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Muhammad Nizar
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muhammad.nizar@serambimekkah.ac.id
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serambiengineering@serambimekkah.ac.id
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Fakultas Teknik, Universitas Serambi Mekkah Jalan Unmuha, Batoh, Telp. (0651) 26160 dan (0651) 22471 Banda Aceh, Indonesia
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INDONESIA
Serambi Engineering
Published by Universitas Serambi Mekkah Aceh
ISSN : 25283561     EISSN : 25411934     DOI : http://doi.org/10.32672/jse
Core Subject : Science, Social, Engineering,
Earth & Planetary Sciences Energy Engineering Environmental Science Industrial & Manufacturing Engineering
The Serambi Engineering journal is published as a medium to distribute information on research results in engineering and science, both carried out by lecturers from the Serambi Mekkah University and other parties. Published research can be in the form of field research or laboratory research as well as a literature review. This journal is published four times yearly, namely January, April, July, and October. Editors accept manuscripts from lecturers, researchers, students, and practitioners that have never been published by any other media. Manuscripts submitted will be evaluated and edited for uniformity of format, terms, and other procedures. The topics that can be published but are not limited to are: Water & Waste Water Quality Solid Waste Management Air Pollution Control Environmental Health Environmental Modeling Environmental Management Water Resources Management Occupational Health & Safety Ecology Renewable Energy Circular Economics Sustainable Development Climate Change Mitigation and Adaptation Climate Change and Water Resources Adaptation Urban Planning Informatics Computer and Technology Industrial Engineering Other .
Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Teknik Lingkungan
Articles 964 Documents
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Analisis Peramalan Kebutuhan dan Safety Stock Material Plat Dalam Pembuatan Kapal Pada PT. XYZ Menggunakan Metode Time Series Ahyaliya, Marsya Laila; Tranggono
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

A shipyard is an industry that designs, builds and repairs ships. The shipbuilding process at a shipyard involves a number of complex stages, from design to launch. If there is too much stock, the company will incur high storage costs. Conversely, if the stock is too low, the production process will be hampered by delays in material delivery, which can ultimately affect the ship's launch schedule. To overcome these problems, PT XYZ needs to implement a better inventory control system. This system aims to ensure the availability of sufficient plate materials to meet production requirements, including forecasting demand, determining safety stock levels and setting reorder points. The method used in this study is a time series consisting of three methods, namely single moving average, weighted moving average and single exponential smoothing using POM-QM software. Based on the results of the study, the feasible method to be applied to PT XYZ forecasting is a moving average with a MAD value of 5,444, MSE of 46,679, MAPE of 6,695% and forecasting results of 85 pcs per month. Based on the calculation results, it is recommended to reorder the sheet material when the stock reaches the reorder point of 271 pcs. This figure takes into account the safety stock of 18 pcs.
Analisis Kualitas Udara Ambien Parameter SO2 dan NO2 dengan Metode Passive Sampler di Kabupaten Bojonegoro Adelia Dwi Kusuma Ningrum; Aussie Amalia
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Ambient air quality is a crucial factor affecting human health and the environment. This study aims to analyse the air quality in Bojonegoro Regency through monitoring using the passive sampler method. Monitoring was conducted in four areas: industrial, office, residential and traffic zones. The measured parameters included the concentrations of nitrogen dioxide (NO₂) and sulphur dioxide (SO₂), which were then calculated to determine the Air Quality Index (AQI). The analysis results showed that the average NO₂ concentration in the first phase was 6 µg/m³, rising to 9.25 µg/m³ in the second phase. Meanwhile, the average SO₂ concentration was 11.25 µg/m³ in the first phase and 11.5 µg/m³ in the second phase. The Air Quality Index showed a decrease from 85.784 to 83.160, but remained in the "Good" category. The decrease in the AQI was influenced by increased human activities and environmental conditions such as vehicle and industrial emissions. To improve the AQI to the "Very Good" category, recommended measures include public education, energy efficiency, application of clean technologies, forest protection, shift to public transport and improvement of monitoring systems.
Pengaruh Kualitas Aplikasi Ruangguru CAMP Terhadap Kepuasan Mahasiswa Study Independent Product Management (Studi Kasus: Efektivitas dan Pengalaman Pengguna) Laily, Nisfal; Tranggono
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Ruangguru CAMP is a joint programme between Ruangguru and Kampus Merdeka. This programme is in the form of online course learning. The purpose of this study is to determine the extent to which application quality affects the level of student satisfaction in the Independent Product Management study programme. The data collection method used in this study is a questionnaire to collect sample data from 77 students of Ruangguru CAMP Independent Product Management Study Programme. After the data is collected, the data is analysed using the multiple linear regression method to determine whether there is a significant relationship between application quality and user satisfaction. After analysing the data, the results showed that application quality has a positive impact on user satisfaction with a contribution coefficient of 71.4%. Therefore, developers should always optimise application performance to reduce the potential for crashes or other technical problems that may affect the comfort or overall user experience.
Analisis Risiko Kecelakaan Kerja Menggunakan Metode HIRADC Pada Gudang P.IV Divisi Gudang dan Pengantongan PT XYZ Prashodang, Tryandika Rizkat; Nugraha, Isna
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Indonesia is a country that considers the agricultural sector as one of its economic drivers, with fertilizers being a vital material for agricultural activities. PT XYZ is a company engaged in fertilizer production with numerous fertilizer storage warehouses. The main activities in the warehouses include bagging and shipping out, which are not exempt from the risk of workplace accidents. These workplace accidents can be analyzed using the HIRADC method, which aims to identify hazards, assess risks, and implement appropriate risk control measures in Warehouse P. IV. The study concluded that there are six main activities and identified risks related to ergonomic, environmental, chemical, and physical factors. The results revealed that no hazards fell into the low-risk category, 15 hazards were categorized as medium risk, 5 hazards were categorized as high risk, and no hazards were classified as very high risk. In this study, the control efforts implemented focused on three aspects: engineering controls, administrative controls, and personal protective equipment (PPE).
Penerapan Metode Min-Max Stock untuk Efisiensi Persediaan Jumbo Bag pada PT. XYZ Priyatna Septedi Inrianto; Rusindiyanto
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Efficiently managed inventory is a key element in supporting smooth operations and cost control in a company. This research aims to analyse the application of the Min-Max Stock method in the management of jumbo bag inventory at PT. XYZ, evaluate its effectiveness in reducing the risk of overstocking and out-of-stocking, and provide recommendations to improve the efficiency of inventory management. The research methodology used is descriptive quantitative with data collected from records of jumbo bag usage and purchases over a period of time. Calculations are carried out to determine safety stock, minimum stock, maximum stock and reorder point. The research results show that the application of the min-max stock method is able to optimise inventory management. With a safety stock value of 216 shares, minimum stock of 520 shares, maximum stock of 824 shares and reorder point of 520 shares. This research concludes that the Min-Max Stock method is an effective tool for managing jumbo bag inventory. Further research is recommended to explore the integration of these methods with digital technology to improve the accuracy and efficiency of inventory management systems.
Analisis Beban Kerja Fisik Menggunakan Metode Cardiovaskular Load dan Konsumsi Energi pada Karyawan Pemadam Kebakaran di PT X Zaini, Mohammad; Dira Ernawati
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The high physical workload of firefighters has the potential to cause fatigue and reduce performance, compromising safety and productivity. Given the importance of accurate measurement of physical workload, the aim of this study was to analyse physical workload using the Cardiovascular Load (CVL) method and energy expenditure to assess the level of physical intensity exerted by the body during work activities among firefighters using direct observation and pulse measurement during the working day, and estimation of energy expenditure based on recorded physical activity. The research results show that the physical workload of the employees is rather low, with an average CVL of 22.3%, indicating that there is no classification of fatigue. Energy consumption also has an average energy consumption value of 1.51, which shows that their energy consumption is in the light category. On the basis of the results of this analysis, PT also carries out regular health monitoring of physical conditions with the aim of keeping employees in optimal condition. It is hoped that this research will provide a basis for companies to develop policies to manage the physical workload of firefighters.
Analisis Beban Kerja Mental Petugas Pemadam Kebakaran di PT X Menggunakan NASA-TLX dan Usulan Perbaikan Berbasis HIRADC Sirli, Jeannica Salbillah Putri; Akmal Suryadi
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Mengatasi beban kerja mental petugas pemadam kebakaran yang tinggi membutuhkan pendekatan yang multi-aspek dan terintegrasi. Studi ini bertujuan demi menganalisa beban kerja mental petugas pemadam kebakaran pada PT X menggunakan metode NASA-TLX dan menyusun usulan perbaikan berbasis HIRADC. Penelitian dilakukan melalui pengisian kuesioner NASA-TLX dan wawancara dengan petugas pemadam kebakaran, serta observasi langsung di lapangan. Data ini berbentuk kualitatif dan kuantitatif yang diolah untuk mengidentifikasi penyebab beban kerja mental serta tingkat risikonya. Temuan studi mengungkapkan bahwasanya beban kerja mental tergolong tinggi hingga sangat tinggi, yang disebabkan oleh tuntutan mental, fisik yang berat, serta tekanan waktu dalam situasi darurat. Usulan perbaikan diberikan berdasarkan hasil analisis risiko termasuk pembaruan dan penyederhanaan SOP, pelatihan intensif, serta pengadaan alat bantu kerja yang lebih efektif. Implementasi perbaikan ini diharapkan dapat menurunkan beban kerja mental secara signifikan dan meningkatkan efisiensi kerja petugas. Usulan ini harus dikembangkan dan dievaluasi secara berkelanjutan agar dapat menjadi acuan dalam perbaikan sistem kerja dan pengelolaan risiko di masa mendatang.
Penerapan Konsep Lean Warehousing untuk Minimasi Pemborosan Gudang Suku Cadang dengan Metode VSM Pada PT ABC Adjietama, Mochammad Novrizal; Nur Rahmawati
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

PT ABC is a company operating in the fertiliser industry and plays a vital role in supporting the national agricultural sector. One of the key elements in maintaining smooth operations is warehouse management, which encompasses the processes of receiving, storing and distributing materials. Efficient warehouse management is essential to ensure the smooth flow of materials, minimise waste and support overall operational efficiency. This study aims to analyse and identify waste in PT ABC's warehouse using the Lean Warehousing approach and the Value Stream Mapping (VSM) method. Initial analysis shows that the Process Cycle Efficiency (PCE) value of 68.92% indicates potential waste within the warehouse activities. The main sources of waste were identified in activities such as unloading goods, reconciling item data with the system and preparing administrative documents. Improvement alternatives were implemented using the 5S principles, including sorting (seiri), reorganising the warehouse layout (seiton), routine cleaning (seiso), standardising SOPs (seiketsu) and promoting a culture of discipline (shitsuke). With these improvements, the estimated PCE increased to 80.11%, reflecting an efficiency improvement of 11.19%. This study shows that the implementation of Lean Warehousing is effective in optimising warehouse management at PT ABC.
Perencanaan Sumur Resapan Sebagai Upaya Pengelolaan Air Larian di Perumahan Teduh Katapang Farid, Ahmad; Eka Wardhani
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Teduh Katapang Residence in Bandung Regency was built on agricultural land, resulting in a reduction of the water catchment area. Runoff water management in Teduh Katapang Housing is a challenge due to land conversion from rice fields to housing, which increases surface runoff and flood risk. This research aims to design infiltration ponds to reduce storm water runoff. The calculation method of infiltration ponds is based on Indonesian National Standard 2398-2017 and the site test is based on Indonesian National Standard 8456:2017. The calculation results show the effectiveness of infiltration ponds in reducing runoff discharge, with the service area divided by four and then averaged and obtained the results of 16,590 (m³/h) runoff discharge, 16,590 (m³/h) applied discharge 100% effectiveness, with a total requirement of 15 infiltration well units.
Analisis Optimalisasi Sistem Pendistribusian Air Bersih PDAM Tirta Jaya Kabupaten Pamekasan (Sumber Trasak) Raihana Azahra Rusadi Putri; Dira Ernawati
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

This study aims to analyse the optimisation of the clean water distribution system by PDAM Tirta Jaya in Pamekasan Regency (Sumber Trasak) by examining the effects of water pressure, distribution service, water quality and water quantity on customer satisfaction. The results show that these four variables contribute only 7.6% to customer satisfaction, while 92.4% is influenced by other factors. The correlations between these variables and customer satisfaction are weak, with Pearson correlation values below 0.5. Furthermore, regression analysis shows that the relationships are insignificant, except for water quality, which has a significant but weak correlation. Based on these results, optimising the clean water distribution system requires a more comprehensive approach that takes into account other factors, such as improving customer service and improving the water distribution infrastructure.

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