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Journal of Research and Technology
Published by Universitas NU Sidoarjo
ISSN : 24605972     EISSN : 24776165     DOI : -
Core Subject : Social, Engineering,
Chemical Engineering, Chemistry & Bioengineering Engineering Environmental Science Industrial & Manufacturing Engineering
Journal of Research and Technology published since 2015 contains a collection of a selected articles from the results of research and study of literature which is relevant to industrial , chemical, and environment engineering. Target readers of the Journal of Research and Technology are scientists, academics, and practitioners from various fields of industry.
Arjuna Subject : -
Articles 454 Documents
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Kano Method: Development of Multi-Function Walker Product Attributes Marodiyah, Inggit; Putra, Boy Isma; Akbar, Ali; Jakaria, Ribangun Bamban
Journal of Research and Technology Vol. 10 No. 2 (2024): JRT Volume 10 No 2 Des 2024
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v10i2.1429

Abstract

Sensory and motor disorders experienced by a person can reduce the ability to walk. The triggers for these disorders vary, including age factors. Older adults who are at high risk have limitations in their daily activities. Therefore, they must improve their walking ability using rehabilitation aids (walkers). This study aims to design a multi-function walker that can work optimally in older people. The urgency of this study is that the types of walkers on the market are still limited, so they need to be developed into a multifunctional design. The method used in this study is the Kano method. The expected research results are the development of a design for one type of walker with multiple functions, namely functioning as a walking aid (walker) and functioning as a wheelchair, with a comfortable level of seating and can adjust its height.
Pengaruh Ukuran Bahan terhadap Yield pada Proses Ekstraksi Minyak Kayu Putih dengan Metode Microwave Hydrodiffusion and Gravity Nisa, Nur Ihda Farikhatin; Setiawan, Mohammad Arfi; Ardista, Syahlum Alvina; Maritha, Vevi
Journal of Research and Technology Vol. 10 No. 2 (2024): JRT Volume 10 No 2 Des 2024
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v10i2.1468

Abstract

Tumbuhan kayu putih (Melaleuca leucadendra Linn.) termasuk dalam keluarga Myrtaceae. Minyak kayu putih biasanya dihasilkan dari penyulingan tradisional (konvensional) yang proses ekstraksinya memerlukan waktu dan energi yang cukup banyak. Bukan hanya itu penyulingan secara konvensional memerlukan pelarut kimia yang cukup banyak dengan harga yang mahal. Sehingga pada penelitian ini dilakukan pengembangan dari metode konvensional yaitu metode microwave hydrodiffusion gravity (MHG) yang tidak membutuhkan pelarut. Tujuan dari penelitian ini adalah menetapkan ukuran bahan yang paling optimal pada ekstraksi menggunakan metode MHG. Bahan yang digunakan pada penelitian ini adalah daun kayu putih pada kondisi bahan tanpa pengeringan dan dengan pengeringan. Variabel ukuran daun yang digunakan adalah 1 cm; 1,5 cm; dan 2 cm. Dari hasil penelitian diperoleh bahwa kondisi operasi yang optimal untuk ekstraksi minyak kayu putih menggunakan metode MHG pada bahan kering dengan ukuran 1 cm menghasilkan yield sebesar 2,96%. Pada bahan tanpa pengeringan dengan bentuk daun cacah menghasilkan yield sebesar 1,79%.
Analisis Pengendalian Kualitas Produk Tiang Listrik dengan Metode Seven Tools dan FMEA (Failure Mode Effect Analysis) di PT XY Basjir, Mochammad; Kresna Agung Yudhistira; Unung Lesmanah; Nur Robbi; Suhartini
Journal of Research and Technology Vol. 10 No. 2 (2024): JRT Volume 10 No 2 Des 2024
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v10i2.1473

Abstract

PT XY, a precast concrete manufacturer, especially for electric poles, faces product quality problems in the form of defects, which harm quality, management, and production costs. This study aims to identify the root causes of defects and provide improvement solutions using the Seven Tools and Failure Mode and Effect Analysis (FMEA) methods. FMEA is used to identify potential and risk of failure and to formulate priority improvement actions. The results of the study showed three main types of defects: porous fins (53.53%), skin sticking (39.56%), and mottled (6.92%). The causal factors include methods, materials, humans, and machines/tools. FMEA analysis produces the highest Risk Priority Number (RPN) for porous fins (192) caused by imprecise molds (machine/tool ​​factors). The recommended solution is to inspect and repair the moulds periodically. Skin sticking defects have an RPN of 210, caused by poor oil quality (material factors); replacing the oil with an oil-based type is the solution. Mottled defects with an RPN of 144 are caused by the low slump of the casting mixture; the solution is to guide the mixing of raw materials according to standards. This study provides specific recommendations to reduce defects in electric pole products at PT XY, focusing on mould improvement, replacement of oil types, and standardization of raw material mixing.
Enhancing Industrial Wastewater Oil Removal Through Integrated Coagulation–Flocculation Pretreatment and Dissolved Air Flotation (DAF) Yustia Wulandari Mirzayanti; Purwaningsih, Dian Yanuarita; Ni'am, Achmad Chusnun; Awaludin, Aditya Fikri
Journal of Research and Technology Vol. 10 No. 2 (2024): JRT Volume 10 No 2 Des 2024
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v10i2.1516

Abstract

Oil content in the water that exceeds the threshold can pollute the environment if disposed of directly without waste treatment. This study conducted a case study of engineering waste treatment containing 1% oil using the Dissolve Air Flotation (DAF) method through coagulant and flocculant pre-treatment. The independent variable used in this study is pressure and residence time, where the pressure variable consists of 0.6, 0.8, 1, 1.2, and 1.4 bar, while the residence time variables comprised 5, 15, 30, 45, and 60 minutes. This study obtained the maximum pressure and residence time, namely at a pressure of 1.4 bar and a residence time of 60 minutes; the highest oil removal was 98.32%. Turbidity removal was 92.31% in 1% of engineering waste for engineering destruction.
Analysis of Health Protocol Implementation Through UTAUT (Unified Theory of Acceptance and Use of Technology) Model in Trenggalek DistrictMODEL IN TRENGGALEK DISTRICT Daniati, Reni; Andini, Rizqi Aulia Kusuma; Ni'am, Achmad Chusnun; Utami, Rahayu Putri; Mirzayanti, Yustia Wulandari; Prasetya, Kevin Daffa; Agatha, Marsha Savira
Journal of Research and Technology Vol. 10 No. 2 (2024): JRT Volume 10 No 2 Des 2024
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v10i2.1531

Abstract

The COVID-19 pandemic has introduced significant behavioral changes driven by adopting health protocols known as the 5M measures—mask-wearing, handwashing, maintaining physical distance, limiting mobility, and avoiding crowds. This study evaluates the implementation of the 5M health protocols in Trenggalek and Bendungan Districts, representing urban and rural areas, respectively. Utilizing the Unified Theory of Acceptance and Use of Technology (UTAUT) model, modified with Clean and Healthy Behavior (PHBS) constructs, this research examines community awareness and adherence to 5M protocols. A survey involving 758 respondents from both districts was conducted during the pandemic to assess factors influencing compliance. The findings highlight that social influence through counseling, advertisements, and posters plays a pivotal role in shaping behavioral intentions related to protocol adherence. Furthermore, these intentions directly influence actual behavior, reinforcing sustained compliance with the 5M measures. Notably, urban and rural contexts demonstrated similar patterns, underscoring the universal impact of social influence regardless of geographic setting. This study concludes that strengthening community engagement and targeted social campaigns can enhance public health resilience and preparedness for future pandemics by fostering sustainable health-conscious behavior.
Identification of Workplace Accidents at PT XYZ In Sidoarjo Using The Job Safety Analysis (JSA) Method Hakim, Luqman; Irwin, Mochammad Denis; Abdillah, Ikhwan; Masykuri, Ali
Journal of Research and Technology Vol. 10 No. 2 (2024): JRT Volume 10 No 2 Des 2024
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v10i2.1536

Abstract

The rapid development of technology in Indonesia significantly impacts various aspects of life, including the industrial sector. One of the negative impacts on this sector is the occurrence of work accidents that cause injury and death. This is due to the low implementation of Occupational Health and Safety (K3) culture in the industrial world. PT XYZ, a company engaged in the hot rolling coil industry in Sidoarjo, implements a K3 system. However, based on initial observations, there are still obstacles, especially the lack of understanding of human resources regarding Standard Operating Procedures (SOP). This study aims to identify the factors causing work accidents and outline corrective steps to reduce the risk. Using the Job Safety Analysis (JSA) method, this study found that in 2022, there were 43 cases of work accidents, while in 2023, the number decreased to 41 cases. As a result of these accidents, in 2022, there was a loss of 21 working days per 1,000,000 working hours/person, while in 2023, the loss of working days decreased to 18 days for the same period. The accident indicator also showed a decline, from 0.47 in 2022 to 0.38 in 2023. Recommendations to prevent work accidents at PT XYZ include reading the safety board, attending briefings before work, doing work according to the job description, and using personal protective equipment such as safety shoes and work helmets.
Analisis Pemindahtanganan dan Penghapusan Aset berupa Armada Tangki (AMT) pada Sector Industry Minyak dan Gas Yunanik, Yunanik; Sono, Sono; Pratama, Rendy Bagus
Journal of Research and Technology Vol. 11 No. 2 (2025): JRT Volume 11 No 2 Des 2025
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/4b9hgk40

Abstract

Penelitian ini bertujuan untuk menggali bagaimana proses pemindahtanganan dan penghapusan aset Armada Mobil Tangki (AMT) di sektor industi minyak dan gas bumi serta menilai kelayakan penggunaan aset tersebut melalui skema sewa untuk mendukung kegiatan bisnis. Penelitian ini menggunakan metode deskriptif dan metode finansial untuk menganalisis kelayakan investasi. Analisis finansial dilakukan dengan menggunakan NPV (Net Present Value), IRR (Internal Rate of Return), ARR (Accounting Rate of Return), dan PI (Profitability Index). Kredibilitas data kualitatif diuji terlebih dahulu untuk memastikan keakuratannya. Hasil penelitian menunjukkan bahwa pemindahtanganan dan penghapusan AMT harus dilakukan sesuai dengan peraturan yang berlaku, seperti penjualan, hibah, tukar menukar, atau penyertaan modal pemerintah pusat. Perhitungan depresiasi menunjukkan bahwa potensi layanan dan nilai ekonomi aset ini tidak lagi ada, dengan biaya perolehan tahun 2005 menghasilkan kerugian tahunan dan nilai buku menjadi negatif karena seharusnya dilakukan penyusutan pada tahun 2013. Analisis kelayakan investasi sewa aset AMT menunjukkan NPV sebesar Rp1.480.523.057.243, menandakan investasi layak (NPV > 0); IRR sebesar 973,65% selama 10 tahun, melebihi suku bunga tahunan 15%; ARR sebesar 288,15%, menegaskan kelayakan berdasarkan depresiasi aset; dan PI sebesar 23,37%, menunjukkan proposal investasi dapat diterima (PI > 1).
Optimasi Persediaan Produk Perishable dengan Mempertimbangkan Penurunan Kualitas dan Emisi Karbon: Studi Kasus Cabai Wulandari, Lusi Mei Cahya; Widari, Nyoman Sri
Journal of Research and Technology Vol. 11 No. 2 (2025): JRT Volume 11 No 2 Des 2025
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/3p6eq709

Abstract

Produk perishable memiliki masa simpan terbatas, sehingga diperlukan metode tertentu untuk mempertahankan kualitasnya. Tantangan utamanya adalah menentukan jumlah pasokan yang dibutuhkan sebelum produk tersebut kedaluwarsa. Penelitian ini bertujuan memaksimalkan keuntungan dengan mempertimbangkan penurunan kualitas produk. Model yang digunakan melibatkan dua fase persediaan: fase pertama untuk menyimpan cabai segar, dan fase kedua untuk menyimpan cabai kering. Sumber pasokan hanya berasal dari satu jenis, yaitu cabai segar, yang digunakan untuk memenuhi dua jenis permintaan berbeda. Proses yang disebut renewal process dilakukan melalui pengeringan, yang dapat memperpanjang masa simpan produk. Sisa produk dari fase pertama dapat diproses lebih lanjut melalui renewal. Selain itu, penelitian ini juga mempertimbangkan kendala emisi karbon selama penyimpanan cabai segar. Terdapat dua skenario yang merepresentasikan kondisi sistem nyata: skenario pertama dengan permintaan tetap dan skenario kedua dengan permintaan fluktuatif. Hasil penelitian menunjukkan perbedaan signifikan antara kedua skenario dalam hal efisiensi dan adaptabilitas. Skenario pertama lebih hemat biaya karena total biayanya lebih rendah, terutama pada biaya inventori (Rp 185.593 dan Rp 204.784), dan jumlah inventori lebih kecil, sehingga cocok untuk permintaan yang stabil. Sebaliknya, skenario kedua lebih adaptif terhadap permintaan yang fluktuatif meskipun total biayanya lebih tinggi.
Analisis Persediaan Bahan Baku Bleaching Earth Dengan Metode Economic Order Quantity Pada PT Salim Ivomas Pratama, Tbk Surabaya HM, Gatot Basuki; Syahry, Muhammad Alfy
Journal of Research and Technology Vol. 11 No. 2 (2025): JRT Volume 11 No 2 Des 2025
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/eya94p20

Abstract

PT Salim Ivomas Pratama Tbk, Surabaya is a company engaged in the cooking oil, margarine and shortening industry which has a large enough production in Indonesia, basic raw materials CPO (Crude Palm Oil) and supporting materials such as Bleaching Earth. So it is not uncommon for PT Salim Ivomas Pratama to experience problems in raw material inventory. In the raw material purchasing system, PT Salim Ivomas Pratama, Tbk Surabaya uses an application automation system to facilitate the work of the PPIC division. By using the application automation system, it is not uncommon to experience problems with the actual stock of raw materials supporting the production of cooking oil. In overcoming this, raw material purchase data in the previous period becomes a reference for managing future purchases of Bleaching Earth raw materials. This study aims to determine the optimize of quantity and frequency, calculate total cost, determine the Safety Stock and reorder Point, and compare the total cost of Bleaching Earth raw material inventory company policies using the Economic Order Quantity method.
Implementation of Lean Office and Industry 4.0 Technologies to Enhance Administrative Efficiency, Productivity, and Organizational Sustainability: A Case Study in a Public Valuation Office Jumali, Muhamad Abdul; Anjeli Riza Umami; Rusdiyantoro
Journal of Research and Technology Vol. 11 No. 2 (2025): JRT Volume 11 No 2 Des 2025
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/858cy611

Abstract

This study explores how the integration of Lean Office principles and Industry 4.0 technologies specifically IoT, AI, and Big Data for enhances administrative efficiency, productivity, and sustainability in professional service firms. A mixed-methods approach was adopted through surveys and interviews with 44 respondents from a public valuation office in Sidoarjo, Indonesia. Quantitative data were analyzed using multiple regression (R² = 0.908), revealing that Lean Office (β = 0.281, p = 0.016) and Industry 4.0 (β = 0.253, p = 0.020) significantly improved productivity. 93.18% of respondents acknowledged a reduction in process time after implementation, while 95.45% reported increased productivity. Furthermore, 98% agreed that interdepartmental collaboration improved after digital transformation. These findings suggest that lean-digital integration in administrative settings fosters adaptive work culture, reduces waste, and contributes to organizational sustainability.

Page 45 of 46 | Total Record : 454

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