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PUSAT RISET DAN INOVASI NASIONAL UNIVERSITAS SAINS DAN TEKNOLOGI KOMPUTER Alamat: Jl. Majapahit No.304, Palebon, Kec. Pedurungan, Kota Semarang, Jawa Tengah 50199
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Jurnal Riset Rumpun Ilmu Teknik (JURRITEK)
Published by Pusat Riset dan Inovasi Nasional
ISSN : 28290178     EISSN : 2829016X     DOI : 10.55606
Core Subject : Science, Engineering,
Civil Engineering, Building, Construction & Architecture Computer Science & IT
Sub Rumpun TEKNIK SIPIL DAN PERENCANAAN TATA RUANG 1. Teknik Sipil 2. Teknik Lingkungan 3. Rancang Kota 4. Perencanaan Wilayah dan Kota 5. Teknik Pengairan 6. Teknik Arsitektur 7. Teknologi Alat Berat 8. Transportasi 9. Bidang Teknik Sipil Lain Yang Belum Tercantum Sub Rumpun ILMU KETEKNIKAN INDUSTRI 1. Teknik Mesin (dan Ilmu Permesinan Lain) 2. Teknik Produksi (dan Atau Manufakturing) 3. Teknik Kimia 4. Teknik (Industri) Farmasi 5. Teknik Industri 6. Penerbangan/Aeronotika dan Astronotika 7. Teknik Pertekstilan (Tekstil) 8. Teknik Refrigerasi 9. Bioteknologi Dalam Industri 10. Teknik Nuklir (dan Atau Ilmu Nuklir Lain) 11. Teknik Fisika 12. Teknik Enerji 13. Penginderaan Jauh 14. Teknik Material (Ilmu Bahan) 15. Bidang Keteknikan Industri Lain Yang Belum Tercantum Sub Rumpun TEKNIK ELEKTRO DAN INFORMATIKA 1. Teknik Elektro 2. Teknik Tenaga Elektrik 3. Teknik Telekomunikasi 4. Teknik Elektronika 5. Teknik Kendali (Atau Instrumentasi dan Kontrol) 6. Teknik Biomedika 7. Teknik Komputer 8. Teknik Informatika 9. Ilmu Komputer 10. Sistem Informasi 11. Teknologi Informasi 12. Teknik Perangkat Lunak 13 Teknik Mekatronika 14. Bidang Teknik Elektro dan Informatika Lain Yang Belum Tercantum Sub TEKNOLOGI KEBUMIAN 1. Teknik Panas Bumi 2. Teknik Geofisika 3. Teknik Pertambangan (Rekayasa Pertambangan) 4. Teknik Perminyakan (Perminyakan) 5. Teknik Geologi 6. Teknik Geodesi 7. Teknik Geomatika 8. Bidang Teknologi Kebumian Lain Yang Belum Tercantum Sub Rumpun ILMU PERKAPALAN 1. Teknik Perkapalan 2. Teknik Permesinan Kapal 3. Teknik Sistem Perkapalan 4. Teknik Kelautan dan Ilmu Kelautan 5. Oceanograpi (Oceanologi) 6. Bidang Perkapalan Lain Yang Belum Tercantum
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 256 Documents
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Analisis Pengendalian Kualitas Proses Produksi Percetakan dengan Pendekatan Metode Lean Six-Sigma untuk Efisiensi Muhammad Andi Rivaldi; Wiku Larutama; Pebi Yuda Pratama
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 4 No. 3 (2025): Desember : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v4i3.6385

Abstract

This study aims to analyze and improve the quality control of packaging printing production at PT XYZ by applying the Lean Six Sigma methodology. Lean Six Sigma combines waste reduction principles with statistical quality control to achieve operational excellence. The research identifies major production challenges, including high defect rates, overproduction, and ineffective inventory management, all of which contribute to increased costs and reduced efficiency. The DMAIC framework—Define, Measure, Analyze, Improve, and Control—was employed to systematically address these issues. During the Define and Measure phases, types of waste were identified and defect rates were calculated using Defects Per Million Opportunities (DPMO). In the Analyze phase, root causes were examined using a Fishbone (Ishikawa) diagram, highlighting factors related to manpower, materials, machines, and methods. The analysis revealed a sigma level of 3.2, indicating a moderate level of process quality and substantial room for improvement. To address the identified issues, several improvement strategies were proposed. These include implementing a Just-In-Time (JIT) system to reduce inventory waste, adopting the First-In-First-Out (FIFO) inventory method for better material rotation, and conducting targeted technical training for operators to minimize human error. In the Control phase, the study suggests process standardization, routine inspections, and continuous monitoring as key practices to ensure that improvements are sustained over time. The findings and recommendations from this study are expected to contribute to better quality control, reduced operational waste, and enhanced productivity in the packaging printing process. Ultimately, this approach aims to strengthen PT XYZ’s competitiveness in the printing industry by fostering a culture of continuous improvement and quality excellence.
Perencanaan Pengiriman Mandiri pada Industri Hilir Teh Walini berdasarkan Bangkitan Pergerakan, Sebaran Pergerakan dan Biaya Operasional Kendaraan Khofifah Nurazizah; Juang Akbardin; Dwi Novi Wulansari
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 4 No. 3 (2025): Desember : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v4i3.6466

Abstract

This study is motivated by the downstream Teh Walini industry’s reliance on third-party logistics (3PL) services for product distribution, which restricts the company’s control over several key aspects, including logistics costs, delivery speed, routing efficiency, and product handling quality. The primary objective of this research is to analyze and compare distribution costs between outsourced logistics and self-managed delivery, and to evaluate the potential cost efficiency of an independently operated shipping system. A descriptive comparative quantitative method is employed, incorporating movement generation analysis, distribution spread mapping, and Vehicle Operating Cost (VOC) calculations to estimate the cost implications of self-shipping. Data were obtained through company documentation and analyzed using multiple linear regression involving six major distribution points. The results reveal that shipment volume significantly influences movement generation, with Waingapu, Makassar, and Padang identified as the dominant distribution destinations. The cost comparison analysis demonstrates that self-managed delivery is more cost-effective than third-party logistics services, making it a more viable long-term option. These findings suggest that transitioning to a self-delivery system could improve cost control and logistical efficiency for the company. However, this strategy should be implemented gradually, supported by regular updates on operational cost data and proactive management of external factors that could impact distribution performance. The study concludes by recommending broader coverage and the inclusion of additional relevant variables in future research to further validate and enhance decision-making related to distribution strategies. A well-informed shift toward internal logistics could ultimately contribute to greater competitiveness and sustainability in the company’s distribution operations
Analisis Kelayakan Usaha Bawang Merah Gapoktan Karya Makmur Desa Pasir Kecamatan Mijen Kabupaten Demak Ahmad Naja Abadi; Dwi Retna Sulistyawati; Gunawan Mohammad
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 4 No. 3 (2025): Desember : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v4i3.6482

Abstract

This study also highlights the importance of education and training for farmers to improve their technical skills in farming and managing their farms. Training in the use of modern agricultural technologies, such as automated fertilizing tools and efficient irrigation systems, can help farmers reduce production costs and increase yields. Furthermore, training in digital marketing can help farmers market their products more effectively through online platforms, reducing reliance on intermediaries and increasing profit margins. Furthermore, it is crucial for the government to provide support in the form of extension services and easy access to business capital. More accessible capital will enable farmers to invest in more efficient equipment and more environmentally friendly organic fertilizers. Targeted microcredit distribution to farmer groups can also accelerate the adoption of new, more productive agricultural technologies. The adoption of sustainable and environmentally friendly agricultural practices should be a long-term focus to ensure the registration of shallot farming businesses. Farmers need to be incentivized to use organic fertilizers and natural pesticides that are safer for the soil and air. Furthermore, the implementation of integrated and environmentally friendly farming systems such as agroforestry can also be an alternative to increase agricultural yields without damaging the environment. With improvements in education, training, access to capital, and the adoption of more efficient technology, shallot farming in Pasir Village can develop better and become more sustainable in the future. Furthermore, collaboration between farmer groups and local research institutions and universities can also be key to introducing new agricultural innovations.
Analisis Optimasi Rute Distribusi Gas LPG 3 Kg Menggunakan Metode Capacitated Vehicle Routing Problem (CVRP) pada PT Pangkal Rizqi Abadi Alingga Anisful Laili; Dwi Retna Sulistyawati; Gunawan Mohammad
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 4 No. 3 (2025): Desember : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v4i3.6483

Abstract

Distribution is an important aspect that affects the operational efficiency of a company, especially in terms of goods delivery. This study aims to develop an optimization model for LPG gas distribution routes using Excel Solver based on geographic coordinate conversion. In this study, the method used includes converting geographic coordinates from decimal to Degree-Minute-Second (DMS) format, followed by conversion to kilometers to form a more accurate distance matrix. The optimization model was built using the Capacitated Vehicle Routing Problem (CVRP) approach, which takes into account vehicle capacity constraints (a maximum of 560 cylinders per truck) and the limited number of available fleets, which is only one truck. The results show that coordinate conversion produces high accuracy in calculating distances between distribution locations. By using Excel Solver, the optimization solution successfully minimizes the total distance traveled compared to the conventional route, where distribution is carried out more evenly to 57 scattered LPG base locations. The addition of Solver Parameters Evolutionary and All Different constraints proved effective in avoiding duplication of visits and producing optimal distribution routes. This solution not only improves distribution time and cost efficiency, but also improves service to customers by reducing delivery delays. The success of this optimization model is expected to be implemented by other distribution companies to improve their operational performance. This study also highlights the importance of selecting the right software to aid the distribution optimization process. Excel Solver, despite its simplicity, proved highly effective in solving complex distribution routing problems, especially when combined with coordinate conversion techniques that yield more accurate distances. Furthermore, the application of the CVRP method enabled more efficient decision-making in determining distribution routes, taking into account vehicle capacity and fleet limitations.
Evaluasi Kinerja Simpang Tak Bersinyal Dengan Pulau Lalu Lintas di Kota Pontianak: Studi Kasus : Persimpangan Jl. Tebu-Jl. Tabrani Ahmad Muhammad Dzulfikar Andika Satriatama; Elsa Tri Mukti; S. Nurlaily Kadarini
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 4 No. 3 (2025): Desember : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v4i3.6546

Abstract

The increase in traffic volume in urban areas often triggers various problems, especially at Road intersection points that have a high level of interaction between vehicles. One of the locations that experience these problems is the intersection with the island of traffic without signal on Jl. Tebu-Jl. Tabrani Ahmad, City Of Pontianak. This study aims to analyze the performance of the intersection in the existing condition and project its performance in the next five years (2030), as well as formulate alternative treatment that can improve the smoothness of traffic. The analysis method refers to Indonesian road capacity guidelines (PKJI) 2023 and modeling using software PTV VISSIM. The data collected include intersection geometry, traffic volume, and vehicle speed. Traffic volumes were obtained through CCTV recordings for three consecutive days, then processed and presented in the form of tables and graphs for easy interpretation. The results of the existing condition analysis showed that the degree of saturation (DS) reached 0.407 with an average delay of 9.539 seconds (Level of Service/LOS B) based on PKJI, while VISSIM simulation resulted in a delay of 12.54 seconds (LOS B). The five-year projection (2030) shows an increase in DS to 0.878 with a delay of 15.177 seconds (LOS C) from PKJI, and 23.35 seconds (LOS C) from VISSIM, which indicates a decrease in Junction performance as traffic grows. Two handling alternatives were analyzed, namely the construction of roundabouts and the implementation of traffic flow management. VISSIM simulation shows that the roundabout can reduce the delay to 14.31 seconds with a queue length of 20.34 m (LOS B), while the flow management produces a delay of 11.81 seconds with a queue of 13.14 m (LOS B). This result confirms that both alternatives are able to improve the performance of the intersection compared to the projected condition without handling, so that it can be a technical recommendation for urban traffic planning in Pontianak.
Analisis Kerusakan Perkerasan Jalan dengan Metode PCI (Pavement Condition Index): Studi Kasus : Jalan Sugio - Tlanak Heni Purwati Ningsih; Lily Oktavia; Miftahur Rohman
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 4 No. 3 (2025): Desember : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v4i3.6558

Abstract

The Sugio–Tlanak Road Section, Sugio District, Lamongan Regency, is a vital transportation infrastructure as it connects interregional activities, both in economic, social, and community mobility aspects. This road is the main route used by various types of vehicles, from light vehicles to heavy vehicles with quite high traffic intensity. This condition has a significant impact on the quality of the road pavement, as indicated by the presence of various types of damage at several points, such as cracks, potholes, and road surface deformation. Therefore, a comprehensive evaluation is needed to determine the level of road damage as a basis for consideration in planning maintenance and repairs. This study uses two assessment methods, namely the Bina Marga method and the Pavement Condition Index (PCI). The Bina Marga method assesses road conditions based on the Surface Distress Index (SDI) value obtained from direct identification in the field. The evaluation results show that the road condition on the Sugio–Tlanak section is classified as severely damaged at 60%, moderately damaged at 30%, and good condition at only 10%. Meanwhile, the PCI method provides results in the form of more detailed quantitative values. The analysis results obtained an average PCI score of 58.6, which is included in the Fair category. A comparison of the two methods shows that the Bina Marga method has advantages in terms of speed and ease of implementation, but its assessment is relatively subjective. In contrast, the PCI method provides more accurate and measurable results because it uses a quantitative approach with clear damage condition parameters. Therefore, although the Bina Marga method can still be used for rapid assessments in the field, the PCI method is more recommended as a basis for technical decision-making in planning road maintenance and quality improvement programs.
Analisis Modal dan Modifikasi Struktur Pompa Closed Drain 510-P9002 untuk Mitigasi Getaran di Lapangan Jambaran Tiung Biru Achmad Walid; Irwanda Yuni Pungkiarto; Mohammad Rizanto Juliarsyah; Khoirul Anwar
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 4 No. 3 (2025): Desember : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v4i3.6575

Abstract

This study presents a modal analysis of Pertamina EP Cepu’s closed drain pump 510-P9002, which operates in the condensate–water treatment unit of the Jambaran Tiung Biru field. Field vibration measurements conducted in August 2024 indicated a fundamental frequency of 25 Hz, corresponding to 1×RPM of the driving motor, with maximum amplitudes reaching 13.46 mm/s. Such excessive vibration poses risks of mechanical damage, reduced equipment service life, and potential operational failure. To address this issue, finite element analysis (FEA) was employed to examine the dynamic response of the pump, determine its natural frequencies, and identify possible resonance conditions. A CAD model of the pump–vessel assembly was developed, meshed, and analyzed under actual boundary conditions. The results showed several natural frequencies ranging between 23.16 and 26.65 Hz, which are close to the excitation frequency, suggesting a very high likelihood of resonance. Various structural modifications were then evaluated, including a half casing and two types of full casings. Among these, the full casing B design provided additional stiffness in the motor support area; however, none of the modifications effectively reduced vibration within the internal components. Based on these findings, the study recommends the implementation of a dynamic vibration absorber (DVA) tuned to the excitation frequency, along with the redesign of structural components to shift natural frequencies away from operating excitation. These solutions are expected to improve operational stability, extend equipment lifespan, and enhance overall system reliability. The outcomes of this research provide important insights for managing vibration issues in pump systems operating under similar conditions, particularly in the oil and gas industry where continuous, stable operation is critical.
Integrasi Metode Hybrid Recommendation dan Random Forest Regression untuk Optimasi Prediksi Durasi Menginap pada Sistem Pemesanan Kos Berbasis Web Mufti Ari Bianto; Hanif Azhar Ramadhan; Ardian Hudi Ramadhani; Tsalits Wildan Hamid
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 4 No. 3 (2025): Desember : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v4i3.6591

Abstract

This study proposes the integration of a Hybrid Recommendation method (combining Content-Based and Collaborative Filtering) with Random Forest Regression (RFR) to improve the accuracy of stay duration prediction in web-based boarding house booking systems. The main issue in online boarding booking systems is the inaccuracy of predicting user stay duration, affecting room allocation efficiency and customer satisfaction. The dataset was sourced from the hotel sector due to its attribute similarities and data validity. The research process includes data preprocessing (missing value imputation, normalization, and one-hot encoding), temporal and contextual feature engineering, hybrid recommendation system construction with CBF and CF score weighting, and RFR model training optimized through Grid Search and 10-fold cross-validation. Evaluation was conducted using MAE, RMSE, R² metrics, as well as recommendation metrics such as Precision@5, Recall@5, and Mean Reciprocal Rank (MRR). Results show that this integrated model achieved an R² of 0.7239 and an MAE of 1.0537 days, as well as a Precision@5 of 0.9636. This integration proves effective in improving prediction accuracy and recommendation relevance and contributes to the development of AI-based intelligent systems in the accommodation domain.
Pengaruh Rasio Hydroxyapatite–Tricalcium Phosphate pada Lapisan PEO terhadap Stabilitas Korosi Paduan Mg-AZ31B untuk Implan Biomedis Nadira Ghina Azzahra; Muhammad Ridwan
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 4 No. 3 (2025): Desember : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v4i3.6637

Abstract

The magnesium alloy AZ31B is increasingly used in biomedical applications, particularly as an implant material, due to its relatively low aluminum content and mechanical properties that closely resemble those of bone. Additionally, AZ31B exhibits corrosion resistance that is suitable for biological environments. These properties make it a promising material for bone implants. However, one of the main challenges in using magnesium is its high degradation rate in the body, which can affect the stability and function of the implant. Therefore, surface modification is necessary to control the degradation rate and enhance the material's durability. One effective method to reduce the corrosion rate of AZ31B is the Plasma Electrolytic Oxidation (PEO) technique. PEO can form a hard, protective oxide layer on the surface of the metal, which helps improve its corrosion resistance. This study aims to explore the effect of the mass composition of hydroxyapatite (HAp) and tricalcium phosphate (TCP) on the PEO coating formed on the AZ31B substrate. The compositions used in this study were 70%:30%, 50%:50%, 40%:60%, and 60%:40%, with an electrolyte solution containing Na₂SiO₃ (2.5 g/L) and KOH (2 g/L). Corrosion characteristics of the coating were evaluated using two methods: weight loss and polarization tests. The results showed that the 70%:30% HAp:TCP composition provided the most optimal results. The polarization test recorded a corrosion rate of 0.22 mpy, while the weight loss test showed a corrosion rate of 0.29 mpy. These findings indicate that the PEO coating with the 70%:30% HAp:TCP composition effectively reduces the corrosion rate of AZ31B, enhancing its potential for biomedical implant applications, particularly in environments where corrosion resistance is crucial for long-term performance in the body.
Otomasi Pengaturan Suhu Water Heater Menggunakan Mikrokontroller dengan Media Paraffin Wax Elsa Maulinda Savana; Henna Nurdiansari; Vigih Hery Kristanto
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 4 No. 3 (2025): Desember : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v4i3.6638

Abstract

Water heating systems on ships play a crucial role in supporting crew comfort and operations. However, conventional systems generally operate continuously without automatic control, resulting in energy waste and high operational costs. This situation drives the need for innovation in more efficient and environmentally friendly water heater designs. This research aims to design and implement an automated water heater temperature control system based on an ESP32 microcontroller with on/off control and the use of paraffin wax as a latent heat storage medium. This design is expected to improve energy efficiency while reducing the operational costs of water heaters on ships. The research methodology includes system design, hardware assembly, and performance testing, both static and dynamic. Testing was conducted to evaluate temperature stability and energy efficiency in system conditions with and without the use of paraffin wax. The results showed that paraffin wax improved water temperature stability while reducing the frequency of heater activation. In a 24-hour test, the system without paraffin wax recorded a heater operating time of 15 hours, consuming 8.85 kWh of electricity and costing Rp11,965.20. In contrast, the Paraffin Wax system only requires 10 hours of heater operation, consumes 5.90 kWh, and costs Rp7,976.80. This demonstrates energy savings of 2.95 kWh and a cost efficiency of up to 58%. Therefore, the ESP32-based water heater automation system and heat storage using Paraffin Wax are proven to be more energy-efficient, cost-effective, and have the potential to be an innovative and environmentally friendly solution for ship operational needs.

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