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All Journal SPEKTRUM INDUSTRI Industrial Innovation Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit
Pramitaningrum, Erlita Pramitaningrum
Politeknik ATK Yogyakarta
Industrial & Manufacturing Engineering

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Supply Chain Analysis for Water and Sanitation Technology Research Project (Case Study in Morotai Island, North Maluku Province) Dimas Hastama Nugraha; Rezeki Peranginangin Peranginangin; Erlita Pramitaningrum Pramitaningrum
Spektrum Industri Vol. 19 No. 1: April 2021
Publisher : Universitas Ahmad Dahlan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v19i1.17906

Abstract

Morotai’s sanitation and clean water technology is covering sanitation technology (bio filter, sanitary pond) and clean water (SPC, Reserve Osmose). This technology is ready to be applied in Daruba Pantai, Morotai, North Maluku and all of its technology originated from Java. Research problem’s focus on supply chain. Research objectives eager to see to what extent the supply chain of sanitation and clean water technology, from the technology producers which are mostly located in Java and the application location is in Morotai. The study of Supply Chain in Clean Water and Sanitation Technology Implementation using an applied based research approach. This study refers to scientific research and attempt to solve practical problems. The result of this study, any supply chain for four technologies in Morotai. The results consist of identifying supply chain components, determining network dimension structure that consists of three types dimension, determining type of business chain, and mapping supply chain. For the sanitation technology (bio filter), there are six certified bio filter suppliers and one of them will be selected as the supplier of the construction project in Morotai area. At the sanitary ponds technology, the constituent component/material can be retrieved from local suppliers in Morotai. For Simple Water Management Installation-Quick Sand Filter/SPC, the technology constituent component itself comprises of ground water tank, pump, roof tank, and Quick Sand Filter (made of fibre). This material is brought from the supplier named CV. Lusika in Bandung. Then, the RO technology constituent component is quite many comprising of water inlet valve, pre-filter, RO membrane, post-filter, automatic inspection valves, flow blockers, reservoir, faucet, and exhaust pipe. RO system unit is brought from the supplier called PT. Zeofilt Water Treatment that located in Bandung.
Modeling of women shoes sizing system based on 3D foot scanner result using machine learning approach Jamila Jamila; Eka Legya Frannita; Gilang Fatikhul Burhan; Windra Bangun Nuswantoro; Anwar Hidayat; Erlita Pramitaningrum; Totok Yulaidin
Industrial Innovation Vol. 2 No. 2 (2025): Industrial Innovation
Publisher : Politeknik ATK Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58533/aqn1f925

Abstract

Accurate shoe sizing plays a crucial role in ensuring comfort, performance, and consumer satisfaction, particularly for women whose foot shapes exhibit considerable anatomical variability. To address this challenge, this research proposes a data-driven modeling framework for developing a women’s shoe sizing system based on three-dimensional foot scanner data. The study was carried out through a systematic process consisting of data preprocessing, clustering using the K-Means algorithm, and evaluation of the clustering performance. The clustering analysis identified four optimal clusters within the dataset, representing distinct patterns in foot dimension measurements. The evaluation result, with a Silhouette Score of 0.25, indicates a moderate yet acceptable level of cohesion and separation among the clusters. These findings demonstrate that the proposed model can effectively capture the underlying structure of women’s foot morphology, providing a scientific foundation for establishing more accurate, customized, and ergonomically appropriate shoe sizing standards.
Nano-fatliquoring agent berbasis minyak sawit untuk industri penyamakan kulit: Review Study Atiqa Rahmawati; Heru Budi Susanto; Fadzkurisma Robbika; Baskoro Ajie; Erlita Pramitaningrum
Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit Vol. 25 No. 1 (2026): Berkala Penelitian Kulit, Sepatu, dan Produk Kulit
Publisher : Politek ATK Yogyakarta Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58533/g0gr5w98

Abstract

The leather tanning industry is currently transforming toward sustainability through the application of nanotechnology. The fatliquoring process is a crucial stage for providing softness and mechanical strength to leather. Palm oil has great potential as a raw material for fatliquoring agents due to its abundant availability and favorable fatty acid composition. This review discusses the development of palm oil-based nano-fatliquoring agents, which covers fabrication techniques via chemical modifications (such as the use of organosilicon), sonochemical (ultrasonic) physical methods, and the stability of Pickering emulsions. Characterization is emphasized on the analysis of droplet size, zeta potential, and leather fiber morphology using SEM/TEM. The advantage of nanotechnology lies in the deeper penetration of droplets into collagen fibers, which not only enhances mechanical properties but also provides additional functions such as UV resistance and antimicrobial activity. Overall, the utilization of palm oil by-products like deodorizer distillate (DD) in a nano-emulsion offers strong future viability for cleaner production in the global leather industry.
Co-Authors Anwar Hidayat Atiqa Rahmawati Baskoro Ajie Dimas Hastama Nugraha Eka Legya Frannita Fadzkurisma Robbika Gilang Fatikhul Burhan Heru Budi Susanto, Heru Budi Jamila Jamila Jamila Najunda Septianing Arini Rezeki Peranginangin Peranginangin Totok Yulaidin Windra Bangun Nuswantoro