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Sustainable EOQ Model with Multi Container Transportation Problems Ahmad Mubin; Fahmi Syahril; Tyas Yuli Rosiani
Jurnal Teknik Industri Vol. 22 No. 2 (2021): August
Publisher : Department Industrial Engineering, University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/JTIUMM.Vol22.No2.236-244

Industrial developments and environmental problems encourage decision-makers to determine optimal decisions. In addition, transportation is an aspect that has a significant contribution to environmental damage. Therefore, inventory and transportation decisions need to be integrated to minimize environmental problems. This study made an effort to develop a model of Sustainable EOQ with Multi Container Transportation Problems. The optimal procedure was proposed to determine the optimal number of containers in one vehicle. The results suggested that the proposed procedure could minimize the total annual inventory cost compared to the company's current solution.

Integration of Lean Six Sigma and Theory of Inventive Problem Solving for Minimizing Waste in Shuttlecock Industry Renggarsari, Rika Risma; Garside, Annisa Kesy; Rosiani, Tyas Yuli; Saputro, Thomy Eko
Jurnal Ilmiah Teknik Industri Vol. 22, No. 2, December 2023
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v22i2.23012

In today's competitive business world, organizations are striving to improve their operations and stay ahead. Lean Six Sigma is a popular approach that helps optimize processes and reduce waste. This research focuses on using Lean Six Sigma and TRIZ together to reduce waste in the shuttlecock industry. The study uses a structured process and tools like Value Stream Mapping and Fault Tree Analysis to find and solve waste issues. The results show problems like unnecessary activities, delays, and defects in the production process. Using TRIZ, suggestions for improvements are made based on the analysis. This study shows that combining Lean Six Sigma and TRIZ can effectively reduce waste and improve processes. The findings add to our understanding of using these methods in the shuttlecock industry and offer insights for future research and improvements.

Peningkatan Kualitas Layanan Logistik Melalui Integrasi Model Kano dan Servqual: Studi Kasus pada PT. Pos Gondang, Mojokerto Rosiani, Tyas Yuli; Garside, Annisa Kesy; Ikhlasul Amallynda
JURMATIS (Jurnal Manajemen Teknologi dan Teknik Industri) Vol. 7 No. 1 (2025): January
Publisher : Universitas Kadiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/jurmatis.v7i1.6237

Persaingan dalam industri logistik yang semakin ketat menuntut penyedia layanan untuk terus meningkatkan kualitas pelayanan agar mampu memenuhi harapan pelanggan. PT. Pos Gondang Mojokerto menghadapi beberapa tantangan dalam memberikan layanan yang memadai, seperti antrian panjang, keterbatasan jam operasional, dan tidak adanya garansi untuk paket yang dikirim. Penelitian ini bertujuan untuk mengukur dan meningkatkan kualitas layanan PT. Pos Gondang melalui integrasi metode Servqual dan Model Kano. Metode Servqual digunakan untuk menghitung kesenjangan antara kinerja pelayanan dengan harapan pelanggan, sedangkan Model Kano mengidentifikasi atribut layanan yang harus diprioritaskan untuk perbaikan. Berdasarkan analisis, terdapat 12 atribut yang memerlukan peningkatan segera, termasuk kecepatan layanan, ketepatan waktu pengiriman, dan kenyamanan fasilitas. Hasil penelitian menunjukkan bahwa implementasi perbaikan pada atribut prioritas tersebut dapat meningkatkan kepuasan pelanggan secara signifikan dan memperkuat posisi kompetitif PT. Pos Gondang di pasar logistik. Implikasi dari penelitian ini memberikan wawasan bagi perusahaan dalam menyusun strategi perbaikan layanan berbasis kebutuhan konsumen, sehingga mampu meningkatkan daya saing di tengah persaingan industri logistik yang dinamis.

An Integrated Framework for Ergonomic Performance Assessment in Food Manufacturing: A Case Study Using Ergo-VSM, AHP, and TLS Rosiani, Tyas Yuli; Li, Meng-Hua; Rahmasari, Dewi
Jurnal Optimasi Sistem Industri Vol. 24 No. 1 (2025): Published in June 2025
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

In food processing industries, particularly nut-based production that relies heavily on manual labor, ergonomic challenges related to repetitive motion, prolonged static postures, and thermal stress are increasingly prominent due to rising production demands. These issues are often concentrated at specific workstations and tend to be overlooked in conventional performance evaluations. To address this gap, this study proposes an integrated Ergonomic Performance Assessment (EPA) framework designed to evaluate ergonomic performance comprehensively across the entire production line. The framework integrates Ergonomic Value Stream Mapping (Ergo-VSM) for process visualization, the Analytical Hierarchy Process (AHP) for assigning weights to ergonomic criteria, and the Traffic Light System (TLS) for intuitive performance classification. A case study was conducted in a peanut processing facility, involving 8 workstations. Data were gathered through direct observations, detailed task analyses, and expert input from three experts via Focus Group Discussions (FGDs). Ergonomic indicators were derived from literature and expert consensus, weighted using AHP based on pairwise comparisons, and assessed using structured observational metrics. The results were visualized within the Ergo-VSM framework using TLS. Ergonomic performance was quantified through the Manufacturing Ergonomic Score (MES), which reached 69.15%. Based on a three-tier classification system low (<60%), moderate (60–90%), and high (>90%) this score falls within the moderate category, indicating several areas require improvement. Musculoskeletal disorder risks and high working temperatures were identified as the most critical concerns, particularly at thermally intensive and physically demanding workstations. The EPA framework enabled the visualization of ergonomic variation between workstations, allowing for systematic identification of priority areas for improvement. This research contributes to ergonomic evaluation literature by offering a structured, data-driven approach and provides practical insights for enhancing worker well-being and operational productivity.

Enhanced Sustainability Assessment Framework for Plywood Manufacturing: A Multi-Method Approach Using Delphi Technique, BWM, and S-VSM Garside, Annisa Kesy; Rosiani, Tyas Yuli; Amanda, Adelya; Saputro, Thomy Eko; e Oliveira, Eduardo
Jurnal Optimasi Sistem Industri Vol. 23 No. 2 (2024): Published in January 2025
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Sustainable manufacturing has emerged as a critical priority in addressing the complex environmental, social, and economic challenges of modern industry. This study focuses on the plywood sector, a signiﬁcant contributor to manufacturing, which faces distinct sustainability issues such as high energy consumption, material ineﬃciencies, and hazardous working conditions. To address these challenges, the research introduces workload and noise level as critical indicators for assessing sustainability, broadening the scope of traditional evaluation methods. A multi-method framework was employed, integrating the Delphi technique to identify key sustainability indicators, the Best Worst Method (BWM) to assign weights to these indicators, and Sustainable Value Stream Mapping (S-VSM) paired with a Traﬃc Light System (TLS) to evaluate and visualize the Manufacturing Sustainability Score (MSS). Applied to a plywood manufacturing case study, the framework highlighted areas requiring improvement, particularly in worker well-being and operational safety, while demonstrating the industry's moderate overall eﬃciency. By oﬀering actionable insights for improving resource use, operational processes, and employee conditions, this framework provides a practical tool for industry managers aiming to enhance sustainability. Furthermore, its adaptability makes it a valuable reference for other manufacturing sectors seeking to implement resource-eﬃcient and sustainable practices. This research not only ﬁlls critical gaps in sustainability assessment but also contributes to advancing industry practices by emphasizing holistic and innovative approaches to manufacturing eﬃciency.

Peningkatan Keterampilan Manajemen Keuangan dan Pemasaran Briket Limbah Kulit Jeruk Utama, Dana Marsetiya; Rosiani, Tyas Yuli; Baroto, Teguh
Yumary: Jurnal Pengabdian kepada Masyarakat Vol. 6 No. 1 (2025): September
Publisher : Penerbit Goodwood

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35912/yumary.v6i1.3737

Purpose: This program aims to enhance the financial management and marketing skills of Karang Taruna Desa Tlogowaru, which has been experiencing difficulties in optimally managing the production of briquettes from citrus waste. This activity is expected to accelerate the development of business scale through more effective cost management and marketing strategies Research methodology: A participatory approach was implemented, involving several stages: initial knowledge assessment, socialization, training, mentoring, and evaluation. Pre- and post-test evaluations were conducted and analyzed using the Wilcoxon test to measure improvements in participants' understanding and skills. Results: The study found significant improvements in participants' abilities to manage cash flow, maintain structured financial records, and design appealing product packaging. Conclusions: This program positively contributes to community empowerment by strengthening local resource-based economic skills and enabling the sustainable development of a citrus waste briquette business. Limitations: This study is limited to a single village and target group, so application in other areas may require contextual adjustments Contribution: This study is beneficial for community empowerment, micro-financial management, and small business marketing and can serve as a reference for similar programs in other communities.

Pemberdayaan masyarakat dalam produksi briket dari limbah kulit jeruk di Kabupaten Malang Diami, Berlinda Amalia; Salsabilah, Aisyah Leilani; Salsabila, Nadhea Aurelie; Djirimu, Hanum Salsabila; Utama, Dana Marsetiya; Rosiani, Tyas Yuli
KACANEGARA Jurnal Pengabdian pada Masyarakat Vol 7, No 4 (2024): November
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/kacanegara.v7i4.2502

Tingginya jumlah limbah kulit jeruk yang dihasilkan oleh perkebunan jeruk di Kabupaten Malang menimbulkan masalah lingkungan yang signifikan, sementara kebutuhan akan bahan bakar alternatif seperti briket semakin meningkat. Hingga saat ini, limbah kulit jeruk belum dimanfaatkan secara optimal, menciptakan peluang ekonomi yang terabaikan dan memperburuk masalah lingkungan. Program pengabdian ini bertujuan untuk mengatasi permasalahan tersebut melalui pemberdayaan masyarakat setempat dengan memberikan pelatihan mengolah limbah kulit jeruk menjadi briket. Pendekatan partisipatif digunakan, di mana melibatkan masyarakat dalam setiap tahapan produksi briket, termasuk koordinasi dengan mitra, penilaian awal pengetahuan, sosialisasi, pelatihan, pendampingan, serta evaluasi keberhasilan dan keberlanjutan program. Evaluasi dilakukan melalui pre-test dan post-test dengan analisa statistik menggunakan uji Wilcoxon untuk mengukur peningkatan pengetahuan dan keterampilan. Hasilnya menunjukkan peningkatan signifikan dalam kemampuan masyarakat mengolah limbah menjadi briket berkualitas, serta peningkatan kesadaran lingkungan dan potensi ekonomi dari limbah. Pemberdayaan masyarakat melalui pengelolaan limbah terbukti efektif dalam mengatasi masalah lingkungan dan meningkatkan kesejahteraan ekonomi.

Integration of Lean Six Sigma and Theory of Inventive Problem Solving for Minimizing Waste in Shuttlecock Industry Renggarsari, Rika Risma; Garside, Annisa Kesy; Rosiani, Tyas Yuli; Saputro, Thomy Eko
Jurnal Ilmiah Teknik Industri Vol. 22, No. 2, December 2023
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v22i2.23012

In today's competitive business world, organizations are striving to improve their operations and stay ahead. Lean Six Sigma is a popular approach that helps optimize processes and reduce waste. This research focuses on using Lean Six Sigma and TRIZ together to reduce waste in the shuttlecock industry. The study uses a structured process and tools like Value Stream Mapping and Fault Tree Analysis to find and solve waste issues. The results show problems like unnecessary activities, delays, and defects in the production process. Using TRIZ, suggestions for improvements are made based on the analysis. This study shows that combining Lean Six Sigma and TRIZ can effectively reduce waste and improve processes. The findings add to our understanding of using these methods in the shuttlecock industry and offer insights for future research and improvements.

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