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Determination Strategy for Controlling Bloodstock Components Packed Red Cell Using Monte Carlo Simulation Hanif Awandani; Helia, Vembri Noor; Ibrahim, Faisal
Jurnal Sistem Teknik Industri Vol. 24 No. 1 (2022): JSTI Volume 24 Number 1 January 2022
Publisher : TALENTA Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jsti.v24i1.7746

Abstract

Blood supply is an important part that is very influential on health because almost all blood types are necessary for medical activities. This condition makes blood management very important, but improper blood management can cause a waste that results in huge final costs and causes losses for both the customer and the blood supplier. In this case, Monte Carlo simulation can be used to develop several policies that can optimize blood inventory levels and minimize inventory costs at Indonesian Red Cross XYZ. In this simulation, input data required are blood donor supply and Packed Red cells (PRC) demand data, this data will be used to determine the shortage and expired rate. From simulation will be obtained shortage rate of 33 blood bags and an expired rate of 75 blood bags with inventory cost Rp. 36,226,964. Monte Carlo simulation will make new policy rules with increasing the supply of whole blood (WB) which will be used as a component of the PRC and reducing the supply level. From these simulation results, the best policy will gain and applied at PMI XYZ to optimize inventory cost.
Redesign of Wallet Production Facility Layout Using ARC and Simulation at Fanri Collection Miranda, Suci; Helia, Vembri Noor; Aldefka A. Anafachsyah, Audrie; Sahirah Elfahmi, Azzati; Raihan; Arum Sari, Sekar
ETHOS: Jurnal Penelitian dan Pengabdian kepada Masyarakat Vol. 12 No. 2 (2024): (Juni, 2024) Ethos: Jurnal Penelitian Dan Pengabdian Kepada Masyarakat (Sains
Publisher : UPT Publikasi Ilmiah UNISBA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29313/ethos.v12i2.3553

Abstract

Abstract. The development of technology at this time causes competition in the accessories and fashion industry. This situation has caused an increase in the number of requests for products at Fanri Collection, a producer of leather craft accessories. To survive and win the competition, companies need to increase productivity. One way of resolving the issue is by designing the layout and production facilities to minimize the distance of material handling in the production process. This research aims to design layout and production facilities on wallet products with the Discrete Event Simulation (DES) method using FlexSim 21.0 software and Activity Relationship Chart (ARC) to analyze the amount of output and get a proposed facility layout. Based on the simulation results, in producing 200 units of wallets, the initial total material handling distance is 20.667 meters with a cycle time of 1 day, 5 hours, and 3 minutes. After making improvements with ARC, the total material handling distance is reduced to 17.475 meters with a cycle time of 1 day, 4 hours, and 48 minutes. Thus, the improvement can minimize material handling distance by 3.192 meters and reduce cycle time by about 15 minutes. 
QUALITY IMPROVEMENT IN FOOTWEAR SME USING THE DMAIC METHOD OF SIX SIGMA Susanti, Haniatu; Helia, Vembri Noor
Jurnal Disprotek Vol 16, No 2 (2025)
Publisher : Universitas Islam Nahdlatul Ulama Jepara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34001/jdpt.v16i2.8472

Abstract

Quality control through systematic analysis and preventive measures is essential to minimize product nonconformities. This study aims to identify the number of defects in men's pantofel shoes, calculate the Defects Per Million Opportunities (DPMO), and determine the sigma level of the production process. One effective method for quality control is Six Sigma, which targets significant quality improvements by aiming for zero defects. The Six Sigma approach applied in this study follows the DMAIC methodology (Define, Measure, Analyze, Improve, and Control).  The research was conducted on a footwear SME, and the identified category of defects is attribute defects. Attribute defects involved issues such as glue stains, loose insoles, uneven stitching, and torn leather. Out of 1,050 observed samples, 155 units (14.76%) were found to be defective, with glue stain defects accounting for the majority (92 units or 59%). The DPMO for attribute data was calculated at 36,904.8, corresponding to a sigma level of 3.28. Based on the findings, recommendations are proposed to reduce the occurrence of glue stain defects as a priority for quality improvement. The predominant cause of glue stain defects is insufficient lighting at the gluing workstation. Therefore, the proposed improvement focuses on enhancing lighting conditions, formulated using the 5W+1H method.PENINGKATAN KUALITAS DI UKM SEPATU MENGGUNAKAN METODE SIX SIGMA DMAICPengendalian kualitas melalui analisis sistematis dan tindakan pencegahan sangat penting untuk meminimalkan ketidaksesuaian produk. Penelitian ini bertujuan untuk mengidentifikasi jumlah cacat pada sepatu pantofel pria, menghitung nilai Defects Per Million Opportunities (DPMO), serta menentukan level sigma dari proses produksi. Salah satu metode pengendalian kualitas yang efektif adalah Six Sigma, yang bertujuan untuk meningkatkan kualitas secara signifikan hingga mendekati zero defect. Pendekatan Six Sigma dalam penelitian ini diterapkan melalui metodologi DMAIC (Define, Measure, Analyze, Improve, dan Control).  Penelitian dilakukan pada sebuah UKM sepatu dan mengidentifikasi kategori cacat, yaitu cacat atribut. Sementara itu, cacat atribut mencakup noda lem, sol yang tidak merekat, jahitan yang kurang rapi, dan kulit yang robek. Dari 1.050 sampel yang diamati, ditemukan 155 unit (14,76%) mengalami cacat, dengan cacat berupa noda lem mendominasi (92 unit atau 59%). Nilai DPMO untuk data atribut dihitung sebesar 36.904,8, yang setara dengan level sigma sebesar 3,28. Berdasarkan temuan tersebut, direkomendasikan upaya perbaikan yang difokuskan pada pengurangan risiko cacat berupa noda lem sebagai prioritas peningkatan kualitas.  Penyebab dominan cacat noda lem berasal dari faktor kurangnya pencahayaan pada stasiun kerja proses pengeleman. Oleh karena itu, usulan perbaikan difokuskan pada peningkatan pencahayaan menggunakan metode 5W+1H. 
Redesign the layout of the raw material warehouse from randomized storage to class-based storage Iftitah, Nur; Qurtubi, Qurtubi; Setiawan, Danang; Helia, Vembri Noor
International Journal of Advances in Applied Sciences Vol 14, No 3: September 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijaas.v14.i3.pp773-783

Abstract

The company has a problem of ineffectiveness in the layout of the raw material warehouse due to the use of storage methods that ignore factors such as the type, dimensions, and condition of the goods. This reduces the optimal function of the warehouse and increases the time to retrieve goods. This research aims to redesign the suitable and practical layout of the raw material warehouse by considering its form and function, as well as filling methodological gaps from previous research. The method used is class-based storage. Based on ABC analysis, the category with the highest value is class C goods, with 73 units. Meanwhile, from the fast, slow, non-moving (FSN) analysis, class F (fast-moving) goods have the highest frequency of movement, with a movement percentage of 63% for 10 units of goods. The warehouse slotting analysis shows an increase in the number of shelves from nine to 15 shelves with five different shelf models and layout changes in raw material warehouses 1 and 2. The class-based storage method results in a more organized layout, efficient movement of goods, and faster picking time to optimize warehouse functions.
Performance measurement system using performance prism approach in batik company: a case study Helia, Vembri Noor; Sutrisno, Wahyudhi; Zaputra, Afriza Syawal; Qurtubi, Qurtubi
Jurnal Sistem dan Manajemen Industri Vol. 5 No. 1 (2021)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/jsmi.v5i1.3099

Abstract

XYZ company is one of the small-medium enterprises (SME) engaged in the batik industry with the main focus on making muslim clothes made from printed batik and batik. The company cannot evaluate the cause of the turnover decrease because no performance measurement has been applied. Therefore, a company performance measurement is carried out using the performance prism approach because a company performance appraisal is needed stakeholder contributions using the performance prism approach. Stakeholders of this company are consumers, employees, community, capital owners, and suppliers. Supporting the performance prism frame­work, the AHP method was used to determine the weighting and hierarchical structure and then carried out a scoring system with the help of OMAX to determine the company's actual score. This design shows that corporate stakeholders, including owners, consumers, employees, suppliers, and the surrounding community, obtained as many as 34 KPIs. From the implementation of the performance measurement system with OMAX scoring obtained the value of company performance based on satisfaction aspects (6.489), contri­bution aspect (6.582), and capability aspect (5.646). Recommen­dations are also given to improve it.