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All Journal JIPM (Jurnal Ilmiah Pendidikan Matematika) JURNAL SAINS DAN TEKNOLOGI MARITIM Impression : Jurnal Teknologi dan Informasi
Wulan Marlia Sandi
Politeknik Pelayaran Surabaya
Astronomy Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering Transportation

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IMPLEMENTASI SISTEM STREAMING SEBAGAI UPAYA PEMANTAUAN DAN PENUNJANG KESELAMATAN PROSES SANDAR KAPAL PADA PELABUHAN PINTAR Aditya Firmansyach; Henna Nurdiansari; Wulan Marlia Sandi
JURNAL SAINS DAN TEKNOLOGI MARITIM Vol. 26 No. 2 (2026): Maret
Publisher : UNIMAR AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33556/jstm.v26i2.617

Abstract

This study aims to implement a real-time streaming system as a monitoring tool during the ship berthing process at a smart port, analyze the effectiveness of the streaming system in improving the monitoring and safety of the ship berthing process at a smart port, and explain how the components work in real-time to support the ship berthing process at a smart port. The ship berthing process is a crucial stage in port operations that requires real-time monitoring to ensure safety and efficiency. The developed system uses a Raspberry Pi as the main controller integrated with a V2 camera module, a proximity sensor, a WiFi hotspot module, and an Internet of Things (IoT)-based power monitoring system. Visual data in the form of streaming video and sensor data are sent in real-time to the monitoring application to assist port operators in monitoring the distance of ships to the dock. The research method used is Research and Development (R&D) which includes the design, assembly, testing, and evaluation stages of the system. Test results show that the system performs well in displaying real-time video streaming with an average streaming delay of 1.54%, accurately detecting vessel distances with an average of 0.81%, and providing relevant supporting information to improve the safety of ship berthing processes. Therefore, this system has the potential to be a supporting solution in the development of a safe and efficient smart port concept. Keywords: Internet of Things (IoT), Smart Port, Raspberry Pi, Straming System
Keefektivan Desain LKT untuk Memahami Penentuan Luas WP dan TPC Menggunakan Aturan Simpson 1/3 Wulan Marlia Sandi; Vigih Hery Kristanto; Eka Nurmala Sari Agustina; Tanti Diyah Rahmawati
JIPM (Jurnal Ilmiah Pendidikan Matematika) Vol. 14 No. 1 (2025)
Publisher : Universitas PGRI Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/jipm.v14i1.23164

Abstract

Penelitian ini bertujuan untuk menguji keefektivan desain Lembar Kerja Taruna (LKT) dalam membantu taruna memahami perhitungan luas Waterplane (WP) dan Ton per Centimetre Immersion (TPC) menggunakan aturan Simpson 1/3. Permasalahan utama yang melatarbelakangi penelitian ini adalah masih banyaknya taruna yang mengalami kesulitan menghubungkan konsep integral dengan data numerik dalam konteks perkapalan. Penelitian dilaksanakan di Politeknik Pelayaran Surabaya dengan melibatkan 43 taruna Program Studi DIII Teknika dan DIV Teknik Rekayasa Permesinan Kapal (TRPK) sebagai subjek. Metode yang digunakan ialah kombinasi kualitatif dan kuantitatif dengan instrumen berupa catatan lapangan, kuesioner pendapat positif (KPP), dan tes kemampuan kognitif (TKK). Analisis kualitatif dilakukan melalui triangulasi data, sedangkan analisis kuantitatif menggunakan uji Wilcoxon karena data berdistribusi tidak normal. Hasil penelitian menunjukkan bahwa proses pembelajaran telah berpusat pada taruna, dosen melaksanakan pembelajaran secara sistematis, dan aktivitas taruna relevan dengan tujuan pembelajaran. Sebanyak 100% taruna memberikan pendapat positif terhadap LKT, serta hasil uji Wilcoxon menunjukkan adanya peningkatan signifikan kemampuan kognitif setelah pembelajaran. Dengan demikian, dapat disimpulkan bahwa LKT yang dikembangkan efektif mendukung pemahaman taruna dalam penerapan aturan Simpson 1/3 pada perhitungan WP dan TPC.   This study aims to examine the effectiveness of the Cadet Worksheet (LKT) in helping cadets understand the calculation of the Waterplane (WP) area and Ton per Centimetre Immersion (TPC) using Simpson’s 1/3 rule. The main problem underlying this research is that many cadets still find it difficult to connect integral concepts with numerical data in the context of shipping. The research was conducted at the Surabaya Maritime Polytechnic involving cadets from the DIII Marine Engineering and DIV Ship Machinery Engineering Technology programs as subjects. The method employed was a combination of qualitative and quantitative approaches using instruments such as field notes, a positive opinion questionnaire (KPP), and cognitive ability tests (TKK). Qualitative analysis was carried out through data triangulation, while quantitative analysis used the Wilcoxon test since the data were not normally distributed. The results indicated that the learning process was student-centered, the lecturer implemented the lessons systematically, and cadet activities were relevant to the learning objectives. A total of 100% of cadets gave positive opinions regarding the LKT, and the Wilcoxon test results showed a significant improvement in cognitive ability after the learning process. Thus, it can be concluded that the developed LKT is effective in supporting cadets’ understanding of the application of Simpson’s 1/3 rule in calculating WP and TPC.
Analisis Kinerja Pembakaran Nozzle Burner Pada Auxiliary Boiler Di Mv. Pan Kristine Muhammad Akmal Dwisaputra; Rama Syahputra Simatupang; Wulan Marlia Sandi; Azis Nugroho; Shofa Dai Robbi
Impression : Jurnal Teknologi dan Informasi Vol. 4 No. 2 (2025): July 2025
Publisher : Lembaga Riset Ilmiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59086/jti.v4i2.970

Abstract

Penelitian ini bertujuan untuk menganalisis faktor penyebab dan dampak dari tersumbatnya nozzle burner pada auxiliary steam boiler di kapal MV. Pan Kristine. Permasalahan yang muncul berupa penurunan tekanan uap dan flame failure saat kapal berlabuh, yang diduga disebabkan oleh gangguan pada sistem pembakaran. Data dikumpulkan melalui observasi langsung, wawancara dengan kru mesin, dokumentasi, serta studi pustaka. Hasil penelitian menunjukkan bahwa penyumbatan nozzle burner disebabkan oleh kurangnya perawatan rutin sesuai Planned Maintenance System (PMS), sistem filtrasi bahan bakar yang tidak efisien, nozzle yang aus atau rusak, serta jarak elektroda yang tidak sesuai dengan manual book. Dampak dari kondisi ini meliputi penurunan efisiensi pembakaran, peningkatan akumulasi jelaga dan kerak di ruang bakar, serta gangguan operasi boiler secara keseluruhan. Penelitian ini merekomendasikan penerapan PMS yang ketat, pemeriksaan berkala pada filter dan nozzle, serta pelatihan kru untuk meningkatkan pemahaman terhadap sistem pembakaran guna menjamin keandalan dan efisiensi kerja auxiliary boiler.   This study aims to analyze the causes and impacts of nozzle burner clogging in the auxiliary steam boiler aboard the MV. Pan Kristine. The issue arose from steam pressure drops and repeated flame failures while the ship was anchored, suspected to result from malfunction in the combustion system. Data were collected through direct observation, interviews with engine crew, documentation, and literature study. The findings reveal that the clogging of the nozzle burner is caused by insufficient routine maintenance according to the Planned Maintenance System (PMS), inefficient fuel filtration, worn or damaged nozzles, and electrode spacing that does not comply with the instruction manual. These issues lead to reduced combustion efficiency, increased soot and scale accumulation in the combustion chamber, and overall operational disruption of the boiler. The study recommends implementing a strict PMS, regular inspection of fuel filters and nozzles, and improved crew training to ensure the reliability and efficiency of the auxiliary boiler system.  
Co-Authors Aditya Firmansyach Azis Nugroho Eka Nurmala Sari Agustina Muhammad Akmal Dwisaputra Nurdiansari, Henna Rama Syahputra Simatupang Shofa Dai Robbi Tanti Diyah Rahmawati Vigih Hery Kristanto