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Measurement of Train Driver Mental Workload Using the RNASA-TLX Method Suhanto, Suhanto; Utomo, Bagus Wahyu; Husna, Nuzulul Latifatul; Gunawan, Gunawan; Mauidzoh, Uyuunul; Sullyartha, Esa Rengganis
Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 16, No 2 (2024): November
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/angkasa.v16i2.2172

Abstract

Efforts to develop the national railway system throughout Indonesia continue to be improved. The role of the train driver is the leading indicator of the success of transportation services in terms of safety and security. In 2015, 20% of train accidents were caused by human factors, among other causes. Therefore, it is necessary to pay attention to how much workload is given related to the demands of the task to the driver and assistant driver during their duties. This study aims to measure the mental workload of machinists and assistant machinists by distributing questionnaires using the RNASA-TLX method, which is a development of the NASA-TLX method. Overall, the results of the RNASA-TLX measurement show that the workload felt by machinists and assistant machinists is classified as high mental workload, with the WWL score obtained in the value range of 50-79. Mental demands dominate the high cognitive workload of machinists, while visual demands dominate assistant machinists. From the t-test results, there is no significant difference, meaning that both machinists and assistant machinists have high task demands, so a leadership policy is needed in an effort to reduce the mental workload
Optimal labors number analysis using constraints approach theory in Weeka Wedang Uwuh small and medium enterprises Nurdin, Riani; Santoso, Prasidananto Nur; Gunawan, Gunawan; Mauidzoh, Uyuunul; Astuti, Marni; Kusumaningrum, Maria Deny
OPSI Vol 17 No 1 (2024): ISSN 1693-2102
Publisher : Jurusan Teknik Industri, Fakultas Teknologi Industri UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/opsi.v17i1.9534

Abstract

The increasing demand for wedang uwuh during the pandemic requires Weeka Wedang Uwuh as a producer to be quick and responsive in meeting demand. Competition for sales of wedang uwuh is currently quite tight because there are more and more wedang uwuh producers. One way to anticipate current business competition, especially in the herbal beverage industry, is to try to manage the resources owned by SMEs, including labor. The right number of workers will guarantee product availability and also provide minimum costs for labor costs. This research aims to provide suggestions for determining the optimal number of workers in order to minimize labor costs. ToC is a problem solving approach that focuses on eliminating constraints using available methodologies. Therefore, this approach is very suitable for eliminating obstacles at Weeka Wedang Uwuh in order to determine the optimal number of workers. To support the TOC approach, the Dynamic Program method will be applied to the obstacle removal step. The optimal number of workers in UKM Weeka Wedang Uwuh will be obtained by reducing 5 (five) workers in the Wedang Uwuh packing section. The savings that occurred during the research time period were Rp. 21,500,302.00 compared to expenses if it had the current number of workers.
Penerapan Critical Path Method (CPM) Guna Meningkatkan Efisiensi Pada Perawatan C-Check Pesawat Boeing 737-500 (PK-NAS) (Studi Kasus di PT. Merpati Maintenance Facility) Nurdin, Riani; Arrasyid, Calvin Ali; Mauidzoh, Uyuunul
Jurnal Rekayasa Sistem Industri Vol. 14 No. 1 (2025): Jurnal Rekayasa Sistem Industri
Publisher : Universitas Katolik Parahyangan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26593/jrsi.v14i1.7861.46-59

Abstract

Turn Around Time (TAT) in C-Check maintenance activities is a problem that often occurs in aircraft maintenance service organizations because it requires large operational costs for technicians, and there are losses due to waiting time for aircraft operations during maintenance. This research compares company TAT with TAT using the Critical Path Method (CPM) and the percentage of man-hours efficiency from calculating the CPM method. The research object and data were collected at the PT Merpati Maintenance Facility. The types and sources of data used in research are primary and secondary. The data analysis techniques used are Turn Around Time (TAT) planning calculations and the Critical Path Method (CPM) method, as well as analyzing calculations that have been carried out using Microsoft Excel. Based on the research results, it was found that the difference in results between company planning was 18.56 or 19 work days and planning using the CPM method was 16.94 or 17 work days, so that you get more efficient time for 2 work days in carrying out C-Check maintenance with a percentage of the man hours efficiency formula of 0.087%.
Pengembangan Video Profil Berbasis Drone untuk Konten Digital Marketing di Media Sosial Zabidi, Yasrin; Nurdin, Riani; Astuti, Marni; Santoso, Prasidananto Nur; Gunawan, Gunawan; Rengganis, Esa; Mauidzoh, Uyuunul
Mestaka: Jurnal Pengabdian Kepada Masyarakat Vol. 4 No. 5 (2025): Oktober 2025
Publisher : Pakis Journal Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58184/mestaka.v4i5.774

Abstract

The problem in the Community Service activity is that SMA Negeri 1 Wates already has a profile video, but does not yet have a drone-based profile video that displays the profile of SMA Negeri 1 Wates from the air which has its own appeal and uniqueness which will later be used as digital marketing content material in promoting the school. This problem can be overcome by developing a drone-based profile video for digital marketing content. The achievement of this activity is the realization of 3 (three) long versions of SMA Negeri 1 Wates Profile Videos with a duration of 3 minutes 50 seconds, 3 minutes 40 seconds, 2 minutes 21 seconds for digital marketing content on YouTube and the website and 1 (one) short version of SMA Negeri 1 Wates profile video with a duration of 38 seconds for digital marketing content on Instagram, Facebook, TikTok.
Penerapan Budaya Kerja 5S Pada Area Kerja di UKM Bengkel Sepatu JKS Mauidzoh, Uyuunul; Gunawan, Gunawan; Nurdin, Riani; Astuti, Marni; Zabidi, Yasrin; Kusumaningrum, Maria Asumpta Deny
Jurnal Mandala Pengabdian Masyarakat Vol. 6 No. 2 (2025): Jurnal Mandala Pengabdian Masyarakat
Publisher : Progran Studi Farmasi Universitas Mandala Waluya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35311/jmpm.v6i2.556

Abstract

Candi Borobudur merupakan destinasi wisata populer di Kabupaten Magelang, Jawa Tengah. Untuk menunjang kebutuhan wisatawan dalam berkunjung ke Candi Borobudur banyak didirikan Usaha Kecil Menengah (UKM) di sekitar candi, salah satunya adalah Bengkel Sepatu JKS milik Bapak Joko Santoso yang memproduksi sepatu, ikat pinggang, case handphone, dompet, tempat KTP, tempat korek api dan juga menerima reparasi sepatu dan tas. Bahan utama pembuatan produk UKM ini adalah kulit hewan asli dan dibuat secara manual dengan tangan (handmade). Permasalahan yang muncul pada Bengkel Sepatu JKS adalah kondisi kerja yang tidak bersih, tidak rapi, tidak aman, dan tidak nyaman. Kondisi tersebut sangat mempengaruhi kinerja pekerja dalam pembuatan produk. Oleh karenanya perlu dilakukan pendampingan dalam pengenalan dan menerapkan budaya kerja yang baik. Metode untuk menyelesaikan permasalahan di Bengkel Sepatu JKS berupa pendampingan dalam menerapkan budaya kerja 5S (Seiri, Seiton, Seiso, Seiketsu, Shitsuke). Hasil pendampingan Budaya kerja 5S antara lain penataan meja kerja pembuatan sepatu, rak untuk penempatan produk setengah jadi dan produk jadi, pembuatan petunjuk tempat dan slogan 5S, dan rak produk sandal upanat. Penerapan budaya kerja 5S di UKM Bengkel Sepatu JKS meningkat dari 25% menjadi 100%. Dapat disimpulkan bahwa kegiatan pengabdian masyarakat ini sangta bermanfaat bagi UKM Bengkel Sepatu JKS.
Optimalisasi Perawatan Pesawat Terbang dengan CPM, PERT, dan Linear Programming pada Perusahaan MRO Riani Nurdin; Uyuunul Mauidzoh; Nurfi Ahmadi
JATI UNIK : Jurnal Ilmiah Teknik dan Manajemen Industri Vol. 9 No. 2 (2026): April
Publisher : Industrial Engineering, Engineering of Faculty, Universitas Kadiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/jatiunik.v9i2.6660

Abstract

Maintenance, Repair, and Overhaul (MRO) companies face significant challenges in completing aircraft maintenance projects on time and within budget. The existing gap lies in the optimization of planning methods integration to minimize project duration and cost. This study aims to assess the balance between time and cost in aircraft maintenance projects by showing the benefits of combining CPM, PERT, and Linear Programming. Data were obtained from the A02-CHECK activity at a national MRO company. CPM and PERT were used to find the critical path and estimate project duration, while LP was used to optimize time and cost on that path. The project duration decreased from 6,199 to 4,547 minutes, with the critical path in activities A-C-E-G-H and an 84.13% success probability. Using LP, the duration dropped further to 4,090 minutes at a total cost of $202. It can be concluded that the integration of these three methods is effective in accelerating projects without exceeding the budget. The main contribution of this research is the development of an integrated approach to aircraft maintenance project planning which can capable of reducing the risk of delays and budget overruns. in addition, it also provides practical solutions for MRO companies
Pengenalan Aspek Ergonomi pada Penataan Operasional Bongkar Muat Pasar Giwangan Yogyakarta Santoso, Prasidananto Nur; Astuti, Marni; Nurdin, Riani; Sullyartha, Esa Rengganis; Mauidzoh, Uyuunul; Gunawan, Gunawan; Poerwanto, Eko; Zabidi, Yasrin; Budiwidodo, Sidik
Mestaka: Jurnal Pengabdian Kepada Masyarakat Vol. 5 No. 2 (2026): APRIL 2026
Publisher : Pakis Journal Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58184/mestaka.v5i2.917

Abstract

Traditional markets act as food-logistics nodes with intensive unloading activities and manual handling that may increase musculoskeletal risk, internal congestion, and reduced accessibility due to layout and hygiene issues. This community-service paper is developed from a field assessment at Pasar Giwangan, Yogyakarta, conducted during 3 months (April–June 2020), and translated into an ergonomics socialization package, critical point mapping of circulation, and practical recommendations for loading and unloading operations. Key findings include heavy carrying (>50 kg) by informal porters with 2–5 repetitions per task, peak-hour congestion, reduced effective lane width caused by access configuration, and improper waste disposal that disturbs comfort and mobility. Proposed outputs include OSH ergonomics materials, strengthening handling aids (trolleys), and circulation/zonation adjustments for unloading activities.
Pembuatan Konten Promosi di Media Sosial untuk Produk Susu Kambing Etawa Zabidi, Yasrin; Nurdin, Riani; Astuti, Marni; Santoso, Prasidananto Nur; Gunawan, Gunawan; Rengganis, Esa; Mauidzoh, Uyuunul; Poerwanto, Eko; Budiwidodo, Sidik
Mestaka: Jurnal Pengabdian Kepada Masyarakat Vol. 5 No. 2 (2026): APRIL 2026
Publisher : Pakis Journal Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58184/mestaka.v5i2.922

Abstract

In today's digital era, promotional activities must follow digital marketing trends. One form of digital marketing is utilizing social media to promote products. The problem faced by the Etawa Goat Milk MSME was the lack of engaging promotional content on social media to introduce the product and increase its awareness among the wider public. Utilizing social media aims to make it easier for brands to connect with customers. The solution to this problem is to create engaging promotional content for publication on social media. The goal of this activity is to create engaging promotional content for publication on Instagram posts, stories, and reels, Facebook, TikTok, and WhatsApp.
Radar-based gesture recognition simulation for unmanned aerial vehicles command interpretation Dermawan, Denny; Kurniawan, Freddy; Astuti, Yenni; Setiawan, Paulus; Lasmadi, Lasmadi; Mauidzoh, Uyuunul; Sudibya, Bambang
International Journal of Electrical and Computer Engineering (IJECE) Vol 16, No 3: June 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v16i3.pp1227-1235

Abstract

Radar-based gesture recognition has emerged as a robust alternative to vision-based systems, particularly in environments where lighting and privacy pose challenges. This study presents a simulation approach for recognizing hand gestures to control unmanned aerial vehicles (UAVs) using radar signals. Five discrete gestures, i.e., TakeOff, Land, MoveForward, TurnLeft, and stop, were defined and modeled in MATLAB to generate synthetic radar signals. From each sample, four time-frequency domain features were extracted: duration, maximum amplitude, dominant frequency, and root mean square (RMS). A dataset of 500 samples (100 per class) was classified using three supervised learning models: support vector machine (SVM), k-nearest neighbors (k-NN), and decision tree. The k-NN classifier achieved the highest accuracy of 96%, demonstrating the feasibility of lightweight classifiers for gesture recognition using low-complexity features. These results highlight the potential of radar-based interfaces to replace traditional remote controls in UAV operation. The proposed simulation framework contributes to the development of intuitive, non-contact human-machine interaction systems.
Bibliometric Analysis of UAV/Drone Maintenance Publications Prasidananto Nur Santoso; Eko Poerwanto; Lazuardy Rahendra Pinandhita; Yasrin Zabidi; Uyuunul Mauidzoh; Fajar Khanif Rahmawati
JUMANTARA: Jurnal Manajemen dan Teknologi Rekayasa Vol 5, No 1 (2026): Januari
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/jumantara.v5i1.2898

Abstract

This study highlights the lack of comprehensive studies on UAV (Unmanned Aerial Vehicle) and drone maintenance, despite numerous bibliometric studies conducted in other fields. This knowledge gap on this crucial aspect of UAV technology necessitates an in-depth analysis of the existing literature. The primary objective of this study is to conduct a bibliometric analysis of publications related to UAV/drone maintenance to map the literature, identify trends, and highlight contributions from different countries, universities, and authors. The analysis was conducted by collecting metadata from 30 years of academic publications (1994–2024) indexed in databases such as Scopus, and using VOSViewer to visualize the bibliometric network. Expected outcomes include identification of the most influential publications, authors, and journals, mapping research trends, and insights into collaboration opportunities between researchers and institutions. These findings are expected to guide future research by providing research topic recommendations to address existing literature gaps. Overall, this study offers a comprehensive overview that enriches the literature and encourages significant innovation in UAV/drone maintenance.