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All Journal Jurnal MIPA PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat MEANS (Media Informasi Analisa dan Sistem) Journal of Engineering and Transportation (JET) Kalao’s Maritime Journal International Journal of Mechanical, Industrial and Control Systems Engineering Pemberdayaan Masyarakat: Jurnal Aksi Sosial
Yustiani Frastika
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mathematics Physics Public Health Social Sciences Transportation

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Estimasi Periode Ulang Gempa Bumi Di Wilayah Sulawesi Dengan Menggunakan Distribusi Gumbel Frastika, Yustiani; Pasau, Guntur; Prang, Jantje D.
Jurnal MIPA Vol 2, No 2 (2013)
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jm.2.2.2013.3208

Abstract

Estimasi periode ulang gempa bumi yang bersifat ekstrim dengan menggunakan Distribusi Gumbel dilakukan untuk menganalisis kejadian gempa bumi yang telah terjadi sebelumnya menggunakan data sejak Januari 1905-Juni 2013. Pengolahan dan analisis data dilakukan dengan dua tahap. Pertama,Pengujian dan pemeriksaan pola sebaran data. Kedua, menentukan periode ulang gempa bumi untuk mengetahui keberulangan gempa ekstrim yang akan terjadi selanjutnya. Hasil analisis yang diperoleh adalah Wilayah Sulawesi sangat rawan terhadap kejadian gempa bumi yang bersifat ekstrim. Tingkat pengulangan kejadian gempa bumi untuk Wilayah  Provinsi Sulawesi Utara dalam kurun waktu 62-100  tahun adalah 7 Mw, Wilayah Provinsi Gorontalodalam kurun waktu 75-100 tahun adalah 6,8 Mw, Wilayah Provinsi Sulawesi Tengah dalam kurun waktu 82-100 tahun adalah 6,9 Mw, Wilayah Provinsi Sulawesi Selatan dalam kurun waktu 319-686 bulan adalah 6,2 Mw, Wilayah Provinsi Sulawesi Barat dalam kurun waktu 113-217 bulan adalah  6,2 Mw dan Wilayah Provinsi Sulawesi Tenggara dalam kurun waktu 45-97 tahun adalah 6,0 Mw.The estimation of extreme earthquake return period by using the Gumbel distribution is made to analyze the occurrence of earthquakes that have occurred previously using data from January 1905 to June 2013. Data processing and analysis has been in two stages. First, testing and examination of data distribution patterns to see whether the data follow the theoretical distribution, in this case the Gumbel distribution. Second, determining the return period of the earthquake to see a recurrence of extreme earthquake is going to happen in the future. Results of the analysis showed that Sulawesi Region is highly vulnerable to earthquakes which are extreme. Return period of earthquake on the region of North Sulawesi province in the period of 62-100 years is 7.0 Mw, the region of Gorontalo Province in the period of 75-100 years is 6.8 Mw, the region of Central Sulawesi Province in the period of 82-100 years is 6.9 Mw, the region of South Sulawesi Province in the period of 319-686 months is 6,.2 Mw, the region of West Sulawesi province in the period of 113-217 months is 6.2 Mw and the region of Southeast Sulawesi province in the period of 45-97 years is 6.0 Mw.
Evaluasi Efektivitas Pelatihan Pelaut Dalam Menghadapi Tantangan Di Laut Joseph Jefrie Hezkia Rengga; Frisca Mareyta Pongoh; Yustiani Frastika
Journal of Engineering and Transportation Vol. 2 No. 1 (2024): Journal of Engineering and Transportation
Publisher : Cipta Kind Publisher

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Abstract

Pelaut adalah garda terdepan dalam industri maritim, dan kemampuan mereka untuk menghadapi berbagai tantangan di laut sangat penting untuk keselamatan navigasi serta kelancaran operasional. Penelitian ini bertujuan untuk mengevaluasi efektivitas pelatihan yang diterima pelaut dalam mempersiapkan mereka menghadapi situasi darurat, kondisi cuaca ekstrem, dan tantangan teknis lainnya. Metode evaluasi dilakukan melalui survei terhadap pelaut yang telah mengikuti berbagai program pelatihan, analisis data kecelakaan kapal, serta wawancara dengan instruktur pelatihan. Hasil penelitian menunjukkan bahwa pelaut yang telah menjalani pelatihan intensif memiliki tingkat respons yang lebih baik dalam situasi kritis dibandingkan yang tidak. Namun, terdapat identifikasi kebutuhan peningkatan dalam aspek simulasi praktis dan pemahaman teknologi navigasi terkini. Studi ini menyarankan pengembangan kurikulum pelatihan yang lebih komprehensif dan berbasis teknologi untuk lebih mempersiapkan pelaut dalam menghadapi tantangan yang terus berkembang di laut. Temuan ini diharapkan dapat berkontribusi pada penguatan sistem pelatihan pelaut di Indonesia, sekaligus meningkatkan keselamatan pelayaran nasional.
Interpretasi Bawah Permukaan Daerah Panas Bumi Marana Desa Masaingi, Kabupaten Donggala, Provinsi Sulawesi Tengah Berdasarkan Data Anomali Magnetik Frastika, Yustiani; Dikdik Risdianto; Mochamad Nukman; Eddy Hartantyo
KALAO'S MARITIME JOURNAL Vol 4 No 2 (2023): KALAO’S MARITIME JOURNAL
Publisher : Politeknik Pelayaran Sulawesi Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69754/kalaos.v4i2.49

Abstract

The existence of Marana geothermal manifestations of hot springs scattered in Masaingi Sub-district, Donggala District, Central Sulawesi Province, indicates geothermal prospect zone. Therefore, in order to obtain the subsurface model and to interpret the prospect zone, has been conducted an interpretation of Marana geothermal subsurface area based on magnetic anomaly data. The research uses secondary data of magnetic anomaly obtained from Centre for Geological Resources, Bandung, Indonesia. The research area is located on UTM zone system 50 which close to the magnetic equator, therefore the reduction to equator (RTE) process is applied to the IGRF corrected dan diurnal variations. The Upward Continuation is conducted to obtain a regional magnetic anomaly on 600 meters. Furthermore, 2.5-dimensional modeling on subsurface had done by the Talwani method using Software Oasis Montaj. The 2.5-dimensional modeling results show that the contrast of magnetic susceptibility value of Marana Geothermal rocks. Medium magnetic susceptibility value are metamorphic rock complex and Tinombo Alhburg Formation with values ranging from 0,69-0,8 (x10-2SI). Formation of Molasa Celebes Sarasin and Sarasin have low magnetic susceptibility with values 0,007-0,01 (x10-2SI), whereas high magnetic susceptibility value are granite and granodiorite (1,2x10-2SI). The new intrusion is found in the body of granite and granodiorite with magnetic susceptibility value 2,1 (x10-2SI). Based on the result of Marana geothermal modelling, the prospect zone (reservoir) is estimated in the West of research area which near the Masaingi hot spring. The prospect zone is estimated to be sandstone at a depth of ± 1200 metre. The heat source is the new intrusion thought to be a heat source (diorite) with a depth of> 4500 m. Clay cap is predicted to be an altered sandstone of argillitic alteration. The Masaingi hot spring is indicated to be an upflow zone just above the heat source, while the outflow zone is estimated to be in the southern of the research area.
Analysis of the Application of Additive Manufacturing for On-Demand Repair and Maintenance of Naval Equipment in Remote Maritime Operations Yustiani Frastika; Frisca Mareyta Pongoh; Dedtri Anwar; Arika Palapa; Jaya Alamsya
International Journal of Mechanical, Industrial and Control Systems Engineering Vol. 2 No. 1 (2025): March :IJMICSE: International Journal of Mechanical, Industrial and Control Sys
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/ijmicse.v2i1.255

Abstract

Background: Traditional naval maintenance strategies rely on centralized supply chains and pre-manufactured spare parts, leading to long repair downtimes and logistical inefficiencies, particularly for vessels operating in remote maritime regions. Additive manufacturing (3D printing) offers a disruptive alternative by enabling on-demand production of spare parts, reducing dependence on external suppliers, and enhancing fleet self-sufficiency. However, material durability, operational feasibility, and cost-effectiveness remain underexplored for naval applications. Original Value: This research advances the study of AM in naval engineering, assessing its practical viability beyond theoretical potential. Unlike previous studies focusing on commercial maritime applications, this study evaluates 3D printing’s impact on naval fleet readiness, supply chain resilience, and sustainability. Objectives: The study investigates how 3D printing can optimize naval maintenance efficiency, specifically analyzing its feasibility, material performance, cost implications, and logistical advantages. Methodology: A qualitative-empirical approach was used, combining material performance testing, expert interviews, and operational case studies to evaluate mechanical durability, economic feasibility, and AM integration challenges. Results: Findings indicate that AM reduces repair downtime by 40%, lowers part procurement costs by 30–50%, and enhances supply chain resilience. However, material limitations and infrastructure readiness remain key adoption challenges. Conclusions: Hybrid AM adoption—where 3D printing supplements rather than replaces traditional manufacturing—offers the most practical near-term approach for naval fleets. Strategic investment in material research, onboard AM training, and fabrication infrastructure will enhance fleet efficiency, reduce environmental impact, and future-proof maritime maintenance strategies.
Enhancing Predictive Maintenance Strategies for Naval Auxiliary Systems in Maritime Training Vessels : A Qualitative and Sensor-Based Analysis Jaya Alamsyah; Yustiani Frastika; Stevian G. A. Rakka; Haryadi Wijaya; Santun Irawan
International Journal of Mechanical, Industrial and Control Systems Engineering Vol. 2 No. 1 (2025): March :IJMICSE: International Journal of Mechanical, Industrial and Control Sys
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/ijmicse.v2i1.256

Abstract

Background: Maritime engineering has traditionally relied on reactive and preventive maintenance strategies, often leading to operational inefficiencies, unplanned downtime, and excessive costs. With the rise of smart ship technologies, predictive maintenance (PdM) has emerged as a data-driven solution, leveraging sensor-based monitoring and real-time diagnostics to optimize ship maintenance. However, its integration into maritime education remains underexplored, particularly in training vessels used for vocational learning. Original Value: This research contributes new insights into the feasibility, effectiveness, and educational relevance of predictive maintenance in maritime vocational training. Unlike previous studies that focus on commercial ship applications, this study examines PdM within the context of training vessels at Poltekpel SULUT, bridging the gap between academic training and industry expectations. Objectives: The study seeks to answer: How does predictive maintenance improve the efficiency, cost-effectiveness, and reliability of naval auxiliary systems in training vessels? Methodology: A qualitative approach was employed, integrating sensor-based performance analysis, structured interviews, and questionnaire surveys involving cadets, instructors, and industry professionals. Data were analyzed through thematic categorization, cross-group comparisons, and narrative synthesis. Results: PdM demonstrated high effectiveness in reducing downtime (92/100), optimizing maintenance efficiency (91/100), and aligning with industry practices (89/100). However, challenges in sensor accuracy (85/100) and training integration were identified. Conclusions: The findings highlight the necessity of incorporating predictive maintenance into maritime training curricula to equip future engineers with the skills required for Industry 4.0 maintenance solutions, ensuring better operational efficiency and sustainability in the maritime sector.
Optimalisasi Proses Klaim Asuransi Protection & Idemnity (P&I) pada Kecelakaan Kerja Crew di Kapal PT Pertamina International Shipping Ngazizah Nuraini; Yustiani Frastika; Iksan Saifudin; Jeihn Novita C. Budiman; Frisca Mareyta Pongoh
KALAO'S MARITIME JOURNAL Vol 5 No 2 (2024): Desember : Kalao’s Maritime Journal
Publisher : Politeknik Pelayaran Sulawesi Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69754/kalaos.v5i2.120

Abstract

Film is one of the mass communication media that has a significant power in delivering messages to audiences. As a form of art and entertainment, film not only serves as a means of recreation but also as a tool for conveying values, ideologies, and social criticism to society. This study aims to analyze the representation of women's power in the film Jangan Salahkan Aku using Roland Barthes' semiotic approach. The analysis is conducted using the concept of lexia and Barthes' five reading codes, namely the hermeneutic, proairetic, symbolic, cultural, and semic codes. The findings indicate that women's power in this film is represented through narrative and visual elements that emphasize women's positions in power relations, both in domestic and social spheres. This study contributes to understanding how cinema constructs and reflects the representation of women's power through a complex system of signs.
The Importance of Maintaining Fishing Boats and Understanding Life Safety at Sea for Fishermen in East Sapa Village Dedtri Anwar; Frisca Mareyta Pongoh; Yustiani Frastika; Santun Irawan; Joseph R Rengga
Pemberdayaan Masyarakat : Jurnal Aksi Sosial Vol. 1 No. 2 (2024): Juni : Pemberdayaan Masyarakat: Jurnal Aksi Sosial
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/aksisosial.v1i2.456

Abstract

The importance of fishing boat maintenance cannot be underestimated. A well-maintained vessel not only increases efficiency in fishing operations, but also minimizes the risk of accidents at sea. Ship maintenance covers various aspects, from regular engine inspections, repairing damaged hulls, to ensuring that all safety equipment is in good condition. The purpose of this study is to increase the awareness and understanding of fishermen in East Sapa Village regarding the importance of ship maintenance and life safety at sea. This research method uses a qualitative method with a short description of the analysis. The results of this study show that although the fishermen of East Sapa Village have a basic awareness of the importance of boat maintenance and safety at sea, they face a variety of significant challenges, including limited resources, limited technical knowledge, and lack of relevant training. Financial and material constraints hinder the implementation of thorough ship maintenance, while a varied understanding of safety indicates the need for more in-depth education. Strong community cooperation and greater government support, including the provision of resources and training programs, are essential to address these issues and improve the well-being and safety of fishermen.
Rancang Bangun Aplikasi Tracer Study Berbasis Android di Politeknik Pelayaran Sulawesi Utara Irawan, Santun; Silalahi, Aliong; Pongoh, Frisca Mareyta; Frastika, Yustiani; Ansar, Azhar Ariansyah
MEANS (Media Informasi Analisa dan Sistem) Volume 9 Nomor 2
Publisher : LPPM UNIKA Santo Thomas Medan

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Abstract

Advancements in information technology have simplified various aspects of human life, including in the education sector. One important tool for monitoring the effectiveness of higher education is a tracer study information system, which allows educational institutions to gather data on alumni and their contributions to the workforce. Politeknik Pelayaran Sulawesi Utara (PPSU), as a higher education institution under the Ministry of Transportation, faces challenges in managing alumni data that are dispersed across various regions in Indonesia. Therefore, this study aims to design and develop an Android-based tracer study application to streamline the management of alumni data more efficiently and accurately. The research methodology employed is the waterfall model, which includes the stages of planning, analysis, design, implementation, and testing. The findings of this study indicate that the developed Android-based tracer study application can assist in managing alumni data more efficiently, allowing administrators to obtain real-time information from anywhere. This application also provides convenience for alumni to update their information while offering constructive feedback to improve the quality of education at PPSU. Based on the test results, the application is deemed feasible and effective for use in managing alumni data. This research is expected to serve as a reference for the development of similar systems at other higher education institutions and contribute to the improvement of higher education quality in Indonesia.
Optimalisasi Proses Penerbitan Grosse Akta untuk Kapal Nelayan di Kantor Kesyahbandaran dan Otoritas Pelabuhan Kelas III Parepare Ulia Fadhilah; Yustiani Frastika; Iksan Saifudin
KALAO'S MARITIME JOURNAL Vol 6 No 1 (2025): Juli : Kalao’s Maritime Journal
Publisher : Politeknik Pelayaran Sulawesi Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69754/kalaos.v6i1.135

Abstract

The process of issuing a Grosse Akta (Grosse Deed) at the Parepare Class III Harbormaster and Port Authority Office is crucial for ensuring the legality of fishing vessels operating in the region. However, several obstacles often arise, slowing the process and increasing the administrative burden on fishermen. One major obstacle is incomplete documentation, which hinders the smooth running of the administrative process. Many fishermen do not fully understand the required documents and administrative procedures. This results in longer processing times for issuing a Grosse Akta. Technical issues also contribute to a hindering process, particularly those related to systems that are not yet well integrated. The continued use of manual recording in some parts of the process often leads to errors or inaccuracies in vessel data processing. Furthermore, a shortage of trained experts in handling administrative documents also contributes to the delay in completion times. To address these obstacles, this study suggests several strategic steps that can be taken to improve the efficiency of issuing a Grosse Akta. A comprehensive and easily understood guide for fishermen will assist them in properly preparing the required documentation. Simplifying the document format can also speed up the process, while improving consultation and help desk services will provide faster assistance to fishermen experiencing difficulties. Furthermore, digitizing the document management system will speed up workflows and reduce reliance on error-prone manual record-keeping. These steps are expected to improve the efficiency of the Grosse Akta publication process and provide better service to fishermen. By implementing these strategies, it is hoped that the Grosse Akta publication process will be more transparent and easily accessible to all fishermen.
Penyuluhan Penggunaan Lampu Navigasi Pada Kapal Nelayan Desa Wawontulap Untuk Menghindari Bahaya Tubrukan di Laut: Socialization on the Use of Navigation Lights for the Coastal Fisherman Society of Wawontulap Village to Avoid Collision Hazard at Sea Silalahi, Aliong; Irawan, Santun; Frastika, Yustiani
PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 8 No. 6 (2023): PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institute for Research and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/pengabdianmu.v8i6.5523

Abstract

Risks of transportation safety are still a common issue in Indonesia. Communities living in coastal and marine areas, the majority of whom work as fishermen, still rely on traditional knowledge and skills. Wawontulap Village is located in the Tatapaan District with a total of 80 active fishermen, most of whom use small-scale traditional fishing boats with 50 cc to 80 cc motor engines and without adequate navigation tools, thus impacting visibility for ship maneuvers. fisherman. The position and potential for catching larger fish at night is a challenge for the fishing community in Wawontulap Village. This is because at night many fishing or fishing boats with larger sizes also descend into the sea which can cause a collision hazard between ships. The problem of navigation tools in the form of navigation lights is deemed necessary to find a solution immediately. Navigation lights on board apart from functioning as navigation guides can also be used as lighting and communication tools in the form of light signals if fishermen need help at any time. the method of socialization and delivery of assistance in the form of 3 (three) navigation lights which were handed over symbolically to village officials (the old law). From this community service activity it shows that fishermen's knowledge of the importance of navigation lights becomes clear and the danger of ship collisions when fishermen go outside to catch fish can be avoided.
Co-Authors Alamsyah, Jaya Aliong Silalahi Ansar, Azhar Ariansyah Arika Palapa Dedtri Anwar Dikdik Risdianto Eddy Hartantyo Frisca Mareyta Pongoh Guntur Pasau Haryadi Wijaya Iksan Saifudin Jantje D. Prang Jaya Alamsya Jeihn Novita C. Budiman Joseph Jefrie Hezkia Rengga Joseph R Rengga Mochamad Nukman Ngazizah Nuraini Pongoh, Frisca Mareyta Santun Irawan, Santun Stevian G. A. Rakka Ulia Fadhilah