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All Journal Agroindustrial Technology Journal Jurnal Sistem Teknik Industri SIGMA TEKNIKA Jurnal Puan Indonesia Journal Of Human And Education (JAHE) JURNAL TEKNIK INDUSTRI Journal of Industrial System Engineering and Management JT-IBSI (Jurnal Teknik Ibnu Sina) Integrasi : Jurnal Ilmiah Teknik Industri Serambi Engineering JURNAL LIGA ILMU SERANTAU Cognitia : International Engineering Journal
Khoerun Nisa Safitri
Universitas Ibnu Sina
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Public Health Social Sciences Transportation Other

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PENINGKATAN KESADARAN SISWA TERHADAP HIGIENE, ERGONOMI, DAN KEAMANAN SIBER MALALUI SOSIALISASI DI SEKOLAH-SEKOLAH KOTA BATAM Wahyudi, Sendy; Ardiansyah, Rizky; Haekal Bayani , Ahda; Rahmatullah, Anurrafiq; Tilidia Devaga, Army; Nisa Safitri, Khoerun
PUAN INDONESIA Vol. 7 No. 1 (2025): Jurnal PUAN Indonesia Vol. 7 No. 1 Juli 2025
Publisher : ASOSIASI IDEBAHASA KEPRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37296/jpi.v7i1.434

Abstract

The digital outreach activity conducted by students of Universitas Ibnu Sina Batam at several secondary schools aimed to raise students' awareness of the importance of maintaining a clean learning environment, creating ergonomic classroom spaces, and understanding digital security threats that may disrupt learning. The main issue addressed was the low level of student literacy regarding healthy living practices and the risks of digital fraud. Through a technology-based educational approach, students delivered material interactively using visual presentations and conducted live simulations to demonstrate how to identify harmful messages and protect personal information. The methods used included face-to-face counseling, participatory discussions, and practical exercises to recognize suspicious messages resembling online scams. The results showed that students became more aware of personal and environmental hygiene, understood the need for classroom layouts that support comfort and safety, and demonstrated increased vigilance against the risk of data theft via digital platforms. The activity also encouraged students to actively participate in discussions and share experiences related to hygiene and cybersecurity in the school environment. It can be concluded that an integrated educational approach combining hygiene, ergonomics, and digital safety effectively provides new understanding for students and fosters critical thinking and responsibility in maintaining a healthy and secure learning atmosphere.
EFISIENSI RANTAI PASOK DALAM INDUSTRI ROSTER BETON: PERBANDINGAN METODE ECONOMIC ORDER QUALITY DAN JUST-IN-TIME Safitri, Khoerun Nisa; Fole, Asrul; Aini, Nurul
Jurnal Liga Ilmu Serantau Vol. 2 No. 2 (2025): Edisi Agustus - Jurnal Liga Ilmu Serantau
Publisher : LPPM Universitas Ibnu Sina

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36352/jlis.v2i2.1190

Abstract

This study aims to analyze supply chain efficiency in the concrete roster industry in Batam by comparing the Economic Order Quantity (EOQ) and Just-In-Time (JIT) methods with the conventional inventory approach. The main issue faced by the industry is the high total inventory cost due to suboptimal ordering frequency and significant storage expenses. The data used are actual production figures and raw material requirements throughout 2024. A quantitative approach was applied using EOQ and JIT calculations. The results show that the EOQ method generates an annual inventory cost of Rp7,595,000, which is significantly lower than that of the JIT method at Rp10,400,000 and the conventional method at Rp145,650,000. EOQ proves to be more efficient by optimizing order quantities and minimizing storage costs. In contrast, the JIT method effectively eliminates storage costs but increases ordering costs due to more frequent orders. This study recommends adopting the EOQ model as an efficient inventory management solution for medium-scale manufacturing industries. The findings are expected to serve as a reference for strategic decision-making in logistics and supply chain management.
Discrete Simulation Model Development for Enhancing the Efficiency of Seaweed Production Processes at PT. IHFIM Fole, Asrul; Safitri, Khoerun Nisa; Riska Iva Riana; Nurul Aini
Cognitia : International Engineering Journal Vol. 1 No. 2 (2025): Cognitia : International Engineering Journal
Publisher : Candela Edutech Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63288/ciej.v1i2.6

Abstract

This study focuses on improving the efficiency of seaweed production at PT. IHFIM through the development of a discrete event simulation model. The production system includes several main stages such as Pre-Treatment, Initial Rinse, Quality Check, Thermal Drying, Disinfection, and Final Blending. Field observation and actual production data were used to build the simulation model using ProModel software. Model verification was done through running simulations, and validation was conducted statistically using a t-test, confirming that the simulation outputs were consistent with actual conditions. The analysis identified two bottlenecks in the system: Pre-Treatment with 12.88% blocked time and Initial Rinse with 11.60% blocked time. To address these issues, two improvement scenarios were tested. Scenario 1 added an extra tank to the Pre-Treatment stage, which successfully reduced the blockage to 0%. Scenario 2 introduced additional buffer capacity at the Initial Rinse and Quality Check stages, resulting in a 4% reduction in blockage. The results show that increasing capacity at key points can improve material flow and reduce delays. This study concludes that discrete simulation is an effective method for identifying bottlenecks and evaluating operational improvements in agro-industrial production systems
Penerapan Workplace Stretching Exercise Guna Menghilangkan Nyeri Otot Pada Pekerja Di PT Gaspro Sentraco Parisma, Wan Intan; Sari, Chinta Yolanda; Irawati, Ice; Safitri, Khoerun Nisa
Journal Of Human And Education (JAHE) Vol. 4 No. 3 (2024): Journal of Human And Education
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jh.v4i3.1050

Abstract

Nyeri otot merupakan masalah umum di kalangan pekerja yang sering disebabkan oleh aktivitas statis dan postur kerja yang kurang ergonomis, yang berdampak negatif pada produktivitas dan kesejahteraan pekerja. Pengabdian masyarakat ini bertujuan untuk meningkatkan pengetahuan pekerja mengenai cara menghilangkan nyeri otot melalui penerapan Workplace Stretching Exercise. Sasaran pengabdian adalah 34 pekerja PT Gaspro Sentraco. Metode yang digunakan meliputi pengukuran gangguan muskuloskeletal dengan instrumen Nordic Body Map, penjelasan tujuan dan manfaat kegiatan, serta pemberian latihan peregangan otot di tempat kerja. Evaluasi dilakukan selama dua minggu untuk mengukur perubahan tingkat nyeri otot dengan kategori rendah, menengah, dan tinggi. Sebelum intervensi, 58,8% pekerja mengalami nyeri otot kategori tinggi, 29,4% kategori menengah, dan 11,8% kategori rendah. Setelah intervensi, hanya 14,7% pekerja yang masih berada di kategori tinggi, 35,3% di kategori menengah, dan 50% di kategori rendah. Kesimpulannya, penerapan latihan peregangan di tempat kerja efektif dalam mengurangi nyeri otot serta meningkatkan kenyamanan dan produktivitas pekerja. Hasil ini menekankan pentingnya integrasi program peregangan dalam rutinitas kerja sebagai langkah preventif dan intervensi untuk meningkatkan kesehatan pekerja.
Desain Ruangan dan Tata Letak Barang Kerja pada Warehouse Electric dan Instrument Menggunakan Metode Analisa System Kerja dan Ergonomi Safitri, Khoerun Nisa; 'Aini, Nurul; Syahputra , Anggi Pramana
Jurnal Liga Ilmu Serantau Vol. 1 No. 1 (2024): Edisi Februari - JLIS: Jurnal Liga Ilmu Serantau
Publisher : LPPM Universitas Ibnu Sina

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36352/jlis.v1i1.788

Abstract

This research aims to redesign and reorganize work stations in the Electric and Instrument Warehouse at XYZ Company using the Work System and Ergonomics Analysis Method. Several aspects that are focused on in this research include the actual work station design, work station layout design, sitting work station design, and qualitative visual displays. The analysis was carried out to overcome the problem of lack of space for movement and comfort when working caused by a non-optimal layout. In the proposed changes, researchers made adjustments to the layout of desks, cabinets or cupboards, computer equipment, shelves, added dividers and doors in the office, and increased the size of the work area. Apart from that, several chairs were also replaced to support a good work attitude. The redesign of the workstation is based on the principles of ergonomics by prioritizing effectiveness, comfort, safety, health and efficiency (ENASE). This adjustment is carried out by paying attention to anthropometric and ergonomic aspects in terms of layout, type and size of facilities.
Transforming Small-Scale Garment Production: Lean Manufacturing and VSM Strategies for Enhanced Productivity in Makassar's MSMEs Fole, Asrul; Safitri, Khoerun Nisa
Journal of Industrial System Engineering and Management Vol. 4 No. 1 (2025): Journal of Industrial System Engineering and Management (Edisi June)
Publisher : PT. SAFARI AMALIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56882/jisem.v4i1.41

Abstract

This research aims to examine the application of Lean Manufacturing and Value Stream Mapping (VSM) in enhancing productivity within micro, small, and medium enterprises (MSMEs) in the garment sector in Makassar. By focusing on identifying and reducing waste, this study analyzes cycle times and activity mapping to uncover bottlenecks that hinder operational efficiency. The analysis results indicate that the implementation of Lean principles can lead to significant improvements in production processes, including reductions in cycle time and waiting time. Furthermore, this research highlights the importance of eliminating non-value-added activities and integrating advanced technologies, such as automation and real-time tracking systems, to further enhance efficiency. These findings not only provide valuable insights for industry practitioners but also offer practical guidance for optimizing production processes. By adopting Lean strategies, garment MSMEs in Makassar can improve their competitiveness in an increasingly competitive market while contributing to regional economic development. This study is expected to serve as a reference for researchers, practitioners, and policymakers in efforts to create a more efficient and sustainable garment industry in Indonesia.
Integrating Digitalization in Supply Chain Performance Evaluation of the Zinc Industry through the Analytic Network Process (ANP) Fole, Asrul; Safitri, Khoerun Nisa; Aini, Nurul; Negara, Palmadi Putri Surya
Journal of Industrial System Engineering and Management Vol. 4 No. 2 (2025): Journal of Industrial System Engineering and Management (Edisi November)
Publisher : PT. SAFARI AMALIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56882/jisem.v4i2.55

Abstract

The zinc industry faces significant challenges in improving supply chain performance due to complex production, distribution, and quality control systems, as well as uneven digitalization that limits real-time monitoring and decision-making. This study develops a digitalization-based supply chain performance evaluation model using the Analytic Network Process (ANP) to determine priority weights of key performance indicators (KPIs). Data were collected from 15 industry experts with 15–20 years of experience. The analysis shows that Reliability (0.32) and Cost Efficiency (0.26) are the most influential dimensions, followed by Responsiveness (0.19), Flexibility (0.13), and Asset Management (0.10). The highest-priority KPIs are On-Time Delivery (0.0518) and Order Fulfillment Rate (0.0506), while Capacity Utilization Ratio (0.0033) has the lowest weight. Integrating digital systems such as ERP, IoT, and MES enhances real-time visibility, data accuracy, and responsiveness—reducing production delays by 18%, improving logistics cost efficiency by 12%, and increasing delivery reliability by 20%. The ANP-based model thus provides an objective, data-driven foundation for continuous performance improvement and strategic decision-making.
EVALUASI FAKTOR-FAKTOR YANG MEMPENGARUHI KINERJA GUDANG: PENDEKATAN STRUCTURAL EQUATION MODELING 'Aini, Nurul; Safitri, Khoerun Nisa; Fole, Asrul
SIGMA TEKNIKA Vol 8, No 2 (2025): SIGMATEKNIKA, VOL. 8, N0. 2, NOVEMBER 2025
Publisher : Fakultas Teknik, Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penelitian ini bertujuan untuk menganalisis hubungan antara variabel antecedents (Cost, Quality, Time, dan Productivity) terhadap kinerja gudang (Warehouse Performance) dengan menggunakan pendekatan Structural Equation Modeling (SEM). Metode estimasi yang digunakan adalah Maximum Likelihood (ML), yang sesuai untuk data dengan distribusi tidak normal. Uji kecocokan model dilakukan menggunakan beberapa kriteria goodness of fit, seperti Chi Square, GFI, AGFI, dan RMSEA. Hasil menunjukkan nilai Chi Square sebesar 92,897 dengan nilai probabilitas p = 0,058, yang mengindikasikan bahwa model dinyatakan fit. Namun, pengujian normalitas menunjukkan data tidak berdistribusi normal secara multivariat, sehingga dilakukan evaluasi outlier dan jumlah sampel berkurang dari 269 menjadi 196. Hasil analisis akhir menunjukkan bahwa tidak semua variabel antecedents memiliki pengaruh signifikan terhadap variabel konsequents, dengan nilai koefisien determinasi (R²) kurang dari 0,5. Temuan ini menunjukkan bahwa model masih memiliki keterbatasan dalam menjelaskan kinerja gudang secara menyeluruh. Oleh karena itu, penelitian ini diharapkan dapat menjadi referensi untuk pengembangan model yang lebih komprehensif pada penelitian selanjutnya, guna meningkatkan efektivitas manajemen gudang di masa depan.
Co-Authors 'Aini, Nurul Aini Nurul Alisyahbana, Takdir Almuhajirin, Yamin Ardiansyah, Rizky Asrul Fole Chinta Yolanda Sari Haekal Bayani , Ahda Ice Irawati Januar Kulsaputro Kusrini, Elisa Mujaddid Musdalifah Negara, Palmadi Putri Surya Nugraha, Widi Nugraha Nur Ihwan Safutra Nurul Aini PARISMA, WAN INTAN Putri, Meylia Vivi Putri, Meylia Vivi Putri Rahmatullah, Anurrafiq Riana, Riska Iva Rizki Febriani Syahputra , Anggi Pramana Tilidia Devaga, Army Wahyudi, Sendy Widi Astutik