure, including machine speed. The techniques used to address this issue include Taguchi in collaboration with Grey Relational Analysis (GRA) to effectively address multi-responses. In this analysis, the larger the better characteristic was applied to S/N Ratio, indicating that the higher the GRG value, the closer it is to the desired optimum condition. Based on the calculations from S/N Ratio response table for the GRG, it can be determined that factor steam bar pressure was selected at 4 Bar, with an average S/N Ratio value of -2.935. factor squeeze roll should be set to level 10 Km/m3, as it yields an average S/N Ratio value of -2.912. Factors squeeze roll) and C (Machine Speed) were selected at levels 2 (10 Km/m3) and 1 (45 M/Min) with average values of -2.912, and -4.771, respectively. 
Sosialisasi Pengelolaan Limbah B3 Pada Kegiatan Sekolah dan Otomotif di Sekolah Menengah Kejuruan Wicaksono, Surya Adi; Kartika, Wahyu; Masrida, Reni Masrida; Hasaya, Haudi; Meilani, Sophia Shanti
Jurnal Sains Teknologi dalam Pemberdayaan Masyarakat Vol. 6 No. 2 (2025): Desember 2025
Publisher : Fakultas Teknik Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/2d5jhz64

Abstract

Hazardous and Toxic Waste (B3) is a significant contributor to environmental pollution and requires proper management in accordance with regulatory standards. In vocational education, particularly automotive programs at Vocational High Schools, workshop activities commonly generate B3 waste such as used oil, batteries, and chemical containers. To address this issue, the Environmental Engineering Study Program of Universitas Bhayangkara Jakarta Raya conducted a community service program at Panca Bhakti Banjarnegara focused on B3 waste management. The activity was carried out through presentations and a Focus Group Discussion (FGD), covering the identification, temporary storage, and further handling of B3 waste based on Ministry of Environment and Forestry Regulation No. 6 of 2021 and Government Regulation No. 22 of 2021. The results showed an increase in participants’ understanding regarding regulatory obligations, proper storage practices, and the importance of preventing environmental pollution at the school scale. In conclusion, this program effectively strengthened knowledge and awareness of environmentally responsible practices, while laying the foundation for ongoing collaboration between the school and university. The program is expected to support the development of environmentally conscious graduates who are prepared to manage B3 waste responsibly in future industrial or automotive workplace settings.
Co-Authors Abdul Majid, Rafdi Afifah, Muanda Aliyah, Andi Nur Apriani Soepardi Darnengsih, Darnengsih Hasaya, Haudi Joyosemito, Ibnu Susanto Kusumawati, Amora Lisa Adhani Masrida, Reni Masrida, Reni Masrida Meilani, Sophia Meilani, Sophia Shanti MUNIRA Mustafiah Navanti, Dovina Pemanana, S. Pratama, Dimas Fauzan Rachel, Debby Saepudin, Tubagus Hedi Shanti, Sophia SITI SETIAWATI Soedarsono, J W Wicaksono, Surya Adi